Project 10091

RESULTS OF ENTRAINMENT AND IMPINGEMENT STUDIES CONDUCTED AT THE BRAIDWOOD NUCLEAR STATION AND THE ADJACENT KANKAKEE RIVER

Prepared for

Commonwealth Edison Company 2 N. LaSalle Chicago, Illinois

Prepared by

EA Science and Technology 444 Lake Cook Road Deerfield, Illinois

January 1990 Project 10091

RESULTS OF ENTRAINMENT AND IMPINGEMENT STUDIES CONDUCTED AT THE BRAIDWOOD NUCLEAR STATION AND THE ADJACENT KANKAKEE RIVER

Prepared for

Commonwealth Edison Company 2 N. LaSalle Chicago, Illinois

Prepared by

EA Science and Technology 444 Lake Cook Road Deerfield, Illinois

January 1990 EXECUTIVE SUMMARY

A study was conducted to assess the environmental effects of the intake structure at the Braidwood Station, located on the Kankakee River. Major components of the 316(b) study included larval fish and macroinvertebrate sampling at four locations (plant intake, plant discharge, Kankakee River, and Horse Creek) during the period April to September 1988, larval fish survival studies at the plant's intake and discharge, and a one-year impingement study, which started in October 1988. Important findings were:

ENTRAINMENT

Fish

A total of 7197 larvae and 271 eggs were found in the 264 samples collected at the Intake. Densities were highest during the period 10 May to 28 June. Throughout the study, densities were much higher at night than during the day. Taxonomically, the intake larval collections were dominated by minnows (excluding carp) - 38%, carp - 17%, suckers - 15%, and Percina spp. - 14%.

The 406 Kankakee River samples. yielded 2590 larvae but only 41 eggs. Densities were highest during the period 24 May to 7 June. Densities at night averaged three times higher than during the day. Taxonomically, the river samples were dominated by suckers - 33%, minnows (excluding carp) - 26%, and carp - 18%. No differences in the lateral (i.e., bank to bank) or vertical (i.e., within the water column) distribution of larvae were found.

Collections in Horse Creek yielded 7087 larvae and 89 eggs from 136 samples. Densities were very high in late May and early June, the period corresponding to the peak drift of sucker larvae. Densities at night were more than 60-fold higher than during the day. Taxonomically, the Horse Creek samples were dominated by suckers - 73% and minnows (excluding carp) - 15%.

Collections at the Discharge yielded 631 larvae and 182 eggs. Peak densities occurred during the period 17-24 May. Densities at night were about twice as high as during the day. Taxonomically, the composition of fish at the Discharge was much different than at any of the other sites, being dominated by gizzard shad - 39% and Pomoxis spp. - 33%.

i Macroinvertebrates

A total of 23,509 macroinvertebrates representing 161 taxa were found in the 194 drift samples analyzed during the study. The breakdown by location was as follows:

Horse Intake River Creek Discharge

No. of Taxa 121 132 107 61 No. of Organisms 7190 13,056 1612 1651

The drift in the river was dominated by mayflies - 59% and midges - 17%. At the Intake, the dominant organisms were mayflies - 46%, midges - 23%, and naidid worms - 13%. In Horse Creek, the dominant organisms were midges - 29%, naidid worms - 22%, mayflies - 18%, and the amphipod Hyalella azteca - 10%. In the Discharge, the dominant organisms were midges - 59%, caddisfijes - 20%, and mayflies - 10%.

Survival

For three studies combined, 68% of the larvae survived passage from the river screenhouse to the one acre holding pond. Among taxa collected frequently, Lepomis spp. had a survival rate of 78% while minnows exhibited 60% survival. At the Discharge, the rate of survival for all taxa combined was 75%, largely the result of 80% survival for Lepomis spp., the dominant taxa collected.

Impact Assessment

Extrapolations of the entrainment data yielded the following estimates:

Actual Worst Case Case

Fish eggs 0.7 million 1.0 million Fish larvae 5.8 million 11.2 million Macroinvertebrates 50.3 million 123.8 million

Based on the estimated number of each of these groups in the Kankakee River, the Braidwood Station entrains 84-122% of the fish eggs in the river, 17-29 percent of the fish larvae, and 8-19 percent of the macroinvertebrates depending on whether actual or worst case estimates are used.

ii The percentage of eggs entrained is anomalously high, either as the result of spawning taking place near the Intake or other unknown factors. It was determined that impacts to fish were unlikely when entrainment losses were considered in relation to fish populations throughout the Kankakee River. However, impacts to local populations are possible, particularly to darters. Field data collected in 1989, however, has not revealed any impacts to the local fish fauna.

River flows during the period when most of the larvae were entrained (i.e., May-July) were well below historical norms and constituted worst case conditions. Since the station would take in a much smaller percentage of the river flow under normal flow conditions, impacts are much less likely during normal flows than under the worst case conditions that prevailed in 1988. Based on the lower percentage of the population affected, impacts to macroinvertebrates are less likely than those to fish.

IMPINGEMENT

The year long impingement study resulted in the collection of 59 species and 17,680 individuals. Gizzard shad dominated the catch (69%), with rock bass (10%), smallmouth bass (3%) and longear sunfish (3%) also being well represented. In terms of biomass, gizzard shad accounted for 63% of the total, followed by rock bass (9%), smallmouth bass (4%), and carp (3%). Most of the rock bass and all of the smallmouth bass were young-of- the-year or juveniles. Impingement rates were much higher during fall, winter, and spring than during the summer. Highest rates occurred in late December and early January.

Extrapolation of the data to the entire study period resulted in total impingement losses estimated to be 53,111 fish, including 36,608 (69%) gizzard shad, 5129 (10%) rock bass, and 1594 smallmouth bass (3%).

Impact Assessment

The loss of 53,000 fish will have a negligible impact on fish populations in the Kankakee River because:

(1) it isa small number compared to the total fish population in the river; (2) more than two-thirds of this number is composed of gizzard shad; (3) the estimated number of gizzard shad may be much higher than normal because of a particularly high population of this species in the river prior to the winter of 1988-89; (4) of the game fish collected, almost all were young-of-the-year or juveniles;

iii (5) no impacts were detected in either of the 1989 adult fish field studies conducted near the site; and (6) some of the fish impinged and probably most of the gizzard shad were probably already in poor condition because of disease or various other stresses, particularly winter-induced stress and morality.

Two "listed" species were impinged; two river redhorse, which are classified by the IDOC as threatened, and 16 pallid shiners (chubs), which are classified as endangered. The impingement of two river redhorse, a species which is actually fairly common in the Kankakee River, is inconsequential to its population. Extrapolation of the pallid shiner (chub) data results in the estimated loss of 73 individuals of this species, all during the period 16 April to 10 June. Although field studies conducted by EA have shown the pallid shiner (chub) to be more common and widely distributed than previously thought, the estimated loss of 73 individuals may affect the portion of the population of this species near the Braidwood Station. Such an impact remains to be documented. Although impacts to the population near the Braidwood Station are possible, it is unlikely that these losses would significantly affect the populations that exist well upstream of the station, as these individuals probably breed in separate areas.

iv TABLE OF CONTENTS .Eage

1. INTRODUCTION 1

2. METHODS 5

2.1 Entrainment 5

2.1.1 Field Procedures 5 2.1.2 Laboratory Procedures 15 2.1.3 Dye Study 17

2.2 Impingement 18

2.2.1 Field and Laboratory Procedures 18 2.2.2 Physical/Chemical Measurements 19 2.2.3 Data Analysis 19

2.3 Project Staff 19

3. RESULTS 21

3.1 Entrainment 21

3.1.1 Ichthyoplankton Drift 21 3.1.2 Macroinvertebrate Drift 64

3.2 Impingement 82

3.2.1 Species Composition 82 3.2.2 Relative Abundance 82 3.2.3 Temporal Variation 82 . 3.2.4 Length Distribution of Selected Fish Species 90 3.2.5 Impingement Estimates 95 3.2.6 Physical/Chemical Measurements 95

V Page

4. DISCUSSION 104

4.1 Ichthyoplankton Drift 104

4.1.1 Kankakee River 104 4.1.2 Horse Creek 105 4.1.3 Survival Study 106 4.1.4 Dye Studies 107

4.2 Macroinvertebrate Drift 108

4.2.1 Kankakee River 108 4.2.2 Horse Creek 110

4.3 Impingement 111

5. IMPACT ASSESSMENT 113

5.1 Potential Impacts to*Ichthyoplankton 113 5.2 Potential Impacts to Macroinvertebrates 119 5.3 Potential Impacts to Juvenile and Adult Fish 119

6. REFERENCES 123

Appendix A: Plant Operating Data 1988-1989

Appendix B: Entrainment--Larval Fish Densities, 1988

Appendix C: Entrainment--Number and Percent of Macroinvertebrates Collected, 1988

Appendix D: Entrainment--Macroinvertebrate Densities, 1988

Appendix E: Results of Surveys to Determine the Distribution of the Pallid Chub (Hybopsis amnis) in the Kankakee River, 1989

Appendix F: Impingement--Dafly Fish Collection Summary, 1988-1989

vi Appendix G: Impingement--Raw Fisheries Data, 1988-1989

Appendix H: Impingement--Temperature and Dissolved Oxygen Measurements, 1988-1989

vii LIST OF TABLES

No. Lae

1-1 Dates when the Braidwood Generating Station was 3 decoupled from the Kankakee River due to low water flows during 1988.

2-1 Depth at each sampling location during ichthyoplankton 8 collections from the Kankakee River, 1988.

2-2 Summary of flows in Horse Creek and the Kankakee River 11 for those dates when ichthyoplankton samples were collected in 1988.

2-3 Reported total volume pumped on each sampling date at 13 the Braidwood Intake 1988.

2-4 Reported volume released on each sampling date at the 14 Braidwood Discharge, 1988.

2-5 EA staff and consultants who participated in the 1988 - 20 1989 Braidwood 316(b) Study.

3-1 Total number and percent of larvae collected in the 22 Kankakee River, 1988.

3-2 Die] differences in larval fish densities during 24 ichthyoplankton collections in the Kankakee River, 1988.

3-3 Total number and percent of larvae collected in 28 Horse Creek, 1988.

3-4 Total number and percent of larvae collected at the 32 Braidwood Intake.

3-5 Diel differences in larval fish densities during 36 ichthyoplankton collections at the Braidwood Intake, 1988.

3-6 Total number and percent of larvae collected at the 38 Braidwood Discharge, 1988.

viii LIST OF TABLES (Cont.)

N.Page

3-7 Total number and survival proportions of each taxa 44 and life stage collected during three intake entrainment survival studies at the Braidwood Generating Station, 1988.

3-8 Total number and survival proportions of each taxa and 46 life condition collected during entrainment survival studies on 1 June, 7 June, and 5 July 1988.

3-9 Statistical comparisons of larval and ichthyoplankton 52 densities among four locations on the Kankakee River.

3-10 Weekly estimates of fish eggs and larvae drift in Horse 53 Creek, 1988.

3-11 Estimates of weekly ichthyoplankton abundance at four 57 sites near the Braidwood Station, 1988.

3-12 Weekly estimates of fish eggs and larvae drift in the 58 Kankakee River, 1988.

3-13 Actual case estimates of weekly entrainment of fish 60 eggs and larvae at the Braidwood Station Intake, 1988.

3-14 Worst case estimates of weekly larval fish and egg 61 entrainment at the Braidwood Station Intake, 1988.

3-15 Weekly actual case estimates of fish eggs and larvae 62 discharged into the Kankakee River by the Braidwood Station, 1988.

3-16 Maximum weekly estimates of fish eggs and larvae 63 discharged into the Kankakee River by the Braidwood Station, 1988.

3-17 The distribution of drifting macroinvertebrates among 65 sampling sites near the Braidwood Station, 1988.

ix LIST OF TABLES (Cont.)

No. Pare

3.18 Relative abundance of the dominant macroinvertebrate 71 taxa collected near the Braidwood Station, 1988.

3-19 Diel differences in macroinvertebrate densities during 72 collections in the Kankakee River, 1988.

3-20 A comparison of macroinvertebrate taxa common between the 75 Braidwood Intake and the Kankakee River or Horse Creek, 1988.

3-21 Density of Macroinvertebrates collected at Braidwood 76 Station Intake, 1988

3-22 Weekly estimates of macroinvertebrate drift in the 79 Kankakee River near the Braidwood Station, 1988.

3-23 Estimates of the number of macroinvertebrates actually 80 entrained at the Braidwood Station, 1988.

3-24 Worst case estimates of macroinvertebrates entrained 81 at the Braidwood Station, 1988.

3-25 Abundance of fish captured during the 1988-1989 83 Braidwood Impingement Study.

3-26 Comparison of fish species in impingement and river 84 collections from the Kankakee River near the Braidwood Station.

3-27 Weekly estimated impingement of selected species and 99 total catch at the Braidwood Station, 1988-1989.

3-28 Summary of surface temperature and dissolved oxygen 101 measurements collected during impingement sampling at the Braidwood Station, 1988-1989.

3-29 Current Velocities at the Intake of the Braidwood 103 Station on the Kankakee River.

X LIST OF TABLES (Cont.)

No.Page

5-1 Comparison of species and taxa most and least likely to 116 be impacted by entrainment.

5-2 Comparison of mean monthly flows for the period April 118 through September, 1977-1988.

xi LIST OF FIGURES

No. age

1-1 Locations of sampling sites during the Braidwood 2 Station Entrainment and Impingement Studies, 1988-1989

2-1 Sampling Locations in the Kankakee River, Horse Creek, 6 Intake, and Discharge during Entrainment Studies, 1988

2-2 Bathymetric Cross-Section Showing Width and Depth of 9 Each Sampling Location in the Kankakee River, 1988

2-3 1988 Kankakee River Flow, April - September 10

3-1 Kankakee River Diel Density Differences 25

3-2 Horse Creek Diel Density Differences 29

3-3 Braidwood Intake Diel Density Differences 37

3-4 Braidwood Discharge Diel Density Differences 41

3-5 Comparison of Densities Between Total Catch and the 42 catch of Dominant Taxa Collected at the Discharge, 1988

3-6 Flow of Dye from Horse Creek to the Braidwood Station 54 Intake Structure

3-7 Total Fish Collected, Braidwood Impingement 1988-1989 88

3-8 Gizzard Shad Collected, Braidwood Impingement 1988-1989 89

3-9 1988-89 Braidwood Station Impingement Study - 91 Length Frequencies (Gizzard shad)

3-10 1988-89 Braidwood Station Impingement Study - 92 Length Frequencies (Rock bass)

3-11 1988-89 Braidwood Station Impingement Study - 93 Length Frequencies (Smallmouth bass)

xii List of Figures (Cont.'

No.Page

3-12 1988-89 Braidwood Station Impingement Study - 94 Length Frequencies (Longear sunfish)

3-13 1988-89 Braidwood Station Impingement Study - 96 Length Frequencies (Bluegill)

3-14 1988-89 Braidwood Station Impingement Study - 97 Length Frequencies (Silver redhorse)

3-15 1988-89 Braidwood Station Impingement Study - 98 Length Frequencies (Shorthead redhorse)

xiii 1. INTRODUCTION

The Braidwood Generating Station is located near Godley, Illinois, approximately three miles southeast of the Kankakee River. The station consists of two nuclear powered generating units, each having an 1120 megawatt capability. The station design includes a 2,640 acre cooling pond. The source of make-up water for the cooling pond is the Kankakee River. The river screenhouse is located on the south bank of the Kankakee River approximately 0.5 miles downstream of Custer Park, Illinois. Water is pumped from the screenhouse to the cooling pond through an underground pipeline. In 1988, the generating station began commercial operation: on 29 July for Unit One and on 17 October for Unit Two. The llinois Environmental Protection Agency required that an entrainment study and a one-year impingement monitoring study be conducted to evaluate the intake with respect to 316(b) requirements.

To address these requirements, an entrainment study was initiated in the spring of 1988 and an impingement study was initiated in the fall of 1988 in a small section of the Kankakee River and Horse Creek near Custer Park, Illinois (Figure 1-1). The purposes of these studies were to describe the drifting ichthyoplankton and macroinvertebrate populations, estimate the magnitude of entrainment of these populations at the Braidwood intake structure, and estimate impingement losses at the Braidwood Intake. Although commercial operation did not begin until July, pumping began in April to accommodate this study. Although the station was operating during the entire study period, the Intake was decoupled on 35 days during the period 8 July to 22 August (Table 1-1) to fulfill an agreement with the Illinois Department of Conservation (IDOC) not to withdraw water from the river during critical low-flow periods (Larimore and Peterson 1989). The discharge structure was operating during this period.

Baseline ichthyoplankton studies for the Braidwood Station have been conducted by Westinghouse (1973; 1975), Bergman (1978), Bergman and Hutton (1979) and Bergman et. al (1980), and include information on ichthyoplankton abundance, distribution, and occurrence as well as estimates of drift.

Specific objectives of the Braidwood entrainment study include:

1. Estimate fish egg and larvae entrainment at the Braidwood intake structure on the Kankakee River and the percent of larvae surviving the transit from the river to the cooling pond.

2. Estimate fish egg and larvae drift in the Kankakee River upstream of the Braidwood intake structure.

1 I

.0 Wilmington

o 5 Kilometers

Meters

Custer Park

FIGURE 1-1. Locations of Sampling Entrainment Sites during and Impingement the Braidwood Studies, 1988-1989. Station Revised from Larimore and Peterson 1989.

2 TABLE 1-1 DATES WHEN THE BRAHDWOOD GENERATING STATION WAS DECOUPLED FROM THE KANKAKEE RIVER DUE TO LOW WATER FLOWS DURING 1988

Not decoupled (pumping when needed, not limited by low water) Decoupled Pumping Before 8 JUL 8-13 JUL 14-15 JUL 16 JUL 17 JUL 18 JUL 19 JUL 20 JUL 21 JUL 22 JUL-14 AUG 15-20 AUG 21-22 AUG

After 23 AUG Source: Larimore and Peterson 1989

3 3. Estimate fish egg and larvae abundance in the blowdown from the cooling pond at the Braidwood discharge structure into the Kankakee River and determine the percent of larvae surviving the transit from the cooling pond to the river.

4. Examine two hundred of the samples collected during the fish egg and larvae program to assess macroinvertebrate drift.

5. Assess the impact of the Braidwood Generating Station in terms of percent of the fish and macroinvertebrate drift populations entrained by the station.

A preliminary impingement study was conducted at the Braidwood Intake during the period December 1980 to February 1981 (CeCo 1981). The objectives of the current impingement study were:

1. Estimate fish impingement at the Braidwood intake.

2. Assess the impact(s) of this impingement on fish populations in the Kankakee River.

4 2. METHODS

2.1 ENTRAINMENT

2.1.1 FIELD PROCEDURES

Collections were made during both the night and day at four locations: the Kankakee River, the Braidwood intake, the Braidwood discharge, and Horse Creek. Night sampling was initiated no earlier than 0.5 h after sunset.

2.1.1.1 Kankakee River

Ichthyoplankton samples were collected on Tuesdays from 19 April to 13 September 1988 in the Kankakee River along a transect at the Norfolk and Western Railroad Bridge. Collections along the railroad bridge transect were made at four points (KI, K2, K3 and K-4) (Figure 2-1). Location K1 was located near the right bank (facing downstream) and Location K4 was located near the left (plant side) shoreline. The railroad tressels were used as boundaries between locations. The sequence in which the points along the transect were sampled was randomly chosen each time. Two depths (surface and bottom) and two replicates per depth were sampled at each point, once during the day and again during the night over a 24-hour period. This resulted in the collection of 32 samples from the Kankakee River each week:

4 pts x 2 depths/pt x 2 reps/depth x 2 time periods = 32

Samples were taken using a conical plankton net (No. 0 mesh, [505 micron] 2.5 meters in length with a 0.5 meter diameter opening) attached to a 0.4 meter square frame. A plankton bucket was attached to the cod end of the net and a calibrated General Oceanics (GO) flow meter (Model 2030) was positioned in the center of the square frame. During collections at each location the boat was anchored in position and one surface and one bottom samples were collected simultaneously. The replicates were collected by repeating this procedure a second time. Nets remained in the water from 6 to 47 minutes, depending on current velocity. Times were adjusted to yield sample volumes of 40m3 . Because net avoidance increases as velocity decreases, samples were not collected at velocities <0.2-0.3 ft/s. When shallow water (less than 0.85 m) prevented collecting the bottom samples, surface samples only were collected. During low flow periods, there was negligible current velocity at some points along the transect and/or at certain depths. When this occurred, no samples were collected from such areas. During periods when less than the scheduled number of samples were collected, velocities were typically documented and recorded using Marsh-McBirney current meter. Total depth at each location for each sampling date is presented in Table 2-1. Depth was variable among dates because areas of greatest velocity

5 &W RAILROAO

INTAKE

DISCHARGE "I'

0 150 300

SCALE IN METERS LEGEND

SAMPLING STATIONS

Figure 2-1. Sampling Locations in the Kankakee River, Horse Creek, Intake, and Discharqe durinq Entrainment Studies, 1988;

Revised from Bergman et al. 1980.

I I were selected for sampling (Table 2-1). A bathymetric cross section showing the width and depth across the transect is presented in Figure 2-2.

All samples were preserved in the field with 10 percent formalin containing rose bengal and returned to the laboratory for processing and analysis. Of the 406 river samples analyzed for ichthyoplankton, 129 samples were also analyzed for macroinvertebrates.

Flow rates in the river for April-September 1988 (Figure 2-3) were recorded at the Wilmington spillway (U.S. Geological Survey), which is located approximately 5.6 kilometers downstream of the intake. As in the past, it was assumed that there was no difference in flow rates between the Wilmington spillway and the sampling area (Bergman et. al. 1980). Flow rates in the river for each sampling date are presented in Table 2-2.

2.1.1.2 Horse Creek

Ichthyoplankton samples were collected each Tuesday from 19 April to 13 September, in Horse Creek approximately 1.2 km upstream of its mouth in an area known as the "big riffle" (Sule and Skelley 1985) (Figure 2-1). Four replicate samples were collected consecutively at one location (HI) during the day and again during the night during each 24- hour period. This yielded a total of 8 samples each sampling period. A conical net attached to a square frame (as described in Section 2.1.1.1) was secured to poles driven into the substrate. The net was raised and'lowered into the water by hand. Nets remained in the water from 7 to 35 minutes depending on current velocity and depth. Times were adjusted to yield sample volumes of about 40m3. On most sampling dates, a portion of the net was exposed so the period of time the net was left in place was increased to compensate for the amount of net exposed.

Of the 136 samples analyzed for ichthyoplankton, 18 samples were also analyzed for macroinvertebrates. All samples were preserved in the field with 10 percent formalin containing rose bengal.

Stream discharge of Horse Creek (Table 2-2) was calculated in accordance with USGS procedures (USGS 1969) once during each 24-hour sampling period. To calculate discharge, a line marked in 1.25 and 2.5 ft. intervals, was stretched across the stream. Depths and velocities were measured at every 2.5 ft. interval along the line. When appropriate, additional measurements were taken at 1.25 intervals in order to keep the flow in any one segment (vertical) to < 10 percent of the total flow. A permanent marker was established on the right bank of the creek and distance offshore was measured from this fixed point to the waters edge on each date of discharge measurements. Velocity measurements were taken with a calibrated Marsh-McBirney current meter. Measurements were made at 0.6 depth below the surface because water depth did not exceed 2.5 ft during the study.

7 TABLE 2-1 DEPTH AT EACH SAMPLING LOCATION DURING ICTHYOPLANKTON COLLECTIONS FROM THE KANKAKEE RIVER, 1988

Date Location K2 K3 K4 19APR 5.5(a) 6.0 5.5 NC(b) 26APR NC NC NC NC 3MAY 4.0 6.0 6.2 2.7 10MAY 4.7 4.2 6.3 2.3 17MAY 4.4 4.8 3.8 2.0 24MAY 4.3 5.6 5.1 1.7 31MAY 3.8 5.3 3.8 1.4 7JUN 3.7 4.5 3.2 1.5 14JUN 3.3 5.7 4.2 1.3 21JUN 3.1 6.5 5.4 1.3 28JUN 2.6 3.9 5.2 1.1 5JUL 2.4 3.8 5.1 1.1 12JUL 2.6 3.5 NC 0.9 19JUL 2.8 3.9 5.3 NC 26JUL 2.5 6.3 5.6 0.9 2AUG 2.8 6.1 5.1 1.1 9AUG 2.8 5.6 5.2 0.9 16AUG 3.1 3.5 5.7 1.2 23AUG 3.1 3.8 5.8 1.3 30AUG 2.9 5.7 5.4 1.1 ISEP 3.4 5.4 5.4 1.2 13SEP 3.6 5.6 6.2 1.5 a) Depth in feet. b No collection made.

8 Right Bank Left Bank Shore 0.0 Shore Location 4 Location 3 Location 2 1.0- Location 1

2.0-

1. 3.0-

4.0-

s.o- Date: 2 August 1988 Width: 491.7 ft Flow: 329 cfs

6 .0 ...... , . . , . ,. . . ' . . . . 1 . . ' . . I . . . . Ts.. oro' 10 20 30 40 50 60 7"0 00 100 20 30 40 50 60 70 80000q0 20 30 40 sOo0 70 90O 0 1102;•O0 40 506 0 7080 400 10 20 M0 40 50 80 70 80 05M

Distance (fit)

Figure 2-2. Bathymetric cross-section showing width and depth of each sampling location in the Kankakee River, 1988. Figure 2-3.

1988 Kankakee River Flow April - September 20-

15-

(I)

0

&

0 1 15 29 13 27 10 24 8 22 5 19 2 16 30 APR MAY JUN JUL AUG SEP

I TABLE 2-2 SUMMARY OF FLOWS IN HORSE CREEK AND THE KANKAKEE RIVER FOR THOSE DATES WHEN ICHTHYOPLANKTON SAMPLES WERE COLLECTED IN 1988

Horse Creek Kankakee River,(m /sec) Date (dfs) (m-'/sec) (cfSO 19 April 51.8 1.47 5,800 164.26 26 April 48.6 1.38 4,300 121.78 3 May 38.6 1.09 3,690 104.50 10 May 39.6 1.12 3,410 96.57 17 May 29.1 0.82 2,510 71.08 24 May 33.2 0.94 2,090 59.19 31 May 15.9 0.45 1,970 55.79 7 June 10.6 0.30 1,320 37.38 14 June 6.1 0.17 889 25.18 21 June 3.5 0.10 785 22.23 28 June 2.2 0.06 532 15.07 5 July 2.5 0.07 535 15.15 12 July .5 0.01 392 11.10 19 July 1.6 0.04 448 13.00 26 July 2.5 0.07 484 13.71 2 August .4 0.01 329 9.32 9 August 7.0 0.20 362 10.25 16 August 1.5 0.04 508 14.39 23 August 6.4 0.18 508 14.39 30 August 5.1 0.14 484 13.71 6 September 2.7 0.08 535 15.15 13 September 2.1 0.06 594 16.82

11 2.1.1.3 Intake

The intake was sampled each Tuesday from 19 April through 13 September 1988. Plankton nets (as described in Section 2.1.1.1) were suspended in the forebay of the intake between the trash racks and the traveling screens. In each of two intake bays at the river screenhouse, two locations within each bay (11 and 12 in upstream bay and 13 and 14 in downstream bay) and two depths (near surface and near bottom) were sampled once during the day and again during the night during each 24-hour period. The sampling sequence was randomized to the extent possible. Due to low and variable velocities in the intake bays, various sampling schemes were used to collect up to 16 samples on each date. As previously mentioned, the specifications called for sampling four locations at two depths; because of sampling dates. On low current velocities, this could be accomplished on only 3 of the 22 3 all other dates, replicates were taken in areas where velocity was sufficient to yield a 40 m sample. Filtering times for a 40 m3 sample ranged from 15 to 50 minutes. On some dates samples of <40 m3 were kept in order to provide data for that date. No samples were collected during periods when the plant was decoupled (Table 1-1). Of the 264 samples analyzed for ichthyoplankton, 37 samples were also analyzed for macroinvertebrates. All samples were preserved in the field with 10 percent formalin containing rose bengal and returned to the laboratory for processing. Net clogging was not a problem on any date as debris load was very low in the samples collected. Intake pumping rates during each sampling date are presented in Table 2-3.

2.1.1.4 Discharge

On Tuesdays for 13 weeks, beginning April 5th and ending June 28th, day and night replicate, mid-depth, samples were collected in the discharge canal to the Kankakee River. The plankton net (as discussed in Section 2.1.1.1) was suspended in mid-channel, approximately 10 meters downstream of the outfall structure, by a rope and pulley system. During each time period, two replicates were collected consecutively. Filtering times ranged from 8 to 35 minutes to yield a 40 m3 sample volume. All samples were preserved in the field with a 10% formalin solution containing rose bengal.

All samples were collected at the discharge as scheduled. Of the 52 samples analyzed for ichthyoplankton, 10 were also analyzed for macroinvertebrates. Discharge flow data for each sampling date is presented in Table 2-4.

2.1.1.5 Fish Survival

Intake and Discharge survival studies were conducted three times at each site from early June through early July, with all sampling being at least 6 days apart. The discharge studies were conducted only during the day, whereas the intake studies were conducted only during

12 TABLE 2-3 REPORTED TOTAL VOLUME PUMPED ON EACH SAMPLING DATE AT THE BRAIDWOOD INTAKE 1988

DATE 19APR 70.56 26APR 60.25 3MAY 65.28 10MAY 56.88 17MAY 69.12 24MAY 66.24 31MAY 69.12 7JUN 69.12 14JUN 72.0 21JUN 69.12 28JUN 69.12 5JUL 55.35 12JUL OFF b, 19JUL 39.82 26JUL OFF 2AUG OFF 9AUG OFF 16AUG 41.76 23AUG 21.96 30AUG 69.12 6SEP 69.12 13SEP 64.80

b)a) PlantMillion decoupled. Gallons.

13 TABLE 2-4 REPORTED VOLUME RELEASED ON EACH SAMPLING DATE AT THE BRAIDWOOD DISCHARGE, 1988

Date MG(a) 5APR 20.4 12APR 20.0 19APR 20.3 26APR 20.0 3MAY 20.1 10MAY 19.2 17MAY 19.4 24MAY 19.7 31MAY 19.2 7JUN 20.6 14JUN 21.3 21JUN 20.5 28JUN 8.4 (a) Million Gallons.

14 the day and twice at night. A No. 0 mesh plankton net with a 1.0 meter opening was used for all collections. The bucket on the cod end of the net was removed to reduce mortality caused by impinging larvae on the bucket's screen. The cod end was secured by tying it very tightly with a piece of string. Eight to fourteen replicate two minute collections were required to filter a minimum of 10Om 3 for each study. A current meter was initially used to locate areas where velocities were < 0.5 ft./sec. The net was either positioned at such locations or allowed to move with the current in order to reduce the collection velocity. Collection velocities for each replicate were continuously monitored by determining the number of counts on the attached flowmeter (G.O. Model 2030) during each two minute sampling period. The volume of water sampled and the average collection velocity were also determined with the flowmeter that was suspended in the mouth of the net.

Following collection, the cod end of the net was placed in a 5 gallon bucket containing water, gently untied and rinsed into the bucket. Small volumes of sample were carefully poured into a glass tray for sorting. An illuminated magnifier was used to aid in the location and recovery of captured fish larvae. Samples were immediately sorted on site into three categories: live, dead-transparent, and dead-opaque. Differences in opacity have been observed among dead fish larvae and it has been suggested the opaque larvae probably died prior to collection, whereas transparent larvae were killed by collection or condenser passage (Marcy 1976; King 1978). Sorting was always completed within 20 minutes of collection. Larvae, separated according to the above three categories, were preserved in 10 percent buffered formalin for later identification. Identification procedures for the survival studies were the same as for the entrainment samples (Section 2.1.2.1).

Survival proportions for individual taxa or life stages were calculated as follows:

Sp = Number of Live Larvae Number of Live and Dead-transparent larvae

The following assumptions are made when using this formula: 1) opaque larvae are dead before passage, and 2) transparent larvae died during passage through the system. Since transparent larvae are assumed to be killed during passage, survival proportion values should be considered minimal values as some mortality may have been caused by collection.

2.1.2 LABORATORY PROCEDURES

2.1.2.1 Ichthyoplankton

All ichthyoplankton samples were hand picked with the aid of an illuminated magnifier. Larvae from these samples were identified using a dissecting scope equipped with polarizing

15 lenses. Ichthyoplankton identifications were made to the lowest practical taxonomic level using current references and taxonomic keys. A positive separation of Hypentelium and Moxostoma could not be made due to overlapping characteristics. Members of these genera were combined and are referred to as Catostomid D based on Hogue et. al. 1976. Cyprinid N were initially identified by EA as striped shiner. Upon conflicting verifications by two experts, Cyprinid N is most likely striped shiner, but more than one species may be involved. Larvae were categorized as yolk-sac (prolarvae), post yolk-sac (postlarvae), and juveniles. These categories are defined by Auer (1982) as follows:

1. Yolk-sac larvae - Phase of development from the moment of hatching to complete absorption of yolk.

2. Post yolk-sac - Phase of development from the complete absorption of yolk to the development of the full complement of adult fin rays and absorption of finfold. (The post yolk-sac phase, as defined here, does not occur for the family Ictaluridae).

3. Juvenile - Phase of development from complete fin ray development and finfold absorption to sexual maturity.

Total lengths of fish larvae and diaineters of fish eggs were measured to the nearest 0.1 mm with an ocular micrometer. A maximum of 30 specimens were measured for each life stage of each taxa in each sample.

Subsampling was implemented only on samples collected from Horse Creek the night of 31 May, during peak catostomid drift. Subsampling of these four samples consisted of sorting out all non-catostomids and identifying them individually. Thirty specimens of the remaining group (catostomids) were then selected at random to determine if all the specimens all were from the same taxon. When it was determined all the catostomids present were from the same taxon, 100 of them were weighed and a mean weight determined. The number of specimens remaining in the sample was estimated using this mean weight value. A reference collection was compiled for each taxa of fish larvae and was verified by Dr. Jay Hatch of the University of Minnesota's James Ford Bell Museum of Natural History.

2.1.2.2 Macroinvertebrates

Of the 858 samples analyzed for ichthyoplankton, 194 were also analyzed for macroinvertebrates. Two hundred samples were originally scheduled to be analyzed in proportion to the number ichthyoplankton samples collected from 19 April through 29

16 August. The selection process was stratified so that each date and time period was represented (e.g., of 120 samples from the Kankakee River to be analyzed, 60 samples would be taken from both the day and night collections [=3 samples per day and 3 samples per night for each week of the 20 week sampling period]). However, due to missed samples caused by low flow conditions, a representative cross-section of additional samples from September and other dates was assembled in order to obtain as close to 200 samples as possi'ble. The specific location, depth, or replicate analyzed for each date and time period was chosen at random. The breakdown of the 194 samples was as follows: Day Ni Total

Kankakee River 66 64 130 Intake 18 18 36 Horse Creek 8 10 18 Discharge 5 5 10

Macroinvertebrates were defined as those held by a U.S. Standard No. 30 mesh sieve. Prior to analysis, each sample was rinsed on a No. 30 mesh sieve to remove preservatives. The sample material was then sorted, a small portion at a time, under a dissection microscope at 1oX magnification. All organisms, except oligochaetes and chironomids were identified and enumerated during this initialsorting procedure. Oligachaetes and chironomids were placed on glass slides in a non-resinous mounting media for examination under a compound binocular microscope at 40-1000X magnifications. All organisms were identified using state- of-the-art taxonomic keys. A reference collection of each taxa identified was compiled for subsequent verification.

2.1.3 DYE STUDY

Under low flows (<2000 cfs), a riffle area between the mouth of Horse Creek and the Braidwood intake becomes exposed. At flows <1300 cfs, the riffle becomes completely exposed and forms a peninsula jutting out into the river. It was hypothesized that under low flows the exposed riffle might direct water coming out of Horse Creek towards the north (opposite) shore of the river, away from the influence of the Braidwood intake. To determine the path taken by water from Horse Creek when the riffle is exposed, dye studies were conducted under low flow conditions. These low flow studies were done when the plant was- pumping and again when it was not pumping.

During the two surveys, Rhodamine dye was added to Horse Creek about 50 m upstream of its mouth. The course of the dye plume was based entirely on visual observations. If necessary, a second aliquot of dye was added near the mouth of Horse Creek to reinforce the intensity of the color. The movement of the plume was tracked by walking along the

17 edge of the river and along the riffle. Once the leading edge of the plume passed the downstream end of the riffle, observations were made from the top of the intake structure.

2.2 IMPINGEMENT

2.2.1 FIELD AND LABORATORY PROCEDURES

Impingement monitoring at the Braidwood Station began on 11 October 1988 and ended on 4 October 1989. Twenty-four hour samples were typically collected three times per week on consecutive days. The sample periods were from approximately 9:00 a.m. Monday to 9:00 a.m. Tuesday; 9:00 a.m. Tuesday to 9:00 a.m. Wednesday; and 9:00 a.m. Wednesday to 9:00 a.m. Thursday. Monday's, Tuesday's, and Wednesday's collections represented the three weekly 24-hour impingement collections. A total of 132 out of a maximum of 156 collections were made during the one-year study. No samples were collected during: 1) legal holidays; 2) periods in which the cooling pond was full and pumping did not occur; or 3) periods when there were mechanical problems at the intake.

Immediately before each sampling period, the traveling screens were manually rotated by station personnel to remove debris and a clean trash basket set into place. At the end of each 24-hour period, the traveling screens, if not already operating, were manually operated to remove all impinged fish. An EA staff member was present when the trash basket was emptied at the end of each sampling period. Fish obviously dead longer than 24 hours were removed from the sample and recorded separately. All fish were identified, counted, weighed, measured, examined for marks or tags and this data was recorded. Minnows were measured and batch weighed. When necessary, due to large numbers of fish, the following subsampling technique was utilized. For less than 30 of a single species in a collection period, each individual was weighed and measured. If over 30 individuals of a species were collected, all fish were counted, and a total weight taken. A minimum of 30 individuals were selected based on an interval calculated from the total number captured divided by 30. For example, if 500 individuals of a species were collected, then every 17th fish was weighed and measured. For an interval between 30 and 60 fish, data was taken such that 30 individuals were weighed and measured. Except for gizzard shad, fish usually were returned to EA's laboratory for processing.

A voucher collection consisting of each species of impinged fish (juvenile and adult, when available) £was compiled and will be maintained for a period of five years unless Commonwealth Edison provides notice that the collection can be terminated at an earlier date. The reference collection was verified by Dr. David Etnier, University of Tennessee. All pallid shiners (chubs) collected have been verified by either Dr. Etnier or Dr. Larry Page, Illinois Natural History Survey.

10 2.2.2 PHYSICAL/CHEMICAL MEASUREMENTS

At the time of sampling, temperature and dissolved oxygen (DO) were measured at one intake bay. A Whitney Model T-10C thermistor was used for temperature measurements and a YSI Model 54A DO meter or Winkler titration was used to measure DO. When the DO meter was used, it was calibrated against a Winkler titration before each use. Temperature (C) and DO (ppm) were measured at top, middle, and bottom depths on all dates.

Velocity profiles were measured during two pump operation during a high and a low flow regime on the Kankakee River. These measurements were made using a Marsh-McBirney Model 201 Current Meter at four locations across each screen bay. The measurements were made at the surface and at every meter in the water column.

Plant operating data (e.g. pumping rates and number of pumps operating) was compiled for the entire study period by CeCo personnel and is included here as Appendix A.

2.2.3 DATA ANALYSIS

The fish collected were expressed as numbers per species per date, and weekly and annual impingement estimates were made for the total catch, and the catches of gizzard shad, smallmouth bass, rock bass, and pallid shiner. Estimates of the total number of fish impinged at the Braidwood Station were calculated by week and for the entire one-year study period based on the assumption that the number of fish impinged on non-sampling dates in a week was equal to the average number impinged on the dates that were sampled that week. Therefore, weekly estimates were calculated using the following formula:

Estimated number Total number collected per week impinged per week = Sampling hours per week x 168 hours

The annual estimate was the sum of the weekly estimates.

2.3 PROJECT STAFF

Technical staff who participated in this study are listed in Table 2-5 along with their responsbilities.

14 TABLE 2-5 EA STAFF AND CONSULTANTS WHO PARTICIPATED IN THE 1988-89 BRAIDWOOD 316(b) STUDY

EA PRINICPAL PROJECT STAFF

Greg Seegert - Project Manager; Report Preparation; Data Analysis; Fish Identification and Verification; Client Consultation; Staff Supervision.

Joe Vondruska - Field Crew Leader; Larval Fish Identification; Quality Assurance; Report Preparation; Staff Training; Data Managment.

Ken Cummings - Principal Field and Laboratory Technician for Impingement and Entrainment Field Collections and Laboratory Processing; Field, Laboratory, and Data Preparation; Staff Training. Data Processing and Data Programming Ron Bockelman - Manager. PA FIELD AND LABORATORY STAFF 1FA FIRLD ANDLABORATORY STAFF Richard Bistry - Impingement Field Technician Tom Serafini - Impingement and Entrainment Field Technician Lowel LaMarr - Entrainment Field Technician Paul Jaderholm - Entrainment Field Technician and Laboratory Entrainment Processing Karin Cosner - Laboratory Entrainment Processing Tracy Layfield - Macroinvertebrate Identification Joe Vondruska - Larval Fish Identification Greg Seegert - Adult Fish Identification Ken Cummings - Adult and Larval Fish Sorting

Taxonomic Consultants

Dr. Jay Hatch - Larval Fish Dr. Dave Etnier - Impinged Fish Mr. Dean Geers - Macroinvertebrates Mr. Randy Lewis- Macroinvertebrates Mr. Tom Simon - Larval Fish

20 3. RESULTS

3.1 ENTRAINMENT

3.1.1 ICHTHYOPLANKTON DRIFT

3.1.1.1 Kankakee River

Weekly ichthyoplankton collections from 19 April through 13 September 1988 from the Kankakee River yielded 21 taxa representing 6 families (Table 3-1). A total of 2,590 larvae and 41 eggs were sorted from the'406 ýamples collected during the 22-week study. Due to low flow conditions that prevailed during most of the 1988 study period, only 58 percent of the scheduled samples could be collected.

Fish eggs collected during 1988 ranged from 1.3 to 2.0 mm in diameter. Most eggs appeared to be viable and ranged in development from the early cleavage stages to early embryo stages (Long and Ballard 1976). Eggs were present in the drift on only 5 of 19 sampling dates, with 80 percent being collected on 19 July:

Density Date Number Percent (No./10m3) Diameter Range (mm) 24 MAY 1 2.4 <0.01 1.8 31 MAY 1 2.4 0.01 1.3 7 JUN 2 4.9 0.01 1.9-2.0 21 JUN 4 9.8 0.03 1.3-1.5 19 JUL 33 80.5 0.56 1.5-1.8

The density of eggs was highest on 19 July (0.64 eggs per lOm 3). All eggs collected in the river were demersal, lacked oil globules, and had very small perivitelline spaces. Based on these characteristics and the size of the eggs, all eggs were probably from cyprinids.

Catostomid D (20.8 percent), carp (18.0 percent), Ictiobinae (11.6 percent), Notropis sp. (11.5 percent), and unidentified cyprinids accounted for 73.0 percent of the total number of larvae collected in the Kankakee River (Table 3-1). Other taxa which composed one percent or more of the total catch included Percina sp. (6.7 percent), Lepomis sp. (5.8 percent), Etheostoma sp. (3.0 percent), fathead minnow (2.3 percent), rock bass (1.6 percent), rainbow/banded darter (1.4 percent), and channel catfish (1.0 percent). Unidentified damaged fish larvae accounted for the remaining 5.3 percent (Table 3-1).

21 TABLE 3-1 TOTAL NUMBER AND PERCENT OF LARVAE COLLECTED IN THE KANKAKEE RIVER, 1988

Species No. % Gizzard shad 1 0.04 Common carp 467 18.03 Hornyhead chub 11 0.42 Golden shiner 23 0.89 Rosyface shiner 2 0.08 Spotfin shiner 1 0.04 Unid Notropis 299 11.54 Fathead minnow 60 2.32 Cyprinid N 1 0.04 U cyprinid 287 11.08 Unid Moxostoma 2 0.08 Catostomid D 538 20.77 Unid Ictiobinae 301 11.62 Unid catostomid 4 0.15 Channel catfish 26 1.00 Stonecat 18 0.69 Rock bass 41 1.58 Unid Lepomis 149 5.75 Smalimouth bass 8 0.31 Unid Pomoxis 4 0.15 Unid centrarchid 1 0.04 Rainbow darter 10 0.39 Johnny darter 1 0.04 Rainbow/banded darter 35 1.35 Unid Etheostoma 78 3.01 Logperch 1 0.04 Unid Percina 173 6.68 Unid percid 14 0.54 Unidentified 34 1.31 All species 2590 100.00

22 The mean length of all larvae measured from the Kankakee River was 8.3 mm, and ranged from 3.2 to 24.2 mm. Length data for the abundant taxa show that group D catostomids and Ictiobinae were distinctly larger than other taxa:

Length (mm) Taxa No. MEAN MIN MAX

Carp 451 6.06 4.9 10.5 Notropis sp. 283 5.37 4.2 12.5 Unid Cyprinidae 302 5.69 3.2 10.2 Catostomid D 453 15.56 11.9 22.5 Ictiobinae 285 8.01 5.9 16.0 Lepomis sp. 149 5.69 4.0 13.2 Etheostoma sp. 88 6.60 4.9 13.7 Percina sp. 173 6.77 4.5 24.2

Mean lengths for other common taxa ranged from 5.37 mm (Notropis sp.) to 6.77mm (Percina sp.). The mean length of Catostomid D in the Kankakee River was higher than at the other three sampling areas (i.e. - Discharge, Intake, and Horse Creek).

Larval fish were present on all sampling dates except for the two sampling dates in September and 3 May. The mean.density (day and night combined) for the study was 0.85 larvae per 10n 3, ranging from 0 to 3.87 larvae per lOm 3. For the period 10 May 28 June, night larval densities were 2 to 10 times higher than day densities (Table 3-2). For the entire study, day densities ranged from 0 to 1.43 larvae per 10m3 and avera.ged 0.37 larvae per 10m"; whereas, night densities ranged from 0 to 7.02 larvae per 10m and averaged 1.27 larvae per Oim3 (Figure 3-1).

Mean larval densities (day and night combined) were highest (2.32 to 3.87 larvae per 10m 3) from 24 May through 7 June. This was the same period that larval densities were also highest at the other three sampling sites (i.e. Horse Creek, Discharge and Intake). Before and after this period, densities in the river ranged from 0 to 1.30 larvae per lOmi3. The peak on 31 May (3.87 larvae per 10m3 ) was dominated by group D catostomids (probably redhorses) (Figure 3-1). Two secondary peaks, on 21 June and 26 July, were dominated by cyprinids (Appendix B). The temporal occurrence of the five most abundant taxa can be summarized as follows: Cyprinidae (except carp) 10 May - 30 August Catostomidae (except Ictiobinae) 17 May - 7 June Carp 10 May - 30 August Ictiobinae sp. 10 May - 7 June Percina sp. 26 April - 28 June

23 TABLE 3-2 DIEL DIFFERENCES IN LARVAL FISH DENSITIES DURING ICHTHYOPLANKTON COLLECTIONS IN THE KANKAKEE RIVER, 1988

Date (#/16Th') #orp 19 APR 0.01 0.00 26 APR 0.02 0.02 03 MAY 0.00 0.00 10 MAY 0.50 1.84 17 MAY 0.39 2.21 24 MAY 0.87 3.76 31 MAY 0.71 7.02 07 JUN 1.43 3.78 14 JUN 0.21 1.13 21 JUN 0.90 1.51 28 JUN 0.74 1.02 05 JUL 0.85 0.33 12 JUL 0.23 0.21 19 JUL 0.36 0.65 26 JUL 0.28 1.28 02 AUG 09 AUG 0.31 16 AUG 0.03 0.61 23 AUG 0.02 0.00 30 AUG 0.00 0.06 06 SEP 0.00 0.00 13 SEP 0.00 0.00 MEAN 0.38 1.27 * No samples collected due to low flows.

24 Figure 3-1.

Kankakee River Diel Density Differences 1001i '".. Day

-0- Night E 0

r.3 VI *10-

0

-J

0 .1 1 1 I 1 I I I I I I I I I I I I I I I I I I 5 3 7 5 9 6 APR MAY JUN JUL AUG SEP Sampling Date The long period during which Cyprinidae (minnows excluding carp) was in the drift was undoubtedly the result of this group being comprised of several species. The Illinois Natural History Survey (INHS) has collected 22 species of minnows (excluding carp and goldfish) in the vicinity of the study area from 1977 through 1988 (Larimore and Peterson 1989). Some of these species such as hornyhead chub and striped shiner may begin spawning as early as late April, while bullhead minnow and spotfin shiners are mid to late summer spawners (Smith 1979).

3.1.1.2 Horse Creek

Weekly ichthyoplankton collections from 19 April through 13 September 1988 from Horse Creek yielded 24 taxa representing 7 families (Table 3-3). A total of 7,087 larvae and 89 eggs were sorted from the 136 samples collected during the 22-week study. Due to insignificant flow rates, samples were not collected on 12 and 19 July; 2 and 16 August; and 13 September; therefore, only 77 percent of the scheduled samples could be collected during the study.

Fish eggs collected during 1988 ranged from 1.0 to 2.5 mm in diameter. Most eggs appeared to be viable and were typically in the early cleavage stage (Long and Bolland 1976). Eggs were present in the drift on only 5 of 17 collection dates, with 86.5 percent of them being collected on 31 May:

Density Date Number Percent No/10m3 Diameter Range (mm) 10 MAY 1 1.1 0.02 2.5 24 MAY 1 1.1 0.04 1.3

31 MAY 77 86.5 1.88 1.0-1.7 14 JUN 3 3.4 0.08 1.2-1.3 21 JUN 7 7.9 0.17 1.1-1.3

Total 89

The density of eggs on 31 May was 1.9/10m 3 compared to less than 0.2/10m,3 on the other dates. All eggs (except on 10 May) ranged in diameter from 1.0 to 1.7 mm, were damaged, and lacked oil globule(s). Prolarvae collected in the 2 weeks following the dates on which the eggs were collected were: cyprinids, Lepomis sp., Catastominae (probably Moxostoma sp.), brook silverside, and Etheostoma sp. By the process of elimination, the eggs collected on 31 May are most likely cyprinid eggs. Lepomis sp., brook silverside, and Etheostoma sp. are eliminated based on the lack of an oil globule; and the group Catastominae is eliminated based on their larger egg size: 2.5-3.5 mm (Snyder 1981).

26 Fish larvae collected in 1988 from Horse Creek were dominated by two taxa which accounted for nearly 90 percent of the total fish larvae drift: Catostomid D (73.2 percent) and unidentified cyprinids (15.0 percent). Other taxa which composed greater than one percent of the total catch included Etheostoma sp. (2.1 percent), Lepomis sp. (2.1 percent) and rock bass (1.2 percent). The other 21 taxa combined comprised only 6.2 percent of the total catch (Table 3-3).

The mean length of larvae measured in Horse Creek was 10.0 mm, and ranged from 3.0 to 21.0 mm. The mean length of larvae collected in Horse Creek was the highest among the four sites sampled. This was primarily due to the greater abundance of group D catostomids in Horse Creek, as they attain a much greater length than most other taxa before they drift. The mean lengths of Notropis sp., unidentified cyprinidae, Lepoirns sp., and Etheostoma sp. were also higher in Horse Creek than at the other three sites (i.e. Discharge, Intake, and the Kankakee River). Length data for selected taxa collected in Horse Creek 1988 are presented below:

Length (mm) Taxa No. MEAN MIN MAX

Carp 10 9.24 7.5 10.8 Notropis sp. 46 6.12 4.6 17.5 Unid Cyprinidae 397 7.37 3.0 11.8 Catostomid D 337 14.98 5.0 20.9 Ictiobinae 11 8.67 6.7 13.1 LeRomis sp. 150 6.97 4.6 21.0 Etheostoma sp. 148 7.68 4.7 17.5 Percina sp. 42 6.79 5.4 9.8

Larval fish were present on all sampling dates in Horse Creek. The mean density for the study was 10.76 larvae per 10M3, ranging from 0.03 to 124.95 larvae per 10m3. Mean larval densities (diel periods combined) were high (7.75-124.95 larvae per 10m3 ) from 24 May through 7 June. Before and after this period, densities typically ranged between 0.05 and 1.50 larvae per 10M3 . With the exception of 19 April and 5 July, night densities were consistently higher than day densities (Figure 3-2). Night densities ranged from 0 to 247.89 larvae per 10M3 and averaged 21.18 larvae per 1Om 3 ; whereas, day densities ranged from 0 to 2.05 larvae per 10m3 and averaged 0.34 larvae per 10m3 :

27 TABLE 3-3 TOTAL NUMBER AND PERCENT OF LARVAE COLLECTED IN HORSE CREEK, 1988

Species No. % Gizzard shad 1 0.01 Common carp 10 0.14 Hornyhead chub 29 0.41 Golden shiner 31 0.44 Spotfin shiner 3 0.04 Sand shiner 1 0.01 Unid Notropis 49 0.69 Suckermouth minnow 10 0.14 Bluntnose minnow 2 0.03 Fathead minnow 14 0.20 Unid Pimelvhales 1 0.40 Cyrinid N 28 0.40 U cyprinid 1066 15.04 Northern hog sucker 2 0.03 Catostomid D 5188 73.20 Unid Ictiobinae 11 0.16 Unid catostomid 16 0.23 Yellow bullhead 3 0.04 Channel catfish 9 0.13 Stonecat 1 0.01 Brook silverside 2 0.03 Rock bass 86 1.21 Unid Lepomis 149 2.10 Smallmouth bass 35 0.49 Rainbow darter 10 0.14 Fantail darter 1 0.01 Johnny darter 26 0.37 Rainbow/banded darter 98 1.38 Unid Etheostoma 150 2.12 Unid Percina 42 0.59 Unid percid 6 0.08 Unidentified 7 0.10 All species 7087 100.00

28 Figure 3-2.

Horse Creek Diel Density Differences l1 .'.."6Day

-0- Night 0

4-,

0.1 5 3 7 5 9 6 APR MAY JUN JUL AUG SEP Sampling Date DAY NIGHT #/10m 3 #/10m 3 DATE 19APR88 0.05 0.00 26APR88 0.00 0.16 03MAY88 0.00 1.60 10MAY88 0.04 2.19 17MAY88 0.53 2.48 24MAY88 0.64 77.09 31MAY88 2.05 247.89 07JUN88 0.26 15.22 14JUN88 0.10 4.79 21JUN88 1.21 4.10 28JUN88 0.26 1.24 05JUL88 0.58 0.39 26JUL88 0.00 0.81 09AUG88 0.10 1.70 23AUG88 0.00 0.22 30AUG88 0.00 0.05 06SEP88 0.00 0.08 Mean 0.34 21.18

The peak on 31 May (103.55 larvae per 10mi3) (Figure 3-2) was dominated by group D catostomids (probably redhorses). Two secondary peaks, on 21 June and 9 August, were comprised almost entirely of cyprinids and Lepomis sp. (Figure 3-2). The temporal occurrence of the five most common taxa can be summarized as follows:

Catostomidae (except Ictiobinae) 10 May - 21 June Cyprinidae (except carp) 10 May - 6 September Etheostoma sp. (all taxa) 3 May - 28 June Lepomnis sp. 7 June - 23 August Rock bass 31 May - 21 June

The peak density of all above-mentioned taxa except Lepomis sp. occurred on 31 May (week 7) (Appendix B). The long periods during which Lepomis sp. (sunfish) and particularly Cyprinidae (minnows) were in the drift was undoubtly the result of each of these taxa being comprised of several species; some of which are early spawners (e.g., hornyhead chub and striped shiner) and others being late spawners (e.g. bullhead minnow and spotfin shiner).

30 3.1.1.3 Intake

Weekly ichthyoplankton collections from 19 April through 13 September 1988 from the Intake yielded 31 taxa representing 9 families (Table 3-4). A total of 7,197 larvae and 271 eggs were sorted from the 264 samples collected during the 22-week study. The 264 samples analyzed represented 75 percent of the scheduled samples. Samples were missed due to low intake velocities (see Section 2.1.3) and dates when the Intake was decoupled due to low flows in the river (Table 1-1). More larvae, eggs, and taxa were present at the intake than at any other site.

Fish eggs collected at the intake ranged in size from 1.0 to 2.0 mm in diameter. Except for those collected on 26 April and 5 July, all eggs appeared to be viable. Eggs ranged in development from early cleavage stages to well-developed larvae still encased in the chorion (24 May). Eggs were present in collections on 10 of 18 sampling dates, with 62 percent being collected on 24 May:

Density Date Number Percent (No./10m 3 ) Diameter Range~mm) 26 APR 1 0.4 0.01 2.0 17 MAY 43 15.9 2.35 1.6 - 2.0 24 MAY 168 62.0 1.59 1.6 - 1.9 31 MAY 32 '11.8 0.27 1.1 - 1.9 7 JUN 15 5.5 0.09 1.3 - 1.7 14 JUN 2 0.7 0.01 1.1 21 JUN 6 2.2 0.06 1.1 - 1.5 28 JUN 1 0.4 0.01 1.0 5 JUL 1 0.4 0.01 1.6 19 JUL 2 0.7 0.01 1.1 - 1.2 TOTAL 271

The largest number of eggs was collected on 24 May, but the density of eggs was highest on 17 May (2.35 eggs per 10m3). Although at least three distinctly different eggs were collected, one type of egg was most abundant and comprised 89 percent of the total egg catch. This egg ranged in diameter from 1.6 to 2.0mm; it was opaque in early stages of development, lacked an oil globule, and was adhesive. This egg was present in collections from 17 May to 31 May but most were collected on 24 May. Most of these eggs collected on 24 May contained larvae that were fully developed and ready to hatch. Upon removal of a few larval specimens, it was determined that these were carp eggs. The other eggs appeared to belong to a darter sp. (a single egg), and two different types of eggs most likely from the cyprinidae family. Most of the eggs collected at the intake occurred 1-2 weeks before peak egg densities in Horse Creek. Also, given the adhesive nature of the most

31 TABLE 3-4 TOTAL NUMBER AND PERCENT OF LARVAE COLLECTED AT THE BRAIDWOOD INTAKE

Species No. % Unid gar 2 0.03 Gizzard shad 45 0.63 Common carp 1187 16.49 Hornyhead chub 34 0.47 Golden shiner 138 2.61 Rosyface shiner 2 0.03 Spotfin shiner 5 0.07 Sand shiner 2 0.03 Unid Notropis 765 10.63 Suckermouth minnow 23 0.32 Bluntnose minnow 4 0.06 Fathead minnow 130 1.81 Unid Pimephales 2 0.03 Cyprinid N 9 0.13 Unid cyprinid 1562 21.70 Unid Moxostoma 3 0.04 Catostomid D 908 12.62 Unid Ictiobinae 126 1.75 Unid catostomid 20 0.28 Yellow bullhead 7 0.10 Channel catfish 35 0.49 Stonecat 16 0.22 Blackstripe topminnow 1 0.01 Brook silverside 17 0.24 Rock bass 127 1.76 Unid Lepomis 547 7.60 Smallmouth bass 16 0.22 Unid Pomoxis 2 0.03 Unid centrarchid 2 0.03 Unid Ammocrypta 1 0.01 Rainbow darter 18 0.25 Fantail darter 1 0.01 Johnny darter 6 0.08 Rainbow/banded darter 21 0.29 Unid Etheostoma 265 3.68 Unid Percina 1001 13.91 Unid Stizostedion 2 0.03 Unid percid 46 0.64 Unidentified 49 0.68 All species 7197 100.00

32 abundant egg collected at the intake and the lack of eggs in the river drift during this period, it is likely that most of the eggs collected at the intake had been spawned in or very near the intake.

Larvae collected in the Intake during 1988 were dominated by unidentified cyprinids (21.7 percent), carp (16.5 percent), Percina sp. (13.9 percent), Catostomid D (12.6 percent) and Notropis sp. (10.6 percent) (Table 3-4). Other common taxa (greater than 1.0 percent) included Lepomis sp. (7.6 percent), Etheostoma sp. (3.7 percent), golden shiner (2.6 percent), rock bass (1.8 percent), and Ictiobinae sp. (1.8 percent). A single 15.5 mm specimen of Ammocrypta sp. was collected on 5 July. This is a new record for the Kankakee River in Illinois (Smith 1979; Dr. Larry Page - personal communication) and is on the Illinois list of endangered species. This specimen was verified by Dr. David Etnier of the University of Tennessee and Mr. Thomas Simon of the Large Rivers Larval Research Station and has subsequently been deposited at the Illinois Natural History Museum. Due to the specimen's small size and lack of literature on larval Ammocrypta it could not be identified to species. Other species collected only at the Intake included Stizostedeon sp. (walleye or sauger), and Lepisosteus sp. (unidentified gar), and blackstripe topminnow.

The mean length of larvae measured at the Intake was 7.5 mm, and ranged from 3.4 to 19.9 mm. Length data indicate that Catostomid D and Ictiobinae specimens were larger than other taxa commonly collected at the Intake:

Length -(mm) Taxa No. MEAN MIN MAX

Carp 768 6.79 4.4 12.4 Notropis sp. 776 5.84 4.2 12.4 Unid Cyprinidae 1255 6.33 3.4 12.1 Catostomid D 559 14.94 9.8 19.9 Ictiobinae 125 9.34 6.3 16.7 Lepomis sp. 542 5.89 3.9 15.7 Etheostoma sp. 267 6.15 4.7 15.5 Percina sp. 965 6.99 4.8 16.5

Mean lengths for the other common taxa ranged from 5.84 mm (Notropis sp.) to 6.99 mm (Percina sp.). The mean lengths of Ictiobinae and Percina sp. were larger at the Intake than in Horse Creek or in the Kankakee River.

The mean of all measured larvae at the Intake was distinctly smaller (7.55 mm) than for Horse Creek (10.01 mm) and slightly smaller than in the Kankakee River (8.34 mm). Mean

33 lengths were more similar between the Intake and the Kankakee River than between the Intake and Horse Creek, suggesting that the composition of the Intake was influenced more by larvae drifting in the Kankakee River than by those produced in Horse Creek.

Of the 31 taxa collected at the Intake, 24 were common beiween the Intake and Horse Creek, and 21 were common between the Intake and the Kankakee River. The species composition at the Intake appears to be a combination of Horse Creek and Kankakee River taxa. In addition to the four taxa that were unique to the Intake, several taxa were present at only two of the three locations:

Taxa Intake Kankakee R. Horse Creek

Rosyface shiner X x Spotfin shiner X x Sand shiner X x Suckermouth minnow X x Pimphales sp. X x Bluntnose minnow X x Yellow bullhead X x Brook silverside X x Pomoxis sp. X x Fantail darter X x

For some of the less abundant taxa, it appears that species composition at the intake is a combination of taxa from both Horse Creek and the Kankakee River. However, a comparison of common taxa shows that the number and percent abundance of these taxa are more similar between the Intake and the Kankakee River than between the Intake and Horse Creek:

Kankakee R. Intake Horse Creek T~ax No. % No. % Catostomid D 538 20.8 908 12.6 5188 73.2 Cyprinidae 287 11.1 1562 21.7 1066 15.0 Carp 466 18.0 1187 16.5 10 0.1 Notropis sp. 299 11.5 765 10.6 49 0.7 Ictiobinae sp. 301 11.6 126 1.8 11 0.2 Percina sp. 173 6.7 1001 13.9 42 0.6 Etheostoma sp. 78 3.0 265 3.7 150 2.1 Lepomis sp. 148 5.7 547 7.6 149 2.1 Rock bass 41 1.6 127 1.8 86 1.2

34 Catostomids dominated the Horse Creek drift and were the second most abundant taxa collected in the Kankakee River and the third most abundant taxa at the Intake. Conversely, Cyprinidae dominated the Kankakee River and Intake drift while catostomids ranked second or third. Carp was the second most abundant taxa at the intake; it was also common in the river, but rare in Horse Creek. The percent composition of these three major taxa and of Lepomis sp., and Percina sp. are more similar between the Kankakee River and the Intake than between the Intake and Horse Creek. The percent composition of Etheostoma sp. and rock bass were similar among all three sites, whereas, Ictiobinae larvae were noticeably more prevalent in the river than at either of the other two sites. The greater raw numbers of cyprinids, carp, Percina sp. and Lepomis sp. at the Intake may suggest that these taxa spawn in the vicinity of the intake.

Larval fish were present on all sampling dates at the Intake. The mean density (diel periods combined) for the study was 3.66 larvae per 1Om 3, ranging from 0.01 to 16.50 larvae per 10m3 . On all sampling dates, night densities were higher than day densities (Figure 3-3). Night densities ranged from 0.02 to 36.10 larvae per 1Om 3 and averaged 6.52 larvae per 10m3 . Day densities ranged from 0 to 2.61 larvae per 10M3 and averaged 0.79 larvae per 10m3 (Table 3-5). Peak mean density (diel periods combined) for the Intake study occurred on 24 May (16.50 larvae/10m3 ). This peak was attributable to carp (7.6 larvae/lOim 3 , cyprinids (4.7 larvae/lOm 3), Percina sp. (2.8 larvae/lOin 3), and catostomids (2.2 larvae/10mi) (Appendix B). Smaller peaks occurred on 19 July and 23 August. The peak on 19 July was composed of Lepomis sp. and unidentified cyprinids and the peak on 23 August was comprised exclusively of cyprinids.

The temporal occurrence of the five most abundant taxa can be summarized as follows:

Cyprinidae (except carp) 10 May - 6 September Carp 17 May - 30 August Percina sp. 19 April - 21 June Catostomidae (except Ictiobinae) 10 May - 7 June Lepomis sp. 31 May - 30 August

3.1.1.4 Discharge

Weekly ichthyoplankton collections from 19 April through 28 June from the discharge canal yielded 15 taxa representing 9 families (Table 3-6). A total of 631 larvae and 182 eggs were found in the 52 samples collected during the 13-week study.

Fish eggs collected during 1988 ranged from 0.8 to 2.3 mm in diameter. All eggs appeared to be viable and were in the early cleavage stages of development (Long and Ballard 1976).

35 TABLE 3-5 DIEL DIFFERENCES IN LARVAL FISH DENSITIES DURING ICHTHYOPLANKTON COLLECTIONS AT THE BRAIDWOOD INTAKE, 1988

Day Night Date (#11 0mi3) 19 APR 0.35 0.48 26 APR 0.25 0.47 03 MAY 0.56 3.35 10 MAY 0.64 ..6.09 17 MAY 1.01 10.09 24 MAY 0.87 36.10 31 MAY 2.61 23.13 07 JUN 1.06 6.78 14 JUN 0.87 2.84 21 JUN 1.01 6.22 28 JUN 2.49 5.03 05 JUL 1.17 4.80 12 JUL 19 JUL 1.17 9.54 26 JUL 09 AUG 02 AUG 16 AUG 0.06 1.07 23 AUG 0.04 0.79 30 AUG 0.03 0.16 06 SEP 0.00 0.46 13 SEP 0.00 0.02 MEAN 0.79 6.52 *Pumps not operating because plant decoupled due to low river flows.

36 Figure 3-3.

Braidwood Intake Diel Density Differences 100 '"." Day

-,0- Night 0

10 z

w.4 0 -I

If'sq

0.11- I I I I I I I I I I I I I I I I I I I I I 5 3 7 5 9 6 AP R MAY JUN JUL AUG SEP Sampling Date TABLE 3-6 TOTAL NUMBER AND PERCENT OF LARVAE COLLECTED AT THE BRAIDWOOD DISCHARGE, 1988

Species No. % Gizzard shad 247 39.14 Common carp 13 2.06 Unid cyprinid 2 0.32 Catostomid D 5 0.79 Unid Ictiobinae 1 0.16 Unid catostomid 3 0.48 Unid ictalurid 2 0.32 Brook silverside 1 0.16 Unid Morone 3 0.48 Unid Lepomis 13 2.06 Smallmouth bass 1 0.16 White crappie 1 0.16 Unid Pomoxis 209 33.12 Unid Centrarchid 1 0.16 Unid Etheostoma 2 0.32 Unid Percina 11 1.74 Unid percid 7 1.11 Freshwater drum 62 9.83 Unidentified 47 7.45 All species 631 100.00

38 Eggs were present in the drift on only 5 of the 11 sampling dates, with 74.2 percent being collected on 31 May:

Density Date Number Percent (No./10m3 ) Diameter Range (mnm)

17 MAY 14 7.7 0.75 1.4 - 1.6 24 MAY 24 13.2 1.80 0.8 - 2.3 31 MAY 135 74.2 5.60 0.8 - 1.8 07 JUN 6 3.3 0.30 1.2-1.3 28 JUN 3 1.6 0.45 1.5

The density of eggs was highest on 31 May (5.6 eggs per 10 Mi3 ). Although four distinctly different eggs were collected; one type of egg was most abundant and comprised 90 percent of the total egg catch. This egg ranged in diameter from 1.3 to 1.6 mm; it was opaque and contained an orangish spot (probably an oil globule). Based on these characteristics and the type and percent of larvae collected; this egg probably is from a centrarchid. The other eggs appeared to belong to gizzard shad, freshwater drum, and the cyprinidae family.

The composition of larvae at the discharge was unlike that from the other locations. Larvae collected in the discharge during 1988 were dominated by gizzard shad (39.1 percent), Pomoxis sp. (33.1 percent), freshWater drum (9.5 percent) and unidentified larvae (7.5 percent) (Table 3-6). The large percent of unidentified larvae (7.45 percent) was due to specimens that were damaged prior to collection. The relative abundance of unidentified larvae at the other three sites ranged from 0.1 to 1.3 percent of the total catch. Other common taxa (greater than 1 percent) included carp (2.1 percent), Lepomis sp. (2.1 percent), Percina sp. (1.7 percent), Catostomidae (1.3 percent), and yellow perch (1.1 percent) (Table 3-6). Freshwater drum and white bass were collected exclusively from the discharge canal. Gizzard shad and Pomoxis sp. were much less abundant at the other three sites comprising 0 to 0.6 percent of the total catch at the other locations.

The mean length of larvae measured in the Discharge was 7.11 mm, and ranged from 3.4 to 20.0 mm. Length data indicate that gizzard shad and carp specimens were larger than other taxa commonly collected at the Discharge:

39 Length (mm) Taxa• No. MEAN MIN MAX

Gizzard shad 232 7.2 3.8 20.0 Pomoxis sp. 206 4.9 4.1 12.8 Freshwater drum 59 4.5 3.8 16.0 Carp 13 6.8 6.2 7.3 Lepomis sp. 13 5.6 5.0 6.2

The mean length for Lepomis sp. specimens at the Discharge was smaller than at the other three sampling sites (i.e. Kankakee River, Horse Creek, and Intake). The mean length of carp larvae was intermediate to values observed at the other sites. Not enough gizzard shad, Pomoxis sp., or freshwater drum larvae were collected at the other sites to make meaningful comparisons.

Larval fish were present on all sampling dates in the discharge. The mean density (diel periods combined) for the study was 2.65 larvae per 10m3g ranging from 0.05 to 11.05 larvae per 1Dm3 (Figure 3-4). Mean larval densities were highest •10.15 -11.05 larvae per 10m 3) on 17 and 24 May; intermediate (2.8 to 2.9 larvae per 10m ) on 10 and 31 May; and less than 0.50 larvae per 10m 3 on all other dates (Appendix B). From 10 May through 31 May when total mean densities ranged from 2.8 to 11.05 larvae per 1Dm 3; gizzard shad and Poxomis sp. accounted for greater Ihan 70 percent of the larvae (Figure 3-5). For the first six weeks of the discharge study, day densities were higher than night densities, whereas for the last seven weeks of the study night densities were higher than day densities (Figure 3-4). Day densities ranged from 0 to 6.71 larvae per 1Dm 3 and averaged 1.53 larvae per 1m. Night densities ranged from 0 to 15.36 larvae and averaged 2.98 larvae per 1Dm

DAY NIGHT #/10m 3 #/l0m3 DATE 05APR88 0.00 0.00 12APR88 0.00 0.00 19APR88 0.60 0.00 26APR88 0.59 0.26 03MAY88 0.00 0.10 10MAY88 2.94 2.67 17MAY88 6.92 13.33 24MAY88 6.71 15.36 31MAY88 0.94 4.80 07JUN88 0.77 1.05 14JUN88 0.20 0.60

40 I

Fiqure 3-4.

Braidwood Discharge Diel Density Differences

,,,', Day

-*0- Night E 0

(0)

I

0.1 5 3 7 5 9 6

APR MAY JUN .J11L AU Sw_ EP Sampling Date 4I ,

Total Density 23- Gizzard Shad and Pomoxs sp...... Gizzard Shad Only

22-

21-

20-

19-

18-

91- 17- E 0 0 164

Co z 15- 0/) C- 6

I

APR MAY JUN

Figure 3-5. Comparison of densities between total catch and the catch of dominant taxa collected at the discharge, 1968.

42 21JLUN88 0.17 0.19 28JUN88 0.08 0.34

MEAN 1.53 2.98

Overall the mean density during the night was about double what it was during the day.

The temporal occurrence of the three most common taxa can be summarized as follows:

Gizzard shad 10 May - 14 June Pomoxis sp. 10 May - 31 May Freshwater drum 17 May - 7 June

Gizzard shad, Poxomis sp. and freshwater drum all had peak densities on 24 May.

3.1.1.5 Survival Studies

Intake

The Intake survival studies were conducted in the one acre holding pond to which the river water is pumped before it spills into the cooling pond. These studies occurred during the day on 1 June and during the night on 7 June and 5 July. The net was positioned and/or allowed to move with the current so the velocities were typically maintained at < 0.5 fl/sec. Mean calculated collection velocities ranged from 0.39 to 0.55 ft/sec. Total sample volumes collected for each study ranged from 125.1 to 144.1 m3 :

Number of Mean Total Two Minute Date Velocity (ft/sec) Volume (m3) Replicates

1 June 0.51 144.1 10 7 June 0.55 125.1 8 5 July 0.39 132.3 12

Eight to twelve two minute replicate samples were collected to insure that a minimum of 10Om 3 of water was filtered for each study.

Ichthyoplankton representing 10 taxa were collected during the Intake entrainment survival studies (Table 3-7). Cyprinidae (77.0 percent), Lepomis sp. (6.8 percent), and unidentifiable

43 TABLE 3-7 TOTAL NUMBER AND SURVIVAL PROPORTIONS OF EACH TAXA AND LIFE STAGE COLLECTED DURING THREE INTAKE ENTRINAMENT SURVIVAL STUDIES AT THE BRAIDWOOD GENERATING STATION, 1988 I Total Percent Survival Tara Prolarvae Postlarvae Juvenile Number collected of Total Proportion

Cyprinidae 11 136 147 77.0 0.60 Hornyhead chub 1 1 0.5 Striped shiner 1 1 0.5 1.00 Catostomidae 3 3 1.6 Yellow bullhead 2. 2 1.0 1.00 Rock bass 1 1 0.5 1.00 Lepomis sp. 10 13 6.8 0.78 41 Etheostoma sp. 2 1 3 1.6 1.00 Johnny darter 2 2 1.0 1.00 Percina sp. 3 1 6 3.1 0.75 Unidentified 12 6.3

Total 16 157 6 191

Survival Proportion 0.83 0.62 1.00 0.68

I (damaged) larvae (6.3 percent) were the most commonly encountered taxa. Post-larvae was the dominate life stage accounting for 82.2 percent of the total catch. Two-thirds of the larvae collected in the three studies were classified as dead-opaque (Table 3-8) and therefore considered dead before passage. With the exception of post-larval cyprinids, sample sizes for all other taxa and life stages were too small for detailed analyses, but are presented to give some indication of survival potential.

Only 13 larvae representing four taxa were collected during the first study on 1 June (Table 3-8). Eight of the 13 larvae were dead opaque leaving 5 specimens for determining survival proportions. The survival proportions for cyprinidae (based on 2 specimens) and Percina sp. (based on 3 specimens) were 0.50 and 0.67, respectively. The overall survival proportion on 1 June was 0.60 (Table 3-8). Prolarvae and postlarvae were present in each life condition category.

The second study at night on 7 June, yielded 147 larvae representing 9 taxa (Table 3-8). Dead opaque was again the most common life condition encountered, comprising 69 percent of the specimens. Cyprinidae and Lepomis sp. were the two most common taxa and survived entrainment at rates of 0.55 and 0.75, respectively. Striped shiner, rock bass, Etheostoma sp., johnny darter, and Percina sp. exhibited no mortality (survival proportions = 1.00) but they were represented in the study by only five or fewer specimens so estimates for these taxa are tenuous. Postlarvae dominated (73-94 percent) each of the life condition categories:

Percent Composition

Life Condition Prolarvae Postlarvae Juveniles live 20 73 7 Dead transparent 6 94 - Dead Opaque 3 88 2

Survival rates for prolarvae, postlarvae, and juveniles on 7 June were 0.86, 0.59, and 1.00, respectively.

The final study was conducted at night on 5 July. Thirty larvae were collected representing three taxa (Table 3-8). Sixty-three percent of the larvae collected were dead before entrainment. Of the remaining 11 larvae; 2 juvenile yellow bullhead, 7 cyprinidae (4 postlarvae and 3 prolarvae), and 1 postlarval Leepomis sp. were collected alive. Survival proportions for the aforementioned taxa were: yellow bullhead - 1.00; cyprinidae - 0.78, and Lepomis sp. - 1.00. This yielded a survival rate of 0.82 for 5 July.

45 TABLE 3-8 TOTAL NUMBER AND SURVIVAL PROPORTIONS OF EACH TAXA AND LIFE CONDITION COLLECTED DURING ENTRAINMENT SURVIVAL STUDIES ON I JUNE, 7 J1UNE, AND 5 JULY 1988

Life Condition Total Survival(d) TaxaDat L(a) pT(b) DO(-) Number Proportion

1 June - (Day) Cyprinidae 1 1 4 6 0.50 Catostomidae 2 2 Ethestoma sp. 2 2 Percina sp. 2 1 3 0.67 Total 3 2 8 13 0.60

7 June - (Night) Cyprinidae 17 14 79 110 0.55 -1 Hornyhead chub 1 Striped shiner 1 1 1.00 Catostomidae -1 1 Rock bass 1 17 1.00 Lepomis sp. 6 2 9 0.75 Etheostoma sp. 3 1 4 1.00 Johnny darter 1 -1 2 1.00 Percina sp. 1 2 3 1.00 Unidentified - 7 7 Total 30 16 101 147 0.65

5 July - (Night) Cyrpinidae 7 2 13 22 0.78 Yellow bullhead 7 2 1.00 L&poQmis sp. 1 -1 2 1.00 Unidentifieid - 5 5 Total 9 2 19 30 0.82

Grand Total 43 20 128 191 0.68 Percent 22.5 10.5 67.0 a) Live b) Dead-Transparent c) Dead-Opaque d) Number of live larvae divided by the number of live plus dead - transparent larvae.

46 For the three studies combined, 68 percent of larvae survived passage from the river screenhouse to the one acre holding pond (Table 3-8). Survival rates were less than 1.00 for cyprinidae (0.60), Lepomis sp. (0.78), and Percina sp. (0.75). The other taxa did not exhibit entrainment mortality. All specimens of catostomidae and hornyhead chub were collected dead before entrainment so no survival proportion could be estimated for these taxa. Differences in survival rates among life stage was also observed. Post-larvae exhibited the lowest survival rate of 0:62, prolarvae survival was higher at 0.83, whereas no mortality was observed among the few juveniles collected (Table 3-7).

Discharge

The Discharge survival studies were conducted immediately downstream of the outfall structure in the discharge canal. Studies were conducted during daylight on 1, 7, and 21 June 1988. Due to the rocky, uneven substrate of the discharge canal, the net was kept stationary during all collections. Mean collection velocities for the three studies ranged from 0.40 to 0.63 ft/sec:

Number of Total Collection Total two minute Date Velocity (ftlsec) Volume (m3 ) Replicates 1 June A.63 137.1 11 7 June 0.40 109.7 13 21 June 0.40 113.0 14

Total sample volumes for the study ranged from 109.7 to 137.1m 3 . Eleven to fourteen replicate two minute samples were collected during each study to insure that a minimum of 1oom 3 was filtered. The mean collection velocity on 1 June was slightly higher than the maximum (ie., 0.5 ft/sec) desired. Upon completion of eight replicates on 1 June, it was determined that 7 of the 10 larvae collected were dead opaque. An additional three samples were collected at velocities <0.5 ft/sec; these additional samples produced only 3 dead opaque. Due to the low density of larvae and the dominance of dead opaque larvae, the study was considered valid and sampling was terminated (Dr. Richard Monzingo, personal communication). Total number of larvae collected was insignificant for two of the three studies:

Total Number 1 June 13 7 June 89 21 June 1

47 Since only 1 larvae was collected during the 21 June study and 77 percent (10 of 13) of the larvae collected during the 1 June study were dead before entrainment (dead opaque), all dates were combined for analysis. Collectively, the three Discharge studies yielded 103 fish larvae representing 5 taxa. As with the number of taxa collected, life stage representation was also sparse:

Not Percent Prolarvae Postlarvae Juvenile Determined Total of Total Gizzard shad 9 1 - 10 9.7 Carp 1 - 1 1.0 Lepomis sp. 79 - 79 76.7 Pomoxis sp. 3 1 - 4 3.9 Freshwater drum 1 - 1 1.0 Unidentified 1 2 5 8 7.8 Total 2 93 5 103

Postlarval LeRomis sp. (76.7 percent), gizzard shad (9.7 percent), and unidentifiable (damaged) larvae (7.8 percent) were the dominant taxa collected.

"Live" was the most frequently encountered life condition during the Discharge survival studies due to the good survivability of entrained postlarval Lepomis sp:

Dead Dead Survival Taxa Live Transparent Opaque Proportion Gizzard shad 3 7 0.00 Carp 1 Lepomis sp. 60 15 4 0.80 Poxomis sp. 1 2 1 0.33 Freshwater drum 1 Unidentifiable 8 Total 20 22 0.75

The survival proportion for Lepomis sp. was 0.80. Pomoxis sp. survived at a rate of 0.33, while none of the gizzard survived. All other taxa collected were dead before entrainment. The overall survival rate at the Discharge was (0.75).

3.1.1.6 Statistical Comparisons

One and two way ANOVA's based on log transformed data were used to compare egg and larvae densities at each of the four study areas; Horse Creek, Kankakee River, the Braidwood Intake, and the Braidwood Discharge. As discussed below, diel differences were

HS significant at each study area but other variables (i.e., depth and location) were not significant.

Horse Creek and the Discharge

Because Horse Creek and the Discharge were each sampled at only one location and one depth, the only comparison that could be made was between night and day densities. In Horse Creek, the difference between day and night densities was significant for both larvae and total ichthyoplankton (i.e., eggs plus larvae):

Mean Density (No./10m 3) Night Day Pr* Pt* Larvae 21.18 0.34 .0007 .0001 Total IP 21.40 0.38 .0007 .0001

*Pr - Probability based on raw data Pt - Probability based on log transformed data

The magnitude of the difference between day and night densities was greater in Horse Creek than at any of the other study locations.

In contrast to the situation in Horse Creek, the difference between day and night densities at the Braidwood discharge was the smallest among the four study areas: 3 Mean Density (No./10m ) Day Nih Pr Pt Larvae 1.53 2.98 .007 .026 Total IP 1.64 4.07 .003 .011

Although diel differences were less pronounced at the discharge, the difference was significant both for larvae (P = .026) and for total IP (P=.011).

Intake

Comparisons at the intake were night vs. day, location (upstream vs. downstream bay), and depth (surface vs. bottom). The diel comparisons showed that time of collection was a significant factor affecting larval density:

49 Mean Density (No./10m 3) Day Pr Pt Larvae 0.83 6.87 .0001 .0001 Total IP 1.07 6.94 .0001 .0001

Conversely, neither the location of sampling nor the depth of sampling was a significant variable:

Mean Density (No/10m3 ) Surface Bottom Pr Pt Larvae 3.07 3.68 .459 .379 Total IP 3.23 3.81 .467 .445 Upstream Downstream Pr* Pt* Larvae 5.17 3.46 .137 .091 Total IP 5.26 3.63 .145 .084

Kankakee River

The situation in the Kankakee River paralleled that in the intake. That is, time of collection in the river was a significant factor affecting larval density, whereas neither location along the transect nor depth were important variables. The diel comparisons can be summarized as follows:

Mean Density (No/I0nm3) Day ih Pr Pt Larvae (19 Apr. - 28 June, all locations and depths combined) 0.50 2.01 .0001 .0001 (19 Apr. - 13 Sept, Loc K2 Surface) 0.23 1.26 .0006 .0001 (19 Apr. - 13 Sept, Loc K3 Surface) 0.27 1.19 .0026 .0006 Total IFP (19 Apr. - 28 June, all locations and depths combined) 0.50 2.01 .0001 .0001 (19 Apr. - 13 Sept., Loc K2 Surface) 0.35 1.26 .0051 .0008 (19 Apr. - 13 Sept., Loc K(3 Surface) 0.27 1.19 .0026 .0006

50 During the period 19 April through 28 June samples could be collected at all points and depths along the transect. During this period the density of larvae was four times higher at night than during the day. For the entire study period (i.e., 19 April through 13 September), diel comparisons were restricted to surface samples collected at Locations K2 and K3. At these locations, densities were 4-5 times higher at night than during the day (see above).

Because Location K4 was sampled infrequently due to lack of depth and current speed, statistical comparisons among the locations were largely restricted to Locations K1, K2, and K3, except that surface densities for all locations were compared for the period 19 April through 13 September. The various location comparisons are summarized in Table 3-9.

These comparisons show that larvae and IP were homogeneously distributed across the breadth of the Kankakee River from the beginning of the study through June. Lack of depth and low current speeds prohibited statistical analysis according to location during July and August.

Depth comparisons were also limited because of the shallow water that prevailed throughout the study. Depth was considered at Locations K1-K3 for the period 19 April through 14 June and at Locations K2 and K3 for the period 19 April - 28 June and 16 and 23 August, respectively. These comparisons can be summarized as follows:

Mean Density (No/lOm 3 ) Surface Bottom Pr* Pt* 19 April through 14 June; Larvae 1.21 1.32 .647 .167 Locations K1-K3 Total IP 1.21 1.32 .656 .175

19 April through 28 June; Larvae 0.95 1.10 .480 .089 and 16 and 23 August; Total IP 0.95 1.10 .486 .092 Locations K2 & K3

As shown above, mean densities at the surface and at the bottom differ by only about 0.1 larvae/10m3; a non-significant difference. Therefore, we conclude that larvae and total IP were uniformly distributed in the water column during 1988.

3.1.1.7 Dye Studies

The low flow study (riverflow=1650 cfs) conducted when the intake pumps were not operating revealed that the dye plume divided at the riffle just outside of the mouth of Horse Creek. A small part of the plume went through the narrow chute near shore after which it slowly moved through the slackwater area towards the intake. However, most of the dye went around the riffle where it "hugged" the outside of it (Figure 3-6b). After the plume

51 TABLE 3-9 STATISTICAL COMPARISONS OF LARVAL AND ICHTHYOPLANKTON DENSITIES AMONG FOUR LOCATIONS ON THE KANKAKEE RIVER

Period/Depth/Location Mean Density (No/lOre3) Probability

K1 K2 K3 K4 Pr Pt 19 Apr - 14 June (Surface Larvae 1.24 1.32 1.08 1.70 .571 .621 samples only; all locations) Total IP 1.24 1.33 1.08 1.70 .573 .625

19 Apr - 28 June (Surface Larvae 1.33 1.22 0.99 .638 .721 samples only; Locations Total IP 1.35 1.24 0.99 .611 .690 KI-K3)

19 Apr - 14 June (Depths Larvae 1.29 1.44 1.07 .434 .524 and Diel periods combined; Total IP 1.30 1.44 1.07 .423 .508 Locations K1-K3)

19 April - 28 June (Depths Larvae - 1.35 1.00 .119 .218 and Diel periods combined; Total IT - 1.36 1.00 .115 .208 Locations K2 & K3 only)

19 April - 14 June (Bottom Larvae 1.35 1.56 1.05 .452 .381 samples only; Locations Total IP 1.35 1.56 1.05 .447 .376 KI-K3)

52 TABLE 3-10 WEEKLY ESTIMATES OF FISH EGGS AND LARVAE DRIFT IN HORSE CREEK, 1988. Week of Day Night Combined Date Eggs Larvae Eggs Larvae Egg Larvae. 19 April 0 2,646 0 0 0 2,646 26 0 0 1,575 5,033 1,575 5,033 3 May 0 0 0 38,759 0 38,759 10 0 1,722 721 52,885 721 54,607 17 0 16,877 0 42,525 0 59,402 24 0 23,471 1,372 1,508,577 1,372 1,532,048 31 10,514 37,156 28,819 2,253,545 39,333 2,290,701 7 June 0 3,178 0 89,943 0 93,121 14 0 693 504 16,037 504 16,730 21 0 4,942 448 8,043 448 12,985 28 0 637 0 1,463 0 2,100 5 July 0 1,645 546 0 2,191 12 S546) 1,197) 1,197)2o1 19 S0) 26 ~0) ~0 1,197 1,197 2 August (382) (4,403) ý0) (4,785) 9 73 7,609 8,372 16 •382) (4,277) (0) (4,659) 23 0 945 0 945 30 0 0 0 175 0 175 6 September 0 0 168 0 168 13 (0) (0) (0) (0) (0) (0) Total 10,514 96,139 33,439 4,037,873 43,953 4,134,012 * Values in parenthesis were derived using densities from the week preceding and/or following the week indicated.

53 b) Pumps Not Operating

Intake

Route 113 .i"

Figure 3-6. Flow of dye from Horse Creek to the Braidwood Station Intake structure. 54 reached the downstream, outer edge of the riffle, it flowed back towards the Intake. The dye did not flow outward and mix with Kankakee River along the right (north) shore (Figure 3-6b). During the low flow study (river flow = 1250 cfs) when the riffle was completely exposed and the intake pumps were operating, the dye again "hugged" the outside of the riffle where it was confined to a narrow band approximately 10 meters wide. When the plume reached the outer edge of the riffle, it flowed around the riffle spreading throughout the slack water area with all the dye eventually being drawn into the upstream intake bay. No dye flowed downstream of the intake bay (Figure 3-6a). It appears that when the riffle is present Horse Creek water is directed towards the intake, regardless of whether or not the intake pumps are operating.

3.1.1.8 Extrapolated Values For Ichthyoplankton

In order to determine what, if any, impact operation of the Braidwood Station might have on ichthyoplankton populations in the Kankakee River it is necessary to estimate the total number of IP entrained by the plant and compare that with the total number in the drift in the river. Estimates of the number of larvae coming out of the cooling lake and from Horse Creek are also useful as they provide an indication of the contribution each of these areas makes to the drift in the river. For all four areas (i.e., Intake, Discharge, Horse Creek, and Kankakee River), the number of eggs, larvae, and total IP was estimated based on multiplying an appropriate mean density times the volume of water passing through that area in one week. The seasonal (i.e., April - September) estimate was the sum of the weekly estimates. Flow volumes for the Intake and Discharge were based on plant operating data supplied by CeCo. Flow volumes for Horse Creek were based on extrapolations of the flow rates we measured each week in Horse Creek. Flow volumes for the Kankakee River were based on data provided by USGS for their gage at Wilmington. Mean density for each area was the mean of all replicates for each day and night period. Separation of day and night data was necessary because the statistical analysis discussed previously showed that density was significantly affected by the time of collection. For each area, the 24-hour estimate was obtained by multiplying the mean density for all the samples collected during the day times the amount of daylight (defined here as 0.5h before sunrise to 0.5h after sunset) on that date and adding that value to the product of the nighttime density times the amount of time it was dark. For example, on 24 May the values for the parameters of interest in Horse Creek were as follows: Stream flow = 0.93 m3/sec Mean daytime larva] density = 0.64/10m3 3 Mean nighttime larval density = 77.09/lOm Amount of daylight = 56,340 sec Amount of darkness = 30,060 sec

55 Based on these values, the total number larvae drifting past that point of Horse Creek on that day would be:

Day 0.93 m3/sec x 56,340 sec x 0.64 larvae/10m 3 = 3,353 larvae Night 0.93 m3/sec x 30,060 sec x 77.09 larvae/10m 3 215,511 larvae Total = 218,864

The number of eggs in the drift on that date would be calculated in a similar fashion, and total IP would be the sum of the eggs and the larvae. The weekly estimate would be the daily estimate times seven.

At the Intake and in the Kankakee River, the day and night density was the mean of all samples collected during each time period regardless of location or depth. This was done because the statistical analysis (Section 3.1.1.6) showed that neither depth or location affected larval or IP densities, hence it is acceptable to treat all samples in a given time period as replicates.

Horse Creek

Using the procedures described above, we estimate that the Horse Creek drift contained 4,134,012 larvae and 43,953 eggs during the period 19 April to 13 September (Table 3-10). Ninety eight percent of the drifting larvae were collected during the night and 92 percent of the larvae were present during a two week period in late May. Of the larvae present during this two week period, 81 percent were catostomids. The total ichthyoplankton drifting in Horse Creek in 1988 was 10.8 percent of the number drifting in the Kankakee River (Table 3-11).

Kankakee River

We estimate that 37,697,167 larvae and 817,320 eggs were present in the drift from 19 April to 13 September (Table 3-12). Sixty-nine percent of the larvae were collected during the night and 83 percent of the drift occurred in May. Weekly larval drift rates during the 4- week period 10 May - 7 June ranged from 4 to almost 10 million larvae per week.

Intake

Two estimates of entrainment were calculated for the Intake, actual and worst case. The actual case estimate was based on the volume actually pumped during each week of the study, while the worst case estimate was based on pumping 24 hours a day, 7 days a week at the maximum pumping rate (50,000 gpm) (J. Tidmore 1989, CeCo, personal communication) Both calculations used the same die] densities for a given week and both

56 TABLE 3-11 ESTIMATES OF WEEKLY ICHTHYOPLANKTON ABUNDANCE AT FOUR SITES NEAR THE BRAIDWOOD STATION, 1988.

Week Of Kankakee River Horse Creek Intake Discharge 5 April -(a) 0 12 0 19 60,032 2,646 18,488 19,485 26 147,329 6,608 11,648 25,305 3 May 0 38,759 58,437 1,951 10 5,737,368 55,328 224,784 147,520 17 4,416,230 59,402 948,305 523,000 24 6,726,216 1,533,420 1,943,198 597,197 31 9,521,575 3,430,034 1,600,230 314,135 7 June 4,997,881 93,121 264,602 58,354 14 776,734 17,234 178,602 18,510 21 1,532,069 13,433 431,316 7,271 28 759,087 2,100 185,016 7,791 5 July 624,050 2,191 170,870 12 149,919 (102,910) 19 1,056,076 2,191)(b)1,197 282,827 26 (782,145) 1,197 *(c) 2 August +(d) (4,785) 9 (977,939) 8,372 16 219,058 (4,659) 31,800 23 10,549 945 17,594 30 20,230 175 15,255 6 September 0 168 35,577 13 0 (0) 950 Total 38,514,487 4,177,965 6,522,674 1,720,519 (a) Studies at the Kankakee River, Horse Creek, and the Intake did not begin until the week of 19 April. The study at the discharge ended on 28 June. (b) Values in parenthesis were derived using densities from the week preceeding and/or following the week indicated. ýc) Asterisk indicates that plant decoupled; no pumping took place. d) + Indicates that sampling was not conducted this week; estimates for the preceeding and following week were increased to account for the week that was missed.

57 TABLE 3-12 WEEKLY ESTIMATES OF FISH EGGS AND LARVAE DRIFT IN THE KANKAKEE RIVER, 1988.

Week of Day Night Combined Date___e Larvae Ens Larvae Egg Larvae 19 April 0 60,032 0 0 0 60,032 26 0 90,958 0 56,371 0 147,329 3 May 0 0 0 0 0 0 10 0 1,870,372 0 3,866,996 0 5,737,368 17 0 1,090,082 0 3,326,148 0 4,416,230 24 0 2,031,218 11,214 4,683,784 11,214 6,715,002 31 0 1,595,734 12,397 7,913,444 12,397 9,509,178 7 June 32,032 2,781,102 0 2,784,747 32,032 4,965,849 14 0 215,817 0 560,917 0 776,734 21 58,065 816,501 0 657,503 58,065 1,474,004 28 0 455,700 0 303,387 0 759,087 5 July 0 524,188 0 99,862 0 624,050 12 0 102,830 0 47,089 0 149,919 19 703,612 182,231 0 170,233 703,612 352,464 26 0 226,443 0 555,702 0 782,145 2 August * * * * * * 9 0 182,448 0 795,491 0 977,939 16 0 16,149 0 202,909 0 219,058 23 0 10,549 0 0 0 10,549 30 0 0 0 20,230 0 20,230 6 September 0 0 0 0 0 0 13 0 0 0 0 0 0 Total 793,709 11,652,354 23,611 26,044,813 817,320 37,697,167 Indicates that sampling was not conducted this week; estimates for the preceeding and following week were increased to account for the week that was missed.

58 were extrapolated based on actual seconds of daylight and darkness as previously discussed. We estimate that 5,836,638 larvae and 686,036 eggs were drawn into the intake system during the study period. (Table 3-13). Estimates derived using the worst case scenario indicate that 11,234,263 larvae and 995,888 eggs would have been entrained if pumping had occurred continuously (Table 3-14). The actual ichthyoplankton entrainment estimate represents 16.9 percent of the ichthyoplankton in the Kankakee River drift (Table 3-11), whereas 29.2 percent of the ichthyoplankton in the Kankakee River drift would be entrained under worst case conditions (Tables 3-11 and 3-14).

Discharge

Weekly estimates of ichthyoplankton in the Discharge were calculated two ways: 1) based on the volume actually pumped each week and 2) based on a worst case scenario that assumed that the maximum release rate of 28 MGD was maintained for the entire week (J. Tidmore 1989, CeCo, personal communication). We estimate that 1,394,405 larvae and 326,114 eggs were actually discharged into the river from 5 April through 28 June (Table 3- 15). If maximum discharge had occurred during this period, 1,955,233 larvae and 467,185 eggs would have been discharged into the river (Table 3-16).

59 TABLE 3-13 ACTUAL CASE ESTIMATES(a) OF WEEKLY ENTRAINMENT OF FISH EGGS AND LARVAE AT THE BRAIDWOOD STATION INTAKE, 1988.

Day Night Combined WeekDate of Eggs Larvae Eg2s Larvae Egg Larvae

19 April 0 9,658 8,830 0 0 18,488 26 0 5,412 265 6,236 265 11,648 3 May 0 12,948 0 45,489 0 58,437 10 0 35,385 0 189,399 0 224,784 17 400,474 85,877 0 461,954 400,474 547,831 24 209,951 73,356 20,885 1,639,006 230,836 1,712,362 31 0 291,811 34,693 1,273,726 34,693 1,565,537 7 June 4,674 61,934 2,878 195,116 7,522 257,050 14 0 68,044 1,156 109,402 1,156 177,446 21 2,836 108,494 5,561 314,425 8,397 422,919 28 0 92,588 366 92,092 366 184,650 5 July 0 56,410 475 113,985 475 170,395 12 ( 7)@) (25,502) (107) (76,974) (434) 19 1,3883 2 54,18 0 227,321 1,388 (102,476)281,439 26 -(c) - - - - 2 August ..... 9.... 16 0 2,666 . 0 29,134 0 31,800 23 0 1,291 0 16,303 0 17,594 30 0 3,241 0 12,014 0 15,255 6 September 0 0 0 35,577 0 35,57713 13 0 0 0 950 0 950 Total 619,650 988,708 66,386 4,847,933 686,035 5,836,638 a / Based on total volume pumped each week. Values in parenthesis were derived using densities from the week preceding and/or following the week indicated. (c) Dash indicates that plant was decoupled and no pumping took place.

60 TABLE 3-14 WORST CASE ESTIMATES(a) OF WEEKLY LARVAL FISH AND EGG ENTRAINMENT AT THE BRAJDWOOD STATION INTAKE, 1988.

Week of Day Night Combined Date Larvae Larvae U.gg Larvae 19 April 0 39,900 0 35,854 0 75,754 26 0 29,127 1,442 33,936 1,442 63,063 3 May 0 66,486 0 234,416 0 300,902 10 0 77,322 0 413,378 0 490,700 17 577,696 123,879 0 666,386 577,696 790,265 24 306,383 107,051 30,198 2,370,004 336,581 2,477,055 31 0 327,992 39,711 1,461,040 39,711 1,789,032 7 June 10,178 134,876 6,146 416,682 16,324 551,558 14 0 110,698 1,841 174,538 1,841 285,236 21 1,274 128,799 6,734 380,639 8,008 509,418 28 0 316,827 1,232 309,134 1,232 625,961 5 July 0 148,106 1,239 298,144 1,239 446,250 146,801) (2,486) (602,778) 12 45,495 620) (455,977) 19 13,809 3,731 759,304 26 2 August(c) (5,597) (228,743) 0 (1,036,392) (5,597) (1,265,135) 9 0. 7,000 77,119 0 84,119 16 0 0 23 4,571 0 58,800 0 63,371 0 3,360 12,285 0 15,645 30 0 0 6 September 0 0 37,072 0 37,072 13 0 0 0 1,645 0 1,645

Total 906,725 2,147,013 89,163 9,087,250 995,888 11,234,263 Based on total volume pumped each week. Values in parenthesis were derived using densities from the week preceding and/or following the week indicated. (c) The estimates on 2 August are for the period 26 July to 9 August when the plant was decoupled. The estimates were derived using the drift rates on 19 July and 16 August.

61 TABLE 3-15 WEEKLY ACT`UAL CASE ESTIMATES OF FISH EGGS AND LARVAE DISCHARGED INTO THE KANKAKEE RIVER BY THE BRAIDWOOD STATION, 1988

Week or Day Night Combined Date 0wg Larvae Eggs Larvae E ~gg Larvae 5 April 0 0 0 0 0 0 12 0 0 0 0 0 0 19 0 19,485 0 0 0 19,485 26 0 19,924 0 5,381 0 25,305 3 May 0 0 0 1,951 0 1,951 10 0 97,641 0 49,879 0 147,520 17 7,326 241,414 23,857 250,403 31,183 491,817 24 53,387 231,116 27,820 284,874 81,207 515,990 31 18,692 32,539 181,066 81,838 199,758 114,377 7 June 0 28,568 10,599 19,187 10,599 47,755 14 0 7,471 0 11,039 0 18,510 21 0 4,765 0 2,506 0 7,271 28 1,430 1,430 1,937 2,994 3,367 4,424 Total 80,835 684,353 245,279 710,052 326,114 1,394,405

62 TABLE 3-16 MAXIMUM WEEKLY ESTIMATES OF FISH EGGS AND LARVAE DISCHARGED INTO THE KANKAKEE RIVER BY THE BRAIDWOOD STATION, 1988.

Week of Day Night Combined Date Eggs Larvae Ey.s Larvae 0 5 April 0 0 0 0 0 0 12 0 0 0 0 0 0 19 0 26,707 0 0 0 26,707 26 0 27,137 0 7,330 0 34,467 3 May 0 0 0 2,745 0 2,745 10 139,588 0 71,308 139,588 210,896 17 10,126 333,689 32,976 346,115 43,102 679,804 24 74,742 323,562 38,948 398,824 113,690 722,386 31 26,840 46,722 259,992 117,511 286,832 164,233 7 June 0 38,273 14,199 25,705 14,199 63,978 14 0 9,941 0 14,689 0 24,630 21 0 8,576 0 4,511 0 13,087 28 3,976 3,976 5,386 8,324 9,632 12,300 Total 115,684 958,171 351,501 997,062 467,185 1,955,233

63 3.1.2 MACROINVERTEBRATE DRIFT

A total of 23,509 macroinvertebrates representing 161 taxa were identified in the 194 drift collections analyzed from the Kankakee River, Horse Creek, the Intake, and the Discharge (Table 3-17). Kankakee River collections yielded 132 taxa; the Intake - 121 taxa; Horse Creek - 107 taxa; and the Discharge - 61 taxa. The predominate taxa for all four sites combined included: Ephemeroptera (mayflies), Chironomidae (midges), Naididae (segmented worms), Trichoptera (eaddisflies), and Hemiptera (water bugs). These taxa accounted for 88 percent of the organisms collected. The Ephemeropterans comprised nearly 51 percent of the total drift (Table 3-18).

3.1.2.1 Kankakee River

A total of 13,056 organisms representing 132 taxa were identified from 130 drift samples (Table 3-17). Five groups accounted for 89.9 percent of the total catch: Ephemeroptera (58.5 percent); Chironomidae (17.2 percent); Naididae (7.2 percent); Hemiptera (3.5 percent); and Trichoptera (3.5 percent) (Table 3-18). Of the 132 taxa identified, 16 where collected exclusively in the Kankakee River (Table 3-17).

The ephemeropteran's (mayflies) were represented primarily by Caenidae - Caenis sp. (15.7 percent of the mayflies), Ephemeridae - Hexagenia sp. (11.9 percent), Heptageniidae - Heptagenia maculipennis (11.7 percent), Baetidae - Baetis sp. (9.7 percent), Polymitarcyidae - Ephoron sp. (9.6 percent), and Baetidae - Pseudocloen sp. (7.7 percent). Chronomidae was the most diverse family collected in the Kankakee River, being represented by 37 taxa (Table 3-17). The predominant Chironomidae were the following: Procladius sp. (20.0 percent of the Chironomids), Ablabesmvia sp. (14.7 percent), Polvpedilum convictum (10.2 percent), Rheotanytarsus (9.2 percent), and Labrundinia sp. (9.1 percent). Naididae was the second most diverse family collected and was represented by 14 species, of which Paranais frici (36.8 percent) and SMyaria lacustris (32.3 percent) were the most abundant. The hemipterans were represented in the drift by two families - Belastomatidae and Corixidae. The corixids comprised 99.6 percent of the hemipterans. The trichopterans were represented by 6 families and 11 taxa in the Kankakee River drift. The dominate trichopterans included Oxyethira sp. (50.5 percent) and Hydropsyche phalerata (24.5 percent) (Appendix C).

The mean macroinvertebrate density (day and night combined) for the Kankakee River was 15.7 organisms per 10ml3, ranging from 1.5 to 45.2 organisms per 1Om 3 (Table 3-19). For the entire study, night densities were consistently higher than da; densities. Night macroinvertebrate densities ranged from 2.4 to 83.6 organisms per 10ml and averaged 26.5 organisms per l10m 3, whereas day_ densities ranged from 0.2 to 34.6 organisms per 10m3 and averaged 5.1 organisms per 10m , five-fold lower than at night. Ephemeropterans were the

64 TABLE 3-17 THE DISTRIBUTION OF DRIFTING MACROINVERTEBRATES AMONG SAMPLING SITES NEAR THE BRAIDWOOD STATION, 1988

Taxa Discharge Horse Cr. Intake Kankakee R. Cnidaria Hydra sp. X X X X Platybelminthes (flatworms) Planariidae X X X X Nematoda (roundworms) X X X X Annelida (segmented worms) Oligochaeta Enchytracidae X X Nadidae X X X Cbaetogaster diaphanus X X X Dero digitata X X X Dero sp. X X x Nais bretscheri X X Nais communis X X X Nais elineuis X X Nais pardalis X X X X Nais variabilis X X X X Nais sp. x Ophidonais serpentina X X X x Paranais frici X X X X Piguetiella michiganensis X X X Pristina iongiseta leigdi X x Pristina sp. x Salvina appendiculata X X X Stylaria lacustris X X X X Vejodvskyella intermedia X X Tubificidac Branchiura sowerbvi x x Limnodrilus hoffmeisteri X x Immature w/o cap. chaetae X X Hirudinea (leeches) Glossiphoniidae X X Tardigrada (water bears) X Arthropoda Crustacea Isopoda (pill bugs) Ascellus sp. X X Amphipoda (scuds) Talitridae Hvalella azteca X X X Gammaridae Crangonx sp. X X X Gammarus sp. X X Deapoda Astacidae X X Acari Hydracarina (water mites) X X X X

65 Table 3-17 (Cont) Txa Discharge Horse Cr. Intake Kankakee R. lnsecta Ephemeroptera (mayflies) Baetidae X ftetissp. X x x x Callibaetis sp. X X X Centroptilum sp. X X X Lseudocloeon sp. X X X X Oligoneuriudae _Isonchia X X X X Heptageniidae x 1jeptagenia flavescens X H-Iepta.enia maculipennis X X X TI-eptagenia sp. X Mseudiron sp. X X X Stenacron sp. X X X X Stenonema intergrum X x Stenonema puIchellum X X X Stenonema terminatum X X Stenonema tripunctatum X Stenonema sp. X X X X Ephemerellidae Ephemerella needhami x Serraiella fisoni X Tricorythidae Tricorythodes sp. X X X X Caenidae Brachycercus sp. X X Zpisp. X X Baetiscidae Baetisca sp. X x Baetisca baikovi X X Potawanthidae Potamanthus sp. X X X X Ephermeridae X x Ephemera sp. X X JIexagenia sp. X X X Palingeniidae Pentagenia vittigera X Polymitarcyidae ERphoron sp. , X X Odonata (dragonflies & damselflies) Gomphidae X Aeschnidae X X Libellulida X X Coenagrionidae X X X X Argia sp. X X X Enallaema sp. X X X Plecoptera (stoneflies) x x Perlidae X X X X Perlesta sp. X x Table 3-17 (Cont) Taxa Discharge Horse Cr. Intake Kankakee R.

PIerlodidae Uovrla sp. X X Hemiptera (water bugs) Gerridae X Metrobates sp. x Belostomatidae X X X Corixicae X X X X Megaloptera (alderflies, dobsonflies, & fishflies) Corydalidae Corvdalus cornatus X Neuroptera (spongilla flies) Sisyridae Climacia sp. X X Trichoptera (caddisflies) X X X Philopotamidae Chimarra obscura X X Polycentropodidae X Cyrnellus fraternus X X Neureclipsis sp. X X Polycentropus sp. x X Hydropsychidae X X X Cheumatopsvche sp. X X X Hydropsyche betteni (near) X Hydropsyche orris (near) X Hvdropsyche phalerata (near) X X X X Hydropsyche sp. X X x Potamvia flava X X X SwMnhilopsvche bifida group X Symphitopsyche sp. X X Rhyacophilidae Protoptila sp. X X Hydropitilidae X X X Hydroptila sp. X X X X Mayatrichia avama x Oxvethira sp. X X X Leptocerinae NectoRsvche sp. X X X X Qcis sp. X x x Triaenodes sp. x Lepidoptera (aquatic caterpillars) Pyralidae X X Paraponyx sp. x x Petrophila sp. X X Coleoptera (beetles) Oryinidae Dineutus sp. X Ghnin us sp. X Haliplidae Pelto2dves sp. X X X

67 Table 3-17 (Cont) Taxa Discharge Horse Cr. Intake Kankakee R. Dytiscidae Laccophilus sp. x Hydrophilidae x Enochrus sp. x Tropistemus sp. X X Psephenidae P*sehonus herricki X Elmidae Dubiraphra sp. X X X Stenelmis sp. X X X X Macrony.chus glabratus X X X X Diptera (two-winged flies) Tipulidae Tn~ula sp. x Culicidae X X Annopheles sp. X Culex sp. X X Chaoboridae Chaoborus punctipennis X X X X Chaoborus sp. X Psychodidae Psychoda sp. X X X Ceratopogonidae X X X Simuliidae X X X Simulium sp. X X X X Chironomidae Chironominae Chironomus sp. X X X Cladotanytarsus sp. X X Cyptochironomus sp. X X x x CrEplotendipes sp. X X X DemicrMptochironomus sp. X X Dicrotendipes sp. X X X X Endochironomus sp. X Glvptotendipes sp. X Harnischia sp. X X X Microtendipes sp. X X X Parachironomus cf. frecuens X Parachironomus sp. X X X X Paracladopelma sp. X x Paralauterborniella sp. X Paratanytarsus sp. X X X Paratendipes sp. x x Pgolvpedilum convictum X X X X Polvpedilum scalaenum X X X olvpeodilum simulans X x Polvyedilum sp. X X X X Rheotaniarsus sp. X X X X Stempellina sp. x Stenochironomus sp. X X X

68 Table 3-17 (Cont) Taxa Discharge Horse Cr. Intake Kankakee R. Stictochironomus sp. X X Tanytarsus sp. X X X X Thbelos sp. X X X Zavrelia sp. X TanvD.dinae Ablabesniia sp. X X X X Coelotanypus sp. x x x Labrundinia sp. X X X Larsia sp. X X x Procladius sp. X X X X Tanypus sp. X X Thienemannimyia sp. X X X Thienemannlmnia series X X X X Orthocladinae Corynoneura sp. X Cricotopus bicintus group X X X X CricotoDus sylvestris group X X X Cricotopus tremulus group X X X X Cricotopus trifascia group X X X Cricotopus sp. X X X X Eukiefferiella sp. x Hydrobaenus sp. X X X Limnophyes sp. X Nanocladius sp. X X X X Orthocladius sp. X X X X Parakiefferiella sp. X X X X Rheocricotopus sp. X X X Smittia sp. x Thienemanniella sp. X X X Tyventia discoloripes group X X Diamesinae Diamesa sp. X X Stratiomyiidae X X X Tabanidae Tabanus sp. X Empididae x Mollusca Gastropoda-(nails) Pleuroceridae x Goniobasis sp. X Pleurocerca sp. x Physidae Phvsa sp. X X X X Lymnaeidae Lvmnaea sp. X X Planorbidae x Gvraulus sp. X X X -lelisoma sp. x Ancylidae Ferrissia sp. X X

69 Table 3-17 (Cont)

Taxa Discharge Horse Cr. Intake Kankakee R.

Pelecypoda (clams) Sphaeriidae x x x Corbiculidae Corbicula fluminea x x

Total Taxa/Location 60 107 121 132

Total Taxa 161

'7 A TABLE 3-18 RELATIVE ABUNDANCE OF THE DOMINANT MACROINVERTEBRATE TAXA COLLECTED NEAR THE BRAIDWOOD STATION, 1988

Tan Discharge Horse Creek Intake Kankakee River

Hydra 1.3 0.5 0.3 1.4 Planarildae 0.7 0.4 0.3 0.2 Nematoda 0.1 0.2 0.1 <0.1 Tardigrada 0.1 Naididae 2.4 21.6 12.9 7.2 Other Oligochaeta 0.3 0.2 Hvalefla azeca 9.9 1.4 1.9 Other Crustacea 0.1 0.2 0.1 <0.1 Decapoda 0.2 <0.1 Hydracarina (acarina) 0.8 0.4 1.0 0.5 Ephemeroptera 9.8 17.9 46.0 58.5 Odonata 0.1 0.5 2.7 1.9 Plecoptera 0.1 0.1 0.2 0.2 Hemiptera 0.1 1.3 1.9 3.5 Megaloptera <0.1 Neuroptera 1.0 <0.1 Thichoptera 19.6 3.8 3.6 3.5 Lepidoptera 0.1 0.2 0.1 Coleoptera 0.7 3.9 0.6 1.2 Chironomidae 59.4 29.2 23.5 17.2 Other Diptera 4.0 4.2 0.9 0.6 Phvsa sp. 0.5 5.0 3.4 0.9 Other Gastropoda 0.1 0.1 0.6 0.4 Pelecypoda 0.2 0.2 <0.1 0.1

71 TABLE 3-19 DIEL DIFFERENCES IN MACROINVERTEBRATE DENSITIES DURING COLLECTIONS IN THE KANKAKEE RIVER, 1988

(No.i•0nNight 3) (No./10m)Mean _3) Date (No./lrn3) 19 April 4.8 12.4 8.6 26 2.9 6.8 4.9 3 May 2.4 12.4 7.4 10 5.0 5.8 5.4 17 5.0 19.0 12.0 24 6.8 83.6 45.2 31 34.6 39.6 37.1 7 June 3.2 33.8 18.5 14 1.0 79.8 40.4 21 1.4 45.6 23.5 28 0.2 20.2 10.2 5 July 0.4 12.0 6.2 12 0.6 2.4 1.5 19 2.6 30.6 16.6 26 0.7 72.1 36.4 2 August * 9 2.3 16 6.0 21.2 13.6 23 1.3 4.3 2.8 30 18.5 10.4 14.5 6 September 5.2 21.2 13.2 13 1.8 22.4 12.1 MEAN 5.1 26.5 15.7 * Denotes no samples collected

72 most abundant group of macroinvertebrates collected during 15 of the 20 sampling dates when both day and night samples were collected. During the period 24 May through 21 June and on 26 July they comprised greater than 59 percent of the mean daily density (Appendix D). Macroinvertebrate drift density was more uniformly distributed over the study period than was the density of ichthyoplankton (Table 3-19).

3.1.2.2 Horse Creek

A total of 1,612 organisms representing 107 taxa were identified from 18 drift samples (Table 3-17). Chironomidae (29.2 percent), Naididae (21.6 percent), Ephemeroptera (17.9 percent), and Hyalella azteca (9.9 percent) accounted for 78.6 percent of the drifting macroinvertebrate organisms in Horse Creek (Table 3-18).

The chironomids were represented in the drift by 37 taxa (Table 3-17). Tanytarsus sp. (14.9 percent), Pohypedilum convictum (13.6 percent), Orthocladius sp. (10.4 percent), Procladius sp. (7.7 percent), Parakiefferiella sp. (7.0 percent), and Larsia sp. (6.8 percent) were the predominant chironomidae collected (Appendix C). The predominant species of Naididae collected included Stylaria lacustris (42.0 percent), Nais varabilis (14.1 percent), Chaetogaster diaphanus (13.5 percent), and Nais pardalis (10.1 percent). The ephemeropterans collected in Horse Creek were represented by 8 families which included 15 taxa (Table 3-17). The most commonly encountered ephemeropterans were: Baetidae - Baetis sp. (24.7 percent); Caenidae - Caenis sp. (21.9 percent); Heptageniidae - Heptagenia maculipennis (13.3 percent); and Tricorythidae - Tricorythodes sp. (11.5 percent). Taxa exclusive to Horse Creek were Tardigrada (water bears); Ephemeroptera - Stenonema tripunctatum; Hemiptera - Metrobates sp.; Coleoptera - Gyrinus sp. and Psephenus herricki; Diptera - Tipula sp. and Anopheles sp.; Chironomidae - Endochironomus sp., Glyptotendipes sp., Paralauterborniella sp., Stempellina sp., and Limnophyes sp.; and Gastropoda - Helisoma sp.

Because we typically alternated between day and night sampling for macroinvertebrates, diel comparisons are possible on only two dates, 3 May and 23 August. On these two dates, drift densities at night were 6.6 times higher than during the day. (Appendix D).

3.1.2.3 Intake

A total of 7,190 organisms representing 121 taxa were identified from 36 drift samples collected at the Intake (Table 3-17). Three macroinvertebrate groups accounted for nearly 83 percent of the total: Ephemeroptera (46.0 percent), Chironomidae (23.5 percent), Naididae (12.9 percent) (Table 3-18). Eleven taxa were collected exclusively at the Intake: Ephemeroptera - Ephemerella needhami and Pentagenia vittigera; Odonata - Gomphidae; Megaloptera - Corydalus cornutus; Trichoptera - Triaenodes sp.; Coleoptera - Dineutus sp.;

73 Chironomidae - Zavrelia sp., Corynoneura sp., and Tabanus sp.; and Gastropoda - Goniobasis sp. and Pleurocerca sp. (Table 3-17).

The Ephemeroptera were represented by primarily Tricorythidae - Tricorythodes sp. (21.9 percent), Baetidae - Baetis sp. (21.8 percent), Ephemeridae - Hexagenia sp. (14.2 percent), and Baetidae - Pseudocloeon (13.4 percent). The family chironomidae, the most diverse group, was represented by 37 taxa, the same number of taxa as in the river and at the Intake. The predominate chironomids included: Polypedilum convictum (31.5 percent); Procladius sp. (12.3 percent); Larsia sp. (8.2 percent); Ablabesmyia sp. (7.0 percent) and immature Polypedilum sp. (6.0 percent). Four species of Naididae comprised nearly 93 percent of the total number of naidids; these four species were Stylaria lacustris (68.3 percent), Nais variabilis (9.6 percent), Paranais frici (9.0 percent) and Chaetogaster diaphanus (5.7 percent) (Appendix C).

Of the 121 taxa collected at the Intake, 75 taxa were common among the Intake, the Kankakee River, and Horse Creek (Table 3-17). The species composition of the Intake appears to be a combination of Horse Creek and Kankakee River taxa. In addition to the 11 taxa unique to the Intake, several taxa were present at only two of the three locations (Table 3-17). Table 3-20 shows that 26 taxa were common between the Intake and Kankakee River whereas only 9 taxa were common between the Intake and Horse Creek. Similarly, a comparison of the relative abundance of the various macroinvertebrate groups shows that the relative abundance at the Intake is more closely aligned with that in the river than in Horse Creek. For example, the relative abundance of Ephemeropterans is similar at the Intake and the Kankakee River but both are much higher than in Horse Creek (Table 3-18). This suggests that for many taxa, certainly ephemeropterans, the species composition at the Intake is influenced more by drift in the Kankakee River than by drift originating in Horse Creek. However, this trend is not evident in all predominant macroinvertebrate groups. For example, the abundance of trichopterans and chironomids is relatively similar among the three sites; the relative abundance of these groups at the Intake is intermediate between their abundance in Horse Creek and in the Kankakee River.

Macroinvertebrates were present in all samples anallzed. The mean density (diel periods combined) for the study was 29.5 organisms per 10m , ranging from 5.7 to 118.8 organisms per 10m3 (Table 3-21). The mean at the Intake (29.5) was approximately double what it was in the river (15.7). On all sampling dates but two (7 June and 6 September), densities were higher at night than they were during the day (Table 3-21). Day densities ranged from 1.0 to 55.2 organisms per 10m 3 and averaged 12.2 organisms per 10m 3. Night densities ranged from 8.7 to 203.2 organisms per 10m and averaged 46.8 organisms per 10m 3 . Peak mean density (diel periods combined) for the Intake occurred on 19 July (118.8 organisms/10m). This peak was attributable to mayflies, mainly Tricorythodes sp. (32.5/10ml3 ) and Hexagenia sp. (28.7/10• 3) (Appendix D).

74 TABLE 3-20 A COMPARISON OF MACROINVERTEBRATE TAXA COMMON BETWEEN THE BRAIDWOOD INTAKE AND THE KANKAKEE RIVER OR HORSE CREEK, 1988

Taxa Intake Kankakee River Horse Creek Enchytracidae X x Nais elinauis X x Vejodvskyella intermedia X X Branchiura sowerb3i X x limnodrilus hoffmeisteri X x GIossiphoniidae x x Acellus sp. X X Cragonvx sp. X x Pseudiron sp. X X Stenonema intergrum X X S. pulchellum X X Brachycercus sp. X x Baetisca sp. X X . baioleovi X X Aeschnidae X x Libellulidae X X Enallagma X X Perlesta sp. X x Isoperla sp. X X Chlmarra obscura X x Potamvia flava X X Paraponnv sp. X X Tropistemnus sp. Culex sp. X x D-e-micrvtochiron onus X x Harnischia sp. X X Paratendipes sp. X x Polypedilum simulans X x Stict ochironomus sp. X X Coelotanypus sp. X X Tanypus sp. X x Cricotopus sylvestris x x Hydrobaenus sp. x x Diamesa sp. X x Ferrissia sp. X x Sphaeriidae X X

75 TABLE 3-21 DENSITY OF MACROINVERTEBRATES COLLECTED AT BRAIDWOOD STATION INTAKE, 1988

DENSITY (No./10m3 )

Day Nigh Mean 19APR 6.7 18.8 12.8 26 4.3 12.8 8.6 3MAY 2.8 13.7 8.3 10 4.7 23.1 13.9 17 1.8 40.4 21.1 24 18.5 158.4 88.5 31 8.3 49.7 29.0 7JUN 22.5 8.9 15.7 14 1.0 11.2 6.1 21 4.2 41.7 23.0 28 2.7 8.7 5.7 5JUL 55 52.5 29.0 12 (a) 19 34.4 203.2 118.8 26 2AUG 9 16 7.1 28.7 17.9 23 9.9 32.1 21.0 30 7.7 66.6 37.2 6SEP 55.2 29.6 42.4 13 21.7 42.8 32.3 MEAN 12.2 46.8 29.5 (a) No samples collected - plant decoupled.

76 3.1.2.4 Discharge

A total of 1,651 organisms representing 60 taxa was identified from 10 drift samples collected in the Discharge (Table 3-17). The dominant groups of macroinvertebrates collected in the Discharge were Chironomidae (59.4 percent), Trichoptera (19.6 percent) and Ephemeroptera (9.8 percent) (Table 3-18). Of the 60 taxa collected, 44 were also present at the three other sites. Only Hydropsyche orris was unique to the discharge.

Chironomidae, the most diverse family collected, was represented by 19 taxa; Dicrotendipes sp. (40.4 percent), Parakiefferiella sp. (15.7 percent) and immature Cricotopus sp. (11.8 percent) were the three most abundant chironomids collected. The trichopterans were represented almost entirely by Potamwia fiava (86.4 percent), with Cyrnellus fraternus comprising 10.5 of the remaining 13.6 percent. Ephemeropteran numbers were also dominated by a single taxa, Pseudocloeon sp. of the family Baetidae, which comprised 61.5 percent of the total number of ephemeropterans (Appendix C).

Macroinvertebrates were present in all samples collected. The mean density (die] periods combined) for the 10 samples collected was 27.3 organisms per 1OM 3, ranging from 18.6 to 64.7 organisms per 10m 3:

Density (No./10m3) Date Day Night Mean 12 April 30.5 26.6 28.6 3 May 13.3 23.9 18.6 17 May 6.5 42.9 24.7 7 June 13.7 37.9 25.8 28 June 18.0 111.4 64.7 Mean 16.4 48.5 27.3

With the exception of 12 April, macroinvertebrate densities were consistently higher at night than they were during the day. The mean night density (48.5) was approximately 3 times higher than the mean day density (16.4). Day densities ranged for 6.5 to 30.5 organisms per lOM3, whereas night densities ranged from 23.9 to 111.4 organisms per 10m 3.

On 12 April, the midge Parakiefferiella dominated the drift comprising 52.4 percent of the mean density. This was the only date that Parakiefferiella was present in the drift (Appendix D). The caddisfly Potamyia flava was present in the drift on all dates. It dominated the drift on 3 May (9.4/10m3 ) and was the second most abundant taxa collected on 12 April (8.2/10m 3). Potamyia flava was also common on 7 June (2.5/10m3) and 28 June (4.9/10m 3 ). On 17 May, the mayfly Pseudocloen sp. and the caddisfly rnellus fraternus dominated the drift, 37.7 and 3.1 percent, respectively. These two taxa were also present on 7 and 28 June,

77 but were less abundant. The midges Cricotopus sp. (immatures) and Dicrotendipes sp. were the two most abundant taxa collected on 7 June (7.1 and 5.5 organisms per 1I0 3, respectively). Dicrotendipes sp. also dominated the drift on 28 June (36.5/10m 3), comprising nearly 57 percent of the drift (diel periods combined) and 65.3 percent of the night drift. It was the most abundant taxa collected on any one date. Other predominate taxa collected on 28 June included the midges Parachironomus (9.3/10m3) and Rheotanytarsus (3.1/10M3); and the phantom midge, Chaoborus punctipennis (2.5/10m3). The total number of taxa collected ranged from 16 on 12 April to 30 on 3 and 17 May. (Appendix D).

3.1.2.5 Extrapolated Values For Macroinvertebrates

In order to determine what, if any, impact operation of the Braidwood Station might have on macroinvertebrate populations in the Kankakee River, it is necessary to estimate the total number of macroinvertebrates entrained by the plant and compare that with the total number in the drift in the river. Estimates of macroinvertebrates coming out of the cooling lake and from Horse Creek are also useful as they provide an indication of the contribution each of these areas makes to the drift in the river. For all four areas (i.e. Intake, Discharge, Horse Creek, and Kankakee River), the number of macroinvertebrates was estimated according to the procedures described in Section 3.1.1.7.

Kankakee River

We estimate that approximately 666 million organisms were present in the macroinvertebrate drift in the Kankakee River from 19 April through 13 September (Table 3-22). Night drift accounted for nearly 69 percent of the total drift. Approximately 36 percent of the total drift occurred during the weeks of 24 and 31 May. During this period, Ephemeropterans (primarily Heptagenia maculipennis, Baetis sp., Pseudocloeon sp., and Ephoron sp.) comprised 75 to 77 percent of the total drift.

Intake

The number of macroinvertebrates entrained by the Braidwood Station intake was estimated in 2 ways: 1) Actual case - based on actual volume pumped during each week sampled in 1988 (see Table 2-3); and 2) Worst case - based on the maximum pumping rate (50,000 gpm) for 24 hours a day, seven days a week. The actual case estimate was 50,299,133 organisms or 7.6 percent of the total river drift (Table 3-23). The worst case estimate was 123,807,125 organisms or 18.6 percent of the total river drift (Table 3-24).

78 TABLE 3-22 WEEKLY ESTIMATES OF MACROINVERTEBRATE DRIFT IN THE KANKAKEE RIVER NEAR THE BRAIDWOOD STATION, 1988

Day Night Total Week Of Drift Drift Drift 19 April 28,816,907 48,773,438 77,590,345 26 13,188,525 19,167,127 32,355,652 3 May 9,543,443 29,062,201 38,605,644 10 18,703,692 12,189,450 30,893,142 17 13,975,416 28,595,854 42,571,270 24 15,876,161 104,139,385 120,015,546 31 77,763,931 44,639,952 122,403,883 7 June 4,880,792 24,900,638 29,781,430 14 1,027,705 39,611,887 40,639,592 21 1,270,115 19,855,647 21,125,762 28 123,165 6,008,282 6,131,447 5 July 246,680 3,631,222 3,877,902 12 268,254 538,181 806,435 19 1,316,112 8,014,125 9,330,237 26 377,405 20,867,630 21,245,035 2 August (540,785)* (9,430,610) (9,971,395) 9 902,447 10,767,890 11,670,337 16 3,229,632 7,051,968 10,281,600 23 685,601 1,477,161 2,162,762 30 9,090,746 3,506,720 12,597,466 6 September 2,738,736 8,323,462 11,062,198 13 1,031,303 9,925,818 10,957,121 Total 205,597,553 460,478,648 666,076,201

*Values in parenthesis were derived using the mean of the density on 26 July and 9 August.

79 TABLE 3-23 ESTIMATES OF THE NUMBER OF MACROINVERTEBRATES ACTUALLY ENTRAINED AT THE BRAIDWOOD STATION, 1988

Da Night Total Week Of Drift Drift Drift 19 April 184,886 345,856 530,742 26 93,088 169,834 262,922 3 May 64,738 186,029 250,767 10 259,858 718,410 978,268 17 153,047 1,849,648 2,002,695 24 1,559,877 7,191,650 8,751,527 31 927,981 2,736,885 3,664,866 7 June 1,314,636 256,125 1,570,761 14 78,211 431,446 509,657 21 451,164 2,107,962 2,559,126 28 100,364 159,285 259,649 5 July 265,174 1,246,714 1,511,888 12 (4 3 5,9 3 0 )(a) (1,373,081) (1,809,011) 19 1,591,166 4,841,898 6,433,064 26 -(b) 2 August 9 16 315,420 781,457 1,096,877 23 319,549 662,434 981,983 30 831,975 5,000,642 5,832,617 6 September 5,659,216 2,289,299 7,948,515 13 1,311,603 2,032,595 3,344,198 Total 15,917,883 34,381,250 50,299,133 (a) Values in parenthesis were derived using the mean of the density on 26 July and 9 August. (b) Dash indicates plant not pumping.

80 TABLE 3-24 WORST CASE ESTIMATES OF MACROINVERTEBRATES ENTRAINED AT THE BRAIDWOOD STATION, 1988

Da Night Total Week Of Drif Drift Drift 19 April 763,833 1,404,228 2,168,061 26 500,927 924,196 1,425,123 3 May 332,423 958,664 1,291,087 10 567,847 1,568,000 2,135,847 17 220,773 2,668,183 2,888,956 24 2,276,358 10,399,123 12,675,481 31 1,043,042 3,132,605 4,175,647 7 June 2,862,895 546,973 3,409,868 14 127,239 688,324 815,563 21 535,507 2,551,857 3,087,364 28 343,546 534,681 878,227 5 July 696,213 3,260,929 3,957,142 12 (2,513,350)(a) (8,061,571) (10,574,921) 19 4,277,882 13,074,019 17,351,901 26 2 August [7,658,889] [22,713,727] [30,272,616] 9 16 828,044 2,068,465 2,896,509 23 1,131,242 2,411,556 3,542,798 30 861,693 5,114,179 5,975,872 6 September 5,967,563 2,385,453 8,353,016 13 2,308,978 3,522,148 5,831,126 Total 35,818,244 87,988,881 123,807,125

(a) Values in parenthesis were derived using the mean of the density on 5 July and 9 July. (b) Values in brackets are estimates for the three week period the plant was decoupled and were derived using densities of 19 July and 16 August.

81 Horse Creek

An accurate estimate of the Horse Creek macroinvertebrate drift is not possible because in a given week only one day or one night sample was analyzed. If one assumes that the drift during a two-week period can be estimated reliably based on only one day and one night sample, then an estimate of 8 million organisms can be derived. However, this should be considered only a "ballpark" estimate.

Discharge

Data are insufficient to develop an accurate estimate of the number of macroinvertebrates discharged to the river.

3.2 IMPINGEMENT

3.2.1 SPECIES COMPOSITION

The twelve month impingement study at the Braidwood Station resulted in the collection of 59 species of fish (Table 3-25). Two species of special note were pallid shiner and river redhorse. Pallid shiner (chub) is an endangered species and river redhorse is a threatened species as classified by the State of Illinois (Illinois DOC 1989).

A total of 78 fish species has been collected during Kankakee River surveys by the Illinois Natural History Survey (INHS) from 1977 through 1988 (Larimore & Peterson 1989). All species collected during the 1988-1989 impingement study have been previously collected from the river. A comparison of species collected during the 1988-1989 impingement study with those collected during two recent surveys of the river (Table 3-26) shows that five species (goldfish, pirate perch, yellow bass, rainbow darter, and freshwater drum) were unique to the impingement study. Four species (central stoneroller, rudd, starhead topminnow, and walleye) were unique to the river collections. All of the species unique to either the impingement study or the river collections were represented in the catch by 5 or fewer individuals. Sixteen pallid shiners were collected during impingement compared to none in the 1988 river sampling (Larimore and Peterson 1989), and 96 in the 1989 river sampling (Appendix E). The INHS has not collected pallid shiner from the river since 1986 (Larimore and Peterson 1989). River redhorse has been collected by INHS every year from 1977 to 1988. The 1988 INHS river collections yielded nine river redhorse compared to two individuals during the 1988-1989 impingement study.

Raw data from the impingement study are presented in Appendices F and G.

82 TABLE 3-25 ABUNDANCE OF FISH CAPTURED DURING THE 1988-1989 BRAIDWOOD IMPINGEMEwT STUDY NUMBER GRAMS SPECIES TOTAL Z TOTAL I

LONGNOSE SAR 2 0.011 4 0.002 6IZZARD SHAD 12,220 69.118 120,831 62.827 GRASS PICKEREL 6 0.034 33 0.017 NORTHERN PIKE 2 0.011 7 0.004 GOLDFISH 1 0.006 125 0.065 COMMON CARP 22 0.124 5,117 2.661 HORNYHEAD CHUB 40 0.226 338 0.176 GOLDEN SHINER 70 0.396 792 0.412 PALLID SHINER 16 0.090 25 0.013 EMERALD SHINER 13 0.074 55 0.029 GHOST SHINER 5 0.028 7 0.004 STRIPED SHINER 97 0.549 999 0.519 RED SHINER 2 0.011 10 0.005 ROSYFACE SHINER 300 1.697 375 0.195 SPOTFIN SHINER 238 1.346 871 0.453 SAND SHINER 20 0.113 40 0.021 REOFIN SHINER 2 0.011 7 0.004 HIMIC SHINER 149 0.843 223 0.116 SPOTFIN X RED SHINER 2 0.011 9 0.005 SUCKERMOUTH HINNOW 5 0.028 22 0.011 BLUNTNOSE MINNOW 170 0.962 738 0.384 FATHEAD MINNOW 51 0.2BB 125 0.065 BULLHEAD MINNOW 62 0.464 217 0.113 GUILLBACV 27 0.153 2,371 1.233 UNID CARPIODES 2 0.011 8 0.004 WHITE SUCKER 1 0.006 140 0,073 NORTHERN HOG SUCKER 6 0.034 136 0.071 SMALLMOUTH BUFFALO 7 0.040 429 0.2.3 SPOTTED SUCKER 3 0.017 37 0.01'9 SILVER REDHORSE 80 0.452 1,447 0.7") RIVER REDHORSE 2 0.011 1,692 0.88j' BLACK REDHORSE 2 0.011 192 0.100 GOLDEN REDHORSE 28 0.158 1,572 0.817 SHORTHEAD REDHORSE 119 0.673 2,22(1 1.154 UNID MOXOSTOMA 6 0.034 10 0.005 BLACK BULLHEAD 17 0.096 24E 0.128 YELLOW BULLHEAD 14 0.079 344 0.179 BROWN BULLHEAD 3 0.017 105 0.055 CHANNEL CATFISH 47 0.266 3,437 1.787 STONECAT 90 0.509 2,658 1.382 TADPOLE MADTOM 2 0.011 7 0.004 PIRATE PERCH 1 0.006 6 0.003 BLACKSTRIPE TOPMINNOW 1 0.006 1 0.001 BROOK SILVERSIDE 190 1.075 324 0.168 YELLOW BASS 2 0.011 405 0.211 ROCK BASS 1,816 10.271 16,615 8.639 GREEN SUNFISH 104 0.588 2,447 1.272 ORANBESPOTTED SUNFISH 72 0.407 742 0.386 BLUEGILL 175 0.990 3,079 1.601 LON6EAR SUNFISH 544 3.077 4,056 2.109 HYBRID SUNFISH 2 0.011 19 0.010 UNID LEPOMIS 29 0.164 31 0.016 SMALLMOUTH BASS 553 3.128 8,498 4.419 LARGEMOUTH BASS 43 0.243 2,465 1.282 WHITE CRAPPIE 31 0.175 1,156 0.601 BLACK CRAPPIE 40 0.226 2,680 1.393 RAINBOW DARTER 1 0.006 2 0.001 JOHNNY DARTER 3 0.017 3 0.002 BANDED DARTER 3 0.017 3 0.002 YELLOW PERCH 7 0.040 161 0.084 LO6PERCH 36 0.204 193 0.100 BLACKSIDE DARTER 44 0.249 162 0.084 SLENDERHEAD DARTER 3 0.017 a 0.004 FRESHWATER DRUM 9 0.051 1,246 0.648 TOTAL FISH 17,680 100.000 192,323 100.000

83 TABLE 3-26 COMPARISON OF FISH SPECIES IN IMPINGEMENT AND RIVER COLLECTIONS FROM THE KANKAKEE RIVER NEAR THE BRAIDWOOD STATION.

Impingement River Collections(a) Seine Collections(b) Species 1988-1989 1988 1989

Longnose gar X x x Gizzard shad X X X Grass pickerel X X X Northern pike X x Central stoneroller x Goldfish X Common carp X X X Hornyhead chub X X X Rudd X X Golden shiner X X X Pallid shiner(c) x x Emerald shiner x x Ghost shiner X x Striped shiner x x x Red shiner X x Rosyface shiner X X X Spotfin shiner X x x Sand shiner X x x Redfin shiner X X X Mimic shiner X X X Spotfin x Red shiner X Suckermouth minnow X x Bluntnose minnow X X x Fathead minnow X X Bullhead minnow X X x Quillback X X X White sucker X X X Northern Hogsucker X X X Smallmouth buffalo X X X Spotted sucker X x Silver redhorse X x x River redhorse(d) x x x Black redhorse X X x Gol den redhorse X X X Shorthead redhorse X X X Black bullhead X X Yellow bullhead X X X Brown bullhead X X Channel catfish X x x Stonecat X X Tadpole madtom X X Pirate perch X Blackstripe topminnow X X X Starhead topminnow x Brook silverside X X X Yellow bass X Rock bass X X X Green sunfish X X X

84 TABLE 3-26(CONT.) Impingement River Collections(a) Seine Collections(b) Species 1988-1989 1988 1989

Orangespotted sunfish X X X Bluegill X X X Longear sunfish x x x - Hybrid sunfish X Smallmouth bass X X X Largemouth bass X X X White crappie X X Black crappie X X X Rainbow darter X Johnny darter X X X Banded darter X X X Yellow perch X X X Logperch X X X Blackside darter X X X Slenderhead darter X X X Walleye X X Freshwater drum X

Total Species 59 45 56

(a) Larimore and Peterson 1989. (b) EA 1989. (c) State of Illinois Endangered $pecies (d) State of Illinois Threatened species.

85 m

3.2.2 RELATIVE ABUNDANCE

A total of 17,680 fish was collected in the 1988-1989 impingement study at the Braidwood Station (Table 3-25). Gizzard shad strongly dominated the collections (12,220 individuals; 69.1 percent of the total impingement). Other species which comprised greater than 1 percent of the total catch included: rock bass (1,816; 10.3), smallmouth bass (553; 3.1), longear sunfish (544; 3.1), rosyface shiner (300; 1.7), spotfin shiner (238; 1.3), and brook silverside (190; 1.1). Gizzard shad also dominated the catch in terms of biomass (62.8 percent), followed by rock bass (8.7), smallmouth bass (4.4), carp (2.2), and longear sunfish (2.1). No other species accounted for more than 2 percent of the biomass (Table 3-25).

3.2.3 TEMPORAL VARIATION

Considerable temporal fluctuations were noted in monthly and daily catches, particularly during the period from October (1988) through March (1989) (Figure 3-7); the highest monthly catch occurred during this six month period. Monthly catches during this period ranged from 1,108 in February to 6,310 in December. Catch rates (number impinged/hour) ranged from 4.2 fish per hour in February to 26.1 in December:

Oct Nov Dec Jan Feb Mar

Total Catch 1,265 1,863 6,310 3,942 1,108 1,981 No. Fish/Hour 5.8 5.9 26.1 15.7 4.2 7.5 No. of Species 15 32 30 45 36 47

Ninety-three percent of the entire catch occurred during this six month period. Species richness was highest in March (47 species) and January (45 species) and averaged 34 species during the first six months of the study.

Impingement catch rates decreased dramatically during the last six months (April- September) of the study. Since fewer than 100 hours were sampled in September (because pumping often could not occur because the cooling lake was full) and only three collections were made in October 1989, comparisons will emphasize the April through August period. Total catches during this 5-month period ranged from a low of 85 in August to a high of 457 in May. Catch rates were highest in April (1.8 fish per hour) and lowest in August (0.3 fish per hour):

86 Apr May Jun Jul.._ Aug

Total Catch 269 457 180 176 85 No. Fish/Hour 1.8 1.3 0.6 0.9 0.3 No. of Species 33 33 38 22 26

Species richness during the spring/summer period ranged from 22 species (July) to 38 species (June). A comparison of mean monthly total catches, catch rates, and species richness (i.e., No. of Species), for October - March vs. April - August is as follows:

Monthly Means Total Catch Catch/Hour Species Richness

October - March 2,745 10.9 34 April - August 233 1.0 30

During October-March, monthly total catches and catch rates were approximately 10 times higher than during April - August. Species richness was similar between the two periods.

As previously mentioned, considerable fluctuations were noted in monthly and daily catches from October through March (Figure 3-7). The fluctuations from October through January were due solely to gizzard shad (Figure 3-8), as they accounted for 84 percent of the daily catch during this period (Appendix G). The relative abundance of gizzard shad and the next three most common species is summarized below:

Gizzard Shad Rock bass Smallmouth bass Longear sunfish All Others

Oct 90.9 3.4 1.9 1.2 2.6 Nov 72.9 10.4 1.6 2.8 12.3 Dec 95.2 2.4 0.3 0.4 1.7 Jan 78.8 7.8 3.2 1.5 8.7 Feb 44.0 16.7 7.4 4.4 27.5

Gizzard shad was the dominant species from October through February. Rock bass was consistently the second most abundant species impinged, while smallmouth bass and longear sunfish were typically the third or fourth most abundant taxa collected. Young-of-the-year Lepomis were common in November and rosyface shiner was common in February.

The relative abundance of gizzard shad decreased dramatically in March, as it comprised only 1.2 percent of the March catch. Rock bass was the dominant species in March, April,

87 FIGURE 3-7. Total Fish Collected Braidwood Impingement 1988- 1989 1200

2597 1000-

*jE 800-

0 600 zIhaE 400

0OcOct Nov DocD JanJ FebF MarM M AprA MayMay JunJu JulJul-t--- Aug SepSe

I I II II a

FIGURE 3-8. Gizzard Shad Collected Braidwood Impingement 1988 - 1989

1200 2573 1000 i 800 1/ 000

E 400 z I

0 OctOc t NovN DocDe- JanJ FebF MarM Apr MayMa JunJ Jul Aug Sep and May comprising 40.6, 23.8, and 11.9 percent of the monthly catches, respectively. Striped shiner, spotfin shiner, and mimic shiner were the three most abundant species collected in June. The July catch was dominated by longear sunfish (43 percent), whereas rock bass was the most commonly collected species in August and September/October when it accounted for one-quarter of the catch (Appendix G).

The endangered pallid shiner was collected on 11 of 21 sampling dates from 19 April through 6 June. Single specimens of the threatened river redhorse were collected on 3 January and 6 June 1989 (Appendix F).

3.2.4 LENGTH DISTRIBUTION OF SELECTED FISH SPECIES

Length frequency figures were developed for common species to document which size classes of fish were most commonly collected in the impingement samples. Length data was compiled for the seven most common species (excluding minnows) collected during the 1988- 1989 study. These seven species (gizzard shad, rock bass, smallmouth bass, longear sunfish, bluegill, shorthead redhorse, and silver redhorse) comprised 88 percent of the total number of fish collected during impingement sampling (Table 3-25).

Gizzard shad impinged during the 1988-1989 study ranged from 22 to 403 mm and averaged 108.4 mm in length (Figure 3-9).. The large majority of the gizzard shad collected (86 percent) were between 55 and 135 mm long indicating that most of the gizzard shad collected were young-of-the-year (YOY) specimens. Length-frequency distributions for gizzard shad collected during the 1988 river collections also showed domination by YOY fish (40-120 mm). Very successful gizzard shad spawns were observed in the river in 1987 and 1988 (Dickson 1988; Larimore and Peterson 1989).

Rock bass impinged during the 1988-1989 study ranged from 30 to 261 mm and averaged 70.6 mm in length (Figure 3-10). Eighty-five percent of the rock bass collected were 45 to 85 mm long, indicating the predominance of YOY fish. Rock bass collected during the 1988 river survey were also dominated by YOY fish (20-60 mm) (Larimore and Peterson, 1989).

Smallmouth bass ranged from 57 to 375 mm and averaged 97.3 mm (Figure 3-11). Nearly 90 percent of impinged smallmouth bass were YOYs between 65 and 125 mm in total length. This is similar to the 1988 INHS smallmouth bass catch where YOYs (40-100 mm) comprised 91.0 percent of the total catch (Larimore and Peterson 1989).

Longear sunfish ranged in length from 28 to 133 mm and averaged 60.1 mm in length (Figure 3-12). Fifty-two percent of the total catch of longear sunfish occurred in a narrow length interval from 35 to 55 mm, obviously YOY fish. Longear sunfish were nearly evenly distributed among other length intervals up to 125 mm (Figure 3-12). This obfuscation may

90 FIGURE 3 -9. 1900-09 BRAIDNOOD STATION IMPINGENENT STUDY - LENGTH FREQUENCIES ...... SPECIES CODE:GIZIARD SHAD ------PERCENTAGE OF LENGTH LENGTH TOTAL LENGTH (Wa) cum CON MIDPOINT FRED FRED PERCENT PERCENT 0 0 0.00 0.00 10 i I 0.07 0.07 20 0.00 0.07 30 1 0 6 40 If 5 0.33 0.40 50 i1" 22 28 1.46 1.86 iffeuiffell 95 123 6.31 9.17 60 298 11.62 19.79 70 *i*iiteti*i li#i 175 80 ?,l.nttItlItIttllte 139 437 9.23 29.02 90 1tlttttttttlt 123 560 8.17 37.18 100 lttlt ltt!!llttlt~tt 185 745 12.28 49.47 110 1tt tti ttttt~ltHtttllttlll lt !ttlI~i 262 1007 17.40 66.87 193 1200 12.82 79.68 120 euelee**lfeefle 88.05 130 n;;;.*...*t*** 126 1326 9.37 140 :nnz.' 68 1394 4.52 92.56 nil 36 1430 2.39 94.95 150 13 1443 0.86 95.82 :1 5 1448 0.33 96.15 170 7 1455 0.46 96.61 180 i* 96.81 190 3 1458 0.20 200 3 1461 0.20 97.01 3 1464 0.20 97.21 210 1 97.28 220 1 1 1465 0.07 230 1 1466 0.07 97.34 240 2 1468 0.13 97.48 250 0 1468 0.00 97.48 260 1 1469 0.07 97.54 2 1471 0.13 97.68 270 0 1471 0.00 97.68 280 1 97.B1 290 1 2 1473 0.13 300 if 4 1477 0.27 98.07 310 3 1480 0.20 98.27 8 1488 0.53 98.80 320 if 99.07 330 i 4 1492 0.27 340 1# 5 1497 0.33 99.40 350 1 2 1499 0.13 99.54 360 3 1502 0.20 99.73 370 3 1505 0.20 99.93 390 11 0 1505 0.00 99.93 0 1505 0.00 99.93 390 1 1506 0.07 300.00 400 1 1 100.00 410 0 1506 0.00 0 1506 0.00 100.00 420 1506 0.00 100.00 430 0 100.00 440 0 1506 0.00 0 1506 0.00 100.00 450 1506 0.00 100.00 460 0 100.00 470 0 1506 0.00 490 1 0 1506 0.00 100.00 1506 0.00 100.00 490 1 0 100.00 5001 1506 0.00 ...- ---- 4---. --.-...... ------4--- f --.. -..-- 2 4 6 8 10 12 14 16 19 20 22 24 26 28 30 PERCENTAGE

91 FIGURE 3-10. 19889-9 BRAIDWOOD STATION IMPINGEMENT STUDY - LENGTH FREOUENCIES -..----.------...... ------SPECIES CODE:ROCK BASS ------PERCENTAGE OF LENGTH LENGTH TOTAL LENGTH (am) CUm CUm MIDPOINT FREG FRED PERCENT PERCENT t0 1 1 0.09 0.09 20 1 0 1 0.00 0.09 30 14 3 4 0.26 0.34 40 Iu#*f*f*ffi 60 64 5.15 5.50 50 *.;e.'#iise'i*** 123 187 10.57 16.07 60 **** e* efO*a*"If#* 1HII*II*e*t**** ffoI*eoI*I*fefe 348 535 29.90 45.96 70 * 4* #O* ,H* HiI*** &f****** #******** * ,.I********* 337 072 28.95 74.91 90 IuIhfi* ..f4*,*flf** ,*** ; 181 1053 15.55 90.46 90 ifm* 30 1083 2.59 93.04 100 i*fm 24 1107 2.06 95.10 110 1nef 17 1124 1.46 96.56 120 it 4 1128 0.34 96.91 130 it 3 1131 0.26 97.16 140 : 2 1133 0.17 97.34 150 If 4 1137 0.34 97.68 160 l* 3 1140 0.26 97.94 170 i: 3 1143 0.26 90.20 1o0 if 5 1148 0.43 98.63 190 4* 9 1157 0.77 99.40 200 1 2 1159 0.17 99.57 210 1# 4 1163 0.34 99.91 220 0 1163 0.00 99.91 230 0 1163 0.00 99.91 240 0 1163 0.00 99.91 250 0 1163 0.00 99.91 260 1 1 1164 0.09 100.00 270 1 0 1164 0.00 100.00 280 s 0 1164 0.00 100.00 290 1 0 1164 0.00 100.00 300 0 1164 0.00 100.00 310 i 0 1164 0.00 100.00 320 0 1164 0.00 100.00 330 0 1164 0.00 100.00 340 1 0 1164 0.00 100.00 350 0 1164 0.00 100.00 360 0 1164 0.00 100.00 370 1 0 1164 0.00 100.00 380 1 0 1164 0.00 100.00 390 1 0 1164 0.00 100.00 400 0 1164 0.00 100.00 410 0 1164 0.00 100.00 420 0 1164 0.00 100.00 430 0 1164 0.00 100.00 440 1 0 1164 0.00 100.00 450 0 1164 0.00 100.00 460 1 0 1164 0.00 100.00 470 1 0 1164 0.00 100.00 480 1 0 1164 0.00 100.00 490 t 0 1164 0.00 100.00 500 1 0 1164 0.00 100.00 ...------4------.....4---...--4--- -. -4. .. 4----- 4---+ 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 PERCENTAGE

92 a

FIcURE 3-11. 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY - LENGTH FREOUENCIES . ...------SPECIES CODE=SHALLHOUTH BASS ------

PERCENTAGE OF LENGTH LENGTH TOTAL LENGTH (on) cum cum MIDPOINT FREO FREG PERCENT PERCENT 10 0 0 0.00 0.00 20 0 0 0.00 0.00 30 0 0 0.00 0.00 40 0 0 0.00 0.00 50 1 0 0 0.00 0.00 60 u*n. 15 15 2.86 2.86 70 :,,,,,,,..,,gn.. 47 62 8.97 11.93 80 * ...... ,,,o...,,,,,,,,.,,,..,.,* i101** 172 20.99 32.82 90 unHnn*n*u*u.Hnn,,************ 126 298 24.05 56.07 200 1*H**tttl*t IHIl 94 392 17.94 74.91 110 *tltlleHelleel 64 456 12.21 87.02 120 .nu***** 30 486 5.73 92.75 130 lill 12 498 2.29 95.04 140 21" 9 507 1.72 96.76 150 !*i 7 514 1.34 98.09 160 if 2 516 0.38 98.47 170 : 1 517 0.19 98.66 o80 if 2 519 0.38 99.05 190 i 0 519 0.00 99.05 200 0 519 0.00 99.05 210 0 519 0.00 99.05 220 0 519 0.00 99.05 230 1 1 520 0.19 99.24 240 0 520 0.00 99.24 250 0 520 0.00 99.24 260 0 520 0.00 99.24 270 0 520 0.00 99.24 280 0 520 0.00 99.24 290 1 1 521 0.19 99.43 300 ' 1 522 0.19 99.62 310 1 0 522 0.00 99.62 320 1 523 0.19 99.81 330 0 523 0.00 99.81 340 0 523 0.00 99.81 350 2 0 523 0.00 99.81 360 1 0 523 0.00 99.81 370 1 524 0.19 100.00 380 0 524 0.00 100.00 390 0 524 0.00 100.00 400 1 0 524 0.00 100.00 410 0 524 0.00 100.00 420 1 0 524 0.00 200.00 430 0 524 0.00 100.00 440 0 524 0.00 100.00 450 0 524 0.00 100.00 460 0 524 0.00 200.00 470 1 0 524 0.00 100.00 480 1 0 524 0.00 100.00 490 1 0 524 0.00 100.00 500 2 0 524 0.00 100.00 .. - 4 ------4 ------#--- #---+---44 -- 4 --- 4 ---...... --- 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 PERCENTAGE

93 FIGURE 3-12. 1989-89 BRAIDWOOD STATION IMPINGEMENT STUDY - LENGTH FREQUENCIES. ----- ...------...... --.------SPECIES CODErLONSEAR SUNFISH ------

PERCENTAGE OF LENGTH LENGTH TOTAL LENGTH (me) cum CUm MIDPOINT FREO FREO PERCENT PERCENT 10 0 0 0.00 0.00 20 0 0 0.00 0.00 30 itEn EiJf~f~fi#IE 40 40 8.10 8.10 fiitt *##itIt ii i #*ittiti iff*~ft 221 36.64 44.74 5040 iieeiiitillitit**U*iii4iif ti 18175 296 15.18 59.92 60 lff.tfflffItff*fil 43 339 8.70 68.62 70 l*fff 12 351 2.43 71.05 90 *i ei* !!!lt! 43 394 9.70 79.76 90 itinh#iiftif 28 422 5.67 85.43 100 itttttt 27 449 5.47 90.89 110 tl'e*@#itift 26 475 5.26 96.15 120 1#l1t§# 14 489 2.83 98.99 130 W" 5 494 1.01 100.00 140 1 0 494 0.00 100.00 150 0 494 0.00 100.00 160 0 494 0.00 100.00 170 1 0 494 0.00 100.00 180D 0 494 0.00 100.00 190i 0 494 0.00 100.00 200 0 494 0,00 100.00 210 1 0 494 0.00 100.00 220 . 0 494 0.00 100.00 230 1 0 494 0.00 100.00 240 : 0 494 0.00 100.00 250 1 0 494 0;00 100.00 260 1 0 494 0.00 100.00 270 1 0 494 0.00 100.00 280 1 0 494 0.00 100.00 290 1 0 494 0.00 100.00 300 0 494 0.00 100.00 310 0 494 0.00 100.00 320 1 0 494 0.00 100.00 330 0 494 0.00 100.00 340 0 494 0.00 100.00 350 0 494 0.00 100.00 360 0 494 0.00 100.00 370 1 0 494 0.00 100.00 380 1 0 494 0.00 100.00 390 0 494 0.00 100.00 400 0 494 0.00 100.00 410 0 494 0.00 100.00 420 0 494 0.00 100.00 430 0 494 0.00 100.00 440 0 494 0.00 100.00 450 0 494 0.00 100.00 460 1 0 494 0.00 100.00 470 1 0 494 0.00 100.00 490 0 494 0.00 100.00 490 I 0 494 0.00 100.00 500 1 0 494 0.00 100.00 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 PERCENTAGE

94 0

be attributed to sexual dimorphism in size at maturity and, in turn, growth rates (Scott and Crossman 1973).

= Impinged bluegills ranged in length from 25 to 182 mm and averaged 72.5 mm (Figure 3-13). Fifty-nine percent of the impinged bluegills were YOYs between 35 and 65 mm. Bluegill was the only species in which adults (>130 mm) were fairly common (15.4 percent) in impingement collections.

Silver and shorthead redhorse greater than 140 mm were almost nonexistent in the impingement collections (Figures 3-14 and 3-15). Nearly identical percentages of these two species occurred in the 95 to 125 mm length interval, 68.8 percent for silver redhorse and 65.6 percent for shorthead redhorse. Impinged silver redhorse ranged in length from 81 to 217 mm and averaged 110.5 mm in length. Shorthead redhorse ranged in length from 35 to 379 mm and averaged 107.7 mm in length.

3.2.5 IMPINGEMENT ESTIMATES

The twelve month impingement estimate for the 1988-1989 sampling period at Braidwood Station was 53,111 fish (Table 3-27). Of this total, gizzard shad was clearly the dominant species, comprising 68.9 percent (36,608 individuals) of the annual estimate. Rock bass (5129 individuals) accounted for 9.7 percent of the annual estimate, while smallmouth bass (1594 individuals) accounted for 3.0 percent of the estimate.

Fifty-one percent (26,870 individuals) of the annual estimate occurred during a four-week period from the week of 18 December through the week of 8 January. Of the 26,870 fish estimated during this period, 25,062 (93.3 percent) were gizzard shad (Table 3-27).

The number of pallid shiners impinged was estimated because it is an endangered species. The annual estimate was 73, all of which occurred from mid-April to early June.

3.2.6 PHYSICAI/CHEMICAL MEASUREMENTS

Water temperatures measured at the Intake during the impingement study ranged from 0.0 to 31.2 C (Table 3-28). Temperatures typically showed little or no vertical variation from surface to bottom (Appendix H). Mean monthly temperatures were highest in July (25.0 C) and lowest in February (0.4 C). The greatest temperature variations occurred during April, when temperatures varied by 10.1 C over the course of the month.

Dissolved oxygen (DO) concentrations ranged between 5.9 to 17.0 mg/l during the study (Table 3-28). DO concentrations, like temperature, were typically homogeneously distributed throughout the water column (Appendix H). The highest monthly mean DO

95 FIGURE 3-13. 1988-89 BRAIDHOOD STATION IMPINGEMENT STUDY - LENGTH FREOUENCIES ...... ------SPECIES CODExBLUEG[LL ------PERCENTAGE OF LENGTH LENGTH TOTAL LENGTH (me) Cum CUm NIDPOINT FREO FREG PERCENT PERCENT Io : 0 0 0.00 0.00 ,_ 20 1 1 0.57 0.57 30 ilhtimIno"* II 12 6.29 6.96 40 I"."' i tt." I.',"'*Iil 25 37 14.29 21.14 50 .ti.,lii,.,,titt,,..ttn,,i.,ti,,,.,ini,.i,.t,,te 44 91 25.14 46.29 60 Itlltt #*i lii!tlteti*l tl!*tI 35 116 20.00 66.29 70 hilllil* 10 126 5.71 72.00 g0 IIIIIII*; 3 135 5.14 77.14 90 ifluile*t 8 143 4.57 91.71 100 iI' 2 145 1.14 82.96 110 !#*1 3 149 1.71 84.57 120 1 0 148 0.00 84.57 130 !i##n# 4 152 2.29 86.86 140 it# 2 154 1.14 88.00 150 Iifif""" 7 161 4.00 92.00 160 i*lflfll#i B 169 4.57 96.57 170 1*" 2 171 1.14 97.71 1t0 !##"' 4 175 2.21 100.00 190 0 175 0.00 100.00 200 1 0 175 0.00 100.00 210 1 0 175 0.00 100.00 220 1 0 175 0.00 100.00 230 ' 0 175 0.00 100.00 240 t 0 175 0.00 100.00 250 1 0 175 0.00 100.00 260 1 0 175 0.00 100.00 270 1 0 175 0.00 100.00 280 1 0 175 0.00 100.00 290 0 175 0.00 100.00 300 0 175 0.00 100.00 310 1 0 175 0.00 300.00 320 l 0 175 0.00 100.00 330 1 0 175 0.00 100.00 340 1 0 175 0.00 100.00 350 , 0 175 0.00 100.00 360 1 0 175 0.00 100.00 370 ' 0 175 0.00 100.00 380 1 0 175 0.00 100.00 390 : 0 175 0.00 100.00 400 1 0 175 0.00 100.00 410 i 0 175 0.00 100.00 420 1 0 175 0.00 200.00 430 1 0 175 0.00 100.00 440 1 0 175 0.00 100.00 450 0 175 0.00 100.00 460 0 175 0.00 100.00 470 0 175 0.00 100.00 490 0 175 0.00 100.00 490 0 175 0.00 100.00 500 0 175 0.00 100.00 .... ~- -.-..--~ ~ .-.--.-.--...... -..-. . .-.--. • .--- #- - - - 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 PERCENTAGE

96 FIGURE 3-14. 1988-89 DRAIDWOOD STATION IMPINGEMENT STUDY - LENGTH FREQUENCIES ...... SPECIES CDDE2SILVER REDHORSE ------PERCENTAGE OF LENGTH LENGTH TOTAL LENGTH (mm) Cum cum MIDPOINT FREO FREO PERCENT PERCENT 10 0 0 0.00 0.00. 20 0 0 0.00 0.00 30 0 0 0.00 0.00 40 l 0 0 0.00 0.00 50 0 0 0.00 0.00 60 0 0 0.00 0.00 70 0 0 0.00 0.00 80 l"I*ii *iiii 7 7 6.75 8.75 90 hII*4III**I*4 7 14 8.75 17.50 100 i*** llIlillill*if**fi il** li***i*I*ll 20 34 25.00 42.50 110 Iflh*.f** i** #flh..I**.H*E*fl...*f 18 52 22.50 65.00 120 tiiltttliltlftltttllltt*ttttl*tttttttttt 17 69 21.25 86.25 130 *'**iti* 8i*ttt8 77 10.00 96.25 140 i*f*1* 2 79 2.50 98.75 150 1 0 79 0.00 99.75 160 1 0 79 0.00 98.75 170 1 0 79 0.00 98.75 180 0 79 0.00 98.75 190 i 0 79 0.00 98.75 200 ' 0 79 0.00 98.75 210 1 0 79 0.00 98.75 220 i*f# 80 1.25 100.00 230 . 0 80 0.00 100.00 240 1 0 80 0.00 100.00 250 1 0 60 0.00 100.00 260 : 0 80 0.00 100.00 270 1 0 80 0.00 100.00 280 i 0 80 0.00 100.00 290 , 0 80 0.00 100.00 300 1 0 s0 0.00 100.00 310 0 80 0.00 100.00 320 0 80 0.00 100.00 330 1 0 90 0.00 100.00 340 1 0 80 0.00 100.00 350 0 90 0.00 100.00 360 0 so 0.00 100.00 370 0 80 0.00 100.00 380 0 80 0.00 100.00 390 0 80 0.00 100.00 400 1 0 90 0.00 100.00 410 1 0 80 0.00 100.00 420 1 0 s0 0.00 100.00 430 0 90 0.00 100.00 440 0 80 0.00 100.00 450 1 0 90 0.00 100.00 460 1 0 80 0.00 100.00 470 1 0 90 0.00 100.00 480 ' 0 80 0.00 100.00 490 1 0 80 0.00 100.00 500 : 0 80 0.00 100.00 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 PERCENTAGE

97 FIGURE 3-15. 1998-99 JRAIDWOOD STATION IMPINGENENT STUDY - LENGTH FREGUENCIES ...... ------SPECIES CDDErSHORTHEAD REDMORSE ------PERCENTAGE OF LENGTH LENGTH TOTAL LENGTH (as) CUm CUm NIOPOINT FREO FRED PERCENT PERCENT 10 1 0 0 0.00 0.00 20 1 0 0 0.00 0.00 30 I*m ! 1 0.84 0.94 40 1 0 I 0.00 0.84 50 m0* 2 3 1.68 2.52 60 i*fi**Iitfff# 8 11 6.72 9.24 70 oso'**f**.*' 9 20 7.56 16.81 80 :###Iml 4 24 3.36 20.17 90 t11i ttttl 6 30 5.04 25.21 100 lllttltttltttHltttt 17 47 14.29 39.50 Ito 1#.nHEIIOHHff~funHEI##,,HH fffffon...o,,unn.H#n;. 32 79 26.89 66.39 120 IHItttHtHItlttittttttt ,tttt. ttttti 29 108 24.37 90.76 130 o 7 115 5.98 96.64 140 M# 2 117 1.68 98.32 150 0 117 0.00 99.32 160 0 117 0.00 99.32 170 1 0 117 0.00 98.32 t80 0 117 0.00 98.32 190 0 117 0.00 99.32 200 0 117 0.00 98.32 210 1 0 117 0.00 98.32 220 1 0 117 0.00 98.32 230 1 0 117 0.00 98.32 240 1 0 117 0.00 96.32 250 0 117 0.00 9B.32" 260 0 117 0.00 99.32 270 0 117 0.00 98.32 260 1 0 117 0.00 98.32 290 0 117 0.00 98.32 300 , 0 117 0.00 98.32 310 :# 1 118 0.84 99.16 320 ' 0 118 0.00 99.16 330 1 0 118 0.00 99.16 340 0 118 0.00 99.16 350 0 119 0.00 99.16 360 0 i18 0.00 99.16 370 1 0 118 0.00 99.16 380 W" 1 119 0.84 100.00 390 0 119 0.00 100.00 400 0 119 0.00 100.00 410 1 0 119 0.00 100.00 420 0 119 0.00 100.00 430 0 119 0.00 100.00 440 0 119 0.00 100.00 450 ' 0 119 0.00 100.00 460 0 119 0.00 100.00 470 0 119 0.00 100.00 480 1 0 119 0.00 100.00 490 1 0 119 0.00 100.00 500 1 100.00 ...... ---4 4---4--- -4--..-- ..-- ..--.-- ..--- ..-- --- .--- .--- .--- 0 119 0.00 2 4 6 8 10 12 14 16 19 20 22 24 26 29 30 PERCENTAGE

98 TABLE 3-27. WEEKLY ESTIMATED IMPINGEMENT OF SELECTED SPECIES AND TOTAL CATCH AT THE BRAIDWOOD STATION. 1988-1989

Gizzard Smallmouth Week of shad Rock bass bass Total

9 October 2,225 4 7 2,246 16 478 2 12 508 23 679 35 37 813 30 223 88 7 355 6 November 243 51 0 348 13 193 68 27 461 20 1,867 152 21 2,300 27 1,496 146 14 1,774 4 December 531 96 14 739 11 312 50 7 419 18 3,081 200 10 3,425 25 11,148 59 2 11,284 1 January 5,746 384 100 6,403 8 5,087 156 156 5,758 15 755 189 78 1 ,426 22 577 204 65 1,054 29 503 112 50 837 5 February 986 176 85 1,599 12 168 133 54 548 19 63 133 51 573 26 12 38 38 182 5 March 19 902 283 1,919 12 22 361 102 1,181 19 5 599 61 1,386 26 0 152 59 386 2 April (17) * (134) (35) (402) 9 35 117 12 418 16 70 105 35 1,330 23 5 26 16 122 30 0 49 12 277 7 May 0 5 5 151 14 2 14 7 107 21 2 10 15 102 28 0 61 46 571 4 June 2 5 15 151 11 2 16 0 107 18 2 7 0 82 25 0 0 0 87 2 July 0 4 7 74 9 0 7 5 54 16 0 40 18 396 23 (0) (21) 10 (207) 30 0 2 2 19 6 August 2 5 5 73 13 0 9 5 60 20 5 0 0 35 27 5 2 0 19

99 TABLE 3-27(CONT,)

Gizzard Smallmouth Week of shad Rock bass bass Total

3 September 10 0 0 108 10 (10) (0) (0) (108) 17 (9) (0) (2) (51) 24 9 0 2 51 1 October 2 0 0 25

Total 36,608 5,129 1,594 53,111 Percent of Total Catch 68.9 9.7 3.0

Values in parenthesis were based on rates from the preceding and following weeks

100 TABLE 3-28.SUMMARY OF SURFACE TEMPERATURE AND DISSOLVED OXYGEN MEASUREMENTS COLLECTED DURING IMPINGEMENT SAMPLING AT THE BRAIDWOOD STATION, 1988-1989

Temperature (C) Dissolved Oxygen (mg/i) Month Mean Range Mean Range

Oct 1988 9.7 7.0-14.0 12.3 11.1-13.8 Nov 1988 6.3 3.2- 9.0 14.4 12.0-16.2 Dec 1988 1.4 0.0- 3.4 14.6 12.6-17.0 Jan 1989 1.6 0.0- 5.5 12.5 10.8-14.7 Feb 1989 0.4 0.0- 4.0 13.0 11.8-13.8 Mar 1989 2.1 0.0- 6.5 13.1 11.2-14.4 Apr 1989 11.5 7.0-17.1 10.4 7.4-13.4 May 1989 17.1 12.8-20.4 8.7 7.9- 9.6 Jun 1989 21.3 19.0-25.4 7.5 6.1- 9.3 Jul 1989 25.0 19.2-31.2 6.8 5.9- 8.5 Aug 1989 24.7 23.2-26.6 7.6 6.2- 9.2 Sep 1989 15.3 13.4-20.0 8.5 7.2- 9.1 Oct 1989 13.5 12.9-14.5 8.9 7.7- 9.5

101 value occurred in December (14.6 mg/I) with the lowest monthly mean value being measured in July (6.8 mrg/I). The greatest DO differential occurred during April when DO values varied by 6.3 mg/l over the course of the month.

Intake velocities were measured on 13 April and 1 June (Table 3-29). The river flow on 13 April was 7,060 cfs. On this date, the mean velocity was 0.34 ft/sec in the upstream bay and 0.39 ft/sec in the downstream bay. Intake velocities on 13 April were highest at the surface. River flow data for 1 June are not presently available from USGS. On this date, the mean velocity in the upstream bay was 0.29 ft/sec compared to 0.32 ft/sec in the downstream bay. Intake velocities on 1 June were highest at 2 meters. (Table 3-29).

102 I I

TABLE 3-29 CURRENT VELOCITIES AT THE INTAKE OF THE BRAIDWOOD STATION ON THE KANKAKEE RIVER.

River Flow Intake Flow Velocity (ft/sec) Date (cfs) (cfs) Depth (m) Upstream Bavy Downstream Bay

13 April 1989 7,060 104 SUR 0.47 0.70 0.55 0.49 0.70 0.58 0.48 0.20 1.0 0.21 0.60 0.63 0.58 0.55 0.82 0.35 0.15 2.0 0.00 0.09 0.54 0.45 0.32 0.72 0.18 0.00 2.7 0.00 0.00 0.12 0.07 0.38 0.59 0.00 0.20

1 June 1989 107 SUR 0.40 0.20 0.20 0.15 0.10 0.20 0.05 0.00 1.0 0.50 0.30 0.40 0.00 0.20 0.65 0.50 0.00 2.0 0.80 0.45 0.45 0.10 0.50 0.97 0.15 0.15 3.0 0.25 0.20 0.10 0.10 0.90 0.75 0.00 0.00

* Data not available from USGS.

1-. 4. DISCUSSION

4.1 ICHTHYOPLANKTON DRIFT

4.1.1 Kankakee River

Previous ichthyoplankton studies in the Kankakee River have been conducted by Westinghouse (1973; 1975), Bergman (1978), Bergman and Hutton (1979), and Bergman et al. (1980). Due to different sampling locations and gear types, comparisons are appropriate only among 1978, 1979, and 1988. Furthermore, 4 periods (dawn, day, dusk, night) were sampled during each 24-hour interval in 1978 and 1979, whereas only two periods were sampled in 1988 (day and night). Thus, only the day and night data collected in 1978 and 1979 was compared with the results of the current study.

Comparisons among taxa that comprised 1.0 percent or more of the catch during at least one of the three study years are as follows:

Relative Abundance (%)

1978 1979 1988

Darters (all taxa) 6.4 24.0 11.5 Catostomidae (all taxa) 11.8 25.1 32.6 Carp 3.7 7.1 18.0 Cyprinidae (except carp) 38.5 19.0 26.4 Lepomis sp. 6.3 3.9 5.7 Rock bass 1.0 1.8 1.6 Channel catfish 23.1 12.9 1.0 Stonecat 7.0 5.2 0.7

The relative abundance of catostomids and carp was greater in 1988 than has been reported previously, whereas the relative abundance of channel catfish and stonecat was much lower in 1988 than in 1978 or 1979. All other taxa were of similar abundance among the 3 years compared. The mean density of larvae collected in 1988 was comparable to densities in 1978 and 1979:

Mean Density (No./10m 3)

1978 1979 1988 0.62 0.78 0.85

104 Similarly, Bergman et al. (1980) reported that larval density in the Kankakee River was about 3-fold higher at night than during the day, just as was found to be the case in 1988 (Section 3.1.1).

4.1.2 Horse Creek

Previous ichthyoplankton studies were conducted in Horse Creek during 1972, 1974, 1977, 1978, and 1979 (Westinghouse 1973 and 1975; Bergman 1978; Bergman and Hutton 1979; and Bergman et. al. 1980). Due to the sparse data available in 1972 and 1974, comparisons are appropriate only between the 1977-1979 and 1988 data. Furthermore, several differences in sampling methodologies exist that need to be considered when making such comparisons. In 1977, four replicate samples were collected during the day and at night using a bongo net. In 1978, four replicate night samples were collected using a bongo net. Also in 1978, single samples were collected during four diel periods (dawn, day, dusk and night) using the square-frame sampler that was used in all future studies. In 1979, four replicate samples were collected during each of four die] periods. In 1988, four replicate day and four replicate night samples were collected. The 1977 data is presented as originally reported; whereas, only selected data from 1978 and 1979 (i.e. only day and night diel periods) is used for comparisons.

Comparisons among taxa that comprised 1.0 percent or more of the catch during at least one of the four study years are as follows:

Relative Abundance (%)

1977 1978 1979 1988

Darters species 16 .3(a)12 .9 15.5 4.6 Catostomidae 3.9 36.4 42.6 73.6 Carp - 0.9 1.4 0.1 Cyprinids 34.0 40.8 33.5 17.4 L&Romis sp. 37.5 - 1.3 2.1 Rock bass 8.3 6.1 4.1 1.2 Smallmouth bass - 1.7 0.8 0.5

(a) Reported as Percidae

The relative abundance of catostomids in 1988 was much greater than has been reported previously, whereas, all other taxa, except Lepomis sp. were lower in relative abundance in

105 1988 than in 1977-1979. The mean density of larvae collected in 1988 was two to three times higher in 1988 than in 1977-1979:

Mean Density (No./10m 3 )

1977 1978 1979 1988 3.30 5.48 4.22 10.76

The difference in mean densities is primarily due to the higher density of catostomids in 1988:

Density (No./10m 3)

1977 1978 1979 1988

Darters species 0.54 (ab.70 0.65 0.47 Catostomidae (all taxa) 0.13 1.99 1.80 7.83 Carp - 0.05 0.06 0.02 Cyprinids (except carp) 1.12 2.24 1.41 1.97 Lepomis sp. 1.24 0.05 0.24 Rock bass 0.27 0.33 0.17 0.13 Smallmouth bass - 0.09 0.03 0.06

(a) Reported as Percidae

The density of all predominant taxa in 1988, except catostomids, is either lower than or similar to the previous studies.

In 1988, we found that the mean density during the night was more than 60 times higher than during the day. Bergman et al. (1980) reported that the density at night was about 10 times higher than during the day and that the density at dusk was about 30 times higher than during the day.

4.1.3 Survival Study

The survival rate was slightly higher at the Discharge (0.75) than at the Intake (0.68). This difference is probably due to species composition. Lepomis sp. was the only taxa that was common between the two sites and it survived at nearly the same rate at the Intake (0.78) as at the Discharge (0.80). The predominance of Lepomis- with its high survival rate, accounted for the higher survival rate at the discharge.

106 Even though sample sizes for most taxa and life stages were too small for meaningful analysis, the studies at each site documented high larval fish survival. Survival rates may be even higher than reported, considering that the survival rates were calculated with no correction for collection (i.e., gear-induced) mortality. Cada and Hergenrader (1978) noted a direct relationship between observed mortality and velocity in nets, and it also has been documented that the initial survival of striped bass larvae collected with a 0.5 m, 591 urn mesh net ranged from approximately 50 percent at 15 cm/sec (0.5 ft/sec) to 0 percent at 91 cm/sec (3.0 ft/sec) (New York University 1976; O'Connor and Schaffer 1976).

Collectively, the data gathered during the survival studies suggests that approximately two- thirds of the larvae entrained at the Braidwood Station survive passage through the plant. However, no survival data are available for catostomids, one of the most frequently collected taxa (Section 3.1.1).

4.1.4 Dye Studies

An important factor which pertains to entrainment at the Braidwood Station is the proximity of Horse Creek to the intake structure. Studies by Sule and Skelly (1985) showed that Horse Creek is a very important spawning area for shorthead redhorse. They found that approximately 3,000 adult shorthead redhorse were present in a single raceway-riffle area of Horse creek on 30 April 1979. Visual observations and reports from earlier investigators (Westinghouse 1973; Berman and Hutton 1979; and Bergman et. al 1980) have indicated that the water from Horse Creek appears to stay along the plant-side (left) of the Kankakee River. Westinghouse (1973) reported that the makeup water for Braidwood cooling lake may be influenced by the chemistry and temperature of the water in Horse Creek. EA conducted two dye studies to determine the actual path followed by water from Horse Creek after it enters the Kankakee River. Both of the studies were conducted under low flow conditions (1250-1650 cfs); one with the plant pumping and one with the plant not pumping.

It appears that despite the presence of the riffle, Horse Creek contributes to entrainment at the intake. The magnitude of potential effects will largely depend on the species composition, drift densities, abundance, seasonal distribution of ichthyoplankton and size of ichthyoplankton in the Horse Creek drift. The ichthyoplankton and macroinvertebrate entrainment data collected in 1988 suggest that the species composition and abundance of organisms at the intake is comprised of drift from both Horse Creek and the Kankakee River, but is more influenced by Kankakee River drift (see Sections 3.1.1.3 and 3.1.2.3). Entrainment of Horse Creek larvae may be greatest under high flows (riffle submerged) when flows in Horse Creek are fast enough to carry larvae out of Horse Creek into the river. Under low flows (riffle exposed), ichthyoplankton will have a greater chance to stay in the deeper holes in Horse Creek, or fall out of drift in the slack water at the downstream end

107 of the riffle. When the flow in the Kankakee River was 1250 cfs and the flow in Horse Creek was 13.9 cfs, it took the dye plume about 45 minutes to travel approximately 50 meters in Horse Creek, whereas when the flow in the river was 1650 cfs and the flow in Horse Creek was 38.1 cfs, it took the plume about 15 minutes to reach the mouth.

Bergman et al. (1980) speculated that during low flow conditions (<2300 cfs), the exposed riffle channels all water from Horse Creek away from the Intake, thereby minimizing entrainment losses. However, the dye studies we conducted under low flow show that the spatial displacement caused by the riffle is only temporary and that water coming out of Horse Creek is redirected towards the Intake as soon as it reaches the downstream edge of the riffle.

4.2 MACROINVERTEBRATE DRIFT

4.2.1 Kankakee River

Previous macroinvertebrate studies in the Kankakee River have been conducted by Bergman (1978), Bergman and Hutton (1979), and Bergman et. al. (1980). The 1977 study included only natural substrate sampling (Ponar grabs), whereas the 1978 and 1979 studies included both natural and artificial substrate (Hester-Dendy samplers) sampling. Although no previous studies have utilized drift sampling (as was done in 1988), we feel some general comparisons can be made between the artificial substrate sampling in 1978 and 1979 and the drift sampling in 1988. We feel such comparisons are appropriate because artificial substrates depend on the drift as the source of macroinvertebrates to colonize the samplers. The 1988 data are based on macroinvertebrates present in the drift from 19 April through 13 September. These data are compared below with artificial substrate data from the spring and summer exposure periods of 1977 and 1978. The 1977 samplers were retrieved on 25 May (spring) and 1 September (summer), each after a two month exposure period. The 1978 samplers were retrieved on 20 June (spring) and 31 August (summer), each after a two month exposure period. Thus, the time of year for which the comparisons are being made are similar.

Comparisons of the relative abundance of the dominant taxa collected from the Kankakee River in 1978, 1979, and 1988 are as follows:

108 Relative Abundance 1988 1979 1978 Taxa (19 APR - 13 SEP) DriLn Summer Sg"nn Summer

Oligochaeta 7.4 0.9 2.2 3.0 2.2 Ephemeroptera(other) 30.0 5.7 10.1 10.2 6.3 Baetidae 16.0 8.3 6.2 6.9 11.3 Heptageniidae 12.5 13.4 24.8 6.7 32.9 Trichoptera (other) 2.4 0.5 1.3 0.5 3.3 Hydropsychidae 1.1 45.9 30.1 4.6 15.9 Simuliidae 0.1 0.4 4.4 39.1 0.4 Chironomidae 17.2 17.9 16.8 26.3 21.3 Other 13.3 13.2 15.5 2.7 6.2

The spring 1978 community was dominated by Simuliidae; in all other years this taxon was uncommon, ranging in relative abundance from 0.1 to 4.4 percent. Other important taxa in 1978 were Rheotanytarsus. Isonychia, Pseudocloeon, and Polypedilum. Mayflies of the family Heptageniidae accounted for one-third of the total number of individuals collected from the Kankakee River in the summer of 1978. This was the highest relative abundance observed for the Heptageniids. The 1979 spring and summer communities were dominated by the caddisfly Cheumatopsyche. Cheumatopsyche and other members of the family Hydropsychidae combined to account for 30.1 to 45.9 percent of the 1979 summer and spring communities, respectively. The abundance of Hydropsychidae (especially Cheumatopsyche) in 1979 was much higher than in 1978 or 1988. Other important taxa in 1979 were Rheotanytarsus Hydropsyche phalerata. Baeis Stenonema sp., a. integrum, Dicrotendipes. and Tricorythodes. The 1988 community was dominated by the mayflies, especially Caenis which was the single most abundant taxa collected and comprised 9.8 percent of the 1988 catch. Collectively, mayflies comprised 58.5 percent of the catch in 1988 which is similar to what was observed in the summer of 1978 when they comprised 50.5 percent of the catch. The mayflies of the family Baetidae had a higher relative abundance in 1988 than in 1978 or 1979. Oligochaetes were also relatively more abundant in 1988 than in 1978 or 1979, whereas chironomids were very similar among the years compared. Other important dominants in 1988 were Ephoron. Hexagenia. Heptagenia maculipennis, Batis and Pseudocloeon.

The most obvious differences in relative abundance among 1978, 1979, and 1988 were the lower abundance of hydropsychid caddisflies in 1988 and the greater abundance of "other" mayflies (e.g., Caems. Hexagenia. and Ephoron) in 1988 than in 1978 or 1979. These differences may be attributable to the difference in sampling methods (i.e., drift nets vs artificial substrate samplers) or to the difference in flows (flows in 1988 were among the lowest on record). Even through the data cannot be compared quantitatively among years,

109 species richness (i.e. number of taxa) of macroinvertebrates collected by the different methods in 1977, 1978, 1978, and 1988 is impressive:

Method 1977 1978 1979 1988 -A

Natural Substrate 158 163 163 - Artificial Substrate - 158 146 - Drift - 132

The drift samples in 1988 yielded slightly fewer taxa than either the natural or artificial substrate samples collected in 1977-79.

4.2.2 Horse Creek

Previous macroinvertebrate studies in Horse Creek have been conducted by Bergman (1978), Bergman and Hutton (1979), and Bergman et. al. (1980). Although no previous studies have utilized drift sampling (as was done in 1988), we feel some general comparisons can be made between the artificial substrate sampling conducted in 1978 and 1979 and the drift sampling conducted in 1988.

Comparisons of relative abundance among the dominant taxa collected in 1978, 1979, and 1988 are as follows:

Relative Abundance 1988 1979 1978 Taxa (19 APR - 13 SEP) ý "nn Summer gndn Summer

Oligochaeta 21.6 5.4 0.6 45.3 1.8 Ephemeroptera(other) 1.4 1.0 0.2 3.4 0.1 Baetidae 7.3 1.6 0.9 0.3 0 Heptageniidae 3.4 5.3 4.3 1.1 9.4 Caenidae 3.8 1.2 2.9 1.9 12.4 Tricorythidae 2.0 18.0 14.3 0 4.8 Trichoptera (other) 2.3 1.4 6.1 1.5 0.8 Hydropsychidae 1.5 3.3 7.7 <0.1 0 Chironomidae 29.2 54.9 57.5 43.9 31.5 Other 27.5 7.9 5.5 2.5 39.2

With the exception of the mayfly family Baetidae and midges in the family chironomidae the relative abundance values in 1988 fall within the range of values reported previously.

110 Chironomidae and Oligochaeta dominated the Horse Creek benthic community in 1978 and 1988, while Chronornidae and Tricorythidae were the dominants in 1979.

A higher relative abundance of Tricorythidae and Chironomidae was observed in 1979 than in 1978 or 1988. Conversely, Oligochaeta abundance was lower in 1979 than in 1988 or the spring of 1978. The relative abundance of Heptageniidae, Caenidae, and Trichoptera was typically similar among years.

The number of taxa collected during natural substrate, artificial substrate, and drift macroinvertebrate studies in 1977-1979 and 1988 is as follows:

Method 1977 1978 1979 1988

Natural Substrate 76 48 69 - Artificial Substrate - 108 103 - Drift - 107

In contrast to what was observed in the Kankakee River, the Horse Creek drift and artificial substrate samples yielded many more taxa than did the natural substrate samples.

4.3 IMPINGEMENT

In 1980-1981, an impingement study was conducted from 1 December through 18 February (CeCo 1981). Data from the 1980-81 study are compared herein with data from a similar time period (4 December - 23 February) during the 1988-89 study. For these similar periods, 31 species were collected in 1980-1981 compared to 42 species in 1988-1989. Pumpkinseed and redear sunfish were reported in 1980-1981 but were not present during the 1988-1989 study. Twenty-two species were common between the two studies. In 1980- 1981, a total of 36 impingement collections made during the period 1 December - 18 February resulted in a catch of 466 fish. From 4 December 1988 - 23 February 1989, 34 impingement collections resulted in the collection of 11,705 fish.

Total fish impingement for the period December 1, 1980 through February 21, 1981 was estimated to be 1,201 individuals. The estimated number of fish impinged was 635 in December, 318 in January and 249 through the third week of February (CeCo 1981). Total fish impingement for the period December 4, 1988 through February 23, 1989 was estimated to be 34,065; a 30-fold increase over the previous study. The estimated number of fish impinged was 15,867 in December 1988, 15,468 in January 1989, and 2,720 through the third week of February 1989. The difference in estimated impingement numbers was due to the much greater abundance of gizzard shad in 1988-1989. In the 1980-1981 study, the estimated

ill number of gizzard shad was 4.6 individuals (0.4 percent) compared to 28,957 individuals (85.0 percent) in the total catch for 4 December 1988 through 23 February 1989.

The population of gizzard shad in the Kankakee River in 1988 was the highest recorded since the Braidwood Aquatic Monitoring Program began in 1977 (Larimore and Peterson 1989). The high population in the river corresponds to peak abundance in the Braidwood Cooling Lake. Miller (1989) reported that the 1988 catch of gizzard shad in the cooling lake was the highest ever recorded and also noted that spawning success was excellent. The findings of Miller in conjunction with our observation that gizzard shad was the dominant species in the discharge (see Section 3.1.1.4) suggests that recruitment from the cooling lake may have been the source of the large number of gizzard shad collected in the river by the INHS and subsequently impinged at the Intake. Subsequent studies by Miller (1990) have demonstrated that the gizzard shad population in the cooling lake continues to increase and that recruitment in 1989 was excellent.

112 5. IMPACT ASSESSMENT

5.1 POTENTIAL IMPACTS TO ICHTHYOPLANKTON

Based on the extrapolations described in Section 3.1.1.8, we estimated that during the 1988 study period, the Braidwood Station entrained 5.8 million larvae and 0.7 million eggs. Under worst case conditions these estimates increase to 11.2 million larvae and 1.0 million eggs. These estimates are compared below to the estimated number of eggs and larvae drifting in the Kankakee River:

Number % Intake Intake River Worst Worst Actual Case Kankakee River Actual Case

Eggs 686,036 995,888 817,320 83.9 121.8 Larvae 5,836,638 11,234,263 37,697,167 15.5 29.8 Total IP 6,522,674 12,230,151 38,514,487 16.9 31.8

Inspection of the above data reveals that the percentage of eggs entrained is anomalously high. Since we know that eggs drift passively and we also know that there was no difference in the lateral distribution of eggs at the upstream transect (see Section 3.1.1.6), it is logical to expect that the number of eggs in the intake should be proportional to the amount of water that the Intake withdraws from the river. For example, even at the plant's maximum pumping rate (50,000 gpm), it uses only about 20 percent of the river flow at low flow conditions (i.e., 500-600 cfs). Therefore we would predict that the number of eggs in the Intake would be less than 20% of the number of eggs in the river. However, as is shown above, the percentage under the actual case is 83.9, while the worst case estimate actually exceeds 100%. There are at least two possible explanations of this anomalous situation; either the number of eggs in the Kankakee River drift is supplemented significantly by the contribution from Horse Creek or spawning is taking place in or immediately upstream of the Intake. Since Horse Creek accounted for less than 50,000 eggs during the entire study period (see Table 3-10), its contribution can not account for the number of eggs observed at the Intake. We conclude therefore that spawning probably took place in the area of the Intake and that some of these eggs were drawn into the Intake. However, we can not rule out the possibility that the high number of eggs at the Intake was caused by some factor we have not considered. Our proposed explanation that the number of eggs is high because of spawning near the Intake is plausible biologically because there is a large, deep slack-water area between the Intake and the riffle near the mouth of Horse Creek (see Figure 3-6). This area probably serves as a spawning area for species that prefer to spawn in areas off the main current (e.g., carp, Lepomis. and many cyprinids). We conclude that egg

113 entrainment may have had an effect on a variety of fish species, but would most likely effect those spawning immediately upstream of the plant. However, any effects will probably be restricted to that portion of the population near the Braidwood Station.

To determine whether the loss of 15.5 to 29.8% of the larvae in the Kankakee River is cause for concern, several factors must be considered: (1) the size of larval population, (2) the percent of that population "at risk", (3) natural mortality rates, (4) the biology and ecology of individual species or taxa, (5) population data on adult fish in the Kankakee River, (6) the representativeness of the 1988 data, and (7) the contribution from the discharge. Each of these factors is discussed below.

Larval Population Size

First it is important to note that the numerical estimate at the upstream transect is based on that portion of the larval community susceptible to collection using drift nets. For taxa that actively enter the drift (e.g., most catostomids, cyprinids, and percids), the estimates we have derived are probably quite reasonable. However, the abundance of species or taxa that rarely or only occasionally enter the drift (e.g., most centrarchids, particularly smallmouth bass and rock bass, ictalurids, and esocids) will be greatly underestimated. Second, the larval population measured at the upstream transect represents only a portion of the larvae in the river because of the contribution from tributaries. For example, in this study we documented that a stream as small as Horse Creek contributed over 4 million larvae, approximately 10% of the number at the upstream transect. In the Illinois portion of the Kankakee, there are six tributaries that are approximately the size of Horse Creek, each of which probably contributes a number of larvae comparable to that from Horse Creek. The Iroquois River, when it joins the Kankakee at Aroma Park, is comparable in size to the Kankakee and undoubted contributes greatly to the larval fish population in the Kankakee. Although larvae from these other sources (except Horse Creek) probably do not materially affect the drift near the Braidwood Station, they do serve to supplement larval fish populations in the Kankakee River and need to be considered.

Population at Risk

As discussed by Goodyear (1977), the percent loss at any fixed point on a riverine system (e.g., at the Braidwood Station), should be adjusted to account for that portion of the population that is not at risk via entrainment. For our purposes, we will limit the area that serves as a potential source of recruitment to that portion of the Kankakee River that lies in Illinois. This distinction is not merely geographical. The Kankakee in Illinois is a meandering, well vegetated stream, with predominantly rocky substrates; whereas, in Indiana, the Kankakee is a straight channelized stream; nearly devoid of vegetation, with sand substrates. These differences in substrate and morphology result in very different fish

114 communities in Illinois compared to Indiana (Brigham et al. 1978, Seegert 1987). The Illinois portion of the Kankakee is approximately 58 miles long. Of this, 25% (14.5 miles) is located downstream of the Braidwood intake and larvae produced here would not be "at risk". Similarly, larvae in the 42% (24.5 miles) of the river upstream of the dam in Kankakee are probably not at risk. Thus, correcting for the proportion of larvae originating outside of the influence of the plant yields the result that .33 (1.0-.25-.42) of the larvae are within the influence of the plant. Therefore, the percent reduction in the total number of larvae produced in the Illinois portion of the Kankakee River, attributable to operation of the Braidwood Station becomes 5.1 (15.5% x .33) under the actual case scenario and 9.8 (29.8% x .33) under the worst case scenario. These values suggest that impacts to the populations(s) as a whole are unlikely.

Natural Morality Rates

Mortality rates are high in early life stages of fish; large numbers of eggs and larvae are produced to compensate for these high rates. Survival rates vary according to life stage (i.e., egg, yolk-sac larvae, postlarvae) and species. Unfortunately, data are available for only a few species. Dahlberg (1979) reviewed this topic and reported mortality rates of 97-98% for northern pike, yellow perch, and white sucker from the egg through the post-larval stage, and >99.9% mortality for walleye during the same period. Mortality during the larval stage only was reported to be 83 and 97% for northern pike and walleye, respectively (Dahlberg 1979). Given the fact that 90% or more of the larvae entrained would die anyway before even becoming juveniles, it seems unlikely that the loss of 5.1 to 9.8% on a system wide basis will have a significant impact. The loss of 15.5 to 29.8% of the local population is not so easily dismissed, however.

Biological Factors

Although we can not assign risk on an absolute basis, it is possible to list and rank species or taxa based on several biological or ecologial criteria (Table 5-1). Inspection of the information presented in Table 5-1 suggests that the groups or species least likely to be affected are: (1) catostomids and gizzard shad which are abundant, fecund, and are entrained less frequently than expected; and (2) centrarchids, esocids, and ictalurids because they are not susceptible to the drift and/or have abundant populations in the river. Cyprinids appear on each side of Table 5-1. In our judgement, high fecundity rates and their abundance suggest that impacts to the common cyprinids of the river (i.e., spotfin shiner, rosyface shiner, sand shiner, and bluntnose minnow) are unlikely. However, impacts to rare or uncommon cyprinids are possible, particularly to those restricted to the lower Kankakee River (e.g. pallid shiner and ghost shiner). Darters are the group most likely to be impacted by Braidwood entrainment because they have relatively low populations to begin with, produce relatively few eggs, and are disproportionately represented in the drift.

115 TABLE 5-I. COMPARISON OF SPECIES AND TAXA MOST AND LEAST LIKELY TO BE IMPACTED BY ENTRAINMENT

Species or Taxa Most Likely Species or Taxa Least Likely to be Impacted to be Impacted

1) Those whose abundance is dispro- 1) Those whose abundance is dispro- portionately high in the entrain- portionately low in entrainment ment samples: Cyprinids (except carp) samples: Catostomids Percina spp. Gizzard shad

2) Those that enter the drift regularly 2) Those that are abundant in the and produce comparatively few eggs: river and/or have high fecundity Most darters rates: Most cyprinids 3) Those that are rare or uncommon and Many catostomids and largely restricted to the lower centrarchids Kankakee: Pallid chub Gizzard shad Ghost shiner Mimic shiner 3) Those that rarely enter the driFt: MicroDterus SpD. Rock bass Esox spp. Ictalurids

116 The pallid shiner (chub) is an endangered species whose distribution was originally thought to be restricted to a small portion of the Kankakee River near the Braidwood Station (Skelly and Sule 1983), but has since been shown to be more widespread, though apparently still restricted to the lower Kankakee (EA 1989 [Appendix E]; EA 1990). Our impingement studies showed that a number of pallid shiners were impinged from late April through early June 1989 suggesting that some pallid shiner eggs and larvae could have been entrained in 1988. The number can not be quantified, however, because the larvae of this species are undescribed.

Although little is known about the reproductive biology of the pallid shiner, it seems likely that the populations occurring several miles upstream of the plant (see Appendix E) represent spawning (breeding) populations that are physically separate from those near the Braidwood Station. As such, larvae from these upstream populations are probably not at risk via entrainment.

Comparisons to Field Studies

Any losses in the 1988 cohort will not be detectable until 1989 and beyond. Field data collected in 1989 does not reveal any evidence that species or groups near the Braidwood site were impacted by the rate of entrainment that prevailed in 1988. The Illinois Natural History Survey (INHS) has been sampling adult fish populations in the Kankakee River near Braidwood annually since 1977. Their data are still in draft form but their 1989 total catch was the 4th highest to date (by number) and the 3rd highest to date (by weight). In 1989, we (EA 1989, Appendix E) conducted a seining survey of the Kankakee River to determine the abundance and distribution of the pallid shiner. Although the abundance of other species was not quantified, we noted that the river contained an exceptionally rich fish fauna and that the abundance of many species was extremely high. Importantly, we also documented that the pallid shiner was both more common and widespread than previously thought. Collectively, the results of the two 1989 field studies do not suggest any impacts to the 1988 year class. To the contrary, our data and that collected by the INHS suggest that 1988 produced exceptionally strong year classes for a variety of species: gizzard shad, ghost shiner, mimic shiner, golden redhorse, rock bass, and smallmouth bass.

Representativeness of the 1988 Data

1988 was a&year that produced record low flows on many midwestern streams. The Kankakee was no exception as monthly average flows were < 1000 cfs for the period June through September (Table 5-2). These extremely low flows approdimated worst case conditions in terms of the percent of the river withdrawn by the plant. Therefore, we conclude that entrainment losses in other years will probably be considerably less than those

117 TABLE 5-2. COMPARISON OF MEAN MONTHLY FLOWS FOR THE PERIOD APRIL THROUGH SEPTEMBER, 1977-1988.

Year Jun Jul Aua

1977 6,214* 4,820 1,427 1.192 3,410 7,144 1978 12,180. 8,455 5,465 3,285 1,225 867 1979 14,160 7,740 3,351 3,112 3,989 1,250 1980 8,850 3,899 10,070 1,290 1,398 3,472 1981 9,038 15,810 1,510 6,809 5,775 5,141 1982 10,340 5,752 5,684 4,013 2,331 1.173 1983 11,680 14,320 4,536 4,190 1,380 914 1984 9,309 11,210 6,695 2,610 1,323 832 1985 11,810 3,232 2.602 1,477 2,102 1,462 1986 4,353 7,370 8,941 6.269 1,655 1.321 1937 4,965 7,270 6,179 2,272 1,692 1,580 1988 9,074 2,852 997. 467 451 729 Range 4,353-14,160 2,852-15.810 997-12,510 467-6.809 451-5,775 729-7,144 1988 9,074 2,852** 997** 467"* 45]** 729** 00

* Data from USGS gaging station at Wilmington. ** The 1988 average was the lowest among the last 12 years

I II II I observed in 1988. Furthermore, even though flow conditions in 1988 were representative of worst case conditions, the station did not pump nearly as frequently as we assumed in our worst case estimate.

Contribution from the Discharge

We determined that 1.7 million ichthyoplankton were discharged back into the river (see Table 3-15), 75% of which were alive (see Section 3.1.1.5). Therefore, about 1.3 million larvae are returned to the Kankakee River to offset the losses at the Intake.

5.2 POTENTIAL IMPACTS TO MACROINVERTEBRATES

Based on the extrapolations described in Section 3.1.1.8, we estimate that the Braidwood Station actually entrained 50 million organisms, which represents 7.6% of the drift during the study period. Under worst case conditions, the plant would have entrained 124 million organisms or 18.6% of those in the drift. Much less data are available to determine whether these entrainment levels may affect macroinvertebrate populations in the river. For example, there are no followup field data with which to make comparisons and there are no estimates regarding the natural mortality rates of individual taxa. However, as was done for the fish larvae, it is reasonable to assume that only about one-third of the mainstem Kankakee River macroinvertebrate population is at risk, and that contributions from various tributaries supplement the population in the mainstem. For example, our 'ballpark" estimate of the contribution from Horse Creek was eight million organisms.

If the actual and worst case values are adjusted to account for that portion of the population at risk, it appears that the resultant values (2.5% - 6.1%) are low enough that, when coupled with contributions from the various tributaries, impacts to the population as a whole are unlikely. Local impacts are more likely but data are insufficient to determine whether they might be significant. Since mayflies accounted for approximately half the macroinvertebrates entrained, they would be the taxa most likely to be impacted.

5.3 POTENTIAL IMPACTS TO JUVENILE AND ADULT FISH

To determine whether the loss of 53,000 adult and juvenile fish from the Kankakee River is cause for concern, several factors must be considered: (1) the percent of that population "at risk", (2) the biology and ecology of individual species, (3) the size of the fish being impinged, and (4) population data on adult fish in the Kankakee River.

We estimate that, at the most, about 38 percent of the fish population in the Illinois portion of the Kankakee River is at risk of actually being impinged at the Braidwood Station. This is the population in the 22-mile section of the river between the dam in Wilmington and the

119 dam in Kankakee. Thus, the population in well over half the river will be completely unaffected by operation of the Braidwood Station. Furthermore, a high, but unkown, percentage of the fish in the Wilmington pool will rarely, if ever, be near enough to the Braidwood Station to be impinged.

Of the 53,111 fish estimated to be impinged, 69% (36,608 fish) would be gizzard shad. This species is very prolific; Bodola (1964) found that production of 0.5 million eggs per female was not uncommon. Furthermore, 78 percent of the gizzard shad loss occurred from early December through early February. Gizzard shad impingement is usually highest during the winter at midwestern power plants (EA 1987, 1988), probably as a result of impinging winter killed individuals (Trautman 1981). Thus, the impingement of gizzard shad at Braidwood is biological insignificant. Rock bass, the second most frequently impinged species, is also prolific. The Wisconsin DNR describe it as "a very prolific fish with a tendency toward overpopulation" (WDNR 1973). The 5000 rock bass estimated to be impinged at the Braidwood Station represent the average egg production from a single adult female (Becker 1983).

It should also be noted that gizzard is not the only species that is subject to winter kill or the only one impinged in poor condition. Biologists working on the Mississippi River reported that impinged fish at the Quad-Cities Station showed a higher rate of afflictions (i.e. parasites, disease, etc.) than did fish caught by standard sampling techniques (e.g., electrofishing and netting) (LMS 1987). Biologists on the Hudson River noted that impinged fish had lower condition (k) factors than did fish caught by conventional methods (Cannon and Lauer 1976). Hlohowskyj et al (1988) examined fish impinged at two Lake Erie power plants and concluded that 30% of all impinged fish had terminal fungal and/or parasitic infections. They also found that at least 40% of all impinged fish were dead prior to being impinged and that many fish exhibited signs of post-spawning mortality or natural autumn mortality. Only 20% of the fish examined were outwardly healthy. These findings by other investigators suggest that a large percentage of the fish impinged at the Braidwood Station were already dead or would have died regardless of being impinged at the Intake. The low average velocities we measured at the Intake (-0.35 ft/sec) support this hypothesis as healthy fish should be able to avoid impingement at velocities this low.

The estimated impingement losses are also tempered by the fact that more than 90% of the fish lost (except for minnows) are either YOYs or juveniles. For example, 90% of the impinged rock bass were <90 mm and 93% of the impinged smallmouth bass were <130 mm. Thus, most of the fish being impinged by the Braidwood Station are small individuals that have naturally high mortality rates due to predation and other factors. Also, the comparatively high rates of impingement for juvenile smallmouth bass and gizzard shad are the result of exceptional year classes for these species. In most years, impingement rates of these species will probably be much lower.

120 Finally, it is reasonable to expect that if impingement by the Braidwood Station was adversely affecting fish populations, then these impacts would be manifested in lower catches during field studies conducted in 1989 near the Braidwood Station. Prelimininary data collected by the Illinois Natural History Survey show that the 1989 catch near the Braidwood Station was the 4th highest to date (out of 12 years) by number and the 3rd highest to date in terms of biomass. Catches of juvenile smallmouth bass and golden redhorse were especially high in 1989 reflecting a strong 1988 year class for these species. These high catches are not consistent with the hypothesis that impingement by the Braidwood Station significantly reduces fish populations. Other field studies conducted in 1989 also showed that the Kankakee River near the Braidwood Station possesses a diverse and abundant fish fauna (EA 1989, Appendix E).

In summary, we do not believe that the loss of 53,000 fish will have an appreciable impact on fish populations in the Kankakee River because:

(1) much of the population is not at risk; (2) it is a small number compared to the total fish population in the river; (3) more than two-thirds of this number is composed of gizzard shad; (4) of the game fish collected, almost all were young-of-the-year or juveniles; (5) no impacts were detected in either of the 1989 adult fish field studies conducted near the site; (6) the high impingement rates for gizzard shad and juvenile smallmouth bass reflect unusually high numbers of these species in the area; and (7) many of the fish impinged were probably already stressed and/or in poor condition and would not have survived anyway.

Although we do not believe impacts will occur to the fish population as a whole or to common species, it is impossible to assess whether impingement losses may affect the population of the endangered pallid shiner. Studies we conducted in 1989 (Appendix E) showed that the pallid shiner is definitely more widespread and possibly more abundant than previously thought. However, data are insufficient to determine its population size. The fact that pallid shiners were impinged only from 16 April to 10 June suggests that they may be vulnerable for only a short portion of time each year. However, this period probably corresponds to when it is getting ready to spawn because some of the females impinged were gravid and several of the males collected during our late May and early June field study were tuberculate (EA 1989). Based on these facts and considering when it spawns in the southern part of its range (Clemmer 1980), we conclude that pallid shiners in the Kankakee River probably spawn in late May or June. It is possible, therefore, that impingement may affect that portion of the pallid shiner population that resides near the Braidwood Intake.

121 However, the populations found several miles upstream of the Intake probably represent separate breeding populations (physically separate not genetically separate). If this hypothesis is correct, these upstream populations probably will not be affected by operation of the Braidwood Station.

Finally, we suspect that the population of pallid shiners in the Kankakee River is higher than previously thought, but we simply do not have enough information to assess accurately whether the estimated loss of 73 adults will affect this species.

122 6. REFERENCES

Auer, N. (ed). 1982. Identification of larval fishes of the Great lakes basin with emphasis on the Lake Michigan drainage. Spec. Pub. 82-3. Great Lakes Fishery Comm. Ann Arbor, Michigan. 744 p.

Becker, G. 1983. Fishes of Wisconsin. Univ. Wisconsin Press, Madison. 1,043 p.

Bergmann, H.W. 1978. Sec. 4 Fish egg and larvae. In "Construction and preoperational aquatic monitoring program for the Kankakee River". Braidwood Station first annual report. Ill. Nat. Hist. Surv., Urbana, Illinois.

Bergmann, H.W., and J. Hutton. 1979. Sec. 5, 1978 Fish egg and larvae study. In "Construction and preoperational aquatic monitoring program for the Kankakee River". Braidwood Station second annual report. Ill. Nat. Hist. Surv., Urbana, Illinois.

Bergmann, H., J. Hutton, R. Graham, W. Dimond, and W. Kraus. 1980. 1979 fish egg and larvae study. Section 5 in "Construction and preoperational aquatic monitoring program for the Kankakee River." Braidwood Station third annual report. Illinois Natural History Survey, Champaign, Illinois.

Bodola, A. 1966. Life history of the gizzard shad, Dorosoma cepedianum (LeSeur), in western Lake Erie. U.S. Fish Wildl. Serv. Fish. Bull. 65(2):391-425.

Brigham, A., L Suloway, and L. Page. 1981. The effects of sedimentation on aquatic life of the Kankakee River. Doc. No. 81/37. Ill. Dept. Energy and Natural Resources. Chicago, IL

Cada, G.F., and H.L Hergenrader. 1978. An assessment of sampling mortality of larval fishes. Tran. Am. Fish. Soc. 107(2): 269-274.

Cannon, T. and G. Lauer. 1976. Conceptual approaches for the evaluation of biologic impact from entrainment and impingement at power-generating stations. pp 221-240. In LD. Jensen ed. Third National Workshop on Entrainment and Impingement, EA Engineering, Science, and Technology, Inc., Hunt Valley, Maryland.

Clemmer, G.H. 1980. Notropis amnis (Hubbs and Greene), Pallid shiner. p. 224. In: D.S. Lee et al. Atlas of North American Freshwater Fishes. N.C. State Mus. Nat. Hist., Raleigh.

123 Commonwealth Edison Company (CeCo). 1981. Impingement study conducted during the filling of the cooling pond, Braidwood Generating Station. Chicago, IL

Dahlberg, M. 1979. A review of survival rates of fish eggs and larvae in relation to impact assessments. Mar. Fish. Rev. 41:1-12.

Dickson, B.C. 1988. Kankakee River fishes of the Braidwood Station Aquatic Monitoring Area, August 1987. Aquatic Biology Technical Report 88/01. Illinois Natural History Survey, Champaign.

EA Science and Technology (EA). 1987. Clifty Creek Station impingement study and impact assessment. EA, Deerfield, Illinois. 46 pp.

EA. 1988. A 316(b) study and impact assessment for the Cayuga Generating Station. EA, Deerfield, Illinois.

EA. 1989. Results of surveys to determine the distribution of the pallid chub (Hybopsis aniMI) in the Kankakee River. Prepared by EA for Commonwealth Edion Company, Chicago, IL

EA. 1990. Dresden Station Aquatic Monitoring 1989. Prepared by EA Science and Technology for Commonwealth Edison Company. Chicago, Ill.

Goodyear, C.P. 1977. Mathematical methods to evaluate entrainment of aquatic organisms by power plants. FWS/OBS-76/20.3. U.S. Fish Wildl. Serv. 17 p.

Hlohowskyj, I., A. White, and D. Loucks. 1988. The condition of fishes impinged at two Lake Erie electric generating facilities. Poster Presentation at 1988 Annual Meeting, Am. Soc. Ichthyologists and Herpetologists, Ann Arbor, Michigan.

Illinois Department of Conservation. 1989. Revised list of Illinois threatened and endangered species.

King, R.G. 1978. Entrainment of Missouri River fish larvae through Fort Calhoun Station, in Fourth National Workshop on Entrainment and Impingement (L.D. Jensen, ed.), pp. 45-56. EA Engineering, Science, & Technology, Inc., Hunt Valley, MD.

Larimore, W. and J. Peterson. 1989. Kankakee River fishes of the Braidwood Station Aquatic Monitoring Area, August 1988. INHS Aquatic Biol. Tech. Rpt. 89/1, INHS, Champaign, IL

124 LMS Engineers. 1987. Ouad Cities Aquatic Program. 1986 Annual Rpt. Chapter 2, p 2-22. Rpt prepared for Commonwealth Edison. Cordova, Illinois.

Long, W.L, and W.W. Ballard. 1976. Normal embryonic stages of the white sucker, Catostomus commersoni. Copeia (2): 342-351.

Marcy, B.C., Jr. 1976. Planktonic fish eggs and larvae of the lower Connecticut River and the effects of the Connecticut Yankee plant including entrainment, In Connecticut River Ecology Study: The Impact of a Nuclear Power Plant (D. Merriman and L. Tharpe, eds.), pp. 115-139. Am. Fish. Soc. Monograph No. 1. Miller, R. 1989. Lake periodic report for the Braidwood Cooling Lake, 1988. Illinois DOC.

Miller, R. 1990. Lake periodic report for the Braidwood Cooling Lake, 1989. Illinois DOC.

New York University Medical Center Laboratory for Environmental Studies. 1976. Mortality of striped bass eggs and larvae in nets. Spec. Rept. to Consolidated Edison Co. of New York, Inc.

O'Connor, J.M., and S.A. Schaffer. 1976. The effects of sampling gear on the survival of striped bass ichthyoplankton. A.J. Lonza Research Lab., New York University Medical Center, Tuxedo.

Scott, W.C. and E.J. Crossman. 1973. Freshwater Fishes of Canada. Bulletin 184. Fisheries Research Board of Canada, Ottawa. 966 p.

Seegert, G. 1987. Distribution of fishes in the Kankakee River basin of Indiana. Rpt. to Indiana DNR, Non-game Office, Bloomington, IN.

Skelly, T.M., and M.J. Sule. 1983. The pallid shiner, Notropis amnis Hubbs and Greene, a rare Illinois fish. Transactions of the Illinois State Academy of Science 76:131-138.

Snyder, D. 1981. Contributions to a guide to the cypriniform fish larvae of the Upper Colorado River System in Colorado. Bur. Land Mgt., Colo. Biol. Sci. Ser. No. 3.

Sule, M. and T. Skefly. 1985. The life history of the shorthead redhorse, Moxostoma macrolepidotum, in the Kankakee River drainage, Illinois. IL Natural History Survey Rpt. No. 123., Champaign, IL.

Trautman, M.B. 1981. The Fishes of Ohio. Ohio State Univ. Press, Columbus. 782 p.

125 U.S. Geological Survey, 1969, Techniques of water resources investigations of the USGS: Discharge measurements at gaging stations, Book 3, Chapter A8, USGS, Washington, D.C., 65 p.

Westinghouse Electric Corporation. 1973. Aquatic monitoring program for Braidwood Station. Tech. Rep. 270 p.

Westinghouse Electric Corporation. 1975. Aquatic monitoring program for Braidwood Station. Tech. Rep.

WDNR. 1973. Rock bass: life history, ecology, and management. Wisconsin DNR. Madison, Wisconsin.

126 APPENDIX A

PLANT OPERATING DATA

A-i SUMMARY OF BLOWDOWN VOLUMES RELEASED EACH DATE DURING THE PERIOD IN 1988 WHEN ICHTHYOPLANKTON SAMPLING WAS CONDUCTED AT THE BRAIDWOOD STATION DISCHARGE.

Day April May June 1 21.7* 20.3 19.8 2 21.8 19.5 18.8 3 21.6 20.1 19.8 4 20.9 20.2 20.0 5 20.4 19.9 20.8 6 20.9 19.8 20.5 7 20.9 19.5 20.6 8 21.1 19.2 20.6 9 20.1 21.0 21.0 10 20.3 19.2 21.3 11 20.1 19.5 21.5 12 20.0 19.4 20.9 13 20.0 19.5 21.3 14 20.0 19.3 21.3 15 20.3 19.2 20.8 16 20.7 19.6 20.7 17 20.2 19.4 21.1 18 20.3 19.4 21.2 19 20.3 21.3 20.9 20 20.5 21.8 20.6 21 20.5 21.1 20.5 22 20.-9 21.1 12.6 23 20.3 20.3 14.4 24 21.0 19.7 7.7 25 20.6 21.0 12.2 26 20.0 19.6 11.8 27 20.5 19.5 8.6 28 20.7 18.8 8.4 29 20.8 19.2 10.0 30 20.3 19.7 8.4 31 19.z

* Data are in million gallons.

A-2 SUMMARY OF VOLUMES PUMPED AND THE NUMBER OF PUMPS OPERATING EACH DATE AT THE INTAKE DURING THE BRAIDWOOD IMPINGEMENT AND ENTRAINMENT STUDY.

April 1988 May June July August September No. No. No. No, No, No. of of of of of of Day Vol.* Pumps Vol. PUMPS Vol. Pumps Vol. Pumps Vol. PUmD~s Vol. PUMPS

1 0 0 69.12 0 0 69.12 2 0 0 69.1Z 36.90 0 69.1Z 3 0 65.28 69.12 29.02 0 69.12 4 0 31.68 69.12 0 0 69.12 5 36.26 0 69.12 55.35 0 69.12 6 70.56 0 69.12 22.95 0 69.12 7 70.56 0 69.12 57.15 0 69.12 8 54.39 0 23.04 25.65 0 69.12 9 0 0 0 0 0 64.80 10 0 56.88 0 0 0 64.80 11 0 69.12 0 0 0 64.80 12 0 69.12 0 0 0 64.80 13 0 0 70.25 0 0 64.80 14 0 33.12 72.00 36.00 0 38.92 15 0 69.12 72.00 49.95 20.16 0 16 0 69.12 28.50 0 41.76 44.16 17 0 69.12 0 35.10 34.56 7.68 18 15.43 69.12 65.66 23.35 34.56 0 19 70.56 69.12 69.12 39.82 35.23 0 20 35.52 0 69.12 27.2Z 23.04 0 0 21 0 0 69.12 35.10 0 22 0 0 69.12 24.07 0 42.00 23 0 0 69.12 0 21.96 56,16 24 0 66.24 69.12 0 34.56 0 25 0 69.12 2.64 0 24.36 61.92 26 60.25 69.12 0 0 6.12 69,12 27 32.00 69.12 7.92 0 52.80 69,12 28 0 69.12 69.12 0 69.12 69.12 29 0 33.36 32.64 0 69.12 69.12 30 0 61.92 0 0 69.12 20.16 31 69.12 0 69.12 *Data are in million gallons

I L I.Ii I I

October November December January 1989 February March No. No. No. No. No. No. of of of of of of Day Vol. Pumps Vol. PUMPS Vol. Pumps Vol. Pumps Vol. Pumps Vol. ,P' mPS 1 0 69.12 31.68 0 67.68 67.68 2 0 69.12 0 7.20 28.20 26.32 3 0 58.32 0 41.76 0 0 4 0 0 0 28.80 0 0 5 9.87 0 4b.84 62.64 0 0 6 14.10 0 69.12 69.12 0 44.17 7 0 45.83 69.12 69.12 63.41 66.96 8 0 70.56 69.12 69.12 68.40 59.98 9 0 70.56 69.12 5.76 68.40 34.87 10 66.24 28.66 69.12 38.39 68.40 0 11 69.12 0 69.12 69.12 68.40 0 12 69.12 0 69.12 26.87 20.42 0 13 69.12 0 69.12 0 42.75 37.05 14 69.12 45.12 69.12 0 68.40 68.40 15 69.12 69.12 69.12 0 68.40 68.40 16 69.12 69.12 69.12 45.14 27.31 26.60 17 69.12 54.48 69.12 68.40 0 0 18 69.12 0 69.12 68.40 0 0 19 69.12 0 69.12 31.35 0 0 20 58.06 0 69.12 0 42.24 44.18 21 0 45.60 69.12 0 69.12 67.68 22 0 69.12 46.08 0 69.12 67.68 23 0 27.36 0 44.19 26.16 26.55 24 54.15 0 0 67.68 0 0 25 62.70 0 0 67.68 0 0 26 68.40 0 46.08 25.38 0 0 27 26.36 0 69.12 0 31.02 54.52 28 0 44.16 69.12 0 67.68 50.05 29 0 69.12 28.80 0 0 30 0 69.12 0 0 0 31 45.13 0 58.98 0 April May June July August September No. No. No. No. No, No- of of of of of of Day Vol. Pumps Vol. Pumps Vol. Pumps Vol. Pumps Vol. p Vol. Pumps

1 0 70.56 37.44 0 64.80 0 2 0 67.68 0 9.02 64.80 0 3 0 64.80 0 68.40 64.08 0 4 0 51.97 0 66.96 66.24 13.80 5 0 0 32.40 64.80 48.59 22.14 6 0 0 66.24 64.80 0 0 7 0 0 69.12 66.96 39.56 0 8 0 41.59 69.84 64.80 66.96 0 9 0 68.40 28.80 66.96 68.40 0 10 42.75 66.24 0 65.52 66.24 0 11 69.48 66.24 0 62.10 64.80 0 12 68.40 69.12 43.44 67.68 24.07 0 13 27.20 38.40 67.68 66.24 0 0 14 0 0 69.12 66.24 39.13 0 15 0 55.69 67.48 61.92 59.04 0 16 0 70.56 47.77 65.52 61.92 0 17 0 67.68 0 66.24 61.92 0 18 0 36.66 0 65.52 57.60 0 19 54.28 0 42.31 46.64 54.72 0 20 30.55 0 67.68 0 54.72 0 21 0 0 66.24 0 56.16 0 22 0 39.99 64.80 0 57.60 0 23 0 68.40 6.75 0 56.16 0 24 42.78 66.24 0 0 23.60 0 25 66.96 66.96 0 0 0 42.30 26 66.96 4.42 42.75 0 0 66.24 27 66.96 0 66.24 0 0 66.24 28 66.96 0 66.24 10.56 41.40 37,26 29 66.96 62.27 35.88 31.39 67.68 0 30 66.96 69.12 0 0 67.68 0 31 67.68 42.77 48.76

I 5

October No. of Day Vol. Pumps 1 0 0 2 40.42 2 3 60.48 2 4 59.04 2 5 48.95 2 6 0 0 7 0 0 8 0 0 9 36.00 2 10 57.60 2 11 59.04 2 12 32.76 2 13 0 0 14 0 0 15 0 0 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 APPENDIX B

ENTRAINMENT -- LARVAL FISH DENSITIES, 1983

B-1 CORMONNEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITENDISCHARGE ------LIFESTAGE E66 LOCATION DI TI ME DAY NIGHT )EPTH DEPTH DMID MID REP REP 2 1 2 I P[P I PER # PER 0 PER 10 13 10 D3I10 3 10 53 DATE SPECIES 17MAYBB UNIDENTIFIED - 0.4 2.5 ALL SPECIES - 0.4 2.5 - 24MAYBB SPECIES UNIDENTIFIED 0.5 0.6 1.6 1.4 ALL SPECIES 0.5 0.6 1.6 1.4 31MAY8B SPECIES UNIDENTIFIED 0.2 0.9 9.7 11.6 ALL SPECIES 0.2 0.9 9.7 11.6 07JUN8B SPECIES UNIDENTIFIED - - 0.8 0.4 ALL SPECIES - - 0.8 0.4 28JUN8B SPECIES UNIDENTIFIED 0.I - O.2 0.2 ALL SPECIES 0.I - 0.2 0.2

B-2 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE -- ..-----...... ------SITE=DISCHARGE ------LIFESTASE LARVAE LOCATION DI TItME DAY NIGH•T DDEPTH DEPT H MID MID REP REP 2 I 2 I EP# PER # PEP 1 PER PE .3 10 03 10 31 0 I120 DATE SPECIES 19APR8B UNID PERCID 0.4 0.8 - ALL SPECIES 0.4 0.8 - 26APRB8 SPECIES UNID PERCINA 0.9 0.3 0.2 0.3 ALL SPECIES 0.9 0.3 0.2 0.3 03MAY88 SPECIES 0.2 UNIDENTIFIED ALL SPECIES 0.2 IOMAYBB SPECIES GIZZARD SHAD 2.B 2.4 2.4 0.9 UNID CATOSTOMID - 0.4 UNID POMOXIS 0.5 - 0.4 0.2 UNID CENTRARCHID - 0.2 UNIT PERCINA 0.2 UNID PERCID 0.2 UNIDENTIFIED 0.2 0.4 ALL SPECIES 3.5 .4 4.1 1.3 17MAYB8 SPECIES GIZZARD SHAD 1.3 2.8 5.9 5.J UNID POMOXIS 2.8 4.0 5. 1 4.7 UNID ETHEOSIOMA -0.2 FRESHWATER DRUM 0.7 2.3 UNIDENTIFIED 1.1 0.2 1.3 (0.8 ALL SPECIES 6.0 7.93 13,6 13.1 24MAYB8 SPECIES GIZZARD SHAD 1.5 1.2 5.5 7.8 COMMON CARP 0.3 0.4 0.6 0.8 UNID RORONE 0.3 0.2 UNID POMOXIS 3.7 3.3 4.9 5.3 FRESHWATER DRUM 0.6 0.6 1.2 2.7 UNIDENTIFIED 0.2 1.2 0.6 1.2 ALL SPECIES 6.6 6.8 12.8 17.9 31HAYB8 SPECIES GIZZARD SHAD 0.9 1.3 2.0 CATOSTOMID D 0.9 UNID CATOSTOMID 0.2 BROOK SILVERSIDE 0.2 UNID POMOXIS 0.5 2.1 1.1 FRESHWATER DRUM 0.2 0.2 0.8 UNIDENTIFIED 0.2 0.2 0.9 ALL SPECIES 1.1 0.8 5.7 3.9 07JUNBB SPECIES GIZZARD SHAD 0.2 . 0.6 0.5 UNID CYPRINID - 0.2 UNID LEPOMIS 1.4 0.2 0.2 FRESHWATER DRUM 0.2 UNIDENTIFIED - 0.2 ALL SPECIES 0.2 1.4 1.2 0.9 14JUNB8 SPECIES GIZZARD SHAD - 0.4 0.3 UNID ICTIOBINAE - 0.2 UNID LEPOMIS 0.2 0.2 SMALLMOUTH BASS 0.2 UNID ETHEOSTONA - 0.2 ALL SPECIES 0.2 0.2 0.9 0.3 21JUN8B SPECIES UNID ICTALURID - 0.4 UNID LEPOHIS 0.I 0.2 - ALL SPECIES 0.1 0.2 0.4 28JUN88 SPECIES COMMON CARP - 0.2 UNID CYPRINID 0.2 WHITE CRAPPIE 0.2 B-3 UNIDENTIFIED 0.2 - All cwDiTrc h1) ") COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------.SITE=HDRSE CREEK ------LIFESTAGE EGG LOCATION HI TIME DAY NIGHT DEPTH DEPTH DOT DOT REP REP 1 2 I 2 3 4 # PER # PER I PER I PER I PER I PER 10 &3 10 0310 '1310 m3 10 a3 10 m3 DATE SPECIES 26APRB8 UNIDENTIFIED - - - 0.2 ALL SPECIES - 0.2 10MAYBE SPECIES UNIDENTIFIED 0.1 - ALL SPECIES - 0.1 - 24MAY88 SPECIES UNIDENTIFIED 0.3 - - - ALL SPECIES 0.3 - - 31MAY8B SPECIES UNIDENTIFIED 0.6 1.7 3.5 4.2 2.2 2.8 ALL SPECIES 0.6 1.7 3.5 4.2 2.2 2.8 14JUNB8 SPECIES UNIDENTIFIED - - - - 0.6 - ALL SPECIES - - 0.6 - 21JUN88 SPECIES UNIDENTIFIED - 0.9 0.2 - 0.2 ALL SPECIES 0.9 0.2 . 0.2

B-4 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE --.-----.-...... ------SITE=HORSE CREEK ------LIFESTAGE LARVAE LOCATION HI TIME DAY NIGHT DEPTH DEPTH DOT DOT REP REP I 2 3 4 1 2 3 4 I PER S PEE # PER # PEP 1 PER I PER # PER I PER 10 .3 10 m3310 3 10 @3 10 s3 10 *31 0 .3 10 03 DATE SPECIES 19APR88 UNID PERCINA 0.2 ALL SPECIES 0.2 26APR88 SPECIES UNID PERCINA - 0.2 0.4 ALL SPECIES " 0.4 03MAYB8 SPECIES . 0.8 UNID ETHEOSTOMA 0.9 1.6 UNID PERCINA 0.2 1.0 O10.6 0.8 UNID PERCID - 0.2 0.2 - ALL SPECIES 0.2 2.1 .7 2.4 10MAY8B SPECIES UNIJCYPRINID 0.3 0.I UNID CATOSTOMID 0,4 2.0 UNID ETHEOSTOMA 0.4 1.4 2.6 UNID PERCINA 0.2 0.2 0.1 0.4 0.5 UNIDENTIFIEF 0.3 ALL SPECIES 0.2 0.7 1.8 3.7 2.5 17MAYB8 SPECIES GIZZARD SHAD 0.1 UNID CYPRINID 0.2 0.2 2.1 3.0 CATOSTOMIE D 1.3 0.2 1.5 0.6 UNID ICTIOBINAE 0.2 UNID CATOSTOMID 0.2 0.5 0.2 0.6 0.6 UNID PERCINA 0.2 0.2 UNID PERCID ('.2 ALL SPECIES 1.5 0. 1 0.5 0.5 0.5 4.5 4.5 24MAY88 SPECIES COMMON CARP 0.3 0.3 1.1 1.0 GOLDEN SHINER 0.2 0.2 1.0 0.8 0.3 1.0 UNID NOTROPIS 0.3 - 0.5 SUCKERMOUTH MINNOW 0.3 1.1 1.0 FATHEAD MINNOW 0.3 0.5 0.5 0.5 UNID CYPRINID 0.2 10.3 22.7 20.9 18.7 CATOSTOMID D 0.4 0.2 50.8 76.2 63.7 30.1 UNID ICTIOBINAE 0.2 0.2 0.4 0.5 0.3 - UNID ETHEOSTOMA 0.3 0.3 1.1 0.2 UNID PERCINA 0.3 1.I - UNID PERCID 0.4 UNIDENTIFIED - 0.5 ALL SPECIES 0.7 *1.1 0.2 0.6 63.4 101.6 89.9 53.6

B-5 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198B ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ...... ------SITE=HORSE CREEK ------LIFESTAGE LARVAE LOCATION HI TIME DAY NIGHT DEPTH DEPTH BOT BOT REP REP 1 2 3 4 1 2 3 4 I PER I PER I PER I PER # PER I PER I PER # PEP 10 m3 10 m3 10 s3 10 i3 10 3 10 s3 10 s3 10 s3 DATE SPECIES 31HAYBB HORNYHEAD CHUB - - - - - 0.4 1.2 GOLDEN SHINER 0.2 - - 0,4 0.2 0.4 - UNID NOTROPIS 0.2 2- SUCKERMOUTH MINNOW FATHEAD MINNOW -0.4 - 0.2 CYPRINID N - 1.2 0.2 - UNID CYPFINID 0.4 0.4 1.3 0.2 7.2 18.0 32.4 70.6 CATOSTOMID D 0.4 0.2 1.3 1.3 192.3 119.5 304.1 209.4 UNID ICTIOBINAE - 0.2 - - - . 0.2 0.2 ROC: BASS - 0.2 0.2 2.8 3.0 SMALLMOUTH BASS - 0.2 0.2 0.2 0.6 JOHNNY DARTER - - - 0.6 RAINBOW!BANDED DARTER 0.2 0.4 0.6 - 2.0 3.5 5.1 6.5 UNID ETHEOSTOMA - 0.4 - 2.2 1.0 1.4 2.0 UNID PERCINA - 0.2 0.6 0.4 0.2 UNID PERCID 0.2 - - - - - ALL SPECIES 1.0 2.1 3.4 1.6 205.3 144.4 347.4 294.5 07JUNB8 SPECIES HORNYHEAD CHUE 1.5 0.8 0.9 0.9 GOLDEN SHINER 0.2 0.2 -4 0.2 0.2 0.2 UNID NOTROPIS - 0.2 0.4 - BLUNTHOSE MINNOW S- - 0.4 FATHEAD MINN7:W 0.4 0.4 - - CYPRINID N 1.3 0.9 0.4 0.2 UNID CYPRINID 1.. 1 2.7 1.1 NORTHERN HOG SUCKER - - 0.2 CATOSTOMID D 0.2 - 1.5 2.6 4.4 3.1 BROOK SILVERSIDE 0.2 - ROCK BASS 1.7 1.3 1.3 0.7 UNID LEPOMIS - 2.4 1.7 2.7 0.7 SMALLMOUTH BASS - 0.2 - 1.5 1. 0.7 2.2 FANTAIL DARTER 0.2 JOHNNt DARTER 1.5 0.8 1.1 0.7 RAINBOW/BANDED DARTER - 0.2 - 0.2 UNID ETHEOSTOMA - - 0.2 2.4 2.3 2.2 1.5 ALL SPECIES 0.2 0.2 0.6 17.B 13.6 17.4 12.2 14JUN88 SPECIES HORNYHEAD CHUB - - 0.2 0.2 GOLDEN SHINER 0.6 0.4 0.2 - UNID NOTROPIS - 0.2 - 1.0 1.4 1.0 CYPRINID N 0.6 0.2 0.4 0.2 UNID CYPRINID 0.6 - 0.2 - UNID CATOSTONID 0.2 - - BROOK SILVERSIDE - 0.2 - - ROCK BASS 0.8 0.6 1.6 2.4 UNID LEPOMIS - 0.6 1.6 2.8 SMALLMOUTH BASS 0.2 JOHNNY DARTER 0.2 0.4 0.2 RAINBOW/BANDED DARTER - - - 0.2 UMID ETHEOSTOMA - - 0.2 ALL SPECIES 0.2 0.2 3.0 3.3 5.B 7.1

B-6 CONMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE --- ..----...... ------.------SITEsHORSE CREEK:------LIFESTABE LARVAE LOCATION HI TINE DAY NIGHT DEPIH DEPTH SOT DOT REP REP I 2 3 4 1 2 3 4 # PER I PER I PER I PER # PER I PER # PER # PER 10 13 10 3 10 3 1031031033 10 m3 10 s3 21JUN88 SPECIES UNID NOTROPIS 0.6 0.2 - - 0.5 0.2 - 0.2 UNID CYPRINID 0.2 0.2 - - 0.9 1.2 0.4 1.9 NORTHERN HO6 SUCKER - - - - 0.2 - - YELLOW BULLHEAD - - 0.2 0.2 CHANNEL CATFISH -- - 1.7 STONECAT - - 0.2 ROCK BASS - - 0.6 0.2 UNID LEPOMIS 0.8 0.4 1.1 0.8 1.1 1.8 1.5 1.5 RAINBOW DARTER - - - 0.4 0.6 0.4 0.4 UNIDENTIFIED 0.6 - ALL SPECIES 2,1 0.B J.1 0.8 2.9 4.7 2.4 6.4 28JUNS8 SPECIES SPOTFIN SHINER - - 0.2 SAND SHINER 0.2 - - UNID NOIROPIS 0.2 0.2 0.2 0.4 0.2 0.2 UNID CYPRINID - 1.4 0.2 0.2 0.2 YELLOW BULLHEAD - - - 0.2 - UNID LEPOMIS 0.2 0.2 - 0.2 0.4 0.4 RAINBOW DARTER - - 0.2 - - - RAINBOW/BANDED DARTER 0.2 - - - - - ALL SPECIES 0.6 0.2 0.2 1.8 1.0 1.1 1.0 05JUL88 SPECIES UNID NOTROPIS 0.2 - 0.2 - 0.2 0.2 0.2 UNID CYPRINID 0.2 0.2 1.5 - 0.2 - - CHANNEL CATFISH - - - 0.2 - UNID LEPOMIS - - - 0.4 - - 0.2 ALL SPECIES 0.4 0.2 1.7 0.8 0.2 0.2 0.3 26JULB8 SPECIES SPOTFIN SHINER - - - - - 0.3 - - UNID NOTROPIS - - 0.3 - UNID CYPRINID - - 0.3 - 0.4 UNID LEPOMIS - 0.4 - 1.2 - SMALLMOUTH BASS - 0.4 - - - ALL SPECIES - 0.7 0.6 1.5 0.4 09AUGB8 SPECIES UNID CYPRINID - 0.2 0.2 0.8 0.2 - 0.4 UNID LEPONIS - - 1.0 1.7 2.0 0.6 ALL SPECIES - 0.2 0.2 1.8 1.9 2.0 1.0 23AU688 SPECIES UNID LEPONIS - - 0.2 0.2 0.4 - ALL SPECIES - 0.2 0.2 0.4 - 30AUGBB SPECIES UNID PINEPHALES - - - 0.2 ALL SPECIES - - 0.2 06SEPBB SPECIES SPOTFIN SHINER - 0.3 ALL SPECIES - 0.3

B-7 COMNONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITE:INTAKE ------LIFESTAGE E66 LOCATION 11 12 13 TIME TIME TIME DAY NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH DEPTH TOP BOT TOP BOT TOP DOT TOP DOT DOT REF REP REP REP REP PEP REP REP REP 2 1 2 1 2 2 2 1 2 1 2 1 2 I 2 # PEP I PER # PER I PER I PER I PER # PER I PER # PER # PER I PER I PER # PER # PER I PER 10 .3 10 .3 10 m3 10 @3 10 s3 10 m3 10 s3 10. 3 10 s3 10 m3 10 &3 10 m3 10 a3 10 m310 @3 DATE SPECIES 26APR88 UNIDENTIFIED 0.1 ALL SPECIES 0.1 17fAYBB SPECIES UNIDENTIFIED 8.O I1.2 - - - - ALL SPECIES 8.8 . 1.3 - - - - 24MAY88 SPECIES UNIDENTIFIEP 1.2 4.7 1.0 0.1 0.4 - 3.E 2.0 - 0.3 1.2 0.3 7.7 - ALL SPECIES 1.2 4.7 1.0 0.1 0.4 - 3.6 2.0 - 0.3 1.2 0.3 7.7 - 31MAY88 SPECIES UNIDENTIFIED ALL SPECIES 07JUN88 SPECIES UNIDENTIFIED 0.2 0.2 0.1 0.3 - - 0.3 - - - ALL SPECIES 6 2,- 0.2 0.1 0.3 - - 0.3 - - - 14JUN8S SPECIES UNIDENTIFIED ALL SPECIES 21JUNBB SPECIES UNIDENTIFIED 0Oe- ALL SPECIES -- - - 0,8 - - 0.1 28JUN8B SPECIES UNIDENTIF lED ALL SPECIES 05JUL88 SPECIES UNIDENTIFIED ALL SPECIES 19JULBB SPECIES UNIDENTIFIED - 0.1 - 0.1 ALL SPECIES * 0.1I

B-8 COMMONNEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITE:INTAKE ------LIFESTAGE EGG LOCATION 13 14 TIME TIME NIGHT NIGHT DEPTH DEPTH TOP BOT TOP B0T REP REP REP REF I I I I # PEP # PER # PEP I PER 10 m3 10m3 0 m310 .3 DATE SPECIES 26APRB8 UNIDENTIFIED - ALL SPECIES - 17MAYBB SPECIES UNIDENTIFIED - ALL SPECIES - 24MAYBB SPECIES UNIDENTIFIED . 1.0 ALL SPECIES - 1.0 - - 31AYBB SPECIES UNIDENTIFIED O.6 2.5 0.1 0.5 ALL SPECIES 0.6 2.5 0.1 0.5 07JUNBB SPECIES UNIDENTIFIED - - - 0.1 ALL SPECIES 0.1 14JUN8S SPECIES UNIDENTIFIED 0.3 ALL SPECIES 0.3 21JUN8 SPECIES UNIDENTIFIED - ALL SPECIES - 2BJUNB8 SPECIES UNIDENTIFIED 0.1 ALL SPECIES - 0.1 05JULBB SPECIES UNIDENTIFIED - (,.1 ALL SPECIES 0.1 19JUL8B SFECIES UNIDENTIFIED - ALL SPECIES

B-9 COMMONWEALTH EDISON COMPANY - RRAIDNOOD STATION - 198B ICHTHYOPLAN'TON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------.-...... ------SITE:INTAKE ------LIFESTAGE LARVAE LOCATION If 12 TINE TI7E DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP SOT TOP BOT TOP BOT TOP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 3 4 1 2 1 2 1 I PER I PEE I PER I PER I PER # EL I PER I PER I PER I PER I PER I PER I PER I PEP I PER 10 s3 10 10310m s3 10 3 10 o3 10 3 10 s3 10 e3 10 s3 10 m3 10 a3 10 3 10 3 DATE SPECIES 19APR88 UNID PERCINA 0.5 - - 0.! - 0.4 0.5 0.9 UNID STIZOSTEDION - - ALL SPECIES 0.5 0.1 - 0.4 0.5 0.9 26APR88 SPECIES UNID PERCINA 0.4 0.3 0.2 0.8 0.3 0.5 0.5 0.3 0.1 0.2 - 0.1 1.0 UNID STIZOSTEDION ALL SPECIES 0.4 0.3 0.2 0.8 0.3 0.5 0.5 0.3 0.1 0.2 0.1 1.0 03MAY88 SPECIES UNID ETHEOSTOMA - - - - 0.7 0.9 1.1 1.2 UNID PERCINA 0.3 1.3 1.0 0.7 3.3 5.4 2.4 0.9 0.5 0.6 0.2 2.4 UNID PERCID - 0.1 - - - ALL SPECIES 0.3 1.3 1.0 0.7 4.2 6.3 3.4 2.1 0.5 0.6 - 0.2 2.4 IOMAY88 SPECIES SUCKERMOUTH MINNOW - - - 0.4 - 0.1 UNID CYPRINID ------0.3 0.1 UNID ICTIOBINAE - 0.1 0.6 - - - 0.1 UNID CATOSTOMID - 0.5 0.3 0.3 0.3 UNID ETHEOSIOMA - 1.9 1.9 1.9 0.7 - 0.4 5.0 UNIO PERCINA 0.4 1.1 0.9 2.0 1.2 0.8 0.7 0.9 1.1 3.3 UNID PERCID - 0.2 - 0.1 UNIDENTIFIED ALL SPECIES 0.4 1.4 0.9 4.9 3.1 3.1 2.8 0.9 1.5 8.7 17MAY88 SPECIES COmmno!' CAFF - - ~~0.1 - - - 5.3 5.8 GOLDEN SHINER 0.2 0.2 SUCKEPMOUIH MINtNOW - 0.4 FATHEAD MINNOW 0.4 0.6 UNID CYPRINID 0.3 - - 0.8 0.6 UNID ICTIOBINAE 0.3 - 0.4 0.2 0.2 UNID CATOSTOMID RAINBOW/BANDED DARTER UNID ETHEOSTONA 0.2 UNID PERCINA 0.3 - 1.0 5.7 4.6 UNID PERCID - 0.5 UNIDENTIFIED ALL SPECIES 0.9 - 2.1 12.9 12.3 24MAYBB SPECIES COMMON CARP 1.5 1.3 0.5 14.8 29.5 0.2 0.4 4.6 HORNYHEAD CHUB - 0.1 GOLDEN SHINER 0.1 0.1 1.0 1.7 0.1 1.0 UNID NOTROPIS - 1.0 -- - 0.1 SUCKERMOUTH MINNOW FATHEAD MINNOW - 0.1 0.7 1.1 - 0.4 UNID CYPRINID 0.3 - 9.1 7.6 0.1 2.9 CATOSTOMID D - - 4.1 2.8 - - 3.2 UNID ICTIOBINAE - - 0.1 0.4 0.4 - - 1.2 UNID CATOSTOMID - 0.1 0.1 - - UNID ETHEOSTOMA - - 1.0 0.6 - - 0.1 - UNID PERCINA - - 0.9 0.2 2.3 4.1 0.1 2.9 UNID PERCID -S - 0.1 UNIDENTIFIED - 0.3 - ALI SPECIES - 1.7 2.9 1.0 34.7 47.5 0.2 0.8 16.5

B-10 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 lCHTHYDPLANVTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------.------SITE:INTAKE ------LIFESTAGE LARVAE 11 LOCATION 12 TIME TIME DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP DOT TOP BOT 7OP BOT TOP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 3 4 1 2 1 2 1 0 PER I PER I PER I PER I PER # PERP PER # PER I PER # PER # PER I PER I PER # PER # PER 10 s3 10 m3 10 s3 10 s3 10 m3 10 s3 10 s3 10310 m310m 3 10 3 10m3 10 3 10 m3 31MAY88 SPECIES UNID BAR 0.2 0.2 GIZZARD SHAD COMMON CARP 1.7 0.9 HORNYHEAD CHUB 0.2 0.5 GOLDEN SHINER 1.9 1.7 1.4 1.1 1.4 1.6 UNID NOTROPIS 2.2 1.2 0.1 SUCKERMOUTH MINNOW 0.2 0.2 0.1 FATHEAD MINNOW 0.9 0.3 0.1 CYPRINIE N - 0.3 - 0.1 UNID CYPRINID 0.1- 11.7 9.1 0.2 UNID MOXOSTOhA - 0.2 CATOSTOMID D 1.6 1.0 16.7 14.8 1,0 - 5.4 UNID ICTIOPINAE 0.3 0.6 BROOK SILVERSIDE 0.2 ROCK BASS 0.3 0.5 UNID LEPOMIS 0,2 SMAL.MOUTH BASS 0.r 0.3 UNIV POMO1IS RAINBOW DAFTEF RAINBOW/BANDD DARTER - 0.1 UNIV ETHEOSTOMA 1.3 0.3 - 0.1 UNID PEPFINA 0.1 3.0 1.4 UNID PERCID 0.2 UNIDENTIFIED ALL SPECIES 3.6 3.5 40.4 32.0 - 2.6 - 7.7 07JUNBB SPECIES GIZZARD SHAD COMMON CARP 0.3 0.4 0.7 -S - 0.1 HORNYHEAD CHUB 0.1 GOLDEN SHINER 0.5 0.1 - 0.2 - 0.4 0.2 UNID NOTROPIS 0.B 0.7 0.2 0.5 - 0.2 0.3 1.2 0.9 BLUNTNOSE MINNOW - - 0.2 - FATHEAD MINNOW 0.3 - 0.3 0.2 CYPRINID N - - 0.3 UNID CYPRINID 1.1 1.0 1.0 0.7 - 0.5 0.1 - 0.1 CATOSTOMID D 0.7 0.4 0.2 0.3 - - . 0.1 BROOk SILVERSIDE ROCK BASS - 0.2 0.! 0.2 0.3 UNID LEPOMIS . 1.0 0.9 0.7 0.7 - 0.2 0.2 0.4 0.2 SMALLMOUTH BASS - - 0.1 UNID CENTRARCHID FANTAIL DARTER JOHNNY DARTER RAINBOW/BANDED DARTER - - - 0.1 - UNID ETHEOSTOMA - 0.1 0.1 UNID PERCINA - -0.1 UNID PERCID - 0.1 UNIDENTIFIED - 0.1 0.3 - 0.2 0.2 ALL SPECIES 4.9 4.2 3.3 3.9 0.9 1.1 2.3 1.7

B-11 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 198B ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------.--...... ------SITE=IHTAKE ------LIFESTAGE LARVAE LOCATION 12 TIIHEII TIKE DAY NI6HT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 3 4 1 2 1 2 1 # PER i PER i PER I PER I PER I PER # PER I PER # PER # PER I PER # PER t PER I PER # PER 10 03 10 3 10 m3 10 s3 10t 3 10 m3 10I m3 10 o3 10 23 10 &3 10 m3 10 m3 10 m3 10 m3 10 s3 14JUNB8 SPECIES GIZZARD SHAD COMMON CARP HORNYHEAD CHU? ROSYFACE SHINER UNID NOTROPIS --- - - 1.2 - BLUNTNOSE MINNOW FATHEAD MINNOW CYPRINID N UNID CYPRINID YELLOW BULLHEAD STONECAT ROCK BASS UNID LEPOMIS ------0.1 - SMALLMOUTH BASS UNID POMOYIS JOHNNY DARTER RAINBOW/BANDED 1. DARTER UNID ETHEOSTOMA UNID PERCINA UNIDENTIFIED ALL SPECIES ------1.3 - 21JUN88 SPECIES COMMON CAPP 0.2 0.2 HORNYHEAL CHUB GOLDEN SHINEF - 0.4 0.3 - ROSYFACE SHINER UNID NOTROPIS - 0.2 1.2 0.4 0.9 1.7 0.6 BLUNTNOSE MINNOW - 0.2 FATHEAD MINNOW S0.2 - - - 0.2 UNID CYPRINID 1.0 1.5 - - 0.2 0.5 UNID MOXOSTOMA CHANNEL CATFISH - 0.2 STONECAT 0.2 0.5 BROOK SILVERSIDE - 0.4 - - - 0.2 ROCK BASS - 0.3 0.2 UNID LEPOMIS 0.1 - . ,B1.8 0.4 0.2 1.5 UNID CENTRARCHID - - 0.2 JOHNNY DARTER RAINBOW/BANDED DARTER UNID ETHEOSTOMA 0.2 - - - 0.2 UNID PERCINA - 0.2 . 0.2 - UNIDENTIFIED 0.2 . 1..9 22.3 ALL SPECIES 0.3 - 5.7 5.3 - 3.2-

B-12 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ...... ------SITE=INTAKE ------LIFESTAGE LARVAE LOCATION II 12 TIME TINE DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP REP REP REP REP REP REP REP 1 2 I 2 1 2 I 2 3 4 1 2 1 2 I I PER I PER I PER I PER # PEP I PER I PER # PER I PER I PER I PER I PER I PER I PER I PER 10 a3 10 .3 1O m3 10 s3 10 .3 10. 3 1O m3 10 .3 103 103 10 3 0 s3 10 &3 10 m3 10 @3 28JUN88 SPECIES GIZZARD SHAD S- - - 0.1 COMMON CARP 0.2 -- - 0.4 HORNYHEAD CHUB 6OLDEN SHINER SAND SHINER UNID NOTROPIS 3.9 3;8 0.5 0.5 1.1 3.3 - 2.9 FATHEAD MINNOW - - - 0.7 UNID CYPRINID 0.3 0.3 1.0 0.1 - - 2.9 CHANNEL CATFISH - -- - 0.3 STONECAT 0.1 BROOK SILVERSIDE - - - 0.2" 0.1 O.; 0.3 ROCK BASS 0.3 1.9 - 0.4 O,0. UNID LEPOMIS 0.6 RAINPOW DARTER RAINBOW,'BANDED DARTER 0.1 -0.1 UNID ETHEOSTOMA UNIDENT IFIED ALL SPECIES 4,:3 4. 2 1.2 3.4 - 9.7 05JUL8B SPECIES COMMON CARP 0.1 - 0.3 - - - - 0.4 SAND SHINER UNID NOTROPIS 0.6 1.0 0., 0.6 - - 1.4 1.6 0.1 FATHEAD MINNOW -S 0.3 - - - - 0.1 0.3 0.5 UNID CYPRINID 0.2 0.6 - 0.8 UNID MOXOSTOMA -S 0.2 CHANNEL CATFISH STONECAT BROOK SILVERSIDE - 0.2 3 - - - 0.2 ROCK BASS 0.2 0.1 0.2 UNID LEPOMIS - - 0.8 0.6 - 0.1 07 UNID AMMOCRYPTA RAINBOW DARTER RAINBOW/BANDED DARTER UNID ETHEOSTOMA l.1 0.2 " ALL SPECIES - 1.8 3.2 1.9 - 1.7 1.7 2.1 19JUL8B SPECIES COMMON CARP SPOTFIN SHINER - - 0.1 - UNID NOTROPIS - 3.0 2.3 5.1 3.0 - 0.3 0.9 UNID PINEPHALES UNID CYPRINID - 0.1 3.9 10.6 - CHANNEL CATFISH STONECAT UNID LEPOMIS - 0.3 3.0 2.7 UNIDENTIFIED - 0.2 ALL SPECIES - 3.1 2.8 - 12.0 16.4 0.3 0.8 16AUGBB SPECIES SPOTFIN SHINER - 0.2 - UNIO CYPRINID 0.6 - 0.8 - UNID LEPOMIS 0.1 - 0.2 - ALL SPECIES 0.7 - 1.1 - -

B-13 COMMONWEALTH EDISON COMPANY - DRAIDWODD STATION - 1998 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE --.------...... ------SITE=INTAKE ------LIFESTA6E LARVAE LOCATION I! 12 TIME TIME DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 3 4 1 2 1 2 1 I PER # PER # PER # PER # PER 0 PER # PER # PER # PER I PER I PER i PER # PER I PER I PER 10 .3 10 s3 10 @3 10 03 10 310m3 10 m3 10 3 13 0 @3 10 s3 10 s3 10 s3 10 A3 10 s3 23AUG88 SPECIES UNID NOTROPIS - 0.2 0.1- - FATHEAD MINNOW UNID CYPkINID -0.7 0.7 0.9 - - - 0.80.B UNID LEPOMIS 0.2 0.2 ALL SPECIES 0.2 0.B 0.9 0.2 0.9 - - 1.0 30AUG88 SPECIES GIZZARD SHAD 0.2 COMMONCARP - 0.4 SPOTFIN SHINER 0.1 0.1 BLACKSTRIPE TOPMINNOW 0.2 - 0 0.1 UNID LEPOMIS ALL SPECIES 0.1l (',1 - 0.2 - 0.4 0.2 06SEP88 SPECIES 6IZZARP SHAD 0-.2 2.8 UNID CYPRINID - - - - 0.1 - ALL SPECIES - - - 0.1 - 0.2 2.8 13SEPO8 SPECIES UNID FIMEPHALES ALL SPECIES

B-14 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 19BB JCHTHYOPLANKTON STUDIES - DENSITY OF LARVAE COLLECTED AT EACH SITE -.------...... ------SITE:INTAKE ------LIFESTAGE LARVAE LOCATION 12 13 14 TIME TIME TIRE NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP 2 1 2 3 1 1 2 1 2 I 2 1 2 I 2 I PER I PE #P PEP # PER I PERU PEP # PER I PER I PER # PER I PER I PER I PEP # PER # PER 10 3 1 m31 0 s3 10@3 10&310@3 10 3 10m3 10s3 10 x3 10 m3 10 @[email protected] DATE SPECIES - . .. - .- 0.3 - 19APRBB UNID PERCINA -. 8 UNID STIZOSTEDION 0.2 ALL SPECIES 0.9 - . .. - .- 0.3 26APRO8 SPECIES UNID PERCINA 0.4 0.2 0.5 - UNID STIZOSTEDION - 0.1 - ALL SPECIES 0.4 0.4 0.5 03MAY88 SPECIES UNID ETHEOSTOMA 0.1 - 0.5 UNID PERCINA 3.2 0.9 3.5 UNID PERC11 ALL SPECIES 3.4 0.9 4.0 - 10MAYB8 SPECIES SUCKERHLOUTH MINNOW 0.2 0.1 0.3 - UNID CYPFINIb 0.4 0.4 0.2 - UNID ICTIO7INAE 0.9 0.1 0.5 - UNID CATOSTOMID - 0.2 0,3 - UNID ETHEOSTOMA 2.0 1.7 1.0 - UNID PERCIN 9.4 3.5 4.7 - UNIV PERCIP - - - UNIDENTIFIED - - 0.1 - ALL SPECIES 12.9 6.0 7.2 - 17MAY88 SPECIES COMMON CARP - 2.5 2.7 2.0 GOLDEN SHINER - 0.5 0.4 - SUCKERMOUTH HINNOW - - - - FATHEAD MINNOW - 0.2 0.4 0.1 UNID CYPRINID - 0.2 0.2 - UNID ICTIOBINAE - 0.5 0.2 0.1 UNID CATOSTOMID - - - 0.1 RAINBOW/BANDED DARTER - . 0.2 - UNID ETHEOSTOMA - 0.8 0.5 0.6 UNID PERCINA - 4.9 3.2 1.5 UNID PERCID - 1.4 1.3 0.5 UNIDENTIFIED - - 0.2 0.4 ALL SPECIES - 10.8 9.1 5.3 24MAYBB SPECIES COMMON CARP 9.8 9.6 26.3 - - 0.4 - 14.3 8.5 HORNYHEAD CHUB . 0.6 0.3 - - - 0.4 GOLDEN SHINER 0.5 1.8 2.7 - - - 0.2 0.6 UNID NOTROPIS - 0.2 SUCKERMOUTH MINNOW ------0.5 0.3 FATHEAD MINNOWN 0.2 0.7 - - 0.2 0.1 UNID CYPRINID 3.8 11.1 15.0 - - - - 5.5 4.0 CATOSTOMID D 2.7 6.5 5.8 - - - 4.8 4.2 UNID ICTIORINAE 1.0 1.1 2.0 - - - - 3.7 1.9 UNID CATOSTOMID - - 0. 1- - UNID ETHEOSTOMA 0.2 0.5 0.8 - - 0.5 0.4 UNIV PERCINA 4.2 6.5 8.0 - - 9.2 5.8 UNID PERCID 0.5 0.1 0.8 UNIDENTIFIED 0.7 - 10 - ALL SPECIES 23.3 38.2 63.4 - - 0.4 - 38.9 26.2

B-15 COMMONWEALTH EDISON COMPANY - BRAIDWODD STATION - 1999 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITE:INTAKE ------LIFESTAGE LARVAE LOCATION 12 13 14 TIME TIME TIME NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP BOT TOP DOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP 2 I 2 3 1 1 2 1 2 I 2 1 2 1 2 # PER # PER I PER I PER # PEP # PER # PER I PER # PER S PER I PER I PER # PER # PER # PER 10 m3 10 m3 10 @3 10 m3 10 s3 10 s3 1O @3 10 s3 10 m3 10 03 10 @3 10 m3 10 a3 10 @3 10 m3 31MAY88 SPECIES UNID GAR GIZZARD SHAD COMMON CARP 3.9 1.9 - 1.6 - 2.3 HORNYHEAD CHUB 0.2 - - 0.1 -1.0 0.1 GOLDEN SHINER 0.2 0.1 0.2 S0.2 UNID NOTROPIS 0.7 3.0 0.1 0.6 SUCKERMOUTH MINNOW 0.1 0'. 1 0.1 FATHEAD MINNOW 0,1 0.4 0.1 CYPRINID N 0.1 0.1 UNID CYPRINIO 9.3 8.3 1.4 3.6 UNID MOXOSTOMA - 3.9 - CATOSTOMID D 9.5 11.9 0.5 9.9 - 0.8 S0.4 - UNID ICTIOBINAE 0.1 - 0.4 - BROOK SILVERSIDE . 0.1 ROCK BASS 0.1 0.3 0.3 0.8 UNID LEPOMIS SMALIMOUTH BASS 0.2 UNID POMOXIS 0- 0.1 RAINBOW DAPTEP 0.5 0.1 RAINBOW/BANDED - !.1, 0.1 DARTER 0.2 0.2 0.2 - 0.6 UNIE, ETHEOSTOMA -0.7 0.1 0.4 UNID PERCINA 2.2 2.4 0.2 0.5 0.1 0.2 - UNID PERCID - 0.1 UNIDENTIFIED - 0.2 ALL SPECIES 28.9 29.6 0.8 - 8.7 19.3 - 1,6 07JUNSB SPECIES - 0.1 GIZZARD SHAD *0.3 0.9 COMMON CARP - 0.9 HORNYHEAD CHUB - 0.1 - 0.4 - 0.9 GOLDEN SHINER 0.2 0,2 - - 0.2 UNID NOTROPIS 2.2 0.2 0.4 BLUNTNOSE MINNOW FATHEAD MINNOW -0.8 0.2 - CYPRINID N 0.2 - UNID CYPRINID 4.7 1.5 1.6 * 0.3 0.2 CATOSTOMID D 0.8 - 0.2 0.4 0.3 0.3 BROOK SILVERSIDE . 0.2 ROCK BASS -0.5 1.1 0.6 UNID LEPOMIS 2.0 1.2 0.7 -0.3 SHALLMOUTH BASS 0.4 0.5 - UNID CENTRARCHID - 0.1 FANTAIL DARTER 0.1 JOHNNY DARTER 0.1 0.3 - RAINBOW/BANDED DARTER 0.1 - UNID ETHEOSTOMA - 0.1 0.6 1.3 0.1 - UNID PERCINA - 0.9 - 0.2 0.3 UNID PERCID UNIDENTIFIED 0.9 - - 0.1 ALL SPECIES 15.4 0.3 0.4 - 6.6 6.9 1.1 0.6

B-16 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198B ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE -.------...... ------SITE:INTAKE ...... LIFESTAGE LARVAE LOCATION 12 13 14 SlIME lIME TIME NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP DOT TOP BOT TOP DOT TOP POT REP REP REP REP REP REP REP REP 2 I 2 3 1 1 2 I 2 1 2 1 2 1 2 I PER I PER I PER I PER I PER * PER I PER 0 PER # PER I PER I PER # PER f PER I PER I PER to10310 m33s3 10 s3 10 0 10 3 10 a3 10 A3 10 03 10 @3 10 m3 10 43 10 83 10 03 14JUN88 SPECIES GIZZARD SHAD - - * ------0.1 COMMON CARP 0.3 2- HORNYHEAD CHUB ROSYFACE SHINER ------0.2 UNID NOTROPIS 0.4 0.1 0.B 0.3 0.2 0.3 0.3 0.2 0.3 0.9 0.2 BLUNTNOSE MINNOW - - 0.2 - - - - FATHEAD MINNOW 0.3 0.3 - 0.2 0.2 - - - CYPRINID N UNID CYPRINID 0.3 - 0.5 0.3 0.B 1.3 - - YELLOW BULLHEAD 0., - 0.2 - 0.2 STONECAT - 0.2 0.2 - ROCK BASS - 0.2 - 0.3 0.5 UNID LEPOMIS 0., (.1 0.1 0.2 0.2 0.2 0.5 0.4 0.6 0.4 0.2 SMALLMOUTH BASS UNID POMOXIS 0.3 JOHNNY DARTER RAINBOW/BANDED o - -0.32

DARTER 0.1 0.2 --- - UNID ETHEOSTOMA UNID PERCINA - - - 0.3 0.2 UNIDENTIFIED - .I - 0.3 0.1 - - - .-- ALl SPECIES - 0.8 1.1 0.5 1.2 1.3 2.3 3.0 0.4 1.0 1.5 0.5 21 JUN88 SPECIES COMMON CARP 0.2 HOR4YHEAD CHUB - 0.2 BOLDEN SHINER - - 0.1 0.1 ROSYFACE SHINER - - - 0.1I UNID NOTROPIS - 0.5 0.2 0.3 0.4 0.5 - 0.3 0.7 BLUNTNOSE MINNOW FATHEAD MINNOW - 0.3 0.3 UNID CYPRINIJ - 0.9 0.2 3.2 0.5 - 0.21 UNID MOXOSTOMA CHANNEL CATFISH - 1.2 STONECAT - 0.2 0.2 - 0.2 BROOK SILVERSIDE ROCK BASS - 0.6 0.7 UNID LEPOMIS 2.6 1.5 0.1 UNID CENTRARCHID JOHNNY DARTER - 0.2 RAINBOW/BANDED DARTER -S - 0.3 0.1 - 0.3 - UNID ETHEOSTOMA 0.3 UNID PERCINA S - - 0.1 UNIDENTIFIED ALL SPECIES 7.2 0.6 0.5 0.7 6.7 3.4 0.4 - 1.3 -

B-17 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ...... ------SITE:INTArE ------LIFESTAGE LARVAE LOCATION 12 13 14 TIME TIME TIME NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP BOT REP REP REP REP REP REP REP REP 2 1 2 3 1 1 2 1 2 1 2 1 2 1 2 # PER # PEP # PEP I PER # PERPI PERIP P # PERI PERI PERI PERI PERI PER # PER I PERP 10 3 10 &3 10 0310 10 10 m3 10 @3 10 m31 0 s3 10 a'310 3 10 a3 10 @3 10 m3 10 m3 28JUND8 SPECIES GIZZARD SHAD COMMON CARP 0.2 - 0.3 HORNYHEAD CHUB GOLDEN SHINER 0.2 SAND SHINER 0.1 UNID NOTROPIS 1.6 1.3 0.9 1.7 - 0.4 " I, 8 2.1 FATHEAD MINNOW 0.5- 0.2 - 0.2 UNID CYPRINID 0.7 0.2 CHANNEL CATFISH STONECAT 0.2 BROOK SILVERSIDE 0.1 0. ROCK BASS -0.3 0,8 0 .9 - 0.5 - UNID LEPOMIS 1.4 0.4 - 0. RAINBOW DARTER 0.2 - 0.7 RAINBOw/BANDED DARTER 0.2 UNIV ETHEOSTOMA 0.2 UNIDENTIFIED - 0.2 ALL SPECIES 5.1 1.4 1.3 6.6 4.6 - I, 9 2.2 05JULBB SPECIES COMMON CARP 0.7 - 4.6E 3.2 SAND SHINER 0.1 UNID NOTROPIS 0.5 0. 1 0.2 0.9 0.5 - 0.1 0.4 FATHEAD MINNOW 0.2 0.3 J.9 - 1.5 UNIV CYPRINID .1- 1.3 4 0.5 UNID MOXOSTOMA CHANNEL CATFISH 0.6 0.4 STO?)ECAT BROOK SILVERSIDE - 0.5 ROCK BASS - 0.1 UNID LEPOMIS - 1.3 0.6 O.3 UNID AMMOCRYPTA RAINBOW DARTER 0.3 RAINBOW/BANDED DARTER - 0.4 0.1 UNID ETHEOSTOMA *O.1 1.7 " 0. ALL SPECIES - 6.4 8.3 6.7 5 - 0.9 - 19JUL88 SPECIES COMMON CARP SPOTFIN SHINER - 0.2 UNID NOTROPIS 0.5 1.5 - 0.7 0.3 0.3 - 0.5 0.7 UNID PINEPHALES 0.1 - UNID CYPRINID 1.7 4.2 - 0.8 3.6 CHANNEL CATFISH . 0.2 - 0.3 0.2 STONECAT 0.1 - UNID LEPOMIS 2.7 2.4 0.2 0.8 1.2 UNIDENTIFIED ALL SPECIES 5.1 9.3 0.7 0.5 - 2.2 5.3 - - 0.5 0.7 I6AU6BB SPECIES SPOTFIN SHINER UNID CYPRINID 2.5 - 1.1 - 0.2 - 0.3 1.4 UNID LEPORIS 0.7 0.1 - 0.1 - - - 0.1 0.5 ALL SPECIES 3.2 0.1 1.1 0.1 0.22 - 0.4 1.9

B-18 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198B ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE -- ..-.-...... ------SITEtINTAIE ...... S LIFESTAGE LARVAE LOCATION 12 13 14 TIME TIME TIME NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP 2 1 2 3 1 1 2 1 2 1 2 1 2 1 2 U' 6 PER # PER I PER I PEP # PER I PER I PER # PER I PER U PER # PER # PER # PER # PER # PER 10.210m310.310.310m310s310.310&310e310m310 m3 10 s3 10m 3 10 m3 10 a3 23AU688 SPECIES UNID NOTROPIS 0.2 FATHEAD MINNOW UNID CYPRINID 0.2 UNID LEPOMIS 0.6 ALL SPECIES 1.0 30AUG88 SPECIES 6IZZARD SHAD - 0.2 COMMON CARP 0.2 0.2 SPOTFIN SHINEF DLACKSTRIPE TOPMINNOW UNID LEPOMIS - 0.2 - ALL SPECIES 0.S - 0.2 06SEP88 SPECIES GIZZAR' SHAD 0.f- UNID CYPPINID ALL SPECIES 0. c 13SEP88 SPECIES UNID PIMEPHALEE ALL SPECIES

B-19 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198B ICHTHYOPLANKTON STUDIES - DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=INTAKE ------LIFESTAGE LARVAE LOCATION 14 TIrMI NIGHT DEFTH TOP BOT REP REP 1 1 2 I PER i PER # PER 10 13 10 a3 10 .3 DATE SPECIES 19APRB6 UNID PERCINA - UNID STIZOSTEDION ALL SPECIES 26APR88 SPECIES UNID PERCINA UNID STIZOSTEDION ALL SPECIES - 03NAY88 SPECIES UNID ETHEOSTOMA - - UNID PERCINA - UNID PERCID - ALL SPECIES - 1OMAY8B SPECIES SUCKERMOUTH MINNOW - UNID CYPRINID UNID ICTIOBINAE UNID CATOSTOMID UNID ETHEOSTOMA - UNID PERCINA - UNID PERCID - UNIDENTIFIED - - ALL SPECIES - - 17MAY88 SPECIES COMMON CAPP - - GOLDEN SHINER - - SUCKERMOUTH MINNOW - - FATHEAD MINNOW - - UNID CYPRINID - - UNID ICTIOBINAE - - UNID CATOSTOMID - - RAINBOW/BANDED DARTER - - UNID ETHEOSTOMA - - UNID PERCINA - - UNID PERCID UNIDENTIFIED ALL SPECIES 24MAYBB SPECIES COMMON CARP HORNYHEAD CHUB 6DLDEN SHINER UNID NOTROPIS SUCKERMOUTH MINNOW FATHEAD MINNOW UNID CYPRINID - - CATOSTOMID D UNID ICTIOBINAE UNID CATOSTOMID - - UNID ETHEOSTOMA - - UNID PERCINA UNID PERCID UNIDENTIFIED ALL SPECIES

B-20 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1986 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITE:INTAKE ------LIFESTAGE LARVAE LOCATION 14 TIME NIGPT DEFIh TOP BOT REP REP I I 2 I PER 8 PER I PER 10 03 10 1310 443 31MAYB8 SPECIES UNIV GAP - - - GIZZARD SHAD - 0.2 - COMMON CARP 2.2 1.5 HORNYHEAD CHUB 0.1 0.7 GOLDEN SHINER 0.1 - - UNID NOTROPIS 1.3 1.9 - SUCIERMOUTH MINNOW - - FATHEAD MINNOW - - CYPRINIE, N - - UNID CYPRINID 1.8 2.1 UNID MOXOSTOMA - CATOSTOMID D 3.2 7.0 UNID ICTIOBINAE 0.1 0.3 BROOK SILVERSIDE - ROCK BASS - 0.7 UNID LEPOMIS - .v SMALLMOUTH BASS 0.1 UNID POMOIS - 0.2 RAINBOW DARTER - RAINBOW/BANDED DARIER 0.2 UNID ETHEOSTOMA 0.4 0.3 UNID PERCINA I.0 0.Ef UNID PERCID UNIDENTIFIED ALL SPECIES 10.3 15.3 07JUNB8 SPECIES GIZZARD SHAD - - COMMON CARP - 0.3 HORNYHEAD CHUB - 0.1 GOLDEN SHINER - 0.4 UNID NOTROPIS - 0.7 BLUNTNOSE MINNOW - FATHEAD MINNOW - 0.6 CYPRINID N - UNID CYPRINID - 2.B CATOSTOMID D - 0.3 BROOK SILVERSIDE - ROCK BASS 0.4 UNID LEPOMIS - 2.7 SMALLMOUTH BASS - - UNID CENTRARCHID FANTAIL DARTER JOHNNY DARTER - - RAINBOW/BANDED DARTER - - UNID ETHEOSTOMA 0.3 - UNID PERCINA - 0.4 - UNID PERCID - - UNIDENTIFIED - - ALL SPECIES 9,1 -

B-21 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198B ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ---- ...... ------SITE:INTAKE ------LIFESTAGE LARVAE LOCATION 14 TIME NIGHT DEPTH TOP BOT REP REP 1 1 # PER I PEP I PER 10 .3 10 .3 10 .3 14JUN88 SPECIES GIZZARD SHAD - - - COMMON CARP - 0.4 - HORNYHEAD CHUE: 0.3 0.1 - ROSYFACE SHINER UNID NOTROPIS 0.3 0.3 0.3 BLUNTNOSE MINNOW 0.1 - FATHEAD MINNOW 0.3 (.1 0.7 CYPRINID N 0.1 - - UNID CYPRINID 0.9 1.3 0.7 YELLOW BULLHEAD 0.3 0.3 STONECAT 0.1 0.1 - ROCK BASS 0.7 0,9 0.3 UNID LEPOMIS 0.3 0.4 0.2 SMALLMOUTH BASS - - .2 UNID POMO)IS JOHNNi: DAFTER RAINED W/BANDED DARTER 0.1 0.1 0.2 UNID ETHF•cTOMA 0.1 - . UNID PERCINA v. 0.71 0.3 UNIDENTIFIED - 0.1 - ALL SPECIES 4.4 5.0 3.3 21JUN88 SPECIES COMMON CARP o.6 0. - HORPNHED CHI- GOLDEN SHINER ROSYFACE SHINER- UNID NOIPOPIS 0.9 1.8 B[UNTNOSE MINNOW - - FATHEAD MINNOW 1.2 0.1 UNID CYPRINID 3.2 1.8 UNID MOXOSTOMA - 0.1 CHANNEL CATFISH - 0.1 STONECAT BROOK SILVERSIDE ROCK BASS 0.9 1.O0 UNID LEPOMIS 3.1 2.8 UNID CENTRARCHID - - JOHNNY DARTER RAINBOW/BANDED DARTER UNID ETHEOSTOMA 0.2 - UNID PERCINA 0.2 0.2 - UNIDENTIFIED - - ALL SPECIES 10.3 7.9 -

B-22 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198B ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ...... ------SITE=INTAKE ------L[IFSTAGE LARVAE LOCATION 14 TIME NIGHT DEPTH TOP BOT REP REF I I 2 # PER I PER I PEF 10 .3 10 .2 10 .3 28JUN88 SPECIES 6IZZARD SHAD COMMON CARP 0.4 0.1 HORNYHEAD CHUB 0.1 - GOLDEN SHINER SAND SHINER UNID NOTROPIS 1.7 0.9 FATHEAD MINNOW 0.3 0.7 UNID CYPRINID 1.5 1.2 CHANNEL CATFISH 0.1 STONECAT BROOK SILVERSIDE ROCK BASS 0.1 0.4 UNID LEPOMIS 0.3 0.2 RAINBOý DARTER 0.1 RAINBOWiBANLEED DARTER 0.1 UNID ETHEOSTOMA UNIDENTIFIED ALL SPECIES 4.7 4.21 05JUL88 SPECIES COMMON CARF 0.7 1.6 SAND SHINER UNID NOTROFIS 0.3 0.S - FATHEAD MINNOW - 0.1 - UNID CYPRINIL 0.6 2. - UNID NOXOSTOMA CHANNEL CATFISH 0.1 ('.3 STONECAT 0.1 BROOK SILVERSIDE ROCK BASS UNID LEPOMIS 0.6 1.9 - UNID AMMOCRYPTA 0.1 RAINBOW DARTER RAINBOW/BANDED DARTER 0.3 UNID ETHEOSTOMA ALL SPECIES 2.6 7.3 19JULB8 SPECIES COMMON CARP 0.1 0.3 SPOTFIN SHINER UNID NOTROPIS 0.6 0.3 UNID PIMEPHALES UNID CYPRINID 3.7 12.7 CHANNEL CATFISH 1.1 STONECAT 0.2 UNIV LEPOMIS 1.4 6.7 UNIDENTIFIED ALL SPECIES 5.9 21.3 16AUG5B SPECIES SPOTFIN SHINER UNID CYPRINID UNID LEPOMIS ALL SPECIES

B-23 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITE:INTAKE ------LIFESTAGE LARVAE LOCATIONL T 14 TIME NIGHT DEPTH TOP BOT REP REr 1 1 2 # PEP I PEP I PER 10 m3 10 m3 10 a3 23AUGBS SPECIES UNID NOTROPIS - FATHEAD MINNOW - UNID CYPRINID - UNID LEPOMIS - ALL SPECIES - 30AUG88 SPECIES GIZZARD SHAD - COMMON CARP - SPOTFIN SHINER - BLACKSTRIPE TOPhINNOK UNID LEPOMIS ALE SPECIES 06SEP88 SPECIES GIZZARD SHAD UNID CYPRINID ALL SPECIES 13SEP88 SPECIES UNID PIMEPHALEE- 0.2 - ALL SPECIES 0.2

B-24 m COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 19B8 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... SrTE=KANIANKEE RIVER -. LIFESTAGE EGG LOCATION KI K2 K3 TIME TIKE TINE DAY DAY NIHT DAY DEPTH DEPTH DEFTH DEPTH TOP TOF TOF BOT TOP REP REP 1 2 I REP REP REP I I I I PEP I PER I PER I PER # PER I PER 10 a3 10 .3 10 m3 10 42 10 23 10 m3 DATE SPECIES 24MAY8B UNIDENTIFIED ALL SPECIES 31MAYB8 SPECIES UNIDENTIFIED - - - 0.2 - - ALL SPECIES 07JUNBB SPECIES UNIDENTIFIED 0.1 - 0.1 - ALL SPECIES 21JUNBB SPECIES UNIDENTIFIED ALL SPECIES - 0.6 - - - 19JULB8 SPECIES UNIDENTIFIED 4.6 (,0. ALL SPECIES 4.6

B-25 - COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 19B8 ICHTHYDPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=KANKANKEE RIVER ------LIFESTAGE LARVAE LOCA7ION KI K2 TIME TIME DAY NIGHT DAY NIGHT DEP1H DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP SOT TOP DOT REP REF REP REP REP REP REP REP 1 2 I 2 1 2 I 2 1 2 I 2 1 2 1 1 PER I PER I PER # PER I PER I PER I PER # PER # PER I PER I PER I PER I PERP PER I PER 10 m3 10 m3 10 3 10 s3 10 a3 10 s3 10 s3 10 .3 10 s3 10 m3 10 m3 10 m3 10 m3 10 m3 10 m3 DATE SPECIES 19APR88 UNID PERCID ALL SPECIES 26APR88 SPECIES UNID PERCINA .0.1 ALL SPECIES - 0.1 ------10MAYB8 SPECIES COMMON CAPP ------0.2 - - - - - UNID CYPRINID ------0.2 - - UNID ICTIODINAL - 0.3 0.2 0.1 - 0.6 0.2 0.1 1.8 1.0 1.4 4.5 1.9 RAINBOW-BANDED DARTER - 0.4 - 0.1 - - - - . 0.1 0.1 - UNID ETHEOSTOMA - 0.1 ------0.2 - UNID PERCINA 0. E. 0.1 - - - - - 0.6 0.4 - - - UNID PERCID - - v10, - 0. - - UNIDENTIFIED - --- - 0.1 ALL SPECIES 0.6 0.7 0.4 0,3 0. 1 0.6 0.5 0.1 2.4 1.6 1.8 4.6 1.9 17MAYBB SPECIES COMMON CARP 0.9 0.4 0.2 - - - -0.1 0.5 0.2 GOLDEN SHINER 0 .2 0.1 FATHEAD MINN@O UNID CYPRINID 0.1 0,2 - CATOSIOMID D - 0.8 0.1 - 0.2 - 0.6 0.1 0.2 UNIV ICTIOBINAE 0.3 0.4 2.1 0.8 0.2 0.4 0.2 0.3 0.9 0.6 0.3 0.6 UNID CATOSIOMIF 0.1 SMALLMOTH BASS UNID ETHEOSTOMA 0.2 - UNID PERCINA 0.2 0.8 0.8 0.3 0.2 0.2 0.7 UNID PERCID UNIDENTIFIED 0.2 - 0.2 - . . - 0.1 ALL SPECIES 0.2 0.8 1.2 -5.2 1.8 0.4 0.6 0.2 0.7 1.0 1.6 1.7 0.9 24MAY88 SPECIES GIZZARD SHAD COMMON CARP - 2.1 0.6 0.3 2.5 0.2 4.1 0.3 0.3 1.2 2.1 2.7 2.0 1.3 HORNYHEAD CHUB GOLDEN SHINER - - 0.1. UNID NOTROPIS FATHEAD MINNOW - 0.1 - - 0.2 - 0.2 - 0.1 UNID CYPRINID - 0.3 - 0.7 - 0.2 0.4 0.1 0.3 CATOSTOMID D - 01 - - - - 0.4 0.1 UNID ICTIOBINAE - 0.4 0.3 - 0.4 0.1 - 1.0 0.4 0.4 0.1 UNID CATOSTOMID UNID ETHEOSTOMA - 0.1 - 1.0 0.2 - - 0.5 - UNID PERCINA - 0.8 - 0.6 0.2 0.2 0.4 - - 0.4 0.4 UNID PERCID 0.2 - - - 0.2 -. . . . UNIDENTIFIED ALL SPECIES 2.8 1.4 0.7 3.7 1.4 5.6 0.5 0.8 1.2 3.2 4.6 3.3 2.7

B-26 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ...... ------. SITE=KANIANI.EE RIVER ------LIFESTAGE LARVAE LOCATION I TIMEK K2 DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP BO TOP OT TOP POT TOP BOT REP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 1 2 I 2 1 2 1 # PER I PER # PER # PER # PER # PER # PER I PER # PER # PER I PER I PER I PER I PER # PER 10 s3 10 m3 10 m3 10 13 10 s3 10 s3 10 m3 10 m3 10 m3 10 s3 10 .3 10 m3 10 s3 10 .3 10 m3 31MAY88 SPECIES COMMON CARP 0.2 2.6 OB 7.1 - 0.2 HORNYHEAD CHUB 0.2 - 0.2 0.5 - GOLDEN SHINER - - 0.2 0.2 : 0.2 UNID NOTROFIS FATHEAD MINNOW - 0.4 0.3 0.3 CYPRINID N - 0.1 - - - UNID CYPRINID 0.3 0.6 0.6 0.6 - 0.2 0.5 0.5 0.5 UNID MOXOSTOMA 0.2 0.1 - - - - - CATDSTOhID D 0.5 0.4 0.4 4.5 6.7 3.0 3.9 0.6 0.6 0.2 8.3 4.6 8.6 UNID ICTIOBINAE 0.2 - 0.3 - 0.2 0.2 - ROCI BASS 0.3 0.2 - UNID LEPOMIS -- 0.2 - SMALLMOUTH BASS --- - - 0.3 - RAINBOW DARTER -0.2-- 0.2-, UNID ETHEOSTOMA S0,1 0.2 '.5 0.3 0.4 - 0.8 0.3 0.2 UNID PERCINA 0.2 0.9 0.4 0.2 0.3 0.2 0.5 - 0.3 - - - - .1 - - UNID PERCID 0.2 . ...- UNIDENTIFIED - - - 0.2 ------ALL SPECIES 0.6 0.5 0.B 1.2 5.7 11.8 4.9 13.1 0.2 0.6 0.8 1.0 10.8 6.6 9.4 07JUN88 SPECIES COMMON CARP - - 2.8 2.6 0.7 2.0 - - 0.1 2.4 0.2 GOLDEN SHINER UNID NOTROPIS 0.3 1.0 0.7 0.1 0.1 1.3 O.B 0.6 - 1.1 0,2 FATHEAD MINNO0 - - - 01 ------UNID CYPRINID 0.5 0.9 0.2 0.8 - - - - 1.2 0.9 - CATOST6MID E 0.1 0.2 0.6 - 0.3 0.1 0.1 - . 0.7 0.2 - UNID ICTIOBINAE ROCk BASS -- 0.2 - 0.3 0.1 - - - - - UNID LEPOMIS 0.1 0.2 0.5 0.2 0.3 - - - . 0.1 0.5 - SMALLMOUTH BASS RAINBOW DARTER 0.2 JOHNNY DARTER - - - 0.2 RAI NBDW/ANDED DARTER 0.1 - 0.2 - 0.2 - UNID ETHEOSTOMA LO6PERCH UNID PERCINA 0.4 - . 0.3 0.2 0.1 0.3 - 0.6 0.8 - UNIDENTIFIED - 0.1 - . 0.2 0.1 - - 0.1 - - - ALL SPECIES 1.1 1.1 2.0 1.0 4.1 5.0 1.8 3.6 0.3 1.6 1.4 1.7 2.2 5.0 0.8

B-27 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 19BB ICHTHYCPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITE=KANKANKEE RIVER ------LIFESTAGE LARVAE LOCATION K2 TIMEKI TIME DAY NIGHT DEPTHDAY NI6HTDEPTH DEPTH DEPT H TOP BOT TOP BOT TOP DOT TOP BOT REP REP REP REP REP REP REP REP w 1 2 I 2 I 2 1 2 1 2 I 2 1 2 I 1 PER I PEP I PER I PER I PER * PER i PER PEP # PER I PER # PER # PER # PER I PER I PER 10 s3 10a3 10 m3 10I 3 10 m3 103all @10 103 3103 10 m3 10 3 10 3 10 @3 10 m3 10 &3 14JUNB8 SPECIES COMMON CARP * - - - -- 0.1 - - - HORNYHEAD CHUB GOLDEN SHINER -S -0.2 UNID NOTROPIS 0.1 0.2 - - - 0.5 0.2 0.2 - 0.1 0.2 FATHEAD MINNOW - - 0.2 0.1 0.1 0.2 - - 0.2 UN[D CYPRINID - 0.1 0.1 0.1 0.2 - - - UNID CATOSTOMID STONECAT - 0.1 0.1 ROCK BASS 0.1 0.5 1.1 - - 0.2 - UNID LEPOMIS S- 0.1 -1 0.2 UNID POMOXIS 0.2 RAINBOWiBANDED DARTER 0.3 0.4 - 1.5 UNID ETHEOSTOMA 0.1 0.2 - 0.2 0.2 UNID PERCINA 0.I 0.2 ALL SPECIES 0.1 0.2 0.2 (1.6 0.3 1.8 2.6 0,2 0.2 0.2 0.2 0.1 2.4 21JUNBB SPECIES COMMON CARP 0.41 0. - 0.1 CHUP 0.2 HORNiHEAD - BOLDELN5HI0F 0.1 0.2 - 0.2 ROSiFACE SHINER - - 0.2 - 0.1I - UNIt NOThOPIS 1.6 2.3 - 0.5 0.2 0.2 0.2 0.2 -- FATHEAD MINNOV - 0.2 - 0.2 0.2 0.2 UNID C0PFItI[.I 0.4 0.7 1.0 - 0.5 - 0.4 0.4 - 0.5 * 0.4 0. 1.3 0.2 CHANNEL CATFISH 0.1 STONECAT 0.5 RUCN'BASS 0.9 UNID LEPOMIS - 0.4 0.1 0.2 0.4 - 0.2 UNID CENTRARCHID 0.2 - - RAINBOW/BANDEDL DARTER - 0.1 - 0.2 0.2- UNID ETHEOSTOMA 0.40.1 0. UNID PERCINA 0.1 0.1 30. - 0.2 0 UNID PERCID UNIDENTIFIED 0.2 - 0.2 1.6 2.3 - 2.1 1.8 " 3.9 ALL SPECIES 1.5 0.2 0.8 2.4 0.5 2.2 28JUN88 SPECIES COMMON CARP 0.1 - 0.4 0.9 0.4 0.7 0.3 1.1 0.2 0.3 0.1 UNID NOTROPIS - - FATHEAD MINNOW - - 0.1 - 0.4 0.1 UNID CYPRINID - 0.2 - 0.2 - 0.3 - - 0.1 CHANNEL CATFISH - 0.2 STONECAT - - - 0.3 ROCK BASS - 1.1 UNID LEPOMIS 0.2 0.5 0.3 0.3 - O.1 - RAINBOW DARTER 0.2 0.1 - UNID PERCINA UNIDENTIFIED -S - - 0.1 - - 2.2 2.0 ALL SPECIES 0.5 1.4 0.3 1.1 0.7 1.0 0.4 0.4

B-28 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 198B ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE -.------...... ------SITE:KANKlANKEE RIVER ------LIFESTAGE LARVAE LOCATION KI K2 DAY NIGHT DAY NIGHT DEPIH DEPTH DEPTH DEPTH TOP BOT TOP DOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP 1 2 1 2 I 2 1 2 I 2 1 2 I 2 1 I PER I PEE I PEP, PEF 0 PEP # PER I PERP PEP I PER I PER I PER I PER I PER # PER # PER 10 @3 10 m3 10 m3 10 i3 10 m3 10.3 10a3 103 10 @3 10 s3 10 m3 10 s3 10 s3 10 s3 10 m3 05JUL88 SPECIES

COMMON CARP - 0.3 - - - - - UNID NOTROPIS 0.2 0.9 0.3 0.3 0.2 - 0.3 FATHEAD MINNOW - - 002. UNID CYPRINID - 0,1 - 0.2 - - - CHANNEL CATFISH 0. 1 UNIV LEPOMIS 0.2 0.3 0.3 0.3 0.2 UNIDENTIFIED ALL SPECIES 1.2 1.3 0.5 0.3 0.8 0.5 0.2 0.5 12JULBB SPECIES UNID NOTROPIS - 0.3 0.2 - 0.1 UNID CYPRINIv 0.1 UNID LEPOMIS - 0.1 ALL SPECIES - 0.3 0.2 0,4 19JULSB SPECIES COMMON CAFF UNID NOTROPIS 0.4 0.2 0.4 FATHEAD MINNOW UNID CYPRINID 0.3 0.4 UNID LEPOhIS ALL SPECIES 0.4 0.2 0 0.5 0.7 26JUL8B SPECIES UNID hOTtFIC. - 0,2 0.4 0.2 FATHEAD MINNOO UNID CYPPINID - 0.3 2.4 CHANNEL CATFISH 0.2 STONECAI * UNID LEPOMIS 0.2 - 1.0 ALL SPECIES 0.2 0.4 - 0.5 3.8 09AUG88 SPECIES UNIV NOTROPIS ------0.6 ALL SPECIES * ------0.6 16AUGBB SPECIES SPOTFIN SHINER UNID NOTROPIS - 0.4 0.3 UNID CYPRINID - - 0.2 "0.3 UNID LEPOMIS - 0.1 - - 0.6 1.3 ALL SPECIES - 0.1 - - 1.2 1.9 23AUG88 SPECIES UNID NDTROPIS -- - 0.2 ALL SPECIES - 0.2 30AUBBB SPECIES COMMON CARP UNID CYPRINID - - 0.2 - ALL SPECIES - - - 0.2 -

B-29 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE -----.----...... ------SITE:KANKANKEE RIVER ------LIFESTAGE LARVAE K2) K3 LOCATION K4 TIME TIMi TIME NIGHT DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH DEPTH BOT TOP DOT TOP SOT TOP DOT TOP SOT REP REP REP REP REP REP REP REP REP 2 1 2 1 2 1 2 1 2 1 2 1 1 2 2 1 PER # PER # PER 0 PER 0 PER I PER I PEP I PER I PER # PER t PER I PER I PER # PER I PER 10. 3 10.3 o 10m3103410 m3 10 m3 10 m3 10 s3 10 m3 10 m3 10 @3 10 m3 10 s3 10 @3 10 s3 DATE SPECIES 19APRBB UNID PERCID - -0.1 ALL SPECIES - 0.1 26APRBB SPECIES UNID PERCINA - 0.2 - 0.2 S - 0.2 ALL SPECIES 0.2 - 0.2 - - 0.2 IOMAYBB SPECIES COMMON CARP UNID CYPRINID - - UNID ICTIOBINAE 6.9 0.2 0.4 0.4 0.7 2.5 0,B 3. . - - 0.2 RAINBOW/BANDED DARTER - - - 0.2 - 0.4 - - UNID ETHEOSTOMA UNID PERCINA 0.3 - 0.I 2 - 0.4 UNID PERCID UNIDENTIFIED ALL SPECIES 7.3 0.2 0.4 0.4 0.9 2.7 1.0 3.I .1 - 0.6 0.4 17MAYB8 SPECIES COMMON CARP 0.214 - - - - 0.4 0,I 6 - 0.2 - GOLDEN SHINER FATHEAD MINNOO - - 0.3 - UNID CYPRINID 0.2 - - 0.2 - 0.2 0.3 - CATOSTOMID D - - 0.6 0.8 0.4 - 2.1 0.6 - UNiD ICTIOBINAE 0.2 -0.2 0.5 2.2 - 2 .0 0.1 - - 0.4 - UNINCATOLETMID SMALLMOUITH BASS UNID ETHEOSTOMA - - 0.6 - 0.4 0.2 - - - 0.6 UNID PERCINA 0.5 - 0.6 0.7 - 0.2 0.2 0.7 - 1.6 0.3 - UNID PERCID - --- 0.1 1) - - - 0.1 UNIDENTIFIED 0.1 0.2 ALL SPECIES 1.0 0.4 2.3 3.9 1.6 3.I 2 0.2 0.9 - 4.0 2.6 24MAY88 SPECIES 6IZZARD SHAD - --- 0.2 - - COMMON CARP 1.8 0.2 0.4 0.6 0.5 2.8 0.7 4. 3 - 5.2 3.2 HORNYHEAD CHUB ------0.2 - GOLDEN SHINER 0.2 - - - 0.6 0.2 UNID NOTROPIS 0 10.2 - - 0.3 0.2 FATHEAD MINNOW 0.1 0.2 0.5 - - - - 0.2 0.2 UNID CYPRINID - 0.2 - 0.3 0.2 - - - - 0.2 CATOSTOMID D - - - 0.3 - 0.2 - - 0.2 0.3 UNID ICTIOBINAE 0.3 0.2 - 0.7 0.2 0.2 - - 1.0 UNID CATOSTOMID - 0.2 UNID ETHEOSTOMA 0.1 - 0.2 - 0.4 - 0.2 0.2 - UNID PERCINA 0.6 - 0.3 0.2 0.2 1-.9 0.3 - UNID PERCID 3 0.2 - 0 1 0.3 0.2 - - - - - 0.2 - - UNIDENTIFIED 0.3 5.0 1.B -S - ALL SPECIES 3.1 0.6 0.6 0.4 1.3 4. 9 0.3 0.2 - 9.7 4.6 -

B-30 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198B ICHTHYOPLANVTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE --- ..----...... ------SITE:KANKANKEE RIVER ------LIFESTAGE LARVAE K2 K3 LOCATION K4 TIME TIME TIME NIGHT DAY NIGHT DAY NIGHT DEPTH DEPTH DEFIH DEPTH DEPTH BOT TOP BOT TOP DOT TOP BOT TOP BOT REP REP REP REP REP REP REP REP REP 2 1 2 1 2 1 2 I 2 I 2 1 1 2 2 I PER I PEP # PER I PEPI PER I PER I PER I PER # PER # PER I PER # PER # PER # PER I PER 10 3 10 a3 10l3 10 3 10 a 0 13 10 3 10310311 m3 10 s3 10 o3 10 m3 10 m3 10 @3 31MAYB8 SPECIES COMMON CARP 0.2 0.2 0.1 0.4 - 0.2 - - - 0.2 - HORNYHEAD CHUB 0.2 - - 0.1 - - 0.2 GOLDEN SHINER - 0.2 0.2 0.3 - UNID NOTROPIS 0.2 FATHEAD M]NNOW CYPRINID N UNID CYPRINID 0.2 - 0.1 0.6 0.2 (.2 0.7 0.9 UNID MOXOSTOMA CATOSTOMID D 5.7 0.8 O.B 0.4 0.4 0.5 5.4 2.5 0.9 0.3 0.4 6.9 2.6 UNID ICTIOBINAE - - - O.1 - 0.3 - - ROCt BASS 0.2 - 0.2 - - 0.3 0.2 UNID LEPOMIS SMALLMOUTH BASS 0.2 0.3 - RAINBOW DARTER 0.2 0.2 UNID ETHEOSTOMA - 0.1 0.5 - 1.5 0.2 - 0.2 0.5 UNID PERCINA 0.1 0.2 - 0.3 0.2 - 0.5 0.2 UNID PERCID - - - 0.2 UNIDENTIFIED 0.1 ALL SPECIES 6.5 0.6 1.0 0.6 0.8 1.4 7.1 4.6 2.4 0.5 0.4 9.3 4.8 07JUN88 SPECIES COMMON CARP 1.0 - - - 0.1 1.2 0.2 0.4 - - 0.6 0.4 - GOLDEN SHINER - 0.2 - - UNID N0TROPIS - o.a 0.9 0.4 0.2 0.2 0.2 0.2 2.5 3.2 - 0.7 0.4 - FATHEAD MINNOW - - - - - 0.2 0.1 0.2 0.1 - 0.4 0.2 UNID CYPRINID 1.4 - - - - 1.1 1.5 1.4 0.6 - - 4.6 1.3 CATOSTOMID D 0.2 - - 0.2 0.7 0.1 0.3 0.1 0.2 0.7 - UNID ICTIOBINAE 0.1 ROCK BASS 0.1 0.4 0.2 - UNID LEPOhIS 1.0 - 0.2 0.4 0.6 0.4 1.4 0.1 - 1.1 0.7 - SMALLMOUTH BASS 0.4 0..1------RAINBOW DARTER - . - -- 0.1 0.2 -- JOHNNY DARTER RAINBOW/BANDED DARTER - - - 0.2 - UNID ETHEOSTOMA 0.2 - 0.2 0.2 LOGPERCH - 0.2 - UNID PERCINA - 0.1 - 0.4 0.1 0.1 - 0.1 - - 0.6 UNIDENTIFIED - 0.1 0.5 - - 0.4 - 0.1 - ALL SPECIES 4.3 0.6 1.6 1.3 0.4 3.5 4.1 3.8 1.9 2.7 3.2 8.9 3.9 - -

B-31 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 198B ICHTHYOPLANrTON STUDIES pENSITY OF LARVAE COLLECTED AT EACH SITE ...... ------SITE=KANKANKEE RIVER ------...... LIFESTAGE LARVAE K2 K3 LOCATION K4 TIME TIME TIME NIGHT DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH DEPTH DOT TOP POT TOP DOT TOP BOT TOP DOT REP REP REP REP REP REP REP REP REP 2 1 2 1 2 1 2 1 2 1 2 1 I 2 2 1 PER I PER # PER I PER # PER 0 PER I PEF I PER # PER I PER I PER I PER I PER # PER # PER to m3 10 m3 10 l310 a3 10 s3 10 m3 10 &3 10 @3 10 m3 10 @3 10 *3 10 a3 10 m3 10 m3 10 m3 14JUNO8 SPECIES COMMON CARP HORNIHEAD CHUB GOLDEN SHINER UNID NOTPOPIS - 0.1 0.2 0.2 0.3 0.2 0.3 0.3 - 1.8 0.8 FATHEAD MINNOW 0.2 -- - 02 - 0.3 UNID CYPRINID - - 0.2 0.4 0.2 0.9 UNID CATOSTOMID 0.1 STONECAT - 0.2 - ROCK BASS - 0.2 - UNID LEPOMIS - 0.4 0.2 0.3 UNID POMOYIS 0.4 0.1 - - - - RAINBOWiBANDED DARTER - - 0.1 0.2 0.5 UNID ETHEOSTOMA UNID PERCINA 0.2- - - - 0.4 - ALL SPECIES 0,3 0.1 0.2 0.6 0.1 0.3 0.7 0.7 2.5 0.5 0.3 2.2 1.1 21JUNSB SPECIES COMMON CARP HOPNYNEAD CHUB GOLDEN SHINER ROSYFACE SHINER UNID NOTROPIS 0.6 0.1 0.4 0.4 0.1 0.2 0.2 - FATHEAD MINNOW 0.2 - 0.1 - 0.7 0.1 UNID CYPRINID 0.2 0.1 0.1 0.5 0.2 0.4 CHANNEL CATFISH 1.0 - 0.3 0.1 STONECAT 0.2 ROCK BASS 0.2 - - - - 0.2 -- - UNID LEPOMIS - 0.4 0.1 0.1 UNID CENTRARCHID RAINBOW/BANDED DARTER UNID ETHEOSTOMA UNID PERCINA UNID PERCID UNIDENTIFIED - 0.1 0.2 - - ALL SPECIES 1.9 0.6 0.3 0.9 0.9 0.4 1.1 111 0.7 2BJUNBB SPECIES COMMON CARP - - - - 0.1 -- - UNID NOTROPIS 0.5 1.5 0.4 0.4 - - 0.3 0.2 0.4 - FATHEAD MINNOW - ,01 ------UNID CYPRINID 0.3 - - - 0.1 0.1 0.2 0.1 CHANNEL CATFISH 0.3 ------0.1 - STONECAT ROCK BASS - 0.2 - - UNID LEPOMIS 0.9 0.4 - 0.4 RAINBOW DARTER - - - 0.1 UNID PERCINA -0.4 - - UNIDENTIFIED ALL SPECIES 2.1 1.5 0.4 1.3 0.2 0.6 0.5 0.9 -

B-32 COMMONWEALTH EDISON COMPANY - DRAIDMOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------CITr=VAMVAMv' r avIyt o IIL~flflF.flflNLL KiVLI~ ------LIFESTAGE LARVAE LOCATION K2 K3 K4 TIME TIME TIME NIGHT DAY NIGHT DAY NI6HT DEPTH DEPTH DEPTH DEPTH DEPTH GOT TOP DOT TOP DOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP REP 2 I 2 I 2 1 2 1 2 I 2 I 1 2 2 # PER t PEREI PEP # PEP E PEPI PERi PER I PER 4 PER I PER I PER I PER I PER I PER 10 s3 10 3 10 m3 10 &3 10 m3 10 &310 s3 10 @3 10 m3 10 m3 10 m3 10 @3 10 m3 10 m3 10 m3 05JUL88 SPECIES COMMON CARP UNIO NOTROPIS 0,8 FATHEAD MINNOW UNID CYPRINID CHANNEL CATFISH UNID LEPOMIS 0.1 UNIDENIIFIED 0.5 ALL SPECIES 1.4 12JUL8B SPECIES UNID NOTROPIS UNID CYPRINID UNID LEPOMIS ALL SPECIES 19JULBB SPECIES COMMON CARP 0.2 UNID NOTROPIS 0.2 FATHEAD MINNOO UNID CYPRINID 0 0.2 UNID LEPOMIS ALL SPECIES 0.5 26JULBB SPECIES UNID NOTFOPIS 0.2 - FATHEAD MINNOW 0.2 - - 0.7 - - UNII CVPRINID 0.7 CHANNEL CATFISH STONELAI UNID LEPOMIS ALL SPECIES 2.4 * - 0.2 0.7 09AUG88 SPECIES UNID NOTROPIS ALL SPECIES 16AUBB8 SPECIES SPOTFIN SHINER 0.2 - - 0.2 - - UNID NOTROPIS -- 0.1I UNID CYPRINID - - - - 0.1 0.1 - 0.4 UNID LEPOMIS 0.5 - - - - - 0.1 0.1 ALL SPECIES 0.9 - - - 0.1 0.1 0.1 0.7 23AUG88 SPECIES UNID NOTROPIS ALL SPECIES 30AUGBB SPECIES COMMON CARP -- - - 0.2 UNID CYPRINID 0.2 - ALL SPECIES 0.2 - - - 0.2

B-33 APPENDIX C

ENTRAINMENT -- NUMBER AND PERCENT OF MACROINVERTEBRATES COLLECTED, 1988

C-1 COMMONNEALTH EDISON COMPANY - BRAIDNOOD STATION - 1986 NACROINVERTEBRATE DATE TOTAL NUMBER AND PERCENT OF ORGANISMS COLLECTED

SITE ------ALL SITES DISCHARGE HORSE CREE2I INTAKE KANKAKEE RIVER COMBINED

SPECIES I I # I t Z ZI #

Hydra 21 1.27 8 0.50 24 0.33 162 1.39 235 1.00 Planariidae 11 0.67 6 0.37 23 0.32 28 0.21 68 0.29 Nematoda 1 0.06 3 0.19 4 0.06 4 0.03 12 0.05 Tardigrada - 1 0.06 - - - - 1 0.00 Naididae - 1 0.06 1 0.01 1 0.01 3 0.01 Chaetogaster diaphanus - - 47 2.92 53 0.74 32 0.25 132 0.56 Dero sp. - - 1 0.06 1 0.01 1 0.01 3 0.01 Dero digitata - 15 0.93 12 0.17 7 0.05 34 0.14 Nais sp. - - 2 0.12 - - - - 2 0.01 Nais bretscheri I 0.06 - - - - 2 0.02 3 0.01 Nais com•unis - - 2 0.12 4 0.06 6 0.05 12 0.05 Nais elinguis - - - 2 0.03 10 0.08 12 0.05 Nais pardalis 3 0.18 35 2.17 19 0.26 27 0.21 B4 0.36 Nais variabilis 31 1.88 49 3.04 89 1.24 96 0.74 265 1.13 Ophidonais serpentina 1 0.06 11 0.cs 17 0.24 80 0.61 109 0.46 Paranais frici 2 0.12 20 1.24 83 1.15 348 2.67 453 1.93 Piguetiella sichiganensis - 1 0.06 1 0.01 19 0.15 21 0.09 Pristina leidyi 2 0.12 - - 4 0.03 6 0.03 Pristina - - 2 0.03 - 2 0.01 Slavina appendiculata 16 0.99 7 0.10 3 0.02 26 0.11 Stylaria lacustris 2 0.12 146 9.06 631 8.78 306 2.34 1085 4.62 Vejdovskyella intereedia - - - 2 0.03 4 0.03 6 0.03 Dranchiura soverbyi 1 0.01 1 0.01 2 0.01 Lienodrilus hoffseisteri 1 0.01 7 0.05 8 0.03 Ise. tub. W/o cc 2 0.03 7 0.05 9 0.04 Enchytracidae 8 0.11 7 0.05 15 0.06 Glossiphonildae 9 0.13 1 0.01 10 0.04 Asellus sp. 1 0.06 1 0.01 - - 2 0.01 Hyalella azteca - - 160 9.93 101 1.40 252 1.93 513 2.12 &auaarus Sp. - 2 0.12 - - 3 0.02 5 0.02 Crangonyx sp. 2 0.12 - - 6 0.08 3 0.02 11 0.05 Astacidae - - 3 0.19 - 6 0.05 9 0.04 Hydracarina (acarina) 13 0.79 6 0.37 71 0.99 101 0.77 191 0.51 Isonychia Sp. 2 0.12 1 0.06 72 1.00 333 2.55 408 1.74 Baetidae - - - 1 0.01 - - 1 0.00 Baetis sp. 3 0.18 69 4.28 720 10.01 741 5.68 1533 6.52 Centroptilue - 25 1.55 192 2.67 313 2.40 530 2.25 Callibaetis - 10 0.62 167 2.32 452 3.46 629 2.68 Pseudocloeon sp. 59 6.00 13 0.81 445 6.19 585 4.49 1142 4.66 Bietisca sp. - - 7 0.10 11 0.08 18 0.08 Baetisca bajoleovi - - 1 0.01 7 0.05 9 0.03 Heptageniidie 1 0.06 4 0.25 40 0.56 36 0.28 91 0.34 H. eaculipennis 2 0.12 37 2.30 153 2.13 893 6.84 1085 4.62 Neptagenia sp. - - - 7 0.05 7 0.03 Heptagenia flavescens - - 2 0.02 2 0.01 Pseudiron rp. 1 0.06 .20.03 I1 0.08 14 0.06

C-2 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 RACROINVERTEBRATE DATE TOTAL NUMBER AND PERCENT OF ORGANISMS COLLECTED

SITE -.....------..-.-..-.--.------.------.-.-.-.----.------ALL SITES DISCHARGE HORSE CREEK INTAKTE KANKAKEE RIVER COMBINED

SPECIES # I # I # I 1 I ...... -... Heptagenia flavescens 2 0.02 2 0.01 0.06 Pseudiron sp. 2 0.03 11 0.08 14 0.06 Stenacron sp. 0.12 8 0.50 27 0.38 76 0.58 113 0.48 Stenoneaa sp. 1.03 3 0.19 67 0.93 417 3.19 504 2.14 Stenonesa intergrum 1 0.01 14 0.11 15 0.06 Stenonema pulchellum 0.06 0.01 7 0.05 9 0.04 Stenonema tersinatum 0.55 163 1.25 172 0.73 Stenoeaa tripunctatus 2 0.12 2 0.01 Ephemerella needhami 2 0.02 2 0.01 Serratella frison] 0.01 1 0.00 Tricorythodes sp. 0.55 32 1.99 725 10.08 453 3.47 1219 5.19 Brachycercus sp. 1 0.01 166 1.27 167 0.71 Caenis sp. 0.79 61 3.78 158 2.20 1199 9.18 1431 6.09 Pentagenra vittigera 0.01 1 0.00 Potamanthus sp. 0.06 5 0.31 20 0.28 95 0.73 121 0.51 Ephemeridae 0.06 7 0.05 8 0.03 Ephemera sp. 2 0.12 2 0.02 4 0.02 Hexagenia sp. 1 0.06 469 6.52 913 6.99 1363 5.88 Ephoron sp. 6 0.37 39 0.54 737 5.64 782 3.33 Coenagrionidae 0.06 7 0.43 182 2.53 224 1.72 414 1.76 Argia sp. 1 0.06 4 0.06 8 0.06 13 0.06 Enallagma sp. 0.06 2 0.03 4 0.03 7 0.03 Aes, nidae 4 0.06 5 0.04 9 0.04 Gomphidae 4 0.03 4 0.02 Libellulidae 3 0.04 1 0.01 4 0.02 Plecoptera 1 7 0.10 5 0.04 12 0.05 Perlidae 0.06 0.06 2 0.03 3 0.02 7 0.03 Perlesta sp. 1 0.01 0.01 2 0.01 Isoperla sp. 0.01 15 0.11 16 0.07 Gerridae 5 0.07 5 0.02 Netrobates sp. 0.06 0.00 Belastomatidae 1 0.06 2 0.03 2 0.02 5 0.02 Corixidae 1 0.06 19 1.18 128 1.78 457 3.50 605 2.57 Corydalus cornutus I 0.01 1 0.00 Climacia sp. 16 0.99 I 0.01 17 0.07 Trichoptera 0.06 0.01 I0 I 0.08 12 0.05 Chisarra obscura 16 0.99 0.11 24 0.10 Polycentropodidae I 0.01 1 0.00 Cyrnellus fraternus 34 2.06 5 0.07 39 0.17 Neureclipsis I 0.06 0.01 2 0.01 Polycentropus sp. 1 0.06 12 0.09 13 0.06 Hydropsychidae 2 0.12 0.01 2 0.02 5 0.02 Cheusatopsyche sp. 11 0.68 6 0.08 2 0.06 25 0.11 Hydropsyche sp. 5 0.31 2 0.03 2 0.02 9 0.04 1 Hydropsyche betteni 0.01 3 0.00 Hydropsyche orris 3 0.18 3 0.01

C-3 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1998 NACROINVERTEBRATE DATE TOTAL NUMBER AND PERCENT OF ORGANISMS COLLECTED

SITE -----..---...-..---.-.--...------.-.....-.--..-...- ALL SITES DISCHARGE HORSE CREEL INTAKE KANKAKEE RIVER COMBINED

SPECIES # Z I I I Z I Z I I .... "----'"-...... --...... - ° ...... Hydropsyche phalerata 1 0.06 2 0.12 16 0.22 112 0.86 131 0.56 Syaphitopsyche sp. - 2 0.12 - 1 0.01 3 0.01 Sysphitopsyche bifida - - - - 1 0.01 - - 1 0.00 Potasyja flava 279 16.90 - - 1 0.01 21 0.16 301 1.28 Protoptila sp. - - 1 0.06 5 0.04 6 0.03 Hydroptilidae I 0.06 1 0.06 5 0.04 7 0.03 Hydroptila 3 0.19 9 0.56 74 1.03 40 0.31 126 0.54 Oxyethira sp. - 9 0.56 141 1.96 231 1.77 381 1.62 Nectopsyche sp. 1 0.06 1 0.06 1 0.01 3 0.02 6 0.03 Oecetis sp. - - 1 0.06 3 0.04 3 0.02 7 0.03 Triaenodes sp. - - - - - 1 0.01 1 0.00 Paraponyx sp. - 8 0.11 10 0.08 18 0.08 Pyralidae - - 4 0.06 1 0.01 5 0.02 Petrophila sp. - - 0.06 - 5 0.04 6 0.03 Laccophilus sp. - - - 1 0.01 1 0.00 Dineutus sp. - - 7 0.05 7 0.03 Gyrinus sp. - - 1 0.06 - - - - 1 0.00 Peltodytes sp. - - 2 0.12 2 0.03 3 0.02 7 0.03 Dubiraphia sp. - 1B 1.12 2 0.03 3 0.02 23 0.10 Nacronychus glabratus 2 0.12 t0 0.62 16 0.22 34 0.26 62 0.26 Stenelmis sp. 10 0.61 31 1.92 20 0.28 100 0.77 161 0.68 Hydrophilidae - - - 1 0.01 1 0.00 Tropisternus sp. - - 1 0.01 3 0.02 4 0.02 Enochrus sp. - - 6 0.05 6 0.03 Psephenus herricki - 1 0.06 - - - 1 0.00 Ceratopogonidae - - 5 0.31 7 0.10 18 0.14 30 0.13 Chaoborus sp. 4 0.24 - - - - - 4 0.02 Chaob. punctipennis 58 3.51 5 0.31 6 0.08 24 0.18 93 0.40 Tanypus sp. - - 2 0.12 4 0.06 - 6 0.03 Procladius sp. 19 1.15 36 2.23 216 3.00 447 3.42 718 3.05 Coelotanypus sp. 12 0.73 - - 13 0.18 26 0.20 51 0.22 Ablabesayia sp. 3 0.18 17 1.05 123 1.71 329 2.52 472 2.01 Labrundinia sp. - - 7 0.43 33 0.46 203 1.55 243 1.03 Larsia sp. 32 1.99 144 2.00 146 1.12 322 1.37 Thienemannieyia series 1 0.06 21 1.30 36 0.50 52 0.40 110 0.47 Thienemanniayia sp. 3 0.19 1 0.01 5 0.04 9 0.04 Diasesa sp. 1 0.06 1 0.01 - 2 0.01 Corynoneura sp. - - - - 2 0.02 2 0.01 Ceryoneura 1 0.06 - - - - 1 0.00 Thienseanniella sp. 10 0.62 18 0.25 14 0.11 42 0.18 Cricotopus Sp. 116 7.03 8 0.50 13 0.18 47 0.36 184 0.78 Cricotopus tremulus grp. 3 0.18 3 0.19 5 0.07 8 0.06 19 0.08 Cricotopus bicinctus grp. 13 0.79 6 0.37 30 0.42 48 0.37 97 0.41 Cricotopus trifascia grp. - 9 0.56 4 0.06 12 0.09 25 0.11 Cricotopus sylvestris grp. 5 0.30 - - 56 0.78 21 0.16 82 0.35 Eukiefferiella sp. - 2 0.03 - 2 0.01

C-4 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATE TOTAL NUMBER AND PERCENT OF ORGANISMS COLLECTED

SI1E ------.-..-.------..--..--...---....-..------.. ALL SITES DISCHARGE HORSE CREEK INTAKE KANKAKEE RIVER CONBINED

SPECIES I I I 1 I I I 1 I I

Hydrobaenus sp. I 0.0c 1 0.06 2 0.03 4 0.02 Limnophyes sp. I 0.06 - - 1 0.00 Orthorladius sp. 2 0.12 49 3.04 62 0.86 IB 0.14 131 0.56 Nanocladius sp. 44 2.67 9 0.56 9 0.13 88 0.67 150 0.64 Parakrefferiella 154 9.33 33 2.05 10 0.14 8 0.06 205 0.87 Rheocricotopus - - 1 0.06 4 0.06 1 0.01 6 0.03 Saittia - - - 1 0.01 1 0.00 Tvetenia discoloripes grp. I 0.06 - - - 4 0.03 5 0.02 Chironomus - - 6 0.37 30 0.42 25 0.19 61 0.26 Demicryptochironomus - - 1 0.01 1 0.01 2 0.01 Cryptochironomus 8 0.48 2 0.12 4 0.06 32 0.25 46 0.20 Cryptotendipes - - 2 0.12 8 0.11 14 0.11 24 0.10 Dicrotendipes 396 23.99 I(, 0.62 47 0.65 68 0.52 521 2.22 Endochrionosus - - I 0.06 - - - 1 0.00 6lyptotendipes - - 1 0.06 - - - - 1 0.00 Harnischia 10 0.6! - - 5 0.07 10 0.08 25 0.11 Nicrotendipes - - 1 0.06 3 0.04 1 0.01 5 0.02 Parachironosus 102 6.12 I 0.06 3 0.04 19 0.15 125 0,53 Parathiron. cf frequens - - - 1 0.01 - 1 0.00 Paracladopelma 1 0.06 3 0.02 4 0.02 Paralauterborniella 1 0.06 - 1 0.00 Paratendipes - 1 0.06 6 0.08 - - 7 0.03 Polypedilum sp. 9 0.55 19 1.18 105 1.46 69 0.53 202 0.86 Polypedilue convictue 12 0.73 64 3.17 553 7.69 228 1.75 857 3.65 Polypedilum scalaenum - 1 0.06 18 0.25 3 0.02 22 0.09 Polypedilum simulans - - - - 1 0.01 1 0.01 2 0.01 Stenothironomus - - 1 0.06 1 0.01 1 0.01 3 0.01 Sictochironomus - 3 0.19 3 0.04 6 0.03 Tribelos - 2 0.12 3 0.04 1 0.01 6 0.03 Cladotanytorsus 4 0.25 1 0.01 - - 5 0.02 Paratanytarsus - 3 0.19 1 0.01 6 0.05 10 0.04 Rheotanytarsus 60 3.63 23 1.43 57 0.79 207 1.59 347 1.48 Stempellina - 3 0.19 - - - - 3 0.01 Tanytarsus 10 0.61 70 4.34 56 0.78 70 0.54 206 0.88 lavrelia ------1 0.01 1 0.00 Culicidae - - 2 0.03 4 0.03 6 0.03 Anopheles sp. 3 0.19 - - - - 3 0.01 Culex sp. 1 0.06 4 0.06 - - 5 0.02 Psychoda 10 0.62 9 0.13 17 0.13 36 0.15 Simuliidae 1 0.06 1 0.01 2 0.02 4 0.02 Simulium 4 0.24 40 2.48 36 0.50 15 0.11 95 0.40 Tipula sp. - - 1 0.06 - - - 1 0.00 Eapididae - - - - 1 0.01 - - 1 0.00 Stratomyiidae - - 1 0.06 1 0.01 1 0.01 3 0.01 Tabanus sp. - - - 1 0.01 1 0.00 Pleuroceridae - 2 0.02 2 0.01

C-5 COMMONWEALTH EDISON COMPANY - DRAIDWDOD STATION - 1988 MACROINVERTEPRATE DATE TOTAL NUMBER AND PERCENT OF ORGANISMS COLLECTED

SITE ------ALL SITES DISCHAHBE HORSE CREEK INTIAE KANKAKEE RIVER COMBINED

SPECIES I # I #1 2 I# I I

Pleurocera sp. 6 0.05 6 0.03 6oniobasis sp. 1 0.01 1 0.00 Lymnaea sp. 1 0.06 6 0.08 7 0.03 Physidae 1 0.01 1 0.00 Physa sp. B 0.4B 81 5.02 242 3.37 123 0.94 454 1.93 P1anorbidae - - - 2 0.02 2 0.01 Gyraulus sp. 1 0.06 34 0.47 26 0.20 61 0.26 Helisoma sp. I 0.06 - - 1 0.00 Ferrissia sp. - 6 0.08 10 0.08 16 0.07 Corbicula fluminea 1 0.06 - 9 0.07 10 0.04 Sphaeriidae 4 0.24 2 0.12 1 0.01 - - 7 0.03 Unidentified 3 0.18 I 0.01 1 0.01 5 0.02

TOTAL MACROINVERTEBRATES 1651 10"w.00 1612 100.00 7190 100.00 13056 100.00 23509 100.00

C-6 APPENDIX D

ENTRAINMENT -- MACROINVERTEBRATE DENSITIES, 1988

D-1 COMMONNEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 MACROINVERTEDRATE DATA DENSITY OF NACROINYERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ------SITE:DISCHARGE ------DATE: 12APR88 TIME: DAY NIGHT LOC.: LOC.: DI DI DEPIH DEPTH MID MID REP: REP: 2 2 (DEN) (DEN)

SPECIES Hydra 1.1 0.2 P anariidae 0.2 Nematoda - 0.2 Nais pardalis 0.6 Nais variabilis 2.3 0.6 Enallagma sp. . 0.2 Hydropsyche orris . 0.2 Potalyia flava 7.9 8.4 Hydroptilidae 0.2 Nectopsyche sp, 0.2 Chaob. punctipennis 0.2 - Cricotopus sp. 1.5 0.6 Hydrobaenus sp - 0.2 ParakrefferielIa 15.1 14.8 Dicrotendipes 0.2 - Rheotanytarsus L.1 0.6 Unidentified 0.6 TOTAL NACROINVERTEBRATES 30.5 26.6

D-2 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 199B MACROINVERTEDRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) --.--.--...... -..------SITE=DISCHARGE ...... DATE: 03MAY98 TIME: DAY NIGHT LOC.: LOC.: DI DI DEPTH DEPTH MID MID REP: REP: I I (DEN) (DEN)

SPECIES Hydra 0.9 1.5 Planariidae 0.2 0.2 Nais variabilis 0.4 0.3 Paranais frici 0.2 0.2 Crangonyx sp. 0.2 - Hydracarina (acarina) - 0.2 Isonychia sp. - 0.3 Stenacron sp. - 0.2 Stenonema sp. - 1.7 Stenonesa puichellum 0.2 Stenonema terminatua 0.9 Tricorythodes sp. 0.3 Caenis sp. 0.5 Potasanthus sp. 0.2 Perlidae 0.2 Hydropsyche orris 0.3 Potamyia flava 7.2 11.5 Hydroptila . 0.2 Macronyckus glabratus - 0.3 Stenelsis sp. . 1.5 Chaob. punctipennis 0.2 0.2 Procladius sp. 0.2 0.3 Thienemannimyia series 0.2 Cricotopus sp. 1.8 0.7 Nanocladius sp. 0.9 0 Dicrotendipes 0.2 0.3 Polypedilum sp. - 0.2 Rheotanytarsus 1.1 0.9 Tanytarsus - 0.2 Sioulium - 0.2 TOTAL MACROINVERTEDRATES 13.3 23.9

D-3 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (I/1003) -..- ...... -...... ------. SITEaDISCHARGE ...... DATE: 17MAY8B TIRE: DAY NIGHT LOC.: LOC.: 01 DI DEPTH DEPTH KID MID REP: REP: 2 2 (DEN) (DEN)

SPECIES Planariidae 0.2 - Nais bretscheri - 0.2 Nais variabilis o.6 1.8 Crangonyx sp. 0.2 Hydracarjna (ararina) - 0.4 Pseudocloeon sp, 0.2 18.3 Heptageniidae - 0.2 Pseudiron sp. - 0.2 Stenacron sp. - 0.2 Stenonesa sp. 1.0 Stenonesa teriknatum - 0.8 Tricorythodes jp, 0.6 Cienis sp. 0.4 0.4 Ephemeridae - 0.2 CyrneIus fraternus 0.2 5.9 Potayjia flava - 0.2 Stenelmis sp. - 0.2 Chaob. punctipennis - 2.3 Procladius sp. 0.4 1.6 Coelotanypus sp. . 0.4 Ablabesmyia sp. - 0.4 Cricotopus Sp. 1.2 1.2 Cricotopus tresulus grp. 0.2 - Cricotopus bicinctus grp. - 0.8 Cricotopus sylvestris gyp. - 0.2 Orthocladius sp. 0.4 - Nanocladius sp. 1.8 0.8 Tvetenia discoloripes grp. 0.2 Dicrotendipes 0.4 2.3 Polypedilus sp. . 0.2 Rheotanytarsus 0.2 1.4 Tanytarsus - 0.6 Simulium - 0.2 TOTAL MACROINVERTEBRATES 6.5 42.9

D-4 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) --.- ...-...... ------SITE=DISCHARGE ------DATE: 07JUN88 TI1E: DAY NIGHT LOC.: LOC.: Di DI DEPTH DEPTH MID KID REP: REP: 1 2 (DEN) (DEN)

SPECIES Planariidae 0.2 Hydracarina (acarina) 0.4 0.4 Baetis sp. 0.4 0.2 Pseud,:cloeon sp. 0.2 - H. saculipennis - 0.4 Cyrnellus fraternus - 0.2 Potamyia flava 0.4 4.5 Hydroptila 0.2 Chaoborus sp. - 0.7 Chiob. punctipennis - 2.5 Procladius sp. - 1.1 Coelotanypus sp. - 1.8 Cricotopus sp. 7.3 6.9 Cricotopus treaulus grp. 0.4 Cricotopus bicinctus prp. 0.4 0.7 Nanocladius sp. 2.3 0.7 Cryptochironosus - 1.4 Dicrotendipes 0.2 !0.8 Parachironomus - 3.6 Polypedilus sp. - 1.1 Polypedilum convictum 0.5 - Rheotanytarsus 0.2 0.7 Si ulium 0.2 - Lymnaea sp. 0.2 - Physa sp. 0.7 - TOTAL NACROINVERTEBRATES 13.7 37.9

D-5 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF RACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/10.3) ------.--...... ------SITE=DISCHARGE ------DATE- 28JUN88 TIME: DAY NI6HT LOC.: LOC.: Dl DI DEPTH DEPIH MID MID REP: REP: 1 2 (DEN) (DEN)

SPECIES Planariidae 1.4 Ophidonais serpentina 0.1 Stylaria Iacu sris 0.3 Hydracarina (acarina) 0.1 1.2 Pseudocloeon sp. 0.4 - Stenoneaa sp. 0.1 0.2 Tricorythodes sp. 0.3 0.5 Caenis sp, 0.3 0.9 CoenagTionidae 0.2 Corixidae 0.1 Cyrnellus fraternus 0.1 0.2 Neureclipsis 0. -2 Hydropsyche phalerata - 0.2 Potalyia flava 7.3 2.5 Hydroptila 0.1 - Chaob. punctipennis 3.3 1.6 Ablabestyia sp. 0.4 Cricotopus bicinctus grp. 0.4 - Cricotopus sylvestris grp. 0 . 2 Nanocladius sp. 0.6 1.2 Dicrotendipes 0.3 72.7 Harnischia 2.3 Parachironomus 0.3 19.5 Polypedilum sp. 0.1 - Polypediluo convictue 1.3 - Rheotanytarsus 0.3 5.8 Tanytarsus 0.1 1.2 Sioulium 0.1 - sp. 0.6 - SpbaeriidaePhysa - 0.9 TOTAL MACROINVERTEBRATES 18.0 111.4

D-6 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - I988 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1043) ------...... ------SITEzHORSE CREEK ...... DATE: 19APRBB TINE: DAY LOC.:

HI DEPTH BOT REP: 2 (DEN)

SPECIES Nais paodalis 0.2 Heptageniidae 0.2 Stenoema tripunctatus 0.2 Hydroptilidae 0.2 Psephenus herricki 0.2 Rheotanytarsus 0.2 TOTAL M CROINVERTEBRAIES 1.0

D-7 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ...... ------SITEcHORSE CREEK ------DATE: 26APRBB TIME: NIGHT LOC.: HI DEPTH DOT REP: 4 (DEN)

SPECIES Neeatoda 0.2 Dero sp. 0.2 Nais sp, 0.2 Nais pardalis 1.0 Nais variabilis 0.4 6a aaus sp. 0.2 Pseudocloeon sp. 0.2 Stenacron sp, 0.4 Caenissp. 0.4 Po slanus sp. 0.2 Ephemera sp. 0.2 Argia sp, 0.2 Perlidae" 0.2 Corixidae 0.6 Cbiearra obscura 0.2 Ablabesayia sp. 0.4 Diamesa sp. 0.2 Hydrobaenus sp. 0.2 Orthocladius sp. 0.4 Rheocri(otopus 0.2 Polypedilum sp. 0.2 Tanytarsus 9.3 Simulium 1.2 TOTAL MACROINVERTEBRATES 16.2

D-8 COMNONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 19B MIACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------...... ------SITE:HORSE CREEK ------DATE: 03MAY88 TIME: DAY NI6HT LOC.: LOC.: Hl HI DEPTH DEPTH DOT DOT REP: REP: 3 2 (DEN) (DEN)

SPECIES Chaetogaster diaptanus - 1.8 Nais pardalissp. - 4.50.2 Nais variabilis 0.4 2.7 Paranais frii - 3.5 Stylaria lacustris 0.4 0.4 Pseudocloeon sp. - 0.2 Stenacron sp. 0.2 Caenis sp. 0.2 Dubiraphia sp. 0.2 - Tanypus sp. 0.2 Ablaessyla sp. 0.2 Labrundinia sp. 0.6 Larsia sp. 0.2 Thienemannimyia series 0.8 Ceryoneura 0.2 Thienemanniella sp. 0.2 Cricotopus bicinc tus grp. - 0.2 Cricotopus trifascia grp. - 0.4 Lianophyes sp. - 0.2 Orthocladius sp. 1.4 4.9 Nanocladius sp. . 1.4 Parakrefferiella - 3.1 Chironosus 0.2 Cryptochironosus 0.2 Cryptotendipes 0.2 Dicrotendipes 0.2 Paracladopelma - 0.2 Paratendipes 0.2 - Polypedilum sp. 0.2 - Polypedilum convictum 1.2 0.4 Polypedilum scalaenua 0.2 3. ParatanytirstsCla0otanytorsus -. 0.2 Tanytarsus 0.- 3.5 Simulius - 1.2 Stratomyiidae - 0.2 Corbicu iafluminea - 0.2 TOTAL RACROINVERTEBRATES 5.3 33.9

D3-9 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ...... ------SITE:HORSE CREEK ------DATE: IOMAYBB TIME: NIGHT LOC.: HI DEPTH DOT REP: I

(DEN)

SPECIES Tardigrada 0.! Chaetogaster diaphanus 1.7 Nais pardalis 0.6 Nais variabilis 0.2 Paranais frici 0.1 Slavina appendiculata 0.2 Stylaria acustris 0.5 Hydracarina (acarina) 0.1 Pseudocloeon sp. 0.4 Erh::era s 0.1 Ch rra olscura 0.1 Dubiraphia sp. 0.1 Ceratopogonidae 0.1 Procladi s sp. 0.1 Thienemannie~la sp. 0.1 Orthocladius sp. 1.9 Parakrefferiel a 1.9 Chironomus 0.2 Cryptotendipes 0.1 Dicrotendipes 0.5 Polypedilum sp. Polypedilum convictum 0.!0.1 Stictochironomus 0.2 Paratanytarsus 0.2 Rheotanytarsus 0.9 Stempellina 0.2 SiA OiE 1.1 TOTAL MACROINVERTEBRATES 1-2.4

D-10 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1980 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ---- ...-...... ------SITE:HORSE CREEK ------DATE: 17HAY88 TIME: DAY LOC.: HI DEPTH BOT REP: 2 (DEN)

SPECIES Chaetogaster diapanus 1.8 Nais variabilis 0.4 Ophidonais serpentina 0.4 Paranais frici 0.3 Hydracarina (acarina) 0.1 Baetis sp. 0.1 Dubiraphia sp. 1.3 Stenelmis sp. 0.1 Ceratopogonidae 0.1 Procladius sp. 0.3 Thienesanniella sp. 0.1 Cricotopus s•, 0.1 Cricotopus bicinctus gyp. 0.3 Orthocladius sp. 0.1 Parakrefferiel1a 0.3 Chironosus 0.3 Pol ypedilu. convictus 0.9 Tribelos 0.1 Rheotanytarsus 0.1 Ste.peli ma 0.1 TOTAL NACROINVERTEBRATES 7.9

D-11 COMMONMEALTN EDISON COMPANY - BRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) -.------...... ------SITE:HORSE CREEK ------.------DATE= 24MAYBB TIIE: NIGHT LOC.: HI

DEPTH DOT REP: 2 (DEN)

SPECIES Chaetogaster diaphanu5 1.9 Nais pardalis 0.5 Nais variabilis 6.3 Ophidonais serpentina 0.3 S avina appendlculata 0.3 StYilara i acutris 1.9 As taddae 0.3 Baetis sp. 5.5 Centroptilm 0.5 Pseudocloeon sp. 0.3 H. maculipennis 0.8 Stenacron sp. 0.3 Ephoron sp. 0.3 Stenelmis sp. 0.3 labrundinia sp. 0.3 Cricotopus sp. 1,4 Cricotopus treau]us grp. 0.3 Cricotopus bicinctus grp. 0.3 Cnicotopus trifascia grp. 1.5 Nanocladius Parakrefferiellasp. 0.50.3 Chironomus 0.3 Polypedilum sp. 0.5 404 TribelosPoIypedilua convictu 0.3 Rheotanytarsus 1.9 Tanytarsus 0.5 Sim@uliidae 0.3 SiluJiua 4.4 TOTAL MACROINVERTEBRATES 37.4

D-12 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 19B8 NACROINVERTEBRATE DATA DENSITY OF RACROINVERTBRATES FOR EACH DATE AT EACH SITE (011003) ------SITEzHORSE CREEK ------

DATE: 07JUN88 TIME: NIGHT loc.:

HI

DEPTH DOT REP: 3 (DEN)

SPECIES Nematoda 0.2 Dero digitata 2.7 Nais variabilis 0.4 Ophidonais serpentina [.1 Piguetiella sichiganensis 0.2 Slavina appendiculata 2.2 Hyalella azteca 0.4 Astacidae 0.4 Baetis sp. 0.9 CentroptLlum 1.8 Callibaetis 0.2 Pseudocloeop sp. 0.2 H. maculipennis 1.3 Stenacron sp. 0.2 Tritorythodes sp. 0.4 Caenis sp. 0.9 Potamanthus sp. 0.2 Ephoron sp. 0.4 Corixidae 0.7 Dubiraphia sp. 0.9 Stenelois sp. 0.2 Ceratopogonidae 0.2 Ablabesmyia sp. 0.2 Thienesannilyta series I.t Cricotopus sp. 0.4 Dicrotendipes 0.7 Endochrionomus 0.2 Parachironosus 0.2 Polypedilum sip. 0.4 Polypedilum convictuo 2.0 Rheo anytarsus 0.7 Physais. 2.0 TOTAL NACROINVERTEDRATES 24.5

D-13 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERT7RATES FOR EACH DATE AT EACH SITE (0/1003) ...... ------SITE:HORSE CREEK ...... DATE: I4JUNBB TIME: DAY LOC.: HI DEPTH BOT REP: 2

(DEN)

SPECIES Callibaetis 0.2 Pseudocloeon sp. 0.2 H. &aulipennis 0.6 Caenis sp. 1.0 Ephoron sp, 0.2 Hydroptila 0.4 Stene lis sp. 0.2 Thienemanni yia series 0.2 Thienemanniella sp. 0.4 Cricotopus bicinctus grp. 0.4 Dicrotendipes 0.2 Polypedilus convictus 1.0 Phyjsa sp. , 0.6 TOT ALMACROINVERTEBRATES 5.8

D-14 COMMDNWEALTH EDISON COMPANY - BRAIDNODD STATION - 1989 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (U/1003) ...... ------SIIE=HORSE CREEK ------DATE: 21JUN88 TIME: NIGHT LOC.: HI DEPTH DOT REP: 4 (DEN)

SPECIES Hydra 0.2 Hyalella arteca 0.8 Hydracarina (acarina) 0.2 Isonychia sp. 0.2 Baetis sp. 1.5 Centroptilus 2.3 Pseudocloeon sp. 0.2 H. eaculipennis 3.6 Tricorythodes sp. 0.6 Caenis sp. 1.3 Ephoron sp. 0.4 Corixidae 1.3 Chioarra obscura 0.2 Cheumatopsyche sp. 0.8 Hydropsyche sp. 0.6 sp. 0.4 Hy~dropti/aSylphltopsyche 0.2 Procladius sp. 0.4 Ablabesmyia sp. 0.2 Thieneaanniy iaseries 0.2 Thienemanniella sp. 0.2 Polypedilus sp. 0.6 Polyredilus convictum 1.1 Situ iua 0.2 Tipula sp. 0.2 Sphaeriidae 0.2 TOTAL HACROINVERTEDRATES 18.5

D-15 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/10m3) -..----...... ------SITE'HDRSE CREEK ------DATE: 28JUN99 TINE: DAY lDC.: HI DEPTH BOT REP: 2 (DEN)

SPECIES Baetis sp. 0.2 Pseudocloeonsp. sp. 0.2 Ceenis 0.2 Chimarra obicura 0.2 Hydropsyche sp. 0.2 Labrundinia sp. 0.2 Thienemannimyia sp. 0.2 Sieuliua 0.2 TOTAL MACROINVERTEPRATES 1.7

D-16 CONNONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE Al EACH SITE (0I1003) ...... ------. SITE:HORSE CREEK ------DATE: 05JUL6B TINE: NI6HT LOC.: HI DEPTH Bar REP: 2 (DEN)

SPECIES Hyalella azteca 0.2 Baetis sp. 1.1 Pseudocloeon sp. 0.6 H. uaculipennis 0.6 Stenacron sp. 0.2 Stenonema sp. 0.4 Stenoela tripunctatus 0.2 Tricorythodes sp. 1.9 Caenis sp. IJ Netriobates sp. 0.2 Cori idue 1.1 Chimarra obscura 0.4 ydropsychidae 0.2 Cheudatopsyche sp. 0,2 Hydropsyche phalerata 0.4 Hydroptila 0.4 Petrophila sp. 0.2 Dubiraphia sp. 0.2 Nacronychus glabratus 0.4 Procladius sp. 0.2 Labrundinia sp. 0.4 Thienemannioyia series 0.2 Polypedilum convictum 0.4 Stenochironomus 0.2 Stictochironoaus 0.2 Rheotanytarsus 0.2 Tanytarsus 0.2 Psychoda 0.2 Physa sp. 0.6 TOTAL RACROINVERTEBRATES 13.4

D-17 COMNONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198B MACROINVERTEDRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) - . . ..------.------SITE=HORSE CREEK ------DATE: 26JUL88 TIME: DAY LOC.: HI DEPTH DOT REP:

(DEN)

SPECIES Hydra 0.9 Nais cosiunis 0.3 Nais variabilis 0.6 Ophidonais serpentina 0.3 Pristina leidyi 0.3 Stylaria lacustris 9.3 H. maculipernis 0.3 Coenairionidae 0.6 Be astobatidae 0.3 Hydroptila 0.6 Oxyethira sp. 0.3 Nectopsyche sp,. 0.3 Macronychus "gIabratus 0.6 Ablabesoyia sp. 0.3 Thienemannimypa seriet 0.6 Cryptochironomus 0.3 Microtendipes 0.3 Parilauterbornielia 0.3 Polypedilum Eonvictum 1.2 Psych oda 0.3 Sphaeriidae 0.3 TOTAL MACRO[NVERTEBRATES 18.0

D-18 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINYERTDRATES FOR EACH DATE AT EACH SITE (0/10a3) ---- ..-...... ------SITExHORSE CREEK ------DATE: 09AiJG88 TIME: NIGHT LOC.: HI DEPTH OOT REP: 4 (DEN)

SPECIES Planariidae 0.6 Nais communis 0.2 Pristina ]eidyi 0.2 Stylaria lacustris 12.4 Hyalella azteca 18.8 Gassarus sp. 0.2 Hydracarina (acarina) 0.4 Baetis sp, 3.1 Centroptilum 0.4 Callibaetis 0.8 H. maculipennis 0.8 Stenacron sp. 0.4 Tricorythodes sp. 1.4 Caenis sp. 4.1 Potamanthus sp. 0.2 Coenagrionidae 0.6 Corixidae 0.2 Clisacia s . 2.7 Chisarra oLscura 1.0 Polycentropus sp. 0.2 Cheusatopsyche sp. 1.2 Hydropsyche sp. 0.2 Hydropltla 0.2 Oxyet ira sp. 0.4 Gyrinus sp. 0.2 Peltodytes sp. 0.2 Dubiraphia sp. 0.2 Nacronychus glabratos 0.4 Stenelais sp. 5.2 Chaob. punctipennis 1.0 Tanypus sp. 0.2 Procfadius sp. 6.2 Ablabesmyia sp. 1.7 Larsia sp. 3.3 Thienesannimyia series 1.2 Tbienemannimyii sp. 0.2 Thienesanniella sp. 0.2 61yptotendipes 0.2 Po ypedilum sp. 0.6 Polypedilue convictus 0.8 Rheot anytarsus 0.2 lawytarsus 1.2 Anopheles sp. 0.6 Culex s 0.2 Psychoda 0.4 .8 TOTALPh ys a IAiROINVERTEBRATESs p .A4 80.6

D-19 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (6/1003) ...... ------SITEzHORSE CREEK ------DATE= 23AUGBB TINE: DAY NIGHT LOC.: LOC.: HI HI DEPTH DEPTH BOT BOT REP: REP: I I (DEN) (DEN)

SPECIES Hydra - 0.4 Planariidae - 0.4 Chaetogaster diaphanu• 0.4 0.6 Ophidonais serpentina - 0.2 Slavina appendicolata 0.2 0.2 Stylaria lacustris 0.6 6.1 Asellus sp. 0.2 - Hyalella azteca - 10.4 Baetis sp. 0.6 0.9 Centroptilum - 0.2 Callibaetis - 0.6 Stenoneia sp. 0.2 - Caenis sp. " 0.6 Coenagrionidae - 0.4 Corixidae - 0.2 Chiaarra obscura 0.2 0.4 Hydropsychidae 0.2 - Protoptila sp. - 0.2 Hydroptila - 0.2 Oxyethira sp. 0.2 0.6 Oecetis sp. - 0.2 Dubiraphia sp. 0.2 - macronychus glabratus 0.4 - Stenelmis sp. 0.2 Ablabeseyja sp. - 0.4 Larsia sp. 0.2 2.2 Thienemanniayia series 0.2 - Thienemannimyia sp. 0.2 - Thienemanniella sp. - 0.4 Dicrotendipes 0.2 - Polypedilum sp. - 0.6 Polypedilum convictua - 0.4 Psychoda - 0.6 Sioulium 0.2 - Physa sp. 0.2 8.2 Gyraulus sp. 0.2 Hel'so"a ip. 0.2 TOTAL NACROINVERTEBRATES 5.4 36.2

D-20 COMMONWEALTH EDISON COMPANY - DRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------...... ------SITE:HORSE CREEK ------DATE: 30AUG88 TIME: NIGHT LOC.: Hl DEPTH DOT REP: 2 (DEN)

SPECIES PlanariidaE 0.2 Dero digitata 0.6 Stylaria lacustris 1.2 Hyalella azteca 2.7 Hydracarina (acarina) 0.2 Baetis sp, 1.2 Centropllum 0.2 Callibaetis 0.2 HeptagenildaE 0.6 Tricorythodes sp. 2.3 Caenis s. 2.9 [email protected]. 0.4 Hexagenia sp. 0.2 Climacia sp. 0.6 Trichoptera 0.2 Chilarra obscura 0.4 Oxyetkra sp. 0.4 Peltodytes sp. 0.2 Macronychus glabratus 0.4 Ceratopogon:dae 0.4 Ablabesmyia sp. 0.2 Larsia s p. 0.8 Po l0.6 Polypdius onvictus 0.2 RheoI nytarsu5 0.2 Psychoda 0.6 Physa sp. 0.8 TOTAL MACROINVERTEBRATES 19.2

D-21 COMMONWEALTH EDISON COMPANY - DRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ...... ------SITE=HORSE CREEK ------DATE: 06SEP68 TIME: DAY LOC.: HI DEPTH DOT REP: 4 (DEN)

SPECIES Hydra 0.6 Neaatoda 0.3 Naididae 0.3 Slavina appendiculata 0.3 Stylania ]acustris 0.6 Hyalella azteca 0.3 Baetis sp. 1.0 Stenellis sp. 0.3 Thieneanniella sp. 0.3 Polypedilum convictum 0.3 Rheotanytarsus 0.3 TOTAL MACROINVERTEBRATES 4.8

D-22 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 199B MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE At EACH SITE (l/10m3) ...... ------SITE=INTAKE ------DATE: 19APR88 TIME: DAY NIGHT LOC.: LOC.: It it DEPTH DEPTH TOP TOP REP: REP: 1 2 (DEN) (DEN)

SPECIES Hydra - 0.2 Nesatoda 0.4 - Chaetogaster diaptanu•. 1.2 0.3 Nais collunis . 0.2 Nais pardalis 0.4 0.4 Nais variabilis 0.2 - Ophidonais serpentina 0.2 0.2 Paranais frici 2.2 5.3 Slavina appendiculata 0.2 0.2 Li nodrilus hoffeeisteri - 0.2 Enchytracidae . 0.6 - Hydracarina (acarina) - 0.2 Daetis sp. - 0.2 Baetisca bajoleovi - 0.2 Pseudiron sp. - 0.2 Stenonefa sp. - 0.2 Tricorytt odes sp. - 0.8 Caenis sp. 0.2 0.8 Hexagenia sp. 0.2 1.8 Plecoptera - 0.2 Corixidae - 1.6 Hydropsychidae . 0.2 Hydropsyche phalerata - 0.2 Hydroptila 0.2 0.6 Procladius sp. - 0.4 Ablabesayja sp. - 0.6 Labrundinia sp. - 0.2 Diamesa sp. - 0.2 Orthocladius sp. - 0.6 Chironosus - 0.2 Polypedilue convictum 0.6 1.0 Rheotanytarses 0.2 Tanytarsus - 0.2 Simuliul . 0.2 TOTAL NACROINVERTEBRATES 6.7 19.8

D-23 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTDRATES FOR EACH DATE ATEACH SITE (0/1003) ...... ------SITE:INTAKE ------DATE: 26APRBB TIME: DAY NIGHT LOC.: LOC.: II I1 DEPTH DEPTH DOT TOP REP: REP: 1 2 (DEN) (DEN)

SPECIES Naididae - 0.2 Chaetogaster diaphanus 0.3 - Dero sp. - 0.2 Dero digitata - 0.2 Nais pardalis 0.1 - Nais variabilis 0.3 - Ophidonais serpentina 0.0 0.2 Paranais frici 1.0 2.7 Piguetiella michiganensis 0.2 Slavina appendicu ata 0.1 0.3 Stylaria ]a(ustris - 0.2 Vejdovskyella intereedia - 0.2 Dranchiura soverbyi 0. 2 I.. tub. v/o cc 0.2 Enchytracidae 0.2 0.2 Hyalella azteca 0.2 Daetis sp. - 0.2 Pseudiron sp. - 0.2 Tricorythodes sp. - 0.2 Hexagenla sp. 0.1 1.3 Perhldae 0.1 0.2 Corisidae - 0.6 Hydroptila 0.7 0.8 Dubiraphia sp. 0.2 Stenelais sp. 0.2 Thienesannieyia series 0.1 Cricotopus trifascia .rp. 0.2 Eukiefferiella sp. - 0.2 Ilydrobaenus sp. 0.1 0.2 Orthocladius sp. 0.3 2.3 Chironomus 0.2 Dicrotendipes 0.1 Paratendipes - 0.6 Polypedilua convictua 0.3 0.3 Rheotanytarsus 0.1 - Tanytarsus . 0.6 Simuliu 0.1 0.B Unidentified 0.1 - TOTAL NACROINVERTEBRATES 4.3 12.8

D-24 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1043) ------...... ------SITE:INTAKE ------DATE: 03MAYB8 TIME: DAY NIGHT LOC.: LOC.: It 12 DEPTH DEPTH DOT DOT REP: REP: 2 2 (DEN) (DEN)

SPECIES Paranais frid 0.5 0.1 Hyalella azteca - 0.4 Crangonyx sp. - 0.! Baetis sp. - 0.4 Stenonesa sp. - 0.4 Serratella frisoni - 0.1 Caenis sp, - 0.1 Potalanthus sp. - 0.3 Hexagenia sp. - 0.3 Isoperla sp. - 0.1 Corixidae - 0.1 Chisarra obscura - 0.9 Hydropsyche sp. - 0.1 Hydropsyche betteni - 0.1 Symphitoyyche bulida - 0.1 Hydropti a 0.2 - Stenelmis sp. - 0.3 Procladius sp. - 3.6 Ablabesmyia sp. 0.1 Larsia sp. 0.3 Thienemannimyia series - 0.7 Cricotopus sp. 0.2 - Orthocladius sp. 1.2 2.3 ParakrefferielIa - 0.1 Rheocricotopus - 0.4 Chironolus - 0.1 Paratendipes - 0.3 Polypedilum convictum 0.7 0.1 Tribelos - O.l Paratanytarsus - 0.1 Rheotanytarsus - 0.3 Tanytarsus . 0.3 Simulium - 0.! TOTAL MACROINVERTEBRATES 2.8 13.7

D-25 CONNONMEALTH EDISON CONPANY - DRAIDNOOD STATION - 1998 NACROINVEHTEDRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ----.-..-...... ------SITE:INTAKE ------DATE: IONAYO8 TINE: DAY NIGHT LOC.: LOC.: II 12 DEPTH DEPTH DOT TOP REP: REP: I I (DEN) (DEN)

SPECIES Chaetogaster diaphants 0.9 2.1 Nais elinguis 0.1 Nais pardalis - 1.2 Kais variabilis - 0.9 Ophidonais serpentina - 0.1 Paranais frici - 1.0 Pristina 0.2 - Stylaria lacustris 0.4 1.5 Yejdovskyella intereedia 0.2 - Enchytracidae 0.2 4.1 Baetis sp. - 0.4 Pseudocloeon se. - 3.3 Stenacron Sp. - 0.3 Potamanthus sp. - 0.1 Hexagenia sp. 0.1 Plecoptera - 0.9 Corixidae - 0.1 Cyrnellus fraternus - 0.1 Hydroptila - 0.4 Oecetts sp. - 0.1 Procladius sp. - 0.6 Thienumannisyia series . 0.3 ThienemannielIa sp. 0.2 0.1 Cricotopus tretulus grpp. 0.1 Cricotopus bicinctus grp. 0.2 0.1 Cricotopus trifascia grp. 0.2 023 Orthocladius sp. 0.7 2.7 Nanocladius sp. 0.2 0.1 Parakrefferieela 0.5 0.4 Rheocricotopus 0.2 - Cryptochironosus - 0.3 Dicrotendipes 0.2 0.1 Polypedilum sp. 0.2 0.1 Polypedilum convictu 0.2 0.6 Polypedilum simulans 0.2 - Stictochironosus - 0.3 Iheotanytarsus 1.3 Tanytarsus - 0.7 Sifulium - 1.2 TOTAL HACROINVERTEDRATES 4.7 23.1

D-26 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1989 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------.-...... ------SITE:INTAKE ------DATE: 17MAY88 TIME: DAY NIGHT LOC.: LOC.: I1 I| DEPTH DEPTH DOT SOT REP: REP: 2 3 (DEN) (DEN)

SPECIES Neaatoda - 0.2 Chaetogaster diaphanus . 0.4 Nais communis - 0.6 Nais elinguis - 0.2 Nais pardalis 0.1 0.8 Nais variabilis 0.3 5.9 Ophidonais serpentina 0.1 0.2 Paranais frici - 0.6 Stylaria lacustris - 0.4 Isonychia sp. 0.1 0.2 Daetis sp. - 4.7 Centroptilue . 1.4 Pseudcocloeon sp. . 9.4 Heptageniidae 3.3 Stenonema sp. - 0.4 Tricorythodes sp. - 0.2 Caenis sp. - 0.2 Perlesta sp. 0.1 - Corixidae - 0.2 Stenelais sp. - 0.4 ProclIadius sp. - 0.9 Thienemannieyia series - 0.2 ThienemannielIa sp. - 1.6 Cricotopus sp. - 0.6 Cricotopus treaulus grp. - 0.8 Cricotopus bicinctus grp. 0.1 2.0 Cricotopus sylvestris grp. 0.1 0.2 Orthocladius sp. - 0.6 ParakrefferielIa 0.1 0.2 Chironomus - 0.4 Dicrotendipes - 0.2 Polypedilum sp. 0.4 Polypedilu tonvictuo 0.9 0.2 Stic tochironomus - 0.2 Cladotanytorsus . 0.2 Rheotanytarsus - 1.8 TOTAL ACROINVERTEBRATES 1.9 40.4

D-27 COMMONWEALTH EDISON COMPANY - DRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (6/1003) ...... ------SITEzINTAKE ------DATEz 24NAYBB TIME: DAY NIGHT LoC.: LOC.: 11 12 DEPTH DEPTH DOT DOT REP: REP: 2 2 (DEN) (DEN)

SPECIES Neeatoda 0.1 Chaetogaster diaphanus 0.2 Nais pardalis . 0.1 Nais variabilis - 2.7 Ophidonais serpentina 0.1 - Paranais frici . 0.7 Stylaria lacustris - 1.3 Crangonyx sp. - 0.7 ]sonyt la sp. 0.7 Baet p 0.3 79.2 Centroptilu- 13.3 Callibaetis - 10.6 Pseudocloeon so. - 17.3 Heptageniidae . 4.0 H. maculipennis - 4.0 Stenacron sp. - 0.7 Hexagenia sp. - 0.7 Ephoron sp. 4.7 Corixidae 1.3 Procladius sp. - 1.3 Cricotopus Sp. 0.4 Cricotopus bicinctus grp. 0.2 - Cricotopus sylvestris grp. 1.3 2.0 Nanocladius sp. 0.2 Chironomus 0.2 0.7 Polypedilue sp. 0.4 Polypedilue convictue 14.7 J1.3 Lyunaea sp. . 0.7 Ps 0.2 0.7 TOTAL N&CIRNVERTEBRATES 18.5 158.4

D-28 COMMONWEALTH EDISON COMPANY - IRAIDWOOD STATION - 198B MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1043) ------SITE:INTAKE ------DATE: 31MAY88 TIME: DAY NIGHT LOC.: LOC.: 11 14 DEPTH DEPIH DOT TOP REP: REP: I I (DEN) (DEN)

SPECIES ChaetogasterHyra diaphanus 0.31.0 0.4 Nais variabilis 0.6 0.5 Stylaria lacustris 0.1 0.1 Slossiphonildae - 0.2 HyaIella azteca - 0.1 Crangonyx sp. 0.1 Isonychla sp. - 2.9 Baetis sp. 3.1 11.2 Centroptlium - 4.2 Callibaetis - 2.3 Pseudocloeon sp. 0.6 3.6 H. saculipennis 0.1 4.4 Stenacron sp. - 0.1 Potamanttus sp. 0.1 0.6 Ephoron sp. - 1.2 Corixjdae - 0.6 Hydropsyche phalerata - 0.2 Procladius sp. - 9.9 Coelotanypus sp. - 0.2 Ablabesmyia sp. - 2.4 Larsia p" - 0.5 Thienemannimyia series - 0.2 Eukiefferiella sp. 0.1 wanocladius sp. 0.1 Parakrefferielia 0.1 - ChironomuS - 1.4 Cryptotendipes - 0.0 Dicrotendipes - 0.2 Parachiron. cf frequens 0.1 - Polypedilum sp. 0.4 0.5 Polypedilum convictus 1.0 0.2 Tanytarsus - 0.2 Siouliidae - 0.1 Physasp. 0.3 0.1 TOTAL NACROINVERTEDRATES 8.3 49.7

D-29 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 198B NACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (111043) -.----.-...... ------SITE:INTAKE ------DATE: 07JUN86 TINE: DAY NIGHT LOC.: LOC.: 12 14 DEPTH DEPTH TOP SOT REP: REP: 2 I (DEN) (DEN)

SPECIES Hydra 0.1 Chaetogaster diaphanus 0.1 - Nais variabilis 1.3 0.1 Ophidonais serpentina 0.1 0.3 Stylaria Iacustris 0.2 0.3 Isonychia sp. . 0.4 Baetis sp. 0.5 0.4 Centroptilum . 0.3 Pseudocloeon sp. 0.1 0.8 H. ,aculipennis 0.2 1.4 Stenonema intergru, 1 0.1 Tricorythodes sp. . 0.4 Caenis sp . - 0.3 Argia sp. 0.1 Corixidae - 0.1 Hydropsyche phalerata 0.2 Hydroptila 0,2 0.1 Nacronychus glabratus 0. I Procladius sp. 0 0.6 Ablabesayia sp. 0.2 - Larsia sp. 0 . 1 Cricotopus sp. 0.2 - Cricotopus bicinctus grp. 0.5 - Cricotopus sylvestris grp. 0.2 0.3 Chironomus 0.3 Oeicryptochironous 0.1 Polypedilus sp. 1.8 Polypedilu, convictue 14.0 1.6 Rheotanytarsus 0.5 0.3 Tanytarsus 0.2 Sioulivm 0.5 0.1 Lynaea sp. 0.1 - P4ysa sp. 1.1 0.1 TOTAL NACROINVERTEBRATES 22.5 8.9

D-30 COMMONWEALTH EDISON COMPANY - IRAIDWOOD STATION - 190B NACROINVERTEBRATE DATA DENSITY OF IACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ...... ------SITE=INTAKE ------DATE: 14JUN88 TIME: DAY NIGHT LOC.: loC.: 14 12 DEPTH DEPTH TOP DOT REP: REP: 2 I (DEN) (DEN)

SPECIES Hydracarina (acarina) 0.1 0.1 Isonychia sp. 0.1 1.2 Baetis sp, - 0.5 Callibaetis - 0.4 Pseudocloeon sp. - 3.3 H.maculipennis 0.1 1.9 Stenonema sp. - 0.4 Tricorythodes sp. - 0.3 Caenis sp. - 0.8 Pota s- 0.1 Hexagenia sp. - 0.1 Ephoron sp, . 0.1 Corixidae . 0.5 Cheumatopsyche sp. - 0.1 HydropsycheSene ais sp, phalerata 0.3- 0.4 Ablabesmyia sp. - 0.3 Thieneeannimyua series 0.1 0.1 Nanocladius sp. 0.1 - Dicrotendipes - 0.1 Polypedilum convictus - 0.1 TOTAL MACROINVERTEBRATES 1.0 11.2

D-31 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1998 NACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (l11003) -.------...... ------SITE:INTAKE ...... DATE: 21JUN88 TIME: DAY NIGHT LOC.: LOC.: 12 13 DEPTH DEPTH BOT OT REP: REP: 2 I (DEN) (DEN)

SPEC[ES Opfidonais serpentina 0.2 - Stylaria lacustris 0.6 - Isonychia sp. - 0.9 Baetis sp. 3.6 Centroptilum - 2.4 Callibaetis - 2.4 Pseudocloeon sp. - 15.0 H. maculipennis - 1.0 tenonema sp. - 0.5 Tricorythodes sp, - 3.1 CorixidaeCenis sp.1.9 9.0 Neureclipsis - 0.2 Cheusatopsyche sp. - 0.2 Hydropsyche phaIlerata 0.2 0.3 Nacronychus glabratus - 0.2 Stenelmis sp. - 0.2 Procladius sp. - 0.3 Ab abesmyia sp. 0.2 0.7 Cricotopus sylvestris grp. 1.7 0.2 Dicrotendipes 0.3 - Polypedilum sp. - 0.2 Polypedilua convictum 0.2 0.3 Trirelos - 0.3 Rheotanytarsus 0.2 0.2 Tanytarsus - 0.2 Psychoda 0.2 - Physasp. 0.6 TOTAL MACROINVERTEDRATES 4.2 41.7

D-32 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) -.--.--...... ------.. SITE:iNTAKE ------DATE: 28JUNBB TIRE: DAY NIGHT LOC.: LOC.: 14 14 DEPTH DEPTH DOT TOP REP: REP: I I (DEN) (DEN)

SPECIES Nais variabilis - 0.2 Ophidonais serpentina - 0.2 Stylaria lacustris 0.2 0.9 Baetis sp. 0.2 0.2 Centroptju - 1.1 Callibaetis 0.1 Pseudocioeon sp. 1.3 0.7 H. eaculipennis 0.2 Stenalron sp. - 0.1 Stenoneaa sp. 0.2 0.4 Tricorythodes sp. 0.3 0.3 Caenis sp. 0.2 0.2 Hexagenia sp. - 0.2 Corixidae - 0.7 Oecetis sp. 0.2 - Dubiraphia sp. 0.1 Stenelmis sp. 0.1 Procladius sp. 0.1 Coelotanypus sp. 0.1 AblabesYiya Sp. 0.2 Labrundinia sp. 0.1 Thieneaannisyia series - 0.1 Cricotopus sp. - 0.2 Cricotopus bicinctus grp. 0.2 Cricotopus sylvestris grp. - 0.1 Nanocladius sp. 0.2 Dicrotendipes - 0.7 Harnischia - 0.3 Polypedilum sp. 0.2 Polypedilum convictum 0.2 0.2 Rheo anytarsus - 0.2 Tanytarsas . 0.2 Physa ýp. 0.2 0.2 Sphaerixdae 0.1 TOTAL MACROINVERTEBRATES 2.7 9.7

D-33 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ...... ------SITEzINTAKE ------DATE: 05JULB8 TIRE: DAY NIGHT LOC.: LOC.: 13 13 DEPTH DEPTH TOP DOT REP: REP: I I (DEN) (DEN)

SPECIES Hydra 0.1 0.1 P1 anariidae 0.1 0.1 Nais variabilis 0.1 0.5 Ophidonais serpentina 0,1 - Slavina appendiculata 0.1 Stylarna 1acustris 0.7 1.1 Hyalella azteca 0.1 Hydracarina (acarina) 0.3 Isonycia sp. 0.1 1.3 Baetis Sp. 0.1 1.5 Centroptiium 1.1 Callibaetis 1.5 PseudocloEon sp. 0.6 4.7 H. maculipennis - 2,3 Stenacron sp. - 0.4 Stenonema sp. - 3.7 Tricorythodes sp. 0.3 11.7 Caenis sp. 6.1 Potalant us sp. 0.5 He agenia sp. - 1.3 Coena grionidae 0.4 6erridae 0.1 Couixidae - 3.2 Cheumatopsyche sp. - 0.4 Hydropsyche sp. 0.1 Hydropsyche phalerata - 0.7 Hydroptila - 0.1 Oxyethira sp. 0.3 Oecetis sp. - 0.1 Peltodytes sp. - 0.1 Macronychus glabratus 0.1 0.1 Stenelhis sp. - 0.3 Procladius sp. . 0.5 Coelotanypus sp. - 0.3 Ablabesmyia sp. 0.1 Librundinia sp. . 0.1 Thienesannimypa series 0.4 Cricotopus bicinctus grp. - 0.4 Cricotopus sylvestris grp. 0.3 0.8 Chironrsus - 0.3 Dicrotendipes 0.1 0.4 Harnischia - 0.1 Polypedilum sp. - 0.3 Polypedilum convictum 1.2 1.2 Rheotanytarsus 0.1 0.1 Simulius - 0.1 Empididae 0.1 - Lyinaea sp. 0.1 - P s1.0 3.1 TOTAL NRCROINVERTEBRATES 5.5 52.5

D-34 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1998 KACROINVERTEDRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------.....------SITEzINTAKE ------DATE: 19JULO8 TIME: DAY NIGHT LOC.: LOC.: 14 12 DEPTH DEPTH DOT DOT REP: REP:

2 2 (DEN) (DEN)

SPECIES Hydra 0.5 Planariidae 0.2 Chaetogaster diaphanus 1.1 Dero digitata 0,2 Ophidonais serpentina 0.2 Stylaria lacustris 20.1 3.3 Hyalella azteca 0.2 2.0 Hydracarina (acarina) - 2.6 Isonychia sp. - 2.0 Baetidae 0.2 - Daetis sp. 0.2 2.0 Callibae is - 2,0 Pseudocloeon sp. - 3.3 H.eaculipennis - 5.9 Stenacron sp. - 2.0 Stenonema sp. - 2.6 Tricoryttodes sp. 0.5 64.5 Caenis sp. - 5.9 Hexagenia sp. - 57.3 Coenagrionidae 0.3 3.3 6erridaea 0.7 Corixidoe - 1.3 Hydroptila 0.5 6.5 Oxyethira sp. 4.1 9.8 Nectopsyche sp. 0.2 - Macronychus glabratus - 1.3 Stenelmis sp. - 0.7 Procladius sp. - 5.9 Ablabesmyia sp. 1.1 3.9 Labrundinia sp. - 3.3 Thienemannisyia series - 2.6 Cricotopus sp. 0.2 - Nanocladius sp. 0.2 - Dicrotendipes 1.5 0.7 Polypedilua convictum 1.1 2.0 Rheotanytarsus 0.2 1.3 Tanytarsus - 3.9 Culex sp. . 0.7 Simulium - 0.7 Physa 2.0 TOTAL gACRGINVERTEBRATES 34.4 203.2

D-35 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1999 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE ATEACH SITE (0/1003) ...... ------SITEzINTAKE ------DATE: 19JUL88 TIME: DAY NIGHT LOC.: LOC.: 14 12 DEPTH DEPTH BOT DOT REP: REP: 2 2 (DEN) (DEN)

SPECIES Hydra 0.5 - Planariidae 0.2 - Chaetopaster diapianus 1.1 - Dero digitata 0.2 Ophidonais serpentina 0.2 - Stylaria lacustris 20.1 3.3 Hyalella aztera 0.2 2.0 Hydracarina (acarina) . 2.6 Isonychia sp. - 2.0 Baetidae 0.2 - Daetis sp. 0.2 2.0 Callibaet is . 2.0 Pseudocloeon sp. - 3.3 H. maculipennis - 5.9 Stenacron sp. - 2.0 Stenonema sp. - 2.6 Tricorythodes sp. 0.5 64.5 Caenis sp. . 5.9 Hexagenia sp. - 57.3 Coenagrionidae 0.3 3.3 6erridae . 0.7 Corixidae - 1.3 Hydroptila 0.5 6.5 Oxyethira sp. 4.1 9.8 Nectopsyche sp. 0.2 - Macronychus g abratus - 1.3 Stenelmis sp. - 0.7 Procladius sp. - 5.9 Ablabesmyia sp. 1.1 3.9 Labrundinia sp. . 3.3 Thienemannimypa series - 2.6 Cricotopus sp. 0.2 - Nanocladius sp. 0.2 - Dicrotendipes 1.5 0.7 Polypedilum convictum 1.1 2.0 Rheotanytarsus 0.2 1.3 Tanytarsus - 3.9 Culex sp. - 0.7 Simulium 0.7 Physa 2.0 - TOTAL ACROINVERTEDRATES 34.4 203.2

D-35 COMMONWEALTH EDISON COMPANY - BRAIDWO0D STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ------...... ------SITE:INTAKE ...... DATE= 23AU6BB TIME:

DAY NI6HT LOC.: LOC.: II [1 DEPTH DEPTH DOT TOP REP: REP:

2 2 (DEN) (DEN)

SPECIESHydra - 0.1 Planariidae 0.4 0.2 Chaetooaster diapharus 0.2 0.4 Dero digitata 0.2 0.4 Nais variabilis 0.2 - Pristina 0.2 Stylaria lacustris 3.8 12.7 Hyalella azteca 1.3 1.7 Hydracarina (acarina) - 0.5 Daetis sp. 0.4 0.7 Centroptilum - 0.4 Callibaetis - 0.4 1.0 Pseudocloeon sp. - 0.8 Stenacron sp. - 0.1 Stenonema sp. - 0.1 Tricorythodes sp. 0.4 103 Caenis sp. 0.5 Hexagenia sp. - 2.7 Coenagrionidae - 1.0 Chisarra obscura - 0.1 Oxyethira sp. 0.2 1.5 Paraponyx sp. 0.2 - Cerat opogonidae 0.2 0.2 Chaob. punctipennis - 0.3 Procladius sp. 0.4 Ablabesayia sp. - 0.6 Labrundinia sp. - 0.1 Larsia sp. . 0.6 Thienemannimyia sp. 0.2 Cryptochironosus - 0.1 Dicrotendipes 0.6 nicrotendipes - 0.3 Parachironomus - 0.1 Polypedilue sp. - 0.9 Polypedileu convictum 1.1 0.8 Stenochironomus . 0.1 Tanytarsus 0. Psychoda 0.2 Simulium - 0.3 Physa sp. 0.2 0.4 6yraulusMOAL MACROIKYERTEBRATESA sp. 9.9 32.40.1

D-37 COMMONNEALTH EDISON COMPANY - DRAIDNOOD STATION - 1989 MACROINVERTEBRATE DATA DENSITY OF MACRDINVERTBRATES FOR EACH DATE AT EACH SITE (0/1043) ...... ------SITE:INTAKE ------DATE: 30AUG88 TUKE: DAY NIGHT LOC.: LOC.: 13 11 DEPTH DEPTH TOP TOP REP: REP: I I (DEN) (DEN)

SPECIES Hydra - 0.7 Planariidae - 0.2 Nais variabilis - 0.2 Stylaria lacustris 1.6 6.4 Hyalella azteca 0.4 O.B Hydracarina (acarina) 0.7 1.8 Daetis sp. - 1.2 Centroptilut - 5,8 Callibaetis - 1.7 Baetisca sp. - 0.3 Stenacron sp. - 0.2 Tricorythodes sp. 0.3 16.0 Brachycercus sp. - 0.2 PotamanthuCaeniss. sp 3.8, Is s- 0.5 Hexagenia sp. . 2.1 Coenagrionidae 0.3 6.8 Corixidae 0.2 Cyrnellus fraternus - 0.2 Potamyia flava - 0.2 Hydroptila - 0.5 Oxyeth:ra sp. - 0.8 0.2 PyrafidaeParaponyx sp. 0.1I Ceratopogonidae - 0.5 . 0.2 TanypusChaob. punctipennissp. - 0.3 Procladius sp. . 1.0 Coelotanypus sp. . 0.3 Ablabesmyia sp. 0.1 1.7 Larsia sp. 0.7 1.B Thienesanni yia series . 0.2 Ihienemanniefla sp. - 0.2 Cricotopus bicinctus grp. - 0.2 Cryptochironomus " 0.2 Dicrotendipes - 0.2 Polypedilum sp. 0.3 4.0 Polypedilus convictum 0.9 3.0 Rheotanytarsus - 0.3 Tanytarsus - 0.2 Psychoda 0.1 0.3 Simulium - 0.2 Stratotyiidae - 0.2 Physa sp. 1.2 1.2 6yrauus 0.7 0.2 TOTALu HACRiNYERTEBRATES 7.7 66.6

D-38 COMMONWEALTH EDISON COMPANY - DRAIDNODD STATION - 199B NACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (l/1003) ------.-...... ------SITE=INTAKE ------.------DATE: 06SEP88 TIME: DAY NIGHT LOC.: LOC.: 12 13 DEPTH DEPTH TOP TOP REP: REP: I I (DEN) (DEN)

SPECIES Hydra 0.2 - Planariidae 0.7 0.4 Derc. digitata 0.9 - Stylaria lacustris 17.6 3.8 Ia.. tub. vwo cc 0.2 - Hyalella azteca 1.2 1.7 Hydratarina (acarina) 0.9 0.8 Isonychia sp. - 0.1 Baetis sp. . 0.3 Centroptilue . 0.1 Callibaetis - 0.3 PselJdocheon sp. - 0,8 Baetisca sp. - 0.1 H. maculipennis - 0.2 Stenacron sp. - 0.1 Stenoneia sp. - 0.3 Tricorythodes sp. 2.4 1.4 Caenis sp. 0.9 0.2 Potalanthus sp. - 0.2 Hexagenia sp. - 1.4 Coenagrionidae 1.7 3.8 Aeshnidae - 0.1 Delastoaatidae - 0.1 Trichoptera 0.2 Cyrnellus fraternus - 0.2 Oxyethira sp. 0.7 0.6 Paraponyx sp. 0.3 0.2 Pyralidae 0.2 0.1 Nacronychus glabratus - 0.1 Procladius sp. - 0.9 Coelotanypus sp. 0.3 Ablabessyla sp. 0.5 1.3 Labrundinia sp. 0.2 0.4 Larsia sp. 8.3 1.4 Thienemanniayia series . 0.1 Thiencannieila sp. 0.2 0.1 Cricotopus bicinctus grp. 0.2 Cricotopus sylvestris grp. 0.3 Parachironomus - 0.2 Polypedilue sp. 2.1 0.4 Polypedilus convictus 3.3 1.1 Rheotanytarsus 0.5 0.1 Culicidae . 0.2 Psychoda 0.2 0.1 Simuliuu 0.2 0.3 Physa sp. 9.8 5.1 Byraulus sp. 2.1 0.3 Ferrissia sp. 0.5 0.2 TOTAL MACROINVERTEBRATES 55.2 29.6

D-39 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF MACROINVERTORATES FOR EACH DATE AT EACH SITE (0/1003) -.....-...... ------. SITEcINTAKE ------DATE= 13SEP88 TIME: DAY NIGHT [OC.: LOC.: 12 12 DEPTH DEPTH TOP TOP REP: REP: I I (DEN) (DEN)

SPECIES Planariidae 0.5 0.1 Chaetogaster diaphanus 0.3 Stylaria lacustris 5.7 2.5 GlossiphoniIdae 1.1 Hyalel]a azteca 0.3 2.3 Hydracarina (acarina) I.! 0.7 Baetis sp. - 1.6 Callibaeu is 0.3 1.2 Pseudocloeon sp. 0.2 2.7 Baetisca sp. - 0.5 Stenonema pulchellum - 0.1 Tricorythodes sI. 0.6 6.2 Caenis sp, 0.3 0.9 Pota anthus sp. 0.1

Hexagenia sp. - 0.4 Coenagrionidae 1.0 3.7 Argia sp. - 0.4 Cheumatopsyche sp. 0.2 - Hydroptila 0.2 - Oxyeth ira sp, 0.2 1.2 Paraponyx sp. 0.2 - PeltodytesPyrafidae sp. 0.2- 0.1- Tropisternus sp. 0.2 Procladius sp. - 0.9 Coelotanypus sp. - 0.3 Ablabesmyja sp. 0.6 0.9 Labrundinia sp. 0.6 0.4 Larsia sp. 0.3 5.2 ThieneAanniegla sp. 0.3 0.4 CrNcotopus bicincdus rp. 0.2 0.4 Chironomus - 0.1 Dicrotendipes - 0.1 Polypedilum sp. 0.3 2.0 Polypedilue tonvictum 2.1 2.9 Rkeotanytarsus 1.1 Tanytarsus - 0.5 Psychoda - 0.1 Siauliue 0.2 0.1 ByraulusPhysa sp. sp. 1.03.4 0.32.1 0.2 - Ferrissia sp. TOTAL MACROINVERTEDRATES 21.7 42.8

D-40 COMNONNEALTH EDISON COMPANY - BRAIDWOOD STATION - 1989 MACROINVERTEBRATE DATA DENSITY OF ECRDINVERTDRATES FOR EACH DAlE Al EACH SITE (J1/003) ...... ------SITEc4 ANKAKEE RIVER ...... DATE: 19APRB8 TIME: DAY NIGHT LOC.: LOC.: KI K2 K4 K3 DEPTH DEP11H DEPTH DEPTH DOT TOP BOT TOP BOT TOP DOT REP: REP: REP: REP: REP: REP: REP: 2 1 1 2 i 2 1 2 2 (DEN) (DEN) (DEN) (DEN)(DEN) (DEN) (DEN)(DEll) (DEN)

SPECIES Nematoda 0.1 - - Chaetogaster diaphanus 1.1 0.7 0.2 - 1.0 0.2 Dero *p 0.1 Dero diqitata Nais bretscheri - - - 0.2 Mais elingijis 0.2 Nais pardalis - 0.2 0.2 Nais variabilis 0.4 - - Ophtidonais serpentina 0.7 0.3 0.7 1.0 0.1 - 0.4 Paranais frici 2.6 1.4 3.1 3.9 0.1 0.4 7.2 4.8 3.9 Piquetiella michipanensij - - - - 0.2 - - Stylaria lacustrii . 0.1 0.2 0.2 - - Pranchiura sowerbyi 0.2 ------Lianodrilus hofftelsteri 0.2 0.1 0.1 - 0.2 0.2- lm,. tub. W/o cE 0.4 0.1 - - 0.2 Enchytracidae 0.1 0.2 0.1 Hyalella arteca -- 0.1 0.5 Crangonyx sp. 0.2 0.3 Isonychia sp. - - - -0.2 - 0.2 Baetis sp. 0.2 0.1 - Daetisca bajoleovi Stenacron sp. 0.4 - 0.2 0.3 0.1 Stenoneaa sp. - 0.3 - 0.3 0.6 0.9 Stenoneua pichellum 0.2 o:- o-0.2 Stenoneaa terlinatum . ,.- o 03 0.9 0.7 Tricorythodes sp. 1.1 - 1.1 1.0 0.1 -0.2 . 0.4 C enis sp. - - - 0.4 Po25anthus sp. 0.9 - 0.2 0.1 0.2 Ephemera sp. - - - - 0. - Hexigenia sp. - 10-i 1.3 0.5 Isoperla sp. - - 1.1 0.1 0.9 Trichoptera 0.2 0.3 0.4 0.4 Polycentropus sp. " - - 0.1 HydropsychLdae - - - 0.2 Hydropsyche phalerati "- - 0.1 0.4 Hydroptiidiae 0.2 - - 0.2 Hydroptila 0."- 0.2 0.! 0.4 Petrophila sp. - - - .!-0.21 - - Dubiraphia sp. Steneltis sp. - - - - 0.2 O 0.3 Ceratopoponudae S- - 0.2 0.2 Chiob. punctipennis - 0.1 Ablabesayja sp. 0.2 - - 0.2 0.7 0.4 Tbienemanniella sp. 0.1 Cricotopus sp. - . - 0.1 Cricotopus bicinctus grp. - 0.-.1 Orthocladius sp. 0.2 0.2 0.1 0.4 Smittia 0.2 .. . lvetenia discolonipes grp. . 0.1 - - 0.2 Cryptockironomus - 0.1 0.4 - 0.2 - Hicrotendipes - 0.1 Polypedilum sp. Po lypedilus €onvictum 0.2 0.1 0.1 0.2 0.1 - 0.3 - - TOTAL MACROINVERTEBRATES 1.4 2.6 7.2 0.0 0.5 1.2 13.0 12.6 11.7

D-41 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 198B HACROINVERTEDRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1043) ...... ------SITE:[ANKAKEE RIVER ------DATE: 26APR88 TIME: DAY NIGHT LOC.: LOC.: KI k2 K3 KI K3 K4 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH TOP TOP DOT DOT DOT TOP REP: REP: REP: REP: REP: REP: 1 1 2 2 2 1 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra - 0.3 0.2 - - Chaetogaster diaphanus 0.1 . 0.6 0.2 - Nais communis - - 0.2 0.2 - Nais pardalis - . 0.2 0.2 0.2 Nais variabilis 0.3 - 0.2 - 0.2 Ophidonais serpentina 0.1 0.3 - 0.9 0.7 Paranais frici 1.4 1.7 1.1 3.9 4.2 0.5 Piguetiella iichiganensis - 0.2 Slavina appendicu Iata - 0.2 - Stylaria Iacustris - 0.2 0.2 4os. tub. v/o cr - 0.2 - 0.2 0.2 Hyalella azteca - - 0.2 Hydracarina (acarina) - 0.2 Isonychia sp. - 0.2 Stenacron sp. - 0.3 Stenonema sp. - 0.4 0.8 - 0.2 Stenonema terainatum - 1.6 0.3 Tricorythodes sp. 0.2 0.2 Caenis sp. - 0.2 - PotamantSNus sp.- 0.2 0.2 0.2 Xexagenia sp. - 0.9 0.2 0.2 [soperla sp. - 0.2 - Hydropsyche phalerata - 0.2 Potamyia flava - - 0.2 Protoptila sp. - 0.2 0.2 - Hydroptila 0.1 - 0.3 Ababessey sp. - 0.2 - - Thienesanniiyza series 0.2 - Orthocladius sp. 0.1 - 0.2 - Chironosus - 0.2 - Polypedilum sp. 0.1 - - - Polypedilus convictua 0.2 0.3 - Polypedilum scalaenum 0.1 - - Polypedilum simulans - 0.2 Unidentified .- - - 0.2 TOTAL NACROINVERTEBRATES 2.5 2.7 3.4 10.1 9.7 1.6

D-42 COMMONWEALTH EDISON COMPANY- BRAIDNOOD STATION - 19BB MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE ATEACH SITE (I/1003) ...... ------SITEcKANKAKEE RIVER ------DATE: 03MAY88 TIME.

DAY NIGHT LOC.: LOC.: K! K2 K3 KI K2 K3 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH DOT TOP TOP TOP TOP 801 REP. REP: REP: REP: REP: REP: 1 1 2 1 1 2 (DEN) (DEN)(DEN) (DEN)(DEN) (DEN)

SPECIES Hydra 0.2 - 0.2 0.4 Nematoda - 0.2 Chaetogaster diapanus - 0.2 Dero digitata . -- 0.1 Nais bretscheri 0.2 o -O' ,- Hais cosounis . 0.1 - - 0.1 - Nais elinauis 0.2 0.1 -- - - Nais pardilis - . 0.4 Nais variabilis 0.4- - 0.2 - 0.3 0.7 Ophidonais serpentina - 0.65 0.4 0.2 Paranais frici 0.2 0.3 0.2 0.4 0.7 0.9 Piguetiella midhiganensis 0.2 . 0.1 - Lisnodrilus hoffteisteri 0.2 0.2 Enchytracidae 0.2 - Hyalella azteca 0.4 Isonychia sp. 0.1 laetisca bajoleori 0.1 0.4 Heptagenia flavescens 0.1 - Stenacron sp. - 0.2 0.2 0.3 0.5 Stenoneaa sp. 0.2 - 5.1 1.3 2.1 Stenonema intergrua - - 0.2 - Stenonesa pulhellui . 0.6 Stenonesa terminatut - 3.2 0.3 3.0 0.2 Ephemerella needhami - _0.2 - Tricorythodes sp. - Caenis sp. - 0.2 - 0.2 Pentagenra vittigera - - - 0.2 Potananthus sp, 0.2 0.1 Ephemera sp. - - - 0.2 Hexagenia sp. - 1.1 . 0.1 Argia sp. - 0.2 - Flecoptera - 0.2 0.2 - - PerIidae - - 0.1 0.2 Perlesta sp. . 0.1 ]soperla sp. - 0.2 Polycentropodidae 0.2 Potaoyia Ilava S - - 0.2 Hydroptila 0.4 0.4 - 0.5 Triaenodes sp. - - - - 0,2 Petrophila sp. - 0O.1 Nacronychus glabratus - 0.2 0.1 Stenelais sp. - - I.i1. Procladius sp. 0.6 - 2.3 Ablabesmyia sp. - 0.2 0.1 0.2 Thienemanni:y1a series o0.1 - 0.4 0.1 - Thienemannie sp. 0.2 0.1 - - - Cricotopus sp. 0.2 - - - Cricotopus trifascia grp. - - - 0.1 Orthodladius sp. - 02 - - 0.2 Nanocladius sp. .2 0.1 0.2 Harnischia 0.2 Polypedilum convictum 0.6 - 0.2 0.1 0.2 Polypedilis scalaenus 0.4 Stenochironoaus 0.2 Paratanytarsus - 0.1 Tanytarstis 0.2 - 0.3 TOTAL NACROINVERTEBRATES 3.9 1.4 1.0 14.7 6.7 15.8

D-43 COMMONWEALTHEDISON COMPANY - DRAIDWOOD STATION - 1988 IACROINVERTEDRATE DATA DENSITY OF RACROINVERTERATES FOR EACH DATE AT EACH SITE (1/10a3) ...... ------. SITEsIANKAKEE RIVER ...... DATE: IOMAY8B TIME: DAY NIGHT LOC.: LOC.: KlI 2 K3 K4 KI K2 K3 K4 DEPTH DEPTH DEPTH DEPIH DEPTH DEPTH DEPTH DEPTH DOT TOP 80T DOT TOP TOP ROT TOP DOT TOP REP: REP: REP: REP: REP: REP: REP: REP: REP: REP: 1 I 2 i i 2 1 2 1 2 1 (DEN) (DEN)(DEN) (DEN) (DEN)(DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 0.6 0.3 0.4 0.1 0.3 0.3 0.2 Nematoda 0.1 Nais elinguis 0.1 hais pardalis - 0.3 0.4 - - Nais variabilis - 0.5 0.2 0.2 0.3 0.9 0.2 0.2 0.4 Ophidonais serpentina 0.8 0.5 0.8 0.1 0.1 0.2 0.4 - Paranais frii 0.2 0.2 . 2.2 O.B 0.3 0.6 0.2 PiglietielLa michiganensis 0.4 0.2 - 0.1 0.3 0.5 - Stylaria lacustris 0.4 -- 0.1 - - 0.2 Vejdovskyella intermedia 0.2 Enchytruaidae - - 0.1 0.2 - Hyalella 4zteca - 0.3 - Gammarus sp. - - 0.1 0.2 Isonychia sp. - 0.2 0.4 0.2 - 0.2 Pseudocloeon sp. S - -0.6 0.2 0.4 0.6 Daetisca bajoleovi 0.1 0.2 - Heptagenia sp. - - 0.2 Pseudiron sp. 0.4 0.3 0.3 0.2 - 0.2 Stenacron sp. 0.2 0.3 0.1 0.3 - 0.4 - Stenonesa sp. 5.9 0.3 1.3 - 0.2 Stenonema pulthel um - 0.1 - - 0.2 Stenonesa terainatuo 1.1 0.1 1.0 1.4 1.1 0.2 Ephemerella needhami - - - - 0.2 - - - - Tricorythodes sp. 02.. Caenis ,p. -- -0.2 - - o 2 Potamanthus sp. 0.2 - 0.2 0.1 0.1 Nexagenia sp. - 0.2 0.4 0.4 0.3 0.2 0.4 0.4 Coenagrionidae 0.1 Plecoptera 0.2 - - 0.2 Lori idae 0.1 - Trichoptera 0.2 " - Hydropsyche phalerata 0.1 - Protoptila sp. - o 0.3 - - Hydroptila - 0.4 0.1 Peltodytes sp. - - - - - 0.2 Nacronychus glabratus 0.4 0. 1 - 0.2 Stenelmis sp. - - 3.0 0.7 0.6 - 0.2 Ckaob. ponctipennis 0.3 Procladius sp. - 0.2 0.1- - 0.2 Ablabeseyia sp. 0.1 - 0.2 - 0.2 Thieneoannixyfa series - 0.2 - -O- 0.3 0.2 - - - Cricotopus sp. - - . - 0.1 - Cricotopus bicinctus grp. 0.2 - - 0.2 0.2 0.2 - Cricotopus trifascia grp. . 0.2 - Ortlocladius sp. - 0.2 0.4 " - - 0 " Nanocladius sp, ------0.4 Parakrefferiella 0.2 0.2 - 0.1 - - - Chironoass Cryptochironomus - 0.2 - 0 - 0.2 - Polypedilqa sp. . 0.2 0.3 . 0.2 0.2 - Polypedilum convictum 0.2 - - 0.1 - 0.6 - Paratanytarsus 0.3 - - - 0.1 Rheotanytarsus 0.5 1.2 0.2 0.4 0.7 0.9 0.5 0.9 0.7 SiOqli C - 0.2 - 0.2 TOTLt MACROIHVERTEBRATES 2.7 3.2 4.5 0.4 14.2 7.3 9.8 5.6 2.4 7.0 2.6

D-44 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) -...... ------SITE4KANKAKEE RIVER ------DATEz 17MAYBB TIME: DAY NIGHT LOC.: LOC.: KI K2 K4 K2 U3 K4 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH DOT DOT TOP DOT DOT TOP REP: REP: REP: REP: REP: REP: 2 2 1 2 2 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 0.4 0.2 0.6 0.3 Dero digitata 0.2 - Nais cosmunis 0.4 - - - Nais elinguis 0.2 0.3 - 0.3 Nais pardalis 0.2 0.2 0.2 - - 0.7 Nhis variabilis 1.0 0.9 0.2 0.2 1.8 0.3 Ophidonais serpentina 0.2 - - 0.5 0.2 - Paranais frici - . 0.5 0.2 0.3 Slavina appendiculata - - - - 0.1 Stylaria lacustris 0.2 0.5 . 0.2 0.1 Enchytracidae - - 0.2 - - - Isonychia sp. - . 0, 4 Baestis sp. - - - - 1.8 0.6 Pseudocloeon sp. 0.2 0,2 - . 15.8 0.1 Heptageniidae 0.2 0.3 0.2 1.0 1.8 1.2 Pseudiron sp. - - 0.2 0.2 0.1 Stenacron sp. - 0.4 - Stenone:a sp. 0.2 1.4 0.1 Stenonema terainatum - 0.3 1.4 - Tricorythodes sp. - 0.5 0.4 - Caenis sp. - - 0.2 - Potamanthus sp. - 0.2 - Ephemeridae 0.2 0.3 0.4 . 0.4 - Hexagenia sp. - - 0.6 0.4 0.1 Argia sp. - 0.2 - Plecoptera - 0.2 hacronychus glabratus 0.3 0.6 - Stenelsis sp. 0.3 0.6 - Procladius sp. 0.3 1.0 - Ablabesayia sp. 0.4 0.3 0.2 0.1 Thienemannimyia series - 0.2 - - ThienesannieIla sp. - - 0.2 Cricotopus sp. 0.5 - - - Cricotopus bicinctus grp. 1.0 0.2 0.8 0.5 2.2 Cricotopus trifascia grp. 0.4 - - 0.2 - Cricotopus sylvestris grp. - . 0.2 Orthocladius sp. - 04 - Ntnocladius . 0.7 0.9 2.1 2.4 0.1 ParakrefferielIa - 0.2 - 0.4 0.1 Dicrotendipes - - 0.2 Polypedilum sp. - 0.2 0.5 - 0.7 Polypedilue convictum - 0.2 - - RheotanytarsusParstanytrsus- 0.4 0.3- 0.8 3.5 2.20.2 0.9

Psychoda .- - 0.1 TOTAL MACROINVERTEBRATES 5.5 4.9 4.0 12.9 37.9 6.1

D-45 COMMONWEALTHEDISON COMPANY - BRAIDWOOD STATION - 1SBG MACROINVERTEDRATEDATA DENSITY OF MACROINVERTBRATESFOREACH DATE AT EACH SITE (111043) -----.- ..-.-.--.-.-...... ------SI1E=KANKAKEE RIVER ------

DATE- 24MAY88 TIME: DAY NIGIH LOC.: LoC.: KI K4 KI K2 DEPTH DEPTH DEPTH DEPTH DOT TOP Bel TOP DOT REP: REP: REP: REP: REP: 1 2 1 2 1 I (DEN) (DEN)(DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 1.5 2.7 0.9 2.5 3.6 4.9 Hematoda 0.1 Chaetooaster diaphanus 0.2 0.2 - 0.2 Dero digitata 0.1 Nais el'nguis - - 0.2 - Nais pardalis 0.2 0.2- 0.5 0.1 Nais variabilis 0.4 0.4 0.3 0.9 1.4 0.6 Ophid.niis serpentina - - - 1.4 0.5 Paranais frici - 3.2 2.6 1.1 PigluetiellIa ichiganensis 0.1 0.1 Stylaria lacustris 0.2 0.6 - 0.5 0.2 0.1 Vejdovskyella intersedia - 0.2 0.2 - Hyalella azteca - 0.1 Giemarsis sp. 0.1 Astacidae - 0.2 0.2 0.3 Hydracarina (acarina) 0.1 Isonychia sp. - 1.8 1.0 1.4 8aetis sp. 1.0 27.1 3.6 19.8 Centroptilus 0.2 - 15.2 3.0 IE Callibaetis 0.4 - - 9.5 6.2 5.7 Pseudo:loeon sp. 0.2 0.6 0.9 23.3 5.7 11.2 H. maculipennis . 13.0 9.6 17.6 fleptacenia sp. 0.2 0.9 - - - Stenacron sp. 0.1 Stenonema up. 0.2 Tricorythodes sp. 0.2.1.1 0 . Brachycercus sp. Cienis sp. - 0.4 Potamanthus sp. 0.9 0.1 Hexagenia sp. 0.3 0.5 - 0.4 Ephoron sp. 0.4 0.4 . 3.5 3.6 3.4 Gomphidie 0.2 0.2 - Corixidae 0.2 0.4 0.4 Macronychus glabratus 0.4 0.4 Stenelmis sp. 0.4 - 0.4 Procladius sp. 3.2 0.2 1.1 Coelotanypus sp. 0.2 0.2 0.1 Ablabeseyia sp. 1.6 1.1 1.1 Thienemannimyua series 0.2 Thieneaannie li sp. 0.1 Cricotopus sp. 1.1 0.4 0.5 1.1 1.1 Cricotopus tremulus grp. 0.6 Cuicotopus bicinctus Orp. 0.1 0.4 Cricotopus trifascia grp. * -- 0.1 Cricotopus sylvestris grp. 0.2 0.4 Orthocladies sp. *0.4 . 0.1 Nanociadius sp. 1.3 0.2 0.3 1.2 1.7 1.2 Parakre f f rie 0.2 - Tvetenia discoloripes grp. Chirono us 0.7 0.1 0.3 Cryptochironoous 0.2 .-- 0.1 Cryptotendipe$ Narnischim - - - - 0.1 Parachironomus . 0.2 - 0.2 Polypedilum sp. 0.2 - - 0.5 0.1 0.1 Polypedilus convicts@ 0.2 0.2 . 0.5 0.6 0.4 Rheotanytarsus 0.2 - . 1.1 - 0.5 Taaytarsts - 1.0 0.4 Psycboda 0.2 - - Siaulium 0.1 0.1 Pbfyidae 57,60.1- TOTALRAROINYERTEBRATES 9.2 7.0 5.4 114.1 57.6 78.4

nAC COIINONNEALTH EDISON COMPANY- BRAIDNOOD STATION - 198B NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOREACH DATE AT EACHSITE (1/1003) -..----.-.-.--.---...... ------SITE9[ANKAKEE RIVER ------

DATE: 31MAY8B TIME: DAY NIGHT

KI K4 K3 DEPTH DEPTH DEPTH lOP DOT TOP TOP REP: REP: REP: REP: 1 2 I I 2 (DEN)(DEN) (DEN) (DEN) (DEN)

HydraSPECIES 0.6 2.4 0.6 0.3 0.6 Chaetogaster diaphanus 0.1 Nais pardalis 0.1 Nais variabilis 1.4 Ophidonais serpentina 0.3 Paranais frici 0.1 Piguetiella imchiganensis 0.2 - 0.4 Stiylaria Ia ustris 0.1 Asacidae 0.1 Isonychia sp. 4.2 1.9 Baetis sp. 7.2 0.4 1.0 1.5 Centroptilum 0.2 10.0 0.2 0.2 3.1 Callibaetis 0.3 7.3 - 0.2 1.3 Pseudocloeon sp. 0.3 3.8 - 2.0 1.5 H. 4arulipennis 0.6 24.5 - 2.5 8.1 Stenacron sp. - 0.1 0.3 Stenonema sp. 1.1 Stenonema terminatum 0.3 Tricorythodes sp. 0.4 - 0.1 Brachycercus sp. 1.2 0.2 1.0 PotsCaenis' anthu . p - 0.7 - 0.1 2.2 - 0.4 Hexagenia sp. 0.8 Ephoron sp. 0.6 35.7 0.8 5.8 Perlidae - 0.1 - - Corixidie - 0.5 Ole0. Cheumatopsyc'e sp. O - . 0.1 Hydropsyche phalerata " 0.4 0.1 Symphitopsycte sp. Nectopsyche s. - 0.1 0.1 Macronychus 91abratus 0.4- 0.1 Stenelais sp. - 0.7 0.2 0.3 Procladius sp. 4.5 - 9.3 Coelotanypus sp. 0.1 Ablabesmyia sp. 0.2 2.6 - 0.9 sp. - 0.1 LarsiaLabrundinia sp.., Thienerannp ,ia series 0.2 0.1 - 0.2 0.4 0.4 Thienemannie Ia sp. - 0.3 - Cricotopus sp. 0.5 - 0.3 Cricotopus tremulus grp. 0.1 - Cricotopus bicinctus grp. 0.3 Cricotopus trifascia grp. 0.5 0.2 0.2 Nanocladius sp. 0.5 - 0.1 Rleocricotopus 0.1 - 0 Teetenia discoloripes gOp. *- - - 0.1 Chironomus 0.7 0.1 Cryptochironools 0.3 Cryptotendipes 0.2 Dicrotendipes 0.1 Harnischia S.30.4 Parachironoaus Paracladopelea 0.4 Polypedilm sp. 1.1 0.1 Polypedilum convictem 0.2 2.1 0.4 Tlvie os 0.1 Paratanytarsus 0.1 Rheotanytarsus 1.- Tanytarsus 0.4- 0.3 lavrelia - - 0.1 Physa sp. 0.8 O-- E. TOTAL61radlusMACRDINVERTEBRATES s 0.1 3.4 125.4 2.2 7.2 39.6

D-47 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) -.------...... ------SITE:KANKAKEE RIVER ------DATE= 07JUN88 STIME: DAY NIGHT LOC.: LDC.: KI K3 K4 KI K3 K4 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH DOT TOP TOP TOP TOP TOP REP: REP: REP: REP: REP: REP: 1 2 1 1 2 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 0.9 0.2 - 0.2 0.1 - Naididae - - - 0.1 - Nais variabilis 0.2 - Vejdovskyella intermedia - . 0.2 - Nyalella azteca - 0.2 0.1 Hydracarina (a(arina) 0.2 - - 0.9 Isonychia sp. - 1.9 6.4 3.0 Baetis sp. 0.4 0.3 2.5 0.5 Centroptilum 0.4 0.6 0.4 0.5 Callibaetis . 0.2 - 0.7 Pseudocloeon sp. - 0.2 0.2 0.6 0.7 0.9 Heptageniidae 0.2 - - H. eaculipennis 0.3 0.9 2.7 0.1 3.9 Stenacron sp. - - - 0.1 - Stenonema sp. - 0.2 - 0.3 0.1 0.2 Stenonema intergru- 0.7 Stenonesa terainatum - - - 4.1 0.4 Tricorythodes sp. 0.2 0.2 - 1.6 1.7 2.1 Drachycercus sp. - - 0.8 2.0 0.4 Caenis sp. - 0.2 0.5 1.1 1.3 Pot manthus sp. 0.2 0.2 - 0.2 . 0.4 Hexagenia sp. - 0.2 0.4 0.2 Ephoron sp. - 0.2 0.5 5.5 13.5 11.6 Coenagrionidae - - 0.2 Corixidae 0.2 0.2 1.4 1.1 2.3 Cheusatopsyche sp. - - - 0.1 Nydropsyche phalerata - 0.5 1.6 2.2 1.1 Hydroptila 0.3 - 0.2 0.2 aacronychus glabratus - - 0.2 0.4 Stenelais sp. - - 0.2 0.1 Prodadius sp. - - 0.5 0.9 0.9 1.1 Coelotanypus sp. - 0.2 sp. - 0.6 1.4 1.8 AblabIaesya Lasas.- 0.2 0.2 0.6

Thieneannisya series 0.4 0.2 - 0.2 - 0.4 Cricotopus sp. - 0.1 0.4 Cricotopus sylvestris grp. - 0.2 - - Nanocladies sp. - 0.2 0.2 Chironomus - 0.2 - 0.2 Cryptotendipes - - 0.1 - Dicrotendipes - - 0.1 - marnischia - 0.2 Polypedilum convictua 0.7 0.1 0.4 Rheotanytarsus 0.2 0.2 0.2 0.2 0.4 Physa up. - 0.2 - - TOTAL IACROINVERTEDRATES 3.1 2.0 4.3 21.5 43.7 36.3

D-48 COMNONNEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTDRATES FOR EACH DATE AT EACH SITE (011003) -.--.--.-...... ------SITE:KANKAKEE RIVER ------DATE: 14JUN88 TI E: DAY NIGHT LOC.: LOC.: KI K2 K3 KI K2 K3 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH BOT BOT TOP DOT TOP 9OT REP: REP: REP: REP: REP: REP: 2 2 1 1 2 1 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Stylaria lacustris - 0.2 Hyalella azteca 0.1- Hydracarina (acarina) 0.3 0.2 Isonychia sp. 9.0 1.0 4.2 Baetis sp. - - 2.7 0.2 0.2 Centroptlue -- 0.5 - 0.2 Callibaetis - 1.5 - 0.2 Pseudocoeon sP. - 0.4 H. auclipennis 0.3 4 0.1 22.04.9 2.60.5 10.93.3

Heptagenia flavescens - - - 0.1 Stenacron sp. - 0.3 0.2 0.2 Stenonema sp. - 7.2 0.8 6.0 Stenonema interoru- - 0.7 0.1 0.4 Stenonema terminatum 2.7 0.2 0.9 Tricorythodes sp. 0.2 - 5.5 2.1 9.4 Brachycercus sp. - - 1.1 0.3 0.2 Caenis sp. 0.5 0.2 2B.1 8.5 27.9 Potalant us sp. 1.5 0.1 0.4 Hexagenia sp. 1.1 - 0.7 Ephoron sp. 0.2 10.4 0.8 5.4 6o,9phidae - 0.1 - - Corixidae . 7.6 0.7 3.2 Climacia sp. . 0.1 - - Cheumatopsyche sp. . 0.4 - 0.5 Hydropsythe phalerata 0.1 2.7 0.3 3.5 Protoptila sp. - - 0.1 - Hydroptia 0.1 -- Dubiraphia sp. - O.01 - 0.2 Macronychus glabratus - 0.7 - 0.2 Stenellis sp. 0.2 2.3 0.1 Proladius sp. - 5.3 7.9 9.7 Ablabesayisp. - 2.2 - 0.4 Labrundinia sp. - 0.5 - - Larsia sp. - - 0.2 Thienesannimyia series . 0.5 - 0.2 Cricotopus sp. - 0.1 Cricotopus bicinctus grp. 0.2 - - - Cricotopus sylvestris grp, - 0.1 Nanocladius sp. - 0.3 - - Chironolus - 0.1 Cryptothironomus - - 0.2 Dicrotendipes - - 0.2 Harnischia - - 0.4 Parachironoaus - 0.1 0.4 Polypedilue convictum 0.2 0.2 0.1 0.1 - 0.2 iheotanytarsus - - - 0.3 Psychoda - - - 0.2 Simuliu- - 0.1 0.2 TOTAL NACROINVERTEBRATES 1.5 0.5 0.9 123.5 26.0 99.2

D-49 COMMONWEALTH EDISON COMPANY - IRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF IIACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ...... SITE:KANKAKEE RIVER ------DATE= 21JUNS9 TIME: DAY NIGHT LOC.: LOC.: K3 K2 K3 DEPTH DEPTH DEPTH TOP DOT TOP DOT SOT REP: REP: REP: REP: REP: I 2 2 1 1 I (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Planariidae - 0.2 Ophidonais serpentina 0.1 Hyalella azteca . 0.2 Hydracarina (acarina) 0.1 - 0.2 0.4 Isonychia sp. . 0.9 1.8 0.4 Baetis sp. - 1.5 1.4 - Centroptilue - - 1.5 1.1 0.5 Callibaetis - - 1.3 3.6 0.5 Pseudocloeon sp. - - 1.5 4.7 - H. eaculipennis - - 2.8 4.0 Stenacron sp. - - 0.6 1.1 0.4 Stenonesa sp. 0.1 - 0.1 3.1 9.0 0.7 Stenonema intergrum - - 0.2 - - Tricorythodes sp. 0.1 0.3 5.4 2.4 Drachycercus sp. - - 0.4 0.5 - Caenis sp. 1.0 0.7 0.6 27.7 14.5 0.7 Hexagenia sp. 0.1 - - 0.7 0.4 - Ephoron sp. - 1.1 0.2 0.4 Coenagrionidae - - 0.2 - - Goophidae - 0.4 Corixidae - - 4.3 15.7 8.4 Polycentropus sp. - - 0.2 Hydropsyche phalerata 0.6 - 1.1 - - Hydroptila - . 0.2 - Oecetis sp. - - - 0.2 Steneliis sp. 0.1 o0.2 Procladius sp. - - - 2.2 - - Ablabesayia sp. - - 0.5 0.2 Labrundinia sp. - 0.2 - LarsTa sp. - 0.1 Thienesannimyia series - - 0.4 0.2 Cricotopus sp. - - 0.2 Cricotopus sylvestris grp. - - 0.4 - Nanocladius sp. - 0.2 - Harnischia - 0.2 0.2 - Parachironomus - 0.4 0.2 0.2 Polypedilum sp. - 0.4 0.7 Polypedilum convicts- 0.4 0.4 Siou iidae - 0.2 - Sioulium - - - 0.4 Pleuroceridae - 0.4 " TOTAL MACROINVERTEBRATES 2.3 0.7 1.3 60.3 63.5 13.0

D-50 CONMONWEALTH EDISON CONPANY - BRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF RACROINVERTDRATES FOR EACH DATE ATEACH SITE (011003) ------SITEzIANKAKEE RIVER ...... DATE: 28JUNB8 TIME: DAY NIGHT LOC.: LOC.: K2 K3 KI K2 DEPTH DEPTH DEPTH DEPTH DOT TOP TOP TOP DOT REP: REP: REP: REP: REP: 2 2 2 I I (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES No Organisis Found . 0.0 - - Hydracarina (acarina) - - 0.4 0.1 0.2 Isonychia sp. - - 0.6 0.1 1.2 Baetis sp. - - - . 0.2 Centroptilue - - 1.4 0.7 0.7 Caliibaetis - 0.6 1.3 2.8 Pseudocloeon sp. - . 1.0 - 0.5 H. eaculipennis - - 0.4 0.7 Stenacron sp. - - 019 0.7 Stenonema sp. - - 1.6 0.1 4.3 Tricorythodes sp. . 0.4 0.3 0.7 Caenis sp. 0.3 . 6.4 0.8 6.6 Hexagenia sp. - - 0.4 - 0.7 Ephoron sp. - 0.4 0.2 Coenagrionidae - 0.1 - - Corix dae - 6.4 2.9 8.3 Polycentropus sp. - - 0.2 0.7 Hydropsyche phalerata - 0.1 - Potamyia flava - - 0.2 Hydroptila 0.1 - Nacronychus glabratus - 0.1 0.2 Stenelais sp. 0.1 - 0.2 Procladius sp. 0.3 . 0.2 Ablabesayia sp. 0.1 - 0.5 Larsia sp. - 0.1 - - Thienemannimyia series - 0.1 - - Cyyptorhifonomus - 0.1 - 0.2 Parachironomus - 0.1 - - Polypedilum sp. - - 0.4 - 0.9 Polypedilus convictua -- 0.2 TDTAI NACROINVERTEBRATES 0.3 0.0 22.3 6.7 31.0

D-51 COMMONWEALTH EDISON COMPANY - DRAIDVOOD STATION - 19B8 MACROINVERTEIRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (l/1003) - .---.-...... ------SITE =IANKAEEE RIVER ...... DATE= 05JULBB TIME: DAY NIGHT LOC.: LOC.: K1 K2 K2 DEPTH DEPTH DEPTH TOP TOP DOT TOP REP: REP: REP: REP: 2 2 1 1 2 (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Stylaria lacustris O.B 0.3 Hydracarina (acarina) - 0.5 Baetis sp. - 0.2 Centroptilum - 0.7 Callibaetis - 0.3 Heptageniidae - 0.2 - Stenacron sp. - 0.2 Stenonesa sp. 1.1 Tricorythodes sp. - 0.1 0.2 3.4 Caenis sp. 0.2 0.1 0.2 0.5 7.4 Hexagenia sp. - 0.2 0.5 Coenagrionidae 0.2 CoTixidae 0.7 Polycentropus sp, - 0-, Hydropsyclhe phalerata - 0.2 0.7 Petrophila sp. 0.2 Stenelais sp. - 0.2 Coelotanypus sp. - 0.2 Ablabesoyia sp. 0.2 Thienesanniaya series - - 0.2 - 0.3 Cricotopus sp. 0.2 - - - - Cricotopus tremolus grp. - 0.7 Cricotopus bicinctus grp. . 0.2 Cricotopus sylvestris grp. . 0.5 Dicrotendipes - 0.2 Polypedilum convictum 0.2 0.2 0.3 Rheotanytarsus 1.1 0.3 Pleurocera sp. - 0.3 Goniobasis sp. " 0.2 P sas - 1.1 TOTAL NCROINVERTEBRATES 0.5 0.3 0.5 3.4 20.7

D-52 COIMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF HACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ...... ------SITE:KANKAKEE RIVER ------DATE: 12JUL8B TIME: DAY NIGHT LOC.: LOC.: K2 K2 DEPTH DEPTH TOP TOP REP: REP: I 2 1 2 (DEN) (DEN) (DEN) (DEN)

SPECIES Stylaria lacustris 0.2 - - Hyalella azteca - - 0.1 Baetis sp. 0.1 Centroptilum 0.3 0.4 Callibaetis 0.3 0.4 Stenacron sp. - 0.1 Tricorythodes sp. 0.1 - Caenis sp. 0.5 0.2 0.4 0.3 Hexagenia sp. - 0.3 0.4 Ephoron sp., - 0. 1 Corixidae - - 0.1 0.6 Stenelmis sp, - 0.2 - Procladius sp. - - 0.1 Labrundinia sp. - 0.1 - Thienesannisyia series - 0.2 - 0.1 Cricotopus sylvestris grp. - 0.2 Narocladius sp. - 0.1 - PolyfediIum s - 0.1 TOTARNACROIYNERTEBRATES 0.6 0.6 2.1 2.6

D-53 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF RACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------SITE:KANKAKEE RIVER ...... DATE= 19JUL8B TIME: DAY NIGHT LOC.: LOC.: K2 K3 K2 K3 DEPTH DEPTH DEPTH DEPTH TOP TOP TOP TOP REP: REP: REP: REP: 1 2 I 1 1 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES No Organisms Found 0.0 - Stylaria lacustris - 0.2 0.5 Hyalella azteca - 0.2 Hydracarina (acarina) 0.2 0.6 Isonychia sp. - 0.2 1.3 Baetis sp. 1.4 0.5 0.2 8.7 Centroptilum - 0.3 . 0.8 Cal libaetis 0.1 0.3 0.5 3,0 Pseudocloeon sp. - - 0.9 H. saculipennis . 0.5 Stenarron sp. - . 0.6 Stenonema sp. 0.3 0.2 4.1 Tricorythodes sp. 0.2 0.3 0.5 9.5 Drachycercus sp. 0.3 0.2 0.2 0.2 10.9 Caenis sp. 0.9 0.2 0.5 0.2 16.1 Potaantus sp. - 0.2 Hexagenia sp. 3.B . 0.5 0.2 11.5 Coenagrionidae - 0.2 - 0.9 Corixidae 0.2 - - 0.2 1.1 Polycentropus sp. 0.2 - 0.2 0.2 Oxyethira sp. - 0.2 Nacronychus glabratus - 0.2 Procladius sp. - 1.3 Ablabeseyia sp. - 0.2 1.1 Labrundinia sp. - 0.3 0.2 1.1 Larsia sp2 - 0.2 0.2 Thienelannimyia series - 0.2 Thienemannimyia sp. - 0.2 Cricotopus sylvesltis grp. - 0.2 Chironomus - 0.3 Desicryptochironosus 0.2 Cryptochironotus - 0.2 0.2 Dicrotendipes - - 0.3 Parachironomus 0.2 RheotinytarsesPolypedilum convictum - --0.2 0. 3 Tanytarsus - 0.5 Sioulium . 0.3 TOTAL XACROINVERTEURATES 0.0 7.4 0.5 4.5 2.9 84.3

D-54 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1998 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ------...... ------SITE:KANKAKEE RIVER ------DATEz 26JUL98 TIME: DAY NIGHT LOC.: LOC.: K2 K2 K3 DEPTH DEPTH DEPTH TOP TOP ROT TOP REP: REP: REP: REP: 1 2 2 I 2 (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Planayiidae - - 0.2 - - Hyalella azteca - 0.2 0.1 Hydracarina (acarina) 0.2 0.5 1.0 0.9 isnychia sp. - - 1.0 0.3 Baetis 5p. - 0.9 3.3 1.0' Centroptxlum - 0.2 0.9 0.9 Callibaetis - 0.9 4.9 5.1 Pseudocloeon sp. 0,2 2.1 Heptageniidae 0.1 H. maculipennis 0.4 Stenacron sp. - 1.2 - Stenonema sp. 2.0 4.7 - Tricorythodes sp. 2.0 3.7 0.4 Brachycercus sp. 0.6 1.9 1.3 Caenis 5p. 0.2 - 5.2 5.7 0.9 Potamanthus sp. - - 0.2 1.6 - Hexagenia sp, 0.2 - 8.1 63.2 2.9 Coenagrionidae 2.2 1.6 0.7 Arqiasp. 0.5 - Libellulidae - 01 Corixidae - 5.4 0.4 Hydroptilidae - - 0.1 Oxyetthira sp. 0.2 - - Nectopsyche sp. - 0.2 - Dineutus sp. 0.3 0.2 - Stenelmis sp. 0.5 0.2 - Chaob. punctipennis - - 0.1 Procladius sp. 1-.1 - Coelotanypus sp. - - - - Ablabesayxa sp. - 2.3 9.4 1.5 Labrundinia sp. - - 29.3 0.1 Larsia sp. - 3.0 - 1.7 Thienemannimyia series - 0.3 0.2 1.0 Thienesanniayia sp. - 0.2 - Chironomus - 0.5 - Cryptochironolus 0.2 - - 2.1 - Cryptotendipes - - 1.0 0.1 Dicrotendipes - - 0.5 0.9 Parachironomus - - - 0.1 Polypedilue sp. 0.9 - 0.9 Folypedilum convictum 0.3 - - - 0.6 Rheotanytarsus - - 0.6 4.7 0.3 Tanytarsus . 0.9 3.7 1.6 Cuelcidae 0.1 - - 0.1 Si ouliu s - 0.5 - Pbysa sp, 0.1 - 0.2 0.3 Corbicula fluminea - - 1.4 - TOTAL NACROINVERTEBRATES 0.9 0.5 32.9 158.9 24.3

D-55 COMODNWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 MACROINVFRTEDRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (I/1043) ------SITE=KANKAKEE RIVER ------DATE: 09AUG88 TIME: DAY LOC.: [2 DEPTH TOP REP: I (DEN)

SPEC IES Tricorythodes sp. 0.3 Coenagrionidae 0.5 sp. 0.2 DineuEnallagoa us sp. 0.2 T nytarsus 0.2 Phys a s. 0.8 Planotb'ldae 0.3 TOTAL MACROINVERTEBRATES 2.3

D-56 CDOIMMOWMAITHEDISON CIMPANY - BRAIDNDDD ST7AION - 1980 NACRDINVERTERRATE DATA DENSITY OFNACROINVERTBRATES FOREACH DATE AT EACH SITE El/10W3) ...... ------SITIE[ANKAKEE RIVER ------DATE- 16AUG98 TIRE- DAY NIGHT LOC.: K2 K3 K2 K3 DEPTH DEPTH DEPTH DEPTH TOP TOP 9OT TOP DOT TOP DOT REP: REP: REP: REP: REP: REP: REP: 2 a 2 2 1 2 2 1 2 1 (DEN)(DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) . . 0.0 . . . . .

SPECIES No Organisms Found Hydra - 0.3 0.2 - - 0.1 Planariidae 0.1 0.30.2 0.2 0.2 0.4 0.5 2.1 Cbaetopaseer diaphanus 0.2 0.2 Dero digitata Nais vaiiabiiis 0.1 Pristina ]eidyi O.2 0.3 - Stylaria lacustris 0.1 11.2 7.0 0.4 1.7 0.4 6.2 0.6 Glosbjphonildae - - - - - 0. - Hyalel a azteca 0.3 0.2 0.3 1.4 1.3 2.0 0.5 2.6 0.3 Hydracarina (acarina) - - - - 0.6 0.5 . 0.4 0.4 Isonychia Sp. 0.2 - 0.1 0.3 Baetis sp. 0.2 0.4 0.5 . 0.5 0.1 Centr.optilum - 0.2 - 0.2 Callibaetis 00.1 0.1 0.4 1.0 0.4 - 0.3 1.0 Pseudocloeon sp. - 0.2 0.5 - 0.1 Stenonerna sp. - 0.2 0.2 - 0.2 Tricorythodes sp. 0.3 0.8 0.4 1.3 0.5 3.7 Caenis sp. 0.1 0.- 1.0 0.5 - I.B 0.4 Potamantfs sp. - - 0.6 0.5 1.6 up. He'agenu 0.2 3.7 9.8 6.7 0.6 Coenagrionidae 0.2 0.7 0.8 0.3 0.6 1.5 0.9 0.2 3.1 0.7 Argia sp. - - - - 0.2 Enaliag a sp. 0.4 0.1 Aeshnidae - 0.2 0.2 0.2 9elastoratidae - 0.2 Trichoptera Hydropsychidae 0.1 Hydropsyche sp. - 0.2 HydropHydropt~iidae tia - 0.2. - 0.3 - 0.5 0xyethira sp. 0.1 o-0.4 0.7 Nectopsyche sp. - - - * - . - - - 0.21 OecetLS Sp. 0.1 Paraponyx sp. 0.1 - - 0.2 0.2 0.0 Dineutus Sp. '- . -0.2 0.3 Racronychus glabratus Stenelais sp. - 0.2 0.5 Ceratopogonidae -S - - 0.2 Ckaob. punctipennis - 0.4 0.8 - 0.1 1.3 Procladius sp. - o o - - 0.4 1.3 0.5 Ablabesunyja sp. 0.1S 0.2 4.4 2.3 0.5 1.2 2.9 Labrundinja sp. 0.2 - - 1.3 0.2 - 0.1 0.1 Larsia sp. 0.2 1.0 0.2 - 1.5 0.7 Thienemannimyia series * ------. 0.1 Thieneaanniey ia sp. - . . * - 0.1 Thieneaannie la sp. - 0.2 - 0.4 Cricotopus sp. Cricotopus hilnctus grp. o- 0.4 o0. Cricotopus sylvestris ggp. 0.2 0.2 - 0.1 Chironomus * -- - - 0.2 - - 0. Cryptochironomus -- 0.2 Dicrotendipes 0.2 - -0.1- - 0.2 2.3 0.2 0.3 1.3 Parachironolus - 0.2 0.2 0.1 Polypedilun sp. - - 0.3 0.2 0.3 1.0 o0.2 2.7 0.5 6.3 0.1 Rheotanytarsvslolypedilua convictum 0.1 0.3 - 1.2 0.4 - 2.0 0.1 Tanytarsus - - 0.9 - 0.2 - 0.1 Culicidae * ------0.2 - Psychoda - -- 0.1 Si fuliw1 *.~ 02 Pleurocera up. . 0.2 - - - - - Physa "p, 0.1 0.2 1.7 0.5 1.5 0.4 0.2 4.2 - Gyraulus sp. - 0.1 0.3 - - - - 1.0 0.1 - Ferrissia sp. 0.2 - - - TOTAL MACRO1NVERTESRATES 0.5-- 3.2 17.3 1.0 0.0 9.1 21.6 24.4 2.6 41.5 12.0 D-57 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1968 NACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------...... ------SITE=KANKAKEE RIVER ------DATE: 23AUG88 TIME: DAY NIGHT LOC.: LOC.: K2 K3 K2 K3 DEPTH DEPTH DEPTH DEPTH TOP TOP TOP DOT REP: REP: REP: REP: 2 1 2 1 2 I (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Stylaria lacustris 1.6 0.3 - 0.3 0.1 Hyalella azteca - - 0.4 . 1.1 Hydmacarina (aharina) - - - 0.2 Daetis sp. - 0.2 0.2 0.9 Pseudocloeon sp. - - - 0.1 Tricorythodes sp. - 0.1 0.2 Caenis sp. - - - 0.1 Hexagenia sp. - 0.2 1.0 Coenagrionidae - 0.1 0.8 1.0 Belas oaatidae 0.1 - Hydroptila 0.2 - Oxyetira sp. Ol0 0.2 0.1 Pyralidae 0.2 - - - Chaob. punctipennis - - 0.1 - - Procladius sp. 0.7 0.8 Coelotanypus sp. 0.2 Ablabesayia sp. 0.2 0.3 0.5 Labrundinia sp. - 0.2 0.3 Larsia sp. 0.2 0.2 - Cricotopus bicinctus grp. - 0.1 - - Cryptochironolus - 0.1 - - Dicrotendipes - 0.2 0.7 0.1 Polypedilum sp. - 0.1 Polypedilum convictum - 0.2 Rheot anytarsus 0.2 - 0.1 - - Tanytarsus - 0.3 Pleurocera sp. - 0.3 - Physa sp. 0.2 0.4 0.2 Ferr.ssia sp. 0.2 - - - TOTAL MACROINVERTEDRATES 2.5 0.6 0.8 1.4 4.9 6.6

D-58 COMMONWEALTH EDISON COMPANY- BRAIDNOOD STATION - 198B MACROINVERTEBRATE DATA DENSITY OF MACROINVERIBRATES FOR EACHDATE ATEACH SITE (1/1003) ...... ------SITE:KANKAKEE RIVER ------DATE: 30AUG88 TIME: DAY NIGHT LOC.: LOC.: 12 K3 K2 [3 DEPTH DEPTH DEPTH DEPTH TOP TOP DOT DOT REP: REP: REP: REP: 1 I 2 I 2 I (DEN)(DEN) (DEN)(DEN) (DEN) (DEN)

SPECIES Hydra - 0.3 0.2 0.2 - - P anariidae 0.2 0.8 0.2 0.2 - 0.2 Dero diqitata . 0.2 - - - Ophidoniis serpentina 0.2 Pristina Ieidyi - - 0.2 Slavina aýpendiculata 0.2 Stylaria ]acustris 0.5 2.7 0.2 0.8 0.7 HyaleIla azteca 0.5 12.5 2.0 0.2 0.2 0.2 Hydrararina (acarina) 0.7 0.2 0.3 0.7 0.3 Baetis sp. S- - 0.2 0.2 0.3 Centroptilua - -0.2 0.2 Callibaetis 0.5 0.4 0.2 Pseudocloeon sp. - 0.2 Heptageniidae - - 0.2 . 0.2 r icorythodes sp. 0.5 0.2 0.5 0.5 - 0.2 Caenis sp. - 0.2 0.3 2.1 0.9 Potaa nthus sp. - - - 0.2 Hexaqenia sp. - - . 1.6 1.2 0.5 Coenagrionidaeip. 1.3 1.0 0.4 1.0 1.6 1.2 Argia 0.2 - Corixidae S - - 0.2 Hydroptilidae 0.2 Nydropt ia - 0.2 0.2 Oxyethira sp. 0.2 0.2 0.2 0.2 uecetis sp. - - 0.2 - Petrophila sp. - 0.2 - Laccophilus sp. - - 0.2 Peltodytes sp. - 0.2 Hydrophilidae - 0.2 Tropisternas sp. 0.2 - 0.3 Enochrus sp. - 1.0 - - Ceratopogonidae 1.9 0.2 Chaob. punctipennis - - 0.3 0.2 Procladius sp. - 1.4 1.1 0.5 Coelotanypus sp. - - 0.2 0.4 0.5 AblabesNyxa Sp. 0.3 0.2 1.1 0.5 Labrundinia sp. 0.2 - 0.2 - Larsia sp. 0.2 10.1 0.2 0.8 0.2 - Thienemannimyia series - - - 0.2 Corynoneura sp. . 0.2 - Cricotopus bicinctus grp. 0.2 - - Dicrotendipes - 0.2 - 0.2 0.2 Polypedilue sp. - 0.2 - 0.3 0.2 0.2 Polypedilum €onvictsa 0.3 3.7 0.7 0.6 - 0.7 Rheotanytarsas 0.3 0.5 0.4 0.5 0.2 0.2 Tanytarsus . 0.2 - Cmlsiidme 0.2 -. . . . Fsyckoda 0.5 1.3 0.2 Simulfidae - 0.2 Siuulium - 0.2 Stratomyiidae 0.2 Tabanus sp. . 0.2 P&ysa sp. 0.2 2.0 0.4 0.3 - 0.2 Gyraulus sp. 0.2 0.3 1.2 - 0.2 - Ferrissia sp. 0.2 0.3 - 0.2 Corbicyla flusinea - 0.2 TOTAL NACROINVERTEDRATES 8.9 39.2 7.5 11.9 10.8 8.4 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF MACROINVERTIRATES FOR EACH DATE AT EACH SITE (0/1003) ...... ------. SITE:KANKAKEE RIVER ------DATE= 06SEP8F TIME: DAY NIGHT LOC.: LOC.: K2 K2 K3 DEPTH DEPTH DEPTH TOP DOT TOP DOT DOT REP: REP: REP: REP: REP: 2 1 2 2 1 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra - 0.2 - - Stylaria lacustris 4.1 " 0.2 0.5 0.8 1.7 Hyalella azteca 0.9 - 0.2 2.1 1.0 3.3 Hydracarina (acarina) 1.1 0.6 0.3 DietUs sp. 0.2 1.0 1.0 0.9 Centropt: - - 0.2 - 0.3 Callibaetis - - 0.3 0.8 0.7 Pseudocloeon sp. - 0.2 1.0 0.2 Daetisca sp. - - 0.3 0.8 0.5 Heptageniidae 0.8 - Stenacron sp. - 0.6 - 0.2 Stenoneua sp. 0.2 - Tricorythodes sp. - 1.0 0.2 1.6 0.2 Brachycercus sp. - 0.2 0.4 Caeni5 sp. 0.2 3.7 2.3 1.7 Potaianthus sp. - - 0.2 0.4 Hexagenia sp. - - 4.1 2.5 3.7 Coenigrionidae 0.5 0.2 0.2 3.3 2.3 1.7 Aeshnidae - - - - 0.4 - Potaayia flava 4.1 - - Oxyethira sp. - 0.2 - 1.0 2.1 1.4 Petrophila sp. - 0.2 - - Peltodytes sp. - - - 0.2 Ceratopogonidae 0.5 - 0.2 Procladius sp. - 0.5 0.6 0.7 Coelotanypus sp. 0.2 - Ablabeseyia sp. - 0.2 - 1.1 1.5 - Thieneaannimyla series - - 0.2 - 0.2 Thienesannimyja Sp. - 0.3 Cricotopus sylves tris grp. 0.2 - ChironosusCryptochironomus 0.2 -. - 0.2- Dicrotendipes 0.2 - 0.7 Polypedil,, sp. - 0.2 Polypedilum convictum - 0.2 - 0.2 0.2 0.9 Rheotanytarsus 0.2 0.2 0.2 - - Pleurocera sp. 0.2 - - - Physa sp. 0.5 0.8 0.2 - - Gyraulus sp. 0.2 - 0.2 - 0.2 Ferrissia sp. 0.2 - - TOTAL MACROINVERTEDRATES 11.7 2.9 1.1 23.2 19.9 20.4

D-60 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENS1TY OF NACROINVERTDRATES FOR EACH DATE ATEACH SITE (#/10*3) ...... ------SITE=KANKAKEE RIVER ------DATE= 13SEP6B TIME: DAY NI1HT LOC.: LOC.: K2 K3 K2 K3 DEPTH DEPTH DEPTH DEPTH DOT TOP DOT TOP DOT REP: REP: REP: REP: REP: 1 2 I 1 I 2 (DEN) (DEN) (DEN) (DEN) (DEN! (DEN)

SPECIES Stylaria lacustris - 0.4 0.3 0.3 Hyalella azteca - 0.2 2.0 0.3 1.7 Hydracarina (acarina) - 0.2 1.7 0.2 0.4 Isonychia sp. - - 0.1 Baets p. - - 3.8 - 3.6 Callibae is - - 0,7 0.2 2.0 Pseudocloeon sp. 1.1 - 0.7 Baetisca sp. - 0.2 - Stenacron sp. - 0.2 - - Tricorythodes sp. 1.1 Caens ,- 2.9 1.3 PotaiantLu sp. 0.1 - Hexagenia sp. 0.6 0.5 Coenagrionidae - 2.3 0.4 Argia sp. - 0.1 - Corydalus cornutus - 0.1 HydroptziaHydropsyche sp. - O.00.1 - oxyet ira sp. 0.2 0.3 0.9 18.6 0.3 3.3 Paraponyx sp. - - 0.1 - Stenelmis sp. 0.2 - - Procladius sp. 1.6. 2.0 Coelotanypus sp. - - 0.4 - 0.3 Ablabesayia sp. - 0.7 - 0.5 Labrundinia sp. - 0.1 - - Larsia sp. - 0.6 - 0.4 Corynoneura sp. -- 0.1 Thienesanniel1a sp. - 0.4 Cricotopus sp. - - 0.2 - Cricotopus bicinctus grp. - 0.4 0.4 - 0.1 Cricotopus sylvestris grp. - 0.2 Dicrotendipes - - 0.8 0.5 Parachironomnus - - 0.1 Polypedilua sp. - 0.1 0.2 - Polypedilu. convictum 0.5 - 0.4 1.1 0.2 0.8 Rheotanytarsus 0.2 - 0.4 0.7 . 1.1 Physa sp. 0.7 - 0.4 0.9 - - Ferrassia -p. - - 0.4 TOTAL SNACROINVERTEDRATES 2.0 0.3 3.2 44.4 1.9 20.9

D-61 EA Project 10091

APPENDIX E

RESULTS OF SURVEYS TO DETERMINE THE DISTRIBUTION OF THE PALLID CHUB (HYBOPSIS AMNIS) IN THE KANKAKEE RIVER

Prepared for

Commonwealth Edison Company 2 N. LaSalle Chicago, IL 60690

Prepared by

EA Science and Technology 612 Anthony Trail Northbrook, Illinois 60062

November 1989 INTRODUCTION

Effective 15 March 1989, the pallid chub (Hybopsis amnis) (also known as the pallid shiner, Notropis amnis) was classified as endangered by the Illinois DOC. EA has been collecting impingement samples at the Braidwood Nuclear Station since October 1988. On 27 April 1989 a pallid chub was found in the impingement collection, followed by the collection of several others in early May. Their appearance was not unexpected because the Kankakee River near the Braidwood Station harbors one of the few known populations of this species in the state (Skelly and Sule 1983). Because pallid chub had appeared in the impingement collections, it was decided to make collections at a number of Kankakee River loca- tions to determine more about the distribution and abundance of this species.

E-1 METHODS

Collections were made on the Kankakee River during two periods; 16-18 May and 31 May - 1 June 1989. All collections were in the mainstem Kankakee and its adjacent side channels, except for one collections made in Horse Creek, a Kankakee River tributary located near the Braidwood Station. Before the first sampling trip, an Endangered Species Collecting Permit was obtained from Illinois DOC which allowed EA to collect one pallid chub per location up to a maximum of 15 individuals. The collections in mid-May covered most of the Illinois portion of the Kankakee River, from the Indiana border to the 155 bridge. The second set of collections consisted of intensively sampling the river from the Warner Road bridge on the Will/Kankakee County line to the Braidwood Station, the area where all known records of the pallid chub in the Kankakee have occurred. Each sampling location is described in Table 1. Included were five locations sampled by Skelly and Sule (1983) plus an additional 27 locations.

All collections were made using a 30 ft. long x 6 ft. deep bag seine with 3/16" mesh in the straight part of the seine and 1/8" mesh in the bag. Collections were largely confined to those habitats most likely to harbor pallid chubs (i.e., slack water areas over a mud or clay bottom) (Skelly and Sule 1983). Thus, few riffle species were collected. Depending on the quantity and quality of habitat and the presence or absence of species known to associate with the pallid chub (e.g., bullhead minnowt Skelly and Sule 1983) three to ten seine hauls were made at each location. To reduce handling stress, the bag portion of the seine was kept in the water and the fish in it were carefully examined to see if any pallid chubs were present. If more than a few pallid chubs appeared to be present, all specimens that looked like pallid chubs (primarily pallid chubs and mimic shiners) were placed in a pail of water for further examination. One pallid chub was kept at each location as a voucher specimen. At four locations, a second specimen that had been injured during the course of handling and would not survive was also kept. Field and laboratory identifications were made by Mr. Greg Seeqert, senior biologist at EA. All specimens collected during this study were deposited with the Illinois Natural History Survey. The 12 pallid chubs that were retained have been verified by Dr. Lawrence Page, Illinois Natural History Survey.

E-2 RESULTS

Collections at the 32 localities yielded a total of 96 pallid chubs, more than have been collected in 11 years of monitoring,(1977-1988) in a 2.5 km area near the Braidwood Station (INHS 1989). The pallid chub was most common vO.3 mile downstream of the Braidwood Station in the area designated as Location 5 by Skellyand Sule (1983). A single seine haul at Location 5R on 16 May yielded 44 pallid chubs, with another haul on 1 June yielding 6 more specimens for a total of 50 from this location in two seine hauls (Table 2). Two seine hauls on 16 May at Location 5L yielded 10 pallid chubs. We did not sample this location on 1 June. No pallid chubs were collected at the four locations sampled downstream of Locations 5L/5R (i.e., Locations 14-17). Pallid chubs were collected at 7 of the 16 locations sampled between the Warner Road bridge and the RR trestle in Custer Park (i.e., Locations 1-13, 1L, 1R, and 27). The seven locations at which it was collected and the number collected were as follows: Location Specimens 6 8 7 4 9 1 11 12 12 8 13 2 1L. 1 Six of these seven locations (all except Location IL) are upstream of where the species has been reported in recent years (Skelly and Sule 1983, INHS 1988). It was fairly common (4-12 specimens) at Locations 6, 7, 11, and 12 but it was represented by only one or two specimens at Locations 9, 13, and IL.

One other listed species was captured during this study. Single juvenile river redhorse (Moxostoma carinatum) were collected at Location 6 (where pallid chub was quite common) and at Location 26. Other noteworthy records were the collection of pugnose minnow (Notropis emiliae) at the state line (Location 19), starhead topminnow (Fundulus di ) at Warner Road bridge (Location 1), and rudd (Scardinius erythrophthalmus) at Locations 1 and 27. The collection of large numbers of ghost shiners (Notropis buchanani) at several locations was also unexpected. The quality and richness of the Kankakee River ichthyofauna is exemplified by the fact that 59 species (Table 3) were collected by seining alone, a gear that is not particularly effective for many large species. The high quality of the fish community is further demonstrated by the fact that these 59 species were collected without even sampling riffles or areas with hard substrates.

E- 3 DISCUSSION

Past surveys of the Kankakee River have found pallid chubs to be either absent (Page et al. undated; Brigham et al. 1981) or uncommon and highly localized (Skelly and Sule 1983, INHS 1989). For example, Page and his colleagues sampled 13 Kankakee River stations in July and Auqust, 1978 and 7 stations in October and November 1979, and did not collect any pallid chubs. The Illinois Natural History Survey (INHS) has been seining and electrofishing six stations in a 2.5 km reach of the Kankakee River near the Braidwood Station annually since 1977. Most of their collections have been made in the summer (usually August). These summer collections yielded 85 pallid chubs through 1988 (INHS 1989). It was common only in 1984 when 49 individuals were collected. It was represented by four or fewer individuals in 8 of the 11 years, and was not collected in the two most recent years of the survey (i.e., 1987 and 1988). Furthermore, the INHS studies suggest that not only is it uncommon, but also that it is highly local in its distribution. Of the 85 specimens reported by INHS (1989), 82 have been collected from a single location (Location 5) downstream of the Braidwood Station.

The results of the present study clearly show that the distribution of the pallid chub is not as restricted as previously thought. We collected it at six locations (Locations 6, 7, 9, 11, 12, and 13) upstream of the 2.5 km reach studied annually by INHS; it was reasonably common at three of those locations. However, the actual abundance of the species is still unclear. On one hand, the fact that we collected 96 pallid chubs in one year suggests that their population may be higher than is suggested by the collection of 85 specimens in 11 years by INHS. Alternatively, however, it may be that because of spawning activities and movement, pallid chubs are more susceptible to capture in the late spring/early summer when we sampled than they are in mid-summer when INHS samples. Similarly, the low number of specimens collected by the INHS (INHS 1989) may be the result of August being a particularly difficult time of year to collect this species --- e.g., perhaps they move into deep water during the summer to avoid high water temperatures. More data are needed to determine whether pallid chub populations are higher than previously thought or whether their apparent abundance is an artifact associated with increased sampling efficiency in the spring and/or decreased sampling efficiency in the summer.

None the less, we find it encouraging that the species is more widely distributed than previously thought. Because most minnows are non- migratory, the collection of pallid chubs at six locations upstream of the Braidwood Station indicates that breeding takes place in several areas of the Kankakee River rather than at a single location downstream of the Braidwood Station.

Forty-two other species were collected at the locations where pallid chubs were found. Five cyprinid species (striped shiner, spotfin shiner, mimic shiner, bluntnose minnow, and bullhead minnow) occurred at all seven of the locations at which pallid chubs were collected, and eight other species (ghost shiner, redfin shiner, golden redhorse, shorthead redhorse,

E-4 0

rock bass, orangespotted sunfish, longear sunfish, and johnny darter) occurred at six of these seven locations (Table 4). Based on frequency of occurrence, bullhead minnow and ghost shiner are the species most strongly associated with pallid chubs in the Kankakee River (Table 4). Skelly and Sule (1983) previously noted the close association between pallid chub and bullhead minnow. Pallid chub was also strongly associated with rock bass, juvenile golden redhorse, mimic shiner, striped shiner, johnny darter, and juvenile shorthead redhorse. It showed strongly negative associations with hornyhead chub and sand shiner. Although riffles were not sampled during this study, it is reasonable to conclude that benthic riffle species, especially those that use riffles at all life stages (e.g., northern hogsucker), would also show a negative association with the pallid chub.

The habitats in which we collected pallid chubs were slack-water areas over silt or clay substrates, with rooted macrophytes typically being sparse or absent. Locations 5L and 5R, where the species was most abundant, are depositional areas with no current, silt substrates, and sparse to moderate aquatic vegetation. All other areas, however, had clay substrates with little or no aquatic vegetation. Interestingly, we sampled many depositional areas whose habitats resembled those at Locations 5L and 5R without collecting any pallid chubs. These areas were typically on the downstream end of islands or on the downstream side of small points of land that jutted out into the river. We also sampled numerous side channels and backwaters near the Illinois-Indiana border without finding any pallid chubs. Aquatic vegetation in these areas ranged from none to dense. Except for 5L and 5R, the areas in which we collected pallid chubs were slack-water areas, but ones that were along the shore of the river, just off the main current. They could best be described as main-channel border habitat. The absence of pallid chubs in backwaters and side channels indicates that the absence of current is not the sole factor affecting their distribution. Main-channel border habitats that have soft substrates are quite limited in the Kankakee River. Such areas are frequently not sampled during fisheries surveys.

Finally, we should note that on the day we sampled, major construction activities were underway at Location 6; the upstream-most location at which we collected pallid chubs. These activities consist of clearing a right of way on either bank, apparently to be followed by laying a pipeline across the river. On the day we were there, a considerable amount of erosion was taking place on the denuded hillsides because of heavy rains. Adverse impacts to the pallid chubs at Location 6 and downstream locations are possible depending on the amount of erosion control, the time the banks are exposed, and the type and extent of the activity associated with laying or burying the pipeline.

E-5 REFERENCES

Brigham, A.,.L. Suloway, and L. Page. 1981. The effects of sedimentation on aquatic life of the Kankakee River. Doc. No. 81/37. Ill. Dept. Energy and Natural Resources. Chicago, IL.

Illinois Natural History Survey. 1989. Kankakee river fishes of the Braidwood Station Aquatic Monitoring Area, August 1988. INHS Aquatic Biol. Tech. Rpt. 89/1, INHS, Champaign, IL.

Page, L.M., P.W. Smith, L.B. Suloway, A.R. Brigham, D.W. Webb, J.D. Unzicker, andI W.U. Brigham. (undated) The effects of sedimen- tation on aquatic life of the Kankakee River. Phase I. Illinois Nat. Hist. Surv., Urbana. 86 pp.

Skelly, T.M., and M.J. Sule. 1983. The pallid shiner, Notropis amnis Hubbs and Greene, a rare Illinois fish. Transactions of the Illinois State Academy of Science 76!131-138. TABLE 1. SAMPLING LOCATIONS IN THE KANKAKEE RIVER. Station Quad Description 1 Bonfield Side channel on south shore of river immediately downstream of the Warner.Rd (WR) bridge (Will/ Kankakee Co. line) 2 Bonfield Upstream end of side channel along north side of the first island downstream of WR bridge 3 Bonfield Downstream end of the same side channel 4 Bonfield Tailwater area downstream of the last of the large islands in the Smith Islands group 5 Bonfield Downstream end of a small midchannel island located about 2 miles downstream of WR bridqe 6 Bonfield South shore of the river -2.6 miles downstream of WR bridge. At a pipeline crossing. 7 Boofield South shore of the river -3.2 miles downstream of WR bridge 8 Bonfield Channels along either side of Hoffman Island 9 Bonfield South shore of river immediately upstream of the mouth of Terry Creek 10 Bonfield Area behind small peninsula on the north side of the river, ,0.5 mile downstream of Terry Creek 11 Bonfield South side of river-1 mile downstream of Terry Creek 12 Bonfield South side of river ~1.3 miles downstream of Terry Creek 13 Bonfield North side of river -0.6 mile upstream of the RR trestle in Custer Park 14 Wilmington East side of river -2 miles downstream of Custer Park 15 Wilmington Upstream end of side channel to the east of the Wilmington dam 16 Wilmington Side channel at Rt 66 17 Wilmington East shore downstream of island located -1 mile downstream of Wilmington 18 Illiana Heights Backwater on the north side of the river, just on the Indiana side of the border 19 Illiana Heights Side channel on the east side of the river at the state line 20 Illiana Heights Side channel on the north side of the river about 0.4 mile west of the state line 21 Illiana Heights Side channel on the south side of the river about 0.4 mile upstream of Woodland 22 Illiana Heights Side channel on the north side of the river at Woodland 23 Kankakee West side of river, midway between Aroma Park and Momence 24 Kankakee Immediately downstream of bridge in Aroma Park 25 Bourbonnais At Willow Island 26 Bonfield Immediately upstream of Warner Rd bridge 27 Bonfield South shore of the river adjacent to Smith Islands

E-7 TABLE 1. (CONT.)

Station Quad Description

1L* Bonfield North shore of river -0.4 mile upstream of the RR trestle in Custer Park 1R* Bonfield South shore of river -0.4 mile upstream of the RR trestle in Custer Park 5L* Wilmington East shore of river -0.7 mile downstream of the RR trestle in Custer Park 5R* Wilmington West shore of river vO.7 mile downstream of the RR trestle in Custer Park HC* Essex In Horse Creek, about 100 m from its confluence with the Kankakee River * Locations sampled by Skelly and Sule (1983)

m

E-8 TABLE 2. RESULTS OF SEINE COLLECTIONS MADE AT LOCATIONS ON THtEKANKAKEE RIVER, MAYAND JUNE 1989. Stations Species 213 4 5 S a 6 7 8 9 10 1 12/IR b 13/1L 14/14' 15 16 b 17 18b 19 20 21 22 b 23 24 . 25 26 27 H.C.C Longnose gar x Gizzard shad X xK Grass pickerel Kx Northern pike Central stoneroller x Carp x x Hornyhead chub x x x x x x K x K K I K K Golden shiner X x K x X Pallid shiner (chub) 50/10 8 4 - I - 12 a 3 - Emerald shiner x x x Ghost shiner X x x K x x x x K Striped shiner x x x x x x x x X X X K K K K x Pugnose minnow Red shiner x K x Rosyface shiner x K K X x K x K K Spotfin shiner x x X x I x x x x x K x X X x X X x x K K K Sand shiner x K K X x X K x x X K Redfin shiner x x x x x x x K x K K K xX x Mimic shiner X X X x x x x x x x K x x K x x x x x K Bluntnose minnow x K x x x I x X x I x I K Fathead mfnnow x x K K x x x Oullhead minnow X K X x x x x x K K Creek chub K rl Qull1back X x K 1 White sucker X Northern hogsucker Smallmouth buffalo K Spotted sucker K Silver redhorse X K K x x x x x x x River redhorse K x Black redhorse K x x Golden redhorse K x K x x X X X x x x K K Shorthead redhorse K K K K x x X X X x x K X X K Black bullhead K Yellow bullhead X K K K K X Brown bullhead Channel catfish K K Tadpole madtom x K K X X x t x x Blackstripe topainnow x x x K K x x K Starhead topminnow X O'rook silverside X K K K x K K x x K K X x Rock bass X x K X x K x x Green sunfish I X K X K Pumpkinseed K K Orangespotted sunfish I x K I x K K I I x K K Blueill x X X K x K K X Longear sunfish x X x K x K XK K K X x Siallouth bass I X X X X K x K x X X La.gemouth bass X X x White crapple x Black crappie I I x x x I I x Johnny darter x x x x X x x K K x x x x x Banded darter X x x K X x X X Yellow perch K Loqverch x x x K x K x x K K K Blackslde darter x K K x X X K I Slenderhead darter I x x K x Walleye X

Total Species 34 19 15 15 33 21 16 16 16 17 26 19 24 10 17 11 10 7 2 16 20 17 15 24 14

a Results from collections on two dates. b No specimns retained. C ur. Hn-p Crooek TABLE 3. FISHES COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK IN 1989.

Scientific Name Common Name

Lepisosteus osseus Longnose gar Dorosoma cepedianum Gizzard shad Esox americanus Grass pickerel EsTox lucius Northern pike Cy-prin6us carpio Carp Notemigonus crysoleucas Golden shiner Semotilus atromaculatus Creek chub Nocomis biguttatus Hornyhead chub Hybopsis amnis Pallid chub Notropis atherinoides Emerald shiner Notropis buchanani Ghost shiner Notropis chrysocephalus Striped shiner Notropis emiliae Pugnose minnow Notropis lutrensis Red shiner Notropis rubellus Rosyface shiner Notropis spilopterus Spotfin shiner Notropis stramineus Sand shiner Notropis umbratilis Redfin shiner Notropis volucellus Mimic shiner Pimephales notatus Bluntnose minnow Pimephales promelas Fathead minnow Pimephales vigilax Bullhead minnow Scardinius erythrophthalmus Rudd Campostoma anomalum Common stoneroller Ictiobus bubalus Smallmouth buffalo Carpiodes prinus Quillback Moxostoma anisurum Silver redhorse Moxostoma carinatum River redhorse Moxostoma duquesnei Black redhorse Moxostoma erythrurum Golden redhorse Moxostoma macrolepidotum Shorthead redhorse Hypentelium nigricans Northern hogsucker Catostomus coninersoni White sucker Minytrema melanops Spotted sucker Ictalurus melas Black bullhead Ictalurus natalis Yellow bullhead Ictalurus nebulosus Brown bullhead Ictalurus punctatus Channel catfish Noturus gyrinus Tadpole madtom Fundulus dispar N. starhead topminnow Fundulus notatus Blackstripe topminnow Labidesthes sicculus Brook silverside Micropterus dolomieui Smallmouth bass Micropterus salmoides Largemouth bass Lepomis cyanellus Green sunfish Lepomis gibbosus Pumpkinseed Lepomis humilis Orangespotted sunfish Lepomis macrochirus Bluegill Lepomis megalotis Longear sunfish Ambloplites ruestris Rock bass Pomoxis annularis White crappie Potmoxis nigromaculatus Black crappie

E-1O TABLE 3. (CONT.)

Scientific Name Common Name

Stizostedion vitreum Walleye Perca flavescens Yellow perch Percina caprodes Logperch Percina maculata Blackside darter Percina phoxocephala Slenderhead darter Etheostoma nigrum Johnny darter Etheostoma zonale Banded darter

E-11 TABLE 4. COMPARISON BETWEEN FREQUENCY OF OCCURRENCE AT LOCALITIES WHERE PALLID CHUBS OCCURRED AND FREQUENCY OF OCCURRENCE AT ALL LOCATIONS SAMPLED. Frequency of Occurrence (%) Pallid Pallid Chub Chub All Minus All Locations Locations Locations

Bullhead minnow 100 63 37 Ghost shiner 71 40 31 Rock bass 86 58 28 Golden redhorse 86 58 28 Mimic shiner 100 75 25 Striped shiner 100 75 25 Johnny darter 86 63 23 Shorthead redhorse 86 63 23 Bluntnose minnow 100 79 21 Redfin shiner 86 67 19 Yellow bullhead 43 25 18 Banded darter 57 42 15 Blackside darter 57 42 15 Orangespotted sunfish 86 71 15 Longear sunfish 86 71 15 Tadpole madtom 43 29 14 Slenderhead darter 43 29 14 Black crappie 43 29 14 Spotfin shiner 100 91 9 Logperch 57 50 7 Green sunfish 29 25 4 Brook silverside 57 54 3 Rosyface shiner 43 42 1 Smallmouth bass 43 42 1 Silver redhorse 43 50 -7 Largemouth bass 29 37 -8 Golden shiner 14 25 -11 Bluegill 29 42 -13 Sand shiner 29 46 -17 Hornyhead chub 29 50 -21

E-12 APPENDIX F IMPINGEMENT -- DAILY FISH COLLECTION SUMMARY, 1988-1989

F-i 1988-B9 BRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: IIOCT 12DCT 170CT IBOCT 190CT 240C1 250CT 260ET 31OCT OINOV 02NOV 07NOV OBNOV 09NOV IINOV I5NDV IGNOV 21NOV LONGNOSE BAR ------GIZZARD SHAD 505 124 53 69 95 67 98 128 21 31 41 52 16 36 22 8 55 234 GRASS PICKEREL ------NORTHERN PIKE - - - - GOLDFISH -... . COMMON CARP -- - I - I I HORNYHEAD CHUB .- - GOLDEN SHINER - -I - I I3 PALLID SHINER - - -- EMERALD SHINER - - - 2 GHOST SHINER .-.. STRIPED SHINER - - 3 1 RED SHINER ... - ROSYFACE SHINER I 1 2 5 SPOTFIN SHINER - - .- 2 SAND SHINER - - - - - REDFIN SHINER - - - HIMIC SHINER - - 1 3 2 SPOTFIN X RED SHINER - - - SUCKERHOUTH MINNOW - - BLUNINOSE MINNOW - -. 3 FATHEAD MINNOW - - 2 1 - BULLHEAD MINNOW - - - 2 OUILLBACK - UNID CARPIODES -.. . WHITE SUCKER I - - NORTHERN HOG SUCKER -- - SMALLMOUTH BUFFALO -- - SPOTTED SUCKER -- - - SILVER REDHORSE - RIVER REDHORSE -- BLACK REDHORSE ... . GOLDEN REDHORSE . ... . SHORTHEAD REDHORSE - - - I - UNID MOIOSTOMA - -.. . . . BLACK BULLHEAD - -...... YELLOW BULLHEAD - - 1 I- - - BROWN BULLHEAD -...... - CHANNEL CATFISH - -...... STONECAT . . 1 I 4 I TADPOLE MADTOM ...... PIRATE PERCH -...... BLACKSTRIPE 1OPHINNOW - -...... BROOK SILVERSIDE - - - - I 1 YELLOW BASS ------ROCK BASS - I I - 9 4 2 26 8 4 13 4 5 13 5 12 28 GREEN SUNFISH ------I - 2 1 " - 1 3 5 ORANGESPOTTED SUNFISH ------I I - BLUEGILL - - - 2 1 3 2 - 1 - - 5 - 1 1 - 21 7 LONGEAR SUNFISH 3 -I - 4 I 2 4 3 - 2 - 2 5 3 10 5 HYBRID SUNFISH - - - .. . . UNID LEPOMIS - - - . .. . 7 SfALLMOUTH BASS 2 - 1 3 1 7 6 3 1 2 - - 6 1 5 2 LARGEMOUTH BASS - 3 5 1 - 2 1 I 1 1 2 3 WHITE CRAPPIE - - - - - I BLACK CRAPPIE - I I -...... RAINBOW DARTER ...... JOHNNY DARTER . . . .. BANDED DARTER ...... YELLOW PERCH ...... LOSPERCH ...... I " BLACKSIDE DARTER ...... SLENDERHEAD DARTER ...... FRESHWATER DRUM - - - I - - - -I TOTAL FISH 510 125 54 79 BB 93 114 144 59 47 47 00 23 46 52 23 128 310

F-2 198B-89 BRAIDNOOD IMPINSEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLIN6 DATE

SPECIES DATE: 22NOV 28NOV 29NOV 30NOV 05DEC 06DEC 07DEC 12DEC 13DEC 14DEC I9DEC 21DEC 26DEC 27DEC 28DEC 02JAN 03JAN O4JAN ... °....o...... o.° ...... -...... o ...... LONGNOSE BAR GIZZARD SHAD 305 351 104 180 174 33 20 16 38 82 214 691 2573 1126 1059 372 481 180 GRASS PICKEREL NORTHERN PIKE GOLDFISH COMMON CARP HORNYHEAD CHUB GOLDEN SHINER PALLID SHINER EMERALD SHINER GHOST SHINER STRIPED SHINER RED SHINER ROSYFACE SHINER 7 SPOTFIN SHINER SAND SHINER REDFIN SHINER mimIC SHINER 2 SPOTFIN X RED SHINER SUCKERMOUTH MINNOW BLUNTNOSE MINNOW 2 FATHEAD MINNOW BULLHEAD MINNOW 2 2 OUILLBACK UNID CARPIODES WHITE SUCKER NORTHERN HOG SUCKER SMALLMOUTH BUFFALO SPOTTED SUCKER SILVER REDHORSE RIVER REDHORSE BLACK REDHORSE GOLDEN REDHORSE SHORTHEAD REDHORSE 9 UNID MOXOSTOMA BLACK BULLHEAD YELLOW BULLHEAD BROWN BULLHEAD CHANNEL CATFISH STONECAT TADPOLE MADTOM PIRATE PERCH BLACKSTRIPE TOPMINNOW BROOK SILVERSIDE 2 YELLOW BASS 36 ROCK BASS 9 3 7 GREEN SUNFISH 1 ORANGESPOTTED SUNFISH I BLUE6ILL LONGEAR SUNFISH I 3 1 2 4 HYBRID SUNFISH I UNID LEPOMIS 1 SMALLMOUTH BASS I 2 G LAR6EMOUTH BASS I WHITE CRAPPIE BLACK CRAPPIE RAINBOW DARTER JOHNNY DARTER BANDED DARTER YELLOW PERCH LOGPERCH BLACKSIDE DARTER SLENDERHEAD DARTER FRESHWATER DRUM TOTAL FISH 354 429 122 202 237 50 29 26 59 98 288 707 2597 1130 1099 382 526 243

F-3 198B-89 PRAIDNOOD IMPINGEMENT STUDY - COMMONNEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 09JAN 1OJAN IIJAN I6JAN I7JAN IBJAN 233AN 243AN 25JAN 30AN 31JAN OIFEB OTFEB 13FEB 14FEB 15FEB 20FEB 2IFED ... oo.- ...... -- ...... -..-- o..o- ...... - ...... - ...... LONGNOSE GAR GIZZARD SHAD - 835 567 150 105 78 81 25 58 79 280 64 4 4 21 GRASS PICKEREL NORTHERN PIKE GOLDFISH COMMON CARP 1 - HORNYHEAD CHUB 2 2 5 6OLDEN SHINER 2 2 PALLID SHINER EMERALD SHINER GHOST SHINER STRIPED SHINER 2 RED SHINER 6 1 15 2 30 ROSYFACE SHINER 1 1 I - SPOTFIN SHINER 3 1 I Is 1 SAND SHINER 2 1 REDFIN SHINER 5 2 MIMIC SHINER 1 .2 I 3 1 4 2 SPOTFIN X RED SHINER - I SUCKERMOUTH MINNOW 2 6 5 BLUNTNOSE MINNOW 2 3 2 I 2 2 2 FATHEAD MINNOW 3 1 2 1 BULLHEAD MINNOW 2 2 21 2 1 2 2 OUILLBACK I 17 UNID CARPIODES WHITE SUCKER - I I NORTHERN HOG SUCKER 2 - SMALLMOUTH BUFFALO 2 SPOTTED SUCKER - 15 SILVER REDHORSE 3 2 2 14 3 3 7 RIVER REDHORSE BLACK REDHORSE GOLDEN REDHORSE - 2 I 8 2 - SHORTHEAD REDHORSE 4 3 13 5 2 9 UNID MOXOSTOMA 1 BLACK BULLHEAD I YELLOW BULLHEAD BROWN BULLHEAD - I CHANNEL CATFISH 2 - 2 STONECAT I TADPOLE NADTOM PIRATE PERCH 10I0 BLACKSTRIPE TOPHINNON 2 2 BROOK SILVERSIDE 28 15 2 I 1 6 3 5 YELLOW BASS 18 50 ROCK BASS 58 24 58 7 41 44 GREEN SUNFISH 2 2 3 3 2 4 -t I ORANGESPOTTED SUNFISH 1 - 1 I 3 2 1 BLUEGILL 2 3 3 LONGEAR SUNFISH 7 3 13 17 4 7 19 7 5 HYBRID SUNFISH 3 2 UN]D LEPOMIS SMALLMOUTH BASS 18 9 22 3 2 11 24 10 5 8 10 LARGEMOUTH BASS - I 1 - 4L WHITE CRAPPIE I - I BLACK CRAPPIE 2 - - 5 I RAINBOW DARTER JOHNNY DARTER BANDED DARTER * I YELLOW PERCH 2 - LOSPERCH BLACKSIDE DARTER - I 5 1 SLENDERHEAD DARTER FRESHWATER DRUM - I TOTAL FISH 0 931 656 304 1O0 134 201 129 125 52 79 137 454 158 40 37 146 31

F-4 1980-89 BRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 22FEB 27FEB 28FEB OIMAR OGMAR 07MAR OBMAR 13HAR I4HAR ISMAR 2OAR 2INAR 22MAR 27MAR 2BMAR IOAPR IIAPR 12APR ------LONGNOSE BAR ------GIZZARD SHAD 3 1 1 3 4 2 2 3 2 4 1 3 7 5 BRASS PICKEREL ------NORTHERN PIKE ...... GOLDFISH .... . I COMMON CARP I I - I I1- - - 2 1 HORNYHEAD CHUB - - 2 5 - 1 I - - - I - GOLDENSHIINER I t - 4 1 - 4 2 - 1 1 1 8 - PALLID SHINER ------EMERALD SHINER I 2 - - - GHOST SHINER - .- STRIPED SHINER I- - 11 3 10 2 RED SHINER ------ROSYFACE SHINER 24 3 1 14 24 19 33 3 2 - 6 1- 2 I SPOTFIN SHINER I - 7 1 4 13 16 38 17 9 25 - - 7 4 6 SAND SHINER ------I - I - - I REDFIN SHINER ------MIMIC SHINER - - - 1 2 - 2 3 3 6 1I 18t 2 3 SPOTFIN I RED SHINER ------SUCKERHOUTH MINNOW - I - BLUNTNOSE MINNOW 1 3 1 7 5 2 7 2 3 17 5 13 - FATHEAD MINNOW - - - I - 6 4 1 2 4 -- I BULLHEAD MINNOW - 2 3 4 1 I 1 1 4 5 OUILLBACK - 1 4 - " UNID CARPIODES - - WHITE SUCKER - NORTHERN HOG SUCKER - - 1 SMALLMOUTH BUFFALO - I - - SPOTTED SUCKER - " SILVER REDHORSE 1 4 7 7 II - RIVER REDHORSE - - - - - BLACK REDHORSE I - - GOLDEN REDHOR5E - 1 3 2 - 1 " SHORTHEAD REDHORSE 3 6 7 2 1 - " UNID MOXOSTOMA - - - - - BLACK BULLHEAD - 3 I - - I YELLOW BULLHEAD 1I- ] " BROWN BULLHEAD "-" CHANNEL CATFISH - 1 1 2 - - 4 - - 2 1 STONECAT I 2 3 1 3 3 - 3 - -I I TADPOLE HADTOM - - - PIRATE PERCH - - " BLACKSTRIPE TOPHINNOW - - - 1 .. . . BROOK SILVERSIDE 20 - - - 13 6 4 5 3 1 2 1 12 3 7. 1 YELLOW BASS ------ROCK BASS a 4 5 7 111116 146 76 22 51 90 13 154 24 2 17 24 9 GREEN SUNFISH I - - 4 5 1 1 9 - 6 2 7 - - - 2 ORANGESPOTTED SUNFISH I - - 2 I - 4 I 10 4 5 - 5 - 2 BLUEGILL - - - 3 - I B 5 14 IB 1 4 I - 8 7 4 LONGEAR SUNFISH - 2 - - 10 20 9 16 8 33 27 3 38 10 - 4 6 3 HYBRID SUNFISH - - - - - I ------UNID LEPOMIS ------SMALLHOUTH BASS 3 5 6 5 28 45 44 22 13 7 13 3 10 10 - 1 3 1 LARGEMOUTH BASS 1 - - 2 - - 3 1 - I - - " WHITE CRAPPIE - .- - - 2 - - I BLACK CRAPPIE - - I - 4 - I - 2 3 RAINBOW DARTER - I - - JOHNNY DARTER " I " BANDED DARTER "- I - " " " YELLOW PERCH - - I - I - " LOGPERCH - I - 3 1 4 2 3 3 2- 1 - BLACKSIDE DARTER 2 - - 2 I 2 2 3 8 7 -I - SLENDERHEAD DARTER I - - - - - FRESHWATER DRUM - - I I I - - TOTAL FISH 68 22 15 39 253 256 285 19i 104 187 224 47 324 61 5 57 S1 41

F-5 1988-89 BRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 19APR 24APR 25APR 26APR OIMAY 02MAY 03MAY OBMAY 09MAY IONAY 15MAY 16MAY I7MAY 22HAY 23MAY 24MAY 29MAY 30MAY LONGNOSE GAR GIZZARD SHAD 2 1 1 GRASS PICKEREL NORTHERN PIKE GOLDFISH 1 3 COMMON CARP HORNYHEAD CHUB GOLDEN SHINER - - - i 3 - 1 I 3 PALLID SHINER i1 " I I1 EMERALD SHINER GHOST SHINER STRIPED SHINER - - 1 - 2 RED SHINER ROSYFACE SHINER 2 1 1 8 8 1 2 SPOTFIN SHINER i 3 4 2 1 SAND SHINER REDFIN SHINER MIMIC SHINER S1I 2 2 4 5 2 SPOTFIN X RED SHINER SUCKERMOUTH MINNOW BLUNTNOSE MINNOW I - ] I 1 4 FATHEAD MINNOW i 3 I I BULLHEAD MINNOW 4 2 1 1 GUILLBACK - I I -I UNID CARPIODES WHITE SUCKER NORTHERN HOG SUCKER SMALLMOUTH BUFFALO 1 - SPOTTED SUCKER SILVER REDHORSE RIVER REDHORSE BLACK REDHOPSE GOLDEN REDHORSE - 2 3 SHORTHEAD REDHORSE UNID MOXOSTONA BLACK BULLHEAD YELLOW BULLHEAD BROWN BULLHEAD CHANNEL CATFISH 2 1 3 - 3- STONECAT - 1 2 1 TADPOLE HADTON PIRATE PERCH BLACKSTRIPE TOPMINNOW BROOK SILVERSIDE I I i 11 YELLOW BASS 3 1 22 4 - 4 3 ROCK BASS 3 3 4 4 5 10 6 GREEN SUNFISH 1 2 - - - 1 ORANGESPOTTED SUNFISH - -- - I I - 5 - 1 2 3 - BLUEGILL 6 1 3 1 2 I! LONGEAR SUNFISH HYBRID SUNFISH UNID LEPOMIS SMALLMOUTH BASS 1 2 2 3 2 1 2 - LARGENOUTH BASS 1 - - WHITE CRAPPIE 2 3 3 1 - 31 - BLACK CRAPPIE RAINBOW DARTER JOHNNY DARTER BANDED DARTER YELLOW PERCH 1 1 3 - LOGPERCH 1 1 1 BLACKSIDE DARTER SLENDERHEAD DARTER FRESHWATER DRUM 36 14 22 16 41 47 30 14 TOTAL FISH 25 26 17 14 15 11 22 9 71 60

F-6 1988-89 BRAIDWOOD IMPINGEMENT STUDY - COMMONNEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 31MAY 05JUN 0OJUN O7JUN I2JUN M3TUN i4JUN 193UN 203UN 21JUN 263UN 27JUN 28JUN 04JUL 05JUL IOJUL IIJUL i23UL ------LONGNOSE 6AR - - GIZZARD SHAD i - GRASS PICKEREL - - - - - 1 2 - NORTHERN PIKE 2 .-.. . GOLDFISH ...... COMMON CARP - - I 1 " " " HORNYHEAD CHUB - I - I - I 1 " I I GOLDEN SHINER 3 - - - I - PALLID SHINER 3 1 I ...... EMERALD SHINER - - - GHOST SHINER - - -- - STRIPED SHINER 2 5 5 5 1 2 3 5 3 - 2 RED SHINER ------ROSYFACE SHINER 4 - 3 - - I - -I- SPOTFIN SHINER 1 4 4 4 1 - 3 2 - 4 5 3 3 - 2 SAND SHINER - I ------REDFIN SHINER - - - - - I - - - NIMIC SHINER 9 2 1 I1 3 1 - - " SPOTFIN I RED SHINER ------SUCKERMOUTH MINNOW - - - BLUNTNOSE MINNOW 5 1 1 1 1 2 I - FATHEAD MINNOW I - - - BULLHEAD MINNOW 3 - i - 1 2 QUILLBACK " I - UNID CARPIODES - - WHITE SUCKER NORTHERN HOG SUCKER " SMALLMOUTH BUFFALO SPOTTED SUCVER " " " SILVER REDHORSE RIVER REDHORSE I " " BLACK REDHORSE GOLDEN REDHORSE I - " 1 SHORTHEAD REDHORSE ! - 2 - UNID MOXOSTOMA I I .-. . BLACK BULLHEAD ... . . YELLOW BULLHEAD I - - ...... BROWN BULLHEAD ...... CHANNEL CATFISH I - I - 1 1 2 - - I - - -1 STONECAT 3 - I I I - - 1 3 " " 3 TADPOLE HADTOM - .. -- -- PIRATE PERCH " " BLACKSTRIPE TOPMINNOW - - - - - BROOK SILVERSIDE I - YELLOW BASS . - "° ROCK BASS 1 I I I 5 I - 2 1 2 1 GREEN SUNFISH " I I I I - - - ORANGESPOTTED SUNFISH 3 2 1 I I 2 BLUEGILL - 1 I I - 1 1 2 1 - - I LONGEAR SUNFISH 5 iI I 1 3 2 3 - -1 HYBRID SUNFISH ------UNID LEPONIS ------SMALLMOUTH BASS 4 4 1 1------2 1 1 LARGEMOUTH BASS - - I WHITE CRAPPIE I - 1 2 1-- BLACK CRAPPIE - 2- I - RAINBOW DARTER .. . . - JOHNNY DARTER " " BANDED DARTER ... . . YELLOW PERCH " " LOSPERCH .. . . BLACKSIDE DARTER .... . SLENDERHEAD DARTER .. . .. FRESHWATER DRUM ...... TOTAL FISH 55 23 16 23 11 13 22 il 11 13 5 17 15 9 12 4 7 12

F-7 1908-89 DRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 17JUL IBJUL I9JUL 31JUL OIAUG 02AU6 07AUG OBAUG 09AUG 14AUVISAUG I6AUG ITAUG 22AU6 23AUS 2BAU6 29AU6 30AUG ------LONSNOSE GAR - - - GIZZARD SHAD "I 2 GRASS PICKEREL I - - - NORTHERN PIKE - - GOLDFISH .... COMMON CARP - - I -- HORNYHEAD CHUB 1 - 1 - - I GOLDEN SHINER I- - PALLID SHINER ... .. EMERALD SHINER I - - BHOST SHINER - I- - - STRIPED SHINER 4 RED SHINER - .... ROSYFACE SHINER - I I I - - SPOTFIN SHINER 1 1 - I I - - SAND SHINER 1 REDFIN SHINER .... MIMIC SHINER I 1 2 1 1 2 1 SPOTFIW I RED SHINER - - - - SUCKERIOUTH MINNOW - - - BLUNTNOSE MINNOW - - - FATHEAD MINNOW 2 - BULLHEAD MINNOW I - 9UILLBAC- UNID CARPIODES I - - WHITE SUCKER NORTHERN HOG SUCKER ...... SMALLMOUTH BUFFALO - - SPOTTED SUCKER ... . . SILVER REDHORSE - - RIVER REDHORSE ...... BLACK REDHORSE - - GOLDEN REDHORSE I I -- I- - SHORTHEAD REDHORSE - I - UNID PIDOSTO..MA-. BLACK BULLHEAD 2 - - YELLOW BULLHEAD - .- BROWN BULLHEAD ...... CHANNEL CATFISH " - - I I . . .. . STONECAT 1 2 2 3 5 1 3 3 4 - - I - I TADPOLE NADTOM ------PIRATE PERCH ...... BLACKSTRIPE TOPHINNOU ...... BROOK SILVERSIDE ...... YELLOW BASS ...... ROCK BASS - 8 5 - I - I I I - 3 - - -- I GREEN SUNFISH - I I -.- I - - - ORANGESPOTTED SUNFISH 1 4 - I I I - BLUEGILL 1 2 . .. . 1 - LONGEAR SUNFISH - 69 5 - 1 I 1I- - HYBRID SUNFISH - - - I. . UNIV LEPOMIS - - - SMALLHOUTH BASS 4 I 1 - I - -1 LARGEMOUTH BASS ... . WHITE CRAPPIE - . . .. BLACK CRAPPIE -- - - RAINBOW DARTER - . .. . . JOHNNY DARTER -- - - BANDED DARTER ...... YELLOW PERCH . .. . . LOSPERCH - I ...... BLACKSIDE DARTER ...... SLENDERHEAD DARTER ...... FRESHWATER DRUM - - --.. . . .

TOTAL FISH 9 99 21 3 2 3 14 It 6 8 4 14 2 6 7 0 5 3

F-8 1986-59 DRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 04SEP 25SEP 26SEP 27SEP 02OCT 03OCT 040ET

LONENOSE BAR ------GIZZARD SHAD 6 - - 4 2 I 2 GRASS PICKEREL - - NORTHERN PIKE - - GOLDFISH - - COMMON CARP I - NORNYHEAD CHUB - - GOLDEN SHINER - I PALLID SHINER - - EMERALD SHINER - - GHOST SHINER - - STRIPED SHINER RED SHINER - ROSYFACE SHINER - - SPOTFIN SHINER - - SAND SHINER - - REDFIN SHINER - - MIMIC SHINER - SPOTFIN X RED SHINER - - SUCKERNOUTH MINNOW I - BLUNTNOSE MINNOW FATHEAD MINNOW GUILLBACKBULLHEAD MINNOW UNID CAPPIODES WHITE SUCKER NORTHERN HOG SUCKER SMALLMOUTH BUFFALO SPOTTED SUCKER SILVER REDHORSE RIVER REDHORSE BLACK REDHORSE GOLDEN REDHORSE SHORTHEAD REDHORSE UNID MOXOSTOMA BLACK BULLHEAD YELLOW BULLHEAD BROWN BULLHEAD CHANNEL CATFISH STONECAT 2 - TADPOLE MADTOM - PIRATE PERCH - BLACKSTRIPE TOPHINNOW - - BROOK SILVERSIDE - YELLOW BASS -- I ROCK BASS - GREEN SUNFISH -- - - ORANGESPOTTED SUNFISH -- - - BLUEGILL - 5 - I - - - LONGEAR SUNFISH 1 4 2 1 2 I - HYBRID SUNFISH ------UNID LEPOMIS - - - SMALLHOUTH BASS - - - - - LARGEMOUTH BASS - I - - WHITE CRAPPIE - 2 - - - BLACK CRAPPIE -- . - RAINBOW DARTER . -. .- JOHNNY DARTER - - - BANDED DARTER .-. . YELLOW PERCH - - - LOGPERCH - - BLACKSIDE DARTER SLENDERHEAD DARTER FRESHWATER DRUM - - TOTAL FISH 11 9 2 II 5 2 4

F-9 APPENDIX G

IMPINGEMENT -- RAW FISHERIES DATA, 1988-1989

G-1 1988-89 BRAIDIWOOD STATION IMPINGEMENT STUDY ------li------l----- ...... ------lll- l ..... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEI6HT ------. ------. ------...... ----- . _

DATE: iIOCTr8 GIZZARD SHAD 94 7 GIZZARD SHAD 93 8 GIZZARD SHAD 177 57 6IZZARD SHAD 98 9 GIZZARD SHAD 110 10 GIZZARD SHAD 94 7 GIZZARD SHAD 97 8 GIZZARD SHAD 100 9 GIZZARD SHAD 103 10 GIZZARD SHAD 119 12 GIZZARD SHAD 89 5 GIZZARD SHAD 99 8 GIZZARD SHAD 94 7 GIZZARD SHAD 103 8 GIZZARD SHAD 93 7 GIZZARD SHAD 77 3 GIZZARD SHAD 95 7 GIZZARD SHAD 88 6 GIZZARD SHAD 74 3 6IZZARD SHAD 71 3 GIZZARD SHAD 9 8 GIZZARD SHAD 10W B GIZZARD SHAD 82 6 GIZZARD SHAD 77 3 GIZZARD SHAD 95 7 GIZZARD SHAD 92 6 GIZZARD SHAD 77 3 GIZZARD SHAD 78 4 GIZZARD SHAD 91 7 GIZZARD SHAD 71 3 GIZZARD SHAD 475 4100 LONGEAR SUNFISH 78 9 LON6EAR SUNFISH 87 12 LONGEAR SUNFISH 77 8 SMALLHOUTH BASS 115 25 SNALLNOUTH BASS 67 4 DATE: 120CTOB 6ZZARD SHAD 94 1200 GIZZARD SHAD 83 5 GIZZARD SHAD 82 5 GIZZARD SHAD 98 5 GIZZARD SHAD 79 4 GIZZARD SHAD 88 6 GIZZARD SHAD 104 9 6ZZARD SHAD 103 10 GIZZARD SHAD 80 5 6IZZARD SHAD 114 12 GIZZARD SHAD 105 9 GIZZARD SHAD 75 4 GIZZARD SHAD 78 4 6IZZARD SHAD 102 10 GIZZARD SHAD 97 9 GIZZARD SHAD 92 6 GIZZARD SHAD 100 9 GIZZARD SHAD 95 8 GIZZARD SHAD 67 3 GIZZARD SHAD 103 9 GIZZARD SHAD 82 5 GIZZARD SHAD 68 2 GIZZARD SHAD 60 5 61ZZARD SHAD 76 4 61ZZARD SHAD 72 3 GIZZARD SHAD 97 a GIZZARD SHAD 73 3 GIZZARD SHAD 74 3 GIZZARD SHAD 102 10

G-2 1988-89 BRAIDWOOD STATION IMPINGENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 73 3 ROCK BASS 75 9 DATE: 170CT86 GIZZARD SHAD 4 GIZZARD SHAD i 10 GIZZARD SHAD 99 6 GIZZARD SHAD 101 8 GIZZARD SHAD 103 9 GIZZARD SHAD 9I 5 GIZZARD SHAD 93 5 GIZZARD SHAD 92 6 GIZZARD SHAD 82 5 GIZZARD SHAD 114 1i GIZZARD SHAD 109 9 GIZZARD SHAD 113 12 GIZZARD SHAD 112 9 GIZZARD SHAD 97 8 GIZZARD SHAD 67 5 GIZZARD SHAD 79 4 GIZZARD SHAD 98 9 GIZZARD SHAD 93 7 GIZZARD SHAD 79 3 GIZZARD SHAD 89 5 GIZZARD SHAD 99 6 GIZZARD SHAD 78 3 GIZZARD SHAD 87 4 GIZZARD SHAD 103 6 GIZZARD SHAD 131 19 GIZZARD SHAD O05 8 GIZZARD SHAD 95 8 GIZZARD SHAD 77 4 GIZZARD SHAD 123 12 GIZZARD SHAD 112 10 GIZZARD SHAD 5 13 GIZZARD SHAD 10; SNALLOUTH BASS 375 58. DATE: 18OCT88 GIZZARD SHAD 112 12 GIZZARD SHAD 98 7 GIZZARD SHAD 110 11 GIZZARD SHAD 98 7 GIZZARD SHAD 107 7 611ARD SHAD 106 9 GIZZARD SHAD 105 8 GIZZARD SHAD 104 10 GIZZARD SHAD 109 9 GIZZARD SHAD ItI 10 GIZZARD SHAD 77 3 GIZZARD SHAD 95 6 GIZZARD SHAD 98 7 GIZZARD SHAD 78 3 GIZZARD SHAD 104 9 GIZZARD SHAD 82 4 GIZZARD SHAD 114 12 GIZZARD SHAD 74 3 GIZZARD SHAD 105 7 GIZZARD SHAD 110 9 GIZZARD SHAD 98 8 GIZZARD SHAD 93 7 GIZZARD SHAD 93 6 GIZZARD SHAD 74 4 GIZZARD SHAD 104 8 GIZZARD SHAD 110 9 GIZZARD SHAD 95 6 GIZZARD SHAD Ito 10 GIZZARD SHAD 99 8 GIZZARD SHAD 95 7

G-3 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT - SHINER-OT- - - -8------SPOTFIN SHINERSHINER 6258 1 ROCK BASS 62 4 BLUEGILL 42 1 BLUEGILL 86 8 LONGEAR SUNFISH 85 13 SMALLHOUTH BASS to0 13 SMALLNOUTH BASS 72 5 SIALLOUTH BASS 86 8 DATE: 19OCTB8

GIZZARD SHAD 54 400 GIZZARD SHAD |16 12 GIZZARD SHAD 117 15 GIZZARD SHAD 142 20 GIZZARD SHAD 136 25 GIZZARD SHAD 132 22 6IZZARD SHAD 79 4 GIZZARD SHAD 86 5 6IZZARD SHAD 73 3 GIZZARD SHAD 109 12 GIZZARD SHAD 131 16 GIZZARD SHAD 96 8 GIZZARD SHAD 77 4 GIZZARD SHAD 69 3 GIZZARD SHAD 208 95 GIZZARD SHAD 56 1 GIZZARD SHAD 100 9 GIZZARD SHAD 140 26 GIZZARD SHAD 145 30 GIZZARD SHAD 103 to GIZZARD SHAD 69 3 GIZZARD SHAD 62 2 GIZZARD SHAD 92 6 GIZZARD SHAD 113 12 GIZZARD SHAD 115 13 GIZZARD SHAD 86 5 GIZZARD SHAD 87 6 GIZZARD SHAD 91 7 GIZZARD SHAD 8e 6 GIZZARD SHAD 61 2 GIZZARD SHAD 60 2 GIZZARD SHAD 62 2 SPOTFIN SHINER 58 1 BLUEGILL 47 2 SMALLMOUTH BASS 129 18 DATE: 240CT88 GIZZARD SHAD 37 320 6IZZARD SHAD 257 17.0 6IZZARD SHAD 122 15 GIZZARD SHAD 138 23 GIZZARD SHAD 109 12 GIZZARD SHAD 132 21 GIZZARD SHAD 113 14 GIZZARD SHAD 99 8 GIZZARD SHAD 100 9 6IZZARD SHAD 94 7 GIZZARD SHAD ItS 22 GIZZARD SHAD 120 17 GIZZARD SHAD 103 9 GIZZARD SHAD 97 9 GIZZARD SHAD 130 14 6IZZARD SHAD 104 10 GIZZARD SHAD 100 B 6IZZARD SHAD 101 9 GIZZARD SHAD 106 12 6IZZARD SHAD 107 10 6IZZARD SHAD 79 3

G-4 1988-89 BRAIDROOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH NEIGHT COUNT WEI6HT GIZZARD SHAD 101 5 GIZZARD SHAD 77 4 GIZZARD SHAD 69 3 61ZZARD SHAD 54 1 6IZZARD SHAD 62 2 GIZZARD SHAD 83 5 GIZZARD SHAD 95 9 GIZZARD SHAD 93 6 GIZZARD SHAD 75 4 COMMON CARP 201 160 EMERALD SHINER B8 4 ROCK BASS 71 6 ROCK BASS 101 20 ROCK BASS 82 11 ROCK BASS 76 9 ROCK BASS 80 It ROCK BASS 71 8 ROCK BASS 55 2 ROCK BASS 62 4 NOCK BASS 67 7 BLUEGILL 72 7 BLUEGILL 41 1 BLUEGILL 52 1 LONGEAR SUNFISH 102 27 LONGEAR SUNFISH 102 25 LON6EAR SUNFISH 90 I1 LONGEAR SUNFISH 98 26 SMALLMOUTH BASS 103 15 SMALLMOUTH BASS 101 12 SMALLHOUTH BASS 91 Ii SMALLMOUTH BASS 68 4 SMALLMOUTH BASS 81 7 SMALLMOUTH BASS 79 6 SMALLOUTH BASS 72 2 BLACK CRAPPIE 105 15 DATE: 25DCT88 GIZZARD SHAD 1500 GIZZARD SHAD 6i GIZZARD SHAD 92 GIZZARD SHAD 130 GIZZARD SHAD 103 GIZZARD SHAD 124 GIZZARD SHAD 104 GIZZARD SHAD 81 GIZZARD SHAD 85 GIZZARD SHAD 105 6IZZARD SHAD 91 GIZZARD SHAD 67 GIZZARD SHAD 103 GIZZARD SHAD 128 GIZZARD SHAD 103 GIZZARD SHAD 106 GIZZARD SHAD 107 GIZZARD SHAD 103 GIZZARD SHAD 114 GIZZARD SHAD 99 GIZZARD SHAD 75 GIZZARD SHAD 69 GIZZARD SHAD 93 GIZZARD SHAD 71 GIZZARD SHAD 106 GIZZARD SHAD 109 GIZZARD SHAD 69 GIZZARD SHAD 70 6IZZARD SHAD f6 GIZZARD SHAD 94 GIZZARD SHAD 61 ROCK BASS 106 ROCK BASS 73

G-5 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LEN6TH WEIGHT COUNT WEI6HT ------.------..----- ..------. ....------...... --..... ROCK BASS 72 7 BLUEGILL 75 a BLUEGILL 54 3 LON6EAR SUNFISH 108 34 SRALLHOUTH BASS 87 9 SMALLMOUTH BASS 92 10 SMALLMOUTH BASS 102 12 SNALLMOUTH BASS 90 9 SMALLMOUTH BASS 65 4 SMALLMOUTH BASS 74 5 LAR6EMOUTH BASS 170 75 LAR6EMOUTH BASS 150 50 LARIGENOUTH BASS 138 32 DATE: 26OCT8B GIZZARD SHAD 1100 GIZZARD SHAD 130 22 GIZZARD SHAD 12 GIZZARD SHAD 157 40 GIZZARD SHAD 110 It GIZZARD SHAD 120 16 GIZZARD SHAD 106 9 GIZZARD SHAD 103 8 GIZZARD SHAD 0oo 8 GIZZARD SHAD 121 17 GIZZARD SHAD 98 7 6IZZARD SHAD 125 20 GIZZARD SHAD 112 12 6IZZARD SHAD 117 12 GIZZARD SHAD 108 11 GIZZARD SHAD 94 8 GIZZARD SHAD 97 8 GIZZARD SHAD 120 18 GIZZARD SHAD 126 17 6IZZARD SHAD 117 15 GIZZARD SHAD 103 10 GIZZARD SHAD 104 10 GIZZARD SHAD 73 3 GIZZARD SHAD 97 8 6ZZARD SHAD 119 18 GIZZARD SHAD 110 II GIZZARD SHAD 81 5 GIZZARD SHAD 115 14 GIZZARD SHAD 86 6 GIZZARD SHAD 60 4 GIZZARD SHAD 67 6 EMERALD SHINER 74 EMERALD SHINER 51 UHITE SUCKER 221 140 ROCK BASS 110 25 ROCK BASS 66 6 LONSEAR SUNFISH 77 9 LONGEAR SUNFISH 83 12 SMALLMOUTH BASS 107 17 SMALLMOUTH BASS 97 10 SMALLMOUTH BASS 79 6 LARGEMOUTH BASS 134 35 LARSEMOUTH BASS 183 110 LAR6EMOUTH BASS 149 44 LAGEMOUTH BASS 128 26 LARGEMOUTH BASS 134 36 FRESHWATER DRUM 227 150 DATE: 31OCT88 6IZARD SHAD l18 55 6IZZARD SHAD 122 15 GIZZARD SHAD 120 15 GIZZARD SHAD 132 20 6ZZARD SHAD 124 17

G-6 1988-99 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT NEIGHT GIZZAR S..AD. ill--5------GIZZARD SHAD 117 15 GIZZARD SHAD 129 19 GIZZARD SHAD 137 22 GIZZARD SHAD 123 16 GIZZARD SHAD 91 6 GIZZARD SHAD 110 14 GIZZARD SHAD 117 16 GIZZARD SHAD 100 8 GIZZARD SHAD 110 7 GIZZARD SHAD 122 14 GIZZARD SHAD 118 13 GIZZARD SHAD 121 16 GIZZARD SHAD 105 10 GIZZARD SHAD 107 11 GIZZARD SHAD 119 16 GOLDEN SHINER 91 5 FATHEAD MINNOW 79 FATHEAD MINNOW V3 ROCK BASS 86 10 ROCK BASS 66 5 ROCK BASS 60 4 ROCK BASS 72 8 ROCK BASS 74 9 ROCK BASS 79 9 ROCK BASS 75 8 ROCK BASS 64 5 ROCK BASS 93 15 ROCK BASS 67 5 ROCK BASS 70 6 ROCK BASS 102 19 ROCK BASS 71 6 ROCK BASS 6B 6 ROCK BASS 79 9 ROCK BASS 68 5 ROCK BASS 68 6 ROCK BASS 62 4 ROCK BASS 62 5 ROCK BASS 79 10 ROCK BASS 71 6 ROCK BASS 61 4 ROCK BASS 63 5 ROCK BASS 65 6 ROCK BASS 66 4 ROCK BASS 60 4 GREEN SUNFISH 105 22 BLUEGILL 77 9 LONGEAR SUNFISH 104 27 LONGEAR SUNFISH 103 27 LONGEAR SUNFISH 95 21 LONGEAR SUNFISH 95 12 SMALLMOUTH BASS 78 5 LARGEMOUTH BASS 126 26 BLACK CRAPPIE 128 28 DATE: OINOV8 6IZZARD SHAD 102 9 GIZZARD SHAD 107 10 GIZZARD SHAD 122 15 GIZZARD SHAD 110 9 GIZZARD SHAD 105 9 GIZZARD SHAD 9£ 6 GIZZARD SHAD 106 10 GIZZARD SHAD 122 15 GIZZARD SHAD 115 13 GIZZARD SHAD 113 12 GIZZARD SHAD I10 10 6IZZARD SHAD 76 3 GIZZARD SHAD £9 2 6IZZARD SHAD 59 1 GIZZARD SHAD 110 12

G-7 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 127 17 6ZZARD SHAD 145 24 GIZZARD SHAD 135 20 GIZZARD SHAD 104 10 GIZZARD SHAD 140 23 GIZZARD SHAD 149 25 GIZZARD SHAD 130 20 GIZZARD SHAD 124 17 GIZZARD SHAD 112 12 GIZZARD SHAD 110 12 GIZZARD SHAD III 12 GIZZARD SHAD 96 7 GIZZARD SHAD 60 3 GIZZARD SHAD 60 3 GIZZARD SHAD 60 3 COMMON CARP IBO 105 ROSYFACE SHINER 58 1 BROOK SILVERSIDE 75 1 ROCK BASS 72 6 ROCK BASS 67 6 ROCK BASS 82 10 ROCk BASS 74 7 ROCK BASS 87 13 ROCK BASS 60 3 ROCK BASS 75 7 ROCK BASS 75 6 LONGEAR SUNFISH 114 23 LONSEAR SUNFISH 132 55 LONGEAR SUNFISH 117 31 SMALLMOUTH BASS 91 10 SALLMOUTH BASS 91 9 DATE: 02NOVBB GIZZARD SHAD 10 125 GIZZARD SHAD 107 GIZZARD SHAD 100 GIZZARD SHAD 65 GIZZARD SHAD 107 GIZZARD SHAD 76 GIZZARD SHAD 135 GIZZARD SHAD 118 GIZZARD SHAD 107 GIZZARD SHAD 107 GIZZARD SHAD 123 GIZZARD SHAD 135 GIZZARD SHAD .60 GIZZARD SHAD 73 6IZZARD SHAD 57 GIZZARD SHAD 65 GIZZARD SHAD 82 GIZZARD SHAD 106 61ZZARD SHAD 105 GIZZARD SHAD 108 6IZZARD SHAD 66 GIZZARD SHAD 57 6IZZARD SHAD 58 GIZZARD SHAD 65 GIZZARD SHAD 60 GIZZARD SHAD 62 GIZZARD SHAD fi GIZZARD SHAD 65 GIZZARD SHAD 50 GIZZARD SHAD 6t GIZZARD SHAD 53 GIZZARD SHAD 62 MIMIC SHINER 57 FATHEAD MINNOW 63 ROCK BASS 305 HOCK BASS 94 ROCK BASS 62

G-8 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT HEIGHT ------..- - .. -- .. - ..------...... ------... . ------....

DATE: 07NOV88 61ZZARD SHAD 23 270 GIZZARD SHAD 1i1 63 GIZZARD SHAD 122 15 GIZZARD SHAD 125 16 GIZZARD SHAD 131 22 6ZZARD SHAD 123 15 GIZZARD SHAD 120 14 GIZZARD SHAD 135 24 GIZZARD SHAD 126 16 GIZZARD SHAD 115 14 GIZZARD SHAD 125 16 GIZZARD SHAD 112 12 GIZZARD SHAD 142 25 GIZZARD SHAD 117 13 GIZZARD SHAD 109 10 6IZZARD SHAD 139 20 GIZZARD SHAD 129 17 GIZZARD SHAD 120 14 GIZZARD SHAD 112 12 GIZZARD SHAD Io t0 GIZZARD SHAD 115 14 GIZZARD SHAD 131 18 GIZZARD SHAD 136 24 GIZZARD SHAD 109 I! GIZZARD SHAD 105 9 GIZZARD SHAD 122 15 GIZZARD SHAD 270 150 GIZZARD SHAD 205 70 GIZZARD SHAD 107 10 GIZZARD SHAD 107 12 GOLDEN SHINER 93 7 ROSYFACE SHINER 65 1 BULLHEAD MINNOW 75 BULLHEAD MINNOW 73 ROCK BASS 175 90 ROCK BASS 71 7 ROCK BASS 68 5 ROCK BASS 65 5 ROCK BASS 71 7 ROCK BASS 61 3 ROCK BASS 77 a ROCK BASS 67 5 ROCK BASS 67 4 ROCK BASS 61 3 ROCK BASS 64 5 ROCK BASS 55 2 ROCK BASS 70 5 GREEN SUNFISH 109 22 GREEN SUNFISH 115 34 BLUEGILL 153 100 BLUEGILL 76 7 BLUEGILL 91 9 BLUEGILL 62 2 BLUEGILL 51 1 LONSEAR SUNFISH 96 19 LONGEAR SUNFISH 100 20 LARGEMOUTH BASS 90 9 LARGEMOUTH BASS 153 55 DATE: ONOVB8 GIZZARD SHAD 134 23 GIZZARD SHAD 144 29 GIZZARD SHAD 146 29 GIZZARD SHAD 157 34 GIZZARD SHAD 105 9 GIZZARD SHAD 125 16 GIZZARD SHAD 127 17

G-9 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT MEIGHT -. . .------.. .. . ------.... . ------..... GIZZARD SHAD 113 12 GIZZARD SHAD 74 2 61ZZARD SHAD 70 2 6IZZARD SHAD 53 1 GIZZARD SHAD 66 2 GIZZARD SHAD 129 16 6IZZARD SHAD 114 13 GIZZARD SHAD 63 1 COMMON CARP 549 1910 ROCK BASS 75 6 ROCK BASS 77 7 ROCK BASS 80 8 ROCK BASS 100 20 GREEN SUNFISH 112 27 LARGEMOUTH BASS 146 46 DATE: 09NOVBB GIZZARD SHAD 145 22 6IZZARD SHAD 141 22 GIZZARD SHAD 130 20 GIZZARD SHAD 142 25 GIZZARD SHAD 136 23 GIZZARD SHAD 146 25 6IZZARD SHAD 105 10 GIZZARD SHAD 151 29 GIZZARD SHAD J84 65 6IZZARD SHAD 204 85 GIZZARD SHAD 156 34 GIZZARD SHAD 125 17 GIZZARD SHAD 113 It GIZZARD SHAD 146 27 GIZZARD SHAD 120 15 GIZZARD SHAD 142 24 6IZZARD SHAD 137 22 GIZZARD SHAD 126 19 GIZZARD SHAD 121 15 GIZZARD SHAD 110 11 GIZZARD SHAD 110 1l 6[ZZARD SHAD 128 20 GIZZARD SHAD 113 13 6IZZARD SHAD 129 20 GIZZARD SHAD 101 7 GIZZARD SHAD 127 17 GIZZARD SHAD 121 16 GIZZARD SHAD 141 24 GIZZARD SHAD 112 10 GIZZARD SHAD 108 10 GIZZARD SHAD 54 GOLDEN SHINER 211 Ii ROCK BASS 107 24 ROCK BASS 71 6 ROCK BASS 71 7 ROCK BASS 77 • ROCK BASS 61 10 BLUEGILL 165 90 LONGEAR SUNFISH 94 17 LONGEAR SUNFISH 226 47 LARGEMOUTH BASS 150 40 DATE: IINOV68 6IZZARD SHAD 190 50 6IZZARD SHAD 146 29 6IZZARD SHAD 129 20 GIZZARD SHAD 161 37 6ZZARD SHAD 116 14 6IZZARD SHAD I11 12 6IZZARD SHAD 93 a 6IZZARD SHAD 106 9 GIZZARD SHAD 121 17 1988-09 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT HEIHT GIZZARD SHAD 85 4 GIZZARD SHAD 90 5 GIZZARD SHAD 56 1 GIZZARD SHAD 52 1 GIZZARD SHAD 49 I GIZZARD SHAD 61 1 GIZZARD SHAD 56 1 GIZZARD SHAD 51 1 GIZZARD SHAD 69 2 GIZZARD SHAD 69 2 GIZZARD SHAD 77 2 GIZZARD SHAD 70 2 GOLDEN SHINER 108 12 ROSYFACE SHINER 52 1 YELLOW BULLHEAD 81 6 STONECAT 142 17 ROCK BASS 178 110 ROCK BASS 172 100 ROCK BASS 63 5 ROCK BASS 78 9 ROCK BASS 82 9 ROCK BASS 72 7 ROCK BASS 74 9 ROCK BASS 66 5 ROCK BASS 79 9 ROCK BAS5 85 11 ROCK BASS 65 4 ROCK BASS 63 3 ROCK BASS 66 5 BLUEGILL 70 6 LONGEAR SUNFISH 36 I LONGEAR SUNFISH 45 1 LONGEAR SUNFISH 44 1 LONGEAR SUNFISH 46 1 LONGEAR SUNFISH 51 1 SNALLMOUTH BASS 71 4 SMALLOUTH BASS 105 17 SNALLMOUTH BASS 83 7 SNALLMOUTH BASS 70 5 SMALLOUTH BASS 76 7 SHALLMOUTH BASS 57 3 LARGEMOUTH BASS 152 49 DATE: 15NOV88 GIZZARD SHAD 103 7 6IZZARD SHAD 128 20 GIZZARD SHAD 122 17 $ GIZZARD SHAD 103 9 GIZZARD SHAD 102 7 6ZZARD SHAD 92 5 GIZZARD SHAD 96 6 GIZZARD SHAD 125 16 m ROSYFACE SHINER 56 1 YELLOW BULLHEAD 112 18 li STONECAT 151 32 II ROCK BASS 71 7 ROCK BASS 71 5 ROCK BASS 79 9 ROCK BASS 54 2 ROCK BASS 58 2 GREEN SUNFISH 49 1 ORANGESPOTTED SUNFISH 102 19 LONDEAR SUNFISH 78 LONGEAR SUNFISH 41 LONGEAR SUNFISH 49 SALLMOUTH BASS 58 2 LARGENOUTH BASS 142 35 DATE: 16NOV88

G-11 19BB-99 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 150 30 GIZZARD SHAD 136 25 GIZZARD SHAD 175 55 GIZZARD SHAD 140 26 GIZZARD SHAD 174 45 GIZZARD SHAD 131 22 GIZZARD SHAD 137 24 GIZZARD SHAD 117 16 GIZZARD SHAD 121 16 GIZZARD SHAD 126 16 GIZZARD SHAD 112 13 GIZZARD SHAD 111 12 GIZZARD SHAD 117 15 GIZZARD SHAD 125 18 GIZZARD SHAD 112 13 GIZZARD SHAD 109 12 GIZZARD SHAD 172 45 GIZZARD SHAD 132 20 GIZZARD SHAD 116 14 GIZZARD SHAD 123 17 GIZZARD SHAD 144 27 GIZZARD SHAD 113 13 GIZZARD SHAD 131 21 GIZZARD SHAD 210 11 GIZZARD SHAD 106 1I GIZZARD SHAD 103 10 GIZZARD SHAD 77 4 GIZZARD SHAD BO 5 GIZZARD SHAD 96 7 GIZZARD SHAD 61 2 COMMON CARP 131 35 STRIPED SHINER 75 STRIPED SHINER 70 STRIPED SHINER 77 12 ROSYFACE SHINER 49 ROSYFACE SHINER 55 MIMIC SHINER 56 MIMIC SHINER 51 MIMIC SHINER 51 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 86 BLUNTNDSE HINNON 82 SHORTHEAD REDHORSE 101 12 STONECAT 98 9 STONECAT 158 42 STONECAT 136 21 STONECAT 123 16 BROOK SILVERSIDE 77 2 ROCK BASS 85 12 ROCK BASS 75 9 ROCK BASS 78 10 ROCK BASS 68 6 ROCK BASS 78 9 ROCK BASS 70 7 ROCK BASS 70 6 ROCK BASS 61 5 ROCK BASS 72 8 ROCK BASS 52 3 ROCK BASS 56 4 ROCK BASS 57 4 BREEN SUNFISH 97 19 GREEN SUNFISH 140 60 GREEN SUNFISH 46 1 ORANGESPOTTED SUNFISH 70 6 BLUEGILL 131 50 BLUEGILL 163 t00 BLUEGILL 151 85 BLUEGILL I1o 31 BLUE6ILL 58 3 BLUEGILL 51 2 BLUEGILL 52 2

r--I ) 1968-89 BRAIDWOOD STATION INPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT BLUEGILL 50 2 BLUEGILL 51 2 BLUEGILL 43 1 BLUEGILL 52 2 BLUEGILL 37 1 BLUEGILL 49 2 BLUEGILL 47 2 BLUEGILL 43 I BLUEGILL 48 2 BLUEGILL 4C I BLUE6ILL 48 2 BLUEGILL 45 1 BLUEGILL 34 1 LONGLAR SUNFISH 82 12 LONGEAR SUNFISH 58 4 LONGEAR SUNFISH 52 3 LONGEAR SUNFISH 52 3 LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 42 1 LONSEAR SUNFISH 43 I LONGEAR SUNFISH 35 1 LONGEAR SUNFISH 45 1 LONGEAR SUNFISH 37 1 SNALLOUTH BASS 98 12 SNALLMOUTH BASS 90 9 SMALLRDUTH BASS 64 4 SMALLNOUTH BASS 75 3 SMALLMOUTH BASS 62 3 LARGEMOUTH BASS 155 55 LARGEMOUTH BASS 13B 34 LOGPERCH 95 9 DATE: 21NOV88 GIZZARD SHAD 203 49001 GIZZARD SHAD 13i GIZZARD SHAD 115 GIZZARD SHAD 125 GIZZARD SHAD 117 GIZZARD SHAD 102 GIZZARD SHAD 128 GIZZARD SHAD 105 GIZZARD SHAD 117 GIZZARD SHAD III GIZZARD SHAD 110 6IZZARD SHAD 131 GIZZARD SHAD 112 GIZZARD SHAD 113 GIZZARD SHAD 101 GIZZARD SHAD 91 GIZZARD SHAD 118 GIZZARD SHAD 107 GIZZARD SHAD 122 GIZZARD SHAD 135 GIZZARD SHAD 122 GIZZARD SHAD 112 GIZZARD SHAD 127 GIZZARD SHAD 125 GIZZARD SHAD 113 GIZZARD SHAD 123 GIZZARD SHAD B4 GIZZARD SHAD 96 GIZZARD SHAD 71 GIZZARD SHAD 53 GIZZARD SHAD 49 GIZZARD SHAD 48 GOLDEN SHINER 152 GOLDEN SHINER 168 GOLDEN SHINER 160 STRIPED SHINER 76 ROSYFACE SHINER 57

G-13 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT ROSYFACE SHINER 55 ROSYFACE SHINER 55 ROSYFACE SHINER 60 MIeIC SHINER 52 MIMIC SHINER 50- BULLHEAD MINNOW 66 BULLHEAD MINNOW 54 SPOTTED SUCKER 97 10 BROWN BULLHEAD 161 50 STONECAT 143 25 BROOK SILVERSIDE 75 1 ROCK BASS 82 11 ROCK BASS 75 10 ROCK BASS 72 8 ROCK BASS 79 II ROC. BASS 8B 13 ROCK BASS 74 II ROCK BASS 71 7 ROCK BASS 57 4 ROCK BASS 72 8 ROCK BASS 80 10 ROCK BASS 72 8 ROCK BASS 61 5 ROCr BASS 60 5 ROCK BASS 67 7 ROCK BASS 71 7 ROCK BASS 65 6 ROCK BASS 67 6 ROCK BASS 80 10 ROCk BASS 75 G ROCK BASS 73 9 ROCK BASS 77 9 ROCK BASS 58 4 ROCK BASS 61 5 ROCK BASS 65 6 ROCK BASS 51 3 ROCK BASS 60 5 ROCK BASS 61 5 ROCK BASS 46 1 GREEN SUNFISH 86 14 GREEN SUNFISH 132 50 GREEN SUNFISH 134 55 GREEN SUNFISH 108 27 GREEN SUNFISH 103 24 BLUEGILL 180 120 BLUEGILL 13B 55 BLUEGILL 158 80 BLUEGILL 131 50 BLUEGILL 78 7 BLUEGILL 44 I BLUEGILL 43 I LONGEAR SUNFISH 104 30 LONGEAR SUNFISH 61 5 LONGEAR SUNFISH 91 a LONGEAR SUNFISH 9l 9 LONGEAR SUNFISH 74 10 UNID LEPOMIS 39 1 UNID LEPOMIS 42 1 UNID LEPOMIS 43 1 UNID LEPOMIS 52 3 UNID LEPOMIS 41 1 UNID LEPOMIS 35 1 UNID LEPOMIS 38 I SMALLMOUTH BASS 75 3 SMALLMOUTH BASS 79 5 LAR6EMOUTH BASS 153 60 LARGEMOUTH BASS 215 155 LAR6EMOUTH BASS 136 37 WHITE CRAPPIE 40 1 FRESHWATER DRUM 211 120

G-14 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEI6HT COUNT WEIGHT ------.------.------...... ------

6IZZARD SHAD 274 3200 6IZZARD SHAD Ili 12 GIZZARD SHAD 121 18 6ZZARD SHAD 127 21 61IZARD SHAD 107 II GIZZARD SHAD 150 31 GIZZARD SHAD 64 3 6IZZARD SHAD 65 3 GIZZARD SHAD 61 3 GIZZARD SHAD 113 13 GIZZARD SHAD 112 13 GIZZARD SHAD 131 23 GIZZARD SHAD I11 13 GIZZARD SHAD 120 18 GIZZARD SHAD 116 15 6IZZARD SHAD 130 19 6IZZARD SHAD 69 4 GIZZARD SHAD 128 21 GIZZARD SHAD 116 14 6IZZARD SHAD 126 18 GIZZARD SHAD 120 17 GIZZARD SHAD 102 12 GIZZARD SHAD 113 14 GIZZARD SHAD 116 14 GIZZARD SHAD 129 15 GIZZARD SHAD 93 B GIZZARD SHAD 66 3 GIZZARD SHAD 66 3 GIZZARD SHAD 66 3 GIZZARD SHAD 56 2 61ZZARD SHAD 57 2 GIZZARD SHAD 115 13 ROSYFACE SHINER 52 ROSYFACE SHINER 56 ROSYFACE SHINER 53 ROSYFACE SHINER 54 ROSYFACE SHINER 56 MIMIC SHINER 51 MIMIC SHINER 44 MIMIC SHINER 52 MIMIC SHINER 54 MIMIC SHINER 61 MIMIC SHINER 50 MIMIC SHINER 46 MIMIC SHINER 49 BULLHEAD MINNOW 3 GOLDEN REDHORSE 70 4 YELLOW BULLHEAD 96 12 STONECAT 180 60 ROCK BASS 73 10 ROCK BASS 68 7 ROCK BASS 107 27 ROCK BASS 109 26 ROCK BASS 133 40 ROCK BASS 114 35 HOCK BASS 78 It ROCK BASS 80 12 ROCK BASS 62 5 ROCK BASS 67 7 ROCK BASS 63 5 ROCK BASS 104 26 ROCK BASS so I1 ROCK BASS 91 12 ROCK BASS 67 7 ROCK BASS 98 20 GREEN SUNFISH 124 45 BLUEGILL 25 1 BLUEGILL 157 90 LONGEAR SUNFISH 121 55

G-15 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT VEIGHT

IINID LEPOMIS 33 1 SMALINOUTH BASS 103 15 SMALLNOUTH BASS 108 19 SNALINOUTH BASS 72 5 SHALINOUTH BASS 87 10 LARGEMOUTH BASS 363 710 LARGEMOUTH BASS 123 33 YELLOW PERCH 1214 28 BLACKSIDE DARTER 63 2 BLACKSIDE DARTER 66 3 DATE: 28NOV88 GIZZARD SHAD 320 1800 GIZZARD SHAD 32(1 220 GIZZARD SHAD 356 470 GIZZARD SHAD 124 le GIZZARD SHAD 115 14 6IZZARD SHAD 372 550 GIZZARD SHAD 126 21 6IZZARD SHAD 106 12 GIZZARD SHAD 120 16 GIZZARD SHAD 147 27 l0 GIZZARD SHAD 106 II GIZZARD SHAD I1(t GIZZARD SHAD 94 7 GIZZARD SHAD 123 is 6ZZARD SHAD 103 10 GIZZARD SHAD 107 13 GIZZARD SHAD 91 6 I;O 6IZZARD SHAD 76 3 61ZZARD SHAD 69 2 GIZZARD SHAD 61 2 GIZZARD SHAD 78 4 GIZZARD SHAD 94 8 GIZZARD SHAD 113 13 6IZZARD SHAD 76 4 GIZZARD SHAD 53 2 GIZZARD SHAD 62 2 GIZZARD SHAD 57 1 GIZZARD SHAD 63 2 GIZZARD SHAD 66 3 GIZZARD SHAD 65 3 GIZZARD SHAD 133 17 GIZZARD SHAD 58 2 HORNYHEAD CHUB t00 HORNYHEAD CHUB 82 19 60LDEN SHINER 21 RED SHINER 5 BLUNTNOSE MINNOW 7 SILVER REDHORSE 12i 26 UNID NOXOSTOHA 61 YELLOW BULLHEAD 89 a YELLOW BULLHEAD 122 27 YELLOW BULLHEAD 96 13 TADPOLE NADTON 56 2 ROCK BASS 57 3 ROCK BASS 62 11 ROCK BASS 68 6 ROCK BASS to ROCK BASS 62 5 ROCK BASS 63 5 ROCK BASS 66 5 ROCK BASS 86 15 ROCK BASS 90 10 ROCK BASS 105 25 ROCK BASS 82 20 ROCK BASS 93 14 ROCK BASS 95 13 ROCK BASS 66 5

r-. i 1988-89 BRAIDWOOD STATION IMPINGENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ---ROCBASS-K --.--. --.--. ------.. -----.65.5 ...... ROCK BASS 65 5 ROCK BASS 64 5 ROCK BASS 64 5 ROCK BASS 5979 123 ROCK BASS 106 25 ROCK BASS 75 9 ROCK BASS 69 7 .ROCK BASS 73 7 ROCK BASS 103 25 ROCK BASS 82 II ROCK BASS 99 20 ROCK BASS 81 II ROCK BASS 93 14 ROCK BASS 77 9 ROCK BASS 12 70 GREEN SUNFISH 122 37 GREEN SUNFISH 116 35 BLUE6ILL 178 120 BLUEGILL 165 100 BLUEGILL 70 6 LONGEAR SUNFISH 122 40 LONGEAR SUNFISH 82 14 LONGEAR SUNFISH 76 9 LONGEAR SUNFISH 115 42 LONGEAR SUNFISH 95 21 LONGEAR SUNFISH 91 16 LOWGEAR SUNFISH 77 9 LONGEAR SUNFISH 46 1 LONGEAR SUNFISH 61 4 LONGEAR SUNFISH 58 3 UNID LEPOMIS 40 I UNID LEPOMIS 38 1 SMALLNOUTH BASS 102 14 SMALLNOUTH BASS 84 8 SMALLMOUTH BASS 78 6 SMALLMOUTH BASS 85 8 LARGENOUTH BASS 132 32 WHITE CRAPPIE 122 22 FRESHWATER DRUN 217 115 DATE: 29NOV88 GIZZARD SHAD 1100 GIZZARD SHAD 130 20 GIZZARD SHAD 110 11 GIZZARD SHAD 109 12 GIZZARD SHAD 114 14 GIZZARD SHAD 119 16 GIZZARD SHAD lie 14 GIZZARD SHAD 130 20 GIZZARD SHAD 121 17 GIZZARD SHAD 120 16 61ZZARD SHAD 120 15 6ZZARD SHAD 130 19 GIZZARD SHAD 100 7 GIZZARD SHAD 103 II GIZZARD SHAD 140 25 GIZZARD SHAD 127 21 6ZZARD SHAD 139 27 GIZZARD SHAD 145 28 GIZZARD SHAD 131 23 6IZZARD SHAD 133 20 GIZZARD SHAD 134 21 GIZZARD SHAD 129 28 GIZZARD SHAD 101 B 6IZZARD SHAD 146 27 GIZZARD SHAD 119 17 GIZZARD SHAD 116 16 GIZZARD SHAD 67 3 GIZZARD SHAD 97 6

G-17 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 73 3 GIZZARD SHAD 44 1 GOLDEN SHINER 84 5 FATHEAD MINNOW 60 1 BROOK SILVERSIDE 73 1 ROCK BASS 179 90 ROCK BASS 38 1 ROCK BASS 63 6 ROCK BASS 74 7 ROCK BASS 71 7 ROCK BASS 65 5 ROCK BASS 63 5 ROCK BASS 56 3 ROCK BASS 45 1 GREEN SUNFISH 110 25 BLUEGILL 61 3 LONGEAR SUNFISH 103 21 LONBEAR SUNFISH 103 26 SMALLMOUTH BASS 93 II FRESHWATER DRUM 228 140 DATE: 30NOV88 6IZZARD SHAD 150 2300 6IZZARD SHAD 33o 380 GIZZARD SHAD 330 400 GIZZARD SHAD 270 200 GIZZARD SHAD 361 500 GIZZARD SHAD 110 14 GIZZARD SHAD 131 21 6IZZARD SHAD lit 12 6IZZARD SHAD 118 17 GIZZARD SHAD 131? 27 GIZZARD SHAD 105 11 GIZZARD SHAD 113 14 GIZZARD SHAD 102 9 GIZZARD SHAD 12 Ili GIZZARD SHAD 111 13 6IZZARD SHAD 114 15 GIZZARD SHAD 151 30 6IZZARD SHAD 116 15 GIZZARD SHAD 116 15 GIZZARD SHAD 120 16 GIZZARD SHAD 125 IB GIZZARD SHAD 116 15 GIZZARD SHAD 110 12 6IZZARD SHAD 110 13 6ZZARD SHAD 130 21 GIZZARD SHAD 152 32 GIZZARD SHAD 146 35 6IZZARD SHAD 112 14 GIZZARD SHAD 113 13 GIZZARD SHAD 55 I GIZZARD SHAD 47 1 BLUNTNOSE MINNOW 86 BLUNTWOSE MINNOW 82 15 GUILLBACK 121 24 SILVER REDHORSE 82 7 PIRATE PERCH 75 6 ROCK BASS 71 a ROCK BASS 75 9 ROCK BASS 62 5 ROCK BASS 103 23 ROCK BASS 55 3 ROCK BASS 76 10 ROCK BASS 65 5 ROCK BASS 63 6 ROCK BASS 60 4 ROCK BASS 55 3 ROCK BASS 60 5 GREEN SUNFISH 121 40 :

G-18 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY -----..... o -----. ---.---. . . .-- ...... - o ...... - .o ...... o -o... PLUS BATCH SPECIES LENGTH VEI6HT COUNT WEIGHT ------....------...... ----.. BLUEGILL 139 60 LONGEAR SUNFISH 85 15 SMALLMOUTH BASS 78 6 LARGEMOUTH BASS 162 70 DATE: 05DECBB GIZZARD SHAD 142 2100 GIZZARD SHAD 11 1; GIZZARD SHAD 96 6 GIZZARD SHAD 103 to GIZZARD SHAD 106 10 GIZZARD SHAD 161 40 GIZZARD SHAD 129 20 GIZZARD SHAD 107 9 GIZZARD SHAD 101 8 GIZZARD SHAD 86 5 GIZZARD SHAD 76 3 GIZZARD SHAD 132 18 GIZZARD SHAD 122 17 GIZZARD SHAD 122 12 GIZZARD SHAD 115 13 GIZZARD SHAD 122 15 GIZZARD SHAD 105 10 GIZZARD SHAD 80 4 GIZZARD SHAD 70 3 GIZZARD SHAD 61 1 GIZZARD SHAD 62 1 GIZZARD SHAD 57 1 GIZZARD SHAD 69 2 GIZZARD SHAD 70 2 GIZZARD SHAD 66 2 GIZZARD SHAD 75 3 GIZZARD SHAD 67 2 GIZZARD SHAD 61 I GIZZARD SHAD 51 1 GIZZARD SHAD 60 1 GIZZARD SHAD 120 15 GIZZARD SHAD 79 4 GIZZARD SHAD 70 2 HORNYHEAD CHUB 66 HORNYHEAD CHUB 76 8 STRIPED SHINER 61 1 ROSYFACE SHINER 47 ROSYFACE SHINER 57 SAND SHINER 70 2 MIMIC SHINER 47 1 MIMIC SHINER 71 2 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 77 BLUNTNOSE MINNOW 81 BLUNTNOSE MINNOW 77 BLUNTNOSE MINNOW 77 33 SHORTHEAD REDHORSE 103 10 STONECAT 125 19 ROCK BASS B8 13 ROCK BASS 76 9 ROCK BASS 79 8 ROCK BASS 56 3 ROCK BASS 65 5 ROCK BASS 65 5 ROCK BASS 61 3 ROCK BASS 58 3 ROCK BASS 56 3 ROCK BASS 56 3 ROCK BASS 62 5 ROCK BASS 65 4 ROCK BASS 65 4 ROCK BASS 60 4 ROCK BASS 66 5

G-19 1988-09 BRAJOWDOD STATION INPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 53 2 ROCK BASS 66 5 ROCK BASS 63 4 ROCK BASS 62 5 ROCK BASS 56 3 ROCK BASS 57 3 ROCK BASS 56 2 ROCK BASS 60 3 ROCK BASS 61 3 ROCK BASS 59 3 ROCK BASS 56 2 ROCK BASS 42 2 ROCK BASS 63 3 BLUEGILL 96 15 BLUE61LL 62 4 BLUEGILL 45 1 LONGEAR SUNFISH 90 15 LONGEAR SUNFISH 82 12 LONGEAR SUNFISH 91 14 LONGEAR SUNFISH 74 7 LONGEAR SUNFISH 63 5 UNID LEPOMIS 46 1 UNID LEPOMIS 47 1 UNID LEPOHIS 42 1 UNID LEPOMIS 36 I SMALLNDUIH BASS 87 8 SMALLMOUTH BASS 82 7 SMALLMOUTH BASS 91 9 SMALLMOUTH BASS 93 9 LARBENDUTH BASS 121 22 LARGEMOUTH BASS 130 28 DATE: 06DEC88 GIZZARD SHAD 111 GIZZARD SHAD 124 GIZZARD SHAD 136 GIZZARD SHAD 134 GIZZARD SHAD 101 GIZZARD SHAD 106 GIZZARD SHAD 102 GIZZARD SHAD 92 GIZZARD SHAD 117 GIZZARD SHAD III GIZZARD SHAD 75 GIZZARD SHAD 65 GIZZARD SHAD 113 GIZZARD SHAD 129 GIZZARD SHAD 82 GIZZARD SHAD 127 GIZZARD SHAD 74 GIZZARD SHAD 120 GIZZARD SHAD 122 GIZZARD SHAD 113 GIZZARD SHAD 100 GIZZARD SHAD 91 GIZZARD SHAD 106 GIZZARD SHAD 72 GIZZARD SHAD 63 GIZZARD SHAD 71 GIZZARD SHAD 71 GIZZARD SHAD 61 GIZZARD SHAD 51 GIZZARD SHAD 57 GIZZARD SHAD 61 GIZZARD SHAD foe GIZZARD SHAD 89 BULLHEAD MINNON 67 BULLHEAD MINNOW 53 CHANNEL CATFISH 61 BROOK SILVERSIDE 72

G-20 1989-89 BRAIDNOOD STATION INPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT NEIGHT ROCK BASS 80 10 ROCK BASS 66 5 ROCK BASS 70 7 ROCK BASS 60 3 ROCK BASS 75 8 ROCK BASS 63 5 ROCK BASS 60 3 ROCK BASS 52 2 ORANGESPOTTED SUNFISH 105 25 LONGEAR SUNFISH 201 24 SMALLMOUTH BASS 75 5 WHITE CRAPPIE 114 15 DATE: 07DEC88 GIZZARD SHAD 105 10 GIZZARD SHAD 141 28 GIZZARD SHAD 105 8 GIZZARD SHAD 97 7 GIZZARD SHAD 71 3 GIZZARD SHAD 55 1 GIZZARD SHAD 63 I12 GIZZARD SHAD 109 GIZZARD SHAD 153 37 GIZZARD SHAD 130 29 GIZZARD SHAD 218 18 GIZZARD SHAD 117 14 GIZZARD SHAD 117 II GIZZARD SHAD 127 18 GIZZARD SHAD 20? 10 6IZZARD SHAD 83 5 GIZZARD SHAD 73 3 GIZZARD SHAD 71 3 GIZZARD SHAD 63 2 6IZZARD SHAD 59 2 STRIPED SHINER 50 1 SPOTFIN SHINER 79 5 FATHEAD MINNOW 62 2 BULLHEAD HINNOW 59 1 ROCK BASS 60 4 ROCK BASS 65 7 ROCK BASS 76 9 LONGEAR SUNFISH 76 10 SIALLNOUTH BASS lo1 14 DATE: 12DECB8 GIZZARD SHAD 330 320 GIZZARD SHAD 113 14 GIZZARD SHAD 133 21 GIZZARD SHAD 120 14 6IZZARD SHAD 93 6 GIZZARD SHAD 116 16 GIZZARD SHAD 124 20 GIZZARD SHAD 116 15 6IZZARD SHAD 130 22 GIZZARD SHAD 124 17 GIZZARD SHAD 121 12 GIZZARD SHAD li1 13 GIZZARD SHAD 105 10 6IZZARD SHAD 122 19 GIZZARD SHAD 73 3 6IZZARD SHAD 65 2 SNALLMOUTH BUFFALO 200 140 ROCK BASS 78 10 ROCK BASS 61 4 ROCK BASS 72 e ROCK BASS 74 ROCK BASS 56 4 ROCK BASS 53 3 ROCK BASS 42 1

G-21 1988-89 BRAIDNOOD STATION ZMPINGEMENT STUDY

PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT LARGEMOUTH BASS 111 18 DATE: 13DECBB GIZZARD SHAD 337 335 GIZZARD SHAD 227 120 GIZZARD SHAD GIZZARD SHAD 122 17 GIZZARD SHAD 122 16 GIZZARD SHAD 73 3 GIZZARD SHAD 116 14 GIZZARD SHAD 112 12 GIZZARD SHAD 131 19 GIZZARD SHAD 106 12 GIZZARD SHAD 116 12 GIZZARD SHAD 107 11 GIZZARD SHAD 77 4 GIZZARD SHAD 80 4 GIZZARD SHAD 96 9 GIZZARD SHAD 115 12 GIZZARD SHAD 115 13 GIZZARD SHAD 81 5 GIZZARD SHAD 73 3 GIZZARD SHAD 124 14 6IZZARD SHAD 97 B GIZZARD SHAD 75 3 6IZZARD SHAD 67 2 GIZZARD SHAD 91 6 GIZZARD SHAD 69 2 GIZZARD SHAD 87 5 GIZZARD SHAD 100 7 GIZZARD SHAD 71 3 6IZZAPD SHAD 62 2 GIZZARD SHAD 71 2 GIZZARD SHAD 71 3 MIMIC SHINER 41 MIMIC SHINER 46 BLUNTNOSE MINNOW 75 BLUNTNOSE MINNOW 61 SHORTHEAD REDHORSE 113 I4 ROCK BASS 88 12 ROCK BASS 66 5 ROCK BASS 73 6 ROCK BASS 76 9 ROCK BASS 74 8 ROCK BASS 73 8 ROCK BASS 69 5 ROCK BASS 65 5 ROCK BASS 65 5 ROCK BASS 62 4 ORAN6ESPOTTED SUNFISH 6B 6 LONGEAR SUNFISH 85 12 LONGEAR SUNFISH 105 24 LONGEAR SUNFISH 83 12 UNID LEPOMIS 41 I SMALLMOUTH BASS 90 9

DATE: 14DECO8 GIZZARD SHAD 52 420 GIZZARD SHAD 12i 1 . GIZZARD SHAD 132 22 GIZZARD SHAD 110 12 GIZZARD SHAD 116 16 GIZZARD SHAD 120 17 GIZZARD SHAD 133 27 61ZZARD SHAD 70 4 GIZZARD SHAD 74 4 6IZZARD SHAD 62 3 6IZZARD SHAD 71 4 GIZZARD SHAD 70 4

G-22 1988-89 DRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD ----2 ...... GIZZARD SHAD 57 2 GIZZARD SHAD 75 5 GIZZARD SHAD 69 4 6ZZARD SHAD 71 4 GIZZARD SHAD 65 4 GIZZARD SHAD 65 4 GIZZARD SHAD 62 3 GIZZARD SHAD 71 4 GIZZARD SHAD 77 5 6IZZARD SHAD 73 4 GIZZARD SHAD 82 6 GIZZARD SHAD 92 5 6IZZARD SHAD 66 3 GIZZARD SHAD 66 3 GIZZARD SHAD 62 3 GIZZARD SHAD 76 3 61Z1ARD6IZZARD SHAD 6171 34 GOLDEN SHINER 96 9 mImIC SHINER 58 2 FATHEAD MINNOW 62 3 BULLHEAD MINNOW 58 BULLHEAD MINNOW 58 SHORTHEAD REDHORSE 110 15 CHANNEL CATFISH 66 3 BROOK SILVERSIDE 72 2 ROCK BASS 69 9 ROCK BASS 72 8 ROCK BASS 73 10 ROCK BASS 80 11 ROCK BASS 72 9 ORANGESPOTTED SUNFISH 84 13 SMALLMOUTH BASS 112 20 SMALLMOUTH BASS 87 10 DATE: 19DECB8 GIZZARD SHAD 194 2100 GIZZARD SHAD 336 400 GIZZARD SHAD 403 670 GIZZARD SHAD 114 13 GIZZARD SHAD 120 15 GIZZARD SHAD 136 22 GIZZARD SHAD 95 7 6IZZARD SHAD 165 36 GIZZARD SHAD 120 15 GIZZARD SHAD 173 43 GIZZARD SHAD 115 11 GIZZARD SHAD 96 7 6IZZARD SHAD 71 3 GIZZARD SHAD 76 3 GIZZARD SHAD 119 16 GIZZARD SHAD 126 16 6IZZARD SHAD 134 20 GIZZARD SHAD 122 16 GIZZARD SHAD 125 17 GIZZARD SHAD 93 5 GIZZARD SHAD 72 3 6IZZARD SHAD 90 5 GIZZARD SHAD 74 4 GIZZARD SHAD 120 15 GIZZARD SHAD 67 4 GIZZARD SHAD 63 3 GIZZARD SHAD 75 4 GIZZARD SHAD s0 5 GIZZARD SHAD 71 4 6IZZARD SHAD s0 5 GIZZARD SHAD 68 4 153 GOLDEN SHINER 60 GOLDEN SHINER 94 2 SAND SHINER 58 1988-69 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT -LUNTNOSE MINNOW 73 - - BLUNTNOSE MINNOW 78 BLUNTNOSE MINNOW 72 13 SMALLMOUTH BUFFALO 167 60 SILVER REDHORSE 217 120 GOLDEN REDHORSE 122 21 SHORTHEAD REDHORSE 103 it SHORTHEAD REDHORSE 112 14 SHORTHEAD REDHORSE 106 12 ROCK BASS 115 30 ROCK BASS 85 12 ROCK BASS 71 6 ROCK BASS 76 8 ROCK BASS 71 7 ROCK BASS 78 8 ROCK BASS 153 65 ROCK BASS 196 160 ROCK BASS 83 10 ROCK BASS 81 10 ROCK BASS 73 7 ROCK BASS 82 9 ROCK BASS 79 9 ROCK BASS 72 7 ROCK BASS 59 4 ROCK BASS 80 7 ROCK BASS 6B 6 ROCK BASS 68 6 ROCK BASS 65 5 ROCK BASS 77 8 ROCK BASS 66 5 ROCK BASS 41 ! ROCK BASS 113 27 ROCK BASS 114 28 ROCK BASS 58 6 ROCK BASS 67 6 ROCK BASS 63 5 ROCK BASS 48 2 ROCK BASS 87 12 ROCK BASS 77 9 ROCK BASS GREEN SUNFISH 133 50 GREEN SUNFISH 91 20 GREEN SUNFISH 152 70 GREEN SUNFISH 143 65 GREEN SUNFISH 115 29 GREEN SUNFISH 120 32 GREEN SUNFISH 81 10 LONBEAR SUNFISH 107 28 LONGEAR SUNFISH 108 32 LONMEAR SUNFISH 116 36 LONGEAR SUNFISH 96 28 LONGEAR SUNFISH 93 16 LONGEAR SUNFISH 77 9 LONSEAR SUNFISH 56 3 LONEAR SUNFISH 51 2 LON6EAR SUNFISH 45 1 LONGEAR SUNFISH 43 I SMALLMOUTH BASS 91 9 LARGEMOUTH BASS 187 90 BLACK CRAPPIE 265 300 DATE: 21DEC88 GIZZARD SHAD 651 3700 GIZZARD SHAD 7i GIZZARD SHAD 64 5 GIZZARD SHAD 102 GIZZARD SHAD 92 61ZZARD SHAD 116 14 GIZZARD SHAD 70 4 GIZZARD SHAD 80 5

G-24 19BB-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEISHi ------.-.. -----..----- ...... ------.. GIZZARD SHAD 67 3 GIZZARD SHAD 68 4 GIZZARD SHAD 71 4 GIZZARD SHAD 85 6 GIZZARD SHAD 79 5 GIZZARD SHAD 75 5 GIZZARD SHAD 72 4 GIZZARD SHAD 63 3 GIZZARD SHAD 106 12 GIZZARD SHAD 113 15 GIZZARD SHAD 82 5 GIZZARD SHAD 74 4 GIZZARD SHAD 77 5 GIZZARD SHAD 68 4 GIZZARD SHAD 70 4 6IZZARD SHAD 65 4 6IZZARD SHAD 77 5 GIZZARD SHAD 63 3 GIZZARD SHAD 65 3 GIZZARD SHAD 58 3 GIZZARD SHAD 58 3 GIZZARD SHAD 67 3 COMMON CARP 251 240 HORNYHEAD CHUB 59 3 BLUNTHOSE MINNOW 76 BLUNTNOSE MINNOW 75 SMALLMOUTH BUFFALO 171 65 ROCK BASS 76 if ROCK BASS 70 7 ROCK BASS 77 10 ROCK BASS 82 13 ROCK BASS 75 9 ROCK BASS 62 6 ROCK BASS 76 9 ROCK BASS 82 11 ROCK BASS 74 B ROCK BASS 72 8 ROCK BASS 53 4 ROCK BASS 8e It ROCK BASS 64 6 ROCK BASS 70 7 ROCK BASS 72 8 ROCK BASS 56 4 ROCK BASS 53 3 56 4 LON6EARLONGEAR SUNFISH 40 1 SMALLMOUTH BASS 93 II SMALLMOUTH BASS 75 7 DATE: 26DEC8O GIZZARD SHAD 2542 12500 GIZZARD SHAD 110 GIZZARD SHAD 79 5 GIZZARD SHAD 84 6 61IZARD SHAD 77 4 GIZZARD SHAD 74 5 GIZZARD SHAD 74 4 GIZZARD SHAD 77 4 GIZZARD SHAD 70 3 GIZZARD SHAD 69 3 GIZZARD SHAD 91 7 GIZZARD SHAD 77 5 6IZZARD SHAD 66 3 GIZZARD SHAD 72 4 6IZZARD SHAD 77 5 61ZZARD SHAD 66 3 GIZZARD SHAD 70 4 6IZZARD SHAD 67 3 GIZZARD SHAD 70 4 6IZZARD SHAD 66 3 1988-B9 BRAIDWOOD STATION IMPINGEMENT STUDY

PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ------.-- .- .------...... ------... ------... ------6IZZARD SHAD 82 5 6IZZARD SHAD 75 4 GIZZARD SHAD 78 5 GIZZARD SHAD 66 3 GIZZARD SHAD 66 3 GIZZARD SHAD 71 4 GIZZARD SHAD eI 5 GIZZARD SHAD 66 3 6IZZARD SHAD 63 3 GIZZARD SHAD 67 4 GIZZARD SHAD 64 3 COMMON CARP 250 290 HORNYHEAD CHUB 76 6 ROSYFACE SHINER 65 ROSYFACE SHINER 54 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 59 ROSYFACE SHINER 61 ROSYFACE SHINER 56 10 MIMIC SHINER 52 2 BROOK SILVERSIDE 73 BROOK SILVERSIDE 75 ROCK BASS 76 10 ROCK BASS 71 7 ROCK BASS 63 5 ROCK BASS 72 8 ROCK BASS 74 7 ROCK BASS 61 5 ROCK BASS 70 5 ROCK BASS 61 5 ORANGESPOTTED SUNFISH 76 9 LONGEAR SUNFISH 53 3 SMALLMOUTH BASS 115 19 SNALLMOUTH BASS 98 11 DATE: 27DECB8 6ZZARD SHAD 1096 5500 GIZZARD SHAD 7i 6IZZARD SHAD 12B GIZZARD SHAD 72 GIZZARD SHAD 71 GIZZARD SHAD 72 GIZZARD SHAD 81 GIZZARD SHAD 110 GIZZARD SHAD 80 GIZZARD SHAD 76 GIZZARD SHAD 67 GIZZARD SHAD 94 GIZZARD SHAD 78 GIZZARD SHAD 69 GIZZARD SHAD 98 GIZZARD SHAD 86 GIZZARD SHAD 62 GIZZARD SHAD 71 GIZZARD SHAD 66 GIZZARD SHAD 77 GIZZARD SHAD 65 GIZZARD SHAD 72 GIZZARD SHAD 72 GIZZARD SHAD 73 GIZZARD SHAD s0 GIZZARD SHAD 73 GIZZARD SHAD 71 GIZZARD SHAD 76 6IZZARD SHAD 62 GIZZARD SHAD 57 GIZZARD SHAD 67 FATHEAD MINNOW 67 SNORTHEAD REDHORSE 71

G-26 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT ------...... ------...... LONGEAR SUNFISH 99 21 DATE: 28DECBB GIZZARD SHAD 1029 6500 GIZZARD SHAD 92 7 6IZZARD SHAD 110 12 GIZZARD SHAD 92 7 GIZZARD SHAD 105 10 GIZZARD SHAD 90 6 GIZZARD SHAD 71 3 GIZZARD SHAD 89 6 GIZZARD SHAD 87 6 GIZZARD SHAD 77 4 GIZZARD SHAD 82 5 GIZZARD SHAD 75 5 61ZZARD SHAD 70 4 GIZZARD SHAD 68 4 61ZZARD SHAD 65 3 GIZZARD SHAD 71 4 GIZZARD SHAD 65 3 GIZZARD SHAD 72 3 GIZZARD SHAD 68 3 GIZZARD SHAD 75 4 GIZZARD SHAD 71 3 GIZZARD SHAD 69 3 6IZZARD SHAD 72 3 GIZZARD SHAD 113 14 GIZZARD SHAD 72 4 GIZZARD SHAD 74 4 GIZZARD SHAD 70 3 GIZZARD SHAD 65 2 GIZZARD SHAD 72 4 GIZZARD SHAD 64 3 GIZZARD SHAD 71 4 ROSYFACE SHINER 60 ROSYFACE SHINER 62 ROSYFACE SHINER 57 SPOIFIN SHINER 53 BROOK SILVERSIDE 82 2 ROCK BASS 120 29 ROCK BASS 76 9 ROCK BASS 113 26 ROCK BASS 77 10 ROCK BASS 73 7 ROCK BASS 67 6 ROCK BASS 81 9 ROCK BASS 80 10 ROCK BASS 95 17 ROCK BASS 71 6 ROCK BASS 61 4 ROCK BASS 51 2 ROCK BASS 64 5 ROCK BASS 65 5 ROCK BASS 78 10 ROCK BASS 85 II ROCK BASS 46 1 GREEN SUNFISH 94 14 GREEN SUNFISH B2 10 BLUE61LL 34 I LON6EAR SUNFISH 112 31 SNALLMOUTH BASS 216 16 SNALDHOUTH BASS 93 9 SHALLMOUTH BASS 78 6 SNALLHOUTH BASS 68 4 DATE: 02JAN89 6IZZARD SHAD 342 1700 GIZZARD SHAD 7.. GIZZARD SHAD 85 6

G-27 1988-89 DRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH NEI6HT COUNT NEIGHT ------...... -----...... ------GIZZARD SHAD 136 20 GIZZARD SHAD 143 26 GIZZARD SHAD 103 10 GIZZARD SHAD 96 7 GIZZARD SHAD 102 9 GIZZARD SHAD 76 4 GIZZARD SHAD 76 3 GIZZARD SHAD 87 7 GIZZARD SHAD 82 5 GIZZARD SHAD 105 10 GIZZARD SHAD 77 5 GIZZARD SHAD GO 5 GIZZARD SHAD 65 3 6IZZARD SHAD 91 7 GIZZARD SHAD 70 3 GIZZARD SHAD 71 3 GIZZARD SHAD 87 6 GIZZARD SHAD 114 12 GIZZARD SHAD 96 6 GIZZARD SHAD 73 4 GIZZARD SHAD 82 5 GIZZARD SHAD 63 5 GIZZARD SHAD 87 6 6IZZARD SHAD 67 3 GIZZARD SHAD 82 5 6IZZARD SHAD 72 3 GIZZARD SHAD 72 3 BULLHEAD MINNOW 72 4 ROCK BASS 79 9 ROCK BASS 71 7 ROCK BASS 59 2 GREEN SUNFISH 95 16 SMALLMOUTH BASS 74 5 SMALLHDUTH BASS 113 15 SMALLMOUTH BASS 115 19 SNALLhODUH BASS 97 12 YELLOW PERCH 120 21 DATE: 03JAN89 6IZZARD SHAD 320 320 GIZZARD SHAD 450 450; 6IZZARD SHAD 92 7 GIZZARD SHAD 155 32 GIZZARD SHAD 113 15 GIZZARD SHAD 112 13 GIZZARD SHAD 119 16 GIZZARD SHAD 80 6 GIZZARD SHAD 103 10 GIZZARD SHAD 118 16 GIZZARD SHAD 92 7 6IZZARD SHAD 120 16 GIZZARD SHAD 115 13 GIZZARD SHAD 146 27 GIZZARD SHAD 102 9 83 5 GIZZARD SHAD 5 GIZZARD SHAD 82 GIZZARD SHAD 86 6 90 6 GIZZARD SHAD 6 GIZZARD SHAD 85 GIZZARD SHAD 102 11 GIZZARD SHAD 72 3 GIZZARD SHAD 63 3 GIZZARD SHAD 82 5 GIZZARD SHAD 102 9 6IZZARD SHAD 135 20 GIZZARD SHAD 122 16 GIZZARD SHAD 94 8 GIZZARD SHAD 105 10 GIZZARD SHAD 83 6 GIZZARD SHAD 71 3

G-28 1988-99 BRAIDMOOD STATION IMPINSENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT NEIGHT ------..----...... --...... HORNYHEAD CHUB 69 HORNYHEAD CHUB 05 10 BUILLBACK 114 17 RIVER REDHORSE 465 1680 SHORTHEAD REDHORSE 106 13 SHORTHEAD REDHORSE 108 12 ROCK BASS 190 125 ROCK BASS IBS 125 ROCK BASS 99 18 ROCK BASS 83 10 ROCK BASS 69 7 ROCK BASS B 10 ROCK BASS 74 9 ROCK BASS 82 10 ROCK BASS 74 8 ROCK BASS 64 5 ROCK BASS 81 II ROCK BASS £2 6 ROCK BASS 73 7 ROCK BASS 91 15 ROCK BASS 85 II ROCK BASS 77 B ROCK BASS 80 9 ROCK BASS 69 5 ROCK BASS 61 4 ROCK BASS 61 4 ROCK BASS 73 7 ROCK BASS 69 6 ROCK BASS 85 13 ROCK BASS 71 6 ROCK BASS 63 5 ROCK BASS 50 2 ROCK BASS 55 3 ROCK BASS 70 6 ROCK BASS 74 8 ROCK BASS 69 6 LONGEAR SUNFISH 114 37 SNALLMOUTH BASS B 6 SNALLOUTH BASS 113 15 SHALLHOUTH BASS 103 13 SHALLMOUTH BASS 104 13 SGALLMOUTH BASS 87 8 SMALLOUTH BASS 66 4 LOSPERCH 95 7 BLACKSIDE DARTER 72 4 DATE: 04JANB9 61ZZARD SHAD 150 1100 6IZZARD SHAD 95 GIZZARD SHAD 117 12 GIZZARD SHAD 120 14 GIZZARD SHAD 112 12 GIZZARD SHAD 121 17 GIZZARD SHAD 113 12 6IZZARD SHAD 62 2 6IZZARD SHAD 90 7 GIZZARD SHAD 63 2 GIZZARD SHAD 64 3 GIZZARD SHAD 63 2 GIZZARD SHAD 97 7 GIZZARD SHAD 113 13 6ZZARD SHAD 74 3 GIZZARD SHAD 89 7 GIZZARD SHAD 81 5 GIZZARD SHAD 66 2 GIZZARD SHAD 97 7 GIZZARD SHAD 76 4 6IZZARD SHAD 75 3 61ZZARD SHAD 71 3 6IZARD SHAD 72 3

G-29 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT HEIHT GIZZARD SHAD 76 4 GIZZARD SHAD 79 3 GIZZARD SHAD 63 2 GIZZARD SHAD 60 2 GIZZARD SHAD 70 2 GIZZARD SHAD 64 2 GIZZARD SHAD 65 2 ILUNTNOSE MINNOW 77 4 BULLHEAD MINNOW 57 BULLHEAD MINNOW &I i SILVER REDHORSE 117 18 SHORTHEAD REDHORSE 123 16 SHORTHEAD REDHORSE 112 14 SHORTHEAD REDHORSE 128 21 SHORTHEAD REDHORSE 113 15 SHORTHEAD REDHORSE 124 20 SHORTHEAD REDHORSE 133 24 SHORTHEAD REDHORSE 112 12 SNORTHEAD REDHORSE 120 17 SHORTHEAD REDHORSE 116 13 ROCK BASS 61 4 ROCK BASS 68 6 ROCK BASS 74 8 ROCK BASS 57 4 ROCK BASS 114 29 ROCMBASS 75 8 ROCK BASS 61 4 ROCK BASS 69 6 ROCK BASS 76 8 ROCK BASS 63 5 ROCK BASS 74 8 ROCK BASS 79 9 ROCK BASS 69 6 ROCf BASS 66 5 ROCK BASS 70 6 ROCK BASS 66 5 ROCK BASS 54 3 ROCK BASS 74 9 ROCK BASS 76 8 ROCK BASS 71 6 ROCK BASS 72 6 ROCK BASS 68 6 ROCK BASS 80 11 ROCK BASS 66 6 ROCK BASS 57 3 ROCK BASS B3 11 ROCK BASS 66 6 ROCK BASS 79 9 ROCK BASS 56 3 ROCK BASS 71 8 ROCK BASS 63 5 ROCK BASS 3i GREEN SUNFISH 138 55 LON6EAR SUNFISH 94 20 LONGEAR SUNFISH 106 29 LONGEAR SUNFISH 51 2 LONGEAR SUNFISH 92 17 SNALLIOUTH BASS 113 17 SHALLMOUTH BASS 94 a SHALLMOUTH BASS 119 15 SNALLMOUTH BASS 75 5 SNALLMOUTH BASS 84 7 SAL LNOUTH BASS 92 10 SMALLNOUTH BASS 78 6 SMALLMOUTH BASS 78 6 DLACKSIDE DARTER 61 2 DATE: 09JAN89

G-30 1986-89 BRAIDNOOD STATION INPINGENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT VEIGHT ------.-----.------.----- ...... 6IZZARD SHAD 804 8000 GIZZARD SHAD 122 15 GIZZARD SHAD 125 16 GIZZARD SHAD 103 to 61ZZARD SHAD 110 11 GIZZARD SHAD 97 10 GIZZARD SHAD 99 9 6IZZARD SHAD 90 7 GIZZARD SHAD 80 5 GIZZARD SHAD 117 12 GIZZARD SHAD 82 5 GIZZARD SHAD 82 5 GIZZARD SHAD 98 9 GIZZARD SHAD 106 12 GIZZARD SHAD 120 17 GIZZARD SHAD 106 II GIZZARD SHAD 105 9 GIZZARD SHAD 97 B GIZZARD SHAD 109 I1 GIZZARD SHAD I1o 13 GIZZARD SHAD 72 5 6ZZARD SHAD 107 12 GIZZARD SHAD 96 8 GIZZARD SHAD 110 13 GIZZARD SHAD 92 8 GIZZARD SHAD 90 7 GIZZARD SHAD 89 7 GIZZARD SHAD 94 B GIZZARD SHAD 113 14 GIZZARD SHAD 121 1i GIZZARD SHAD 72 4 GIZZARD SHAD 73 4 HORNYHEAD CHUB 77 5 RED SHINER 75 5 ROSYFACE SHINER 64 ROSYFACE SHINER 60 ROSYFACE SHINER 57 ROSYFACE SHINER 61 ROSYFACE SHINER 54 ROSYFACE SHINER 65 ROSYFACE SHINER 65 ROSYFACE SHINER 65 ROSYFACE SHINER 57 RDSYFACE SHINER 58 ROSYFACE SHINER 58 ROSYFACE SHINER 54 ROSYFACE SHINER 56 ROSYFACE SHINER £0 ROSYFACE SHINER 58 20 SPOTFIN SHINER 66 SPOTFIN SHINER 67 SAND SHINER 61 SAND SHINER 69 MINIC SHINER 49 1 SUCKERMOUTH MINNOW 72 5 GUILLBACK 130 28 OUILLIACK 132 28 QUILLBACK 142 35 SILVER REDHORSE 96 12 SILVER REDHORSE 82 7 SHORTHEAD REDHORSE 93 9 SHORTHEAD REDHORSE 126 1o SHORTHEAD REDHORSE 115 16 SIORTHEAD REDHORSE 110 15 SHORTHEAD REDHORSE 109 14 SHORTHEAD REDHORSE 104 13 SHORTHEAD REDHORSE 125 23 SHORTHEAD REDHORSE 61 3 SHORTHEAD REDHORSE 122 19 SHORTHEAD REDHORSE 91 7 STONECAT 104 10

G-31 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY

PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT -...... S--RSD -OO- 60- BROOK SILVERSIDE O2 BROOK SILVERSIDE 82 BROOK SILVERSIDE 67 BROOK SILVERSIDE 82 . BROOK SILVERSIDE 67 ROCK BASS 195 155 ROCK BASS 125 40 ROCK BASS 72 7 ROCK BASS 66 6 ROCK BASS 84 13 ROCK BASS 71 7 ROCK BASS 81 11 ROCK BASS 82 II ROCK BASS 70 7 ROCK BASS 78 9 ROCK BASS 73 8 ROCK BASS 71 7 ROCK BASS I1 5 ROCK BASS 75 9 ROCK BASS 80 I0 ROCK BASS 71 7 ROCK BASS 64 6 ROCK BASS 84 13 ROCK BASS 69 7 ROCK BASS 61 5 ROCK BASS 55 4 ROCK BASS 39 I ROCK BASS 43 1 ROCK BASS 45 2 ROCK BASS 45 2 ROCK BASS 46 2 ROCK BASS 42 1 ROCK BASS 45 2 GREEN SUNFISH 112 34 GREEN SUNFISH 124 47 ORANGESPOTTED SUNFISH 74 8 LONGEAR SUNFISH 43 I LONGEAR SUNFISH 117 39 LONGEAR SUNFISH 84 13 LONGEAR SUNFISH 72 9 LONGEAR SUNFISH 72 9 LONBEAR SUNFISH 56 4 SMALLMOUTH BASS 84 8 SMALLMOUTH BASS 71 5 SMALLMOUTH BASS lot 13 SMALLOUTH BASS 77 7 SMALLMOUTH BASS 69 4 SMALLHOUTH BASS 91 10 SMALLMOUTH BASS 92 12 SMALLMOUTH BASS 115 19 SMALLMOUTH BASS 71 5 SNALLNOUTH BASS 107 15 SMALLMOUTH BASS e1 6 SNALLMOUTH BASS 80 6 SNALLNOUTH BASS 63 4 GNALLNOUTH BASS 72 5 DATE: IIJAN89 GIZZARD SHAD 536 5900 6IZZARD SHAD Ii GIZZARD SHAD 134 20 GIZZARD SHAD 115 13 6IZZARD SHAD 106 I1 6IZZARD SHAD 103 10 6IZZARD SHAD 122 16 GIZZARD SHAD 122 17 GIZZARD SHAD 99 9 6IZZARD SHAD 77 4 GIZZARD SHAD 95 6 6IZZARD SHAD 82 5 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT GIZZARD SHAD 120 16 GIZZARD SHAD 110 II GIZZARD SHAD 130 19 GIZZARD SHAD 122 15 GIZZARD SHAD 117 17 GIZZARD SHAD 125 1B GIZZARD SHAD 105 10 GIZZARD SHAD 95 7 GIZZARD SHAD 96 8 GIZZARD SHAD 99 8 GIZZARD SHAD 90 7 6ZZARD SHAD i18 16 GIZZARD SHAD 128 19 GIZZARD SHAD 104 10 GIZZARD SHAD 99 10 6IZZARD SHAD 103 9 GIZZARD SHAD 102 9 GIZZARD SHAD 92 7 GIZZARD SHAD 80 6 RDSYFACE SHINER 52 ROSYFACE SHINER 61 ROSYFACE SHINER 57 ROSYFACE SHINER 57 ROSYFACE SHINER 58 ROSYFACE SHINER 65 3 MIMIC SHINER 48 MIMIC SHINER 47 MIMIC SHINER 53 MIMIC SHINER 56 BLUNTNOSE MINNOK 81 BLUNTHOSE MINNON 77 BLUNTNOSE MINNOW 84 15 SILVER REDHORSE 92 9 SILVER REDHORSE 103 13 SHORTHEAD REDHORSE 126 22 SHORTHEAD REDHORSE 115 16 SUORTHEAD REDHORSE 117 19 SHORTHEAD REDHORSE 126 21 BLACK BULLHEAD I1o 16 BROWN BULLHEAD 107 15 CHANNEL CATFISH 71 4 CHANNEL CATFISH 73 4 BROOK SILVERSIDE 66 BROOK SILVERSIDE 80 BROOK SILVERSIDE 74 BROOK SILVERSIDE 79 BROOK SILVERSIDE 65 BROOK SILVERSIDE 78 BROOK SILVERSIDE 79 BROOK SILVERSIDE 71 BROOK SILVERSIDE 60 BROOK SILVERSIDE 74 17 ROCK BASS 77 8 ROCK BASS 64 6 ROCK BASS 77 10 ROCK BASS 72 9 ROCK BASS 72 9 ROCK BASS 61 5 ROCK BASS 69 a ROCK BASS 63 6 ROCK BASS 52 4 ROCK BASS 56 4 ROCK BASS 5I 3 ROCK BASS 42 1 ROCK BASS 46 2 ROCK BASS 41 1 ROCK BASS 41 1 GREEN SUNFISH 120 32 LONGEAR SUNFISH 62 13 LONGEAR SUNFISH 52 3 LONGEAR SUNFISH 43 2

G-33 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 38 1 LONBEAR SUNFISH 36 I SNALLMOUTH BASS 91 I1 SNALLMOUTH BASS 82 8 SNALLMOUTH BASS 96 t0 SNALLMOUTH BASS 93 10 SMALLMOUTH BASS 95 10 SNALLMOUTH BASS 83 8 SNALLMOUTH BASS 63 4 SNALLMOUTH BASS 80 7 SNALLMOUTH BASS 109 14 SNALLOUTH BASS 84 9 SNALLMOUTH BASS 71 5 SMALLMOUTH BASS 105 12 SNALLMOUTH BASS 86 8 SNALMHOUTH BASS 107 15 SNALLNOUTH BASS 91 10 SNALLNOUTH BASS 72 5 SMALLMOUTH BASS 86 8 SNALLMOUTH BASS 91 10 SMALLMOUTH BASS 80 7 SMALLMOUTH BASS 92 9 SMALLNOUTH BASS 74 5 SMAiLMOUTH BASS 87 1( SMALLMOUTH BASS 84 9 SMALLMOUIH BASS 80 B SMALLMOUTH BASS 82 7 SMALLMOUTH BASS 75 6 SMALLNOUTH BASS 79 7 SMALLMOUTH BASS 82 7 SMALLMOUTH BASS 66 5 LARGENOUTH BASS 131 27 YELLOW PERCH 136 35 BLACKSIDE DARTER 70 4 DATE: 16JAN89

GIZZARD SHAD 120 1100 GIZZARD SHAD IliS 14 6IZZARD SHAD 107 12 GIZZARD SHAD 126 17 GIZZARD SHAD 125 16 GIZZARD SHAD 116 14 GIZZARD SHAD 109 12 GIZZARD SHAD 89 7 GIZZARD SHAD 109 10 GIZZARD SHAD 127 IS gIZZARD SHAD 162 35 gIZZARD SHAD 112 12 61ZZARD SHAD 107 10 GIZZARD SHAD 82 5 GIZZARD SHAD l01 9 GIZZARD SHAD 95 7 GIZZARD SHAD 92 5 GIZZARD SHAD 91 6 GIZZARD SHAD 1to 12 6IZZARD SHAD III 11 GIZZARD SHAD 120 13 GIZZARD SHAD 112 12 gIZZARD SHAD 97 8 GIZZARD SHAD 100 9 6IZZARD SHAD 100 8 gIZZARD SHAD 96 II giZZARD SHAD 78 5 gIZZARD SHAD 71 4 GIZZARD SHAD 90 6 GIZZARD SHAD 79 5 gIZZARD SHAD 90 5 COMMON CARP 194 120

G-34 1980-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT HORNYHEAD CHUB 63 3 STRIPED SHINER 72 4 ROSYFACE SHINER 55 ROSYFACE SHINER 64 ROSYFACE SHINER 65 ROSYFACE SHINER 59 ROSYFACE SHINER 54 ROSYFACE SHINER 64 8 SPOTFIN SHINER 87 SPOTFIN SHINER B8 SPOTFIN SHINER 60 13 SAND SHINER 51 SAND SHINER 51 NIMIC SHINER 52 BLUNTNOSE MINNOW 73 BLUNTNOSE MINNOW 70 FATHEAD MINNOW 65 FATHEAD MINNOW 69 FATHEAD MINNOW 59 BULLHEAD MINNOW 69 BULLHEAD MINNOW 59 GUILLBACK 133 26 NORTHERN HOG SUCKER 152 39 NORTHERN HOE SUCKER 111 16 SILVER REDHORSE 105 13 SILVER REDHORSE 97 11 SILVER REDHORSE 110 Is GOLDEN REDHORSE B7 8 SHORTHEAD REDHORSE 131 24 SHORTHEAD REDHORSE 118 17 SHORTHEAD REDHORSE 123 20 SHORTHEAD REDHORSE 114 15 BLACK BULLHEAD III le CHANNEL CATFISH 63 1 CHANNEL CATFISH 54 I BROOK SILVERSIDE B8 BROOK SILVERSIDE 60 BROOK SILVERSIDE 85 BROOK SILVERSIDE 77 BROOK SILVERSIDE 72 BROOK SILVERSIDE 73 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 72 BROOK SILVERSIDE 73 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 78 BROOK SILVERSIDE 74 BROOK SILVERSIDE 64 BROOK SILVERSIDE 75 BROOK SILVERSIDE BI BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 74 BROOK SILVERSIDE 70 BROOK SILVERSIDE 72 BROOK SILVERSIDE 70 BROOK SILVERSIDE 54 BROOK SILVERSIDE go BROOK SILVERSIDE 72 BROOK SILVERSIDE 77 BROOK SILVERSIDE 72 50 ROCK BASS 79 9 ROCK BASS 65 5 ROCK BASS 60 5 ROCK BASS 61 5 ROCK BASS 89 15 ROCK BASS 98 16 ROCK BASS 62 5 ROCK BASS 61 7

G-35 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ------. ------... ------.------.----- ...... ROCK BASS 62 5 ROCK BASS 72 8 ROCK BASS 57 4 ROCK BASS 59 5 ROCK BASS 66 7 ROCK BASS 73 9 ROCK BASS 56 4 ROCK BASS 80 11 ROCK BASS 77 10 ROCK BASS 93 16 ROCK BASS 62 5 ROCK BASS 60 5 ROCK BASS 60 5 ROCK BASS 67 7 ROCK BASS 56 3 ROCK BASS 76 10 ROCK BASS 80 I1 ROCK BASS 79 10 ROCK BASS 63 6 ROCK BASS 57 4 ROCK BASS 64 6 ROCK BASS 28 Ili GREEN SUNFISH I2N 35 GREEN SUNFISH 164 90 ORANGESPOTTED SUNFISH 83 12 LON6EAR SUNFISH 119 39 LONGEAR SUNFISH 38 1 LONSEAR SUNFISH 37 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 32 1 LONGEAR SUNFISH 34 1 LONGEAR SUNFISH 33 1 SMALLMOUTH BASS 87 9 SNALLMOUTH BASS 101 12 SNALLMOUTH BASS 127 21 SMALLROUTH BASS 89 9 SHALLMOUTH BASS 106 14 SNALLOUTH BASS 119 18 SMALLMOUTH BASS 92 10 SMALLOUTH BASS 120 19 SNALLNOUTH BASS 94 !0 SMALLMOUTH BASS B2 B SNALLMOUTH BASS 65 4 SMALLMOUTH BASS 67 4 SMALLMOUTH BASS 82 7 SMALLNOUTH BASS 82 a SfALLMOUTH BASS 86 8 SMALLMOUTH BASS 87 9 SNALLMOUTH BASS 90 10 SHALLMOUTH BASS 83 B WHITE CRAPPIE 305 425 BLACK CRAPPIE 277 405 BLACK CRAPPIE 257 240 DATE: 17JAN89 GIZZARD SHAD 75 1000 GIZZARD SHAD IliS 24 GIZZARD SHAD 140 25 GIZZARD SHAD 130 20 GIZZARD SHAD 142 24 6IZZARD SHAD 117 15 6IZZARD SHAD 210 11 6ZZARD SHAD 112 12 6IZZARD SHAD 79 5 GIZZARD SHAD 91 7 GIZZARD SHAD 90 7 GIZZARD SHAD 132 22 GIZZARD SHAD 117 14 GIZZARD SHAD 122 16 6ZZARD SHAD 127 17

G-36 I98B-89 BRAIOWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT -I--ARD SHAD------12 "--- GIZZARD SHAD 109 12 6IZZARD SHAD 103 12 GIZZARD SHAD 107 13 GIZZARD61ZZARD SHAD 114119 13 6IZZARD SHAD I1o II GIZZARD SHAD 95 8 GIZZARD SHAD 120 15 GIZZARD SHAD 105 II GIZZARD SHAD BI 5 GIZZARD SHAD 81 5 GIZZARD SHAD 107 10 GIZZARD SHAD 91 7 GIZZARD SHAD 95 9 GIZZARD SHAD 76 4 HORNYHEAD CHUB 82 HORNYHEAD CHUB 70 t0 ROSYIACE SHINER 64 1 SPOTFIN SHINER 76 4 SAND SHINER 77 3 MIMIC SHINER 62 MIMIC SHINER 63 SUCKERMOUTH MINNOW 77 5 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 66 BLUNINOSE MINNOW 6 1O FATHEAD MINNOW 61 2 BULLHEAD MINNOW 57 BULLHEAD MINNOW 57 SILVER REDHORSE 103 12 SILVER REDHORSE 125 21 SHORTHEAD REDHORSE 1IB 15 SHORFHEAO REDHORSE 122 19 SHORTHEAD REDHORSE 121 I1 BROWN BULLHEAD 155 40 BROOK SILVERSIDE 6B BROOK SILVERSIDE 84 BROOK SILVERSIDE 71 BROOK SILVERSIDE 84 BROOl: SILVERSIDE 77 BROOK SILVERSIDE 74 BROOK SILVERSIDE 77 BROOK SILVERSIDE 79 BROOK SILVERSIDE 84 BROOK SILVERSIDE 69 BROOK SILVERSIDE 71 BROOK SILVERSIDE 63 BROOK SILVERSIDE 77 BROOK SILVERSIDE 74 BROOK SILVERSIDE 78 28 ROCK BASS 72 7 ROCK BASS 71 8 ROCK BASS 88 15 ROCK BASS 71 7 ROCK BASS 63 4 ROCK BASS 63 5 ROCK BASS 82 12 ROCK BASS 72 7 ROCK BASS 57 4 ROCK BASS 68 7 ROCK BASS 70 7 ROCK BASS 65 5 ROCK BASS 62 5 ROCK BASS 62 5 ROCK BASS 60 5 ROCK BASS 71 7 ROCK BASS 68 6 ROCK BASS 61 5 ROCK BASS 70 8 ROCK BASS 60 5 ROCK BASS 53 3

G-37 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY

PLUS BATCH SPECIES LEN6TH WEIGHT COUNT WEIGHT ROCK BASS 53 3 ROCK BASS 42 1 GREEN SUNFISH 166 so GREEN SUNFISH 41 1 LONGEAR SUNFISH 85 12 LONGLAR SUNFISH 113 31 LONGEAR SUNFISH 45 2 SMALLMOUTH BASS 14B 37 SMALLMOUTH BASS 94 11 SMALLMOUTH BASS 87 8 SMALLMOUTH BASS 93 10 SMALLMOUTH BASS 103 13 SMAAL.MOUTH BASS 73 4 SMALLROUTH BASS 70 4 SMALLMOUTH BASS 110 17 SMALLNOUTH BASS 112 19 YELLOW PERCH 131 23 BLACKSIDE DARTER 78 5 DATE: 18JAN89 GIZZARD SHAD 450 GIZZARD SHAD 127 GIZZARD SHAD 110 GIZZARD SHAD 126 GIZZARD SHAD GIZZARD SHAD 14a GIZZARD SHAD 115 GIZZARD SHAD 115 GIZZARD SHAD IIr GIZZARD SHAD 107 GIZZARD SHAD 112 GIZZARD SHAD 116 GIZZARD SHAD 116 GIZZARD SHAD 107 GIZZARD SHAD 124 GIZZARD SHAD 106 GIZZARD SHAD 120 GIZZARD SHAD 83 GIZZARD SHAD 102 GIZZARD SHAD 108 GIZZARD SHAD GIZZARD SHAD 136 GIZZARD SHAD 98 GIZZARD SHAD 91 GIZZARD SHAD B8 GIZZARD SHAD 91 GIZZARD SHAD 84 GIZZARD SHAD 75 GIZZARD SHAD 89 GIZZARD SHAD 76 GIZZARD SHAD G0 ROSYFACE SHINER 62 SAND SHINER 71 MIMIC SHINER 52 BLUNTNOSE MINNOW 60 BLUNTNOSE MINNOW 92 BLUNTNOSE MINNOW 84 BLUNTNOSE MINNOW 81 20 BULLHEAD MINNOW 55 SHORTHEAD REDHORSE 122 SHORTHEAD REDHORSE 72 SHORTHEAD REDHORSE 71 SHORTHEAD REDHORSE 46 SHORTHEAD REDHORSE 69 SHORTHEAD REDHORSE 76 SHORTHEAD REDHORSE 72 SHORTHEAD REDHORSE 82 SHORTHEAD REDHORSE 72 SHORTHEAD REDHORSE 71 SHORTHEAD REDHORSE 62

G-38 198B-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH NEIGHT COUNT NEI6HT SHORTHEAD REDHORSE 64 5 SHORTHEAD REDHORSE 51 2 SHORTHEAD REDHORSE 35 1 BLACK BULLHEAD 113 17 BROOK SILVERSIDE 62 BROOK SILVERSIDE 76 BROOK SILVERSIDE 68 BROOK SILVERSIDE 78 BROOK SILVERSIDE 69 BROOK SILVERSIDE 81 BROOK SILVERSIDE 81 BROOK SILVERSIDE 72 BROOK SILVERSIDE 67 15 GREEN SUNFISH 135 60 GREEN SUNFISH 44 1 LONGEAR SUNFISH 85 10 LON6EAR SUNFISH 92 17 LONGEAR SUNFISH 70 6 LONGEAR SUNFISH 52 2 LON6EAR SUNFISH 48 1 LON6EAR SUNFISH 113 34 UNID LEPOMIS 32 1 UNID LEPOHIS 33 1 UNID LEPOMIS 40 1 UNID LEPOHIS 41 1 UNID LEPOMIS 42 1 UNID LEPONIS 42 1 UNID LEPONIS 38 I UNID LEPOMIS 36 I UNID LEPOMIS 35 1 UNID LEPOMIS 38 1 UNID LEPOMIS 31 1 UNID LEPONIS 33 1 SMALLMOU7H BASS 123 23 SMALLMOUTH BASS 105 14 SMALLHOUTH BASS 80 7 SMALLMOUTH BASS 84 6 SMALLMOUTH BASS 82 7 SMALLMOUTH BASS 78 7 SMALLMDUTH BASS 102 12 LARGEMOUTH BASS 128 26 BLACKSIDE DARTER 70 4 DATE: 23JAN89 GIZZARD SHAD 4Q 400 6IZZARD SHAD 8i 61ZZARD SHAD 124 17 GIZZARD SHAD 106 6 GIZZARD SHAD 114 12 GIZZARD SHAD 107 9 GIZZARD SHAD 106 GIZZARD SHAD 115 13 GIZZARD SHAD 130 17 61ZZARD SHAD 110 10 GIZZARD SHAD I11 1I GIZZARD SHAD 181 50 GIZZARD SHAD 132 20 GIZZARD SHAD 135 21 GIZZARD SHAD 9B 6 GIZZARD SHAD 115 12 GIZZARD SHAD 115 12 GIZZARD SHAD 97 8 GIZZARD SHAD 123 15 GIZZARD SHAD 110 12 GIZZARD SHAD 110 11 GIZZARD SHAD 9t 4 6IZZARD SHAD 94 7 GIZZARD SHAD 114 13 GIZZARD SHAD III 10 6IZZARD SHAD 95 8

G-39 1998-59 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ------. ------..------...... ---.... GIZZARD SHAD 105 10 GIZZARD SHAD 95 8 61ZZARD SHAD 92 7 GIZZARD SHAD 95 7 NORNYHEAD CHUB 92 HORNYHEAD CHUB 91 HORNYHEAD CHUB 90 HORNYHEAD CHUB 83 HORNYHEAD CHUB 99 40 GOLDEN SHINER 93 GOLDEN SHINER 107 17 SPOTFIN SHINER 84 5 SAND SHINER 72 3 MIMIC SHINER 50 2 FATHEAD MINNOW 65 3 BULLHEAD MINNOW 73 BULLHEAD MINNOW 71 QUILLBACK 348 380 SILVER REDHORSE 115 18 SILVER REDHORSE 114 18 GOLDEN REDHORSE 61 2 SHORTHEAD REDHORSE 61 2 BLACK BULLHEAD 113 21 BROOK SILVERSIDE 72 2 ROCK BASS 77 P0 ROCK BASS 90 16 ROCK BASS 62 4 ROCK BASS 72 7 ROCK BASS 62 5 ROCK BASS 46 2 ROCK BASS 47 2 ROCK BASS 73 6 ROCK BASS 60 4 ROCK BASS 66 5 ROCK BASS 66 5 ROCK BASS 52 3 ROCK BASS 95 17 ROCK BASS 56 3 ROCK BASS 52 2 ROCK BASS 57 3 ROCK BASS 63 5 ROCK BASS 100 18 ROCK BASS Gd) 11 ROCK BASS B6 10 ROCK BASS 67 5 ROCK BASS 67 5 ROCK BASS 77 7 ROCK BASS 68 5 ROCK BASS 75 8 ROCK BASS 71 7 ROCK BASS 60 4 ROCK BASS 75 B ROCK BASS 62 4 ROCK BASS 5B 3 ROCK BASS 28 140 GREEN SUNFISH 85 12 GREEN SUNFISH 100 17 GREEN SUNFISH 102 22 BLUEGILL 65 4 BLUEGILL BB 12 BLUE61LL 60 3 LONGEAR SUNFISH 84 13 LONGEAR SUNFISH 106 28 LON6EAR SUNFISH 87 15 LONGEAR SUNFISH 104 23 LONGEAR SUNFISH 49 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 48 I LON6EAR SUNFISH 42 1

G-40 1998-99 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT - - EAR- --SU...... IS.....IS- .. ..- 4...... --. ------LONGEAR SUNFISH 4133 1I SNALLMOUTH BASS 95 t0 SMALLMOUTH BASS 84 6 SNALLMOUTH BASS 66 4 SMALLMOUTH BASS li 15 SNALLMOUTH BASS 110 16 SMALLNOUTH BASS 144 34 SMALLMOUTH BASS 87 7 .SMALLMOUTH BASS 92 7 SNALLMOUTH BASS 90 8 SMAILMOUTH BASS 91 10 SMALLMOUTH BASS 70 5 SMALLHOUTH BASS 87 B SMALLMOUTH BASS 101 13 SMALLMOUTH BASS 120 19 SMALLMOUTH BASS 111 16 SMALLMOUTH BASS 109 13 SMALLMOUTH BASS 118 17 SMALLMOUTH BASS 103 13 SMALLMOUTH BASS I11 17 SMALLMOUIH BASS 105 16 SNALLMOUTH BASS 60 2 SMALLMOUTH BASS 75 5 WHITE CRAPPIE 203 130 BLACK CRAPPIE 75 5 BLACK CRAPPIE 10') 12 BLACK CRAPPIE 124 200 DATE: 24JAN89

GIZZARD SHAD 750" GIZZARD SHAD 112 GIZZARD SHAD 135= 21 GIZZARD SHAD 102 9 6IZZARD SHAD 146 26 GIZZARD SHAD 103 9 GIZZARD SHAD 117 i5 6IZZARD SHAD 121 15 6ZZARD SHAD 112 12 6IZZARD SHAD 113 12 6IZZARD SHAD 107 11 GIZZARD SHAD 122 17 GIZZARD SHAD 82 5 6IZZARD SHAD 116 15 GIZZARD SHAD 110 12 6IZZARD SHAD 129 20 6IZZARD SHAD 115 14 GIZZARD SHAD 140 24 6IZZARD SHAD 114 13 GIZZARD SHAD 90 7 6IZZARD SHAD 110 12 GIZZARD SHAD 106 12 GIZZARD SHAD 128 20 GIZZARD SHAD 112 12 GIZZARD SHAD 129 21 6IZZARD SHAD 135 21 GIZZARD SHAD 106 9 6IZZARD SHAD 132 17 6IZZARD SHAD IOB 11 GIZZARD SHAD 88 7 GIZZARD SHAD 73 4 ROSYFACE SHINER 59 2 MIMIC SHINER 60 MIMIC SHINER 52 MIMIC SHINER 62 3 FATHEAD MINNOW 63 BULLHEAD MINNOW 65 BULLHEAD MINNOW 57 BULLHEAD MINNOW 72 BULLHEAD MINNOW 66

G-41 19iB-89 BRAIDWOOD STATION IMPINGEMENT STUDY m • ...... ------...----... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEI6HT BULLHEAD MINNOW 60 BULLHEAD MINNOW 38 15 SHORIHEAD REDHORSE 119 16 STONECAT 119 16 ROCK BASS 66 6 ROCK BASS 69 6 ROCK BASS 66 5 ROCK BASS 81 12 ROCK BASS 101 21 ROCK BASS 60 5 ROCK BASS 82 10 ROCK BASS 61 5 ROCK BASS 63 5 ROCK BASS 62 5 ROCK BASS 64 5 ROCK BASS 59 4 ROCK BASS 56 4 GREEN SUNFISH 36 1 BLUEGILL 46 1 LONSEAR SUNFISH 90 15 LONGEAR SUNFISH 102 25 LONBEAR SUNFISH 41 1 LONGEAR SUNFISH 37 I SNALLMOUTH BASS 116 19 SMALLMOUTH BASS 107 15 SMALLMOUTH BASS 71 5 SMALLMOUTH BASS 82 6 LARGEMOUTH BASS 106 16 BLACK CRAPPIE 103 13 DATE: 25JAN89 GIZARD SHAD 7001 GIZZARD SHAD 16i 6IZZARD SHAD 115 GIZZARD SHAD 125 GIZZARD SHAD 165 GIZZARD SHAD 151 GIZZARD SHAD 141 GIZZARD SHAD 130 107 GIZZARD SHAD 131 GIZZARD SHAD 6IZZARD SHAD 122 GIZZARD SHAD 135 GIZZARD SHAD 131 GIZZARD SHAD 95 GIZZARD SHAD 104 GIZZARD SHAD 109 GIZZARD SHAD 114 6IZZARD SHAD 99 GIZZARD SHAD 100 6IZZARD SHAD 109 GIZZARD SHAD 87 GIZZARD SHAD 71 GIZZARD SHAD 74 6IZZARD SHAD 107 GIZZARD SHAD 142 6IZZARD SHAD 108 6ZZARD SHAD I10 61ZZARD SHAD 112 GIZZARD SHAD 117 6IZZARD SHAD 100 GIZZARD SHAD 102 GOLDEN SHINER 92 STRIPED SHINER 101 STRIPED SHINER 63 ROSYFACE SHINER 52 BLUNTNOSE MINNOW 61 BLUNTNDSE MINNOW 91 FATHEAD MINNOW 64 BULLHEAD MINNOW 69

G-42 1988-09 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT OUILLBACK lot 12 STONECAT 125 20 BROOK SILVERSIDE 68 BROOK SILVERSIDE 71 ROCK BASS 43 1 ROCK BASS 71 6 ROCK BASS 58 4 ROCK BASS 59 4 ROCK BASS 61 5 ROCK BASS 66 6 ROCK BASS 66 7 ROCK BASS 55 4 ROCK BASS 65 6 ROCK BASS 62 4 ROCK BASS 50 3 ROCK BASS 46 2 ROCK BASS 52 3 ROCK BASS 54 3 ROCK BASS 55 3 ROCK BASS 44 2 ROCK BASS 43 1 GREEN SUNFISH 41 1 BLUEGILL 113 37 BLUEGILL 61 4 LONGEAR SUNFISH 60 4 LONBEAR SUNFISH 57 4 LONGEAR SUNFISH 63 5 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 38 1 LONBEAR SUNFISH 41 1 LONGEAR SUNFISH 42 1 SMALLNDUIH BASS 77 5 SNALLNOUTH BASS 105 13 WHITE CRAPPIE 57 2 BLACKSIDE DARTER 56 2 DATE: 30JANB9 GIZZARD SHAD 130 20 GIZZARD SHAD 106 10 GIZZARD SHAD 134 20 gIZZARD SHAD III 14 GIZZARD SHAD 97 B GIZZARD SHAD 121 18 gIZZARD SHAD 105 12 GIZZARD SHAD 122 17 GIZZARD SHAD 115 14 GIZZARD SHAD 98 7 GIZZARD SHAD 158 33 gIZZARD SHAD 22 17 gIZZARD SHAD 102 10 GIZZARD SHAD 97 9 GIZZARD SHAD 91 7 GIZZARD SHAD 105 I1 GIZZARD SHAD 142 25 GIZZARD SHAD 126 19 GIZZARD SHAD 110 13 GIZZARD SHAD 120 17 gIZZARD SHAD 82 5 gIZZARD SHAD 112 13 GIZZARD SHAD 98 8 GIZZARD SHAD 100 9 gIZZARD SHAD el 5 ROSYFACE SHINER 62 1 NIMIC SHINER 55 2 SHORTHEAD REDHORSE 97 ROCK BASS 87 13 ROCK BASS 70 7 ROCK BASS 64 4 ROCK BASS 64 5 ROCK BASS 53 4

r.- 4 1989-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 48 2 ROCK BASS 56 4 GREEN SUNFISH 92 15 ORANGESPOTTED SUNFISH 90 15 BLUEGILL 86 12 BLUEGILL 92 16 BLUE6ILL 88 I1 BLUEGILL 58 3 BLUEGILL 35 I LONSEAR SUNFISH 92 17 SNALLMOUTH BASS 80 6 SMALLNDUTH BASS 90 8 SMALLMOUTH BASS 85 8 LARGEMOUTH BASS 90 10 WHITE CRAPPIE 233 180 BLACK CRAPPIE 105 15 BLACK CRAPPIE 130 28 BLACK CRAPPIE 113 20 DATE: 31JAN89 GIZZARD SHAD 141 24 500 GIZZARD SHAD 120 16 GIZZARD SHAD 13t 21 GIZZARD SHAD 123 17 GIZZARD SHAD 127 18 107 I1 GIZZARD SHAD II GIZZARD SHAD 110 GIZZARD SHAD 134 20 GIZZARD SHAD 124 17 GIZZARD SHAD 127 19 GIZZARD SHAD 131 20 GIZZARD SHAD 166 40 61ZZARD SHAD 127 19 GIZZARD SHAD 136 23 GIZZARD SHAD 133 I1 GIZZARD SHAD 112 12 GIZZARD SHAD 96 9 GIZZARD SHAD 112 12 110 13 GIZZARD SHAD 12 GIZZARD SHAD 115 10 GIZZARD SHAD 106 GIZZARD SHAD 126 19 I17 14 6IZZARD SHAD 13 GIZZARD SHAD 116 9 GIZZARD SHAD 104 83 4 GIZZARD SHAD 14 GIZZARD SHAD 122 GIZZARD SHAD 133 23 GIZZARD SHAD 127 17 GIZZARD SHAD 100 10 GIZZARD SHAD 107 9 BLUNTNOSE MINNOW 89 6 FATHEAD MINNOW 65 2 BULLHEAD MINNOW 57 BULLHEAD MINNOW 64 CHANNEL CATFISH 59 2 ROCK BASS 50 2 ROCK BASS 55 4 ROCK BASS 73 7 ROCK BASS 66 3 ROCK BASS 57 3 55 3 ROCK BASS 3 ROCK BASS 55 ROCK BASS 46 2 ROCK BASS 52 2 ROCK BASS 42 LON6EAR SUNFISH 133 50 LONGEAR SUNFISH 122 41 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 41 1

fA R 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEI6HT SNALLMOUTH BASS 91 6 DATE: OIFEB89 GIZZARD SHAD 4B 700 GIZZARD SHAD 18i 60 GIZZARD SHAD 99 9 GIZZARD SHAD 94 8 GIZZARD SHAD 117 I5 GIZZARD SHAD 110 13 GIZZARD SHAD 1o0 8 GIZZARD SHAD 143 25 GIZZARD SHAD 157 32 GIZZARD SHAD 102 9 GIZZARD SHAD 123 15 GIZZARD SHAD 90 6 GIZZARD SHAD 107 12 GIZZARD SHAD lo 10 GIZZARD SHAD I12 12 GIZZARD SHAD 12( 16 GIZZARD SHAD 105 11 6IZZARD SHAD 114 13 GIZZARD SHAD 90 7 GIZZARD SHAD 107 to GIZZARD SHAD GO 5 GIZZARD SHAD 103 t0 GIZZARD SHAD 122 16 GIZZARD SHAD 106 II GIZZARD SHAD B7 7 GIZZARD SHAD 122 17 GIZZARD SHAD S7 a GIZZARD SHAD 102 to GIZZARD SHAD 81 5 GIZZARD SHAD 81 5 GIZZARD SHAD 96 8 ROSYFACE SHINER 57 1 SPOTFIN SHINER 66 3 MIMIC SHINER 59 MIMIC SHINER 52 MIMIC SHINER 57 4 BLUNTNOSE MINNOW 77 BLUNTNOSE MINNOW 82 FATHEAD MINNOW 63 BULLHEAD MINNOW 65 3 STONECAT 141 27 BROOK SILVERSIDE 75 2 ROCK BASS 261 420 ROCK BASS 185 120 ROCK BASS 89 12 ROCK BASS 72 9 ROCK BASS 71 7 ROCK BASS 74 7 ROCK BASS 60 5 ROCK BASS 63 6 ROCK BASS 67 6 ROCK BASS 58 4 ROCK BASS 68 6 ROCK BASS 57 4 ROCK BASS 54 4 ROCK BASS 43 2 ROCK BASS 36 1 ROCK BASS 53 3 ROCK BASS 53 3 ROCK BASS 52 3 GREEN SUNFISH 42 2 GREEN SUNFISH 40 I BLUEGILL 56 3 BLUEGILL 55 3 LONGEAR SUNFISH 53 4 LONGEAR SUNFISH 55 4 LONGEAR SUNFISH 40 1

G-45 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY

PLUS BATCH 3PECIES LENGTH WEIGHT COUNT WEIGHT LONGEAR SUNFISH 42 I LONGEAR SUNFISH 36 1 LONGEAR SUNFISH 36 1 SNALLNOUTH BASS 101 12 SNALLMOUTH BASS 82 7 SNALLMOUTH BASS 80 6 SNALLMOUTH BASS 90 6 SMALLHOUTH BASS 101 13 SNALLOUTH BASS 81 6 SMALLMDUTH BASS I10 15 SNALLNOUTH BASS 104 13 SNALLNOUTH BASS 110 13 SNALLMOUTH BASS 82 7 SNALLNOUTH BASS B1 7 WHITE CRAPPIE 43 1 LO6PERCH 80 4 LOGPEfRCH 77 4 BLACKSIDE DARTER 76 5 BLACKSIDE DARTER 62 3 BLACKSIDE DARTER 62 3 BLACKSIDE DARTER 66 3 BLACKSIDE DARTER 70 3 DATE: 07FEB89 GIZZARD SHAD 250 5150 GIZZARD SHAD 242 460 GIZZARD SHAD 242 420 GIZZARD SHAD 306 310 GIZZARD SHAD 30)7 310 GIZZARD SHAD 322 330 GIZZARD SHAD 132 22 GIZZARD SHAD 125 17 GIZZARD SHAD 129 23 6IZZARD SHAD 152 36 GIZZARD SHAD 21B 110 61ZZARD SHAD 107 10 GIZZARD SHAD 116 15 GIZZARD SHAD 115 15 GIZZARD SHAD 133 21 6ZZARD SHAD 136 22 SIZZARD SHAD 92 7 GIZZARD SHAD 116 16 GIZZARD SHAD 117 15 GIZZARD SHAD 149 32 GIZZARD SHAD 107 13 GIZZARD SHAD 119 15 GIZZARD SHAD 136 27 GIZZARD SHAD 115 15 GIZZARD SHAD 122 17 GIZZARD SHAD 115 15 GIZZARD SHAD 116 15 GIZZARD SHAD O10 13 6ZZARD SHAD 150 32 6ZZARD SHAD 130 21 6IZZARD SHAD 125 18 GOLDEN SHINER 03 GOLDEN SHINER 134 30 ROSYFACE SHINER 60 ROSYFACE SHINER 51 ROSYFACE SHINER 57 ROSYFACE SHINER 60 ROSYFACE SHINER 57 ROSYFACE SHINER 57 ROSYFACE SHINER 57 ROSYFACE SHINER 57 ROSYFACE SHINER 60 ROSYFACE SHINER 57 ROSYFACE SHINER 57 RDSYFACE SHINER 62 ROSYFACE SHINER 62 1980-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROSYFACE SHINER 61 ROSYFACE SHINER 52 2i SAND SHINER 57 2 MIMIC SHINER 51 1 BLUNTNOSE MINNOW 77 BLUNTNOSE MINNOW 66 FATHEAD MINNOW 71 FATHEAD MINNOW 57 BULLHEAD MINNOW 67 BULLHEAD MINNOW 57 NORTHERN HOG SUCKER 125 22 SNALLHOUTH BUFFALO 117 24 SMALLMOUTH BUFFALO 169 70 SILVER REDHORSE 91 10 SILVER REDHORSE 120 23 SILVER REDHORSE 124 25 SILVER REDHORSE 119 22 SILVER REDHORSE 114 20 SILVER REDHORSE 122 22 SILVER REDHORSE 93 10 SILVER REDHORSE 107 15 SILVER REDHORSE 103 13 SILVER REDHORSE 115 19 SILVER REDHORSE 103 13 SILVER REDHORSE 113 20 SILVER REDHORSE 217 20 SILVER REDHORSE 103 13 SILVER REDHORSE 100 13 GOLDEN REDHORSE al 5 GOLDEN REDHORSE 95 10 SHORTHEAD REDHORSE 112 25 SHORIHEAD REDHORSE 107 12 SHORTHEAD REDHORSE 125 21 SHORTHEAD REDHORSE 2t71 20 SHORTHEAD REDHORSE 110 14 SHORTHEAD REDHORSE 110 13 SHORTHEAD REDHORSE 114 16 SHOR1HEAD REDHORSE 120 13 SHORTHEAD REDHORSE 306 12 SHORIHEAD REDHORSE 117 17 SHORTHEAD REDHORSE 112 16 SHORTHEAD REDHORSE 101 11 SHORTHEAD REDHORSE 103 12 BLACK BULLHEAD 112 17 YELLOW BULLHEAD 104 15 BROOK SILVERSIDE 76 BROOK SILVERSIDE 67 BROOK SILVERSIDE 76 BROOK SILVERSIDE 92 BROOK SILVERSIDE 61 BROOK SILVERSIDE 77 10 ROCK BASS 94 1i ROCK BASS 77 10 ROCK BASS 62 12 ROCK BASS 112 27 ROCK BASS 67 7 ROCK BASS 78 12 ROCK BASS 82 6 ROCK BASS 71 8 ROCK BASS 74 8 ROCK BASS 65 7 ROCK BASS 65 13 ROCK BASS 73 8 ROCK BASS 57 5 ROCK BASS 69 6 ROCK BASS 60 5 ROCK BASS 62 6 ROCK BASS 86 14 ROCK BASS 65 7 ROCK BASS 71 7 ROCK BASS 79 9

G-47 198B-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT IROCK BASS 62 5 ROCk BASS 67 6 ROCK BASS 82 12 ROCK BASS 73 7 ROCK BASS 75 8 ROCK BASS 64 6 ROCK BASS 69 6 ROCK BASS 70 7 ROCK BASS 75 8 ROCK BASS 20 GREEN SUNFISH 134 65 GREEN SUNFISH 118 35 GREEN SUNFISH 157 Ito GREEN SUNFISH 47 2 ORANGESPOTTED SUNFISH 82 14 BLUEGILL 162 110 LONGEAR SUNFISH 43 2 LONGEAR SUNFISH 45 2 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 35 1 LONGEAR SUNFISH 37 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 37 1 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 39 1 LONGEAR SUNFISH 131 55 LONGEAR SUNFISH 35 1 LONGEAR SUNFISH 92 20 LONGEAR SUNFISH 110 27 LONGEAR SUNFISH e2 13 LONGEAR SUNFISH 96 23 LONGEAR SUNFISH 91 20 LONGEAR SUNFISH 92 19 LONGEAR SUNFISH 107 33 SMALLMOUTH BASS 122 22 SNALLMOUTH BASS 118 20 SMALLMOUTH BASS 106 15 SMALLMOUTH BASS 114 14 SMALLBOUTH BASS 124 22 SNALLNOUTH BASS 131 27 SNALLBOUTH BASS 96 10 SNALLBOUTH BASS 106 16 SNALLOUTH BASS 95 85 SNALLNOUTH BASS 92 7 SNALLNOUTH BASS 122 18 SNAILNOUTH BASS 136 34 SNALLNOUTH BASS 106 14 SNALLNOUTH BASS 93 10 SNALLNOUTH BASS 92 7 SNALLMOUTH BASS 110 17 SNALLOUTH BASS 115 17 SMALLOUTH BASS 130 33 SNALLOUTH BASS 77 7 SNALLNOUTH BASS 88 10 SNALLOUTH BASS 96 13 SNALLNOUTH BASS 66 6 SNALLOUTH BASS 103 14 SNALLNOUTH BASS 62 3 LARGENOUTH BASS 122 25 BLACK CRAPPIE 222 220 BLACK CRAPPIE 131 35 BLACK CRAPPIE 91 20 BLACK CRAPPIE 61 7 BLACK CRAPPIE 92 12 BLACKSIDE DARTER 70 4 FRESHWATER DRUM 232 160 DATE: 13FEB89 GIZZARD SHAD 34 1100

G-48 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT GIZZARD SHAD 375 470 GIZZARD SHAD 331 355 GIZZARD SHAD 347 430 GIZZARD SHAD 320 355 GIZZARD SHAD 317 320 GIZZARD SHAD 341 370 GIZZARD SHAD 319 310 GIZZARD SHAD 320 300 61ZZARD SHAD 122 17 GIZZARD SHAD 139 26 GIZZARD SHAD 128 22 GIZZARD SHAD 124 20 GIZZARD SHAD 136 26 GIZZARD SHAD 140 29 GIZZARD SHAD 128 23 GIZZARD SHAD 149 30 GIZZARD SHAD 155 35 GIZZARD SHAD 145 31 GIZZARD SHAD 147 30 6IZZARD SHAD 122 20 GIZZARD SHAD 117 16 6IZZARD SHAD 120 17 GIZZARD SHAD 137 25 GIZZARD SHAD 153 3B GIZZARD SHAD 192 65 GIZZARD SHAD 145 30 GIZZARD SHAD 147 31 GIZZARD SHAD 122 19 GIZZARD SHAD 120 19 COMMON CARP 262 280 GOLDEN SHINER 85 5 ROSYFACE SHINER 61 ROSYFACE SHINER 71) SPOIFIN SHINER 70 MIMIC SHINER 58 MIMIC SHINER 45 MIMIC SHINER 50 MIMIC SHINER 51 BLUNTNOSE MINNOW 61 2 SMALLMOUTH BUFFALO 136 33 SILVER REDHORSE 141 40 SILVER REDHORSE 126 25 SILVER REDHORSE 123 23 SILVER REDHORSE 98 13 SILVER REDHORSE 103 12 SILVER REDHORSE 113 17 SILVER REDHORSE 116 21 SILVER REDHORSE 107 17 SILVER REDHORSE 103 13 SILVER REDHORSE 116 21 SILVER REDHORSE 115 20 SILVER REDHORSE 103 12 SILVER REDHORSE 91 8 SILVER REDHORSE 93 10 GOLDEN REDHORSE 81 6 SHORTHEAD REDHORSE 122 21 UNID MOXOSTOMA 57 2 BLACK BULLHEAD 101 12 STONECAT 149 30 BROOK SILVERSIDE 91 BROOK SILVERSIDE 70 BROOK SILVERSIDE 62 5 ROCK BASS 71 a ROCK BASS 73 9 ROCK BASS 54 3 ROCK BASS 70 6 ROCK BASS 70 7 ROCK BASS of 11 ROCK BASS 77 10 ROCK BASS 63 5 ROCK BASS 45 2

G-49 1988-B9 BRAIDWOOD STATION INPINSEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 64 5 ROCK BASS 73 9 ROCK BASS 76 9 ROCK BASS 63 5 ROCK BASS 40 1 ROCK BASS 71 7 ROCK BASS 62 5 ROCK BASS 84 13 ROCK BASS 86 13 ROCK BASS 51 4 ROCK BASS 83 12 ROCK BASS 71 6 ROCK BASS 54 3 ROCK BASS 67 5 ROCK BASS 75 6 ROCK BASS 55 3 ROCK BASS 63 4 ROCK BASS 64 4 ROCK BASS 37 I ROCK BASS 61 4 ROCK BASS Ii 65 ORANGESPOTTED SUNFISH 78 li LONGEAR SUNFISH 110 34 LONBEAR SUNFISH 121 45 LONGEAR SUNFISH I00 22 LONGEAR SUNFISH 91 16 LONGEAR SUNFISH 4' I LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 42 2 SNALLMOUTH BASS 117 20 SNALLMOUTH BASS 92 9 SMALLMOUTH BASS 117 22 SMALLMOUTH BASS 121 20 SMALLMOUTH BASS 113 17 SMALLMOUTH BASS 103 13 SMALLMOUTH BASS 87 9 SMALLMOUTH BASS 82 7 SMALLMOUTH BASS BI 6 SMALLMOUTH BASS 91 9 LOBPERCH 82 5 FRESHWATER DRUM 216 125 DATE: 14FEBB9 GIZZARD SHAD 350 440 GIZZARD SHAD 341 415 6IZZARD SHAD 163 40 GIZZARD SHAD 103 9 COMMON CARP 195 130 ROSYFACE SHINER 57 1 SPOTFIN SHINER 77 4 MIMIC SHINER 56 1 BULLHEAD MINNOW 75 5 NORTHERN HOG SUCKER 124 23 SILVER REDHORSE 122 22 SILVER REDHORSE I01 12 SILVER REDHORSE 116 18 6OLDEN REDHORSE 94 9 SHORTHEAD REDHORSE 110 14 SHORTHEAD REDHORSE 106 14 SHORTHEAD REDHORSE 105 12 SHORTHEAD REDHORSE 125 20 SHORTHEAD REDHORSE 120 17 BROOK SILVERSIDE 96 3 BROOK SILVERSIDE 82 2 ROCK BASS 83 13 ROCK BASS 77 10 ROCK BASS 75 12 ROCK BASS 67 6 ROCK BASS aI I0 ROCK BASS 6i 5 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROC- A--S ------4 ------ROCK BASS 6159 4 ROCK BASS 46 2 ROCK BASS 51 3 LONGEAR SUNFISH 42 2 LON6EAR SUNFISH 43 2 LONGEAR SUNFISH 44 2 SHALLOUTH BASS 74 5 SNALLOUTH BASS 162 50 SNALLMOUTH BASS 108 12 SKALNOUTH BASS 104 13 SKALLNOUTH BASS 93 10 DATE: 15FEB89 GIZZARD SHAD 313 300 GIZZARD SHAD 298 260 GIZZARD SHAD 121 16 GIZZARD SHAD 153 33 GOLDEN SHINER 94 7 ROSYFACE SHINER 60 ROSYFACE SHINER 55 ROSYFACE SHINER 6' ROSYFACE SHINER 61 ROSYFACE SHINER 61 ROSYFACE SHINER 55 MIMIC SHINER 51 BLUNTNOSE MINNOW 8I 5 SILVER REDHORSE 103 13 SILVER REDHORSE 125 23 SILVER REDHORSE 99 1I SHORTHEAD REDHORSE 122 18 SHORTHEAD REDHORSE 140 30 BROOK SILVERSIDE 71 BROOK SILVERSIDE 73 ROCC BASS 59 4 ROCt BASS 74 ROCK BASS 64 5 ROCK BASS 65 6 ROCK BASS 44 ORANGESPOTTED SUNFISH 78 LONGEAR SUNFISH 41 LONGEAR SUNFISH 36 LONGEAR SUNFISH 36 SHALINOUTH BASS 230 10 SMALLMOUTH BASS 18i SHALLMOUTH BASS 107 15Is SMALLNOUTH BASS 91 SMALIMOUTH BASS 83 SNALLNOUTH BASS 64 10 SNALINOUTH BASS 105 38o SHALINOUTH BASS 93 240 DATE: 20FEB89 GIZZARD SHAD 297 GIZZARD SHAD 292 GIZZARD SHAD 153 260 GIZZARD SHAD 136 24025 GIZZARD SHAD 139 GIZZARD SHAD 143 GIZZARD SHAD 139 25 GIZZARD SHAD 139 61ZZARD SHAD 152 34 6IZZARD SHAD 143 30 GIZZARD SHAD 142 30 GIZZARD SHAD 178 46 GIZZARD SHAD 126 20 GIZZARD SHAD 140 25 6IZZARD SHAD 145 34 GIZZARD SHAD 148 29

G-51 I9SB-B9 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT 6IZZARD SHAD 140 30 61ZZARD SHAD 13B 27 GIZZARD SHAD 124 20 6IZZARD SHAD 126 20 ROSYFACE SHINER 58 ROSYFACE SHINER 52 ROSYFACE SHINER 67 ROSYFACE SHINER 60 ROSYFACE SHINER 62 ROSYFACE SHINER 61 ROSYFACE SHINER 64 ROSYFACE SHINER 54 ROSYFACE SHINER 58 RDSYFACE SHINER 55 ROSYFACE SHINER 61 ROSYFACE SHINER 57 ROSYFACE SHINER 64 ROSYFACE SHINER 54 ROSYFACE SHINER 53 ROSYFACE SHINER 60 ROSYFACE SHINER 59 ROSYFACE SHINER 58 ROSYFACE SHINER 52 ROSYFACE SHINER 58 ROSYFACE SHINER 53 ROSYFACE SHINER 5B ROSYFACE SHINER 54 ROSYFACE SHINER 60 ROSYFACE SHINER 55 ROSYFACE SHINER So ROSYFACE SHINER 54 ROSYFACE SHINER 56 ROSYFACE SHINER 59 ROSYFACE SHINER 62 39 SPOTFIN SHINER 6i 2 MIMIC SHINER 51 MIMIC SHINER 56 BLUNTNOSE MINNOW BLUNTNOSE MINNOW 65 BLUNTNOSE MINNOW 74 BLUNTNOSE MINNOW 70 BLUNTNOSE MINNOW 63 19 BULLHEAD MINNOW 71 BULLHEAD MINNOW 66 NORTHERN HOG SUCKER 112 15 SILVER REDHORSE 113 17 SILVER REDHORSE 133 27 SILVER REDHORSE 110 17 SILVER REDHORSE 84 7 SILVER REDHORSE 131 31 SILVER REDHORSE 136 31 SILVER REDHORSE 99 11 SHORTHEAD REDHORSE 122 17 SHORTHEAD REDHORSE 136 27 SHORTHEAD REDHORSE 113 15 SHORTHEAD REDHORSE 97 9 SHORTHEAD REDHORSE 113 16 SHORTHEAD REDHORSE 104 11 SHlRTHEAD REDHORSE 76 5 SHORTHEAD REDHORSE 122 20 SHORTHEAD REDHORSE 92 9 CHANNEL CATFISH 72 4 CHANNEL CATFISH 78 4 BROOK SILVERSIDE 69 BROOK SILVERSIDE 76 BROOK SILVERSIDE 77 BROOK SILVERSIDE 72 BROOK SILVERSIDE 76 9 ROCK BASS 66 7 ROCK BASS 58 5 ROCK BASS 67 7 "

G-52 1988-89 BRAIDNOOD STATION IMPIN6EMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 61 5 ROCK BASS 76 10 ROCK BASS 76 tO ROCK BASS 67 7 ROCK BASS 160 90 ROCK BASS 74 9 ROCK BASS 96 19 ROCK BASS 77 11 ROCK BASS 67 8 .ROCK BASS 70 7 ROCK BASS 63 7 ROCK BASS so 11 ROCK BASS 62 6 ROCK BASS 75 10 ROCK BASS 66 6 ROCK BASS 60 6 ROCK BASS 65 6 ROCK BASS 67 7 ROCK BASS 68 7 ROCK BASS 67 7 ROCK BASS 60 5 ROCK BASS 47 3 ROCK BASS 48 3 ROCK BASS 63 7 ROCK BASS 56 5 ROCK BASS 53 4 ROCK BASS 14 51 LONGEAR SUNFISH 56 3 LONGEAR SUNFISH 40 1 LONBEAR SUNFISH 32 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 42 2 SHALLMOUTH BASS 143 38 SNALLOUTH BASS 122 27 SNALLHOUTH BASS 84 7 SMALLNOUTH BASS 83 7 SMALLNOUTH BASS 82 6 SNALLNOUTH BASS 86 8 SHALLMOUTH BASS 98 12 SNALLNOUTH BASS 105 15 SHAILNOUTH BASS 98 II SMALLDOUTH BASS 71 4 BLACK CRAPPIE 210 160 BLACKSIDE DARTER 82 7 DATE: 21FEB89 GIZZARD SHAD 147 29 GIZZARD SHAD 155 39 GIZZARD SHAD 72 3 GOLDEN SHINER 91 GOLDEN SHINER 92 ROSYFACE SHINER 56 ROSYFACE SHINER 57 ROSYFACE SHINER 61 3 SPOTFIN SHINER Sl63 BLUNTNOSE MINNOW 6 121 20 SILVER REDHORSE 108 SHORTHEAD REDHORSE 14 CHANNEL CATFISH 65 2 CHANNEL CATFISH 58 2 ROCK BASS 143 50 ROCK BASS 48 3 ROCK BASS 41 1 ROCK BASS 41 ROCK BASS 55 4 GREEN SUNFISH 123 40 LONEEAR SUNFISH 42 ! SNALLMOUTH BASS 103 12 SNALLNOUTH BASS 77 6 SNALLHOUTH BASS 116 19

G-53 19B8-B9 DRAIDWOOD STATION IMPINGEMENT STUDY

PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT SMALLNOUTH BASS 140 30 SNALLMOUTH BASS 92 13 SNALLMOUTH BASS 114 17 SNALLHOUTH BASS 94 12 SMALLMOUTH BASS 75 6 YELLOW PERCH 115 IB DATE: 22FEB89 GIZZARD SHAD 127 18 GIZZARD SHAD 163 44 30 GIZZARD SHAD 147 10 GOLDEN SHINER to0 STRIPED SHINER 57 ROSYFACE SHINER 62 ROSYFACE SHINER 61 ROSYFACE SHINER 55 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 53 ROSYFACE SHINER 61 ROSYFACE SHINER 56 ROSYFACE SHINER 53 ROSYFACE SHINER 54 ROSYFACE SHINER 57 ROSYFACE SHINER 60 ROSYFACE SHINER 58 ROSYFACE SHINER 51 ROSYFACE SHINER 5E ROSYFACE SHINER 56 ROSYFACE SHINER 58 ROSYFACE SHINER 56 ROSYFACE SHINER 57 ROSYFACE SHINEF 55 ROSYFACE SHINER 57 ROSYFACE SHINER 54 ROSVFACE SHINER •J', ROSYFACE SHINER 55 1 SPOTFIN SHINER BLUNTNOSE NINNOW 60 2 GOLDEN REDHORSE 80 CHANNEL CATFISH 56 BROOK SILVERSIDE 82 BROOK SILVERSIDE 77 BROOK SILVERSIDE 70 BROOK SILVERSIDE 63 BROOK SILVERSIDE 74 BROOK SILVERSIDE 75 BROOK SILVERSIDE 65 BROOK SILVERSIDE 75 77 BROOK SILVERSIDE 5 BROOK SILVERSIDE 59 BROOK SILVERSIDE aI BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 78 BROOK SILVERSIDE s0 BROOK SILVERSIDE 8o BROOK SILVERSIDE 77 BROOK SILVERSIDE 56 BROOK SILVERSIDE 63 BROOK SILVERSIDE 70 ROCK BASS 73 ! ROCK BASS 40 ROCK BASS t00 21 ROCK BASS 70 7 ROCK BASS 75 9 ROCK BASS 75 ROCK BASS 58 4 ROCK BASS 50 3 ORANGESPOTTED SUNFISH 74 7

^ rA 1988-99 IRAIDWOOD STATION IMPINGEMENT STUDY PlUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT SMALLMOUTH BASS 90 8 SNALLNOUTH BASS 99 10 JOHNNY DARTER 37 . BLACKSIDE DARTER 68 3 BLACKSIDE DARTER 71 3 DATE: 27FEB89 GIZZARD SHAD 140 22 ROSYFACE SHINER 51 ROSYFACE SHINER 52 ROSYFACE SHINER 53 BLUNTNOSE MINNOW 90 ILUNTNOSE MINNOW 80 BLUNTNOSE MINNOW 81 GUILLBACK 122 21 STONECAT 85 6 ROCK BASS 122 38 ROCK BASS 65 6 ROCK BASS 56 4 ROCK BASS 51 3 GREEN SUNFISH 120 32 LONGEAR SUNFISH 116 36 LONGEAR SUNFISH 41 SMALLMOUTH BASS 171 70 103 13 SMALLMOUTH BASS B SMALLMOUTH BASS 101 8 SMALLMOUTH BASS 102 SMALLMOUTH BASS 95 8 LARGEHOUTH BASS 160 60 DATE: 28FEBB9 GIZZARD SHAD 148 33 GOLDEN SHINER 77 4 STRIPED SHINER 66 3 ROSYFACE SHINER 57 1 ROCK BASS 71 6 98 22 ROCK BASS 5 ROCK BASS 63 ROCK BASS 67 ROCK BASS 77 10 SMALLMOUTH BASS 1I22 21 SMALLMOUTH BASS 205 12 SMALLMOUTH BASS 143 30 SNALLMOUTH BASS 113 26 SMALLMOUTH BASS 63 3 SMALLMOUTH BASS 96 11 DATE: 01AR89 GIZZARD SHAD 356 440 GIZZARD SHAD 104 8 6IZZARD SHAD 107 9 NORNYHEAD CHUB 96 10 NORNYHEAD CHUB 92 9 STRIPED SHINER 57 2 ROSYFACE SHINER 51 ROSYFACE SHINER 53 ROSYFACE SHINER 54 ROSYFACE SHINER 62 ROSYFACE SHINER 62 ROSYFACE SHINER 63 ROSYFACE SHINER 58 ROSYFACE SHINER 57 ROSYFACE SHINER 54 ROSYFACE SHINER 58 ROSYFACE SHINER 57 ROSYFACE SHINER 54 ROSYFACE SHINER 47 ROSYFACE SHINER 52 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT MIMIC SHINER 60 MIMIC SHINER 57 MIMIC SHINER 60 BULLHEAD MINNOW 66 BULLHEAD MINNOW 59 BULLHEAD MINNOW 60 BULLHEAD MINNOW 60 10 SHORTHEAD REDHORSE 65 2 BROOK SILVERSIDE 58 .BROOK SILVERSIDE 53 BROOK SILVERSIDE 64 BROOK SILVERSIDE 65 BROOK SILVERSIDE 72 BROOK SILVERSIDE 67 BROOK SILVERSIDE 81 9 ROCK BASS 72 5 ROCK BASS 75 9 ROCK BASS 71 7 ROCK BASS 57 4 ROCK BASS 75 9 ROCK BASS 74 7 ROCK BASS 61 4 ROCK BASS 56 4 ROCK BASS 47 2 ROCK BASS 52 3 ROCK BASS 56 4 ROCK BASS 59 5 ROCK BASS 56 4 ROCK BASS 57 4 ROCK BASS 51 3 ROCK BASS 49 2 ROCK BASS 49 3 ROCK BASS 49 2 ROCK BASS 43 2 ROCK BASS 41 1 ROCK BASS 44 1 ROCK BASS 34 1 ROCK BASS 35 1 ROCK BASS 43 I GREEN SUNFISH 3B I GREEN SUNFISH 36 1 BLUEGILL 65 4 BLUEGILL 59 3 BLUEGILL 51 1 BLUEGILL 42 1 BLUEGILL 45 1 BLUEGILL 44 I BLUE6ILL 36 1 LONGEAR SUNFISH 58 4 LONGEAR SUNFISH 60 5 LONGEAR SUNFISH 41 2 LONGEAR SUNFISH 36 1 LONBEAR SUNFISH 37 1 LONGEAR SUNFISH 31 1 SMALLMOUTH BASS 115 15 SNALLMOUTH BASS 101 12 SMALLOUTH BASS 82 6 WHITE CRAPPIE 50 1 BLACK CRAPPIE 84 7 BLACK CRAPPIE 67 4 BLACK CRAPPIE 45 I JOHNNY DARTER 42 1 L06PERCH 77 4 BLACKSIDE DARTER 69 4 DATE: 12APR89 61ZZARD SHAD 94 7 6IZZARD SHAD 126 18 GIZZARD SHAD 104 8 GIZZARD SHAD 95 6

G-77 1988-89 BRAIDWOOD STATION INPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GOLDEN SHINER 98 7 ROSYFACE SHINER 61 1 SPOTFIN SHINER 84 SPOTFIN SHINER 63 SPOTFIN SHINER 62 SPOTFIN SHINER 61 SPOTFIN SHINER 65 SPOTFIN SHINER 67 SPOTFIN SHINER 60 29 MIMIC SHINER 62 MIMIC SHINER 49 BULLHEAD MINNOW 58 2 BROOK SILVERSIDE 62 BROOK SILVERSIDE 62 BROOK SILVERSIDE 71 ROCK BASS 62 11 ROCK BASS 81 7 ROCK BASS 79 20 ROCK BASS 67 7 ROCK BASS 65 6 ROCK BASS 77 7 ROCK BASS 63 5 ROCK BASS 62 5 ROCK BASS 59 4 ROCK BASS 55 3 ROCK BASS 53 3 ROCK BASS 58 4 ROCK BASS 53 3 ROCK BASS 50 2 ROCI BASS 47 2 ROCK BASS 39 1 ROCK BASS 39 1 ORANGESPOTTED SUNFISH 103 27 ORANGESPOTTED SUNFISH 76 9 ORANGESPOTTED'SUNFISH 45 2 ORANGESPOTTED SUNFISH 42 1 ORANGESPOTTED SUNFISH 43 I BLUEGILL 62 4 BLUEGILL 64 5 BLUEGILL 55 3 BLUEGILL 53 2 BLUEGILL 48 2 BLUEGILL 57 3 BLUEGILL 47 2 BLUEGILL 35 ! LONGEAR SUNFISH 70 7 LONGEAR SUNFISH 55 4 LONGEAR SUNFISH 58 4 LONGEAR SUNFISH 44 2 SMALLMOUTH BASS Be B BLACK CRAPPIE 85 a BLACK CRAPPIE 101 12 DATE: l1APR89 GIZZARD SHAD 189 50 61ZZARD SHAD 122 16 GIZZARD SHAD 102 7 GIZZARD SHAD 123 12 GIZZARD SHAD 110 12 6ZZARD SHAD 11o 11 GIZZARD SHAD 113 12 HORNYHEAD CHUB 61 3 STRIPED SHINER 79 STRIPED SHINER 105 ROSYFACE SHINER 64 ROSYFACE SHINER 57 SPOTFIN SHINER 61 SPOTFIN SHINER 69 SPOTFIN SHINER 71 SPOTFIN SHINER s0 12

', "7c 198B-89 BRAIDWOOD STA7ION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GOLDEN SHINER 69 60LDEN SHINER 51 GOLDEN SHINER 62 21 MIMIC SHINER 57 1 BULLHEAD MINNOW 57 I BLACK BULLHEAD 127 21 ROCK BASS 195 200 ROCK BASS 212 230 ROCK BASS 133 55 ROCK BASS 65 ]a ROCK BASS 1O0 23 ROCK BASS 82 15 ROCK BASS 74 7 ROCK BASS 71 6 ROCK BASS 65 6 ROCK BASS 61 4 ROCK BASS 81 9 ROCK BASS 71 7 ROCK BASS 77 II ROCK BASS 59 5 ROCK BASS 60 5 ROCK BASS 56 3 ROCK BASS f1 4 ROCK BASS 54 3 ROCK BASS 53 3 ROCK BASS 54 4 ROCK BASS 57 4 ROCK BASS 36 I ROCKBASS 45 2 ROCK BASS 55 3 BLUEGILL 46 2 LONBEAR SUNFISH 100 24 LONGEAR SUNFISH 95 23 LON6EAR SUNFISH 81 10 LONGEAR SUNFISH 41 I LONbEAR SUNFISH 46 2 LONGEAR SUNFISH 43 I LONBEAR SUNFISH 41 1 LONGEAR SUNFISH 36 I LON6EAR SUNFISH 37 1 LONGEAR SUNFISH 31 I SNALLMOUTH BASS 305 520 SNALLMOUTH BASS 324 410 SMALLHOUTH BASS 96 11 SNALLMOUTH BASS 176 65 SNALLMOUTH BASS 134 31 SMALLMOUTH BASS 105 15 SHALLMOUTH BASS 85 6 SMALLMOUTH BASS 79 5 SHALLMOUTH BASS 71 4 SHALLMOUTH BASS 77 5 WHITE CRAPPIE 47 2 WHITE CRAPPIE 197 tOo BLACK CRAPPIE 235 310 LO6PERCH 74 4 LOPERCH 80 6 DATE: 28MAR89 GOLDFISH 178 125 CHANNEL CATFISH 92 4 STONECAT 167 35 ROCK BASS 192 190 ROCK BASS 76 8 DATE: IOAPR89 6IZZARD SHAD 126 16 6IZZARD SHAD I01 10 GIZZARD SHAD 95 6 COMMON CARP 252 280

G-75 1998-89 BRAIDNOOD STATION IMPINGEMENT STUDY

PLUS BATCH SPECIES LENGTH WEI6HT COUNT WEIGHT GREEN SUNFISH 43 1 GREEN SUNFISH 39 1 GREEN SUNFISH 33 I ORANSESPOTTED SUNFISH 96 20 ORANGESPOTTED SUNFISH 93 20 ORANSESPOTTED SUNFISH 84 13 ORANGESPOTTED SUNFISH 83 13 ORANKESPOTTED SUNFISH 80 12 BLUESILL 165 90 BLUEGILL 174 145 BLUEGILL 54 3 BLUE6ILL 31 I LONGEAR SUNFISH 97 20 LONBEAR SUNFISH 86 16 LONGEAR SUNFISH 75 8 LONSEAR SUNFISH 72 7 LONGEAR SUNFISH 52 3 LON6EAR SUNFISH 56 4 LONGEAR SUNFISH 41 I LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 40 1 LONGEAF SUNFISH 51 2 LONSEAR SUNFISH 32 1 LONGEAR SUNFISH 50 2 LONGEAR SUNFISH 48 2 LONSEAR SUNFISH 41 1 LONGEAR SUNFISH 42 I LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 36 I LONBEAR SUNFISH 35 1 LONSEAR SUNFISH 36 1 LONSEAR SUNFISH 37 1 LONGEAR SUNFISH 33 1 LONGEAR SUNFISH 3(l 1 LONGEAR SUNFISH 44 i LONGEAR SUNFISH 35 1 LONGEAR SUNFISH 33 I LONGEAR SUNFISH 36 1 LONGEAR SUNFISH 30 I LONGEAR SUNFISH 39 1 LONGEAR SUNFISH 33 I LONSEAR SUNFISH 32 1 LONGEAR SUNFISH I SNALLMOUTH BASS 133 22 SMALLMOUTH BASS 94 10 SMALLMOUTH BASS 103 12 SNALLMOUTH BASS 114 19 SMALLMOUTH BASS 87 9 SNALLMOUTH BASS 90 8 SNALLMOUTH BASS 92 10 SNALLNOUTH BASS 76 5 SNALLMOUTH BASS s0 6 SMALLNOUTH BASS 85 6 YELLOW PERCH 105 12 LOGPERCH 82 6 LOGPERCH 62 5 LOGPERCH 96 6 BLACKSIDE DARTER 65 4 DLACKSIDE DARTER 65 4 DLACKSIDE DARTER 63 3 BLACKSIDE DARTER 65 4 BLACKSIDE DARTER 57 3 BLACKSIDE DARTER 53 2 BLACKSIDE DARTER 54 2 DATE: 27MAR89 GOLDEN SHINER 142 41 GOLDEN SHINER 79 GOLDEN SHINER 74 GOLDEN SHINER 83 1989-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT MIMIC SHINER 48 MIMIC SHINER 53 23 SUCKERMOUTH MINNOW 50 2 BLUNINOSE MINNOW 86 BLUNTNOSE MINNOW 69 BLUNTNOSE MINNOW 94 BLUNTNOSE MINNOW 83 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 76 DLUNTNOSE MINNOW 62 BLUNTNOSE MINNOW 71 BLUNTNOSE MINNOW 72 BLUNTNOSE MINNOW 70 BLUNINOSE MINNOW 56 29 FATHEAD MINNOW 68 FATHEAD MINNOR 6E FATHEAD MINNOW 43 FATHEAD MINNOW 66 SILVER REOHORSE 105 16 GOLDEN REDHORSE 67 3 CHANNEL CATFISH 328 281) CHANNEL CATFISH 97 B BROOK SILVERSIDE 72 BROOK SILVERSIDE 82 BROOK SILVERSIDE 87 BROOK SILVERSIDE 65 BROOK SILVERSIDE 74 BROODSILVERSIDE 69 BROOK SILVERSIDE 83 BROOK SILVERSIDE 63 BROOK SILVERSIDE 71 BROOK SILVERSIDE 73 BROOK SILVERSIDE 76 BROOK SILVERSIDE 72 19 ROCK BASS 198 190 ROCK BASS 75 9 ROCK BASS 56 4 ROCK BASS 77 10 ROCK BASS 75 9 ROCK BASS 72 9 ROCK BASS 70 7 ROCK BASS 61 6 ROCK BASS 63 7 ROCK BASS 55 5 ROCK BASS 52 4 ROCK BASS 72 a ROCK BASS 65 5 ROCK BASS 70 7 ROCK BASS 62 5 ROCK BASS 65 7 ROCK BASS 65 7 ROCK BASS 66 7 ROCK BASS 66 7 ROCK BASS 61 6 ROCK BASS 64 7 ROCK BASS 66 a ROCK BASS 53 4 ROCK BASS 58 4 ROCK BASS 54 4 ROCK BASS 37 1 ROCK BASS 43 2 ROCK BASS 45 3 ROCK BASS 52 4 ROCK BASS 60 5 ROCK BASS "123 615 ROCK BASS 66 . GREEN SUNFISH 92 17 GREEN SUNFISH 50 2 GREEN SUNFISH 36 1

G-73 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ------.-....------.. ------...... -- -- ..... ROC[ BASS 51 3 GREEN SUNFISH 87 14 GREEN SUNFISH 41 1 BLUEGILL 172 100 LONSEAR SUNFISH 127 45 LONGEAR SUNFISH 80 12 LONGEAR SUNFISH 41 2 SMALLMOUTH BASS 102 14 SNALLMOUTH BASS 93 10 SMALLMOUTH BASS 77 5 DATE: 22MAR89 GOLDEN SHINER STRIPED SHINER STRIPED SHINER STRIPED SHINER STRIPED SHINER STRIPED SHINER STRIPED SHINER STRIPED SHINER STRIPED SHINER STRIPED SHINER STRIPED SHINER ROSYFACE SHINER ROSYFACE SHINER ROSYFACE SHINER ROSYFACE SHINER ROSYFACE SHINER ROSYFACE SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SPOTFIN SHINER SAND SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER MIMIC SHINER

G-72 1988-09 BRAIONOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT - EAR-- SUNFIS -- 39 ------LONGEAR SUNFISH 39 1 LONGEAR SUNFISH 3B 1 LONGEAR SUNFISH 36 1 LONSEAR SUNFISH 34 1 LONGEAR SUNFISH 39 I LONGEAR SUNFISH 36 I LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 30 1 LONGEAR SUNFISH 30 1 LONGEAR SUNFISH 343 LONGEAR SUNFISH 33 1 LONGEAR SUNFISHSUNFISH 3433 1 SNALLMOUTH BASS 100 13 SHALLMOUTH BASS 126 27 SMALLHOUTHDBASS 67 3 SMALLMOUTH BASS 113 16 SMALLMOUTH BASS 106 15 SMALLMOUTH BASS 87 8 SNALLROUTH BASS 76 6 SMALLMOUTH BASS 93 12 SMALLMOUTH BASS 92 11 SMALLMOUTH BASS If( 17 SMALLMOUTH BASS 96 14 SMALLMOUTH BASS 108 16 SMALLMOUTH BASS 83 8 LARGEMOUTH BASS 190 105 WHITE CRAPPIE 103 12 BLACK CRAPPIE 99 13 BLACK CRAPPIE 97 12 BLACK CRAPPIE 73 4 BLACK CRAPPIE 81 7 DATE: 21MAR89 GIZZARD SHAD 122 17 COMMON CARP 215 170 GOLDEN SHINER 95 8 STRIPED SHINER 74 STRIPED SHINER 72 STRIPED SHINER 30 SPOTFIN SHINER 81 SPOTFIN SHINER 79 SPOTFIN SHINER 66 SPOTFIN SHINER 87 SPOTFJN SHINER 66 SPOTFIN SHINER 81 SPOTFIN SHINER 6B SPOTFIN SHINER 70 SPOIFIN SHINER 74 MIMIC SHINER 52 BLUNTNDSE MINNOW O8 ILUNTNOSE MINNOW 77 BLUNTNDSE MINNOW 91 BLUNTNOSE MINNOW 76 BLUNTNOSE MINNOW 46 FATHEAD MINNOW 63 3 BULLHEAD MINNOW 61 2 YELLOW BULLHEAD 101 13 BROOK SILVERSIDE 68 2 ROCK BASS 66 7 ROCK BASS 66 7 ROCK BASS 80 II ROCK BASS 78 14 ROCK BASS 68 6 ROCK BASS 71 B ROCK BASS 71 9 ROCK BASS 64 6 ROCK BASS 65 3 ROCK BASS 62 6 ROCK BASS 52 3

G-71 1998-89 BRAIDWOOD STATION IMPINGEHENl STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ------72 - . 9...... ROCK BASS 7672 9 ROCK BASS to() 21 ROCK BASS 110 33 ROCK BASS 154 85 ROCK BASS 77 10 ROCK BASS 67 6 ROCK BASS 70 7 ROCK BASS 76 to ROCK BASS 72 8 ROCK BASS 62 6 ROCK BASS 70 7 ROCK BASS 66 6 ROCK BASS 64 5 ROCK BASS 67 6 ROCK BASS 74 8 ROCK BASS 68 6 ROCK BASS 60 5 ROCK BASS 104 22 ROCK BASS 71 7 ROCK BASS 67 6 ROCK BASS 58 4 ROCK BASS 61 4 ROCK BASS 64 5 ROCK BASS 62 6 ROCK BASS 53 5 ROCK BASS 51 4 ROCK BASS 69 B ROCK BASS 64 6 ROCK BASS 66 275 GREEN SUNFISH 123 43 GREEN SUNFISH 131 49 GREEN SUNFISH 104 23 GREEN SUNFISH 8 11 GREEN SUNFISH 86 16 GREEN SUNFISH 36 1 ORANGESPOTTED SUNFISH 84 13 ORANGESPOTTED SUNFISH 70 6 ORANGESPOTTED SUNFISH 62 5 ORANGESPOITED SUNFISH 62 5 BLUEGILL 126 60 BLUEGILL ISO 70 BLUEGILL 77 8 BLUEGILL 96 13 BLUEGILL 70 6 BLUEGILL 62 5 BLUEGILL 62 5 BLUEGILL 63 6 BLUEGILL 54 2 BLUEGILL 45 2 BLUEGILL 50 3 BLUEGILL 33 1 BLUEGILL 56 3 BLUEGILL 54 3 BLUEGILL 50 2 BLUEGILL 53 3 BLUEGILL 51 2 BLUEGILL 29 1 LONGEAR SUNFISH 106 27 LONGEAR SUNFISH 113 38 LONGEAR SUNFISH 102 26 LONGEAR SUNFISH 63 14 LONGEAR SUNFISH 64 7 LONGEAR SUNFISH 70 It LONGEAR SUNFISH 92 12 LONGEAR SUNFISH 46 2 LONSEAR SUNFISH 50 3 LONGEAR SUNFISH 47 2 LONGEAR SUNFISH 37 1 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 45 2 198B-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT *------A-C---SI--DE------DATR6 ------...... BLACKSIDE DARTER 67 4 DLACKSIDE DARTER 61 2 DLACKSIDE DARTER 70 5 BLACKSIDE DARTER 81 5 ILACKSIDE DARTER 71 5 DLACKSIDE DARTER 72 5 5 BLACKSIDEDLACKSIDE DARTER fi571 4

DATE: 20MAR89 GIZIARD SHAD 97 8 COMMON CARP 192 115 6OLDEN SHINER 91 8 STRIPED SHINER 88 STRIPED SHINER 65 STRIPED SHINER 69 STRIPED SHINER 6, STRIPED SHINER 65 STRIPED SHINER 73 STRIPED SHINER 81 STRIPED SHINER 66 STRIPED SHINER 70 STRIPED SHINER 61 STRIPED SHINER 60 38 ROSYFACE SHINER 66 ROSYFACE SHINER 67 SPOTFIN SHINER 75 SPOTFIN SHINER so SPDTF]N SHINER 78 SPOTFIN SHINER 82 SPOTFIN SHINER 72 SPOTFIN SHINER 58 SPOTFIN SHINER 73 SPOTFIN SHINER 72 SPOTFIN SHINER 50 SPOTFIN SHINER 77 SPOTFIN SHINER 65 SPOTFIN SHINER 77 SPOTFIN SHINER 62 SPOTFIN SHINER 81 SPOTFIN SHINER 55 81 SPOTFIN SHINER 62 SPOTFIN SHINER 63 SAND SHINER 63 2 MIMIC SHINER 59 ULUNTNOSE MINNOW 77 BLUNTNOSE MINNOW 85 DLUNTNOSE MINNOW 80 BLUNTNOSE MINNOW 90 BLUNTNOSE MINNOW of BLUNTNOSE MINNOW 72 BLUNTNOSE MINNOW 83 BLUNTNOSE MINNOW 93 DLUNTNOSE MINNOW 62 BLUNTNOSE MINNOW 78 BLUNTNOSE MINNOW 74 BLUNTNOSE MINNOW 85 ILUNTNOSE MINNOW 75 BLUNTNOSE MINNOW 70 BLUNTNOSE MINNOW 65 BLUNTNOSE MINNOW 80 62 BLUNTNOSE MINNOW 87 FATHEAD MINNOW 71 FATHEAD MINNOW 64 YELLOW BULLHEAD 83 7 STONECAT 123 19 STONECAT 145 29 STONECAT 106 9 BROOK SILVERSIDE 72 BROOK SILVERSIDE 65

G-69 1988-89 BRAIDHOOD STATION INPINGENENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT ROCK BASS 43 3 ROCK BASS 81 8 ROCK BASS 61 4 ROCK BASS 67 5 ROCK BASS 62 4 ROCK BASS 21 84 ORANGESPOTTED SUNFISH 42 2 ORANMESPOTTED SUNFISH 82 iI ORANGESPOTTED SUNFISH 84 12 ORANGESPOTTED SUNFISH 85 12 ORANGESPOTTED SUNFISH 85 13 ORANGESPDTTED SUNFISH 86 13 ORANGESPOTTED SUNFISH 95 16 ORANGESPOTTED SUNFISH 73 7 ORANGESPOTTED SUNFISH 68 5 ORANGESPOTTED SUNFISH 77 9 BLUEGILL 94 17 BLUEGILL 111 27 BLUEGILL 64 4 BLUE6ILL 62 4 BLUEGILL 52 2 BLUEGILL 63 3 BLUEGILL 52 2 BLUEGILL 47 1 BLUEGILL 44 1 BLUEGILL 46 1 BLUEGILL 51 I BLUEGILL 52 2 BLUEGILL 41 I BLUEGILL 43 1 LONGEAR SUNFISH 88 14 LONGEAR SUNFISH 105 27 LONGEAR SUNFISH 65 5 LONbEAR SUNFISH 62 5 LONGEAR SUNFISH 82 I1 LONBEAR SUNFISH 65 6 LONGEAR SUNFISH 61 5 LONGEAR SUNFISH 51 2 LONGEAR SUNFISH 57 3 LONGEAR SUNFISH 51 2 LONGEAR SUNFISH 47 1 LONGEAR SUNFISH 46 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 37 1 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 47 1 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 47 1 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 48 1 LONGEAR SUNFISH 35 1 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 40 I LONGEAR SUNFISH 38 I LONSEAR SUNFISH 36 1 LONGEAR SUNFISH 38 1 LONBEAR SUNFISH 41 I LONGEAR SUNFISH SNALLDUTH BASS B3 7 SNALLNOUTH BASS 68 4 SMALLNOUTH BASS 103 12 SNALLNOUTH BASS 76 4 SNALLOUTH BASS 98 11 SNALLNOUTH BASS 122 16 SNALLNOUTH BASS 91 a RAINBOW DARTER 47 2 LOSPERCH a1 5 LO6PERCH 67 6

G-68 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEI6HT SPOTFIN SHINER 76 SPOTFIN SHINER 76 SPOTFIN SHINER 65 SPOTFIN SHINER 92 SPOTFIN SHINER 84 SPOTFIN SHINER 70 SPOTFIN SHINER 74 SPOTFIN SHINER 74 SPOTFIN SHINER 73 SPOTFIN SHINER 73 SPOTFIN SHINER 78 SPOTFIN SHINER 72 SPOTFIN SHINER 60 SPOTFIN SHINER 68 SPOTFIN SHINER 64 SPOTFIN SHINER 69 SPOTFIN SHINER 81 SPOTFIN SHINER e1 SPOTFIN SHINER 93 SPOTFIN SHINER 79 SPOTFIN SHINER 65 SPOTFIN SHINER 70 SPOTFIN SHINER 72 SPOTFIN SHINER 71 SPOTFIN SHINER 76 SPOTFIN SHINER 84 SPOTFIN SHINER 71 SPOTFIN SHINER 85 SPOTFIN SHINER 75 SPOTFIN SHINER 67 117 SPOTFIN SHINER 36 MIMIC SHINER 36 MIMIC SHINER 54 MIMIC SHINER 48 MIMIC SHINER 62 MIMIC SHINER 51 MIMIC SHINER 53 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 71 BLUNTNOSE MINNOW 87 14 FATHEAD MINNOW 62 2 BULLHEAD MINNOW 72 3 CHANNEL CATFISH 72 2 CHANNEL CATFISH 62 1 CHANNEL CATFISH 80 3 CHANNEL CATFISH 57 1 BROOK SILVERSIDE 57 1 ROCK BASS 95 18 ROCK BASS 56 3 ROCK BASS 57 3 ROCK BASS 70 7 ROCK BASS 65 5 ROCK BASS 72 7 ROCK BASS 67 6 ROCK BASS 61 4 ROCK BASS 65 5 ROCK BASS 55 3 ROCK BASS 53 3 ROCK BASS 62 4 ROCK BASS 58 3 ROCK BASS 57 3 ROCK BASS 79 B ROCK BASS 54 3 ROCK BASS 79 9 ROCK BASS 61 5 ROCK BASS 53 5 ROCK BASS 51 4 ROCK BASS 42 2 ROCK BASS 64 5 ROCK BASS 65 5 ROCK BASS 75 9

G-67 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 78 II ROCK BASS 113 31 ROCK BASS 74 8 ROCK BASS 70 7 ROCK BASS 70 7 ROCK BASS 76 9 ROCK BASS 61 5 ROCK BASS 60 5 ROCK BASS 50 3 ROCK BASS 64 6 ROCK BASS 61 5 ROCK BASS 63 5 ROCK BASS 63 5 ROCK BASS 57 4 ROCK BASS 52 3 ROCK BASS 47 1 ROCK BASS 50 2 ROCK BASS 55 4 ROCK BASS 45 I ROCK BASS 43 1 ROCK BASS 44 1 GREEN SUNFISH 115 28 GREEN SUNFISH 82 it GREEN SUNFISH 42 1 GREEN SUNFISH 39 I GREEN SUNFISH 35 1 GREEN SUNFISH 36 I GREEN SUNFISH 42 1 GREEN SUNFISH 40 I GREEN SUNFISH 32 1 ORANGESPOTTED SUNFISH 75 a BLUEGILL 77 B BLUEGILL 81 10 BLUEGILL 55 2 BLUEGILL 54 2 BLUEGILL 45 1 LONGEAR SUNFISH 49 2 LON6EAR SUNFISH 40 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 46 1 LONGEAR SUNFISH 45 1 LONGEAR SUNFISH 41 I LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 39 1 SMALLMOUTH BASS 155 50 SMALLIIOUTH BASS 136 32 SNALLMOUTH BASS 66 8 SNALLHOUTH BASS 92 9 SMALLMOUTH BASS 75 5 SMALLMOUTH BASS 126 25 SMALLIOUTH BASS 115 18 SNALLMOUTH BASS 96 11 SNALLLOUTH BASS 97 11 SMALLMOUTH BASS 77 5 SNALLMOUTH BASS 95 8 SMALLHOUTH BASS 85 9 SMALLMOUTH BASS 77 5 LARGEMOUTH BASS 78 7 LOGPERCH 95 9 LOGPERCH 97 a SLACKSIDE DARTER so 7 BLACKSIDE DARTER 75 6 BLACKSIDE DARTER 64 3 DATE: 15MAR89 GIZZARD SHAD 134 20 GIZZARD SHAD 103 I0 GIZZARD SHAD 114 13 GIZZARD SHAD 113 !1 HORNYHEAD CHUB 74 5

G-66 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY ------PLUS BAICH SPECIES LENGTH WEIGHT COUNT WEIGHT SNALLMOUTH BASS 87 9 SNALLMOUTH BASS 83 9 SMALLMOUTH BASS 77 7 SMALLMOUTH BASS 85 B SHALLMOUTH BASS 83 a SMALLMOUTH BASS 93 10 SMALLMOUTH BASS 94 II SMALI.OUTH BASS 93 7 SMALLMOUTH BASS 100 13 SNALLMOUTH BASS 125 22 SMALLMOUTH BASS 88 9 SMALLMOUTH BASS 98 B SMALLMOUTH BASS 82 8 SNALLMOUTH BASS 115 20 SMALLMOUTH BASS 103 13 SMALLMOUTH BASS 88 7 SMALLMOUTH BASS 65 3 LARGEMOUTH BASS 128 25 LARGEMOUTH BASS 125 25 LARGEMDUTH BASS 130 28 BLACK CRAPPIE 93 10 BANDED DARTER 47 1 LOGPERCH 95 8 LOBPERCH 96 9 LOGPERCH 15 6 LOGPERCH 92 7 BLACKSIDE DARTER 67 2 BLACKSIDE DARTER 65 2 DATE: 14MAR89 6IZZARD SHAD 127 17 GIZZARD SHAD 133 20 HORNYHEAD CHUB 83 7 GOLDEN SHINER GOLDEN SHINER 102 SPOTFIN SHINER 91 SPOTFIN SHINER 83 SPOTFIN SHINER 70 SPOTFIN SHINER 72 SPOTFIN SHINER 62 SPOTFIN SHINER 94 SPOTFIN SHINER 72 15 SPOTFIN SHINER 67 SPOTFIN SHINER 71 SPOTFIN SHINER 73 SPOTFIN SHINER 84 SPOTFIN SHINER 81 SPOTFIN SHINER 61 SPOTFIN SHINER 72 SPOTFIN SHINER 65 SPOTFIN SHINER 83 MIMIC SHINER 51 MIMIC SHINER 61 65 MIMIC SHINER 57 SPOTFIN K RED SHINER 61 2 BLUNTNOSE MINNOW 94 BLUNTNOSE MINNOW 72 FATHEAD MINNOW 70 6 FATHEAD MINNOW 65 FATHEAD MINNOW 61 11 FATHEAD MINNON 67 BULLHEAD MINNOW 70 12 SHORTHEAD REDHORSE 130 22 BLACK BULLHEAD 115 20 ST7NECAT 172 50 STONECAT 178 50 STONECAT 185 45 BROOK SILVERSIDE 64 BROOK SILVERSIDE 74 BROOK SILVERSIDE 75

G-65 1988-89 BRAIDNOOD STATION IMPINGENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT STONECAT 177 55 STONECAT 70 3 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE B1 BROOK SILVERSIDE 64 ROCK BASS 155 75 ROCK BASS 82 I1 ROCK BASS 85 12 ROCK BASS 8B 12 ROCK BASS 67 7 ROCK BASS 71 7 ROCK BASS 65 6 ROCK BASS 60 5 ROCK BASS 71 8 ROCK BASS 65 6 ROCK BASS 59 5 ROCK BASS 56 5 ROCK BASS 85 13 ROCK BASS 81 10 ROCK BASS 66 7 ROCK BASS 63 6 ROCK BASS 71 B ROCK BASS 64 6 ROCK BASS 61 5 ROCK BASS 57 4 ROCK BASS 64 5 ROCK BASS 62 4 ROCK BASS 61 4 ROCK BASS 65 5 ROCK BASS 6B 6 ROCK BASS 61 6 ROCK BASS 75 9 ROCK BASS 63 6 ROCK BASS 58 4 ROCK BASS 57 4 ROCK BASS 4i 22i GREEN SUNFISH 102 20 ORAN6ESPOTTED SUNFISH 77 I0 ORANGESPOTTED SUNFISH 82 12 ORANGESPOTTED SUNFISH 77 9 ORANGESPOTTED SUNFISH 65 5 BLUEGILL 182 160 BLUEGILL 151 65 BLUEGILL 131 50 BLUEGILL 105 21 BLUEGILL 65 5 BLUEGILL 62 4 BLUEGILL 46 2 BLUEGILL 50 3 LONGEAR SUNFISH 82 12 LON6EAR SUNFISH 64 5 LONGEAR SUNFISH 61 4 LONGEAR SUNFISH 51 3 LONGEAR SUNFISH 45 2 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 50 2 LONGEAR SUNFISH 110 32 LON6EAR SUNFISH 97 18 LONSEAR SUNFISH 86 15 LONGEAR SUNFISH e1 13 LONGEAR SUNFISH 56 4 LONSEAR SUNFISH 60 5 LONGEAR SUNFISH 50 3 LONGEAR SUNFISH 39 1 LONGEAR SUNFISH 43 2 SNALLNOUTH BASS 140 35 SNALLMOUTH BASS 153 45 SNALLROUTH BASS 114 181 SMALLMOUTH BASS 97 10

G-64 1998-89 BRAIDNOOD STATION IMPINSEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT SNALLROUTH BASS 94 12 SMALLMOUTH BASS 102 13 SHALLMOUTH BASS 118 24 SMALLMOUTH BASS 8I 6 SMALLMOUTH BASS 99 14 SMALLMOUTH BASS 96 13 SNALLMOUTH BASS 76 5 SMALLHOUTH BASS 82 7 SNALLMOUTH BASS 99 12 SMALLMOUTH BASS 94 11 SMALLMOUTH BASS 94 12 SMALLNOUTH BASS 94 12 SMALLMOUITH BASS 96 13 SMALLMOUTH BASS 14 170 LOSPERCH 7i 5 BLACKSIDE DARTER 68 4 BLACKSIDE DARTER 71 4 FRESHWATER DRU 232 156 DATE: 13MAR89 GIZZARD SHAD 297 280 GIZZARD SHAD 132 21 GIZZARD SHAD 191 70 COMMONCARP 215 170 GOLDEN SHINER 85 GOLDEN SHINER 92 GOLDEN SHINER 93 GOLDEN SHINER 90 21 ROSYFACE SHINER 57 ROSYFACE SHINER 67 ROSYFACE SHINER 57 SPOTFIN SHINER 85 SPOTFIN SHINER 77 SPOTFIN SHINER 81 SPOTFIN SHINER 82 SPOTFIN SHINER 61 5i SPOTFIN SHINER 61 SPOTFIN SHINER 81 SPOTFIN SHINER BI SPOTFIN SHINER 72 SPOTFIN SHINER 77 SPOTFIN SHINER 85 SPOTFIN SHINER 61 SPOTFIN SHINER 77 58 MIMIC SHINER 59 MIMIC SHINER 55 MIMIC SHINER 62 BLUNTNOSE MINNOW 81 BLUNTNOSE MINNOW el BLUNTNOSE MINNOW 86 BLUNTNOSE MINNOW 75 BLUNTNOSE MINNOW 90 BLUNTNOSE MINNOW of 42 BLUNTNOSE MINNOW 83 FATHEAD MINNOW 60 FATHEAD MINNOW 63 FATHEAD MINNOW 73 FATHEAD MINNOW 61 FATHEAD MINNOW 61 FATHEAD MINNOW 69 BULLHEAD MINNOW 78 BULLHEAD MINNOW 78 BULLHEAD MINNOW 67 Ii BULLHEAD MINNOW 75 NORTHERN HOG SUCKER 125 21 SILVER REDHORSE III 17 BOLDEN REDHORSE 101 11 GOLDEN REDHORSE 61 2 SNORTHEAD REDHORSE 124 21 SNORTHEAD REDHORSE 92 B

^ el -- % 1988-B9 BRAIDWOOD STATION IMPINGERENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT BROOK SILVERSIDE 67 BROOK SILVERSIDE 77 BROOK SILVERSIDE 67 ROCK BASS 170 102 ROCK BASS 215 215 ROCK BASS 185 150 ROCK BASS 207 207 ROCK BASS 72 9 ROCK BASS 62 5 ROCK BASS 66 7 ROCK BASS 65 5 ROCK BASS 60 5 ROCK BASS 77 to ROCK BASS 67 7 ROCK BASS 56 4 ROCK BASS 61 5 ROCK BASS 67 7 ROCK BASS 57 4 ROCK BASS 45 2 ROCK BASS 55 4 ROCK BASS 56 4 ROCI BASS 66 6 ROCK BASS 67 6 ROCK BASS 66 6 ROCK BASS 63 5 ROCK BASS 45 2 ROCK BASS 41 1 ROCK BASS 41 1 ROCK BASS 65 5 ROCK BASS 53 5 ROCK BASS 63 5 ROCK BASS 77 8 ROCK BASS 63 5 ROCK BASS 61 5 ROCK BASS 70 7 ROCK BASS 66 6 ROCK BASS 71 7 ROCK BASS 61 5 ROCK BASS 54 5 ROCK BASS 69 6 ROCK BASS 70 7 ROCK BASS 63 5 ROCK BASS 51 4 ROCK BASS 106 806 GREEN SUNFISH 4i i BLUEGILL 66 5 LONGEAR SUNFISH 97 25 LON6EAR SUNFISH 122 40 LONGEAR SUNFISH 45 2 LONBEAR SUNFISH 57 4 LONGEAR SUNFISH 60 4 LONGEAR SUNFISH 51 3 LONGEAR SUNFISH 38 I LONGEAR SUNFISH 41 1 LONGEAR SUNFISH to8 31 SMALLMOUTH BASS 154 50 SNALLMOUTH BASS 115 22 SMALLMOUTH BASS 102 13 SMALLOUTH BASS 95 I0 SMALLMOUTH BASS 113 17 SMALLLOUTH BASS 136 32 SNALLNOUTH BASS e8 6 SNALLNOUTH BASS 61 3 SMALLNOUTH BASS 62 7 SMALLMOUTH BASS 96 12 SNALLMOUTH BASS 97 11 SHALLMOUTH BASS 105 14 SMALLHOUTH BASS 91 10 SMALLMOUTH BASS 93 11 SNALLMOUTH BASS 79 6 SNALLMOUTH BASS 80 6

G-62 1998-89 DRAIDWOOD STATION IMPINGEMENT STUDY ...... •...... o...o...... o...... o... . PlUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT HORNYHEAD CHUB 92 , HORNYHEAD CHUB 91 NORNYHEAD CHUB 85 30 HORNYHEAD CHUB 53 2 EMERALD SHINER 93 EMERALD SHINER 92 I STRIPED SHINER 76 4 ROSYFACE SHINER 61 ROSYFACE SHINER 56 ROSYFACE SHINER 57 ROSYFACE SHINER 52 ROSYFACE SHINER 63 ROSYFACE SHINER 57 ROSYFACE SHINER 52 ROSYFACE SHINER 54 ROSYFACE SHINER 5f ROSYFACE SHINER 56 ROSYFACE SHINER 66 ROSYFACE SHINER 55 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 49 ROSYFACE SHINER 52 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 531 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 58 ROSYFACE SHINER 53 ROSYFACE SHINER 54 ROSYFACE SHINER 54 ROSYFACE SHINER 53 ROSYFACE SHINER 55 ROSYFACE SHINER 54 ROSYFACE SHINER 56 ROSYFACE SHINER 54 ROSYFACE SHINER 3 SPOTFIN SHINER 8; SPOTFIN SHINER B4 SPOTFIN SHINER 80 SPOTFIN SHINER 61 17 MIMIC SHINER 52 MIMIC SHINER 48 BLUNTNOSE MINNOW 76 BLUNTNOSE MINNOW 78 t0 WUILLBACK 150 39 GUILLBACK 147 40 GUILLBACK 145 42 GU]ILDACK 145 35 SILVER REDHORSE 106 17 SILVER REDHORSE 132 26 SILVER REDHORSE 132 29 SILVER REDHORSE 115 19 SILVER REDHORSE 122 22 SILVER REDHORSE 130 25 SILVER REDHORSE 103 13 6OLDEN REDHORSE 58 2 GOLDEN REDHORSE 56 2 60LDEN REDHORSE 54 2 SHORTHEAD REDHORSE 103 12 SHORTHEAD REDHORSE 100 10 SHORTHEAD REDHORSE 101 I1 SHORTHEAD REDHORSE 104 11 SHORTHEAD REDHORSE 110 15 SHORTHEAD REDHORSE 101 14 SHORTHEAD REDHORSE 117 14 YELLOW BULLHEAD 153 46 CHANNEL CATFISH 58 2 CHANNEL CATFISH 63 2 STONECAT 171 47

G-61 19BB-89 BRAIDWOOD STATION INPINGENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 86 810 GREEN SUNFISH 150 74 GREEN SUNFISH 120 40 BREEN SUNFISH 100 21 GREEN SUNFISH 83 12 GREEN SUNFISH OB 25 ORANGESPOTTED SUNFISH 65 5 LONGEAR SUNFISH 116 39 LONGEAR SUNFISH 79 10 LONGEAR SUNFISH 108 27 LONGEAR SUNFISH 93 18 LONGEAR SUNFISH 108 32 LONGEAR SUNFISH 107 30 LONBEAR SUNFISH 91 22 LONGEAR SUNFISH 82 12 LONGEAR SUNFISH 84 13 LONGEAR SUNFISH 98 24 LONGEAR SUNFISH 28 1 LONGEAR SUNFISH 35 LONSEAR SUNFISH 38 I LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 36 1 LONGEAR SUNFISH 44 2 LONSEAR SUNFISH 50 2 LONGEAR SUNFISH 53 3 HYBRID SUNFISH 83 14 SNALLNOUTH BASS 82 7 SNALLMOUTH BASS 106 14 SNALLMOUTH BASS 107 14 SMALLNOUTH BASS 82 6 SMALLMOUTH BASS 77 6 SMALLMOUTH BASS 104 12 SMALLMOUTH BASS 118 20 SNALLMOUTH BASS 89 9 SMALLMOUTH BASS 99 1! SNALLNOUTH BASS 97 10 SMALLMOUTH BASS 90 9 SMALLMOUTH BASS 93 10 SMALLMOUTH BASS 106 13 SNALLNOUTH BASS 104 12 SNALLMOUTH BASS 93 10 SMALLMOUTH BASS 105 13 SMALLMOUTH BASS 96 to SMALLMOUTH BASS 101 10 SHALLMOUTH BASS 96 9 SMALLMOUTH BASS 97 12 SMALLMOUTH BASS 103 SMALIMOUTH BASS 97 12 SMALLMOUTH BASS 104 13 SMALLNOUTH BASS 9e 9 SMALLMOUTH BASS 92 10 SGALLMOUTH BASS 112 16 SNALLNOUTH BASS 106 14 SNALLHOUTH BASS 86 6 SMALLMOUTH BASS 106 14 SNALLMOUTH BASS 126 26 SMALLMOUTH BASS I; 19i JOHNNY DARTER 5i . YELLOW PERCH 124 24 LOSPERCH 02 5 LOGPERCH 97 9 . LOSPERCH 92 5 BLACKSIDE DARTER 92 6 SLENDERHEAD DARTER 50 1 DATE: 08MAR89 GIZZARD SHAD 126 17 GIZZARD SHAD 296 275 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY ----- I------PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROSYFACE SHINER 55 - ROSYFACE SHINER 56 ROSYFACE SHINER 51 ROSYFACE SHINER 52 ROSYFACE SHINER 45 ROSYFACE SHINER 56 26 SPOTFIN SHINER 71 4 BLUNTNOSE MINNOW 86 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 66 BLUNTNOSE MINNOW 87 BLUNTNOSE MINNOW 75 23 BULLHEAD MINNOW 70 BULLHEAD MINNOW 61 BULLHEAD MINNOW 54 8 OUILLBACK 122 23 SMALLMOUTH BUFFALO 135 37 SILVER REDHORSE 95 9 SILVER REDHORSE 112 16 SILVER REDHORSE 113 18 SILVERSILVER REDHORSEREOHORSE 17115 20 SILVER REDHORSE 85 7 SILVER REDHORSE 127 24 GOLDEN REDHORSE 54 2 SHORTHEAD REDHORSE 67 7 SHORTHEAD REDHORSE 12u 19 SHORTHEAD REDHORPE 118 17 SHORTHEAD REDHORSE 113 15 SHORTHEAD REDHORSE 119 20 SHORTHEAD REDHORSE 102 12 BLACK BULLHEAD 96 14 CHANNEL CATFISH 82 3 STONECAT 124 14 STONECAT 166 35 STONECAT 120 14 BROOK SILVERSIDE 74 BROOK SILVERSIDE 65 BROOK SILVERSIDE 63 BROOK SILVERSIDE 77 BROOK SILVERSIDE 76 BROOK SILVERSIDE 63 10 ROCK BASS 206 172 ROCK BASS 190 154 ROCK BASS 138 59 ROCK BASS 74 9 ROCK BASS 70 6 ROCK BASS 60 5 ROCK BASS 82 13 ROCK BASS 95 17 ROCK BASS 55 3 ROCK BASS 55 3 ROCK BASS 65 6 ROCK BASS 76 B ROCK BASS 81 10 ROCK BASS 73 7 ROCK BASS 71 7 ROCK BASS e1 I0 ROCK BASS 69 7 ROCK BASS 57 4 ROCK BASS 78 9 ROCK BASS 64 6 ROCK BASS 77 9 ROCK BASS 78 B ROCK BASS 63 6 ROCK BASS 72 7 ROCK BASS 79 9 ROCK BASS 53 3 ROCK BASS 63 6 ROCK BASS 87 11 ROCK BASS 72 7 198B-B9 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ORANGESPOTTED SUNFISH 61 4 ORANGESPOTTED SUNFISH 102 24 BLUEGILL 152 71 BLUEGILL 42 1 BLUEGILL 53 2 LONSEAR SUNFISH 96 19 LONSEAR SUNFISH 106 29 LONBEAR SUNFISH 94 18 LONGEAR SUNFISH 64 4 LONSEAR SUNFISH 53 2 LONSEAR SUNFISH 47 1 LON6EAR SUNFISH 42 1 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 34 1 LONGEAR SUNFISH 77 9 SHALLMOUTH BASS BI 7 SMALLMOUTH BASS 86 9 SMALLMOUTH BASS 87 9 SHALLMOUTH BASS 116 22 SMALLMOUTH BASS 96 10 SMALLNOUTH BASS 87 I1 SNALLNOUTH BASS 116 17 SNALLMOUTH BASS 96 10 SMALLMOUTH BASS 94 9 SNALLMOUTH BASS 87 9 SNALLNOUTH BASS 68 4 SMALLNOUTH BASS 63 3 SNALLNOUTH BASS 97 10 SNALLOUTH BASS 1(15 14 SNALLHOUTH BASS 75 5 SNALLNOUTH BASS 102 15 SNALLNOUTH BASS 94 !I SMALLNOUTH BASS 87 9 SNALLNOUTH BASS 93 10 SNALLNOUTH BASS 78 7 SNALLNOUTH BASS 96 i1 SNALLNOUTH BASS 71 4 SNALLMOUTH BASS 80 6 SNALLOUTH BASS so 8 SNALLMOUTH BASS 91 9 SNALLOUTH BASS 115 18 SMALLNOUTH BASS 83 B SNALLNOUTH BASS 72 4 LARGEOULITH BASS 173 80 LARGEMOUTH BASS 105 15 BLACK CRAPPIE 246 301 BANDED DARTER 50 1 BLACKSIDE DARTER 63 3 BLACKSIDE DARTER 59 2 FRESHNATER DRUM 232 140 DATE: 07NAR89 gIZZARD SHAD 136 25 GIZZARD SHAD 78 4 COMMON CARP 241 225 HORNYHEAD CHUB 83 HORNYHEAD CHUB 91 GOLDEN SHINER 86 RDSYFACE SHINER 60 ROSYFACE SHINER 65 HOSYFACE SHINER 65 ROSYFACE SHINER 57 ROSYFACE SHINER 55 ROSYFACE SHINER 55 ROSYFACE SHINER 57 ROSYFACE SHINER 54 ROSYFACE SHINER 54 ROSYFACE SHINER 53 ROSYFACE SHINER 56 ROSYFACE SHINER 57

G-58 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEI6HT COUNT WEIGHT BULLHEAD MINNOW 71 BULLHEAD MINNOW 59 GUILLBACK 142 35 OUILLBACK 131 26 OUILLBACK 121 21 BUILLBACK 158 56 GUILLBACK 142 34 OUILLBACK 130 29 GUILLBACK 155 48 GUILLBACK 133 26 SILVER REDHORSE 121 22 SILVER REDHORSE el 6 SILVER REDHORSE 81 6 SILVER REDHORSE 83 7 BLACK REDHORSE 103 12 SHORTHEAD REDHORSE 111 15 SHORTHEAD REDHORSE i18 19 SHORTHEAD REDHORSE 105 12 BLACK BULLHEAD 115 16 BLACK BULLHEAD 125 27 BLACK BULLHEAD 127 29 YELLOW BULLHEAD 16E 60 CHANNEL CATFISH 42 1 BLACKSTRIPE TOPHINNOW 44 1 BROOK SILVERSIDE 75 BROOK SILVERSIDE 71 BROOK SILVERSIDE 75 BROOK SILVERSIDE 6B BROOK SILVERSIDE 65 BROOK SILVERSIDE 76 BROOK SILVERSIDE 73 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 63 BROOK SILVERSIDE 73 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 22 ROCK BASS 190 160 ROCK BASS 195 160 ROCK BASS 150 70 ROCK BASS 107 22 ROCK BASS 75 9 ROCK BASS 63 4 ROCK BASS 65 5 ROCK BASS 63 5 ROCK BASS 00 10 ROCK BASS 73 9 ROCK BASS 68 6 ROCK BASS 67 6 ROCK BASS 9B 14 ROCK BASS of 11 ROCK BASS 66 5 ROCK BASS 69 6 ROCK BASS 77 9 ROCK BASS 81 10 ROCK BASS 75 8 ROCK BASS 71 7 ROCK BASS 57 5 ROCK BASS 63 5 ROCK BASS 57 5 ROCK BASS 62 5 ROCK BASS 51 4 ROCK BASS 52 3 ROCK BASS 57 4 ROCK BASS 38 1 ROCK BASS 57 3 ROCK BASS 77 7 ROCK BASS 11 76 GREEN SUNFISH 10i 22 GREEN SUNFISH 133 60 GREEN SUNFISH 120 34

G-57 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT BDUNTNOSE MINNOW 70 3 SILVER REDHORSE 87 8 STONECAT 143 23 STONECAT 156 39 ROCK BASS 56 3 ROCK BASS 52 3 ROCK BASS 60 4 ROCK BASS 60 4 ROCK BASS 6 5 ROCK BASS 64 6 ROCK BASS 51 3 SMALLMOUTH BASS 113 15 SMALLMOUTH BASS 74 5 SMALLMOUTH BASS 100 11 SMALLMOUTH BASS 113 17 SMALLMOUTH BASS 105 14 LOGPERCH FRESHWATER DRUM 233 140 DATE: 06MAR89 GIZZARD SHAD 320 360 GIZZARD SHAD 288 190 GIZZARD SHAD 92 7 GIZZARD SHAD 210 10 COMMON CARP 205 J40 GOLDEN SHINER 106 GOLDEN SHINER 132 GOLDEN SHINER 96 GOLDEN SHINER 116 61 EMERALD SHINER 82 4 ROSYFACE SHINER 57 ROSYFACE SHINER 55 ROSYFACE SHINER 64 ROSYFACE SHINER 57 ROSYFACE SHINER 51 ROSYFACE SHINER 58 ROSYFACE SHINER 58 ROSYFACE SHINER 51 ROSYFACE SHINER 59 ROSYFACE SHINER 56 ROSYFACE SHINER 55 ROSYFACE SHINER 52 ROSYFACE SHINER 58 ROSYFACE SHINER 53 ROSYFACE SHINER 56 ROSYFACE SHINER 57 ROSYFACE SHINER 55 ROSYFACE SHINER 52 ROSYFACE SHINER 53 ROSYFACE SHINER 56 ROSYFACE SHINER 58 ROSYFACE SHINER 51 ROSYFACE SHINER 53 ROSYFACE SHINER 54 3i SPOIFIN SHINER 72 SPOTFIN SHINER 65 SPOTFIN SHINER 8l SPOTFIN SHINER 71 SPOTFIN SHINER 70 20 SPOTFIN SHINER 75 SPOTFIN SHINER 70 9 NIMIC SHINER 46 MIMIC SHINER 57 BLUNTNOSE MINNOW 09 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 89 . BLUNINOSE MINNOW 77 BLUNTNOSE MINNOW 84 * BLUNINOSE MINNOW 83 BLUNTNOSE MINNOW 73 45

G-56 1988-89 DRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIHT COMMON CARP 242 240 ROSYFACE SHINER 58 2 SPOTFIN SHINER 85 SPOTFIN SHINER 83 SPOTFIN SHINER 63 SPOTFIN SHINER 62 SPOTFIN SHINER 62 SPOTFIN SHINER 55 Ia FATHEAD MINNOW 51 1 BULLHEAD MINNOW 68i BULLHEAD MINNOW 61 BULLHEAD MINNOW 61 BULLHEAD MINNOW 62 BULLHEAD MINNOW 60 13 BLACK BULLHEAD 69 5 STONECAT 162 35 BROOK SILVERSIDE 73 1 ROCK BASS 77 8 ROCK BASS 70 6 ROCK BASS 63 5 ROCK BASS 69 7 ROCK BASS 58 4 ROCK BASS 58 5 ROCK BASS 45 2 ROCK BASS 45 1 ROCK BASS 45 1 ORANGESPOTTED SUNFISH 106 30 ORANGESPOTTED SUNFISH 87 13 BLUEGILL 63 4 BLUEGILL 57 3 BLUEGILL 41 1 BLUEGILL 31 1 LONGEAR SUNFISH 61 6 LONGEAR SUNFISH 5i 2 LONGEAR SUNFISH 63 2 SMALLMOUTH BASS Bo 6 DATE: 19APR89 GIZZARD SHAD 116 12 GIZZARD SHAD 116 14 PALLID SHINER 55 2 EMERALD SHINER 65 2 ROSIFACE SHINER 52 ROSYFACE SHINER 60 i SPOTFIN SHINER 57 BLUNTNOSE MINNOW 84 6 FATHEAD MINNOW 42 BULLHEAD MINNOW 57 BULLHEAD MINNOW 60 BULLHEAD MINNOW 72 BULLHEAD MINNOW 55 SPOTTED SUCKER 108 13 CHANNEL CATFISH 662 2910 CHANNEL CATFISH 82 3 BROOK SILVERSIDE 62 1 YELLOW BASS 264 360 ROCK BASS 81 10 ROCK BASS 69 7 ROCK BASS 60 4 GREEN SUNFISH 106 25 BLUESILL 56 3 BLUEGILL 52 2 BLUEGILL 45 2 BLUE61LL 38 I BLUEGILL 31 I LONGEAR SUNFISH 41 LONGEAR SUNFISH 45 2 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 35 I

f. 170 1908-09 BRAIDWOOD STA1TON IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT SMALLMOUTH BASS 149 41 WHITE CRAPPIE 49 1 WHITE CRAPPIE 84 6 BLACK CRAPPIE 62 3 LOGPERCH 67 3 DATE: 24APR89 GIZZARD SHAD 110 10 MIMIC SHINER 53 1 VUILLBACK 87 9 CHANNEL CATFISH 72 3 BROOK SILVERSIDE 72 1 ROCK BASS 58 2 ROCK BASS 57 4 ROCK BASS 31 GREEN SUNFISH 37 I GREEN SUNFISH 35 12I LONGEAR SUNFISH 41 12 SMALLMOUTH BASS 110 SMALLMOUTH BASS 122 17 WHITE CRAPPIE 134 29 DATE: 25APR89 ROSYFACE SHINER 42 MIMIC SHINER 48 I FATHEAD MINNOW 65 FATHEAD MINNOW 67 FAIHEAD MINNOW 60 A QUILLBACK 127 6 CHANNEL CATFISH 56 1 STONECAT III 10 BRODI SILVERSIDE 63 1 ROCk BASS 69 7 ROCK BASS 66 6 ROCk BASS 51 3 ROCK BASS 182 105 LONGEAR SUNFISH 121 41 LONSEAR SUNFISH 91 1B LONGEAR SUNFISH 32 SNALLMOUTH BASS 93 SMALLMOUTH BASS 91 7 WHITE CRAPPIE 67 WHITE CRAPPIE 135 30 WHITE CRAPPIE 133 27 LO6PERCH 75 3 DATE: 26APR89 GIZZARD SHAD 149 22 GOLDEN SHINER 96 7 ROSYFACE SHINER 5B 1 MIMIC SHINER 52 MIMIC SHINER 5I BLUNTNOSE MINNOW 63 3 BLACK BULLHEAD 72 ROCK BASS 67 5 ROCK BASS 60 4 ROCK BASS 61 4 ROCK BASS 42 1 LON6EAR SUNFISH 101 23 SNALLMOUTH BASS 290 315 SMALLMOUTH BASS 120 19 SMALLMOUTH BASS 95 9 LO6PERCH 71 3 DATE: OIMAYB9 GOLDEN SHINER 103 GOLDEN SHINER 81

G-79 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT PALLID SHINER 56 2 ROSYFACE SHINER 65 ROSYFACE SHINER 65 ROSYFACE SHINER 60 ROSYFACE SHINER 70 ROSYFACE SHINER 69 ROSYFACE SHINER 67 ROSYFACE SHINER 64 ROSYFACE SHINER 52 SPOTFIN SHINER 66 SPOTFIN SHINER 59 SPOTFIN SHINER 53 1 SAND SHINER 59 2 MIMIC SHINER 57 MIMIC SHINER 57 BULLHEAD MINNOW 59 BULLHEAD MINNOW 59 UNID CARPIODES 75 4 6OLDEN REDHORSE 92 7 6OLDEN REDHORSE 62 2 SHORTHEAD REDHORSE 75 4 UNID MOXOSTOMA 69 3 STONECAT 185 70 STONECAT 129 25 ROCK BASS 70 6 ROCK BASS 72 8 ROCK BASS 79 9 ROCK BASS 63 4 ROCK BASS 58 4 BLUEGILL B 10 LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 34 1 SMALLMOUTH BASS 90 6 SMALLMOUTH BASS 77 5 BLACK CRAPPIE 136 31 BLACK CRAPPIE 222 115 BLACK CRAPPIE 44 1 LOGFERCH 76 4 DATE: 02MAY89 PALLID SHINER 57 PALLID SHINER 55 PALLID SHINER 52 EMERALD SHINER 91 5 STRIPED SHINER 59 2 ROSYFACE SHINER 67 ROSYFACE SHINER 58 ROSYFACE SHINER 54 ROSYFACE SHINER 61 ROSYFACE SHINER 58 ROSYFACE SHINER 63 ROSYFACE SHINER 59 ROSYFACE SHINER 61 SPOTFIN SHINER 70 SPOTFIN SHINER 62 SPOTFIN SHINER 61 SPOTFIN SHINER 61 MIMIC SHINER 58 MIMIC SHINER 56 MIMIC SHINER 66 MIMIC SHINER 56 BLUNTNOSE MINNOW 65 FATHEAD MINNOW 63 3 BULLHEAD MINNOW 50 1 STONECAT 175 65 BROOK SILVERSIDE 66 2 ROCK BASS 63 6 ROCK BASS 83 13 ROCK BASS 68 7 ROCK BASS 60 4

G-80 19B8-99 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT R-CK BASS ...... ------ROCK BASS 54 4 ROCK BASS 56 4 ROCK BASS 5250 3 ROCK BASS 40 1 DRANSESPOTTED SUNFISH 82 16 BLUEGILL 63 5 BLUEGILL 44 1 LONGEAR SUNFISH 97 K6 SMALLMOUTH BASS 91 7 WHITE CRAPPIE 110 15 WHITE CRAPPIE 66 3 WHITE CRAPPIE 40 1 LOSPERCH 78 6 LOGPERCH 81 5 LOGPERCH 71 3 DATE: 03MAY89 EMERALD SHINER B6 5 ROSYFACE SHINER 66 2 SPOTFIN SHINER 74 SPOTFIN SHINER 78 MIMIC SHINER 63 MIMIC SHINER 55 MIMIC SHINER 5? MIMIC SHINER 52 MIMIC SHINER 63 BLUNTNOSE MINNOW 64 3 FATHEAD MINNOW 62, 2 BULLHEAD MINNOW 52 1 GOLDEN REDHORSE 330 400 CHANNEL CATFISH 193 63 BROOK SILVERSIDE 65 ROCK BASS 75 8 ROCK BASS 66 5 ROCK BASS 61 5 ROCK BASS 57 4 ROCK BASS 60 5 ROCK BASS 45 2 GREEN SUNFISH 142 57 ORANGESPOTTED SUNFISH 37 1 BLUEGILL 147 78 BLUEGILL 151 87 BLUEGILL 177 140 SMALIMDUTH BASS 92 9 SMALLMOUTH BASS 90 7 BLACK CRAPPIE 45 1 LOGPERCH 82 5 DATE: O0MAY89 GOLDEN SHINER 94 9 STRIPED SHINER 48 STRIPED SHINER 44 ROSYFACE SHINER 63 ROSYFACE SHINER 57 SPOTFIN SHINER 73 3 MIMIC SHINER 53 MIMIC SHINER 57 DLUNTNOSE MINNOW 87 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 65 BLUNTNOSE MINNOW 62 UILLBACK 90 S•JORTHEAD REDHORSE 86 6 DATE: 09MAY89 GOLDEN SHINER 99 BOLDEN SHINER 96

G-81 1989-99 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT NEI6HT EMERALD SHINER 84 5 STRIPED SHINER 150 39 ROSYFACE SHINER 66 2 SPOTFIN SHINER 90 SPOTFIN SHINER 59 SPOTFIN SHINER 72 SPOTFIN SHINER 61 SPOTFIN SHINER 60 SPOTFIN SHINER 57 19 MIMIC SHINER 49 1 BLUNTHOSE MINNOW 66 BLUNTNOSE MINNOW 63 BLUNTNOSE MINNOW 62 II BULLHEAD MINNOW 72 BULLHEAD MINNOW 55 BULLHEAD MINNOW 60 BULLHEAD MINNOW 72 14 GOLDEN REDHORSE 350 475 CHANNEL CATFISH 83 4 CHANNEL CATFISH 60 2 GREEN SUNFISH 137 50 SMALLMOUTH BASS 86 6 DATE: MONAY89 PALLID SHINER 57 2 ROSYFACE SHINER 62 ROSYFACE SHINER 65 ROSYFACE SHINER 63 ROSYFACE SHINER 71 ROSYFACE SHINER 61 ROSYFACE SHINER 51 SPOTFIN SHINER 78 SPOTFIN SHINER 66 SAND SHINER 59 BLUNTNOSE MINNOW 67 BLUNTNOSE MINNOW 66 BLUNINOSE MINNOW 62 BLUNINOSE MINNOW 6t BLUNINOSE MINNOW 64 BLUNTNOSE MINNOW 64 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 67 BLUNTNOSE MINNOW 68 36 CHANNEL CATFISH 67 21 STONECAT 124 STONECAT 136 25 ROCK BASS 70 B ROCK BASS 37 I LONGEAR SUNFISH 39 1 SMALLMOUTH BASS 113 12 DATE: 15MAY89 ROSYFACE SHINER 43 1 SPOTFIN SHINER 53 SPOTFIN SHINER 53 SPOTFIN SHINER 52 SAND SHINER 52 BLUNTNOSE MINNOW 63 BLUNTNOSE MINNOW 66 BLUNTNOSE MINNOW 67 BLUNTNOSE MINNOW 62 BLUNTNOSE MINNOW 57 FATHEAD MINNOW 58 2 STONECAT 160 32 STONECAT 77 6 BROOK SILVERSIDE 73 2 ROCK BASS 41 1 SMALLMOUTH BASS 77 5 SMALLMOUTH BASS 120 16 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT PALLID SHINER 54 PALLID SHINER 52 STRIPED SHINER 126 25 ROSYFACE SHINER 67 2 SPOTFIN SHINER 73 SPOTFIN SHINER 74 STONECAT 131 27 STONECAT 172 48 ROCK BASS 62 5 LON6EAR SUNFISH 84 15 SMALLMOUTH BASS 98 8 WHITE CRAPPIE 60 2 LOGPERCH 70 4 SLENDERHEAD DARTER 79 6 DATE: 17HAY89 GIZZARD SHAD 115 18 GOLDEN SHINER 87 GOLDEN SHINER 92 13 ROSYFACE SHINER 65 1 SPOTFIN SHINER 66 2 MIMIC SHINER 46 1 BLUNTNOSE MINNOK 66 BLUNTMOSE MINNOW 62 BLUNTNOSE MINNOW 60 STONECAT 163 38 ROCK BASS 85 7 ROCK BASS 72 4 ROCK BASS 101 B ROCK BASS 102 10 BLUEGILL 165 110 DATE: 22MAY89 STRIPED SHINER 182 70 MIMIC SHINER 63 4 SUCKERMOUTH MINNOW 87 8 BLUNTNOSE MINNOW 66 BLUNTNOSE MINNOW 62 7 FATHEAD MINNOW 48 1 CHANNEL CATFISH 76 3 ROCK ASS 60 5 GREEN SUNFISH 36 1 LONGEAR SUNFISH 35 I SNALLMOUTH BASS 95 8 DATE: 23MAY89 GIZZARD SHAD 117 to GOLDEN SHINER 92 GOLDEN SHINER 91 . 13 MIMIC SHINER 50 MIMIC SHINER 50 2 BLUNTNOSE MINNOW 95 ILUNTNOSE MINNOW 97 BLUNTNOSE MINNOW 91 , 24 FATHEAD MINNOW 58 2 GUILLBACK 414 1290 SLACK REDHORSE 272 1t0 CHANNEL CATFISH 99 7 CHANNEL CATFISH 66 4 BROOK SILVERSIDE 74 BROOK SILVERSIDE 77 ROCK BASS 71 9 ROCK BASS el 1o ROCK BASS 66 7 LONGEAR SUNFISH 3B I SMALLROUTH BASS II1 10 SHALLMOUTH BASS 103 a SNALLMOUTH BASS 85 5

G-83 1989-89 BRAIDWOOD STATION IMPINGEMENT STUDY . . °. . .• . . . m . . . •~...... ° ...... ° ...... ° ..o...... o.....° PLUS BATCH SPECIES LENGTH WEIGHT COUNT HEIGHT PALLID SHINER 56 2 E[ERALD SHINER 95 8 ROSYFACE SHINER 76 3 SPOTFIN SHINER 80 5 BLUNTNOSE MINNOW 51 1 STONECAT 145 34 STONECAT 163 42 SHALLMOUTH BASS B2 5 SMALLMOUTH BASS 102 9 DATE: 29MAY89 PALLID SHINER 55 STRIPED SHINER 152 STRIPED SHINER 157 STRIPED SHINER 135 STRIPED SHINER 110 STRIPED SHINER 65 STRIPED SHINER 65 150 ROSYFACE SHINER 67 SPOTFIN SHINER 57 MIMIC SHINER 55 MIMIC SHINER 57 MIMIC SHINER 52 MIMIC SHINER MIMIC SHINER BLUNTNOSE MINNOW 95i.c BLUNTNOSE MINNOW 72 BLUNTNOSE MINNOW 85 BLUNTNOSE MINNOW 60 21 BULLHEAD MINNOW 67 SHORTHEAD REDHORSE 57 CHANNEL CATFISH 96 STONECAT 64 BROOK SILVERSIDE 77 BROOK SILVERSIDE 76 ROCK BASS 87 ROCK BASS 67 ROCK BASS 70 ROCK BASS 70 ROCK BASS 63 ROCK BASS 57 ROCK BASS 52 ROCK BASS 52 ROCK BASS 42 ROCK BASS 47 ROCK BASS 43 ORANGESPOTTED SUNFISH 95 LON6EAR SUNFISH 52 LONGEAR SUNFISH 53 LONGEAR SUNFISH 47 LONGEAR SUNFISH 42 LONGEAR SUNFISH 47 LONGEAR SUNFISH 36 LONGEAR SUNFISH 33 LONGEAR SUNFISH 35 LONSEAR SUNFISH 36 LON6EAR SUNFISH 40 LONGEAR SUNFISH 46 LONGEAR SUNFISH 43 LONSEAR SUNFISH 38 LONGEAR SUNFISH 34 LONGEAR SUNFISH 41 LONGEAR SUNFISH 36 LONGEAR SUNFISH 41 LONSEAR SUNFISH 42 LONGEAR SUNFISH 36 LONGEAR SUNFISH 42 LON6EAR SUNFISH 36 LONGEAR SUNFISH 35 LONSEAR SUNFISH 37

r.-R4 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT LONGEAR SUNFISH 36 . LONGEAR SUNFISH 31 1 LONGEAR SUNFISH 38 1 SMALLMOUTH BASS 113 16 SNALLMOUTH BASS 155 32 SNALLHOUTH BASS BG 7 SINALLMOUTH BASS 70 3 SMALLMOUTH BASS 78 4 SMALLMOUTH BASS 82 4 BLACK CRAPPIE 140 40 BLACKSIDE DARTER 66 2 DATE: 30MAYB9 BOLDEN SHINER 69 PALLID SHINER 57 GHOST SHINER 48 GHOST SHINER 47 STRIPED SHINER 118 STRIPED SHINER 60 STRIPED SHINER 77 STRIPED SHINER 80 STRIPED SHINER 61 STRIPED SHINER 81 SPOTFIN SHINER 85 SPOTFIN SHINER 60 SPOTHFN SHINER 70 SAND SHINER 61 MIMIC SHINER 57 MIMIC SHINER 56 MIMIC SHINER 73 MIMIC SHINER 48 BLUNTNOE MINNOW 70 BLUNTNOSE MINNOW 61 BLUNINOSE MINNON 76 FATHEAD MINNOW 55 GOLDEN REDHORSE 65 GOLDEN REDHORSE 64 SHORTHEAD REDHORSE 63 SHORTHEAD REDHORSE 110 UNID MOXOSTOMA 51 YELLOW BULLHEAD 136 CHANNEL CATFISH 65 STONECAT 135 STONECAT 151 BROOK SILVERSIDE 72 BROOK SILVERSIDE 78 ROCK BASS 71 ROCK BASS 75 ROCK BASS 60 ROCK BASS 64 ROCK BASS 56 ROCK BASS 54 ROCK BASS 53 ROCK BASS 43 ORANGESPOTTED SUNFISH B9 DIANSESPOITED SUNFISH so ORANGESPOTTED SUNFISH 77 ORANGESPOTTED SUNFISH 52 BLUEGILL 92 LONBEAR SUNFISH 58 LONGEAR SUNFISH 50 LONGEAR SUNFISH 42 LONGEAR SUNFISH 42 LONGEAR SUNFISH 40 LONGEAR SUNFISH 34 LONGEAR SUNFISH 40 LONGEAR SUNFISH 37 SMALLMOUTH BASS 110 SNALLMOUTH BASS 95 GSALLNOUTH BASS 100

G-85 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT SMALLMOUTH BASS 78 5 SLENDERHEAD DARTER 53 1 DATE: 31MAY89 NORTHERN PIKE 77 2 NORTHERN PIKE 89 5 GOLDEN SHINER 145 6OLDEN SHINER 112 GOLDEN SHINER 77 70 PALLID SHINER 55 2 PALLID SHINER 47 PALLID SHINER 52 STRIPED SHINER 70 STRIPED SHINER 8o ROSYFACE SHINER 58 ROSYFACE SHINER 56 ROSYFACE SHINER 5F ROSYFACE SHINER 64 SPOTFIN SHINER 55 2 MIMIC SHINER 65 MIMIC SHINER 5B MIMIC SHINER 58 MIMIC SHINER 60 MIMIC SHINER 48 MIMIC SHINER 43 MIMIC SHINER 61 MIMIC SHINER 42 MIMIC SHINER 56 17 BLUNINOSE MINNOW 88 BLUNTNOSE MINNOW 75 BLUNTNOSE MINNOW 60 BLUNTNOSE MINNOW 61 BLUNTN03E MINNOW 60 22 FATHEAD MINNOW 72 3 BULLHEAD MINNOW 72 BULLHEAD MINNOW 54 BULLHEAD MINNOW 43 GOLDEN REDHORSE 68 UNID MOXOSTOMA 5B 2 YELLOW BULLHEAD 142 34 CHANNEL CATFISH 63 2 STONECAT 145 37 STONECAT 175 50 STONECAT 77 3 BROOK SILVERSIDE 65 2 ROCK BASS 62 5 ORANGESPOTTED SUNFISH 76 a ORANGESPOTTED SUNFISH 92 18 ORANBESPOTTED SUNFISH 85 14 LONGEAR SUNFISH 48 2 LONGEAR SUNFISH 44 1 LONGEAR SUNFISH 50 3 LONGEAR SUNFISH 48 2 LONGEAR SUNFISH 43 I SMALLMOUTH BASS 84 6 SMALLMOUTH BASS 164 50 SMALLNOUIH BASS 80 4 SNALLMOUTH BASS 130 is WHITE CRAPPIE 115 16 DATE: 05JUN89 GRASS PICKEREL 83 4 PALLID SHINER 58 2 STRIPED SHINER 177 STRIPED SHINER 69 STRIPED SHINER B8 STRIPED SHINER 63 STRIPED SHINER 54 .9 SPOTFIN SHINER 81 1988-89 BRAIDNWOD STATION INPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT KEIGHT SPOTFIN SHINER 92 . SPOTFIN SHINER 82 SAND SHINER 62 2 . MIMIC SHINER 62 MIMIC SHINER 63 BLUNTNOSE MINNOW 95 9 ONIO MOXOSTOMA 56 . ORAN6ESPOTTED SUNFISH 52 2 ORANGESPOTTED SUNFISH 50 2 BLUEGILL 73 6 SNALLNOUTH BASS 123 12 SMALLMOUTH BASS e1 5 SMALLMOUTH BASS 83 6 SNALLMOUTH BASS 86 7 DATE: 06JUN89 PALLID SHINER 55 2 STRIPED SHINER 122 STRIPED SHINER 91 STRIPED SHINER 87 STRIPED SHINER 98 STRIPED SHINER 87 57 SPOTFIN SHINER 62 SPOTFIN SHINER 67 SPOTFIN SHINER 60 SPOTFIN SHINER 83 14 BLUNTNOSE MINNOW 88 9 RIVER REDHORSE 107 12 TADPOLE MADTON 76 5 ROCK BASS 67 6 SNALLHOUTH BASS 91 8 BLACK CRAPPIE 52 2 DATE: 07JUN89 61ZZARD SHAD 208 55 6OLDEN SHINER 81 4 STRIPED SHINER 137 STRIPED SHINER 184 STRIPED SHINER 76 STRIPED SHINER 135 STRIPED SHINER 70 165 ROSYFACE SHINER 71 a ROSYFACE SHINER 58 ROSYFACE SHINER 68 SPOTFIN SHINER 72 2 a SPOTFIN SHINER 77 , a SPOTFIN SHINER 80 SPOTFIN SHINER 81 ta MIMIC SHINER 65 3 SILVER REDHORSE 118 20 a YELLOW BULLHEAD 172 55 a CHANNEL CATFISH 76 4 ROCK BASS 83 14 ORANGESPOTTED SUNFISH 77 10 LONBEAR SUNFISH 36 1 , SNALLNOUTH BASS 104 7 BANDED DARTER 42 1 . DATE: 12JUN89 HORNYHEAD CHUB 124 22 STRIPED SHINER 175 70 a a SPOTFIN SHINER 72 4 . a MIMIC SHINER 56 2 BLUNTNOSE MINNOW 91 9 , a BULLHEAD MINNOW 63 4 SHORTHEAD REDHORSE 93 5 , CHANNEL CATFISH 92 7 a a ROCK BASS 6s 7 a a

G-87 1988-99 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH #EIGHT COUNT WEIGHT WHITE CRAPPIE 140 33 DATE: 13JUN89 GIZZARD SHAD 212 60 MIMIC SHINER 51 1 BtUNINOSE MINNOW 91 10 BULLHEAD MINNOW 72 4 ROCK BASS 63 5 ROCK BASS 70 6 ROCK BASS 70 7 ROCK BASS 70 8 ROCK BASS 59 4 GREEN SUNFISH 36 I ORANGESPOTTED SUNFISH 43 1 BLUEGILL 6l 4 LONBEAR SUNFISH 53 3 DATE: 14JUN89 HORNYHEAD CHUB 95 11 GHOST SHINER 50 2 STRIPED SHINER 110 STRIPED SHINER 78 23 ROSYFACE SHINER 70 3 SPOTFIN SHINER 90 SPOTFIN SHINER 64 SPOTFIN SHINER 70 15 MIMIC SHINER 69 MIMIC SHINER 52 MIMIC SHINER 51 5 BLUNTHOSE MINNOW 64 3 OVILLbAC• 129 18 SHORTHEAD REDHORSE 97 8 SHORIHEAI REDHORSE 70 4 CHANNEL CATFISH 81 5 STONECAT 170 55 ROCK BASS 47 3 GREEN SUNFISH 32 1 BLUEGILL 39 i LONGEAR SUNFISH 50 3 WHITE CRAPPIE 137 28 DATE: 19JUNB9 COMMON CARP 43 2 SPOTFIN SHINER 61 SPOTFIN SHINER 8II MIMIC SHINER 60 2 CHANNEL CATFISH 101 8 GREEN SUNFISH 42 I ORANGESPOTTED SUNFISH 86 15 ORANGESPOTTED SUNFISH 81 12 LONGEAR SUNFISH 120 50 LONGEAR SUNFISH 43 2 LON6EAR SUNFISH 47 2 DATE: 20JUN89 GIZZARD SHAD 200 50 COMMON CARP 46 2 CHANNEL CATFISH 97 • CHANNEL CATFISH 75 3 ROCK BASS 116 35 ROCK BASS 56 4 BLUESILL 61 5 IONSEAR SUNFISH 57 4 LONBEAR SUNFISH 42 1 WHITE CRAPPIE 96 to WHITE CRAPPIE 120 20 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT

HORNYHEAD CHUB 153 35 STRIPED SHINEP 87 STRIPED SHINER 73 STRIPED SHINER 81 18 SPOTFIN SHINER 81 5 SPOTFIN X RED SHINER 72 7 CHANNEL CATFISH 82 6 STONECAT 83 6 ROCK BASS 71 1 BLUEGILL 59 3 LONGEAR SUNFISH 41 I LON6EAR SUNFISH 41 1 LONGEAR SUNFISH 44 2 DATE: 26JUN89 BRASS PICKEREL fO1 , STONECAT 143 42 BLUEGILL 52 2 BLUEGILL 64 5 WHITE CRAPPIE 34 1 DATE: 27JUN89 BRASS PICKEREL 91 6 BRASS PICKEREL 92 6 HORNYHEAD CHUB 74 5 STRIPED SHINER 118 STRIPED SHINER 58 STRIPED SHINER 96 STRIPED SHINER 72 STRIPED SHINER 65 . 33 SPOTFIN SHINER 96 SPOTFIN SHINER 72 SPOTFIN SHINER 55, SPOTFIN SHINER 84 23 REDFIN SHINER 57 2 BLUNTNOSE MINNOW 90 BLUNTNOSE MINNOW 951 BLUEGILL 40 . LARGEMOUTH BASS 54 I DATE: 28JUN89 HORNYHEAD CHUB 117 18 GHOST SHINER 30 1 STRIPED SHINER 71 STRIPED SHINER 62 STRIPED SHINER 75 11 ROSYFACE SHINER 86 4 SPOTFIN SHINER 66 SPOTFIN SHINER 76 SPOTFIN SHINER 77 SPOTFIN SHINER 64 SPOTFIN SHINER 8e 27 CHANNEL CATFISH 61 2 BREEN SUNFISH 37 I BLACK CRAPPIE 150 41 BLACK CRAPPIE 115 20 DATE: 04JUL89 GOLDEN SHINER 77 6 SPOTFIN SHINER 76 SPOTFIN SHINER 9o SPOTFIN SHINER 62 MIMIC SHINER 49 1 BLUNTNOSE MINNOW 62 3 GOLDEN REDHORSE 103 14

G-89 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GREEN SUNFISH 47 2 DATE: 05JUL89 STRIPED SHINER 97 1i SPOTFIN SHINER 86 SPOTFIN SHINER 72 SPOTFIN SHINER 82 I7 STONECAT 151 29 STONECAT 162 70 STONECAT 136 27 ROCK BASS 72 to SMALLNOUTH BASS 134 25 SMALLMOUTH BASS 85 7 BLACK CRAPPIE 94 12 LOGPERCH 82 5 DATE: 1OJUL89 HORNYHEAD CHUB 109 14 SPOTFIN SHINER 68 3 BULLHEAD MINNOW 59 3 SMALLMOUTH BASS 109 14 DATE: 11JUL89 HORNYHEAD CHUB 92 11 SAND SHINER 62 2 BULLHEAD MINNOW 62 BULLHEAD MINNOW 63 ROCI. BASS 110 26 ROCK BASS 16() 5 LONGEAR SUNFISH 113 41 DATE: 12JUL89 GRASS PICKEREL 93 6 STRIPED SHINER 88 STRIPED SHINER 82 .1 SPOTFIN SHINER 82 SPOTFIN SHINER 70 10 GOLDEN REDHORSE 342 470 STONECAT 166 43 STONECAT 124 18 STONECAT 163 42 ROCK BASS 62 5 BLUEGILL 53 3 SMALLOUTH BASS 96 10 DATE: 17JUL89 SPOTFIN SHINER 71 4 MIMIC SHINER 53 I STONECAT 131 22 ORANGESPOTTED SUNFISH 51 3 BLUEGILL 54 3 SNALLWOUTH BASS 94 10 SNALLNOUTH BASS 94 10 SNALLMOUITH BASS 107 14 SIALLNOUTH BASS 87 10 DATE: IBJUL99 GOLDEN SHINER 94 5 STRIPED SHINER 86 STRIPED SHINER 76 STRIPED SHINER 91 STRIPED SHINER 68 , 20 SPOTFIN SHINER 86 5 SAND SHINER 62 2 NIMIC SHINER 67 2

G-90 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT BLACK BULLHEAD 67 5 BLACK BULLHEAD 56 3 STONECAT 110 13 STONECAT 180 75 ROCK BASS 71 7 ROCK BASS 77 9 ROCK BASS 63 5 ROCK BASS 64 6 ROCK BASS 62 5 ROCc BASS 56 4 ROCK BASS 50 3 ROCK BASS 54 3 GREEN SUNFISH 42 i ORANGESPOITED SUNFISH 48 2 ORANSESPOTTED SUNFISH 92 I5 ORANGESPOTTED SUNFISH 8ý 16 ORANGESPOTTED SUNFISH 65 6 BLUEGILL L2 7 BLUEGILL 66 5 LONSEAR SUNFISH 67 7 LONGEAR SUNFISH 64 6 LONGEAR SUNFISH 43 2 LONGEAR SUNFISH 56 4 LONGEAR SUNFISH 62 5 LONGEAR SUNFISH 48 3 LONGEAR SUNFISH 57 3 LONGEAR SUNFISH 50 2 LONBEAR SUNFISH 47 2 LONGEAR SUNFISH 48 2 LON6EAR SUNFISH 52 3 LONSEAR SUNFISH 44 2 LONGEAR SUNFISH 54 3 LONGEAR SUNFISH 52 3 LONGEAR SUNFISH 40 1 LONSEAR SUNFISH 44 2 LONBEAR SUNFISH 52 3 LONSEAR SUNFISH 51 3 LONGEAR SUNFISH 50 2 LONGEAR SUNFISH 57 5 LONGEAR SUNFISH 55 4 LONGEAR SUNFISH 48 3 LONGEAR SUNFISH 54 3 LONGEAR SUNFISH 47 2 LONGEAR SUNFISH 47 2 LONGEAR SUNFISH 48 3 LONSEAR SUNFISH 42 2 LONGEAR SUNFISH 43 2 LONSEAR SUNFISH 49 3 LONGEAR SUNFISH 42 2 LONSEAR SUNFISH 39 6i SNALLMOUTH BASS 12i 2i LOBPERCH 94 6 DATE: 19JUL89 GRASS PICKEREL 62 3 HORNYHEAD CHUB 62 3 EMERALD SHINER 87 4 MIMIC SHINER 43 MIMIC SHINER 58 BLACK BULLHEAD 58 2 STONECAT 144 30 STONECAT 122 20 ROCK BASS 130 50 ROCK BASS 77 9 ROCK BASS el 10 ROCK BASS 74 7 ROCK BASS so 10 GREEN SUNFISH 135 47 LON6EAR SUNFISH 57 4 LONGEAR SUNFISH 55 3

c--Qa 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY

PLUS BATCH SPECIES LENGTH HE1GHT COUNT WEIGHT LONGEAR SUNFISH 51 3 --- LONGEAR SUNFISH 45 2 SNALLMOUTH BASS 90 9 WHITE CRAPPIE 122 22 DATE. 31JUL89 LON6NOSE GAR 90 2 BLUNTNOSE MINNOW 49 1 UNID CARPIODES 64 4 DATE: 01AUG89 ROCK BASS 80 13 SMALLMOUTH BASS 138 29 DATE: 02AUG89 ROSYFACE SHINER 61 2 SPOTFIN SHINER 78 5 DLUNTNOSE MINNOW 44 1 DATE: 07AUG89 LON6NOSE GAP 124 2 GOLDEN SHINER 79 5 FATHEAD MINNOW 67 FATHEAD MINNOW 50 BULLHEAD MINNOW 44 1 SPOTTED SUCKER 106 14 STDNECAT 134 24 STONECAT 152 26 STONEC"AT 134 17 RoCK BASS 80 10 ORANHESPOTTED SUNFISH 78 8 LONGEAR SUNFISH 106 22 HYBRID SUNFISH 60 5 SMALLMOUTH BASS 113 13 DATE: 08AUG89 GIZZARD SHAD 344 320 STRIPED SHINER 114 15 GOLDEN REDHORSE 175 65 STONECAT 120 16 STONECAT 160 38 STONECAT 140 25 STONECAT 163 41 STONECAT 160 36 ROCK BASS 76 9 LONGEAR SUNFISH 81 12 SNALLMOUTH BASS 86 8 DATE: 09AUG89 EMERALD SHINER 92 4 GOLDEN REDHORSE 106 20 SHORTHEAD REDHORSE 312 310 CHANNEL CATFISH 134 20 STONECAT 134 22 ORAN6ESPOTTED SUNFISH 69 7

DATE: 14AUG89 mimiC SHINER 64 2 CHANNEL CATFISH 136 24 STONECAT 11 19 STONECAT 134 27 STONECAT 123 16 ROCK BASS 95 23 ORANGESPOTTED SUNFISH 54 3

C_09 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT

DATE: 15AUG89 STONECAT 183 47 STONECAT 151 32 STONECAT 124 17 LONGEAR SUNFISH 117 50 DATE: 16AUGB9 COMMON CARP 265 194 NORNYHEAD CHUB 83 8 MIMIC SHINER 55 2 STONECAT 144 34 SIONECAI 152 35 STONECAT I13 23 STONECAT 137 23 ROCK BASS 192 200 ROCk BASS 52 3 ROCK BASS 70 9 BREEN SUNFISH 45 3 BLUEGILL 77 II LONGEAR SUNFISH 77 9 SMALLMOUTH BASS 99 to DATE: 17AUB89 GIZZARD SHAD L5 3 BOLDEN SHINER 88 8 DATE: 22AUG89 GHOST SHINER 48 1 ROSYFACE SHINER 66 2 SPOTFIN SHINER 64 3 MIMIC SHINER 6i MIMIC SHINER 57 4 GOLDEN REDHORSE 100 I1 DATE: 23AUG89 GIZZARD SHAD 51 COMMON CARP 300 264 ROSYFACE SHINER 73 3 SPOTFIN SHINER 67 3 MIMIC SHINER 57 1 STONECAT 167 36 LONGEAR SUNFISH 108 32 DATE: 28AUG89

DATE: 29AU689 GIZZARD SHAD 64 2 GIZZARD SHAD 41 1 GOLDEN SHINER 64 6 REDFIN SHINER s0 5 S1ONECAT 153 23 DATE: 30AUG89 HORNYHEAD CHUB 122 19 ROSYFACE SHINER 78 2 ROCK BASS 52 3 DATE: 04SEP89 I GIZZARD SHAD 51 GIZZARD SHAD 53 ! GIZZARD SHAD 51 I

G-93 1988-89 BRAIDWOOD STATION IHPINGEIENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 36 GIZZARD SHAD 43 COMHON CARP 43 2 SUCKERHOUTH MINNOW 53 2 STONECAT 140 27 STONECAT 133 23 LONGEAR SUNFISH 42 2 DATE: 25SEPB9 BLUEGILl 70 7 BLUEGILL 64 6 BLUEGILL 72 7 BLUEGILL 31 15 BLUEGILL 33 LONGEAR SUNFISH 82 LONGEAR SUNFISH 68 B LONGEAR SUNFISH 57 4 LONGEAR SUNFISH 34 1 DATE: 26SEP89 LONSEAR SUNFISH 115 45 LONGEAR SUNFISH 75 15 DATE: 27SEP89 GIZZARD SHAD 76 4 GIZZARD SHAD 54 2 GIZZARD SHAD 56 2 GIZZARD SHAD 50 2 GOLDEN SHINER 85 5 BLUEGILL 71 6 LONGEAR SUNFISH 64 5 SNALLMOUTH BASS 112" 17 LARGEOUTH BASS 59 3 WHITE CRAPPIE II() 17 WHITE CRAPPIE 60 2 DATE: 02OCT89 GIZZARD SHAD 73 4 GIZZARD SHAD 83 6 STONECAT 158 39 LONGEAR SUNFISH 77 I0 LONGEAR SUNFISH 6l 5 DATE: 030CT89 GIZZARD SHAD 56 2 LON6EAR SUNFISH 67 7 DATE: 04OCT89 6 GIZZARD SHAD 86 I GIZZARD SHAD 68 4 SHORTHEAD REDHORSE 379 365 YELLOW BASS 153 45 |

G-94 APPENDIX H

IMPINGEMENT -- TEMPERATURE AND DISSOLVED OXYGEN MEASUREMENTS, 1988-1989

H-I WATER QUALITY DATA - 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY

WATER TEMPERATURE (C) DISSOLVED OXYGEN (mg/L)

DATE SURFACE MIDDLE BOTTOM SURFACE MIDDLE BOTTOM -(a) 11OCT88 11.0 11.0 11.0 120CT88 9.2 9.0 9.0 170CT88 14.0 14.0 14.0 11.1 180CT88 12.6 12.6 12.4 11.2 11.4 190CT88 11.7 11.6 11.6 13.8 13.4 13.5 240CT88 7.2 7.0 6.9 10.7 11.0 11. 1 250CT88 7.0 7.0 7.0 12.6 13.0 12.5 26OCT88 7.1 6.8 6.8 11.8 12.2 12.5 31OCT88 7.4 7.3 7.3 13.5 13.5 13.6 01NOV88 6.0 6.0 6.0 13.0 14.0 13.5 02NOV88 6.2 6.2 6.2 13.9 14.1 14.3 07NOV88 6.4 6.2 6.2 15.4 15.6 15.8 08NOV88 6.7 6.6 6.5 16.6 16.4 16.4 09NOV88 6.4 6.3 6.3 16.4 16.6 16.4 11NOV88 7.5 7.4 7.4 13.2 13.4 13.1 15NOV88 9.0 9.0 9.0 13.2 13.0 13.0 16NOV88 7.2 7.2 7.2 13.8 13.2 13.1 21NOV88 6.8 6.4 .6.4 16.2 16.4 16.3 22NOV88 6.0 6.0 6.0 12.0 12.4 12.6 28NOV88 5.4 5.3 5.2 12.8 13.0 12.9 29NOV88 5.0 4.9 4.9 13.9 13.9 14.0 30NOV88 3.2 3.1 3.1 16.2 16.4 16.3 05DEC88 3.4 3.3 3.3 13.2 13.6 13.6 06DEC88 3.0 3.0 3.4 17.0 16.0 15.2 07DEC88 2.9 3.0 3.0 17.0 16.7 16.0 12DEC88 1.0 1.0 1.0 16.0 18.2 19.0 13DEC88 0.0 0.0 0.0 13.8 14.0 14.0 14DEC88 1.2 1.1 1.1 16.8 18.0 19.6 19DEC88 1.0 0.5 0.5 13.1 13.4 14.1 21DEC88 0.8 0.8 0.6 12.6 12.9 12.8 26DEC88 1.2 1.3 1.1 14.2 14.6 14.8 27DEC88 1.1 1.1 1.0 13.9 13.6 13.6 28DEC88 0.0 0.0 0.2 13.4 13.4 13.4 02JAN89 0.0 0.0 0.0 14.7 15.0 15.0 03JAN89 0.0 0.0 1.0 12.9 13.2 13.3 04JAN89 0.0 0.0 0.8 13.0 13.2 13.4 09JAN89 0.0 0.5 1.0 12.9 13.1 13.2 10JAN89 0.0 0.5 1.0 13.0 13.2 13.6 11JAN89 0.6 0.9 1.0 12.4 12.6 12.8 16JAN89 0.2 0.2 0.7 12.8 12.8 12.8 17JAN89 1.0 1.0 1.2 12.6 12.6 12.6 18JAN89 1.5 1.5 1.5 12.4 12.4 12.4 23JAN89 2.0 2.0 2.2 12.0 12.2 12.4 24JAN89 3.0 3.0 3.2 12.2 12.0 11.9 25JAN89 4.0 4.0 4.3 11.4 11.8 12.1 30JAN89 4.3 4.5 5.0 11.4 11.6 11.8 31JAN89 5.5 5.3 5.3 10.8 11.2 12.6 01FEB89 4.0 4.0 4.0 11.8 12.4 12.9

H-2 WATER QUALITY DATA - 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY

WATER TEMPERATURE (C) DISSOLVED OXYGEN (mg/L)

DATE SURFACE MIDDLE BOTTOM SURFACE MIDDLE BOTTOM

07FEB89 0.0 0.0 0.0 13.8 14.6 15.2 13FEB89 0.0 0.0 0.0 12.4 13.4 13.6 14FEB89 0.0 0.0 0.0 12.8 13.6 13.6 15FEB89 0.0 0.0 0.0 13.4 13.4 13.4 20FEB89 0.0 0.0 0.0 12.8 13.0 13.2 21FEB89 0.0 0.0 0.0 13.2 13.4 13.8 22FEB89 0.0 0.0 0.5 13.2 13.4 13.8 27FEB89 0.0 0.0 0.0 13.0 13.2 13.4 28FEB89 0.0 0.0 0.0 13.5 13.6 13.8 01MAR89 0.0 0.0 0.0 13.5 13.7 13.8 06MAR89 0.0 0.0 0.0 13.1 13.4 13.3 07MAR89 0.0 0.0 0.0 13.2 15.0 15.8 08MAR89 0.0 0.0 0.0 13.2 13.4 13.8 13MAR89 0.0 0.0 0.0 14.4 14.2 14.4 14MAR89 0.0 0.0 0.0 14.4 14.6 14.4 15MAR89 4.0 4.0 4.0 11.6 12.4 12.2 20MAR89 2.0 2.0 2.0 11.2 12.2 12.4 21MAR89 2.0 2.0 2.0 12.2 12.4 12.4 22MAR89 4.8 4.4 4.4 12.9 13.4 12.2 27MAR89 6.0 6.0 6.0 13.9 12.9 13.9 28MAR89 6.5 6.5 6.5 13.9 13.7 13.2 10APR89 7.0 7.0 7.0 13.4 13.2 13.4 11APR89 *7.0 7.0 7.0 12.9 12.9 12.7 12APR89 7.6 7.6 7.5 11.0 11.1 10.0 19APR89 9.8 9.8 9.8 10.0 10.0 9.9 24APR89 16.0 15.6 15.4 25APR89 16.2 16.2 16.2 7.7 7.8 7.8 26APR89 17.1 17.2 17.1 7.4 7.5 7.5 01MAY89 NC NC NC 7.9 8.0 7.8 02MAY89 12.8 12.8 12.8 8.5 8.5 8.5 03MAY89 13.6 13.6 13.6 8.6 8.6 8.6 08MAY89 13.2 13.1 13.1 8.5 8.5 8.5 09MAY89 12.7 12.7 12.6 9.3 9.3 9.3 10MAY89 13.3 13.2 13.1 9.4 9.4 9.4 15MAY89 15.6 15.6 15.6 9.6 10.4 11.0 16MAY89 17.8 17.8 17.8 8.7 9.1 9.2 17MAY89 18.9 18.9 18.9 8.9 8.7 8.7 22MAY89 17.0 17.0 17.0 8.7 8.7 8.7 23MAY89 18.4 18.4 18.4 8.5 8.5 8.5 24MAY89 20.3 20.2 20.2 8.3 8.3 8.4 29MAY89 23.8 23.8 23.8 8.8 8.8 8.9 30MAY89 20.8 20.8 21.0 8.8 8.9 8.1 31MAY89 20.7 20.4 20.4 8.7 8.7 8.9 05JUN89 20.2 20.1 20.1 8.5 8.7 8.3 06JUN89 20.2 20.2 20.2 7.9 8.1 8.1 07JUN89 20.8 20.8 20.0 8.4 8.4 8.1 12JUN89 19.4 19.4 19.4 8.4 8.2 8.1 13JUN89 19.6 19.6 19.6 9.3 9.1 8.5

H-3 WATER QUALITY DATA - 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY ------

WATER TEMPERATURE (C) DISSOLVED OXYGEN (mg/L)

DATE SURFACE MIDDLE BOTTOM SURFACE MIDDLE BOTTOM

14JUN89 19.0 19.0 19.0 7.7 7.7 7.6 19JUN89 20.4 20.4 20.4 7.4 7.4 6.9 20JUN89 21.6 21.6 21.6 6.9 6.9 6.9 21JUN89 22.8 22.8 22.8 6.8 6.8 6.8 26JUN89 25.4 25.4 25.4 6.1 6.3 6.4 27JUN89 23.6 23.2 23.0 6.2 6.0 5.8 28JUN89 22.2 22.2 22.2 6.8 6.8 6.8 04JUL89 25.8 25.8 25.6 6.8 6.9 6.9 05JUL89 27.0 26.8 26.8 6.8 6.8 6.9 10JUL89 31.2 31.2 31.2 8.5 8.4 8.3 11JUL89 26.4 26.2 26.0 5.9 5.6 5.6 12JUL89 25.8 25.6 25.0 6.4 6.6 6.6 17JUL89 26.2 26.0 26.0 7.5 7.5 7.6 18JUL89 19.4 19.2 19.2 6.7 6.7 6.9 19JUL89 19.2 19.0 19.0 6.6 6.7 6.7 31JUL89 24.2 24.2 24.0 6.2 6.4 6.4 01AUG89 25.6 25.4 25.4 6.6 6.7 6.7 02AUG89 26.6 26.4 26.3 6.7 6.7 6.7 07AUG89 23.2 23.1 23.0 8.2 8.2 8.1 08AUG89 23.8 23.6 23.6 8.3 8.1 8.0 09AUG89 24.8 24.6 24.6 8.5 8.6 8.8 14AUG89 24.2 24.0 24.0 7.4 7.5 7.5 15AUG89 24.6 24.6 24.6 8.8 8.8 8.8 16AUG89 24.2 24.0 23.9 9.2 9.4 9.5 17AUG89 25.4 25.2 25.2 8.2 8.1 8.1 22AUG89 24.4 24.2 24.2 6.9 7.1 7.1 23AUG89 23.2 23.1 23.0 6.2 6.0 6.0 28AUG89 25.3 25.3 25.3 6.3 6.3 6.4 29AUG89 24.8 24.8 24.8 6.9 7.1 6.9 30AUG89 25.2 25.2 25.0 7.5 7.5 7.2 04SEP89 20.0 20.1 20.1 7.2 7.2 7.2 25SEP89 14.3 14.2 14.2 8.8 8.8 8.8 26SEP89 13.4 13.4 13.4 9.1 9.2 9.1 27SEP89 13.6 13.4 13.4 9.0 8.9 8.9 020CT89 14.5 14.3 14.2 7.7 7.9 8.1 030CT89 13.2 13.1 12.8 9.1. 9.2 9.2 040CT89 12.9 12.9 12.7 9.5 9.7 9.7

(a) Dash indicates measurement was incorrect. (b) NC indicates value not collected.

H-4 APPENDIX A

PLANT OPERATING DATA

A-I SUMMARY OF BLOWDOWN VOLUMES RELEASED EACH DATE DURING THE PERIOD IN 1988 WHEN ICHTHYOPLANKTON SAMPLING WAS CONDUCTED AT THE BRAIDWOOD STATION DISCHARGE,

Day April May June 1 21.7* 20.3 19.8 2 21.8 19.5 18.8 3 21.6 20.1 19.8 4 20.9 20.2 20.0 5 20.4 19.9 20.8 6 20.9 19.8 20.5 7 20.9 19.5 20.6 8 21.1 19.2 20.6 9 20.1 21.0 21.0 10 20.3 19.2 21.3 11 20.1 19.5 21.5 12 20.0 19.4 20.9 13 20.0 19.5 21.3 14 20,0 19.3 21.3 15 20.3 19.2 20.8 16 20.7 19.6 20.7 17 20.2 19.4 21.1 18 20.3 19.4 21.2 19 20.3 21.3 20.9 20 20.5 21.8 20.6 21 20.5 21.1 20.5 22 20.9 21.1 12.6 23 20.3 20.3 14.4 24 21.0 19.7 7.7 25 20.6 21.0 12.2 26 20.0 19.6 11.8 27 20.5 19.5 8.6 28 20.7 18.8 8.4 29 20.8 19.2 10.0 30 20.3 19.7 8.4 31 19. z

* Data are in million gallons,

A-2 SUMMARY OF VOLUMES PUMPED AND THE NUMBER OF PUMPS OPERATING EACH DATE AT THE INTAKE DURING THE BRAIDWOOD IMPINGEMENT AND ENTRAINMENT STUDY.

April 1988 May June July August SeptemberNo.' No. No. No. No, No, of of of of of of Day Vol.* Pumps Vol. Pumps Vol. Pumps Vol, Pumps Vol. Pumps Vol, Pumps

1 0 0 69.12 0 0 69.12 2 0 0 69,12 36.90 0 69.12 3 0 65.28 69.12 29.02 0 69.12 4 0 31.68 69.12 0 0 69.12 5 36.26 0 69.12 55.35 0 69.12 6 70.56 0 69.12 22.95 0 69.12 7 70.56 0 69.12 57.15 0 69.12 8 54.39 0 23.04 25.65 0 69.12 9 0 0 0 0 0 64.80 10 0 56.88 0 0 0 64.80 11 0 69.12 0 0 0 64.80 69.12 0 CA 12 0 0 0 64.80 13 0 0 70.25 0 0 64.80 14 0 33.12 72.00 36.00 0 38.92 15 0 69.12 72,00 49.95 20.16 0 16 0 69.12 28.50 0 41.76 44.16 17 0 69.12 0 35.10 34.56 7.68 18 15.43 69.12 65.66 23.85 34.56 0 19 70.56 69.12 69.12 39.82 35.23 0 20 35.52 0 69.12 27.22 23,04 0 21 0 0 69.12 35.10 0 0 22 0 0 69.12 24.07 0 42.00 23 0 0 69.12 0 21.96 56.16 24 0 66.24 69.12 0 34.56 0 25 0 69.12 2.64 0 24.36 61.92 26 60.25 69.12 0 0 6.12 69,12 27 32.00 69.12 7.92 0 52.80 69,12 28 0 69.12 69.12 0 69.12 69.12 29 0 33.36 32,64 0 69.12 69,12 30 0 61.92 0 0 69.12 20.16 31 69.12 0 69.12 *Data are in million gallons October November December January 1989 February March . No. No. No. No. No. No. of of of of of of Day Vol. Pumps Vol. PUMPS Vol. Pumps Vol. PumPs Vol. Pumps Vol. \- 1 0 69.12 31.68 0 67.68 67.68 2 0 69.12 0 7.20 28.20 26.32 3 0 58.32 0 41.76 0 0 4 0 0 0 28.80 0 0 5 9.87 0 45.84 62.64 0 0 6 14.10 0 69.12 69.12 0 44.17 7 0 45.83 69.12 69.12 63.41 66.96 8 0 70.56 69.12 69.12 68.40 59.98 9 0 70.56 69.12 5.76 68.40 34.87 10 66.24 28.66 69.12 38.39 68.40 0 11 69.12 0 69.12 69.12 68.40 0 12 69.12 0 69.12 26.87 20.42 0 > 13 69.12 0 69.12 0 42.75 37.05 14 69.12 45.12 69.12 0 68.40 68.40 15 69.12 69.12 69.12 0 68.40 68.40 16 69.12 69.12 69.12 45.14 27.31 26.60 17 69.12 54.48 69.12 68.40 0 0 18 69.12 0 69.12 68.40 0 0 19 69.12 0 69.12 31.35 0 0 20 58.06 0 69.12 0 42.24 44.18 21 0 45.60 69.12 0 69.12 67.68 22 0 69.12 46.08 0 69.12 67.68 23 0 27.36 0 44.19 26.16 26.55 24 54.15 0 0 67.68 0 0 25 62.70 0 0 67.68 0 0 26 68.40 0 46.08 25.38 0 0 27 26.36 0 69.12 0 31,02 54.52 28 0 44.16 69.12 0 67.68 50.05 29 0 69.12 28.80 0 0 30 0 69.12 0 0 0 31 45.13 0 58.98 0 Apri 1 May June July August September No. No. No, 0o, No, of of of of of of Day Vol. Pumps Vol. Pumps Vol. Pumps Vol__ Pump ,.Vol, Pumps Vol. Pus

1 0 70.56 37.44 0 64.80 0 2 0 67.68 0 9.02 64.80 0 3 0 64.80 0 68.40 64.08 0 4 0 51.97 0 66.96 66.24 13.80 5 0 0 32.40 64.80 48.59 22.14 6 0 0 66.24 64.80 0 0 7 0 0 69.12 66.96 39.56 0 8 0 41.59 69.84 64.80 66.96 0 9 0 68.40 28.80 66.96 68.40 0 10 42.75 66.24 0 65.52 66.24 0 11 69.48 66.24 0 62.10 64.80 0 12 68.40 69.12 43.44 67.68 24.07 0 13 27.20 38.40 67.68 66.24 0 0 !1 14 0 0 69.12 66.24 39.13 0 15 0 55.69 67.48 61.92 59.04 0 16 0 70.56 47.77 65.52 61.92 0 17 0 67.68 0 66.24 61.92 0 18 0 36.66 0 65.52 57.60 0 19 54.28 0 42.31 46.64 54.72 0 20 30.55 0 67.68 0 54.72 0 21 0 0 66.24 0 56.16 0 22 0 39.99 64.80 0 57.60 0 23 0 68.40 6.75 0 56.16 0 24 42.78 66.24 0 0 23.60 0 25 66.96 66.96 0 0 0 42,30 26 66.96 4.42 42.75 0 0 66.24 27 66.96 0 66.24 0 0 66.24 28 66.96 0 66.24 10,56 41.40 37,26 29 66.96 62.27 35.88 31.39 67.68 0 30 66.96 69.12 0 0 67.68 0 31 67.68 42.77 48.76 October No. of Day Vol. Pumps

1 0 0 2 40.42 2 3 60.48 2 4 59.04 2 5 48.95 2 6 0 0 7 0 0 8 0 0 9 36.00 2 10 57.60 2 11 59.04 2 12 32.76 2 13 0 0 14 0 0 15 0 0 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 APPENDIX B

ENTRAINMENT -- LARVAL FISH DENSITIES, 1988

B-I COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 198 ICH7HYOPLANK7ON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITEmDISCHARGE ------LIFESTA6E EGO LOCATION Di TIME DAY NIGHT DEPTH DEPTH MID HID REP REP 1 2 1 2 # PER # PER I PER # PER 10 m3 10 m3 10 s3 10 m3 DATE SPECIES 17MAY86 UNIDENTIFIED - 0.4 2.5 - ALL SPECIES - 0.4 2.5 - 24MAY88 SPECIES UNIDENTIFIED 0.5 0.6 1.6 1.4 ALL SPECIES 0.5 0.6 1.6 1.4 31HAY88 SPECIES UNIDENTIFIED 0.2 0.9 9.7 11.6 ALL SPECIES 0.2 0.9 9.7 11.6 07JUN8B SPECIES UNIDENTIFIED - - 0.8 0.4 ALL SPECIES - - 0.8 0.4 28JUN88 SPECIES UNIDENTIFIED 0.1 - 0.2 0.2 ALL SPECIES 0.1 - 0.2 0.2

B-2 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITE=DISCHARGE ------LIFESTAGE LARVAE LOCATION DI TIME DAY NIGHT DEPTH DEPTH MID MID REP REP I 2 1 2 I PER # PER I PER # PER 10 .3 10 s3 10 a3 10 s3 DATE SPECIES 19APR88 UNID PERCID 0.4 0.8 - ALL SPECIES 0.4 0.8 - 26APR88 SPECIES UNID PERCINA 0.9 0.3 0.2 0.3 ALL SPECIES 0.9 0.3 0.2 0.3 03MAYB8 SPECIES UNIDENTIFIED - - - 0.2 ALL SPECIES - - - 0.2 10MAY88 SPECIES GIZZARD SHAD 2.8 2.4 2.4 0.9 UNID CATOSTOMID - . 0.4 - UNID POMOXIS 0.5 0.4 0.2 UNID CENTRARCHID - 0.2 - UNID PERCINA 0.2 - UNID PERCID S- - 0.2 UNIDENTIFIED 0.2 0.4 - ALL SPECIES 3.5 2.4 4.1 1.3 17MAYB8 SPECIES GIZZARD SHAD 1.3 2.8 5.9 5.3 UNID POMOXIS 2.8 4.0 5.1 4.7 UNID ETHEOSTOMA - - 0.2 - FRESHWATER DRUM 0.7 0.8 1.1 2.3 UNIDENTIFIED .1 0.2 1.3 0.6 ALL SPECIES .0 7.9 13.6 13.1 24MAY88 SPECIES 6IZZARD SHAD 3.5 1.2 5.5 7.8 COMMON CARP 0.3 0.4 0.6 0.8 UNID MORONE 0.3 - - 0.2 UNID POMOXIS 3.7 3.3 4.9 5.3 FRESHWATER DRUM 0.6 0.6 1.2 2.7 UNIDENTIFIED 0.2 1.2 0.6 1.2 ALL SPECIES 6.6 6.B 12.8 17.9 31MAY68 SPECIES GIZZARD SHAD 0.9 - 1.3 2.0 CATOSTOMID D - - 0.9 - UNID CATOSTOMID - - 0.2 - BROOK SILVERSIDE - - 0.2 UNID POMOXIS 0.5 2.1 1.1 FRESHWATER DRUM 0.2 0.2 0.8 UNIDENTIFIED .2 0.2 0.9 - ALL SPECIES .1 0.8 5.7 3.9 07JUN8B SPECIES GIZZARD SHAD .2 - 0.6 0.5 UN[D CYPRINID 0 - - 0.2 - UNID LEPFOIS - 1.4 0.2 0.2 FRESHWATER DRUM - - 0.2 UNIDENTIFIED - 0.2 - ALL SPECIES 0.2 1.4 1.2 0.9 14JUNB8 SPECIES 0, GIZZARD SHAD - - 0.4 0.3 UNID ICTIOBINAE - - 0.2 - UNID LEPORIS - 0.2 0.2 - SMALLMOUTH BASS 0..2 - - - UNID ETHEOSTOMA - - 0.2 - ALL SPECIES 0.2 0.2 0.9 0.3 21JUN88 SPECIES UNID ICTALURID - - 0.4 - UNID LEPOMIS 0..1 0.2 - - ALL SPECIES 1 0.2 0.4 - 28JUN88 SPECIES COMMON CARP - - 0.2 - UNID CYPRINIO 0.2 WHITE CRAPPIE 0.2 UNIDENTIFIED B-3 ALL SPECIES 0.2 0.2 0.5 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------.-...... ------SITE=HORSE CREEK ------LIFESTAGE EGG LOCATION HI TIME DAY NIGHT DEPTH DEPTH DOT BOT REP REP 1 2 I 2 3 4 # PER I PER # PER I PER # PER I PER 10 m3 10 s3 10 s3 10 31 0 a3 10 .3 DATE SPECIES 26APR88 UNIDENTIFIED - - - - - 0.2 ALL SPECIES - - - - - 0.2 10MAY88 SPECIES UNIDENTIFIED - - - - 0.1 - ALL SPECIES - - - - 0.1 - 24MAY88 SPECIES UNIDENTIFIED - - 0.3 - - - ALL SPECIES - - 0.3 - - 31MAY8O SPECIES UNIDENTIFIED 0.6 1.7 3.5 4.2 2.2 2.8 ALL SPECIES 0.6 1.7 3.5 4.2 2.2 2.8 14JUN88 SPECIES UNIDENTIFIED - - - - 0.6 - ALL SPECIES - - - - 0.6 - 21JUN88 SPECIES UNIDENTIFIED - - 0.9 0.2 - 0.2 ALL SPECIES - - 0.9 0.2 - 0.2

B-4 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------.-...... ------SITE=HORSE CREEK ------LIFESTA6E LARVAE LOCATION HI TINE DAY NIGHT DEPTH DEPTH BOT BUT REP REP 1 2 3 4 1 2 3 4 I PER # PER I PER I PER # PER I PER # PER # PER 10 .310 -3 10 .3 20 .310 .3 10. 3 10 S3 10. 3 DATE SPECIES 19APRB8 UNID PERCINA 0.2 ------ALL SPECIES 0.2 ------26APRBB SPECIES UNID PERCINA - - - - - 0.2 - 0.4 ALL SPECIES - - 0.2 - 0.4 03MAY88 SPECIES UNID ETHEOSTOMA - - 0.8 0.9 1.6 UNID PERCINA - 0.2 1.0 0.5 0.8 UNID PERCID - - 0.2 0.2 - ALL SPECIES 0.2 2.1 1.7 2.4 10HAY8B SPECIES UNID CYPRINID - - 0.3 - UNID CATOSTOMID - 0.1 - 0.4 - UNID ETHEOSTOMA - - 0.4 1.4 2.6 2.0 UNID PERCINA 0.2 0.2 0.1 0.4 0.5 UNIDENTIFIED -- - 0.3 - - ALL SPECIES 0.2 - 0.7 1.8 3.7 2.5 17MAY8B SPECIES -- GIZZARD SHAD 0.1 - - UNID CYPRINID - - 0.2 - 0.2- 2.1- 3.0- CATOSTOMID D 1.3 - 0.2 - - 1.5 0.6 UNID ICTIOBINAE 0.2 - - - o - UNID CATOSTOMID - 0.2 0.5 0.2 0.6 0.6 UNID PERCINA - - - 0.2 0.2 UNID PERCID - - - 0.2 - - ALL SPECIES 1.5 0.1 0.5 0.5 0.5 4.5 4.5 24MAY88 SPECIES COMMON CARP - - - 0.3 0.3 1.1 1.0 GOLDEN SHINER 0.2 0.2 - 1.0 0.8 0.3 1.0 UNID NOTROPIS - - - - 0.3 - 0.5 SUCKERMOUTH MINNOW - - 0.3 1.1 1.0 FATHEAD MINNOW - 0.3 0.5 0.5 0.5 UNID CYPRINID - 0.2 10.3 22.7 20.9 18.7 CATOSTOMID D 0.4 0.2 - - 50.8 76.2 63.7 30.1 UNID ICTIODINAE 0.2 0.2 - 0.4 0.5 - 0.3 - UNID ETHEOSTOMA - - - - 0.3 0.3 1.1 0.2 UNID PERCINA -- 0.3 1.1 - UNID PERCID 0.4 - - - UNIDENTIFIED - - - 0.5 ALL SPECIES 0.7 1.1 0.2 0.6 63.4 101.6 89.9 53.6

B-5 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE --- ...... ------SITE=HORSE CREEK ------LIFESTAGE LARVAE LOCATION HI TIME DAY NIGHT DEPTH DEPTH DOT BOT REP REP 1 2 3 4 1 2 3 4 # PER I PER # PER # PER I PER # PER # PER I PER 10 a3 10 m3 10 @3 10 m3 10 @3 10 m3 10 .3 10 m3 DATE SPECIES 31MAY88 HORNYHEAD CHUB - - - - - 0.4 1.2 GOLDEN SHINER 0.2 - - 0.4 0.2 0.4 - UNID NOTROPIS - - - 0.2 - - - SUCKERMOUTH MINNOW - - 0.2 FATHEAD MINNOW - - 0.4 - 0.2 CYPRINID N - - 1.2 0.2 - UNID CYPRINID 0.4 0.4 1.3 0.2 7.2 18.0 32.4 70.6 CATOSTONID D 0.4 0.2 1.3 1.3 192.3 119.5 304.1 209.4 UNID ICTIOBINAE - 0.2 - - - - 0.2 0.2 ROCK BASS - 0.2 0.2 2.8 3.0 SMALLMOUTH BASS - 0.2 0.2 0.2 0.6 JOHNNY DARTER -- - - 0.6 RAINBOW/BANDED DARTER 0.2 0.4 0.6 2.0 3.5 5.1 6.5 UNID ETHEOSTOMA - 0.4 - 2.2 1.0 1.4 2.0 UNID PERCINA - 0.2 - 0.6 0.4 0.2 - UNID PERCID - 0.2 - - - - - ALL SPECIES 1.0 2.1 3.4 1.6 205.3 144.4 347.4 294.5 07JUN88 SPECIES HORNYHEAD CHUB 1.5 0.8 0.9 0.9 GOLDEN SHINER - 0.2 0.2 - 0.2 0.2 0.2 UNID NOTROPIS 0.4 0.2 0.4 - BLUNTNOSE MINNOW - - * 0.4 FATHEAD MINNOW 0.4 0.4 - - CYPRINID N 1.3 0.9 0.4 0.2 UNID CYPRINID 3.2 1.1 2.7 1.1 NORTHERN HOG SUCKER - - 0.2 CATOSTOHID D 0.2 1.5 2.6 4.4 3.1 BROOK SILVERSIDE - - 0.2 - ROCK BASS 1.7 1.3 1.3 0.7 UNID LEPOMIS 2.4 1.7 2.7 0.7 SMALLMOUTH BASS - - 0.2 1.5 1.1 0.7 2.2 FANTAIL DARTER - - - 0.2 JOHNNY DARTER 1.5 0.8 1.1 0.7 RAINBOW/BANDED DARTER - 0.2 - 0.2 UNID ETHEOSTOMA S- 0.2 2.4 2.3 2.2 1.5 ALL SPECIES 0.2 0.2 0.6 17.8 13.6 17.4 12.2 14JUN88 SPECIES HORNYHEAD CHUB - - 0.2 0.2 GOLDEN SHINER 0.6 0.4 0.2 - UNID NOTROPIS - 0.2 - 1.0 1.4 1.0 CYPRINID N 0.6 0.2 0.4 0.2 UNID CYPRINID 0.6 - 0.2 - UNID CATOSTOMID 0.2 - BROOK SILVERSIDE - 0.2 - - ROCK BASS 0.8 0.6 1.6 2.4 UNID LEPOMIS - 0.6 1.6 2.8 SMALLMOUTH BASS 0.2 JOHNNY DARTER 0.2 0.4 0.2 - RAINBOW/BANDED DARTER - - - 0.2 UNID ETHEOSTOMA -S - - 0.2 ALL SPECIES 0.2 0.22 3.0 3.3 5.8 7.1

B-6 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------....------SITE:HORSE CREEK ------LIFESTAGE LARVAE LOCATION HI TIME DAY NI6HT DEPTH DEPTH BOT BOT REP REP 1 2 3 4 1 2 3 4 # PER # PER # PER # PER I PER # PER I PER I PER 10 m3 10 m3 10 .3 10 m3 10 m3 10 .3 10 .3 10 .3 21JUN88 SPECIES UNID NOTROPIS 0.6 0.2 - - 0.5 0.2 - 0.2 UNID CYPRINID 0.2 0.2 - 0.9 1.2 0.4 1.9 NORTHERN HOG SUCKER - - 0.2 - - YELLOW BULLHEAD - - 0.2 - 0.2 CHANNEL CATFISH - - - 1.7 STONECAT - - - - 0.2 ROCK BASS - - 0.6 - 0.2 UNID LEPOMIS 0.8 0.4 1.1 0.8 1.1 1.8 1.5 1.5 RAINBOW DARTER - - - - 0.4 0.6 0.4 0.4 UNIDENTIFIED 0.6 ------ALL SPECIES 2.1 0.8 1.1 OB 2.9 4.7 2.4 6.4 28JUN88 SPECIES SPOTFIN SHINER - -- - 0.2 SAND SHINER - - - - - 0.2 - - UNID NOTROPIS 0.2 - - 0.2 0.2 0.4 0.2 0.2 UNID CYPRINID - - - - 1.4 0.2 0.2 0.2 YELLOW BULLHEAD ------0.2 - UNID LEPOMIS 0.2 - 0.2 - - 0.2 0.4 0.4 RAINBOW DARTER - - - - 0.2 - - - RAINBOW/BANDED DARTER 0.2 ------ALL SPECIES 0.6 - 0.2 0.2 1.8 1.0 1.1 1.0 05JUL88 SPECIES ONID NOTROPIS 0.2 - 0.2 - - 0.2 0.2 0.2 UNID CYPRINID 0.2 0.2 1.5 - 0.2 - - - CHANNEL CATFISH - - - - 0.2 - - - UNID LEPOMIS - - - - 0.4 - - 0.2 ALL SPECIES 0.4 0.2 1.7 - 0.8 0.2 0.2 0.3 26JUL88 SPECIES SPOTFIN SHINER - - - - - 0.3 - - UNID NOTROPIS ------0.3 - UNID CYPRINID - - - - - 0.3 - 0.4 UNID LEPOMIS - - - - 0.4 - 1.2 - SMALLMOUTH BASS - - - - 0.4 - - - ALL SPECIES - - - - 0.7 0.6 1.5 0.4 09AU688 SPECIES UNID CYPRINID - - 0.2 0.2 0.8 0.2 - 0.4 UNID LEPOMIS - - - - 1.0 1.7 2.0 0.6 ALL SPECIES - - 0.2 0.2 1.8 1.9 2.0 1.0 23AUG88 SPECIES UNID LEPOMIS - - - - 0.2 0.2 0.4 - ALL SPECIES - - - 0.2 0.2 0.4 - 30AUG88 SPECIES UNID PIMEPHALES ------0.2 ALL SPECIES ------0.2 06SEP8B SPECIES SPOTFIN SHINER - - - - - 0.3 - - ALL SPECIES - - - - - 0.3 - -

B-7 COMMONWEALTH EDISON COMPANY - DRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------.-...... ------SITE=INTAKE ...... LIFESTAGE EGG LOCATION 11 12 13 TINE TIME TIME DAY NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP DOT DOT REP REP REP REP REP REP REP REP REP 2 1 2 1 2 2 2 1 2 1 2 1 2 1 2 I PER i PER # PER # PER # PER # PER # PER # PER I PER # PER # PER I PER # PER i PER I PER 10 0310 m3 10 m3 10 .3 10 03 10 m3 10 a3 10. 3 10 m3 10 .3 10 m3 10 .3 10 .3 10 s3 10 3 DATE SPECIES 26APR88 UNIDENTIFIED ------0.1 - - - - - ALL SPECIES ------0.1 - - - - - 17MAY8B SPECIES UNIDENTIFIED 8.8 1.3 ALL SPECIES 8.8 1.3 24MAY88 SPECIES UNIDENTIFIED 1.2 4.7 1.0 0.1 0.4 - 3.6 - 2.0 - 0.3 1.2 0.3 7.7 - ALL SPECIES 1.2 4.7 1.0 0.1 0.4 . 3.6 - 2.0 - 0.3 1.2 0.3 7.7 - 31MAY88 SPECIES UNIDENTIFIED ALL SPECIES 07JUN8B SPECIES UNIDENTIFIED - 0.2 0.2 0.1 0.3 - 0.3 - - ALL SPECIES - 0.2 0.2 0.1 0.3 . 0.3 - - 14JUN88 SPECIES UNIDENTIFIED ALL SPECIES 21JUN88 SPECIES UNIDENTIFIED ------.8 - - 0.1 ALL SPECIES ------.8 - - 0.1 28JUNO8 SPECIES UNIDENTIFIED ALL SPECIES 05JULBB SPECIES UNIDENTIFIED ALL SPECIES 19JULB8 SPECIES UNIDENTIFIED 0.1 - - - - - 0.1 ALL SPECIES 0.1 ------0.1

B-8 COMMONNEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=INTAKE ------LIFESTAGE EGG LOCATION 13 14 TIME TIME NIGHT NIGHT DEPTH DEPTH TOP DOT TOP DOT REP REP REP REP I I I I # PER # PER # PER I PER 10 .3 10 m3 10 .3 10 .3 DATE SPECIES 26APR8B UNIDENTIFIED - - - - ALL SPECIES - - - 17MAY86 SPECIES UNIDENTIFIED - - - - ALL SPECIES - - - - 24MAY88 SPECIES UNIDENTIFIED - 1.0 - - ALL SPECIES - 1.0 - - 31MAY88 SPECIES UNIDENTIFIED 0.6 2.5 0.1 0.5 ALL SPECIES 0.6 2.5 0.1 0.5 07JUN88 SPECIES UNIDENTIFIED - - - 0.1 ALL SPECIES - - - 0.1 14JUN88 SPECIES UNIDENTIFIED - - - 0.3 ALL SPECIES - - - 0.3 21JUN88 SPECIES UNIDENTIFIED - - - - ALL SPECIES - - - - 28JUNB6 SPECIES UNIDENTIFIED - - - 0.1 ALL SPECIES - - - o0. 05JULB8 SPECIES UNIDENTIFIED - - - 0.1 ALL SPECIES - - - 0.1 19JUL8B SPECIES UNIDENTIFIED - - - - ALL SPECIES - - - -

B-9 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1989 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ---.------...... ------SITE=INTAKE ------LIFESTAGE LARVAE LOCATION II 12 TIME TIME DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP BOT TOP BOT TOP BOT TOP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 3 4 1 2 1 2 1 # PER # PER # PER I PER # PER I PER # PER I PER i PER # PER # PER # PER # PER I PER I PER 10 m3 10. 3 10 m3 10 .3 10. 3 10 m3 10 m3 10 a3 10 s3 10 m3 10 m3 10 m3 10. 3 10. 3 10. 3 DATE SPECIES 19APRBB UNID PERCINA 0.5 - 0.1 0.4 0.5 0.9 UNID STIZOSTEDION ALL SPECIES 0.5 - - 0.1 - 0.4 0.5 0.9 26APR88 SPECIES UNID PERCINA 0.4 0.3 0.2 0.B 0.3 0.5 0.5 0.3 - 0.1 0.2 0.1 1.0 UNID STIZOSTEDION ALL SPECIES 0.4 0.3 0.2 0.B 0.3 0.5 0.5 0.3 - 0.1 0.2 - 0.1 1.0 03MAY88 SPECIES UNID ETHEOSTOMA - - - - 0.7 0.9 1.1 1.2 UNID PERCINA 0.3 1.3 1.0 0.7 3.3 5.4 2.4 0.9 0.5 0.6 0.2 2.4 UNID PERCID - - 0.1 - - - ALL SPECIES 0.3 1.3 1.0 0.7 4.2 6.3 3.4 2.1 0.5 0.6 0.2 2.4 10MAY88 SPECIES SUCKERMOUTH MINNOW - - - - 0.4 - - 0.1 UNID CYPRINID - - - 0.3 UNID ICTIOBINAE - - 0.1 0.6 - - 0.1 UNID CATOSTOMID 0.5 - 0.3 0.3 - 0.3 UNID ETHEOSTOMA 1.9 1.9 1.9 0.7 - - 0.4 5.0 UNID PERCINA 0.40 1.1 0.9 2.0 1.2 0.8 0.7 0.9 1.1 3.3 UNID PERCID - 0.2 - - - - 0.1 UNIDENTIFIED - 0.2 - - - - - ALL SPECIES 0.4 1.4 0.9 4.9 3.1 3.1 2.8 0.9 1.5 8.7 17MAY88 SPECIES COMMON CARP - - 0.1 - - - 5.3 5.8 GOLDEN SHINER 0.2 0.2 SUCKERMOUTH MINNOW - 0.4 FATHEAD MINNOW 0.4 0.6 UNID CYPRINID 0.3 - - - 0.8 0.6 UNID ICTIOBINAE 0.3 - 0.4 - 0.2 0.2 UNID CATOSTOMID RAINBOW/BANDED DARTER UNID ETHEOSTOMA 0.2 - UNID PERCINA 0.3- 1.0 5.7 4.6 UNID PERCID - - 0.5 - UNIDENTIFIED ALL SPECIES 0.9 2.1 - 12.9 12.3 24MAY88 SPECIES COMMON CARP 1.5 1.3 0.5 14.8 29.5 0.2 0.4 4.6 HORNYHEAD CHUB - 0.1 GOLDEN SHINER 0.1 0.1 1.0 1.7 0.1 1.0 UNID NOTROPIS - - 1.0 - - - 0.1 SUCKERMOUTH MINNOW FATHEAD MINNOW - 0.1 - 0.7 1.1 - 0.4 UNID CYPRINID 0.3 - - 9.1 7.6 - - 0.1 2.9 CATOSTOMID D - - - 4.1 2.8 - - - 3.2 UNID ICTIOBINAE - 0.1 0.4 0.4 - - - - 1.2 UNID CATOSTOMID - 0.1 0,[ - - UNID ETHEOSTOMA - - 1.0 0.6 0.1 - UNID PERCINA - 0.9 0.2 2.3 4.1 0.1 2.9 UNID PERCID - - 0.1 - UNIDENTIFIED - 0.3 ALL SPECIES 1.7 2.9 1.0 34.7 47.5 0.2 0.8 16.5

B-10 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=INTAKE ------LIFESTAGE LARVAE LOCATION TINEII TIMP12 DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP BOT TOP BOT TOP BOT TOP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 3 4 1 2 1 2 1 # PER # PER I PER I PER I PER I PER I PER # PER I PER # PER I PER # PER I PER I PER I PER 10 m3 10 m3 10 s3 10 .3 10 @3 10 3 10 m3 10 a3 10 m3 10 a3 10. 3 10. 3 10 3 10 m3 10 m3 31MAY88 SPECIES UNID GAR 0.2 0.2 GIZZARD SHAD COMMON CARP 1.7 0.9 HORNYHEAD CHUB 0.2 0.5 1.9 - 1.6 GOLDEN SHINER - 1.7 1.4 1.1 1.4 UNID NOTROPIS 2.2 1.2 - 0.1 SUCKERMOUTH MINNOW 0.2 0.2 - 0.1 FATHEAD MINNOW 0.9 0.3 - 0.1 CYPRINID N - 0.3 - 0.1 UNID CYPRINID - 0.1 11.7 9.1 0.2 - UNID MOXOSTOMA 1.6 0.2 CATOSTOMID D 1.0 16.7 14.8 1.0 - 5.4 UNID ICTIOBINAE - 0.3 0.6 BROOK SILVERSIDE - 0.1 0.2 ROCK BASS 0.3 0.5 UNID LEPORIS - 0.1 0.2 - SMALLMOUTH BASS 0.5 0.3 UNID POMOXIS RAINBOW DARTER RAINBOW/BANDED DARTER - 0.1 UNID ETHEOSTOMA 1.3 0.3 - 0.1 UNID PERCINA 0.1 3.0 1.4 UNID PERCID 0.2 UNIDENTIFIED ALL SPECIES 3.6 3.5 40.4 32.0 2.6 - 7.7 07JUN8B SPECIES GIZZARD SHAD COMMON CARP - 0.3 0.4 - 0.7 S - - 0.1 HORNYHEAD CHUB - - - 0.1 GOLDEN SHINER - 0.5 - - 0.1 0.2 - 0.4 0.2 UNID NOTROPIS - 0.8 0.7 0.2 0.5 0.2 0.8 1.2 0.9 BLUNTNOSE MINNOW - - 0.2 - FATHEAD MINNOW - 0.3 - 0.3 0.2 CYPRINID N - - 0.3 - UNID CYPRINID - 1.1 1.0 1.0 0.7 0.5 0.1 - 0.1 CATOSTOMID D - 0.7 0.4 0.2 0.3 - - - 0.1 BROOK SILVERSIDE ROCK BASS 0.2 0.1 0.2 0.3 UNID LEPOMIS 1.0 0.9 0.7 0.7 0.2 0.2 0.4 0.2 SHALLMOUTH BASS - - - 0.1 UNID CENTRARCHID FANTAIL DARTER JOHNNY DARTER RAINBON/BANDED DARTER - - - 0.1 UNID ETHEOSTOMA 0.1 - 0.1 UNID PERCINA - - 0.1 UNID PERCID 0.1 - - UNIDENTIFIED 0.1 0.3 - - - 0.2 0.2 ALL SPECIES 4.9 4.2 3.3 3.9 - 0.9 1.1 2.3 1.7

B-11 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=INTAKE ------LIFESTAGE LARVAE LOCATION II 12 TIRE TINE DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 3 4 1 2 1 2 1 I PER # PER # PER I PER # PER I PER I PER I PER I PER I PER i PER I PER I PER I PER I PER 10. 3 10 m.310 3 10 m3 10 13 10 m3 1013 101 3 10 m3 10 Q3 10 .3 10. 3 10. 3 10. 3 10. 3 14JUN88 SPECIES GIZZARD SHAD COMMON CARP HORNYHEAD CHUB ROSYFACE SHINER UNID NOTROPIS .....- - - - 1.2 - - BLUNTNOSE MINNOW FATHEAD MINNOW CYPRINID N UNID CYPRINID .1.2 YELLOW BULLHEAD STONECAT ROCK BASS UNID LEPOMIS -. .. - 0.1 SMALLMOUTH BASS UNID POMOXIS JOHNNY DARTER RAINBOW/BANDED DARTER UNID ETHEOSTOMA UNID PERCINA UNIDENTIFIED ALL SPECIES ..-. - 1.3 21JUN88 SPECIES COMMON CARP - 0.2 0.2 HORNYHEAD CHUB GOLDEN SHINER 0.4 0.3 ROSYFACE SHINER UNID NOTROPIS - 0.2 1.2 0.4 0.9 1.7 0.6 BLUNTNOSE MINNOW - 0.2 FATHEAD MINNOW 0.2 - - 0.2 UNIV CYPRINID 1.0- .5 0.2 0.5 UNID MOXOSTOMA CHANNEL CATFISH 0.2 - STONECAT 0.2 0.5 BROOK SILVERSIDE 0.4 - - - 0.2 ROCK BASS 0.3 0.2 UNID LEPOMIS - 0.1 1.6 1.8 0.4 0.2 1.5 UNID CENTRARCHID - 0.2 JOHNNY DARTER RAINBOW/BANDED DARTER UNID ETHEOSTOMA - 0.2 - - - 0.2 UNID PERCINA - - - 0.2 UNIDENTIFIED 0.2 0.2 - 0.1 - - ALL SPECIES - 0.3 5.7 5.3 - 1.9 2.3 3.2

B-12 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITE=INTAKE ...... LIFESTAGE LARVAE LOCATION I1 12 TIME TIME DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP BOT TOP DOT TOP DOT TOP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 3 4 1 2 1 2 1 I PER I PER # PER # PER # PER # PER # PER # PER # PER # PER I PER # PER I PER I PER # PER 10 a3 10 s3 10 .3 10. 3 10 m3 10. 3 10 .3 10 .3 10 m3 10 m3 10 m3 101 3 10 .3 10 m3 10 .3 28JUN88 SPECIES GIZZARD SHAD 0.1 COMMON CARP -0- - 0.2 - - 0.4 HORNYHEAD CHUB GOLDEN SHINER SAND SHINER UNID NOTROPIS - 3.9 3.8 0.5 0.5 - - .1 3.3 - 2.9 FATHEAD MINNOW - - - 0.7 UNID CYPRINID - 0.3 0.3 1.0 - 0.1 - - - 2.9 CHANNEL CATFISH - - - 0.3 STONECAT BROOK SILVERSIDE - 0.2 0.1 - - 0.10- ROCK BASS - 0.3 - - 0.3 UNID LEPOMIS - 0.4 0.8 0.6 - - 0.1 - 1.9 RAINBOW DARTER RAINBOW/BANDED DARTER UNID ETHEOSTONA - 0.1 UNIDENTIFIED ALL SPECIES - 4.3 4.2 .2.7 2.7 - - 1.2 3.4 - 9.7 05JUL88 SPECIES COMMON CARP 0.1 - - 0.3 0.6 ------0.4 SAND SHINER UNID NOTROPIS 0.6 - 1.0 - 0.5 0.6 - 1.4 1.6 0.1 FATHEAD MINNOW - - - 0.3 - - - 0.1 UNID CYPRINID 0.2 - 0.6 - 0.8 0.3 - 0.5 UNID MOXOSTOMA - - - 0.2 - CHANNEL CATFISH STONECAT BROOK SILVERSIDE -02 - - ROCK BASS - - 0.1 - 0.2 - - 0.2 UNID LEPOMIS 0.2 - - - 0.8 0.6 - - 0.1 - - 0.7 UNID AMMOCRYPTA RAINBOW DARTER RAINBOW/BANDED DARTER UIMID ETHEOSTOMA . .-- 0.2 ALL SPECIES 1.1 1.8 3.2 1.9 - - 1.7 1.7 - - 2.1 19JULB8 SPECIES COMMON CARP SPOTFIN SHINER - - 0.1 - UNID NOTROPIS - 3.0 2.3 - 5.1 3.0 - 0.3 0.8 UNID PIMEPHALES UNID CYPRINID - - 0.1 - 3.9 10.6 - CHANNEL CATFISH STONECAT UNID LEPOMIS - 0.3 - 3.0 2.7 - UNIDENTIFIED - 0.2 - - - ALL SPECIES - 3.1 2.8 - 12.0 16.4 - 0.3 0.8 16AU88 SPECIES - - -- 0.2 - SPOTFIN SHINER - - tINID CYPRINID - 0.6 0.8 - UNID LEPOMIS - - 0.1 - 0.2 - ALL SPECIES - - 0.7 - 1.1 -

B-13 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=INTAKE ------LIFESTAGE LARVAE LOCATION II 12 TINE TINE DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP DOT TOP BOT TOP DOT TOP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 3 4 1 2 1 2 1 # PER # PER # PER # PER # PER # PER # PER # PER I PER I PER I PER # PER # PER I PER # PER 10. 3 10 m3 10 13 10 s3 10. 3 10 m3 10 @3 10 m3 10. 3 10. 3 10 m3 10 13 10 m3 10 .3 101 3 23AUG88 SPECIES UNID NOTROPIS - 0.2-- 0.1 - - - - FATHEAD MINNOW - 0.2 - - UNID CYPRINID - 00.7 0.9 - - - - 0.8 UNID LEPONIS - - 0.2 - - - -S - - 0.2 ALL SPECIES - 0.2 0.B 0.9 0.2 0.9 - - - 1.01- 30AUG88 SPECIES GIZZARD SHAD - 0.2 COMMON CARP - - - 0.4 - - SPOTFIN SHINER 0.1 - 0.1 BLACKSTRIPE TOPMINNOW 0.2 0.1 UNID LEPONIS ALL SPECIES 0.1 - 0.1 0.2 - 0.4 0.2 06SEP88 SPECIES GIZZARD SHAD 0.2 2.8 UNID CYPRINID -S - 0.1 ALL SPECIES -S 0.1 0.2 2.8 13SEP88 SPECIES UNID PIMEPHALES ALL SPECIES

B-14 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=INTAKE ...... LIFESTAGE LARVAE LOCATION 12 13 14 TIME TIME TIME NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP BOT TOP DOT REP REP REP REP REP REP REP REP 2 1 2 3 1 1 2 1 2 1 2 1 2 1 2 I PER # PER # PER # PER I PER # PER # PER # PER # PER I PER # PER I PER I PER I PER I PER 10 .3 10 .3 10 m3 10. 3 10. 3 10. 3 10 m3 10 m3 10 a3 10 m3 10 m3 10. 3 10 .3 10 m3 10 m3 DATE SPECIES 19APR88 UNID PERCINA - - 0.8 - 0.3 UNID STIZOSTEDION - 0.2 ALL SPECIES - - 0.9 - 0.3 26APR88 SPECIES UNID PERCINA 0.4 0.2 0.5 - UNID STIZOSTEDION - 0.1 - - ALL SPECIES 0.4 0.4 0.5 - 03MAY88 SPECIES UNID ETHEOSTOMA 0.1 - 0.5 - UNID PERCINA 3.2 0.9 3.5 - UNID PERCID - - - - ALL SPECIES 3.4 0.9 4.0 - l0MAY88 SPECIES SUCKERMOUTH MINNOW 0.2 0.1 0.3 - UNID CYPRINID 0.4 0.4 0.2 - UNID ICTIOBINAE 0.9 0.1 0.5 - UNID CATOSTONID - 0.2 0.3 - UNID ETHEOSTONA 2.0 1.7 1.0 - UNID PERCINA 9.4 3.5 4.7 - UNID PERCID - - - - UNIDENTIFIED - - 0.1 - ALL SPECIES 12.9 6.0 7.2 - 17MAY88 SPECIES COMMON CARP - 2.5 2.7 2.0 GOLDEN SHINER - 0.5 0.4 SUCKERMOUTH MINNOW - - - - FATHEAD MINNOW 0.2 0.4 0.1 UNID CYPRINID - 0.2 0.2 - UNID ICTIOBINAE - 0.5 0.2 0.1 UNID CATOSTOMID - - - 0.1 RAINBOW/BANDED DARTER - - 0.2 - UNID ETHEOSTONA - 0.8 0.5 0.6 UNID PERCINA - 4.9 3.2 1.5 UNID PERCID - 1.4 1.3 0.5 UNIDENTIFIED - - 0.2 0.4 ALL SPECIES - 10.8 9.1 5.3 24MAY88 SPECIES COMMON CARP 9.B 9.6 26.3 - - 0.4 - - 14.3 8.5 HORNYHEAD CHUB - 0.6 0.3 - - - 0.4 GOLDEN SHINER 0.5 1.8 2.7 - - - 0.2 0.6 UNID NOTROPIS - 0.2 - SUCKERMOUTH MINNOW - - - - - 0.5 0.3 FATHEAD MINNOW - 0.2 0.7 - - 0.2 0.1 UNID CYPRINID 3.8 11.1 15.0 - - 5.5 4.0 CATOSTOMID D 2.7 6.5 5.8 - - 4.8 4.2 UNID ICTIOBINAE 1.0 1.1 2.0 - - 3.7 1.9 UNID CATOSTOMID - - - - 0.1 - UNID ETHEOSTONA 0.2 0.5 0.8 - - 0.5 0.4 UNID PERCINA 4.2 6.5 8.0 - - 9.2 5.8 UNID PERCID 0.5 0.1 0.8 - UNIDENTIFIED 0.7 - 1.0 - ALL SPECIES 23.3 38.2 63.4 - 0.4 - 38.9 26.2

B-15 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1980 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------.------SITE =INTAKE ------LIFESTAGE LARVAE LOCATION 12 13 14 TIME TINE TIME NIGHT DAY MIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP BOT REP REP REP REP REP REP REP REP 2 1 2 3 1 1 2 1 2 1 2 1 2 1 2 # PER # PER # PER # PER I PER # PER # PER I PER # PER # PER # PER # PER # PER # PER # PER 10 .3 10 m3 10 @3 10 .3 10 .3 10 m3 10 .3 10 m3 10 m3 10 m3 10 v3 10 m3 1003 10 m3 10 m3 31MAY88 SPECIES UNID OAR GIZZARD SHAD COMMON CARP - 3.9 1.9 1.6 2.3 HORNYHEAD CHUB - 0.2 - - 0.1 GOLDEN SHINER - 1.0 0.1 0.2 0.1 0.2 0.2 UNID NOTROPIS - 0.7 3.0 0.1 0.6 SUCKERMOUTH MINNOW - 0.1 0.1 0.1 FATHEAD MINNOW - 0.1 0.4 - 0.1 CYPRINID N - 0.1 0.1 - 0.1 UNID CYPRINID - 9.3 8.3 1.4 3.6 UNID NOXOSTOMA - 0.8 CATOSTOMID D - 9.5 11.9 - 0.5 3.9 9.9 - 0.4 - UNID ICTIOBINAE - 0.1 - - 0.4 - BROOK SILVERSIDE - 0.1 ROCK BASS 0.1 0.3 0.3 0.8 UNID LEPOMIS SMALLMOUTH BASS 0.2 UNID POMOXIS RAINBOW DARTER 0.1 0.1 0.5 - 0.1 RAINDOW/BANDED DARTER 1.1 0.6 - 0.2 0.2 - 0.2 UNID ETHEOSTOMA 0.6 0.7 - 0.1 UNID PERCINA 2.2 2.4 0.2 - 0.5 0.1 0.2 UNID PERCID 0.1 UNIDENTIFIED - 0.2 ALL SPECIES 28.9 29.6 0.8 - 0.7 - 19.3 1.6 1.1 07JUN88 SPECIES GIZZARD SHAD - 0.1 COMMON CARP 0.9 - 0.3 0.9 HORNYHEAD CHUB 0.1 - 0.4 GOLDEN SHINER 0.9 0.2 0.2 - 0.2 UNID NOTROPIS 2.2 0.2 0.4 0.4 BLUNTNOSE MINNOW FATHEAD MINNOW 0.8 0.2 - CYPRINID N 0.2 - UNID CYPRINID 4.7 - 1.5 1.6 0.3 0.2 CATOSTOMID D -0.8 - 0.2 0.4 0.3 0.3 BROOK SILVERSIDE 0.2 ROCK BASS -0.5 - 1.1 0.6 UNID LEPOMIS 2.0 - 1.2 0.7 0.3 SMALLMOUTH BASS 0.4 - 0.5 - UNID CENTRARCHID - 0.1 FANTAIL DARTER 0.1 - JOHNNY DARTER 0.1 - 0.3 - RAINBOW/BANDED DARTER - 0.1 UNID ETHEOSTONA 0.1 - O.-0 1.3 - 0.1 - UNID PERCINA 0.9 - 0.2 0.3 UNID PERCID UNIDENTIFIED 0.8 - 0.1 ALL SPECIES 15.4 - 0.3 0.4 6.6 6.9 - 1.1 0.6

B-16 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=INTAKE ------LIFESTAGE LARVAE LOCATION 12 13 14 TIME TIME TIME NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP BOT TOP DOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP 2 1 2 3 1 1 2 1 2 1 2 1 2 1 2 # PER # PER I PER # PER I PER I PER # PER # PER # PER # PER # PER # PER I PER I PER # PER 10 m3 10 m310 s 103 m310 m310 m310 m310310 m3 10 3 10 310 3 10 m3 10 m3 10 m3 t4JUN88 SPECIES GIZZARD SHAD - - - - 0.1 - COMMON CARP - 0.3 - - - HORNYHEAD CHUB ROSYFACE SHINER - - - - 0.2 UNID NOTROPIS - 0.4 0.1 0.8 0.3 0.2 0.3 0.3 0.2 - 0.3 0.9 0.2 BLUNTNOSE MINNOW -S - - - - 0.2 - - - - - FATHEAD MINNOW - 0.3 0.3 - - - - 0.2 0.2 - - - - CYPRINID N UNID CYPRINID 0.3 0.5 0.3 0.8 1.3 . . . . YELLOW BULLHEAD 0.1 0.2 - 0.2 -- STONECAT 0.2 0.2 . .-. ROCK BASS 0.2 - 0- - - UNID LEPOMIS 0.8 0.1 0.1 0.2 0.2 0.2 - 0.5 0.4 0.6 0.4 0.2 SMALLNOUTH BASS UNID PONOXIS 0.1 - - JOHNNY DARTER 3 RAINBOW/BANDED - - 0.2-0. - - DARTER 0.1 - - UNID ETHEOSTOMA 0. - 0.2 - - UNID PERCINA - - - - UNIDENTIFIED 0.1 - 0,3 - 0.2 - - - ALL SPECIES 2.2 0.8 1.1 0.5 1.2 1.3 2.3 3.0 0.4 1.0 1.5 0.5 21JUN88 SPECIES COMMON CARP 0.2 HORNYHEAD CHUB 0.2 GOLDEN SHINER - 0.1 0.1 ROSYFACE SHINER - 0.1 UNID NOTROPIS -0.6 0.5 0.2 0.3 0.4 - 0.5 0.3 0.7 BLUNTNOSE MINNOW -0.3 FATHEAD MINNOW - 0.3 - - - UNID CYPRINID 0.9 - 0.2 - - 3.2 0.5 0.1 UNID MOXOSTOMA CHANNEL CATFISH 1.2 STONECAT 0.2 0.2 BROOK SILVERSIDE 0.2 ROCK BASS 0.6 0.7 UNID LEPOMIS 2.6 1.5 0.1 UNID CENTRARCHID 0.1 JOHNNY DARTER 0.2 RAINBOW/BANDED DARTER 0.1 0.3 UNID ETHEOSTOMA 0.3 0.3 UNID PERCINA 0. 0.5 - 0.1 UNIDENTIFIED ALL SPECIES 7.2 O,0. 0.5 0.7 6.7 3.4 0.4 1.3

B-17 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=INTAKE ...... LIFESTAGE LARVAE LOCATION 12 13 14 TIME TIME TIME NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP 2 1 2 3 1 1 2 1 2 1 2 1 2 1 2 1 PER # PER # PER # PER I PER # PER # PER # PER # PER # PER I PER # PER I PER # PER # PER 10 .3 10 M3 10 .3 10 13 10 3 13 1013 1013 103 10 .3 10 N3 10 M3 10 M3 10 M3 10 N3 28JUN88 SPECIES GIZZARD SHAD COMMON CARP - 0.2 0.3 HORNYHEAD CHUB GOLDEN SHINER S- 0.2 SAND SHINER 0.1 UNID NOTROPIS 1.6 - 1.3 0.9 1.7 - 0.4 2.1 FATHEAD MINNOW - 0.5 - 0.2 - 0.2 UNID CYPRINID - 0.7 2.5 1.8 0.2 CHANNEL CATFISH STONECAT - 0.2 BROOK SILVERSIDE - 0.1 0.1 ROCK BASS - 0.3 - - 0.8 0.9 UNID LEPOMIS - 1.4 - 0.1 - 0.5 0.4 - 0.1 RAINBOW DARTER - 0.2 - - 0.2 0.7 RAINBOW/BANDED DARTER UNID ETHEOSTOMA - 0.2 0.2 UNIDENTIFIED - 0.2 - 1.9 ALL SPECIES 5.1 1.4 1.3 - 6.6 4.6 - 2.2 05JUL88 SPECIES COMMON CARP - 0.7 - 4.6 3.2 SAND SHINER -0.1 UNID NOTROPIS - 1.5 - 0.1 0.3 - 0.9 0.5 - 0.1 - 0.4 FATHEAD MINNOW - 0.5 - 0.2 0.3 -0.8 UNID CYPRINID - 1.8 0.- 1.3 - 1.5 - 0.4 - 0.5 UNID MOXOSTOMA CHANNEL CATFISH - 0.6 0.4 STONECAT BROOK SILVERSIDE - 0.1 ROCK BASS - 0.2 - - UNID LEPOMIS 1.3 - 0.6 - 0.8 UNID AMMOCRYPTA RAINBOW DARTER 0.3 RAINBOW/BANDED DARTER UNID ETHEOSTOMA - 0.4 83 - 0.1 0.5 0.9 - 0.1 1.7 - 8.3 - 6.7 - 0.5 - 0.9 ALL SPECIES - 6.4 - 19JUL88 SPECIES COMMON CARP

SPOTFIN SHINER - - 0.2 - UNID NOTROPIS 0.5 1.5 0.7 0.3 0.3 - - - 0.5 0.7 UNID PIMEPHALES 0.1 - UNID CYPRINID 1.7 4.2 O.8 3.6 - - CHANNEL CATFISH 0.2 0.3 0.2 - STONECAT 0.1 - UNID LEPOMIS 2.7 2.4 0.2 0.8 1.2 - UNIDENTIFIED ALL SPECIES 5.1 8.3 0.7 0.5 2.2 5.3 - - 0.5 0.7 16AUG88 SPECIES SPOTFIN SHINER UNID CYPRINID 2.5 - 1.1 - 0.2 0.3 1.4 - UNID LEPOMIS 0.7 0.1 - 0.1- - 0.1 0.5 - ALL SPECIES 3.2 0.1 1.1 - 0.1 0.2 - 0.4 1.9 -

B-18 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1986 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------.-...... ------SITE=INTAKE ...... LIFESTAGE LARVAE LOCATION 12 13 14 TINE TIME TIME NIGHT DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP BOT TOP DOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP 2 1 2 3 1 1 2 1 2 1 2 1 2 1 2 I PER # PER # PER I PER I PER # PER # PER # PER I PER # PER # PER # PER I PER I PER # PER 10 a3 10 m3 10 .3 10 @3 10. 3 10. 3 10 .3 10 &3 10 s3 10. 3 10 .3 10 .3 10 m3 10 .3 10 .3 23AUG88 SPECIES UNID NOTROPIS 0.2 - - FATHEAD MINNOW UNID CYPRINID 0.2 --.. UNID LEPONIS 0.6 - ALL SPECIES 1.0 - 30AUG88 SPECIES GIZZARD SHAD - 0.2 - - - COMMON CARP -- - 0.2 0.2 - SPOTFIN SHINER BLACKSTRIPE TOPMINNOW UNID LEPOMIS ALL SPECIES - 0.2 - - 0.2 0.2 06SEP88 SPECIES GIZZARD SHAD - 0.6 -- - -- UNID CYPRINID ALL SPECIES - 0.6 - - - 13SEP88 SPECIES UNID PIMEPHALES ALL SPECIES

B-19 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE I...... ------SITE=INTAKE ------LIFESTAGE LARVAE LOCATION 14 TIME NIGHT DEPTH TOP BOT REP REP 1 1 2 # PER # PER # PER 10 .310 m3 10 .3 DATE SPECIES 19APRB8 UNID PERCINA UNID STIZOSTEDION ALL SPECIES 26APR88 SPECIES UNID PERCINA UNID STIZOSTEDION ALL SPECIES 03MAY88 SPECIES UNID ETHEOSTOMA UNID PERCINA UNID PERCID ALL SPECIES IONAY88 SPECIES SUCKERMOUTH MINNOW WNID CYPRINID UNID ICTIOBINAE UNID CATOSTOMID UNID ETHEOSTOMA UNID PERCINA UNID PERCID UNIDENTIFIED ALL SPECIES 17MAY88 SPECIES COMMON CARP GOLDEN SHINER SUCKERMOUTH MINNOW FATHEAD MINNOW UNID CYPRINID UNID ICTIOBINAE UNID CATOSTOMID RAINBOW/BANDED DARTER UNID ETHEOSTOMA UNID PERCINA UNID PERCID UNIDENTIFIED ALL SPECIES 24MAY8B SPECIES COMMON CARP HORNYHEAD CHUB GOLDEN SHINER UNID NOTROPIS SUCKERMOUTH MINNOW FATHEAD MINNOW UNID CYPRINID CATOSTOMID D UNID ICTIOBINAE UNID CATOSTOMID UNID ETHEOSTONA UNID PERCINA UNID PERCID UNIDENTIFIED ALL SPECIES

B-20 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITEzINTAKE ------LIFESTAGE LARVAE LOCATION 14 TIME NIGHT DEPTH TOP BOT REP REP 1 1 2 1 PER # PER # PER 10 .3 10 m3 10 @3 31MAY88 SPECIES UNID BAR - - - GIZZARD SHAD - 0.2 - COMMON CARP 2.2 1.5 - HORNYHEAD CHUB 0.1 0.7 - GOLDEN SHINER 0.1 - - UNID NOTROPIS 1.3 1.9 - SUCKERHOUTH MINNOW - - - FATHEAD MINNOW CYPRINID N UNID CYPRINID 1.8 2.1I UNID MOXOSTOMA - - - CATOSTOMID D 3.2 7.0 - UNID ICTIOBINAE 0.1 03 - BROOK SILVERSIDE - - - ROCK BASS - 0.7 - UNID LEPOMIS - 0.2 - SMALLNOUTH BASS 0.1 - - UNID PONOXIS - 0.2 - RAINBOW DARTER - - - RAINBOW/BANDED DARTER - 0.2 - UNID ETHEOSTOMA 0.4 0.3 - UNID PERCINA 1.0 0.5 - UNIO PERCID - - - UNIDENTIFIED - - - ALL SPECIES 10.3 15.8 - 07JUNO8 SPECIES GIZZARD SHAD - - - COMMON CARP - 0.3 - HORNYHEAD CHUB - 0.1 - GOLDEN SHINER - 0.4 - UNID NOTROPIS - 0.7 - BLUNTNOSE MINNOW - - - FATHEAD MINNOW 0.6 CYPRINID N - - - UNID CYPRINID - 2.8 - CATOSTOMID 0 - 0.3 - BROOK SILVERSIDE - - - ROCK BASS - 0.4 - UNID LEPONIS - 2.7 - SMALLMOUTH BASS - - - UNID CENTRARCHID - - - FANTAIL DARTER - - - JOHNNY DARTER - - - RAINBOW/BANDED DARTER - - - UNID ETHEOSTOMA - 0.3 - UNID PERCINA - 0.4 - UNID PERCID - - - UNIDENTIFIED - - - ALL SPECIES - 9.1 -

B-21 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1958 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=INTAKE ------LIFESTAGE LARVAE LOCATION 14 TIME NIGHT DEPTH TOP BOT REP REP 1 1 2 I PER # PER # PER 10 .3 10 s3 10 .3 14JUN88 SPECIES GIZZARD SHAD - - - COMMON CARP - 0.4 - HORNYHEAD CHUB 0.3 0.1 - ROSYFACE SHINER - - - UNID NOTROPIS 0.3 0.3 0.3 BLUNTNOSE MINNOW - 0.1 - FATHEAD MINNOW 0.3 0.1 0.7 CYPRINID N 0.1 - - UNID CYPRINID 0.9 1.3 0.7 YELLOW BULLHEAD 0.3 0.3 - STONECAT 0.1 0.1 - ROCK BASS 0.7 0.9 0.3 UNID LEPOMIS 0.3 0.4 0.2 SMALLHOUTH BASS - - 0.2 UNID POMOXIS JOHNNY DARTER RAINBOW/BANDED DARTER 0.1 0.1 0.2 UNID ETHEOSTOMA 0.1 - 0.3 UNID PERCINA 0.9 0.7 0.3 UNIDENTIFIED - 0.1 - ALL SPECIES 4.4 5.0 3.3 21JUNBB SPECIES COMMON CARP 0.6 0.1 - HORNYHEAD CHUB - - - GOLDEN SHINER ROSYFACE SHINER UNID NOTROPIS 0.9 1.8 BLUNTNOSE MINNOW - - FATHEAD MINNOW 1.2 0.1 UNID CYPRINID 3.2 1.8 UNID MOXOSTOMA - 0.1 CHANNEL CATFISH - 0.1 STONECAT BROOK SILVERSIDE - - ROCK BASS 0.9 1.0 UNID LEPONIS 3.! 2.8 UNID CENTRARCHID - - JOHNNY DARTER RAINBOW/BANDED DARTER - - UNID ETHEOSTONA 0.2 - UNID PERCINA 0.2 0.2 UNIDENTIFIED - - ALL SPECIES 10.3 7.9

B-22 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=INTAKE ------LIFESTAGE LARVAE LOCATION 14 TIME NIGHT DEPTH TOP DOT REP REP 1 1 2 t PER # PER I PER 10 m3 10 m3 10 .3 28JUN88 SPECIES GIZZARD SHAD - - - COMMON CARP 0.4 0.1 - HORNYHEAD CHUB 0.1 - - GOLDEN SHINER - - - SAND SHINER - - - UNID NOTROPIS 1.7 0.9 - FATHEAD MINNOW 0.3 0.7 - UNID CYPRINID 1.5 1.2 - CHANNEL CATFISH 0.1 - - STONECAT 0.1 - - BROOK SILVERSIDE - - - ROCK BASS 0.1 0.4 - UNID LEPOMIS 0.3 0.8 RAINBOW DARTER O.t - RAINBOW/BANDED DARTER 0.1 - UNID ETHEOSTOMA - - UNIDENTIFIED - - ALL SPECIES 4.7 4.2 05JUL88 SPECIES COMMON CARP 0.7 1.6 SAND SHINER - UNID NOTROPIS 0.3 0.9 FATHEAD MINNOW - 0.1 UNID CYPRINID 0.6 2.3 UNID MOXOSTOMA - - CHANNEL CATFISH 0.1 0.3 STONECAT 0.1 - BROOK SILVERSIDE - - ROCK BASS - - UNID LEPOMIS 0.6 1.9 UNID AMMOCRYPTA 0.1 - RAINBOW DARTER - - - RAINBOW/BANDED DARTER - 0.3 - UNID ETHEOSTOMA - ALL SPECIES 2.6 7.3 19JUL88 SPECIES COMMON CARP - 0.1 0.3 SPOTFIN SHINER - - - UNID NOTROPIS - 0.6 0.3 UNID PIMEPHALES - - - UNID CYPRINID - 3.7 12.7 CHANNEL CATFISH - - 1.1 STONECAT - - 0.2 UNID LEPOMIS - 1.4 6.7 UNIDENTIFIED - - - ALL SPECIES - 5.9 21.3 16AUGBB SPECIES SPOTFIN SHINER - - - UNID CYPRINID - - - UNID LEPOMIS - - - ALL SPECIES - - -

B-23 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITE:INTAKE ------LIFESTAGE LARVAE LOCATION 14 TIME NIGHT DEPTH TOP DOT REP REP 1 1 2 1 PER # PER I PER 10 s3310 3 10 .3 23AUG68 SPECIES UNID NOTROPIS FATHEAD MINNOW UNID CYPRINID UNID LEPOMIS ALL SPECIES 30AU688 SPECIES GIZZARD SHAD COMMON CARP SPOTFIN SHINER - - - BLACKSTRIPE TOPMINNOW - - - UNID LEPONIS - - - ALL SPECIES - - - 06SEP88 SPECIES GIZZARD SHAD - - - UNID CYPRINID - - - ALL SPECIES - - - 13SEP88 SPECIES UNID PIMEPHALES - 0.2 - ALL SPECIES - 0.2 -

B-24 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=KANKANKEE RIVER -' LIFESTAGE EGG LOCATION KI K2 K3 TIME TIME TIME DAY DAY NIGHT DAY DEPTH DEPTH DEPTH DEPTH TOP TOP TOP BOT TOP REP REP REP REP REP 1 2 1 1 1 1 # PER I PER # PER I PER I PER I PER 10 .310 0 m3310 3 10 m3 10 s3 DATE SPECIES 24MAY88 UNIDENTIFIED -- 0.1 - ALL SPECIES - 0.1 - 31MAYS9 SPECIES UNIDENTIFIED 0.2 - - ALL SPECIES 0.2 - - 07JUN88 SPECIES UNIDENTIFIED 0.1 - 0.1 - - - ALL SPECIES 0.1 0.1 - - - 21JUN88 SPECIES UNIDENTIFIED 0.6 ALL SPECIES 0.6 19JULB8 SPECIES UNIDENTIFIED - 4.6 - - 0.5 ALL SPECIES - 4.6 - - 0.5

B-25 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198B ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=KANKANKEE RIVER ------LIFESTAGE LARVAE LOCATION KI K2 TIME TIME DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP 1 2 1 2 1 2 i 2 1 2 1 2 1 2 1 1 PER I PER # PER I PER I PER # PER # PER # PER # PER # PER # PER # PER # PER # PER # PER 10. 3 10 310 3 10 3 10 m3 10. 3 103 10 3 10 m3 10 m3 10 @3 10 3 10 3 10. 3 10. 3 DATE SPECIES 19APRB8 UNID PERCID ALL SPECIES 26APR8B SPECIES UNID PERCINA 0.1 ALL SPECIES 0.1 -- - 10MAY8B SPECIES COMMON CARP ------0.2 ------UNID CYPRINID - 0.2 - - UNID ICTIOBINAE - 0.3 0.2 0.1 - 0.6 0.2 0.1 1.8 1.0 1.4 4.5 1.9 RAINBON/BANDED DARTER - 0.4 - - 0.1 - - - - - 0.1 0.1 - UNID ETHEOSTOMA - - 0.1 ------0.2 - - - UNID PERCINA 0.6 - 0.1 - - - - - 0.6 0.4 - - - UNID PERCID - - -- - 0.1 ------0.1 - - UNIDENTIFIED ------0.1 - - ALL SPECIES 0.6 0.7 0.4 0.3 0.1 0.6 0.5 0.1 2.4 1.6 1.8 4.6 1,9 17MAYB8 SPECIES COMMON CARP - 0.9 0.4 0.2 - 01-0 0.5 0.2 GOLDEN SHINER 0.2 - 0.1 - FATHEAD MINNOW 0.1 - - UNID CYPRINID - 0.1 - - 0.2 CATOSTOMID D - 0.2 - 0.8 0.1 - - - 0.2 - 0.6 0.1 0.2 UNID ICTIOBINAE - 0.3 0.4 - 2.1 0.8 0.2 0.4 0.2 0.3 0.9 0.6 0.3 0.6 UNID CATOSTOMID - 0.1 SMALLMOUTH BASS 0.1 - UNID ETHEOSTOMA - 0.2 - - - UNID PERCINA - 0.2 0.8 0.8 0.3 0.2 0.2 0.7 - UNID PERCID UNIDENTIFIED 0.2 - 0.2 - - - 0.1, ALL SPECIES 0.2 0.8 1.2 5.2 1.8 0.4 0.6 0.2 0.7 1.0 1.6 1.7 0.9 24MAY88 SPECIES GIZZARD SHAD COMMON CARP - 2.1 0.6 0.3 2.5 0.2 4.1 0.3 0.3 1.2 2.1 2.7 2.0 1.9 HORNYHEAD CHUB GOLDEN SHINER ... .- 0.1 UNID NOTROPIS FATHEAD MINNOW 0.1 - 0.2 - - - 0.2 - 0.1 UNID CYPRINID - - 0.3 0.7 - - 0.2 0.4 0.1 0.3 CATOSTOMID V -0. ------0.4 0.1 UNID ICTIOBINAE - 0.4 - 0.3 0.4 - 0.1 1.0 0.4 0.4 0.1 UNID CATOSTOMID UNID ETHEOSTOMA - 0.1 - 1.0 0.2 - - - 0.5 - - UNID PERCINA - 0.8 - 0.6 0.2 0.2 - 0.4 . 0.4 0.4 - UNID PERCID 0.2 - - - - - 0.2 -- - UNIDENTIFIED ALL SPECIES - 2.8 1.4 0.7 3.7 1.4 5.6 0.5 0.8 1.2 3.2 4.6 3.3 2.7

B-26 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=KANKANKEE RIVER ------LIFESTAGE LARVAE LOCATION KI K2 TIME TIME DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP DOT TOP BOT TOP DOT TOP BOT REP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 # PER # PER I PER # PER I PER I PER # PER # PER i PER # PER # PER I PER I PER # PER # PER 10 @3 10 m3 10 m3 10 e3 10 m3 10 s3 10 m3 10 .3 10 .3 10 m3 10 m3 10 m3 10 .3 10. 3 10 .3 31MAY86 SPECIES COMMON CARP - 0.2 2.6 0.8 7.1 - - - 0.2 HORNYHEAD CHUB - 0.2 - - - - 0.2 0.5 - GOLDEN SHINER - - 0.2 - 0.2 - 0.2 UNID NOTROPIS 0.6 - FATHEAD MINNOW - 0.4 - 0.3 0.3 CYPRINID N - - - -- 0.1 ------UNID CYPRINID - 0-.3 0.6 0.6 0.6 - 0.2 0.5 0.5 0.5 UNID MOXOSTOMA - - - - 0.2 0.1 ------CATOSTOMID D 0.5 0.4 0.4 4.5 6.7 3.0 3.9 - 0.6 0.6 0.2 B.3 4.6 8.6 UNID ICTIOBINAE 0.2 - - - 0.3 - - - - 0.2 0.2 - ROCK BASS - - - - 0.3 - 0.2 -- - - UNID LEPONIS - - 0.2 - SMALLMOUTH BASS - - 0.3 - - RAINBOW DARTER - - 0.2 - - 0.2 - UNID ETHEOSTOMA 0.1 - 0.2 0.5 0.3 0.4 - - 0.8 0.3 0.2 UNID PERCINA - 0.2 0.9 - 0.4 0.2 0.3 - 0.2 0.5 - 0.3 - UNID PERCID - 0.2 - - 0.1 ------UNIDENTIFIED - - 0.2 ------ALL SPECIES 0.6 0.5 0.8 1.2 5.7 11.8 4.9 13.1 0.2 0.6 0.8 1.0 10.B 6.6 9.4 07JUN88 SPECIES COMMON CARP - - 2.8 2.6 0.7 2.0 - - - - 0.1 2.4 0.2 GOLDEN SHINER UNID NOTROPIS 0.3 1.0 2.0 0.7 - 0.1 0.1 1.3 0.9 0.6 1.1 0.2 FATHEAD MINNOW - - - - - 0.1 ------UNID CYPRINID - - - - 0.5 0.9 0.2 0.8 - - - - 1.2 0.9 - CATOSTOMID D 0.1 - - 0.2 0.6 - 0.3 0.1 0.1 - - 0.7 0.2 - UNID ICTIOBINAE ROCK BASS - - - 0.2 - 0.3 0.1 ------UNID LEPOMIS 0.1 - - 0.2 0.5 0.2 0.3 - - - - 0.1 0.5 - SMALLMOUTH BASS 0.2 RAINBOW DARTER JOHNNY DARTER 0.2 RAINBOW/BANDED DARTER 0.1 - 0.2 - - 0.2 - UNID ETHEOSTOMA LO6PERCH UNID PERCINA 0.4 - - 0.3 0.2 0.1 0.3 - - 0.6 0.8 UNIDENTIFIED - 0.1 - - 0.2 0.1 - - - 0.1 - - - ALL SPECIES 1.1 1.1 2.0 1.0 4.1 5.0 1.8 3.6 0.3 1.6 1.4 1.7 2.2 5.0 0.8

B-27 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYDPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=KANKANKEE RIVER ------LIFESTAGE LARVAE LOCATION KI K2 TIME TINE DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP BOT TOP BOT REP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 # PER # PER # PER # PER # PER I PER # PER # PER # PER # PER # PER # PER I PER I PER # PER 10 s3 10 m3 10 @3 10 m3 10 m3 10 s3 10 s3 10 s3 10. 3 10 m3 10 m3 10 m3 10. 3 10 m3 10 m3 14JUN88 SPECIES COMMON CARP - - -- 0.1 - - - HORNYHEAD CHUB GOLDEN SHINER - 0.2 UNID NOTROPIS 0.1 0.2 - - 0.5 0.2 0.2 - - - 0.1 0.2 FATHEAD MINNOW - 0.2 0.1 0.1 0.2 - - 0.2 - - - - UNID CYPRINID - 0.1 0.1 0.1 0.2 ------UNID CATOSTOMID STONECAT - 0.1 0.1 - - ROCK BASS - 0.1 - 0.5 1.1 - 0.2 UNID LEPOMIS - 0.1 - - - 0.2 UNID PONOXIS 0.2 -- RAINBOW/BANDED DARTER - - 0.3 0.4 - - - UNID ETHEOSTOMA - 0.1 0.2 - - - 0.2 0.2 UNID PERCINA - - - - 0.1 - 0.2 ALL SPECIES 0.1 0.2 0.2 0.8 0.3 1.8 2.6 0.2 0.2 0.2 0.2 0.1 2.4 21JUN88 SPECIES COMMON CARP 0.1 0.1 - 0.1 HORNYHEAD CHUB - 0.2 GOLDEN SHINER 0.1 0.2 - - 0.2 - ROSYFACE SHINER 0.1 - - 0.2 UNID NOTROPIS 1.6 2.3 - 0.1 0.5 0.2 0.2 0.2 0.2 - FATHEAD MINNOW - - 0.2 - 0.1 - - - 0.2 0.2 0.2 UNID CYPRINID 0.4 0.7 - 1.0 0.5 - 0.4 0.4 - 0.5 CHANNEL CATFISH - 0.2 - - - 1.3 - 0.2 STONECAT 0.4 0.2 . .- 0.5 ROCK BASS - 0.1 0.1 - 1.1 UNID LEPOMIS 0.4 0.1 0.9 0.2 - - 0.4 0.2 UNID CENTRARCHID 0.2 - - - - RAINBOW/BANDED

DARTER 0.1 - - 0.2 - - -S - - - UNID ETHEOSTOMA - 0.1 - - 0.2 UNID PERCINA 0.1 - - 0.1 UNID PERCID - - 0.2 - UNIDENTIFIED 0.2 - - 0.2 ALL SPECIES 1.6 2.3 2.1 1.8 - 3.9 1.5 0.2 0.8 2.4 0.5 2.2 28JUN88 SPECIES COMMON CARP - 0.1 - UNID NOTROPIS 0.4 0.9 0.4 0.7 0.3 1.1 0.2 0.3 0.1 FATHEAD MINNOW - - - 0.1 - UNID CYPRINID 0.4 0.1 - - 0.2 - 0.2 CHANNEL CATFISH 0.3 - - 0.1 0.2 STONECAT - 0.6 - ROCK BASS UNID LEPOMIS 0.2 0.5 0.3 1.1 3- - - - RAINBOW DARTER 0.1 - - 0.2 0.1 - - UNID PERCINA UNIDENTIFIED - 0.1 - - ALL SPECIES 0.5 1.4 2.2 2.0 0.3 I.1 0.7 1.0 0.4 0.4

B-28 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=KANKANKEE RIVER ----...... ------LIFESTAGE LARVAE LOCATION KI K2 TINE TINE DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH TOP DOT TOP DOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 # PER # PER # PER # PER I PER t PER I PER # PER I PER I PER I PER I PER I PER I PER # PER 10 *3 10 s3 10 .3 10. 3 10 m3 10 m3 10 310 m3 10 3 10 .3 10 s3 10 a3 10 03 10 &3 10 3 05JUL88 SPECIES COMMON CARP 0.3 - - UNID NOTROPIS 0.2 0.9 - 013 0.3 0.2 0.3 - FATHEAD MINNOW - - - - 0.2 - UNID CYPRINID 0.8 - 0.1 - 0.2 - - - CHANNEL CATFISH 0.1 - - - - UNID LEPOMIS 0.2 0.3 - - 0.3 0.3 0.2 - UNIDENTIFIED ALL SPECIES 1.2 1.3 - 0.5 0.3 0.8 0.5 0.2 0.5 12JULBB SPECIES UNID NOTROPIS - 0.3 0.2 0.1 UNID CYPRINID 0.1 - - - 0.1 - UNID LEPODIS ALL SPECIES - 0.3 0.2 0.4 - 19JUL68 SPECIES COMMON CARP UNID NOTROPIS - 0.4 0.2 0.4 FATHEAD MINNOW - 0.2 - UNID CYPRINID - 0.3 0.4 UNID LEPOMIS ALL SPECIES - 0.4 0.2 0.5 0.7 26JULB8 SPECIES UNID NOTROPIS - 0.2 0.4 0.2 FATHEAD MINNOW UNID CYPRINID - 0.3 2.4 CHANNEL CATFISH 0.2 STONECAT UNID LEPOMIS 0.2 1.0 ALL SPECIES - 0.2 0.4 0.5 3.8 09AUG88 SPECIES UNID NOTROPIS -- - 0.6 ALL SPECIES -- - 0.6 16AUG88 SPECIES SPOTFIN SHINER UNID NOTROPIS - 0.4 0.3 UNID CYPRINID - 0.2 0.3 UNID LEPOMIS - - 0.1 - 0.6 1.3 ALL SPECIES S - 0.1 - 1.2 1.9 23AUG88 SPECIES UNID NOTROPIS - 0.2 ALL SPECIES - 0.2 30AU688 SPECIES COMMON CARP UNID CYPRINID - 0.2 ALL SPECIES - 0.2

B-29 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 198B ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE -----. I.---...... ------ITE=KANKANKEE RIVER ------LIFESTAGE LARVAE LOCATION K2 K3 K4 TIME TIME TIME NIGHT DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH DEPTH BOT TOP 8OT TOP DOT TOP DOT TOP OT REP REP REP REP REP REP REP REP REP 2 1 2 1 2 1 2 1 2 1 2 1 1 2 2 # PER I PER # PER # PER I PER I PER # PER # PER # PER # PER I PER I PER I PER I PER # PER 10 @3 10 m3 10 m3 10 s3 10 m3 10 m3 10 -3 10 .3 10 m3 10 m3 10 m3 10 m3 10 .3 10 .3 10 .3 DATE SPECIES 19APR88 UNID PERCID ------0.1 - - - ALL SPECIES - 0.1 - - - 26APR88 SPECIES UNID PERCINA - 0.2 - 0.2 - - 0.2 ALL SPECIES - 0.2 - 0.2 ------0.2 IOMAYBB SPECIES COMMON CARP UNID CYPRINID UNID ICTIOBINAE 6.9 0.2 0.4 0.4 0.7 2.5 0.8 3.0 - 0.2 - RAINBOW/BANDED DARTER -- 0.2 - 0.2 - - 0.4 - - UNID ETHEOSTOMA - 0.2 - - UNID PERCINA 0.3 - - 0.2 - 0.4 - UNID PERCID UNIDENTIFIED ALL SPECIES 7.3 0.2 0.4 0.4 0.9 2.7 1.0 3.1 0.6 0.4 - 17HAY8N SPECIES COMMON CARP 0.2 - - - - - 0.4 0.6 0.2 - - GOLDEN SHINER FATHEAD MINNOW - 0.3 - UNID CYPRINID 0.2 - 0.2 - 0.2 0.3 CATOSTOMID D - 0.6 0.B 0.4 - 2.1 0.6 - UNID ICTIOBINAE 0.2 - 0.2 0.5 2.2 - 2.0 0.1 - 04 - UNID CATOSTOMID 0.2 - - - - SMALLMOUTH BASS UNID ETHEOSTOMA - 0.6 - 0.4 0.2 S- 0.6 - UNID PERCINA 0.5 - - 0.6 0.7 - 0.2 0.,2 0.7 1.6 0.3 - UNID PERCID - 0.1 0.2 - - - - 0.1 - UNIDENTIFIED - 0.1 0.2 - ALL SPECIES 1.0 - 0.4 2.3 3.9 1.6 3.2 0.,2 0.9 4.0 2.6 24MAY88 SPECIES GIZZARD SHAD - - - - - 0.2 - - - COMMON CARP 1.8 0.2 0.4 0.6 - 0.5 2.8 0.7 4.3 5.2 3.2 HORNYHEAD CHUB ------0.2 - - GOLDEN SHINER 0 - - - - - 0.2 - 0.6 0.2 UNID NOTROPIS 0.1- - - - - 0.2 - 0.3 0.2 - FATHEAD MINNOW 0.1 - - - - 0.2 0.5 - - 0.2 0.2 - UNID CYPRINID - - 0.2 - - - 0.3 0.2 - - - - 0.2 - CATOSTOMID D ------0.3 - 0.2 0.2 0.3 - UNID ICTIOBINAE 0.3 - - - 0.2 - 0.7 0.2 0.2 1.0- - - UNID CATOSTOMID 0.2 ------UNID ETHEOSTOMA 0.1 - - - - 0.2 - 0.4 - - 0.2 0.2 - UNID PERCINA 0.6 - - - - 0.3 0.2 0.2 - 1.9 0.3 - UNID PERCID - 0.2 - - - - 0.3 0.2 - - - UNIDENTIFIED - - - 0.2 - - ALL SPECIES 3.1 0.3 0.6 0.6 0.4 1.3 5.0 1.8 4.9 0.3 0.2 - 9.7 4.6 -

B-30 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------...... ------SITEzKANKANKEE RIVER ------LIFESTAGE LARVAE LOCATION K2 K3 K4 TIME TINE TIME NIGHT DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH DEPTH BOT TOP DOT TOP BOT TOP DOT TOP DOT REP REP REP REP REP REP REP REP REP 2 1 2 1 2 1 2 1 2 1 2 1 1 2 2 1 PER I PER # PER I PER I PER # PER I PER # PER # PER I PER # PER I PER I PER # PER # PER 10 m3 10 *3 10 s3 10. 3 10 m3 10 m3 10 m3 10 m3 10 .3 10 m3 10 m3 10 m3 10 m3 10 m3 10. 3 31MAY88 SPECIES COMMON CARP 0.2 - - - 0.2 0.1 0.4 - 0.2 - 0.2- 0.2 - HORNYHEAD CHUB 0.2 - - - - - 0.1 - GOLDEN SHINER - - - - 0.2 - - 0.2 - 0.3 - UNID NOTROPIS ------0.2 FATHEAD MINNOW 0.2 - - - - CYPRINID N UNID CYPRINID 0.2 - 0.1 0.6 0.2 0.2 0.7 0.9 UNID MOXOSTONA CATOSTOMID D 5.7 0.8 0.8 0.4 0.4 0.5 5.4 2.5 0.9 0.3 0.4 6.9 2.6 UNID ICTIOBINAE ------0.1 - 0.3 - - ROCK BASS 0.2 ------0.2 - - 0.3 0.2 UNiD LEPOMIS SMALLMOUTH BASS - 0.2 0.3 RAINBOW DARTER 0.2 0.2 UNID ETHEOSTOMA 0.1 - - 0.5 - 1.5 0.2 0.2 0.5 UNID PERCINA 0.1 0.2 - - 0.3 0.2 - 0.5 0.2 UNID PERCID ------0.2 UNIDENTIFIED -- - 0.1 - ALL SPECIES 6.5 0.8 1.0 0.6 0.8 1.4 7.1 4.6 2.4 0.5 0.4 9.3 4.8 07JUN88 SPECIES COMMON CARP 1.0 - - - - 0.1 1.2 0.2 0.4 - - 0.6 0.4 GOLDEN SHINER -0.2 UNID NOTROPIS 0.30 0.9 0.4 0.2 0.2 0.2 0.2 - 2.5 3.2 0.7 0.4- FATHEAD MINNOW - - - - - 0.2 0.1 0.2 0.1 - - 0.4 0.2 UNID CYPRINID 1.4 - - - - 1.1 1.5 1.4 0.6 - - 4.6 1.3 CATOSTOMID D 0.2 - - - 0.2 0.7 0.1 0.3 0.1 0.2 - - 0.7 UNID ICTIODINAE - - - - - 0.1 - - - - - ROCK BASS ------01 - - 0.4 0.2 0.4 1.4 - - UNID LEPOMIS 1.0 - 0.2 0.4 - 0.6 0..1 - 1.10.7 SMALLMOUTH BASS 0.4 ------RAINBOW DARTER - - - - - 0.1 - 0.2 - JOHNNY DARTER RAINBOW/BANDED DARTER - - - 0.2 - - UNID ETHEOSTOMA 0.2 -- - 0.2 0.2 LOGPERCH 0.2 - - UNID PERCINA 0.1 - 0.4 0.1 0.1 0.1 - 0.6 - UNIDENTIFIED - 0.1 0.5 - - 0.4 - 0.1 ALL SPECIES 4.3 0.6 1.6 1.3 0.4 3.5 4.1 3.8 1.9 2.7 3.2 - .9 3.9

B-31 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 198B ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------SITE=KANKANKEE RIVER ------LIFESTAGE LARVAE LOCATION K2 K3 K4 TIME TIRE TIME NIGHT DAY NI6HT DAY NIGHT DEPTH DEPTH DEPTH DEPTH DEPTH BOT TOP DOT TOP BOT TOP DOT TOP BOT REP REP REP REP REP REP REP REP REP 2 1 2 I 2 1 2 1 2 1 2 1 1 2 2 # PER I PER # PER # PER I PER I PER I PER # PER # PER I PER I PER # PER # PER # PER I PER 10 .3 10 .3 10 .3 10 m3 10 @3 10 m3 10 .310 m3 10 s3 10 m3 10 m3 10 .3 10 .3 10 m3 10 .3 14JUN88 SPECIES COMMON CARP HORNYHEAD CHUB GOLDEN SHINER UNID NOTROPIS - 0.1 0.2 0.2 - 0.3 - 0.2 0.3 0.3 - 1.8 0.8 FATHEAD MINNOW 0.2 - - - - - 0.2 - - 0.3 UNID CYPRINID - - - - 0.2 0.4 0.2 0.9 - - UNID CATOSTOMID 0.1 STONECAT -0.2 - - - ROCK BASS S- - - 02 S- 0.4 0.2 UNID LEPOMIS -l 0.3 UNID POMOXIS - 0.4 0.O- RAINBOW/BANDED DARTER - - 0.1 - 0.2 0.5 - - UNID ETHEOSTOMA UNID PERCINA 0.2 ------0.4 - - ALL SPECIES 0.3 0.1 0.2 0.6 0.1 0.3 0.7 0.7 2.5 0.5 0.3 2.2 1.1 21JUN88 SPECIES COMMON CARP 0.2 ------HORNYHEAD CHUB GOLDEN SHINER ROSYFACE SHINER UNID NOTROPIS 0.60 0.1 0.4 0.4 0.1 0.2 0.2 - - FATHEAD MINNOW 0.2 - - - - 0.1 - 0.7 0.1 - - UNID CYPRINID 0.2 - - - 0.1 0.1 0.5 0.2 0.4 - - CHANNEL CATFISH 1.0 - - - - - 0.3 - 0.1 - - STONECAT ROCK BASS 0.2 - - - 0.2 - - - - UNID LEPOMIS - 0.4 0.1 - - - 0.1 - - UNID CENTRARCHID RAINBOW/BANDED DARTER 0.2 - 0.1 - - UNID ETHEOSTOMA UNID PERCINA UNID PERCID UNIDENTIFIED - - 0.1 0.2 -- - - ALL SPECIES 1.9 0.6 0.3 0.9 0.9 0.4 1.1 1.1 0.7 28JUN80 SPECIES COMMON CARP ------0.1 - - - UNID NOTROPIS 0.5 1.5 0.4 0.4 - - 0.3 0.2 0.4 - FATHEAD MINNOW - - - 0.1 ------UNID CYPRINID 0.3 - - - 0.1 - 0.1 0.2 0.1 CHANNEL CATFISH 0.3 ------0.1 STONECAT ROCK BASS ------0.2 - UNID LEPOMIS 0.9 - - 0.4 - - - - 0.4 - RAINBOW DARTER UNID PERCINA - - 0.1 - UNIDENTIFIED - - 0.4 - ALL SPECIES 2.1 1.5 0.4 1.3 0.2 - 0.6 0.5 0.9

B-32 COMMONWEALTH EDISON COMPANY - MRAIDHOOD STATION - 1988 ICHTHYOPLANKTON STUDIES DENSITY OF LARVAE COLLECTED AT EACH SITE ------7 SITE=KANKANKEE RIVER ------LIFESTAGE LARVAE LOCATION K2 K3 K4 TIME TIME TIME NIGHT DAY NIGHT DAY NIGHT DEPTH DEPTH DEPTH DEPTH DEPTH DOT TOP BOT TOP sOT TOP DOT TOP BOT REP REP REP REP REP REP REP REP REP 2 1 2 1 2 1 2 1 2 1 2 I 1 2 2 # PER # PER # PER # PER # PER I PER I PER # PER # PER # PER # PER I PER # PER # PER # PER 10 .3 10 m3 10 .3 10 .310 m3 10 s3 .0m3 10 m3 10. 3 10 .3 10 m3 .0s3 10 .3 10 s3 10 .3 05JUL88 SPECIES COMMON CARP UNID NOTROPIS FATHEAD MINNOW UNID CYPRINID CHANNEL CATFISH UNIO LEPOMIS - 0.1 UNIDENTIFIED 0.5 ALL SPECIES 1.4 12JUL88 SPECIES UNID NOTROPIS UNID CYPRINID UNID LEPOMIS ALL SPECIES 19JUL88 SPECIES COMMON CARP - 0.2 UNID NOTROPIS - 0.2 - 0.2 - - FATHEAD MINNOW UNID CYPRINID - 0.2 - - 0.6 - UNID LEPOMIS - 0.2 0.6 - 0.3 ALL SPECIES - 0.3 1.4 - 0.3 26JUL98 SPECIES UNID NOTROPIS - - 0.2 - - - FATHEAD MINNOW 0.2 - UNID CYPRINID 0.7 - -- 0.7 - CHANNEL CATFISH STONECAT 0.2 - UNID LEPOMIS 1.3 - ALL SPECIES 2.4 - - -0.2 0.7 - 09AUG88 SPECIES UNID NOTROPIS ALL SPECIES 16AU698 SPECIES SPOTFIN SHINER 0.2 - UNID NOTROPIS 0.2 - UNID CYPRINID - 0.1 0.1 - 0.4 UNID LEPOMIS 0.5 - - - - 0 0.1 ALL SPECIES 0.9 - 01.- 0.1 0.1 0.7 23AUG88 SPECIES UNID NOTROPIS ALL SPECIES 30AUG88 SPECIES COMMON CARP ------0.2 UNID CYPRINID 0.2 ------ALL SPECIES 0.2 ------0.2

B-33 APPENDIX C

ENTRAINMENT -- NUMBER AND PERCENT OF MACROINVERTEBRATES COLLECTED, 1988

C-I COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATE TOTAL NUMBER AND PERCENT OF ORGANISMS COLLECTED

SITE ------.-----.--.-.--.------.-----.------.------ALL SITES DISCHARGE HORSE CREEK INTAKE KANKAKEE RIVER COMBINED SPECIES # % # Z I I # % # % ------Hydra 21 1.27 8 0.50 24 0.33 182 1.39 235 1.00 Planariidae 11 0.67 6 0.37 23 0.32 28 0.2! 68 0.29 Nematoda 1 0.06 3 0.19 4 0.06 4 0.03 12 0.05 Tardigrada - - 1 0.06 - - - - 1 0.00 Naididae - - 1 0.06 1 0.01 1 0.01 3 0.01 Chaetogaster diaphanus - - 47 2.92 53 0.74 32 0.25 132 0.56 Dero sp. - - 1 0.06 1 0.01 1 0.01 3 0.01 Dero digitata - - 15 0.93 12 0.17 7 0.05 34 0.14 Nais sp. - - 2 0.12 - - - - 2 0.01 Nais bretscheri 1 0.06 - - - - 2 0.02 3 0.01 Nais communis - - 2 0.12 4 0.06 6 0.05 12 0.05 Nais elinguis - - - 2 0.03 10 0.08 12 0.05 Nais pardalis 3 0.18 35 2.17 19 0.26 27 0.21 84 0.36 Nais variabilis 31 1.08 49 3.04 89 1.24 96 0.74 265 1.13 Ophidonais serpentina 1 0.06 11 0.68 17 0.24 80 0.61 109 0.46 Paranais frici 2 0.12 20 1.24 83 1.15 340 2.67 453 1.93 Piguetiella michiganensis - - 1 0.06 1 0.01 19 0.15 21 0.09 Pristina Ieidyi 2 0.12 - - 4 0.03 6 0.03 Pristina - 2 0.03 - - 2 0.01 Slavina appendiculata 16 0.99 7 0.10 3 0.02 26 0.11 Stylaria lacustris 2 0.12 146 9.06 631 8.78 306 2.34 1085 4.62 Vejdovskyella intermedia - - - - 2 0.03 4 0.03 6 0.03 Branchiura soverbyi 1 0.01 1 0.01 2 0.01 Lisnodrilus hoffseisteri 1 0.01 7 0.05 8 0.03 Iu., tub. vio cc 2 0.03 7 0.05 9 0.04 Enchytracidae 8 0.11 7 0.05 15 0.06 6lossiphonildae 9 0.13 1 0.01 10 0.04 Asellus sp. 1 0.06 1 0.01 - - 2 0.01 Hyalella azteca 160 9.93 101 1.40 252 1.93 513 2.18 Gammarus sp. 2 0.12 - - 3 0.02 5 0.02 Crangonyx sp. 2 0.12 - - 6 0.00 3 0.02 I1 0.05 Astacidae - - 3 0.19 - - 6 0.05 9 0.04 Hydracarina (acarina) 13 0.79 6 0.37 71 0.99 101 0.77 191 0.81 Isonychia sp. 2 0.12 1 0.06 72 1.00 333 2.55 408 1.74 Baetidae - - - - 1 0.01 - - 1 0.00 Baetis sp. 3 0.18 69 4.28 720 10.01 741 5.68 1533 6.52 Centroptilus - - 25 1.55 192 2.67 313 2.40 530 2.25 Callibaetis - - 10 0.62 167 2.32 452 3.46 629 2.68 Pseudocloeon sp. 99 6.00 13 0.81 445 6.19 585 4.4B 1142 4.86 Baetisca sp. - - - - 7 0.10 11 0.08 18 0.08 Baetisca bajoleovi - - - - 1 0.01 7 0.05 8 0.03 Heptageniidae 1 0.06 4 0.25 40 0.56 36 0.28 81 0.34 H. maculipennis 2 0.12 37 2.30 153 2.13 893 6.84 1085 4.62 Heptagenia sp. ------7 0.05 7 0.03 Heptagenia flavescens - - - - 2 0.02 2 0.01 Pseudiron sp. 1 0.06 2 0.03 11 0.08 14 0.06

C-2 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1985 MACROINVERTEBRATE DATE TOTAL NUMBER AND PERCENT OF ORGANISMS COLLECTED

SITE ------.-----.------ALL SITES DISCHAR6E HORSE CREEK INTAKE KANKAKEE RIVER COMBINED

SPECIES # I # # I # I # I 2

Heptagenia flavescens - - - - 2 0.02 2 0.01 Pseudiron sp. 1 0.06 2 0.03 1I 0.08 14 0.06 Stenacron sp. 2 0.12 8 0.50 27 0.36 76 0.58 113 0.48 Stenonema sp. 17 1.03 3 0.19 67 0.93 417 3.19 504 2.14 Stenoneaa intergrus - - - - 1 0.01 14 0.11 15 0.06 Stenonema pulchellum 1 0.06 I 0.01 7 0.05 9 0.04 Stenoneaa terainatut 9 0.55 - - 163 1.25 172 0.73 Stenoema tripunctatus - - 2 0.12 - - 2 0.01 Ephemerella needhami - 2 0.02 2 0.01 Serratella frisoni 1 0.01 - - 1 0.00 Tricorythodes sp. 9 0.55 32 1.99 725 10.08 453 3.47 1219 5.19 Brachycercus sp. - - - 1 0.01 166 1.27 167 0.71 Caenis sp. 13 0.79 61 3.78 158 2.20 1199 9.18 1431 6.09 Pentagenra vittigera ------I 0.01 1 0.00 Potasanthus sp. 1 0.06 5 0.31 20 0.28 95 0.73 121 0.51 Ephemeridae 1 0.06 - - - 7 0.05 8 0.03 Ephemera sp. - - 2 0.12 - - 2 0.02 4 0.02 Hexagenia sp. - - 1 0.06 469 6.52 913 6.99 1383 5.88 Ephoron sp. - 6 0.37 39 0.54 737 5.64 782 3.33 Coenagrionidae 1 0.06 7 0.43 182 2.53 224 1.72 414 1.76 Argia sp. - 1 0.06 4 0.06 8 0.06 13 0.06 Enallagma sp. 1 0.06 - - 2 0.03 4 0.03 7 0.03 Aeshnidae - - - - 4 0.06 5 0.04 9 0.04 Gomphidae - - - - - 4 0.03 4 0.02 Libellulidae - - - 3 0.04 1 0.01 4 0.02 Plecoptera - - - 7 0.10 5 0.04 12 0.05 Perlidae 1 0.06 1 0.06 2 0.03 3 0.02 7 0.03 Perlesta sp. - - - 1 0.01 I 0.01 2 0.01 Isoperla sp. - - - - 1 0.01 15 0.11 16 0.07 Gerridae - - - - 5 0.07 - - 5 0.02 Netrobates sp. - - 1 0.06 - - - 1 0.00 Belastomatidae - - 1 0.06 2 0.03 2 0.02 5 0.02 Corixidae 1 0.06 19 I.IB 128 1.78 457 3.50 605 2.57 Corydalus cornutus - - - - - 1 0.01 I 0.00 Climacia sp. - 16 0.99 - - 1 0.01 17 0.07 Trichoptera - 1 0.06 1 0.01 10 0.08 12 0.05 Chimarra obscura - 16 0.99 8 0.11 - 24 0.10 Polycentropodidae - - - - - 1 0.01 1 0.00 Cyrnellus fraternus 34 2.06 - - 5 0.07 - - 39 0.17 Neureclipsis 1 0.06 - - 1 0.01 2 0.01 Polycentropus sp. - 1 0.06 - - 12 0.09 13 0.06 Hydropsychidae - - 2 0.12 1 0.01 2 0.02 5 0.02 Cheumatopsyche sp. - - 11 0.68 6 0.08 8 0.06 25 0.11 Hydropsyche sp. - - 5 0.31 2 0.03 2 0.02 9 0.04 Hydropsyche betteni - - - 1 0.01 - - 1 0.00 Hydropsyche orris 3 0.18 3 0.01

C-3 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATE TOTAL NUMBER AND PERCENT OF ORGANISMS COLLECTED

SITE ------.------ALL SITES DISCHARGE HORSE CREEK INTAKE KANKAKEE RIVER COMBINED

SPECIES # I # I I I I I # z

Hydropsyche phalerata 1 0.06 2 0.12 16 0.22 112 0.86 131 0.56 Symphitopsyche sp. - - 2 0.12 - - 1 0.01 3 0.01 Syaphitopsyche bifida - - - - 1 0.01 - - 1 0.00 Potamyia flava 279 16.90 - - 1 0.01 21 0.16 301 1.28 Protoptila sp. - - 1 0.06 5 0.04 6 0.03 Hydroptilidae 1 0.06 1 0.06 5 0.04 7 0.03 Hydroptila 3 0.18 9 0.56 74 1.03 40 0.31 126 0.54 Oxyethira sp. - - 9 0.56 141 1.96 231 1.77 381 1.62 Nectopsyche sp. 1 0.06 1 0.06 1 0.01 3 0.02 6 0.03 Oecetis sp. - - 1 0.06 3 0.04 3 0.02 7 0.03 Triaenodes sp. ------1 0.01 1 0.00 Paraponyx sp. - - - - 8 0.11 10 0.08 18 0.08 Pyralidae - - - - 4 0.06 1 0.01 5 0.02 Petrophila sp. - 1 0.06 - - 5 0.04 6 0.03 Laccophilus sp. - - 1 0.01 1 0.00 Dineutus sp. - - 7 0.05 7 0.03 Gyrinus sp. - - 1 0.06 - - - - 1 0.00 Peltodytes sp. - - 2 0.12 2 0.03 3 0.02 7 0.03 Dubiraphia sp. - - 18 1.12 2 0.03 3 0.02 23 0.10 Nacronychus glabratus 2 0.12 10 0.62 16 0.22 34 0.26 62 0.26 Stenelmis sp. 10 0.61 31 1.92 20 0.28 100 0.77 161 0.68 Hydrophilidae ------1 0.01 1 0.00 Tropisternus spF. - 1 0.01 3 0.02 4 0.02 Enochrus sp. - - 6 0.05 6 0.03 Psephenus herricki - - 1 0.06 - - 1 0.00 Ceratopogonidae - - 5 0.31 7 0.10 18 0.14 30 0.13 Chaoborus sp. 4 0.24 ------4 0.02 Chaob. punctipennis 58 3.51 5 0.31 6 0.08 24 0.18 93 0.40 Tanypus sp. - - 2 0.12 4 0.06 - 6 0.03 Procladius sp. 19 1.15 36 2.23 216 3.00 447 3.42 718 3.05 Coelotanypus sp. 12 0.73 - - 13 0.18 26 0.20 51 0.22 Ablabeseyia sp. 3 0.18 17 1.05 123 1.71 329 2.52 472 2.01 Labrundinia sp. - - 7 0.43 33 0.46 203 1.55 243 1.03 Larsia sp. - - 32 1.99 144 2.00 146 1.12 322 1.37 Thienemannimyia series 1 0.06 21 1.30 36 0.50 52 0.40 110 0.47 Thienemannimyia sp. - - 3 0.19 1 0.01 5 0.04 9 0.04 Diamesa sp. - - 1 0.06 1 0.01 - - 2 0.01 Corynoneura sp. ------2 0.02 2 0.01 Ceryoneura - - 1 0.06 - - - - 1 0.00 Thienemanniella sp. - - 10 0.62 18 0.25 14 0.11 42 0.18 Cricotopus sp. 116 7.03 8 0.50 13 0.18 47 0.36 184 0.78 Cricotopus tremulus grp. 3 0.18 3 0.19 5 0.07 8 0.06 19 0.08 Cricotopus bicinctus grp. 13 0.79 6 0.37 30 0.42 48 0.37 97 0.41 Cricotopus trifascia grp. - - 9 0.56 4 0.06 12 0.09 25 0.11 Cricotopus sylvestris grp. 5 0.30 - - 56 0.78 21 0.16 82 0.35 Eukiefferiella sp. - - - - 2 0.03 - - 2 0.01

C-4 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1980 MACROINVERTEBRATE DATE TOTAL NUMBER AND PERCENT OF ORGANISMS COLLECTED

SITE ------.------.------ALL SITES DISCHARGE HORSE CREEK INTAKE KANKAKEE RIVER COMBINED

SPECIES I Z I I # I # Z I Z

Hydrobaenus sp. 1 0.06 1 0.06 2 0.03 4 0.02 Lianophyes sp. - - I 0.06 - - 1 0.00 Orthocladius sp. 2 0.12 49 3.04 62 0.86 18 0.14 131 0.56 Nanocladius sp. 44 2.67 9 0.56 9 0.13 88 0.67 150 0.64 Parakrefferiella 154 9.33 33 2.05 10 0.14 8 0.06 205 0.87 Rheocricotopus - - 1 0.06 4 0.06 1 0.01 6 0.03 Smittia - - - - 1 0.01 1 0.00 Tvetenia discoloripes grp. 1 0.06 - - - 4 0.03 5 0.02 Chironomus - - 6 0.37 30 0.42 25 0.19 61 0.26 Deticryptochironomus I 0.01 1 0.01 2 0.01 Cryptochironosus 8 0.48 2 0.12 4 0.06 32 0.25 46 0.20 Cryptotendipes - - 2 0.12 8 0.t1 14 0.1 24 0.10 Dicrotendipes 396 23.99 10 0.62 47 0.65 68 0.52 521 2.22 Endochrionomus - - I 0.06 - - - - 1 0.00 Slyptotendipes - - 1 0.06 - - - - 1 0.00 Harnischia 10 0.61 - 5 0.07 10 0.08 25 0.11 Hicrotendipes - - 1 0.06 3 0.04 1 0.01 5 0.02 Parachironomus 102 6.18 1 0.06 3 0.04 19 0.15 125 0.53 Parachiron. cf frequens - - - - 1 0.01 - - 1 0.00 Paracladopelma - - 1 0.06 3 0.02 4 0.02 Paralauterborniella - - 1 0.06 - - 1 0.00 Paratendipes - - 1 0.06 6 0.08 - - 7 0.03 Polypedilum sp. 9 0.55 19 1.18 105 1.46 69 0.53 202 0.86 Polypedilum convictue 12 0.73 64 3.97 553 7.69 228 1.75 857 3.65 Polypedilum scalaenue - - 1 0.06 18 0.25 3 0.02 22 0.09 Polypedilus sisulans - - - - 1 O.O 1 0.01 2 0.01 Stenochironomus - - 1 0.06 1 0.01 1 0.01 3 0.01 Stictochironomus - - 3 0.19 3 0.04 - - 6 0.03 Tribelos - - 2 0.12 3 0.04 1 0.01 6 0.03 Cladotanytorsus - - 4 0.25 I 0.01 - - 5 0.02 Paratanytarsus - - 3 0.19 1 0.01 6 0.05 10 0.04 Rheotanytarsus 60 3.63 23 1.43 57 0.79 207 1.59 347 1.48 Stempellina - - 3 0.19 - - - - 3 0.01 Tanytarsus 10 0.61 70 4.34 56 0.78 70 0.54 206 0.88 Zavrelia ------1 0.01 1 0.00 Culicidae - - - 2 0.03 4 0.03 6 0.03 Anopheles sp. - - 3 0.19 - - - - 3 0.01 Culex sp. - - 1 0.06 4 0.06 - - 5 0.02 Psychoda - - 10 0.62 9 0.13 17 0.13 36 0.15 Simuliidae - - 1 0.06 1 0.01 2 0.02 4 0.02 Simulium 4 0.24 40 2.48 36 0.50 15 0.11 95 0.40 Tipula sp. - - 1 0.06 - - - - 1 0.00 Empididae - - - - 1 0.01 - - 1 0.00 Stratomyiidae - - 1 0.06 1 0.01 1 0.01 3 0.01 Tabanus sp. ------1 0.01 1 0.00 Pleuroceridae ... . 2 0.02 2 0.01

C-5 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATE TOTAL NUMBER AND PERCENT OF ORGANISMS COLLECTED

SITE ------.----.-----.------.------ALL SITES DISCHARGE HORSE CREEK INTAKE KANKAKEE RIVER COMBINED

SPECIES # Z # Z # Z I Z # Z

Pleurocera sp. - - 6 0.05 6 0.03 Goniobasis sp. - - 1 0.01 1 0.00 Lymnaea sp. 1 0.06 - 6 0.08 - - 7 0.03 Physidae - - - - 1 0.01 1 0.00 Physa sp. 8 0.48 81 5.02 242 3.37 123 0.94 454 1.93 Planorbidae - - - - 2 0.02 2 0.01 Gyraulus sp. 1 0.06 34 0.47 26 0.20 61 0.26 Helisola sp. 1 0.06 - - - - 1 0.00 Ferrissia sp. - - 6 0.08 10 0.08 16 0.07 Corbicula fluminea 1 0.06 - - 9 0.07 10 0.04 Sphaeriidae 4 0.24 2 0.12 1 0.01 - - 7 0.03 Unidentified 3 0.18 - 1 0.01 1 0.01 5 0.02

TOTAL MACROINVERTEBRATES 1651 100.00 1612 100.00 7190 100.00 13056 100.00 23509 100.00

C-6 APPENDIX D

ENTRAINMENT -- MACROINVERTEBRATE DENSITIES, 1988

D-1 COMMONNEALTH EDISON COMPANY - BRAIDMOOD STATION - 198B RACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/103) -.------...... ------SITEaDISCHARGE ------DATE: 12APR88 TIME: DAY NIGHT LOC.: LOC.: 01 DI DEPTH DEPTH MID MID REP: REP: 2 2 (DEN) (DEN)

SPECIES Hydra 1.1 0.2 Planariidae 0.2 Nematoda - 0.2 Ibis pardalis 0.6 - Nais variabilis 2.3 0.6 Enallagla sp. - 0.2 Nydropsyche orris - 0.2 Potamyia flava 7.9 8.4 Hydroptilidae 0.2 - Nectopsyche sp. 0.2 - Chaob. punctipennis 0.2 - Cricotopus sp. 1.5 0.6 Hydrobaenus sp. - 0.2 Parakrefferieila 15.1 14.8 Dicrotendipes 0.2 - Rheotanytarsus 1.1 0.6 Unidentified - 0.6 TOTAL NACROINVERTEBRATES 30.5 26.6

D-2 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (I/1%a3) ------SITE=DISCHARGE ------DATE: 03MAY88 TIME: DAY NIGHT LOC.: LOC.: DI DI DEPTH DEPTH MID MID REP: REP: I I (DEN) (DEN)

SPECIES Hiydra 0.9 1.5 Panariidae 0.2 0.2 Nais variabilis 0.4 0.3 Paranais frici 0.2 0.2 Crangonyx sp. 0.2 - Hydracarina (acarina) - 0.2 Isonychia sp. - 0.3 Stenacron sp. - 0.2 Stenonusa sp. - 1.7 Stenonema pulchellum - 0.2 Stenonema terainatum - 0.9 Tricorythodes sp. - 0.3 Caenis sp. - 0.5 Potamanthus sp. - 0.2 Perlidae 0.2 Hydropsyche orris . 0.3 Potamyia flava 7.2 11.5 Hydroptila - 0.2 Macronychus glabratus - 0.3 Stenelmis sp. - 1.5 Chaob. punctipennis 0.2 0.2 Procladius sp. 0.2 0.3 Thienemannimyia series - 0.2 Cricotopus sp. 1.8 0.7 anocladius sp. 0.9 - Dicrotendipes 0.2 0.3 Polypedilum sp. - 0.2 Rheocanytarsus 1.1 0.9 Tanytarsus - 0.2 Siulium 0.2 TOTAL MACROINVERTEBRATES 13.3 23.9

D-3 COMMONWEALTH EDISON CONPANY - BRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ------.--...... ------SITEMDISCHARGE ------DATE= 17MAY89 TINE: DAY NIGHT LOC.: LOC.: DI Dl DEPTH DEPTH MID MID REP: REP: 2 2 (DEN) (DEN)

SPECIES Planariidae 0.2 - Nais bretscheri - 0.2 Nais variabilis 0.6 1.8 Crangonyx sp. 0.2 Hydracarina (acarina) - 0.4 Pseudocloeon sp. 0.2 18.3 Heptageniidae - 0.2 Pseudiron sp. - 0.2 Stenacron sp. - 0.2 Stenonesa sp. - 1.0 Stenonema terminatue - 0.8 ricorythodes sp. - 0.6 aenis sp. 0.4 0.4 Ephemeridae - 0.2 Cyrnellus fraternus 0.2 5.9 Potaiyia flava - 0.2 Stenelsis sp. - 0.2 Chaob. punctipennis - 2.3 Procladius sp. 0.4 1.6 Coelotanypus sp. - 0.4 Ablabessiya sp. - 0.4 Cricotopus sp. 1.2 1.2 Cricotopus tresulus grp. 0.2 - Cricotopus bicinctus grp,. - 0.8 Cricotopus sylvestris grp. - 0.2 Orthocladius sp. 0.4 - Nanocladius sp. 1.8 0.8 Tvetenia discoloripes grp. - 0.2 Dicrotendipes 0.4 2.3 Polypedilun sp. - 0.2 Rheotanytarsus 0.2 1.4 Tanytarsus - 0.6 Siouliu - 0.2 TOTAL MACROINVERTEBRATES 6.5 42.9

D-4 COMMONNEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------...... ------SITEzDISCHAR6E ------

DATE: 07JUN89 TIME: DAY NI6HT LOC.: LOC.: D1 DI DEPTH DEPTH MID MID REP: REP: 1 2 (DEN) (DEN)

SPECIES Planariidae - 0.2 Hydracavina (acarina) 0.4 0.4 Daetis sp. 0.4 0.2 Pseudocioeon sp. 0.2 - CyrnellusH. eaculipennis fraternus -- 0.20.4 Potamyia flava 0.4 4.5 t 0.2 HjdropCaoboresila sp. - 0.7 Chaob. gunctipennis - 2.5 Procladius sp. - 1.1 Coelotanypus sp. - 1.8 Cricotopus sp. 7.3 6.9 Cricotopus tremulus grp. 0.4 - Cricotopus bicinctus grp. 0.4 0.7 Nanocladius sp. 2.3 0.7 Cryptochironomus - 1.4 Dicrotendipes 0.2 10.8 Parachironouus - 3.6 Polypedilum sp. - 1.1 Polypedilue convictum 0.5 - Rheotanytarsus 0.2 0.7 Simulium 0.2 - Lyanaea sp. 0.2 - Physasp. 0.7 - TOTAL NAROINVERTEBRATES 13.7 37.9

D-5 COMMONWEALTH EDISON COMPANY - BRAIDMOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (/11003) --.------...... ------SITE=DISCHAR6E ------DATE: 28JUN98 TINE: DAY NIGHT LOC.: LOC.: 01 DI DEPTH DEPTH MID MID REP: REP: 1 2 (DEN) (DEN)

SPECIES Planariidae - 1.4 Ophidonais serpentina 0.1 Stylaria lacestris 0.3 - Hydracarina (acarina) 0.1 1.2 Pseudocloeon sp. 0.4 - Stenoneua sp. 0.1 0.2 Tricorythodes sp. 0.3 0.5 Canis sp. 0.3 0.9 Coenagrionidae - 0.2 Corixidae 0.1 - Cyrnellus fraternus 0.1 0.2 Neureclipsis 0.1 - Hydropsyche phalerata - 0.2 Potasyia flava 7.3 2.5 0.1 - Hydroptilahaob, penc ipennis 3.3 1.5 Ablabesiyja sp. 0.1 - Cricotopus bicinctus grp. 0.4 - Cricotopus sylvestris grp. 0.6 - Nanocladius sp. 0.6 1.2 Dicrotendipes 0.3 72.7 Harnischia - 2.3 ParachironoUs 0.3 19.5 Polypedilum sp. 0.1 - Polypedilum onvictuo 1.3 - Rheotanytarsus 0.3 5.8 Tanytarsus 0.1 1.2 Simulium 0.1 - spA 0.6 - SohaeriidaePhysa - 0.9 TOTAL MACROIHVERTEDRATES 18.0 111.4

D-6 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 19898 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTDRATES FOR EACH DATE AT EACH SITE (0l/103) ------SITE-HORSE CREEK ------DATE: 19APRB8 TINE: DAY LOC.: HI DEPTH DOT REP: 2 (DEN)

SPECIES Nais pardalis 0.2 Heptageniidae 0.2 Stenouma tripunctatum 0.2 Hydroptilidae 0.2 Psephenus herricki 0.2 Rheotanytarsus 0.2 TOTAL MACROINVERTEBRATES 1.0

D-7 COMMONNEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) --.-.--.-...... ------SITE:HORSE CREEK ------DATE= 26APRBB TINE: NI6HT LOC.: HI DEPTH BOT REP: 4 (DEN)

SPECIES Nematoda 0.2 Dero sp. 0.2 Nais sp. 0.2 Nais pardalis 1.0 Nais variabilis 0.4 6amarus sp. 0.2 Pseudocloeon sp. 0.2 Stenacron sp. 0.4 Caenis sp. 0.4 Potananthus sp. 0.2 Ephesera sp. 0.2 Argia sp. 0.2 Perlidae 0.2 Corixidae 0.6 Chisarra obscura 0.2 Ablabesmyia sp. 0.4 Diamesa sp. 0.2 0.2 OrthocladiusHydrobaenus sp.sp. 0.4 Rheocricotopus 0.2 Polypedilum sp. 0.2 Tany arsus 8.3 Simulium 1.2 TOTAL MACROINVERTEBRATES 16.2

D-8 COMMONNEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINYERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ...... ------SITE=HORSE CREEK ------DATE: 03MAY88 TINE: DAY NIGHT LOC.: LOC.: Hi HI DEPTH DEPTH DOT DOT REP: REP: 3 2 (DEN) (DEN)

SPECIES Chietogaster diaphanus - 1. NiiS sp. - 0.2 Nais pardalis - 4.5 Nais variabilis 0.4 2.7 Paranais frici - 3.5 Stylaria lacustris 0.4 0.4 Pseudocloeon sp. - 0.2 Stenacron sp. 0.2 Camnis sp. 0.2 Dubiraphia sp. 0.2 2 Tanypus sp. 0.2 Abiabhesyla sp. - 0.2 Labrundinia sp. - 0.6 Larsia sp. 0.2 Thienemannimyia series - 0.8 Ceryoneura - 0.2 Thienemanniella sp. - 0.2 Cricotopus bicinctus grp. - 0.2 Cricotopus trifascia grp. - 0.4 Lianophyes sp. - 0.2 Orthocladius sp. 1.4 4.9 Nanocladius sp, 1.4 Parakrefferie]la - 3.1 Chironomus 0.2 Cryptochironomus - 0.2 Cryptotendipes - 0.2 Dicrotendipes - 0.2 Paracladopelma - 0.2 Paratendipes 0.2 Polypedilut sp. 0.2 - Polypedilum convictum 1.2 0.4 Polypedilum scalaenum 0.2 - Cladotanytorsus - 0.8 Paratanytarsus - 0.2 Tanytarsus 0.8 3.5 Siulium - 1.2 Stratomyiidae - 0.2 Corhicua fluuinea - 0.2 TOTAL MACROINVERTEDRATES 5.3 33.9

D-9 CONMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------...... ------.SITEHORSE CREEK ...... DATE: IONAY8S TINE: NIGHT LOC.: HI DEPTH DOT REP: I

(DEN)

SPECIES Tardigrada 0.1 Chaetogaster diaphanus 1.7 Nais pardalis 0.6 Nais variabilis 0.2 Paranais frici 0.1 Slavina appendicIlata 0.2 Stylaria lacustris 0.5 Hydracarina (acarina) 0.1 Pseudocloeon sp. 0.4 Ephemera sp . 0.1 Chimarra obscura 0.1 Dubiraphia sp. 0.1 Ceratopogonidae 0.1 Procladius sp. 0.1 ThienemannieTIa sp. 0.1 Orthocladius ip, 1.9 ParakrefferielIa 1.9 Chironomus 0.2 Cryptotendipes 0.1 Dicrotendipes 0.5 Polypedilus sp. 0.1 Polypedilus convictum 0.1 Stictochironomus 0.2 Paratanytarsus 0.2 Rheotanytarsus 0.9 St:seplina 0.2 Si jul 1.1 TOTAL MACROINVERTEBRATES 12.4

D-1O COMNONNEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------SITE=HORSE CREEK ------DATE: 17MAY88 TINE: DAY LOC.: HI DEPTH DOT REP: 2 (DEN)

SPECIES Chaetogaster diaphanus 1.8 Nais variabilis 0.4 Ophidonais serpentina 0.4 Paranais frici 0.3 Hydracarina (acarina) 0.1 Daetis sp. 0.1 Dubiraphia sp. 1.3 Stmnelmis sp. 0.1 Ceratopogonidae 0.1 Procladius sp. 0.3 Thienesanniella sp. 0.1 Cricotopus sp. 0.1 Cricotopus bicinctus grp. 0.3 Orthocladius sp. 0.1 Parakrefferiella 0.3 Chironosus 0.3 Polypedilum convictum 0.9 Tribelos 0.1 Rheotanytarsus 0.1 Stespellina 0.1 TOTAL NACROINVERTEBRATES 7.9

D-11 CONMONNEALTH EDISON COMPANY - BRAIDNOOD STATION - 1998 NACROINVERTEDRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------...... ------SITE:HORSE CREEK ------DATE: 24NAY99 TINE: NIGHT LOC.:

Hl DEPTH DOT REP: 2 (DEN)

SPECIES Chaetogaster diaphanus 1.9 Nais pardalis 0.5 Nais variabilis 6.3 Ophidonais serpentina 0.3 Slavina appendiculata 0.3 Stylaria lacustris !.9 Astacidae 0.3 Baetis sp. 5.5 Centroptilum 0.5 Pseudocloeon sp. 0.3 H. maculipennis 0.8 Stenacron sp. 0.3 Ephoron sp. 0.3 Stenels@ p 0.3 Labrundinia sp. 0.3 Cricotopus sp. 1.4 Cricotopus tresulus grp. 0.3 Cricotopus bicinctus grp. 0.3 Cricotopus trifascia grp. 1.9 Nanocladius sp. 0.5 Parakrefferiella 0.3 Chironomus 0.3 Polypedilum sp. 0.5 Polypedilue convictus 4.4 Tribelos 0.3 Rheotanytarsus 1.9 Tanytarsus 0.5 Siouliidae 0.3 Simulium 4.4 TOTAL NACROINVERTEBRATES 37.4

D-12 CONNONEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF MACROINYERTBRATES FOR EACH DATE AT EACH SITE WtIIO03) ...... ------SITE=HORSE CREEK ------DATE= 07JUN88 TIME: NIGHT LOC.: HI DEPTH DOT REP: 3 (DEN)

SPECIES Nematoda 0.2 Dero digitata 2.7 Nais variabilis 0.4 O1hidonais serpentina 1.1 Piguetiella vichiganensis 0.2 Slavina appendicelata 2.2 Hyalella azteca 0.4 Astacidae 0.4 Daetis sp. 0.9 CentroptLiUM 1.8 Callibaetis 0.2 Pseudocloeon sp. 0.2 H. maculipennis 1.3 Stenacron sp. 0.2 Tricorythodes sp. 0.4 Caenis sp. 0.9 Potamanthus sp. 0.2 Ephoron sp. 0.4 Corixidae 0.7 Dubiraphia sp. 0.9 Stenelmis sp. 0.2 Ceratopogonidae 0.2 Ablabesayia sp. 0.2 Thienesanniiyla series 1.1 Cricotopus sp. 0.4 Dicrotendipes 0.7 Endochrionomus 0.2 ParachironoIUs 0.2 Polypedilum sp. 0.4 Polypedilue convictum 2.0 Rheotanytarsus 0.7 Physais. 2.0 TOTAL NACROINVERTEBRATES 24.5

D-13 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF NACROINYERTDRATES FOR EACH DATE AT EACH SITE (I/10u3) ------SITE:HORSE CREEK ------DATE: 14JUNB8 TIME: DAY LOC.: HI DEPTH DOT REP: 2 (DEN)

SPECIES Callibaetis 0.2 Pseudocloeon sp. 0.2 H. maculipennis 0.6 Caenis sp. 1.0 Ephoron sp, 0.2 Hydroptila 0.4 Stenelmis sp. 0.2 Thienemannimyia series 0.2 ThienemannielIa sp. 0.4 Cricotopus bicincls grp. 0.4 Dicrotendipes 0.2 Polypedilu. convictug 1.0 Physasp. 0.6 TOTAL MACROINVERTEDRATES 5.8-

D-14 COMMONNEALTH EDISON COMPANY - DRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTORATES FOR EACH DATE AT EACH SITE (0/1003) -.-----.---...... ------SITE=HORSE CREEK ------DATE: 21JUN88 TINE: NIGHT LOC.: HI DEPTH ROT REP: 4 (DEN)

SPECIES Hydra 0.2 Hyalella azteca 0.8 Hydracarina (acarina) 0.2 Isonychia sp. 0.2 Baetis sp. 1.5 Centroptilum 2.3 Pseudocloeon sp. 0.2 H.maculipennis 3.6 Tricorythodes sp. 0.6 Caenis Sp. 1.3 Ephoron sp. 0.4 Corixidae 1.3 Chimarra obscura 0.2 Cheamatopsyche sp. 0.8 Hydr~opsyche sp. 0.6 Sydrop syche sp. 0.4 Hydroptipa 0.2 Procladius sp. 0.4 Ablabesayia sp. 0.2 Thieneuanniuyta series 0.2 ThienemannielIa sp. 0.2 Polypedilue sp. 0.6 Polyredilu convictum 1.1 Siffieul 0.2 Tipula sp. 0.2 Sphaeriidae 0.2 TCTAL NACROINVERTEDRATES 18.5

D-15 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------SITE:HORSE CREEK ------DATE= 29JUN88 TINE: DAY LOC., HI DEPTH DOT REP: 2 (DEN)

SPECIES Baetis sp. 0.2 Pseudocloeon sp. 0.2 Caenisusp. 0.2 Chimarra obscura 0.2 Hydropsyche sp. 0.2 Labrundinia sp. 0.2 Thienemannimyia sp. 0.2 Simulium 0.2 TOTAL MACROINVERTEBRATES 1.7

D-16 COMMONNEALTH EDISON CONPANY - BRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF RACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ...... ------SITE:HORSE CREEK ------DATE= 05JULOB TINE: NIGHT LOC.: HI DEPTH DOT REP: 2 (DEN)

SPECIES Hyalella azteca 0.2 Baetis sp. 1.1 Pseudocloeon sp. 0.6 H. maculipennis 0.6 Stenacron sp. 0.2 Stenoneia sp. 0.4 Stenoena tripunctatum 0.2 Tricorythodes sp. 1.9 Caenis sp. 1.1 Netrobates sp. 0.2 Corixidae 1.1 Chimarra obscura 0.4 Hydropsychidae 0.2 Cheuaatopsyche sp. 0.2 Hydropsyche phalerata 0.4 _Hydroptila 0.4 Petrophila sp. 0.2 Dubiraphia sp. 0.2 Racronychus glabratus 0.4 Procladius sp. 0.2 Labrundinia sp. 0.4 Thieneunnimya series 0.2 Polypedilum convictum 0.4 Stenochironomus 0.2 Stictochironomus 0.2 Rheotanytarsus 0.2 Tanytarsus 0.2 Psychoda 0.2 Physasp. 0.6 TOTAL ANCROINVERTEBRATES 13.4

D- 17 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 19B8 RACROINVERTEDRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ------SITE=HORSE CREEK ------DATE: 26JUL98 TIME: DAY LOC.: HI DEPTH 90T REP:

(DEN)

SPECIES Hydra 0.9 Nals colmuni s 0.3 Nais variabilis 0.6 Ophidonais serpentine 0.3 Pristina leidyi 0.3 Stylaria lacustris 9.3 H. maculipennis 0.3 Coenagrionidae 0.6 Delastoaatidae 0.3 Hydroptila 0,6 Oxyetbira sp. 0.3 Nectopsyche sp. 0.3 Macronychus 91abratus 0.6 Ablabeseyia sp. 0.3 Thieneaannimypa series 0.6 Cryptochironosus 0.3 Microtendipes 0.3 Paralauterborniella 0.3 Polypedilum convictum 1.2 Psychoda 0.3 Sphaeriidae 0.3 TOTAL MACROINVERTEBRATES 18.0

D-18 CONNONNEALTH EDISON CONPANY - BRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE ATEACH SITE (1/1023) ------.----...... ------SITE=HORSE CREEK ------DATE: 09AUG88 TINE: NIGHT LOC.: HI DEPTH BOT REP: 4 (DEN)

SPECIES Planariidae 0.6 Nais coalunis 0.2 Pristina ]eidyi 0.2 Stylaria lacustris 12.4 lyalella azteca 1B.8 Gaimarus sp. 0.2 Hydracarina (acarina) 0.4 Baetis se. 3.1 Centroptilus 0.4 Callibaetis 0.8 H. maculipennis 0.8 Stenacron sp. 0.4 Tricorythodes sp. 1.4 Caenis sp. 4.1 Potamant hus sp. 0.2 Coenagrionidae 0.2 Corixidae 0.2 Clisacia sp 2.7 Chisarra obscura 1.0 Polycentropas sp. 0.2 Cheuutopsyche sp. 1.2 Hydropsyche sp. 0.2 Hydroptila 0.2 Oxyehira sp. 0.4 Gyrinus sp. 0.2 Peltodytes sp. 0.2 Dubiraphia sp. 0.2 Nacronychus glabratus 0.4 Stenelmis sp. 5.2 Chaob. punctipennis 1.0 Tanypus sp. 0.2 Procladius sp. 6.2 Ablabesmyia sp. 1.7 Larsia sp. 3.3 Thieneeannimayia series 1.2 Thieneaanaisyia sp. 0.2 Thienesanniella sp. 0.2 Glyp otendipes 0.2 Poypedilu sp. 0.6 Polypedilun convictua 0.8 Rheoanytarsus 0.2 Tanytarsus 1.2 Anopheles sp. 0.6 Culex sp. 0.2 Psychoda 0.4 Physa sp. 4.8 TOTAL NACROINVERTEBRATES 80.6

D-19 COMMONWEALTH EDISON COMPANY - DRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF RACROINVERTDRATES FOR EACH DATE AT EACH SITE (011003) ------..-...... ------.------SITE:HORSE CREEK ------DATE= 23AUGB8 TINE: DAY NIGHT LOC.: LOC.: HI HI DEPTH DEPTH BOT DOT REP: REP: I I (DEN) (DEN)

SPECIES Hydr 0.4 Planariidae 0.4 Chaetogaster diaphanus 0.4 0.6 Ophidomis serpentina - 0.2 S]avina appendiculata 0.2 0.2 Stylaria lacustris 0.6 6.1 Asellus sp. 0.2 - Hyalella azteca - 10.4 Daetis ip. 0.6 0.9 Centroptil.. - 0.2 Callibaetis - 0.6 Stenoneea sp. 0.2 Caenis sp. 0.6 Coenagrionidae - 0.4 Corixidae - 0.2 Chiuarra obscura 0.2 0.4 Hydropsychidae 0.2 Protoptila sp. - 0.2 Hydroptila 0.2 Oxyethira sp. 0.2 0.6 Oecetis sp. 0.2 Oubiraphia sp. 0.2 - 0.4 - Macronychus glabratus 4 Stenelais sp. 0.2 Ablabesuyia sp. 0. .4 Larsia sp. 0.2 2.2 Thienemanninyia series 0.2 - Thieneaanniayia sp. 0.2 - ThienemannielIa sp. - 0.4 Dicrotendipes 0.2 Polypedilue sp. - 0.6 Polypedilus convictum - 0.4 Psychoda - 0.6 Siaulium 0.2 - Physa sp. 0.2 8.2 6yraulus sp. 0.2 - Helisoma sp. 0.2 - TOTAL IMACRQINVERTEBRATES 5.4 36.2

D-20 CONMONNEALTH EDISON COMPANY - BRAIDMOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ------SITEzHORSE CREEK ------DATE: 30AU188 TIME: NIGHT LOC.: HI DEPTH DOT REP: 2 (DEN)

SPECIES Planariidae 0.2 Dero digitata 0.6 Stylaria lacustris 1.2 Hyalella azteca 2.7 BaetisHydracarina sp. (acarina) 0.2 1.2 Centroptilum 0.2 Callibaetis 0.2 Heptageniidae 0.6 Tricorythodes sp. 2.3 Caenis sp. 2.9 Pot~amnthus sp. 0.4 Hexagenia sp. 0.2 Climacia sp. 0.6 Trichoptera 0.2 Chimarra obscura 0.4 Oxyethira sp. 0.4 Pe todytes sp. 0.2 Macronychus glabratus 0.4 Ceratopogonitae 0.4 Ablabesyia sp. 0.2 Larsia sp. 0.8 Polypedilur sp. 0.6 Polypedilur convictum 0.2 Rheot anytarsus 0.2 Psychoda 0.6 Physasp. 0.8 TOTAL &ACROINVERTEBRATES 19.2

D-21 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (6/1003) ------SITE:HORSE CREEK ------DATE: 06SEP88 TINE: DAY LOC.: HI DEPTH DOT REP: 4 (DEN)

SPECIES Hydra 0.6 Nematoda 0.3 Naididae 0.3 Siavina appendiculata 0.3 Stylaria lacustris 0.6 Hyalella azteca 0.3 Daetis sp. I.O Stenelmis sp. 0.3 Thienunanniella sp. 0.3 Polypedilum convictum 0.3 Rheotanytarsus 0.3 TOTAL MACROINVERTEBRATES 4.8

D-22 COMMOHEALTH EDISON CONPANY - DRAIDWOOD STATION - 1988 MACROINVERTEDRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------...... ------SITEcINTAKE ------DATE= 19APR88 TINE: DAY NISHT LOC.: LOC.: It It DEPTH DEPTH TOP TOP REP: REP: 1 2 (DEN) (DEN)

SPECIES Hydra - 0.2 Nesatoda 0.4 - Chaetogaster diaphanus 1.2 0.8 Nais communis - 0.2 Nais pardalis 0.4 0.4 Nais variabilis 0.2 - Ophidonais serpentina 0.2 0.2 Paranais frici 2.2 5.3 Slavina appendiculata 0.2 0.2 Li nodrilus hoffmeisteri - 0.2 Enchytracidae 0.6 - Hydracarina (acarina) - 0.2 Daetis sp. - 0.2 Baetisca bajoleovi - 0.2 Pseudiron sp. - 0.2 Stenonema sp. - 0.2 Tricorythodes sp. - 0.8 Camtis sp. 0.2 0.8 Hexagenia sp. 0.2 1.8 Plecoptera - 0.2 Corixidae - 1.6 Hydropsychidae - 0.2 Hydropsyche phalerata - 0.2 Hydroptila 0.2 0.6 Procladius sp. - 0.4 Ablabessyia sp. - 0.8 Labrundinia sp. - 0.2 Diasesa sp. - 0.2 Orthocladius sp. - 0.6 Chironomus - 0.2 Polypedilu. convictue 0.6 1.0 Rheotanytarses - 0.2 Tanytarsus - 0.2 Sibulium - 0.2 TOTAL MACROINVERTEBRATES 6.7 19.8

D-23 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBIATE DATA DENSITY OF MACROINVERTIRATES FOR EACH DATE AT EACH SITE (i11003) ------SITE:INTAKE ------DATE= 26APR8B TINE: DAY NIGHT LOC.: LOC.: It II DEPTH DEPTH DOT TOP REP: REP: 1 2 (DEN) (DEN)

SPECIES Naididae 0.2 Chaetogaster diaphands 0.3 - Dero 0.2 Dero dgitata.2 Nais pardalis 0.1 - Nais variabilis 0.3 - Ophidonais serpentina 0.1 0.2 Paranais frici 1.0 2.7 Piguetiella michiganensis 0.2 Slavina append icu ata 0.1 0.3 Stylaria lacustris 0.2 vejdovskyella intersedia 0.2 Branchiura soverbyi 0.1 - lIsm tub. vlo cc 0.2 Enchytracidae 0.2 0.2 Hyalella azteca 0.2 Baetis sp. 0.2 Pseudiron sp. 0.2 Tricorythodes sp. 0.2 Hexagenia sp. 0.1 1.3 Perlidae 0.1 0.2 Corixidae - 0.6 Hydroptila 0.7 0.8 Dubiraphia sp. 0.2 Stenelmis sp. 0.2 Thienemanninyia series 0.1 Cricotopus trifascia grp. - 0.2 Eukiefferiella sp. - 0.2 Hydrobaenus sp. 0.1 0.2 Orthocladius sp. 0.3 1.3 Chironomus - 0.2 Dicrotendipes 0.1 - PolypedilusParatendipes convictus 0.3 0.30.6 Rheo anytarsns 0.1 Tanytarses 0 0. Simulius 0.1 0.8 Unidentified 0.1 - TOTAL NACROINVERTEBRATES 4.3 12.8

D-24 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------SITE=INTAKE ------DATE= 03MAY89 TIME: DAY NIGHT LOC.: LOC.: II 12 DEPTH DEPTH DOT DOT REP: REP: 2 2 (DEN) (DEN)

SPECIES Paranais frici 0.5 0.1 Hyalella azteca - 0.4 Crangonyx sp. - 0.1 Baetis sp. - 0.4 Stenonema sp. - 0.4 Serratella frisonl - 0.1 Caenis sp. - 0.1 Potamnths sp. - 0.3 Hexagenia sp. - 0.3 Isoperla sp. - 0.1 Corixidae - 0.1 Chimarra obscura - 0.9 Hydropsyche sp. - 0.1 Hydropsyche betteni - 0.1 Syaphitopsyche bifida - 0.1 Hydropti a 0.2 Slenelni sp - 0.8 Prociadius sp. - 3.6 Ablabesnyia sp. - 0.1 Larsia sp. - 0.3 Thienemannimypa series - 0.7 Cricotopus sp. 0.2 - Orthocladius sp. 1.2 2.3 ParakrefferielIa - 0.1 Rheocricotopus - 0.4 Chironoeus - 0.1 Paratendipes - 0.3 Poiypedilum convictum 0.7 0.1 Tribelos - 0.1 Paratanytarsus - 0.1 Rheotanytarsus - 0.3 Tanytarsus - 0.3 Sioulium - 0.1 TOTAL MACROINVERTEBRATES 2.8 13.7

D-25 COMMONNEALTH EDISON COBPANY - BRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ---- . . ..-...... ------SITE=INTAKE ------DATE: 10MAY98 TINE:

DAY NIGHT LOC.: LOC.: It 12 DEPTH DEPTH DOT TOP REP: REP: I I (DEN) (DEN)

SPECIES Chaetogaster diaphanus 0.9 2.1 ais elingis - 0.1 Nais pardalis - 1.2 Nais variabilis - 0.9 Ophidonais serpentina - 1.0 Paranais frici 1.0 Pristina 0.2 - Stylaria lacustris 0.4 1.5 Vejdovskyella intermedia 0.2 - Enchytracidae 0.2 0.1 Baetis sp. 0.4 Pseudocloeon sp. - 3.6 Stenacron sp. - 0.3 Potamanthus sp. 0.1 Hexagenia sp. - 0.1 Plecoptera - 0.9 Corixidae 0.1 Cyrnellus fraternus - 0.1 Hydroptila 0.4 Oecetis sp. - 0.1 Procladius sp. - 0.6 Thienemannimyia series - 0.3 Thienemanniella sp. 0.2 0.1 Cricotopus tremulus grp. - 0.1 Cricotopus bicinctus grp. 0.2 0.1 Cricotopus trifascia gyp. 0.2 0.3 Orthocladius sp. 0.7 2.7 Nanocladius sp. 0.2 0.1 ParakrefferielIa 0.5 0.4 Rheocricotopus 0.2 - Cryptochironomus - 0.3 Dicrotendipes 0.2 0.1 Polypedilum sp. 0.2 0.1 Polypedilum convictum 0.2 0.6 Polypedilum sisulans 0.2 - Stictochironomus - 0.3 Rheotanytarsus - 1.3 Tanytarsus - 0.7 Sioulium - 1.2 TOTAL MACROINVERTEBRATES 4.7 23.1

D-26 CONMONMEALTH EDISON COMPANY - BRAIDHOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (011003) ...... ------SITE=INTAKE ------DATE: 17MAY88 TIME: DAY NI6HT LOC.: LOC.: 11 II DEPTH DEPTH BOT DOT REP: REP: 2 3 (DEN) (DEN)

SPECIES Nematoda - 0.2 Chaetogaster diaphanus - 0.4 Nais coaunis - 0.6 Nais elinguis - 0.2 Nais pardalis 0.1 0.8 Nais variabilis 0.3 5.9 Ophidonais serpentina 0.1 0.2 Paranais frici - 0.6 Stylaria lacustris - 0.4 Isonychia sp. 0.1 0.2 Baetis sp. - 4.7 Centroptilum - 1.4 Pseudocloeon sp. - 9.4 Heptageniidae - 3.3 Stenonema sp. - 0.4 Tricorythodes sp. - 0.2 Caenis sp. - 0.2 Perlesta sp. 0.1 Corixidae - 0.2 Stenelmis sp. - 0.4 Procladius sp. - 0.8 Thienemanninyii series - 0.2 Thienemanniella sp. - 1.6 Cricotopus sp. - 0.6 Cricotopus tremulus grp. - 0.8 Cricotopus bicinctus grp. 0.1 2.0 Cricotopus sylvestris grp. 0.1 0.2 Orthocladius sp. - 0.6 Parakrefferiella 0.1 0.2 Chironouus 0.4 Dicrotendipes - 0.2 Polypedilus sp. - 0.4 Polypedilum convictu 0.9 0.2 Stic tochironomus - 0.2 Cladotanytorsus - 0.2 Rheotanytarsus - 1.8 TOTAL MACROINVERTEBRATES I.B 40.4

D-27 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTDRATES FOR EACH DATE AT EACH SITE (1/1003) ------...... ------.. SITE:INTAKE ------DATE= 24MAYBB TIME: DAY NIGHT LOC.: LOC.: I1 12 DEPTH DEPTH DOT BOT REP: REP: 2 2 (DEN) (DEN)

SPECIES Neaatoda 0.1 - Chaetogaster diaphanus 0.2 - Nais pardalis 0.1 - Nais variabilis - 2.7 Ophidonais serpentina 0.1 - Paranais frici - 0.7 Stylaria lacustris - 1.3 Crangonyx sp. - 0.7 Isonychia sp. - 0.7 Baetis sp. 0.3 79.2 Centroptilum - 13.3 Callibaetis 10.6 Pseudocloeon sp. - 17.3 Heptageniidae 4.0 H. maculipennis - 4.0 Stenacron sp. - 0.7 Hexagenia sp. - 0.7 Ephoron sp. - 4.7 Corixidae - 1.3 Procladius sp. - 1.3 Cricotopus sp. 0.4 - Cricotopus blcinctus grp. 0.2 - Cricotopus sylvestris grp. 1.3 2.0 Nanocladius sp. 0.2 - Chironoaus 0.2 0.7 Polypedilum sp. 0.4 - Polypedilum convictue 14.7 11.3 1 Anaea sp. - 0.7 y1 0.2 0.7 TOWAL MNCROINYERTEBRATES 18.5 159.4

D-28 CONNONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1989 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (U/1003) ---.----.--...... ------SITEmINTAKE ------DATE: 31MAY88 TINE: DAY NIGHT LOC.: LOC.: I1 14 DEPTH DEPTH BOT TOP REP: REP: I I (DEN) (DEN)

SPECIES Hydra 1.0 0.4 Chaetogaster diaphanus 0.3 - Nais variabilis 0.6 0.5 Stylaria lacustris 0.1 0.1 61ossiphonildae - 0.2 Hyalella azteca - 0.1 Crangonyx sp. 0.1 - Isonychia ip- 2.9 Baetis sp. 3.1 11.2 Centroptilum 4.2 Callibaetis - 2.3 Pseudocloeon sp. 0.6 3.6 H. maculipennis 0.1 4.4 Stenacron sp. . 0.1 Potamanthus sp. 0.1 0.6 Ephoron sp. - 1.2 Corixidae - 0.6 Hydropsyche phalerata - 0.2 Procladius sp. - 9.9 Coelotanypus sp. - 0.2 Ablabeseypa sp. - 2.4 Larsia sp. - 0.5 Thienemannimyia series - 0.2 Eukiefferiella sp. 0.1 - Nanocladius sp. 0.1 - Parakrefferiella 0.1 - Chironomus - 1.4 Cryptotendipes - 1.0 Dicrotendipes - 0.2 Parachiron. cf frequens 0.1 - Polypedilum sp. 0.4 0.5 Polypedilum convictum 1.0 0.2 Tanytarsus - 0.2 Simuliidae - 0.1 Physasp. 0.3 0.1 TOTAL WACROINVERTEBRATES 8.3 49.7

D-29 COMMONWEALTH EDISON COMPANY - BRAIDtOOD STATION - 1998 MACROINVERTEDRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------...... ------SITE:INTAKE ------DATE: 07JUN88 TIME: DAY NIGHT LOC.: LOC.: 12 14 DEPTH DEPTH TOP DOT REP: REP: 2 1 (DEN) (DEN)

SPECIES RHydr - 0.1 haetogaster diaphanus 0.1 Nais variabilis 1.3 0.1 Ophidonais serpentina 0.1 0.3 Stylaria lacustris 0.2 0.3 Isonychia sp. - 0.4 Daetis sp. 0.5 0.4 Centroptille - 0.3 Pseudocloeon sp. 0.1 0.8 H. maculipennis 0.2 1.4 Stenonema intergrus - 0.1 ricorythodes sp. - 0.4 Caenis sp. - 0.3 Argia sp. 0.1 Corixidae - 0.1 Hydropsyche phalerata 0.2 - Hydroptila 0.2 0.1 Macronychus glabratus 0.1 - Procladius sp. - 0.2 Ablabesmyia sp. 0.2 1 Larsia sp. - 0.1 Cricotopus sp. 0.2 - Cricotopus bicinctus rp. 0.5 - Cricotopus sylvestris grp. 0.2 0.3 Chironosus - 0.3 eiicryptochironoaus " 0.1 Polypedilum sp. 1.8 Polypedilus convictum 14.0 1.6 Rheotanytarsus 0.5 0.3 Tanytarsus 0.2 - Simulium 0.5 0.1 Lymnaea sp. 0.1 - ph 1.1 0.1 TOTAL M•CROINVERTEBRATES 22.5 8.9

D-30 COMNONNEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (011003) ------..-.-...... ------SITE:INTAKE ------DATE= 14JON88 TIME: DAY NIGHT LOC.: LOC.: 14 12 DEPTH DEPTH TOP BOT REP: REP: 2 I (DEN) (DEN)

SPECIES Hydracarina (acarina) 0.1 0.1 Isonychia sp. 0.1 1.2 Baetis sp. - 0.5 Callibaetis - 0.4 Pseudocloeon sp. - 3.3 H.eaculipennis 0.1 1.9 Stenonesa sp. - 0.4 Tricorythodes sp. - 0.3 Casnis s. - 0.8 Potamntgus sp.- O. Hexagenia sp. - 0.1 Ephoron sp. 0.1 Corizidae 0.5 Cheumatopsycbe sp. - 0.1 0.3 0 Senelmisydropsyche sp., palerata 0.4 Ablabesayia sp. - 0.3 Thienemanniayua series 0.1 0.1 Nanocladius sp. 0.1 - Dicrotendipes - 0.1 Poliypedilu convictum - 0.1 TOTAL NACROINVERTEBRATES 1.0 11.2

D-31 CONMONWEALTH EDISON CONPANY - BRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF RACROINVERTBRATES FOR EACH DATE AT EACH SITE (I/10@3) ------.....------SITE=INTAKE ------DATE: 21JUN68 TIME: DAY NIGHT LOC.: LOC.: 12 13 DEPTH DEPTH DOT DOT REP: REP: 2 1 (DEN) (DEN)

SPECIES Ophidonais serpentina 0.2 - Stylaria Iaceus ris 0.6 - Isonychia sp. - 0.9 Baetis sp. - 3.6 Centroptlum - 1.0 Callibaetis - 2.4 Pseudocloeon sp. - 15.0 H. maculipennis - 1.0 Stenonesa sp. - 0.5 Tricorythodes sp. . 3.1 Caenis sp. - 9.0 Corixidae - 9.0 Neureclipsis - 0.2 Cheumatopsyche sp. - 0.2 Hydropsyche phalerata 0.2 0.3 Nacronychus glabratus - 0.2 Stenelmis sp. - 0.2 Procladius sp. - 0.3 Ablabessyia sp. 0.2 0.7 Cricotopus sylvestris grp. 1.7 0.2 0.3 - Dicrotendipes . Polypedilui convictussp. 0.2 0.30.2 Tribelos - 0.3 Rheotanytarsus 0.2 0.2 Tanytirsus - 0.2 Psychoda 0.2 - Physasp, 0.6 TOTAL MACROINVERTEBRATES 4.2 41.7

D-32 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (011003) ------...... ------SITExINTAKE ------DATE: 28JUN8O TINE: DAY NIGHT LOC.: LOC.: 14 14 DEPTH DEPTH DOT TOP REP. REP: I 1 (DEN) (DEN)

SPECIES Nais variabilis - 0.2 hidonais serpentina - 0.2 Stylaria lacusiris 0.2 0.9 Baetis sp. 0.2 0.2 Centroptilum - 1.1 Callibaetis - 0.1 Pseudocloeon sp. 1.3 0.7 H. eaculipennis - 0.2 Stenacron sp. - 0.1 Stenoneua sp. 0.2 0.4 Tricorythodes sp. 0.3 0.3 Caenis sp. 0.2 0.2 Hexagenia sp. - 0.2 Corixidae - 0.7 Oecetis sp. 0.2 Dubiraphia sp. 0.1 Stenelis p. 0.1 Procladius sp. - 0.1 Coelotanypus sp. - 0.1 Ablabesayia sp. 0.2 Labrundinia sp. 0.1 Thienemanniiyia series 0.1 Cricotopus sp. - 0.2 Cricotopus bicinctus grp. - 0.2 Cricotopus sylvestris grp. - 0.1 Nanocladius sp. - 0.2 Dicrotendipes - 0.7 Harnischia 0.3 Polypedilum sp. - 0.2 Polypedilut convictum 0.2 0.2 Rheotanytarsus - 0.2 Tanytarsus - 0.2 Physa sp. 0.2 0.2 Sphaeriidae - 0.1 TOTAL MACROINYERTEBRATES 2.7 8.7

D-33 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEDRATE DATA DENSITY OF NACROINVERTDRATES FOR EACH DATE AT EACH SITE (0/1003) ------SITE=INTAKE ------DATE= 05JUL86 TIME: DAY NIGHT LOC.: LOC.: 13 13 DEPTH DEPTH TOP SOT REP: REP: I I (DEN) (DEN)

SPECIES Hydra 0.1 0.1 P anariidae 0.1 0.1 Nais variabilis 0.1 0.5 Ophidonais serpentina 0.1 - Savina appenaEculata 0.1 - Stylaria lacustris 0.7 1.1 Hyalella azteca - 0.1 Hydracarina (acarina) 0.3 Isonychia sp. 0.1 1.3 Baetis sp. 0.- 1.5 Centroptilum - 1.1 Callibaetis 1.5 Pseudocloeon sp. 0.6 4.7 H. ,aculipennis - 2.3 Stenacron sp. - 0.4 Stenoneu sp. 0. 3.7 Tricorythodes sp. 0.3 11.7 Caenis s. - 6.1 Potauanthus sp. - 0.5 Hexagenia sp. 1.3 Coenaqrionidae - 0.4 6erridae - 0.! Corixidae - 3.2 Cheumatopsyche sp. - 0.4 Hydropsyche sp. 0.1 - Hydropsyche phalerata - 0.7 Hydroptzia 0.1 Oxyethira sp. 0.3 Oecetis sp. 0.1 Peltodytes sp. 0.1 Macronychus glabratus 0.1 0.1 Stenelmis sp. - 0.3 Procladius sp. - 0.5 Coelotanypus sp. - 0.3 Ablabesayia sp. 0.1 Labrundinia sp. - 0.1 Thienesannimypa series - 0.4 Cricotopus bicinctus grp. - 0.4 Cricotopus sylvestris grp. 0.3 0.8 Chironomus - 0.3 Dicrotendipes 0.1 0.4 Harnischia - 0.1 Po ypediluem sp. - 0.3 Polypedilum convictum 1.2 1.2 Rheotanytarsus 0.1 0.1 Sioulium O.1 Empididae 0.1 IyenaeaP1ysa psp. 1.00.1 3.1 TOEAL HMCROINVERTEBRATES 5.5 52.5

D-34 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 198B MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE ATEACH SITE (1/1003) -----.-----...... ------SITEzINTAKE ------DATE: 19JUL88 TIME: DAY NIGHT LOC.: LOC.: 14 12 DEPTH DEPTH DOT DOT REP: REP: 2 2 (DEN) (DEN)

HydraSPECIES 0.5 Planariidae 0.2 Chaetogaster diaphanus 1.1 Dero digitata 0.2 Ophidonais serpentina 0.2 - Stylaria lacustris 20.1 3.3 Hyalella azteca 0.2 2.0 Hydracarina (acarina) - 2.6 4sonychia sp. - 2.0 Baetidae 0.2 - Daetis sp. 0.2 2.0 Callibaetis - 2.0 Pseudocloeon sp. - 3.3 H. taculipennis - 5.9 Stenacron sp. - 2.0 Stenoneva sp. - 2.6 Tricorythodes sp. 0.5 64.5 Caenis sp. - 5.9 Hexagenia sp. - 57.3 Coenagrionidae 0.3 3.3 Berridae - 0.7 Corixidae - 1.3 Hydroptila 0.5 6.5 Oxyethira sp. 4.1 9.8 NecEtopsyche sp. 0.2 - Nacronychus 91abratus - 1.3 Stenelais sp. - 0.7 Procladius sp. - 5.9 Ablabeslyia sp. 1.1 3.9 Labrundinia sp. - 3.3 Thienemannioyia series - 2.6 Cricotopus sp. 0.2 - Nanocladius sp. 0.2 - Dicrotendipes 1.5 0.7 Polypedilup eonvictus 1.1 2.0 Rheotanytarsus 0.2 1.3 Tanytarsus - 3.9 Culex sp. - 0.7 Simulium - 0.7 Physa s 2.0 - TOTAL MLROINVERTEBRATES 34.4 203.2

D-35 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------SITEzINTAKE ------DATE= 16AU96B TIME: DAY NIGHT LOC.: LOC.: 12 II DEPTH DEPTH TOP TOP REP: REP: 1 I (DEN) (DEN)

SPECIES Planariidae 0.4 - Stylaria lacustris 0.6 4.0 Asellus sp. 0.2 - Hyaelula azteca 0.2 0.0 Hydracarina (acarina) 0.4 0.3 Baetis sp. 0.2 0.4 Centroptilus - 0.1 Callibaetis - 1.0 Pseudocloeon sp. - 0.1 Stenacron sp. 0.2 - Stenonema sp. - 0.1 Tricorythodes sp. 0.2 0.8 Camnis sp. - 0.3 Hexagenia sp. - 2.6 Coenagrionidae 0.2 2.9 Enallaan sp. - 0.3 Aeshnidae 0.2 0.3 Libellulidae - 0.4 Belastosatidae - 0.1 Corixidae - 0.1 Cyrnellus fraternus - 0.1 Hydropsyche phalerata - 0.1 Hydroptila - 0.3 Oxyethira sp. 0.4 1.5 Paraponyx sp. 0.2 - Macronychus glabratus - 0.3 Ceratopogonidae - 0.1 Chaob. punctipennis - 0.3 Tanypus sp. - 0.3 Procladius sp. . 2.2 Coelotanypus sp. - 0.1 Ablabeseyia sp. 0.6 1.1 Larsia sp. 1.7 Thienelanniuyia series - 0.1 Cricotopus sylvestris grp. 0.2 - Chironotus - 0.3 Dicrotendipes - 0.7 Polypedilum sp. 0.2 - Polypedilum convictum 1.7 1.4 Poly•edilum scalaenue - 2.5 Tanytarsus - 0.3 Psychoda 0.2 - Physa sp. 0.9 0.3 6yraulus sp. 0.2 0.4 TOTAL IACROINVERTEBRATES 7.1 28.7

D-36 DATA MACROINVERTEBRATE STATION - 1989 (1/1003) - BRAIDiOOD AT EACH SITE EDISON CONPANY FOR EACH DATE CONNONWEALTH DENSITY OF NACROINVERTBRATES ------SITE=INTAKE ------DATE: 23A1698 TIM.:

DAY NIGHT LOC.: LOC.: It [i DEPTH DEPTH SOT TOP REP: REP: 2 2 (DEN) (DEN)

- 0.1 SPECIES 0.4 0.2 Hydra 0.2 0.4 P anariidae diaphanus 0.2 0.4 Cbaetogaster 0.2 - Dero digitata 0.2 Nais variabilis 3.8 12.7 Pristina 1.7 Stylaria lacustris 1.3 azteca 0.5 Hyalella (acarina) 0.4 0.7 Hydratarina - 0.4 Daetis sp. 0.4 1.0 Centrophlss - 0.8 Callibaetis sp. 0.! Pseudocloeon - 0.1 Stenacron sp. 5.3 Stenonela sp. 0.4 0.5 sp. 2.7 Tricorythodessp. - caenis - 1.0 Helagenia sp. , 0.1 Coenagrionidaeobscura 0.2 1.5 Chimarra up. 0.2 Oxythira 0.2 0.2 araponyx sp, 0.3 Ceratopogon'dae $ . 0.4 Chaod. punctipennis 0.6 Procladius sp. 0.1 Ablabesuyia sp. sp. 0.6 Labrundiniasp. 0.2 Larsia sp. . 0.1 Thieneaannizmya 0.6 Cryptochironoaus 0.3 Dicrotendipes - 0.1 Nicrotendipes - 0.9 Parachironosussp. 1.1 0.8 Polypedilua convictus - 0.1 Polypedilum - 0.6 Stenochironoans 0.2 - Tanytarsus - 0.3 Psychoda 0.2 0.4 Simuliua sp. Physa AS0.1 9.9 32.4 1R•-Rs Ep TOTAaL%6y NACsRO[NVERTEBRATES

D-37 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1989 MACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (111003) ------.------SITE=INTAKE ------.------DATE: 30AUG98 TIME: DAY NIGHT LOC.: LOC.: 13 11 DEPTH DEPTH TOP TOP REP: REP: I I (DEN) (DEN)

SPECIES Hydra - 0.7 P anariidae - 0.2 Nais variabilis - 0.2 Stylaria lacustris 1.6 6.4 Hyalella azteca 0.4 0.8 Hydracarina (acarina) 0.7 1.8 Baetis sp. - 1.2 Centroptilua - 5.8 Callibaetis 1.7 Daetisca sp. - 0.3 Stenacron sp. - 0.2 Tricorythodes sp. 0.3 12.0 Brachycercus sp. - 0.2 Caenis sp. 3.8 Potaganthus sp. - 0.5 Hexagenia Sp. 2.1 Coenagrionidae 0.3 6.8 Corixioae 0.2 Cyrnellus fraternus 0.2 Potafyia flava 0.2 Hydroptia 0.5 ,OxyetiraParaponyx sp.sp, 0.20.8 Pyralidse 0.1 - Ceratopogonidae - 0.5 Chaob. punctipennis - 0.2 Tanypus sp. - 0.3 Prociadius sp. - 1.0 Coelotanypus sp. - 0.3 Ablabesfyua Sp. 0.7 1.7 Larsia sp. 0.7 1.8 Thienemannisyia series - 0.2 Thieneaanniella sp. - 0.2 Cricotopus bicinctus grp. - 0.2 Cryptochironomus - 0.2 Dicrotendipes - 0.2 Polypedilum sp. 0.3 4.0 Polypedilue convictum 0.9 3.0 Rheoxanytarsus - 0.3 Tanytarsus - 0.2 Psychoda 0.1 0.3 Simuliu, 0.2 Stratoeyiidae - 0.2 Physa Sp. 1.2 1.2 6yraulus sp. 0.7 0.2 TOTAL MACROINYERTEBRATES 7.7 66.6

D-38 COMMONMEALTH EDISON CONPANY - BRAIDNOOD STATION - 1985 NACROINVERTEBRATE DATA DENSITY OF RACROINVERIBRATES FOR EACH DATE ATEACH SITE (111043) ------.----...... ------SITEzINTAKE ------DATE: 06SEP88 TIME: DAY NIGHT LOC.: LOC.: 12 13 DEPTH DEPTH TOP TOP REP: REP: I I (DEN) (DEN)

SPECIES Hydra 0.2 - Planariidae 0.7 0.4 Dero digitata 0.9 - Stylaria lacustris 17.6 3.8 Ia. tub. vie cc 0.2 - Hyalella azteca 1.2 1.7 Hydracarina (acarina) 0.9 0.8 Isonychia sp. 0.1 Daetis sp. - 0.3 Centroptilue - 0.1 Callibaetis - 0.3 Pseudocloeon sp. - 0.8 Baetisca sp. - 0.2 H. maculipennis - 0.2 Stenacron sp. 0.1 Stenoneaa sp. - 0.3 Tricorythodes sp. 2.4 1.4 Caenis sp. 0.9 0.2 Pot~aanthus sp. - 0.2 Hexagenia sp. - 1.4 Coenagrionidae 1.7 3.8 Aeshnidae - 0.1 Belastomatidae - 0.1 Trichoitera 0.2 - Cyrnel us fraternus - 0.2 Oxyethira sp. 0.7 0.6 Paraponyx sp. 0.3 0.2 Pyral idae 0.2 0.1 Nacronychus glabratus - 0.1 Procladius sp. - 0.9 Coelotanypus sp. - 0.3 Ablabesayia sp. 0.5 1.3 Labrundinia sp. 0.2 0.1 Larsia sp. 8.3 1.4 Thienemannimyia series - 0.1 Thienetanniella sp. 0.2 0.1 Cricotopus bicinctus grp. 0.2 - Cricotopus sylvestris 9rp. 0.3 Parachironomus - 0.2 Polypedilum sp. 2.1 0.4 Polypedilum convictum 3.3 1.1 Rheotanytarsus 0.5 0.1 Culicidae - 0.2 Psychoda 0.2 0.1 Simulium 0.2 0.3 Physa sp. 8.8 5.1 Syraulus sp. 2.1 0.3 Ferrissia sp. 0.5 0.2 TOTAL MACROINVERTEBRATES 55.2 29.6

D-39 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/10m3) ------...... ------.------SITE:INTAKE ------DATE: 13SEPBB TINE: DAY NIGHT LOC.: LOC.: 12 12 DEPTH DEPTH TOP TOP REP: REP: I I (DEN) (DEN)

SPECIES Planariidae 0.5 0.1 Chaetogaster diaehanus 0.3 - Stylaria lacustris 5.7 2.5 Glossiphonildae 1.1 - Hyalella azteca 0.3 2.3 Hydracarina (acarina) 1.1 0.7 Daetis ap. - 1.6 Callibaetis 0.3 1.2 Pseudocloeon sp. 0.2 2.7 Baetisca sp. - 0.5 Stenoneaa pulchellum - 0.1 Tricorythodes sp. 0.6 6.2 Potaman;Cai s ;s .sp.- 0.3 0.0.9 aen's- 0.1 Hexagenia sp. - 0.4 Coenagrionidae 1.0 3.7 Argia sp. - 0.4 Cheumatopsyche sp. 0.2 - Hydroptila 0.2 - Oxyethira sp. 0.2 1.2 0.2 - PyralidaeParaponyx sp. 0.2 - Peltodytes sp, - 0.1 Tropisternus sp. 0.2 - Procladius sp. - 0.9 Coelotanypus sp. - 0.3 Ablabesmyja sp. 0.6 0.9 Labrundinia sp. 0.6 0.4 Larsia sp. 0.3 5.2 Thieneuanniella sp. 0.3 0.4 Cricotopus bicinctus grp. 0.2 0.4 Chironomus - 0.1 Dicrotendipes - 0.1 Polypedilum up. 0.3 2.0 Polypedilum convictum 2.1 2.8 Rheotanytarsus - 1.1 Tanytarsus - 0.5 Psychoda - 0.1 Siaulium 0.2 0.1 Physa sp. 3.4 2.1 Gyraulus sp. 1.0 0.3 Ferrissia sp. 0.2 - TOTAL MACROINVERTEBRATES 21.7 42.8

D-40 COMMONWEALTHEDISON COMPANY - BRAIDWOOD STATION - 1988 HACROINVERTEBRATE DATA DENSITY OF MACROINYERTBRATES FOR EACH DATE ATEACH SI7E (1100a3) ...... ------SITE=KANKAKEE RIVER ------DATE= 19APROB TIME: DAY NIGHT LOC.: KI K2 K4 K3 DEPTH DEPTH DEPTH DEPTH POT TOP 0OT TOP ROT TOP DOT REP: REP: REP: REP: REP: REP: REP: 2 1 1 2 1 2 1 2 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Nematoda - - 0.1 - - Chaetogaster diaphanus 1.1 0.7 0.2 - 1.0 0.2 Dero sp. ------0.1 - Dero digitata - 0.1 - - - - - Nais bretscheri - , 0.2 Nais elinguis 0.2 - Nais pardalis - 0.2 0.2 Nais variabilis 0.4 ------Ophidonais serpentina 0.7 0.3 0.7 1.0 0.1 - 0.4 Paranais frici 2.6 1.4 3.1 3.9 0.1 0.4 7.2 4.8 3.9 -- 0.2 - - Piguetiella michiganensis - . 0. 0.2 -0.2 Sty aria Iacustris Branchiura soverbyi 0.2 - - - - - Lianodrilus hoffteisteri 0.2 0.1 0.1 0.2 " 0.2 In. tub. w/o cc 0.4 - 0.1 - - 0.2 Enchytracidae - 0.1 0.2 0.1 - Hyalella azteca - 0.1 0.5 Crangonyx sp. 0.2 0.3 - Isonychia sp. 0.2 - 0.2 Baetis sp. 0.2 0.1 Baetisca bajoleovi - 0.2 0.1 0.1 Stenacron sp. 0.4 - - 0.3 0.2- 0.3 Stenonema sp. - 0.3 0.6 0.9 Stenoneaa puIchellum 0.2 - - - . 0.2 Stenonema terminatum 0.3 0.9 0.7 Tricorythodes sp. 1.1 1.1 1.0 0.1 0.2 - 0.4 Caenis sp. S- - - 0.4 Potaffanthus sp. 0.9 0.2 0.1 0.2 Ephemera sp. *- - 0.1 - Hexagenia sp. 1.0 1.3 0.5 loperla sp. 1.1 0.1 0.9 Trichoptera 0.2 0.3 0.4 - 0.4 - - - Polycentropus sp. - 0.1 Hydropsychidae 0.2 0.1 0.4 phalerata Hydropsyche . Hydroptilidae -S 0.2 - 0.2 Hydroptila - 0.2 0.1 0.4 Petrophila sp. 0.2 Dubiraphia sp. - 0.1 - Stenelmis sp. 0.2 0.3 0 Ceratopogonmdae - 0.2 0 0.2 Chaob. punctipennis Ablabesmyia sp. 0.2 - -0.2 0.7 0.4 Thienemannieila sp. - 0.1 - Cricotopus sp. - - 0.1 - Cricotopus bicinctus grp. 0.1 - Orthorladius sp. 0.2 0.2 0.1 0.4 Smittia 0.2 0 Tvetenia discoloripes grp. O.1 0.4 S- - 0.2 Cryptochironomus . 0 - .1 - - 0.2 Nicrotendipes Polypedilus sp. - - o0.1 Polypedilua convictum 0.2 0.1 0.1 0.2 0.1 - 0.3 - - TOTAL MACROINVERTEBRATES 9.4 2.6 7.2 0.0 0.5 1.2 13.0 12.6 11.7

D-41 COMMONNEALTH EDISON CONPANY - BRAIDNOOD STATION - 198B NACROINVERTEDRATE DATA DENSITY OF MACROINVERT8RATES FOR EACH DATE AT EACH SITE (0/10,3) ------SITE=KANKAKEE RIVER ------DATE: 26APR88 TINE: DAY NI6HT LOC.: LOC.: KI K2 K3 Kt K3 K4 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH TOP TOP DOT DOT DOT TOP REP: REP: REP: REP: REP: REP: 1 1 2 2 2 1 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 0.3 0.2 - Chaetogaster diaphanus 0.1 - 0.6 - 0.2 Nais cossunis - . 0.2 0.2 - Nais pardalis - - 0.2 0.2 0.2 Nais variabilis 0.3 - 0.2 - 0.2 Ophidonais serpentina 0.1 0.3 - 0.9 0.7 Paranais frici 1.4 1.7 1.1 3.9 4.2 0.5 Piguetiella michiganensis - 0.2 - - - Slavina appendicuIata - - - 0.2 - Stylaria ]acustris 0.2 0.2 Is., tub. w/o cc 0.2 - 0.2 0.2 Hyalella azteca - - - 0.2 Hydracarina (acarina) - - 0.2 - - Isonychia sp. - - 0.2 - - Stenacron sp. - 0.3 - - Stenonema sp, - - 0.4 0.8 - 0.2 Stenonema terminatus - 1.6 0.3 - Tricorythodes sp. - 0.2 - 0.2 - Caenis sp. - - - 0.2 - - Potamanthus sp. - - - 0.2 0.2 0.2 Hexagenia sp. - - - 0.9 0.2 0.2 Isoperla sp. - - - - 0.2 - Hydropsyche pha0erata - - - 0.2 Potayia flava - - 0.2 Protoptila sp. - 0.2 - - 0.2 - Hydroptila 0.1 - 0.3 Ablabeseyia sp. - 0.2 Thienesannimyua series - 0.2 - Orthocladius sp. 0.1 - 0.2 Chironomus - 0.2 Polypedilum spU 0.1, - Polypedilum convictul - 0.2 0.3 Polypedilus scalaenum 0.1 - - Polypedilum sisulans - 0.2 Unidentified - - 0.2 TOTAL NACROINVERTEBRATES 2.5 2.7 3.4 10.1 8.7 1.6

D-42 COMMONWEALTHEDISON COMPANY - BRAIDNOOD STATION - 1980 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE ATEACH SITE (111003) -----.------...... ------SITEcKANKAKEE RIVER ------DATE: 03MAY88 TINE: DAY NIGHT LOC.: LOC. . KI K2 13 KI 12 13 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH 80T TOP TOP TOP TOP DOT REP: REP: REP: REP: REP: REP: I I 2 1 1 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 0.2 0.2 0.4 Hematoda - - 0.2 - Chaetogaster diaphanus - - - 0.2 Der digitata 0.1 Nais bretscheri 0.2 Nais communis - 0.1 - 0.1 Nais elinguis 0.2 0.1 - Nais pardalis - - - 0.4 Nais variabilis 0.4 0.2 - 0.3 0.7 Ophidonais serpentins - 0.6 - - 0.4 0.2 Paranais frici 0.2 0.3 0.2 0.4 0.7 0.9 Piguetiella michiganensis 0.2 - - - 0.1oI Limnodrilus hoffeeisteri - - - 0.2 - 0.2 Enchytracidae 0.2 - Hyalella azteca - - 0.4 Isonychia sp. 0.1 Baetxsca ba oleovi - 0.1 0.4 Heptagenia ilayescens - - 0.1 - Stenatron sp. - 0.2 0.2 0.3 0.5 Stenonema sp. 0.2 - 5.1 1.3 2.1 Stenonema intergrum - - - 0.2 - - Stenoneia putchellum . 0.6 - Stenonema terminatue - 3.2 0.3 3.0 Ephemerella needhami - - 0.2 Tricorythodes sp. 0.2 - - Camnis sp. 0.2 - 0.2 Pentagenra vittigera - - - 0.2 Potaaanthus sp. 0.2 0.1 - Ephemera sp. - - - 0.2 Hexagenia sp. .I, 0.9 Argia sp. 0.2 - Plecoptera 0.2 0.2 - Perlidae - - 0.1 0.2 Perlesta sp. Isoperla sp. - - - 0.2 1 - Polycentropodidae - - 0.20.2 2 - - Po tasyia flava - - .Hydroptiia 0.2 0.4 - 0.4 0.5 Triaenodes sp. -- - 0.2 Petrophila sp. 0.1 Nacronychus glabratus -S 0.2 0.1 Stenelmis sp. - I.1 1.8 Prorladius sp. - 0.6 2.3 Ablabesayia sp. 0.2 0.1 0.2 Thienemannimyja series - 0.1 - 0.4 0.1 - Thienemanniella Ip. 0.2 0.1 - - Cricotopus sp. 0.2 0.2-O'! 0 Cricotopus trifascia grp. - -- - 0.1 - Orthorladius sp. - - 0.2 - - 0.2 Nanocladius sp. - - - - 0.1 0.2 Harnisthia 0.2 - - - - - Polypedilum convictum 0.6 - - 0.2 0.1 0.2 Polypedilus scalaenum 0.4 - - - - - Stenochironomus 0.2 - - - Paratanytarsus - - 0.1 - Tanytarsus 0.2 - 0.3 - TOTAL NACROINVERTEDRATES 3.9 1.4 1.8 14.7 6.7 15.8

D-43 CONMONWEALTHEDISON COMPANY - BRAIDWOOD STATION - li88 NACROINVERTEBRATE DATA DENSITY OF HACROINVERTBRATES FOR EACH DATE ATEACH SITE (111003) ...... ------SITE:KANKAKEE RIVER ------DATE= 1OAYBB TINE: DAY NIGHT

XI K2 K3 K4 KI K2 K3 K4 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH DOT TOP ROT DOT TOP TOP ROT TOP ROT TOP REP: REP: REP: REP: REP: REP: REP: REP: REP: REP: 1 1 2 I 1 2 1 2 1 2 1 (DEN) (DEN)(DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 0.6 0.3 0.4 -0. 0 0.3 0.3 - 0.2 - Nematoda - - - 0.. - Nais elinguis - - - - - 0.1 * - His pardalis - 0.3 0.4 - - Naa yariabilis - 0.5 0.2 - 0.2 0.3 0.9 0.2 - 0.2 0.4 Ophidonais serpentina 0.8 0.5 0.9 - - 0.1 0.1 0.2 0.4 Paranais frici 0.2 0.2 - - - 2.2 0.8 - 0.3 0.6 0.2 Piguetislla .ichiganensis 0.4 - 0.2 -0.1 0.3 0.5 Stylaria iacustris 0.4 - - - 0.1 - - 0.2 - Vejdovskyella intermedia ------0.2 - Enchytracidae 0.1 0.2 - Hyalella arteca g0.3 - Gammarus sp. - 0. 1 0.2 - - Isonychia sp. 0.2 - 0.4 0.2 - 0.2 Pseudocloeon sp. - - 0.6 - 0.2 0.4 0.6 Baetisca bajoleovi - 0.1 0.2 - Heptagenia sp. - - 0.2 Pseudiron sp. 0.4 0.3 0.3 0.2 . 0.2 Stenacron sp. 0.2 0.3 0.1 0.3 - 0.4 - Stenonema sp. 5.9 0.3 1.3 - 0.2 Stenonema ulchellum - 0.j - - 0.2 - Stenonema:emainatum 1.1 0.1 1.0 1.4 - 1.1 0.2 Ephemerel a needhami - 0.2 - - - - - Tricorythodes sp. 0.2 - Caenis sp Potamantgus sp. - 0.2 - - 0.2 0.1 0.1 - Hexagenia sp. - - - 0.2 0.4 0.4 0.3 0.2 0.4 0.4 Coenagrionidae - - - 0.1 Plecoptera - 0.2 - - 0.2 Corixidae - 0.1 - - Trichoptera :0.2 : Hydropsyche phalerata 0.1. Protoptila sp. - 0.3 - Hydroptila 0.4- 0.1--- - Peltodytes sp. - 0.2 Nacronychus glabratus 0.4 o.1 : 0 .2 Steneimis sp, 3.0 0.7 0.6 - 0.2 Chaob. punctipennis 0.3 - Procladius sp. 0.2 0.1 - 0.2 Ablabesiyia sp e 0.1 - 0.2 0.2 Thienemanniia series - 0.2 - 0.3 0.2 Cricotopus sp. - - - 0.1 - - Cricotopus bicinctus grp. 0.2 -- - - - 0.2 0.2 0.2 Cricotopus trifascia grp. 0.2 Orthorladius sp. - - 0.2 - 0.4 - Nanocladies ap. - . -0.4. Parakrefferiula 0.2 - 0.2 0.1 - Chironomus 0.1 Cryptochironoruu 0.2 - - - - 0.2 - Polypedilum sp. - - 0.2 - 0.3 0.2 0.2 Polypedilua convictum 0.2 " " 0.1 " 0.6 Paratanytarsus 0.3 - 0.1 Rheotanytarsus 0.5 1.2 0.2 0.4 0.7 0.9 0.5 0.9 0.7 Sioulium - - 0.2 - - 0.2 TOTAL HACROINVERTEBRATES 2.7 3.2 4.5 0.4 14.2 7.3 9.8 5.6 2.4 7.0 2.6

D-44 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1003) ------...... ------SITE:KANKAKEE RIVER ------DATE: 17MAY8B TIME: DAY NIGHT LOC.: LOC.: KI K2 K4 K2 K3 K4 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH DOT DOT TOP DOT DOT TOP REP: REP: REP: REP: REP: REP: 2 2 1 2 2 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 0.4 0.2 0.6 0.3 - Dero digitata 0.2 - - Nais communis 0.4 - -- - Nais elinguis 0.2 0.3 -03 - Nais pardalis 0.2 0.2 0.2 - - 0.7 Nais variabilis 1.0 0.9 0.2 0.2 1.8 0.3 Ophidonais serpentina 0.2 - - 0.5 0.2 - - - - 0.5 SlavinaParanais appendiculatafrici 0.2 0.3 Stylaria lacustris - - - - - 0.1 0.2 0.5 - - 0.2 0.1 Enchytracidae - - 0.2 - - - Isonychia sp. - - 0.4 Daetss sp. - 1.8 0.6 Pseudocloeon sp. 0.2 0.2 - - 15.8 0.1 Heptageniidae 0.2 0.3 0.2 1.0 1.8 1.2 seudiron sp. - - 0.2 0.2 0.1 Stenacron sp. - 0.4 - Stenonema sp. - 0.2 1.4 0.1 Stenonema terminatum - 0.3 1.4 - - TricorythodesCamns sp. sp. 0.5 0.4 - 0.2 - Potalanthus sp. - 0.2 - Ephemeridae 0.2 0.3 0.4 - 0.4 - Hexagenia sp. - 0.6 0.4 0.1 Argia sp. - - 0.2 Plecoptera - 0.2 Macronychus glabratus - 0.3 0.6 - Stenelmis sp. - 0.3 0.6 - Procladius sp. - 0.3 1.0 Ablabesayia sp. 0.4 - 0.3 0.2 0.1 Thienemanni:yia series - - 0.2 - - Thienesannie 1a sp. - 0.2 - Cricotopus sp. - 0.5 - - - - Cricotopus bicinctus grp. 1.0 0.2 0.9 0.5 2.2 - Cricotopus trifascia grp. 0.4 - - 0.2 - - Cricotopus sylvestris grp. - 0.2 - - Orthocladius sp. - 0.4 - - Nanocladius sp. 0.7 0.8 2.1 2.4 0.1 Parakrefferiella 0.2 - - 0.4 0.1 - 0.2 Dicrotendipes - 0.5 Polypedilum sp. 0.2 - 0.7 Polypedilum convictum - 0.2 - - - Paratanytarsus - - - 0.2 - Rheotanytarsus 0.4 0.3 0.8 3.5 2.2 0.9 Psychoda - - - - - 0.1 TOTAL MACROINVERTEBRATES 5.5 4.9 4.8 12.9 37.9 6.1

D-45 COMMONWEALTHEDISON COMPANY - BRAIDNOOD STATION - 19B9MACROINVERTERRATE DATA DENSITY OFMACROINVERTBRATES FOR EACH DATE AT EACHSITE (1/10i3) -.---.--.-.------...... ------SITE=KANKAKEE RIVER ------DATE: 24MAY88 TIME: DAY NIGHT LOC.: LOC.: KI K4 KI K2 DEPTH DEPTH DEPTH DEPTH DOT TOP GOT TOP DOT REP: REP: REP: REP: REP: 1 2 1 2 1 I (DEN)(DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 1.5 2.7 0.9 2.5 3.6 4.9 Nematoda - - - - - 0.1 Chaetogaster diaphanus 0.2 0.2 - 0.2 - Dero digitata - -- - 0.1 - Nais elingaiq - - 0.2 - Nais pardalis 0.2 0.2 - 0.5 0.1 Nais variabilis 0.4 0.4 0.3 0.9 1.4 0.8 Ophidonais serpentina 3."2 1.4 0.5 Paranais frici -3.2 2.6 1.1 Piguetiella *ichiganensis - 0.1 0.1 Stylaria laustris 0.2 0.6 - 0.5 0.2 0.1 Vejdovskyella intermedia - 0.2 0.2 . - Hyalella azteca - - 0.1 Gamearus sp. 0.1 Astacidae 0.2 0.2 0.3 Hydracarina (acarina) - - - - - 0.1 Isonychia sp. 1.8 1.0 1.4 Bastis sp. 1.0 27.1 9.6 19.9 Centroptilum - 0.2 - 15.2 3.0 1.6 Callibaetis 0.4 - - 9.5 6.2 5.7 Pseudocloeon sp. 0.2 0.6 0.9 23.3 5.7 11.2 H. eaculipennis - - - 13.0 9.6 17.6 Heptagenia sp. 0.2 - 0.9 - 0. - Stenacron sp. -- - 0.2 1 - Stenonema sp. Tricorythodes sp. 0.2 0.2 Brachycercus sp. 2.1 0.2 - - PotamanthusCaenS Sp. sp. - 0.4 - 0.9 - 0.1 Hexagenia sp. 0.3 0.5 - 0.4 Ephoron sp. 0.4 0.4 - 3.5 3.6 3.4 Goaphidae - 0.2 Corixidae 0.2 0.4 0.4 Macronychus glabratus - 0.4 0.4 - Stenelmis sp. - 0.4 - 0.4 Procladius sp. - 3.2 0.2 1.1 Coelotanypus sp. - 0.2 0.2 0.1 Ablabessya sp. 1.6 1.1 1.1 Thienemannimyiaji se~ries - - 0.2 - 0.1 Thien ne Ia p. Cricotopus sp. 1.1 0.4 0.5 2.2 1.1 Cricotopus Itrluls grp. 0.6 - -.0 i Cricotopus bicinctus grp. - - 0.1 0.4 Cricotopus trifascia grp. 0.1 Cricotopus sylvestris grp. - 0.2 0.4 Orthocladius sp. - 0.4 - 0.1 Nanocladius s. 1.3 0.2 0.3 1.2 1.7 1.2 Pardkre fferiell 0.2 0.1 Tvetenia discoloripes grp. - - ,-I. Chironcmus 0.7 0.1 0.3 Cryptochironomus 0.2 - O. - . 0.1 Cryptotendipes - 0.9 - Harnischia * - - - 0.1 - Parachironomus - 02 - 0.2 - Polypedilum sp. 0.2 - - 0.5 0.1 0.2 Polypedilum convictlu 0.2 0.2 - 0.5 0.6 0.4 Rheotanytarsus 0.2 - - 1.1 - 0.5 Tanytarsms - - - - 1.0 0.4 Psychoda - 0.2 - Sisulium ,- 0.1- 0.1- Physidae TOTALMACROINVERTEBRATES 8.1 7.0 5.4 114.9 57.6 78.4

D-46 COMMONWEALTH EDISON COMPANY- DRAIDWOOD STATION - 1908 MACROINVERTEBRATEDATA DENSITY OF MACROINVERTDRATESFOREACH DATE AT EACH SITE (U11003) ------..------...... ------SITE4KANKAKEE RIVER ------

DATE'31MAY88

TINE: DAY NIGHT LOC.: LOC.I KI K4 K3 DEPTH DEPTH DEPTH TOP BOT TOP TOP REP: REP: REP: REP: 1 2 1 I 2 (DEN)(DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 0.6 2.4 0.6 0.3 0.6 C aetogaster diaphanus 0.1 - Nais pardalis 0.1 Mais variabilis 1.4 Ophidonais serpentina 0.3 Paranais frici - 0.1 - - Piguetiella michiganensis t 0.2 - 0.4 S ylaria lacustris - 0.1 Ast acidae 0.1 - Isonychia sp. 4.2 1,.9 Baetis sp. 7.2 0.4 1.0 1.5 Centroptilum 0.2 10.0 0.2 0.2 3.1 Callibaetis 0.3 7.3 0.2 1.3 Pseqdocloeon sp. 0.3 3.8 2.0 1.5 H. matulipennis 0.6 24.5 2.5 B.1 Stenacron sp. - 0.1 0.3 Stenonema sp. 1.1 Stenoneia terminatum 0.3 TTitorythodeS Sp. - 0.4 - 0.1 Brachycercus sp. 1.2 0.2 1.0 s.* PotaCaenis ant ;s sp. - 0.7 - 0.1 2.2 - 0.4 Hexagenia sp. 0.9 - Ephoron sp. 0.6 35.7 0.8 5.8 Perlidae 0.1 - - Corixidae 0.5 - 0.8 Cheumatopsyche sp. 0.1 - -- SyHydropsyche phtopsyche pgalerata sp. 0.4 0.1 Neycsopsyche sp. 0.1 - 0.1 Macronychus g abratus 0.4 0.1 Stenelis sp. 0.7 0.2 0.3 Procladius sp. 4.5 - 8.3 Coelotanypus sp. 0.1 Ablabesmyia sp. 0.2 2.6 0.9 Labrundinia sp. 0.1 - - -- Thieaemanni:yiaLarsia sp. seriess 0.2 0.1 - - - 0.2 0.4 0.4 Thienesannie la ip. - 0.3 - Cricotopus sp, 0.5 0.3 Cricotopus tremulus grp. - 0.1 -- - Cricotopus bicinctus grp. 0.3 - Cricotopus trifascia grp. 0.5 0.2 0.2 Manocladiussp. 0.5 0.1 Rheocricotopus 0.1 -- - Ivetenia discoloripes grp. ,0.1 Chironosus 0.7 0.1 Cryptochironoaus 0.3 Cryptotendipes 0.1 Dicrotendipes 0.1 Harniscbia 0.4 Parachironomus 03 Paracladopelma 0.4 - Polypedilum sp. 1.1 0.1 Pol ypedilum convictum 0.2 2.8 0.4 Tribelos 0.1 Paratanytarsus 0.1 Rheotanytarsus 1.1 Tanytarsus 0.4 0.3 laurelia - - - 0.1 Physa sp. 0.8 -- - 6yra'lIus sp. 0.1 TOTALMACROINVERTEBRATES 3.4 125.4 2.2 7.2 39.6

D-47 CONNONUEALTH EDISON CONPANY - BRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF HACROINVERTDRATES FOR EACH DATE AT EACH SITE (l/1003) --- ..------...... ------SITE:KANKAKEE RIVER ------DATE= 07JUN88 TINE: DAY NIGHT LOC.: LOC.: KI K3 K4 Ki K3 K4 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH DOT TOP TOP TOP TOP TOP REP: REP: REP: REP: REP: REP: I 2 I 1 2 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra 0.9 0.2 0.2 0.1 Naididae - - 0.1 Nais variabilis 0.2 Vejdovskyella intereedia 0.2 Hyalella azteca 0.2 0.1 Hydracarina (acarina) 0.2 0.9 Isonycbia sp. - 1.9 8.4 3.0 Baetis sp. 0.4 0.3 2.5 0.5 Centroptilum 0.4 0.6 0.4 0.5 Callibaetis . 0.2 - 0.7 Pseudocloeon sp. 0.2 0.2 0.6 0.7 0.9 Heptageniidae 0.2 H. maculipennis 0.3 0.9 2.7 0.1 3.9 Stenacron sp. - 0.1 Stenonema sr. 0.2 - 0.3 0.1 0.2 Stenonela intergrum 0.7 Stenonema terminatum - - 4.1 0.4 Tricorythodes sp. 0.2 0.2 1.6 1.7 2.1 Drachycercus sp. - 0.8 2.0 0.4 Caenis sp. 0.2 0.5 1.1 1.3 Potasanthus sp. 0.2 0.2 - 0.2 - 0.4 Helagenia sp. - 0.2 0.4 0.2 Ephoron sp. 0.2 0.5 5.5 13.5 11.6 Coenagrionidae 0.2 Corixidae 0.2 0.2 1.4 1.1 2.3 Cheueatopsyche sp. - 0.1 Hydropsyche phalerata 0.5 1.6 2.2 1.1 Hydroptila 0.3 - 0.20.2 Nacronychus glabratus - 0.2 0.4 Stenelsis sp. - 0.2 0.1 Procladius sp. 0.5 0.9 0.9 1.1 Coelotanypus sp. 0.2 Ablabesmyia sp. - 0.6 1.4 1.8 Larsia sp. 0.2 0.2 0.6 Thienemannimyia series 0.4 0.2 0 0.2 - 0.4 Cricotopus sp. 0.1 0.4 Cricotopus sylvestris grp. 0.2 Nanocladius sp. -0.2 0.2 Chirofonus - 0.2 0.2 Cryptotendipes Dicrotendipes - l0.1 Harnischia 0.7 0.2 Polypedilum convictue - - 0.1 0.4 Rheot anytarsus 0.2 0.2 0.2 0.2 0.4 TOTALPhysa NAC-ROINVERTEBRlATES - 0.2 - 3.1 2.0 4.3 21.5 43.7 36.3

D-48 COMMONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 MACROINVERTEBDRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1043) ------SITE=KANKAKEE RIVER ------DATE: 14JUNO8 TIME: DAY NIGHT LOC.: LOC.: KI K2 K3 KI K2 K3 DEPTH DEPTH DEPTH DEPTH DEPTH DEPTH DOT DOT TOP DOT TOP DOT REP: REP: REP: REP: REP: REP: 2 2 1 1 2 1 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Stylaria lacustris - - 0.2 Hyalella azteca - 0.1 - - Hydracarina (acarina) - 0.3 - 0.2 Isonychia sp. .-0 1.0 4.2 Baetis sp. - 2.7 0.2 0.2 Centroptilum - 0.5 - 0.2 Callibaetis - 1.5 0.2 Pseudocloeon sp. -0.4 - 4.9 0.5 3.3 H. maculipennis 0.3 - 0.1 22.0 2.6 10.9 Heptagenia flavescens -0.1 - - Stenacron sp. - 0.3 0.2 0.2 Stenonema sp. 7.2 0.8 6.0 Stenonema intergrus - 0.7 0.1 0.4 Stenonema terminates - 2.7 0.2 0.9 Tricorythodes sp. 0.2 - 5.5 2.1 8.4 Brachycercus sp. - - - 1.1 0.3 0.2 Caenis s. 0.5 0.2 2B.1 8.5 27.9 PotagantUs sp. - 1.5 0.1 0.4 Hexagenia sp. - - 1.1 - 0.7 Ephoron sp. 0.2 10.4 0.8 5.4 6omphidae - 0.1 - - Corixidae - 7.6 0.7 3.2 Climacia sp. - 0.1 - - Cheumatopsyche sp. - 0.4 - 0.5 Hydropsyche phalerata 0.1 2.7 0.3 3.5 Protoptila sp. - 0.1 - - Hydroptila 0.2 - 0.1 - - Dubiraphia sp. -O- - 0.1 - 0.2 Racronychus glabratus - 0.7 - 0.2 Stenelsis sp. 0.2 2.3 0.1 - Procladius sp. - 5.3 7.9 9.7 Ablabesmyia sp. - 2.2 - 0.4 Labrundinia sp. - 0.5 - - Larsia sp. - 0.2 Thienemannimyia series - 0.5 - 0.2 Cricotopus sp. - 0.1 - - Cricotopus bicinctus grp. 0.2 - - - - Cricotopus sylvestris grp. - - - 0.1 - - Nanocladius sp. - 0.3 - - Chironomes - 0.1 Cryptochironomus - - 0.2 Dicrotendipes - - 0.2 Harnischia - - 0.4 Parachironosus 0.1- 0.4 Polypedilum convictum 0.2 0.2 0.1 0.1 - 0.2 Rheotanytarsus 0.3 - - Psychoda - - - - - 0.2 SiuUlium - - - 0.1 - 0.2 TOTAL MACROINVERTEBRATES 1.5 0.5 0.8 123.5 26.8 99.2

D-49 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (1/1003) ----.-- ...-...... ------SITEKANKAKEE RIVER ------DATE= 21JUN8B TINE: DAY NIGHT LOC.: LOC.: K3 K2 K3 DEPTH DEPTH DEPTH TOP DOT TOP DOT DOT REP: REP: REP: REP: REP: 1 2 2 I I I (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Planariidae - 0.2 Ophidonais serpentina Hyalella azteca - 0.2 Hydracarina (acarina) 0.1 - 0.2 0.4 - Isonychia sp. - - - 0.9 1.8 0.4 Baetis sp. - - 1.5 1.4 - Centroptilum - - - 1.5 1.1 0.5 Callibaetis - - - 1.3 3.6 0.5 Pseudocloeon sp. - - - 1.5 4.7 - H. eaculipennis - - - 2.8 4.0 - Stenacron sp. - - - 0.6 1.1 0.4 Stenonema sp, 0.1 - 0.1 3.1 9.0 0.7 Stenonema intergrum - - - 0.2 - - Tricorythodes sp. 0.1 - 0.3 5.4 2.4 - Drachycercus sp. - - - 0.4 0.5 - Caenis sp. 1.0 0.7 0.6 27.7 14.5 0.7 Hexagenia sp. 0.1 - - 0.7 0.4 - Ephoron sp. - - - 1.1 0.2 0.4 Coenagrionidie - 0.2 - 6orph idae - 0.4 - - Corixidae - - - 4.3 15.7 8.4 Polycentropus sp. - - - 0.2 - - Hydropsyche phalerata 0.1 - - 1.1 - Hydroptila - - - 2 0.2 Oecetis sp. 0 .2 0. 2 Steneliis sp. 0. - -- - 0.2 2 - Procladius sp. - - - 2.2 - - Ablabesayia sp. 05-0. 20 Labrundinia sp. - 0.2 - Larsia sp. 0.1 - 0 - Thienemannipyja series - 0.4 0.2 - Cricotopus sp. - 0.4 - Cricotopus sylvestris grp. -0.2 Nanocladius sp. .0.4 02 02- Harnischia - -0.40.2 0.2 0.2- Parachironomas - Polypedilum sp. 0.4 0.7 Polypedilum convictum 0.4 0.4 - Sil iidae - 0.2 - - Simulium 0.4 - PleJroceridae 0.4 - - TOTAL MACRO[NVERTEDRATES 2.3 0.7 1.3 60.3 63.5 13.0

D-50 COMMONWEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 MACROINVERTEDRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (0t1003) ------.------SITE=KANKAKEE RIVER ------DATEz 29JUN89 TIME: DAY NIGHT LOC.: LOC.: K2 K3 KI [2 DEPTH DEPTH DEPTH DEPTH DOT TOP TOP TOP DOT REP: REP: REP: REP: REP: 2 2 2 1 1 (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES No Organisms Found - 0.0 - - - Hydracarina (acarina) - - 0.4 0.1 0.2 Isonychia sp. - - 0.6 0.1 1.2 Baetis sp. - - 0.2 Centroptilue - 1.4 0.7 0.7 Callibaetis - 0.6 1.3 2.9 Pseudocloeon sp. - 1.0 - 0.5 H. maculipennis - 0.4 - 0.7 Stenacron sp. - 0.9 - 0.7 Stenonesa sp. - 1.6 0.1 4.3 Tricorythodes sp. - 0.4 0.3 0.7 Caenis sp. 0.3 - .4 0.8 6.6 Hexagenia sp. - - 0.4 - 0.7 Ephoron sp. - - 0.4 0.2 Coenagrionidae - - 0.1 - - Corixidae - - 6.4 2.9 9.3 Polycentropus sp. - - - 0.2 0.7 Hydropsyche phalerata - - 0.1 - - Potamyia flava - - - - 0.2 Hydroptila - - 0.1 - - Macronychus glabratus - - - 0.1 0.2 Stenelais sp. - - 0.1 - 0.2 Procladius sp. - - 0.3 - 0.2 Ablabesmyia sp. - - 0.1 - 0.5 Larsia p 0.1 Thienemannimyia series 0.! - Cryptochironomus - - 0.1 - 0.2 Parachironomus - - 0.1 - - Polypedilue sp. - - 0.4 - 0.9 Polypedilum convictu. - - - - 0.2 TOTAL MACROINVERTEDRATES 0.3 0.0 22.9 6.7 31.0

D-51 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 NACROINVERTEDRATE DATA DENSITY OF HACROINVERTDRATES FOR EACH DATE AT EACH SITE (1/1003) --.- ..------...... ------SITE=KANKAKEE RIVER ------DATE= 05JULO8 TIME: DAY NIGHT LOC.: LOC.: [I K2 K2 DEPTH DEPTH DEPTH TOP TOP ROT TOP REP: REP: REP: REP: 2 2 1 1 2 (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Stylaria lacustris - 0.8 0.3 Hydracarina (acarina) - - 0.5 Baetis sp. - - 0.2 Centroptilo. - - 0.7 Callibaetis - - 0.3 Heptageniidae - 0.2 - Stenacron sp. - - - - 0.2 Stenonema sp, - - - - 1.1 Tricorythodes sp. - 0.1 - 0.2 3.4 Caenis sp. 0.2 0.1 0.2 0.5 7.4 Hexagenia sp. - 0.2 0.5 Coenaorionidie - 0.2 Corixidae - - 0.7 Polycentropus sp. - 0.2, - - Hydropsyche phalerata - - - 0.2 0.7 Petrophila sp. - - - 0.2 Stenelmis sp. - - 0.2 Coelotanypus sp. - - 0.2 Ablabesayia sp. - 0.2 - Thienemannixmya series - 0.2 - 0.3 Cricotopus sp. 0.2 - - Cricotopus tremeius grp. - 0.7 Cricotopus bicinctus grp. - - 0.2 Cricotopus sylvestris grp. 0.5 Dicrotendipes - - 0.2 Polypedilum convictu. 0.2 - 0.2 0.3 Rheotanytarsus - - 1.1 0.3 Pleurocera sp. - 0.3 Goniobasis sp. - 0.2 Physaip. - 1.1 TOMAL CROINVERTEBRATES 0.5 0.3 0.5 3.4 20.7

D-52 COMNONWEALTH EDISON COMPANY - DRAIDWOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF MACROINVERTDRATES FOR EACH DATE AT EACH SITE (1/1003) ------...... ------SITE=KANKAKEE RIVER ------DATE= 12JUL88 TINE: DAY NIGHT LOC.: LOC.: K2 K2 DEPTH DEPTH TOP TOP REP: REP: 1 2 1 2 (DEN) (DEN) (DEN) (DEN)

SPECIES Stylaria lacustris 0.2 - - - Hyalella azteca - 0.1 - Daetis sp. - - 0.1 - Centroptilun - - 0.3 0.4 Callibaetis - - 0.3 0.4 Stenacron sp. - - 0.1 Tricorythodes sp. - - 0.1 - Caenis sp. 0.5 0.2 0.4 0.3 Hexagenia sp- - 0.3 0.4 Ephoron sp. - 0.1 Corixidae - - 0.1 0.6 Stenelis sp. - 0.2 - Procladius sp. - - - 0.1 Labrundinia sp. . 0.1 - Thieneeanniayia series . 0.2 - 0.1 Cricotopus sylvestris grp. - 0.2 - - Nanocladius sp. - 0.1 - Polypedilsp. - - 0.1 - TOTAL NACROINVERTEBRATES 0.6 0.6 2.1 2.6

D-53 CONNONNEALTH EDISON COMPANY - BRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF HACROINVERTBRATES FOR EACH DATE AT EACH SITE (Q/1003) ---.-----...... ------SITE=KANKAKEE RIVER ------DATE= 19JUL99 TIME: DAY NIGHT LOC.: LOC.: K2 K3 K2 K3 DEPTH DEPTH DEPTH DEPTH TOP TOP TOP TOP REP: REP: REP: REP: ! 2 1 1 1 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES No Organisms Found 0.0 - - - Stylaria Lactistris - 0.2 - 0.5 Hyalella azteca - - 0.2 Hydracarina (acarina) 0.2 - 0.6 Isonychia sp. - 0.2 1.3 Baetis sp. 1.4 - 0.5 0.2 8.7 Centropi um - - 0.3 - 0.9 Callibaetis 0.2 - 0.3 0.5 3.0 Pseudocloeon sp. - - - - 0.9 H. maculipennis -S 0.5 Stenacron sp. -- - 0.6 Stenonema sp. 0.3 - - 0.2 4.1 Tricorythodes sp. - 0.2 - 0.3 0.5 9.5 Srachycercus sp. 0.3 0.2 0.2 0.2 10.9 Caenis sp. 0.9 0.2 0.5 0.2 16.1 Pota us sp. - - - 0.2 Hexagenia sp. 3.8 - 0.5 0.2 19.5 Coenagrionidae - - 0.2 - 0.9 Corixidae 0.2 - - 0.2 1.1 Polycentropus sp. 0.2 - - 0.2 0.2 Oxyethira sp. - - - 0.2 Nacronychus glabratus 0.2 - - - Procladius sp. - - - 1.3 Ablabesayia sp. 0.2 1.1 Labrundinia sp. - 0.3 0.2 1.1 Larsia sp. - 0.2 0.2 Thieneaannimyia series - - 0.2 - - Thienemanniayia sp. - - 0.2 Cricotopus sylvestris grp. - --- - 0.2 - - Chironomus 0.3 Demicryptochironomus - 0.2 - - 0 Cryptochironolus - - 0.2 0.2 Dicrotendipes - - 0.3 Parachironoaus - -0.2 - - - Polypedilun convictum - 0.3- Rheotanytarsus -0.2 Tanytarsus - - - 0.5 Simulium - 0.3 TOTAL NACROINVERTEBRATES 0.0 7.4 0.5 4.5 2.9 84.3

D-54 CONINONEALTH EDISON CONPANY - DRAIDNOOD STATION - 1988 MACROINVERTEBRATE DATA DENSITY OF "ACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/1083) ------SITE=KANKAKEE RIVER ------DATE= 26JUL88 TINE: DAY NIGHT LOC.: LOC.: K2 K2 K3 DEPTH DEPTH DEPTH TOP TOP BOT TOP REP: REP: REP: REP: 1 2 2 1 2 (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Planariidae - 0.2 - Hyalella azteca - 0.2 0.1 Hydracarina (acarina) 0.2 - 0.5 1.0 0.9 Isonychia sp. - - 1.0 0.3 Baetxs sp. - - 0.9 3.3 1.0 Centroptilum - - 0.2 0.9 0.9 Callibaetis - - 0.9 4.9 5.1 Pseudocloeon sp. - - 0.2 2.1 Heptageniidae - - - 0.1 H.maculipennis - - - - 0.4 Stenacron sp. - - - 1.2 - Stenoneea sp. - . 2.0 4.7 - Tricorythodes sp. - - 2.0 3.7 0.4 Brachycercus sp. - - 0.6 1.9 1.3 Caenis sp. 0.2 - 5.1 5.7 0.9 Potamanthus sp. - - 0.2 1.6 - Hexagenia sp. 0.2 - 8.1 63.2 2.9 Coenagrionidae - 2.2 1.6 0.7 Argia sp. - - 0.5 - Li ellulidae - 0.1 Corixidae - 5.4 0.4 -0.1- OxyethirXydroptilidae a -.0.2 2 - Nectopsyches p. 0.2 ineutus sp. - 0.3 0.2 - Stenelais sp. - - 0.5 0.2 - Chaob. punctipenni - - - - 0.1 Procladius sp. 1.1 -1. Coelotanypus sp. - 1.0 - Ablabesuyta sp. 2.3 9.4 1.5 Labrundinia sp. - 29.3 0.1 Larsia sp. 3.0 - 1.7 Thienesannimyia series 0.3 0.2 1.0 - Tbienesanniayia sp. - 0.2 - - Cbironomus - 0.5 - Cryptochironomms 0.2 2.1 - Cryptotendipes - 1.0 0.1 Dicrotendipes - 0.5 0.9 Parachironomus - - 0.1 Polypedilum sp. - - 0.8 - 0.9 Polypedilue convictum 0.3 - - - 0.6 Rheotanytarsus - - 0.6 4.7 0.3 Tanytarsus - - 0.9 3.7 1.6 Culicidae - 0.1 - - 0.1 Sioulium - - . 0.5 - Phys - 0.1 - 0.2 0.3 Corbicula fluminea - - - 1.4 - TOTAL NACROINVERTEBRATES 0.9 0.5 32.9 158.9 24.3

D-55 CONNDNNEALTH EDISON CONPANY - BRAIDNOOD STATION - 1989 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTDRATES FOR EACH DATE AT EACH SITE (1/1003) ...... ------SITE=KANKAKEE RIVER ------DATE: 09AU608 TINE; DAY LOC.: K2 DEPTH TOP REP: ( (DEN)

SPECIES Tricorythodes sp. 0.3 Coenagrionidae 0.5 Enallagma sp. 0.2 Dineutus sp. 0.2 Tanytarsus 0.2 Physa sp. 0.8 Planorbidae 0.3 TOTAL NACROINVERTEDRATES 2.3

D-56 COMMONWEALTHEDISON CONPANY - BRAIDNOOD STATION - 1908 HACROINVERTEBRATE DATA DENSITY OF MACIOINVERTDRATES FOREACH DATE AT EACH SITE (0/1003) ---.------.-----...... ------SITE4KANKAKEE RIVER ------DATE-16AUG98 TIME: DAY NIGHT LOC.: LOC.: K2 K3 K2 K3 DEPTH DEPTH DEPTH DEPTH TOP TOP BOT TOP DOT TOP DOT REP: REP: REP: REP: REP: REP: REP: 1 2 I 2 2 1 2 2 1 2 1 (DEN)(DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES No Organisms Found 0.- - 0.0 -. - Hydra - 0.3 . 0.2 - -0. P1anariidae 0.1 0.2 - . 0.2 0.2 0.4 0.5 1.1 Chaetogaster diaphanus - - 0.3 ------Dero digit ata - 0.2 - 0.2 - - Nais variabilis - 0.1 - - - . - - - - Pristina leidyi 0.1 0.3 - - - Stylaria lacustris 0.1 - 11.2 7.0 0.4 1.7 0.4 - 6.2 0.6 Gloss phonildae ------0.1 - HyalelIa azteca 0.3 0.2 0.3 1.4 1.3 2.0 0.5 2.6 0.3 NHydracarina (acarina) - - - - 0.6 0.5 - 0.4 0.4 lsonychia sp. 0.2 - 0.1 0.3 DaetUs sp. 0.1 0.4 0.5 - 0.5 0.1 Centroptilum 0,"4 0.2 - 0.2 - Callibaetis 0.1 0.1 0.4 1.0 0.4 - 0.3 1.0 Pseudocloeon sp. - - - 0.2 0.5 - 0.1 - Stenonema sp. ,o- 0.2 0.2 - 0.1 - Tricorythodes sp. 0.3 0.8 0.4 1.3 0.5 3.7 - Caenis sp. 0.1 0.6 1.0 0.5 - 1.8 0.4 Potamanthus sp. - - 0.6 0.5 - 1.6 - Hexagenia sp. - 0.2 3.7 8.89 6.7 0.6. Coenagrionidae 0.2 0.7 0.8 0.3 0.6 1.5 0.9 0.2 3.1 0.7 Argia sp. S------0.2 Enal Iana sp. 0.4 - 0.1 Aeshnidae -- 0.2 0.2 0.1 Belastomatidae - - 0. Trichoptera - 0.2 - Hydropsychidae - -0.1 Hydropsyche sp. - 0.2 - Hydroptiiidae - - - - 0.2 - - - - OxIyethiraIydroptila sp. - 0.3 - - - 0.5 0.1 0.4 0.7 - Nectopsyche sp. - - - 0.1 Oncetis sp. - 0.1 Paraponyx sp. 0.1 0.2 0.2 - - 0.8 Dineutus sp. - 0.2 - 0.3 Nacronychus glabratus 0.2 - - - - Stenelais sp. 0.2 0.5 Ceratopogonidae 04- ,8 0.2 - Chiob. punctipennis 0.4 0.9 - 0.1 1.3 Procladius sp. - 0.4 1.3 0.5 Ablabesuyja sp. - 0.1 0.2 4.4 2.3 0.5 1.2 2.9 Labrundinia sp. 0.2 - - 1.3 0.2 - 0.1 0.1 larsia sp. - 0.2 1.0 0.2 - 1.5 0.7 Thienemannimyia series - - - - 0.1 Thienemanniýyia sp. 0.1 Thieneuannie Ia sp. 0.2 - 0.4 Cricotopus sp. Cricotopus bicinctus grp. 0.4 -0.1 Cricotopus sylvestris grp. 0.2 0.2 0.1 Chironomus - - - 0.2 - Cryptochironosus - - 0.2 - 0.1 Dicrotendipes 0.2 0.1 - 0.2 2.3 0.2 - 0.3 1.3 Parachironomus - - - 0.2 0.2 - - 0.1 Polypedilum sp. ------0.3 0.1 Polypedilum €onvictum 0.3 - - Rheotanytarsus 1.0 0.2 2.7 0.5 6.3 0.1 0- 1 0.3 - 1.2 0.4 - - 1.0 0.1 Tanytarsus 0.9 - 0.2 - 0.1 Culicidae .-- .0.1 - Psychoda - -- - - 02 - - - 0.1 Simuliul 0.1 - - * - Pleurocera sp. 0.2 ------Physa sp. 0.1 0.2 1.7 0.5 - - 1.5 0.4 0.2 4.2 - Gyraulus sp. - 0.1 0.3 - - 1.0 0.1 Ferrissua Sp. 05 -0.2 .- 0 8 2 2 2 4 TOTALNACROINVERTEDRATES 0.5 3.2 17.3 9.0 0.0 9.9 29.6 24.4 2.6 49.5 12.0

D-57 CONNONUEALTH EDISON CONPANY - BRAIDNOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF NACROINVERTBRATES FOR EACH DATE AT EACH SITE (0/l003) ----- ..---.-...... ------SITE4KANKAKEE RIVER ------DATE= 23AUG89 TINE: DAY NIGHT LOC.: LOC.: 12 K3 K2 K3 DEPTH DEPTH DEPTH DEPTH TOP TOP TOP DOT REP: REP: REP: REP: 2 1 2 I 2 I (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Stylaria lacustris 1.6 - 0.3 - 0.3 0.1 Hyalella azteca - 0.4 - 1I. Hydracarina (acarina) - - 0.2 - Baetis sp. - 0.2 - 0.2 0.9 Pseudocloeon sp. - - - 0.1 Tricorythodes sp. - 0.1 0.2 - Caenis sp. - 0 - 0. Hexagenia sp. - 0.2 0-. Coenagriondae 0.1 0.2 0.1 BhlasoLaatidae 0.1 - - - 0.2 - OxyethiraHydroptila sp. 01-- 0.2 0.8 Pyralidae 0.2 - - - Chaob, punctipennis 0.2.-- Procladius sp. - - -0. 0.7 0.8 Coelotanypus sp. - 0.2 - Ablabeseyia sp. 0.2 - 0.3 0.5 Labrundinia sp. 0.2 0.3 Larsia sp. 0.2- - - 0.2 - Cricotopus bicinctus grp. -- -.1 - CryptoEironolus - 0. - - Dicrotendipes 002 - 0.7 0.1 Polypedilus sp. Polypedilas convictue - 0 0.1 Rheotanytarsus 0.2 - -. - 5 06 Tanytarsus - 0.3 0.3- Pleurocera sp. 0.2 - 0.2 0.4 -- -. 0.2- - Physa sp. - Ferrissia sp. 0.2 - TOTAL NACROINVERTEBRATES 2.5 0.6 0.8 1.4 4.9 6.6

D-58 COHMONWEALTH EDISON COMPANY- BRAIDNOOD STATION - 198IMACROINVERTEBRATE DATA DENSITY OF MACROINVERIBRATES FOR EACH DATE ATEACH SITE (I/10a3) ------SITE=KANKAKEE RIVER ------DATES 30AUG88 TIME: DAY NIGHT LOC.: LOC.: [2 K3 K2 [3 DEPTH DEPTH DEPTH DEPTH TOP TOP DOT DOT REP: REP: REP: REP: i I 2 I 2 I (DEN)(DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES H dra - 0.3 0.2 0.2 - - Planariidae 0.2 0.8 0.2 0.2 - 0.2 DeTo digitata - 0.2 - Ophidonais serpentina 0.2 - Pristina leidyi - - 0.2 lavina appendiculata 0.2 - Stylaria latustris 0.5 2.7 0.2 0.8 0.7 - Hyalella azteca 0.5 12.5 2.0 0.2 0.2 0.2 Hydracarina (acarina) 0.7 0.2 - 0.3 0.7 0.3 8aetis sp. - - 0.2 0.2 0.3 Centroptilum -- 0.2 0.2 Callibaetis 0.5 0.4 0.2 Pseudodloeon sp. -- - 0.2 Heptageniidae - 0.2 . 0.2 Tricorythodes sp. 0.5 0.2 0.5 0.5 - 0.2 Caenis s p. - 0.2 0.3 2.1 0.9 Potamantus s. - - 0.2 Hexagenia sp. 1.6 1.2 0.5 Coenagtionidae 1.3 1.0 0.4 1.0 1.6 1.2 Argia sp. - - - - 0.2 Conixidae - - - - 0.2 Hydroptilidae 0.2 - - Hydroptgia - - 0.2 - 0.2 - Oxyethira sp. 0.2 . 0.2 0.2 0.2 Oecetis sp, - - - 0.2 - Petrophila sp. - - 0.2 - -- - - 0.2 Laccophilus sp. 0..2 Peltodytes sp. - 0.2 - - - Hyodropilidae Tropisternus sp. 0.2 . 0.3 - - Enocbrus sq. - 1.0 - - - Ceratopogonidae 1.9 0.2 - - - - 0.3 0.2 - Cbaob. punctipennis - - 1.1 Procladius sp. 1.4 0.5 Coelotanypus sp. - - 0.2 0.4 0.5 Ablabesuyia sp. 0.3 0.2 1.1 - 0.5 Labrundinia sp. - 0.2 - 0.2 - - Larsia sp. 0.2 10.1 0.2 0.8 0.2 - Tbieneaanniayia series - - - - - 0.2 Corynoneura sp. - 0.2 - - - - Cricotopus bicinctus grp. 0.2 - - - - - Dicrotendipes . 0.2 - 0.2 0.2 - Polypedilum sp. - 0.2 - 0.3 0.2 0.2 Polypedilua convictum 0.3 3.7 0.7 0.6 - 0.7 Rheotanytarsus 0.3 0.5 0.4 0.5 0.2 0.2 Tanytarsus - 0.2 Culicidae 0.2 - - - - - Psychoda 0.5 1.3 0.2 - - - Simuliidae - - 0.2 - Simulium - - 0.2 Stratoayiidae 0.2 - - Tabanus sF. - 0.2 - Physa SF. 0o2 2.0 0.4 0.3 0.2 Gyraulus sp. 0.2 0.3 1.2 - 0.2 - Ferrissia sp, 0.2 0.3 - - - 0.2 Corbicula ftmipea - 0.2 - TOTAL NACROINVERTEDRATES 8.9 39.2 7.5 11.9 10.8 8.4

D-59 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 MACROINVERTEDRATE DATA DENSITY OF MACROINVERTBRATES FOR EACH DATE AT EACH SITE (011003) -.--.------...... ------SITEcKANKAKEE RIVER ------DATE= 06SEPB8 TINE: DAY NIGHT LOC.: LOC.: K2 K2 K3 DEPTH DEPTH DEPTH TOP DOT TOP DOT DOT REP: REP: REP: REP: REP: 2 1 2 2 1 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Hydra - - 0.2 - - Stylaria lacestris 4.1 - 0.2 0.5 0.8 1.7 Hyalella azteca 0.9 - 0.2 2.1 1.0 3.3 Hydracarina (acarina) - - - .i 0.6 0.3 Baetis sp. 0.2 - - 1.0 1.0 0.9 Cen troptium - - - 0.2 - 0.3 Callibaetis - - - 0.3 0.8 0.7 Pseudocloeon sp. - - 0.2 1.0 0.2 Baetisca np. - - - 0.3 0.8 0.5 Heptageniidae - - - 0.8 - Stenacron sp. - - 0.6 - 0.2 Stenonela sp. - - 0.2 - - Tricorythodes sp. - 1.0 0.2 1.6 - 0.2 Brachycercus sp., - - 0.2 0.4 - Caenis sp. 0.2 - - 3.7 2.3 1.7 Potamanthus sp. - - - 0.2 0.4 - Hexagenia sp. - - . 4.1 2.5 3.7 Coenagrionidae 0.5 0.2 0.2 3.3 2.3 1.7 Aeshnidae - - - - 0.4 - Potanyia flava 4.1 - - - - - Oxyethira sp. - 0.2 - 1.0 2.1 1.4 Petrophila sp. - - 0.2 - - - Peltodytes sp. - - - - 0.2 - Ceratopogonidae 0.5 - - - 0.2 Procladius sp. - 0.5 0.6 0.7 Coelotanypus sp. - - - 0.2 - - Ablabesoyia sp. - 0.2 - 1.1 1.5 - Thieneaannimypa series - - - 0.2 - 0.2 Thienemannimyia Ip. - - - - 0.3 Cricotopus sylvestris grp. 0.2 - - - - - Chironomus - - 0.2 - - Cryptochironosas - - - - 0.2 Dirotendipe- - - 0.2 - 0.7 PoIypedilum sp. - - - - 0.2 Polypedilum convictue - 0.2 - 0.2 0.2 0.9 Rheotanytarsus 0.2 0.2 0.2 - - - Pleurocera sp. 0.2 - - - - - Physa sp. 0.5 0.8 - 02 - 6yraulus sp. - 0.2 - 0.2 - 0.2 Ferrissia sp. - - - 0.2 - - TOTAL MACROINVERTEDRATES 11.7 2.9 1.1 23.2 19.9 20.4

D-60 COMMONWEALTH EDISON COMPANY - BRAIDWOOD STATION - 1988 NACROINVERTEBRATE DATA DENSITY OF MACROINVERTDRATES FOR EACH DATE AT EACH SITE (1/1103) --...-.----...... ------SITE=KANKAKEE RIVER ------DATE= 13SEP96 TIME: DAY NISHT LOC.: LOC.: K2 K3 K2 K3 DEPTH DEPTH DEPTH DEPTH DOT TOP DOT TOP DOT REP: REP: REP: REP: REP: I 2 1 1 1 2 (DEN) (DEN) (DEN) (DEN) (DEN) (DEN)

SPECIES Stylaria lacustris - - - 0.4 0.3 0.3 Hyalella azteca - - 0.2 2.0 0.3 1.7 Hydracarina (acarina) - - 0.2 1.7 0.2 0.4 Isonychia sp. - - - - 0.1 Baetis sp. - - - 3.8 - 3.6 Callibaetis - - - 0.7 0.2 2.0 Pseudocloeon sp. - - - 1.1 - 0.7 Daetisca sp. - - - 0.2 - - Stenacron sp. - - - 0.2 - - Tricorythodes sp. - - - 1.1 - - Caenis sp. - - - 2.9 - 1.3 Potamanthus sp. - - - 0.1 - - Hexagenia sp. - - - 0.6 . 0.5 Coenagrionidae - - - 2.3 - 0.4 Argia sp. - - - 0.1 Corydalus cornutus - - - 0.1 - - sp. - - - 0.1 - - HydroptilaHydropsyche - 0.65 Oxyethira sp. 0.2 0.3 0.9 18.6 0.3 3.3 Paraponyx sp. - - - 0.1 - - Stenelmis sp. 0.2 - - - - - Procladius sp. - - 1.6 - 2.0 Coelotanypus sp. - - 0.4 - 0.3 Ablabesayla sp. - 0.7 - 0.5 Labrundinia sp. - 0.1 - Larsia sp. - 0.6 - 0.4 Corynoneura sp. - - - 0.1 Thienemanniella sp., - - 0.4 Cricotopus sp. - - - - Cricotopus bicinctus grp. - 0.4 0.4 - 0.1 Cricotopus sylvestris grp. - 0.2 - - - Dicrotendipes - - 0.8 - 0.5 Parachironomus - - - 0.1 Polypedilus sp. - 0.1 0.2 Polypedilum convit.u 0.5 0.4 1.1 0.2 0.8 Rheotanytarsus 0.2 0.4 0.7 - 1.1 Physa sp. 0.7 0.4 0.8 - - Ferrissla sp. - - 0.4 - - TOTAL MACROINVERTEDRATES 2.0 0.3 3.2 44.4 1.9 20.9

D-61 EA Project 10091

APPENDIX E

RESULTS OF SURVEYS TO DETERMINE THE DISTRIBUTION OF THE PALLID CHUB (HYBOPSIS AMNIS) IN THE KANKAKEE RIVER

Prepared for

Commonwealth Edison Company 2 N. LaSalle Chicago, IL 60690

Prepared by

EA Science and Technology 612 Anthony Trail Northbrook, Illinois 60062

November 1989 INTRODUCTION

Effective 15 March 1989, the pallid chub (Hybopsis amnis) (also known as the pallid shiner, Notropis amnis) was classified as endangered by the Illinois DOC. EA has been collecting impingement samples at the Braidwood Nuclear Station since October 1988. On 27 April 1989 a pallid chub was found in the impingement collection, followed by the collection of several others in early May. Their appearance was not unexpected because the Kankakee River near the Braidwood Station harbors one of the few known populations of this species in the state (Skelly and Sule 1983). Because pallid chub had appeared in the impingement collections, it was decided to make collections at a number of Kankakee River loca- tions to determine more about the distribution and abundance of this species.

E-1 METHODS

Collections were made on the Kankakee River during two periods; 16-18 May and 31 May - 1 June 1989. All collections were in the mainstem Kankakee and its adjacent side channels, except for one collections made in Horse Creek, a Kankakee River tributary located near the Braidwood Station, Before the first sampling trip, an Endangered Species Collecting Permit was obtained from Illinois DOC which allowed EA to collect one pallid chub per location up to a maximum of 15 individuals. The collections in mid-May covered most of the Illinois portion of the Kankakee River, from the Indiana border to the 155 bridge. The second set of collections consisted of intensively sampling the river from the Warner Road bridge on the Will/Kankakee County line to the Braidwood Station, the area where all known records of the pallid chub in the Kankakee have occurred. Each sampling location is described in Table 1. Included were five locations sampled by Skelly and Sule (1983) plus an additional 27 locations.

All collections were made using a 30 ft. long x 6 ft. deep bag seine with 3/16" mesh in the straight part of the seine and 1/8" mesh in the bag. Collections were largely confined to those habitats most likely to harbor pallid chubs (i.e., slack water areas over a mud or clay bottom) (Skelly and Sule 1983). Thus, few riffle species were collected. Depending on the quantity and quality of habitat and the presence or absence of species known to associate with the pallid chub (e.g., bullhead minnow- Skelly and Sule 1983) three to ten seine hauls were made at each location. To reduce handling stress, the bag portion of the seine was kept in the water and the fish in it were carefully examined to see if any pallid chubs were present. If more than a few pallid chubs appeared to be present, all specimens that looked like pallid chubs (primarily pallid chubs and mimic shiners) were placed in a pail of water for further examination. One pallid chub was kept at each location as a voucher specimen. At four locations, a second specimen that had been injured during the course of handling and would not survive was also kept. Field and laboratory identifications were made by Mr. Greg Seeqert, senior biologist at EA. All specimens collected during this study were deposited with the Illinois Natural History Survey. The 12 pallid chubs that were retained have been verified by Dr. Lawrence Page, Illinois Natural History Survey.

E-2 RESULTS

Collections at the 32 localities yielded a total of 96 pallid chubs, more than have been collected in 11 years of monitoring (1977-1988) in a 2.5 km area near the Braidwood Station (INHS 1989). The pallid chub was most common vO.3 mile downstream of the Braidwood Station in the area designated as Location 5 by Skelly and Sule (1983). A single seine haul at Location 5R on 16 May yielded 44 pallid chubs, with another haul on 1 June yielding 6 more specimens for a total of 50 from this location in two seine hauls (Table 2). Two seine hauls on 16 May at Location 5L yielded 10 pallid chubs. We did not sample this location on 1 June. No pallid chubs were collected at the four locations sampled downstream of Locations 5L/5R (i.e., Locations 14-17).

Pallid chubs were collected at 7 of the 16 locations sampled between the Warner Road bridge and the RR trestle in Custer Park (i.e., Locations 1-13, iL, 1R, and 27). The seven locations at which it was collected and the number collected were as follows: Location Specimens 6 8 7 4 9 1 11 12 12 8 13 2 1L 1

Six of these seven locations (all except Location IL) are upstream of where the species has been reported in recent years (Skelly and Sule 1983, INHS 1988). It was fairly common (4-12 specimens) at Locations 6, 7, 11, and 12 but it was represented by only one or two specimens at Locations 9, 13, and IL.

One other listed species was captured during this study. Single juvenile river redhorse (Moxostoma carinatum) were collected at Location 6 (where pallid chub was quite common) and at Location 26. Other noteworthy records were the collection of pugnose minnow (Notropisemiliae) at the state line (Location 19), starhead topminnow (Fundulus dispar) at Warner Road bridge (Location 1), and rudd (Scardinius e-throphthalmus) at Locations 1 and 27. The collection of large numbers of ghost shiners (Notropis buchanani) at several locations was also unexpected. The quality and richness of the Kankakee River ichthyofauna is exemplified by the fact that 59 species (Table 3) were collected by seining alone, a gear that is not particularly effective for many large species. The high quality of the fish community is further demonstrated by the fact that these 59 species were collected without even sampling riffles or areas with hard substrates.

E- 3 DISCUSSION

Past surveys of the Kankakee River have found pallid chubs to be either absent (Page et al. undated; Brigham et al. 1981) or uncommon and highly localized (Skelly and Sule 1983, INHS 1989). For example, Page and his colleagues sampled 13 Kankakee River stations in July and Auqust, 1978 and 7 stations in October and November 1979, and did not collect any pallid chubs. The Illinois Natural History Survey (INHS) has been seining and electrofishing six stations in a 2.5 km reach of the Kankakee River near the Braidwood Station annually since 1977. Most of their collections have been made in the summer (usually August). These summer collections yielded 85 pallid chubs through 1988 (INHS 1989). It was common only in 1984 when 49 individuals were collected. It was represented by four or fewer individuals in 8 of the 11 years, and was not collected in the two most recent years of the survey (i.e., 1987 and 1988). Furthermore, the INHS studies suggest that not only is it uncommon, but also that it is highly local in its distribution. Of the 85 specimens reported by INHS (1989), 82 have been collected from a single location (Location 5) downstream of the Braidwood Station.

The results of the present study clearly show that the distribution of the pallid chub is not as restricted as previously thought. We collected it at six locations (Locations 6, 7, 9, 11, 12, and 13) upstream of the 2.5 km reach studied annually by INHS; it was reasonably common at three of those locations. However, the actual abundance of the species is still unclear. On one hand, the fact that we collected 96 pallid chubs in one year suggests that their population may be higher than is suggested by the collection of 85 specimens in 11 years by INHS. Alternatively, however, it may be that because of spawning activities and movement, pallid chubs are more susceptible to capture in the late spring/early summer when we sampled than they are in mid-summer when INHS samples. Similarly, the low number of specimens collected by the INHS (INHS 1989) may be the result of August being a particularly difficult time of year to collect this species --- e.g., perhaps they move into deep water during the summer to avoid high water temperatures. More data are needed to determine whether pallid chub populations are higher than previously thought or whether their apparent abundance is an artifact associated with increased sampling efficiency in the spring and/or decreased sampling efficiency in the summer.

None the less, we find it encouraging that the species is more widely distributed than previously thought. Because most minnows are non- migratory, the collection of pallid chubs at six locations upstream of the Braidwood Station indicates that breeding takes place in several areas of the Kankakee River rather than at a single location downstream of the Braidwood Station.

Forty-two other species were collected at the locations where pallid chubs were found. Five cyprinid species (striped shiner, spotfin shiner, mimic shiner, bluntnose minnow, and bullhead minnow) occurred at all seven of the locations at which pallid chubs were collected, and eight other species (ghost shiner, redfin shiner, golden redhorse, shorthead redhorse,

E-4 rock bass, orangespotted sunfish, longear sunfish, and johnny darter) occurred at six of these seven locations (Table 4). Based on frequency of occurrence, bullhead minnow and-ghost shiner are the species most strongly associated with pallid chubs in the Kankakee River (Table 4). Skelly and Sule (1983) previously noted the close association between pallid chub and bullhead minnow. Pallid chub was also strongly associated with rock bass, juvenile golden redhorse, mimic shiner, striped shiner, johnny darter, and juvenile shorthead redhorse. It showed strongly negative associations with hornyhead chub and sand shiner. Although riffles were not sampled during this study, it is reasonable to conclude that benthic riffle species, especially those that use riffles at all life stages (e.g., northern hogsucker), would also show a negative association with the pallid chub.

The habitats in which we collected pallid chubs were slack-water areas over siIt or clay substrates, with rooted macrophytes typically being sparse or absent. Locations 5L and 5R, where the species was most abundant, are depositional areas with no current, silt substrates, and sparse to moderate aquatic vegetation. All other areas, however, had clay substrates with little or no aquatic vegetation. Interestingly, we sampled many depositional areas whose habitats resembled those at Locations 5L and 5R without collecting any pallid chubs. These areas were typically on the downstream end of islands or on the downstream side of small points of land that jutted out into the river. We also sampled numerous side channels and backwaters near the Illinois-Indiana border without finding any pallid chubs. Aquatic vegetation in these areas ranged from none to dense. Except for 5L and 5R, the areas in which we collected pallid chubs were slack-water areas, but ones that were along the shore of the river, just off the main current. They could best be described as main-channel border habitat. The absence of pallid chubs in backwaters and side channels indicates that the absence of current is not the sole factor affecting their distribution. Main-channel border habitats that have soft substrates are quite limited in the Kankakee River. Such areas are frequently not sampled during fisheries surveys.

Finally, we should note that on the day we sampled, major construction activities were underway at Location 6; the upstream-most location at which we collected pallid chubs. These activities consist of clearing a right of way on either bank, apparently to be followed by laying a pipeline across the river. On the day we were there, a considerable amount of erosion was taking place on the denuded hillsides because of heavy rains. Adverse impacts to the pallid chubs at Location 6 and downstream locations are possible depending on the amount of erosion control, the time the banks are exposed, and the type and extent of the activity associated with laying or buryinq the pipeline.

E-5 REFERENCES

Brigham, A., L. Suloway, and L. Page. 1981. The effects of sedimentation on aquatic life of the Kankakee River. Doc. No. 81/37. III. Dept. Energy and Natural Resources. Chicago, IL.

Illinois Natural History Survey. 1989, Kankakee river fishes of the Braidwood Station Aquatic Monitoring Area, August 1988. INHS Aquatic Biol. Tech. Rpt. 89/1, INHS, Champaign, IL.

Page, L.M., P.W. Smith, L.B. Suloway, A.R. Brigham, D.W. Webb, J.D. Unzicker, andI W.U. Brigham. (undated) The effects of sedimen- tation on aquatic life of the Kankakee River. Phase I. Illinois Nat. Hist. Surv., Urbana. 86 pp.

Skelly, T.M., and M.j. Sule, 1983. The pallid shiner, Notropis amnis Hubbs and Greene, a rare Illinois fish, Transactions of the Illinois State Academy of Science 76:131-138. TABLE 1. SAMPLING LOCATIONS IN THE KANKAKEE RIVER. Station Quad Description

1 Bonfield Side channel on south shore of river immediately downstream of the Warner Rd (WR) bridge (Will/ Kankakee Co. line) 2 Bonfield Upstream end of side channel along north side of the first island downstream of WR bridge 3 Bonfield Downstream end of the same side channel 4 Bonfield Tailwater area downstream of the last of the large islands in the Smith Islands group 5 Bonfield Downstream end of a small midchannel island located about 2 miles downstream of WR bridge 6 Bonfield South shore of the river -2.6 miles downstream of WR bridge. At a pipeline crossing. 7 Boofield South shore of the river -3.2 miles downstream of WR bridge 8 Bonfield Channels along either side of Hoffman Island 9 Bonfield South shore of river immediately upstream of the mouth of Terry Creek 10 Bonfield Area behind small peninsula on the north side of the river, •0.5 mile downstream of Terry Creek 11 Bonfield South side of river -I mile downstream of Terry Creek 12 Bonfield South side of river ~1.3 miles downstream of Terry Creek 13 Bonfield North side of river 'O.6 mile upstream of the RR trestle in Custer Park 14 Wilmington East side of river -2 miles downstream of Custer Park 15 Wilmington Upstream end of side channel to the east of the Wilmington dam 16 Wilmington Side channel at Rt 66 17 Wilmington East shore downstream of island located -1 mile downstream of Wilmington 18 Illiana Heights Backwater on the north side of the river, just on the Indiana side of the border 19 Illiana Heights Side channel on the east side of the river at the state line 20 Illiana Heights Side channel on the north side of the river about 0,4 mile west of the state line 21 Illiana Heights Side channel on the south side of the river about 0.4 mile upstream of Woodland 22 Illiana Heights Side channel on the north side of the river at Woodland 23 Kankakee West side of river, midway between Aroma Park and Momence 24 Kankakee Immediately downstream of bridge in Aroma Park 25 Bourbonnais At Willow Island 26 Bonfield Immediately upstream of Warner Rd bridge 27 Bonfield South shore of the river adjacent to Smith Islands

E-7 TABLE 1. (CONT.)

Station Quad Description

1L* Bonfield North shore of river -0.4 mile upstream of the RR trestle in Custer Park 1R* Bonfield South shore of river 0o.4 mile upstream of the RR trestle in Custer Park 5L* Wilmington East shore of river -0.7 mile downstream of the RR trestle in Custer Park 5R* Wilmington West shore of river vO.7 mile downstream of the RR trestle in Custer Park HC* Essex In Horse Creek, about 100 m from its confluence with the Kankakee River * Locations sampled by Skelly and Sule (1983)

E-8 TABLE 2. RESULTS OF SEINE COLLECTIONS MADE AT LOCATIONS ON THE KANKAKEE RIVER, MAY AND JUNE 1989. Stations

Species1 2/3 4 5 5R/t5La Z7 I LO1 11 12/IR 13111. 14/14- 15b l6b 17 lb 19 20 21 22b 23 24 25 26 27 H.C.c Longnose gar x K Gizzard shad X Grass pickerel x Northern pike Central stoneroller X Carp x K Hornyhead chub X K x x X K K K X K K Golden shiner X x X X Pallid shiner (chub) - X 50/10 8 4 - I - 12 8 3 - Emerald shiner x K K K Ghost shiner X X X K x x K K x Striped shiner X X X I X K x X K x K K X Pugnose minnow K x x Red shiner X X I x Rosyface shiner X XK x x x x x K K Spotfin shiner x K x x X X K K x x ,x x X x K x x x Sand shiner X K x x K X K x x Redfin shiner x K K X X x x x x x x Mimic shiner X K x x X X K K x x x x K K Bluntnose minnow X K K X X K xxX XK K x x x x X X x x x x X Fathead minnow X X X X x x K Bullhead minnow X x x X X x K K x Creek chub Frm Quillback K X X I White sucker X ') Northern hogsucker X Smallmouth buffalo K Spotted sucker K K Silver redhorse X K K K K K X River redhorse K Black redhorse K K x x x K Golden redhorse K x K K K K K Shorthead redhorse K K x K x K X X K X X x Black bullhead K K Yellow bullhead X K K K K x Brown bullhead K Channel catfish K K X I Tadpole madtom X X X x Blackstripe topimnnow X K X x K x K Starhead topminnow X x Drook silverside X K K x X X X K x X x Rock bass X x K x K K Green sunfish X K K Pumpki nseed x K K X K X X xX X Orangespotted sunfish X X X x K K K K X K x Bluegill X K K K K K X K K x X X Longear sunfish X X X X x K K x K K X X x K Smallmouth bass X X Largemouth bass X x X x K White crappie X X K X X X x Black crappie X X x X X X K Johnny darter X X X X X K K x Banded darter X X K K X X X X x Yellow perch K K x X I K X X K Logperch X x K Blackside darter x x X X X K Slenderhead darter K K x K Walleye X 24 10 16 15 24 Total Species 34 19 15 15 33 21 16 16 16 17 26 19 17 11 10 7 2 20 17 14

a Results from collections on two dates. b No specimens retained. C H.C. Horse Creek TABLE 3. FISHES COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK IN 1989.

Scientific Name Common Name

Lepisosteus osseus Longnose gar Dorosoma cepedianum Gizzard shad Esox americanus Grass pickerel Esox lucius Northern pike Cyprinus carpio Carp Notemigonus crysoleucas Golden shiner Semotilus atromaculatus Creek chub Nocomis biguttatus Hornyhead chub Hybopsis amnis Pallid chub Notropis atherinoides Emerald shiner Notropis buchanani Ghost shiner Notropis chrysocephalus Striped shiner Notropis emiliae Pugnose minnow ,Notropis lutrensis Red shiner Notropis rubellus Rosyface shiner Notropis spilopterus Spotfin shiner Notropis stramineus Sand shiner Notropis umbratilis Redfin shiner Notropis volucellus Mimic shiner Pimephales notatus Bluntnose minnow Pimephales promelas Fathead minnow Pimephales vigilax Bullhead minnow Scardinius erythrophthalmus Rudd Campostoma anomalum Common stoneroller Ictiobus bubalus Smallmouth buffalo Carpiodes cyprinus Quillback Moxostoma anisurum Silver redhorse Moxostoma carinatum River redhorse Moxostoma duquesnei Black redhorse Moxostoma erythrurum Golden redhorse Moxostoma macrolepidotum Shorthead redhorse Hypentelium nigricans Northern hogsucker Catostomus commersoni White sucker Minytrema melanops Spotted sucker Ictalurus melas Black bullhead Ictalurus natalis Yellow bullhead Ictalurus nebulosus Brown bullhead Ictalurus punctatus Channel catfish -oturus gyrinus Tadpole madtom Fundulus dispar N. starhead topminnow Fundulus notatus Blackstripe topminnow Labidesthes sicculus Brook silverside Micropterus dolomieui Smallmouth bass Micropterus salmoides Largemouth bass Lepomis cyanellus Green sunfish Lepomis. gibbosus Pumpkinseed Lepomis humilis Orangespotted sunfish Lepomis macrochirus Bluegill Lepomis megalotis Longear sunfish Ambloplites rupestris Rock bass Pomoxis annularis White crappie Pomoxis nigromaculatus Black crappie

E-10 TABLE 3. (CONT.)

Scientific Name Common Name

Stizostedion vitreum Wall eye Perca flavescens Yellow perch Percina caprodes Logperch Percina maculata Blackside darter Percina phoxocephala Slenderhead darter Etheostoma nigrum Johnny darter Etheostoma zonale Banded darter

E-11 TABLE 4. COMPARISON BETWEEN FREQUENCY OF OCCURRENCE AT LOCALITIES WHERE PALLID CHUBS OCCURRED AND FREQUENCY OF OCCURRENCE-AT ALL LOCATIONS SAMPLED.

Frequency of Occurrence (%) Pallid Pallid Chub Chub All Minus All Locations Locations Locations

Bullhead minnow 100 63 37 Ghost shiner 71 40 31 Rock bass 86 58 28 Golden redhorse 86 58 28 Mimic shiner 100 75 25 Striped shiner 100 75 25 Johnny darter 86 63 23 Shorthead redhorse 86 63 23 Bluntnose minnow 100 79 21 Redfin shiner 86 67 19 Yellow bullhead 43 25 18 Banded darter 57 42 15 Blackside darter 57 42 15 Orangespotted sunfish 86 71 15 Longear sunfish 86 71 15 Tadpole madtom 43 29 14 Slenderhead darter 43 29 14 Black crappie 43 29 14 Spotfin shiner 100 91 9 Logperch 57 50 7 Green sunfish 29 25 4 Brook silverside 57 54 3 Rosyface shiner 43 42 1 Smallmouth bass 43 42 1 Silver redhorse 43 50 -7 Largemouth bass 29 37 -8 Golden shiner 14 25 -11 Bluegill 29 42 -13 Sand shiner 29 46 -17 Hornyhead chub 29 50 -21

E-12 APPENDIX F IMPINGEMENT -- DAILY FISH COLLECTION SUMMARY, 1988-1989

F-1 1988-89 BRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: ]IOCT 12OCT 170CT IBOCT 19OCT 240CT 25OCT 26OCT 3IOCT OINOV 02NOV 07NOV O8NOV 09NOV IINOV 15NOV IGNOV 21NOV LONGNOSE BAR ------GIZZARD SHAD 505 124 53 69 85 67 98 128 21 31 41 52 16 36 22 8 55 234 GRASS PICKEREL ...... NORTHERN PIKE ------GOLDFISH ------COMMON CARP - - - - - I - - - HORNYHEAD CHUB ------GOLDEN SHINER ------PALLID SHINER ------EMERALD SHINER - - - - - I - 2 - - GHOST SHINER ------STRIPED SHINER ------3 1 RED SHINER ------ROSYFACE SHINER ------I I I1 2 5 SPOTFIN SHINER - - - 2 1 - - - - - SAND SHINER ------REDFIN SHINER - - - MIMIC SHINER - - - - 3 2 SPOTFIN X RED SHINER - - - - - SUCKERMOUTH MINNOW - - - - - BLUNTNOSE MINNOW - - - - - FATHEAD MINNOW ------2 1 - - - - - BULLHEAD MINNOW ------2 - - - 2 DUILLBACK - -" UNID CARPIODES -. ---. WHITE SUCKER -- - - - NORTHERN HOG SUCKER " - - - -... SMALLMOUTH BUFFALO SPOTTED SUCKER ---.- SILVER REDHORSE - - - RIVER REDHORSE - .--. -- BLACK REDHORSE - - GOLDEN REDHORSE --.- SHORTHEAD REDHORSE ---- UNID MOXOSTOMA -. -.-. BLACK BULLHEAD - - YELLOW BULLHEAD --.. 1 BROWN BULLHEAD - - CHANNEL CATFISH .. ---- STONECAT - - 1 1 4 1 TADPOLE NADTOM .. .--. PIRATE PERCH -.--- BLACKSTRIPE TOPHINNOW -- -.- BROOK SILVERSIDE - - - - - I I YELLOW BASS .---. ROCK BASS - - 1 9 4 2 26 8 4 13 4 5 13 5 12 28 GREEN SUNFISH - - - - I - - 2 1 - - 1 3 5 ORANGESPOTTED SUNFISH ------BLUEGILL - 2 1 3 2 - I - - - 1 I - 21 7 LONGEAR SUNFISH 3 - I - 4 1 2 4 3 - 2 - 2 5 3 10 5 HYBRID SUNFISH ------UNID LEPOMIS - - - - - 7 SNALLNOUTH BASS 2 1 3 1 7 6 3 1 2 - - - 6 1 5 2 LARGEMOUTH BASS - - - - 3 5 1 - 2 1 1 1 1 2 3 WHITE CRAPPIE - - BLACK CRAPPIE I - 1 - RAINBOW DARTER ------.- JOHNNY DARTER ---- BANDED DARTER -----.- YELLOW PERCH ----- LOGPERCH ..- - BLACKSIDE DARTER - - SLENDERHEAD DARTER ------FRESHWATER DRUM - - - 1 - - - TOTAL FISH 510 125 54 78 88 93 114 144 59 47 47 90 23 46 52 23 128 310

F-2 198-89 BRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLIN6 DATE

SPECIES DATE: 22NOV 28NOV 29NOY 30NOV 05DEC OGDEC O7DEC 12DEC 13DEC 14DEC 19DEC 21DEC 2GDEC 27DEC 2BDEC 02JAN 03JAN 04JAN ------LONGNOSE GAR GIZZARD SHAD 305 351 104 180 174 33 20 16 38 82 214 681 2573 1126 1059 372 481 180 GRASS PICKEREL NORTHERN PIKE GOLDFISH COMMON CARP 2 HORNYHEAD CHUB GOLDEN SHINER PALLID SHINER EMERALD SHINER GHOST SHINER STRIPED SHINER RED SHINER ROSYFACE SHINER i SPOTFIN SHINER SAND SHINER REDFIN SHINER MIMIC SHINER 2 SPOTFIN X RED SHINER SUCKERMOUTH MINNOW BLUNTNOSE MINNOW 2 FATHEAD MINNOW BULLHEAD MINNOW 2 I GUILLBACK UNID CARPIODES WHITE SUCKER NORTHERN HOG SUCKER SMALLMOUTH BUFFALO SPOTTED SUCKER SILVER REDHORSE RIVER REDHORSE BLACK REDHORSE 1 GOLDEN REDHORSE 2 SHORTHEAD REDHORSE UNID MOXOSTOMA BLACK BULLHEAD YELLOW BULLHEAD BROWN BULLHEAD 1 CHANNEL CATFISH STONECAT TADPOLE HADTOM PIRATE PERCH BLACKSTRIPE TOPHINNOW BROOK SILVERSIDE YELLOW BASS 9 3 30 ROCK BASS 9 7 10 GREEN SUNFISH 2 ORANGESPOTTED SUNFISH 1 BLUE6ILL 2 LONGEAR SUNFISH 1 3 HYBRID SUNFISH I LEPONIS - 1 UNID - 6 SMALLMOUTH BASS LARGEMOUTH BASS WHITE CRAPPIE BLACK CRAPPIE RAINBOW DARTER JOHNNY DARTER I BANDED DARTER YELLOW PERCH I LOGPERCH I BLACKSIDE DARTER SLENDERHEAD DARTER FRESHWATER DRUM TOTAL FISH 354 429 122 202 237 50. 29 26 59 99 288 707 2597 1130 1089 382 526 243

F-3 1980-89 BRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES IBJAN ------....DATE: 09JAN JOJAN IlJAN 16JAN 17JAN 233AN 24JAN 25JAN 30JAN 31JAN OIFEB O7FEB 13FEB 14FEB 15FEB 2OFEB 21FEB LONGNOSE GAR GIZZARD SHAD - 835 567 150 105 90 81 25 58 78 280 64 21 GRASS PICKEREL NORTHERN PIKE GOLDFISH COMMON CARP I HORNYHEAD CHUB GOLDEN SHINER 2 PALLID SHINER EMERALD SHINER GHOST SHINER STRIPED SHINER 2 RED SHINER ROSYFACE SHINER 1 16 2 30 SPOTFIN SHINER 1 1 1 SAND SHINER REDFIN SHINER MIMIC SHINER 3 3 1 4 2 SPOTFIN X RED SHINER SUCKERNOUTH MINNOW BLUNTNOSE MINNOW 2 2 2 1 5 FATHEAD MINNOW 1 1 1 2 BULLHEAD MINNOW 7 2 2 1 2 2 OUILLDACK UNID CARPIODES WHITE SUCKER NORTHERN HOG SUCKER I 1 SMALLMOUTH BUFFALO 2 1 SPOTTED SUCKER SILVER REDHORSE 15 14 7 RIVER REDHORSE BLACK REDHORSE GOLDEN REDHORSE 2 2 1 SHORTHEAD REDHORSE 13 7 9 UNID MOXOSTOMA 1 1 BLACK BULLHEAD - 1 YELLOW BULLHEAD - 1 BROWN BULLHEAD CHANNEL CATFISH 2 STONECAT 1 TADPOLE MADTOM PIRATE PERCH BLACKSTRIPE TOPHINNOW 1 I 6 3 BROOK SILVERSIDE 5 YELLOW BASS 41 ROCK BASS 13 17 10 18 50 44 1 2 4 GREEN SUNFISH 5 1 ORANGESPOTTED SUNFISH 1 - 1 BLUEGILL 2 5 2 1 LONGEAR SUNFISH 4 7 4 7 19 7 5 HYBRID SUNFISH UNIO LEPOMIS 4 10 10 SMALLNOUTH BASS 4 2 3 2 11 24 LAR6EMOUTH BASS 1 WHITE CRAPPIE a 1 - BLACK CRAPPIE - 5 I RAINBOW DARTER JOHNNY DARTER BANDED DARTER YELLOW PERCH 2 LOGPERCH BLACKSIDE DARTER 5 1 SLENDERHEAD DARTER FRESHWATER DRUM - 1

TOTAL FISH 0 931 655 304 190 134 201 129 125 52 79 137 454 158 40 37 146 31 1988-89 BRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 22FEB 27FEB 28FED OIMAR O6MAR 07MAR 08MAR I3MAR I4MAR 15MAR 20MAR 21AR 22MAR 27MAR 28MAR IOAPR IIAPR 12APR LONGNOSE GAR ------GIZZARD SHAD 3 1 1 3 4 2 2 3 2 4 1 1 - - - 3 7 5 GRASS PICKEREL ...... NORTHERN PIKE ------GOLDFISH ------COMMON CARP - - - - I 1 2 - HORNYHEAD CHUB - - - 2 - 2 5 - 1 1 - - 1 GOLDEN SHINER I - I - 4 1 - 4 2 ! 8 - i - PALLID SHINER ------EMERALD SHINER I - 2 - - GHOST SHINER - - - - - STRIPED SHINER 1- - I - - It 3 10 2 RED SHINER ------ROSYFACE SHINER 24 3 1 14 24 19 33 3 - - 2 - - - 1 2 1 SPOTFIN SHINER 1 - - - 7 1 4 13 16 38 17 9 25 - 7 4 6 SAND SHINER ------REDFIN SHINER - - - - MINIC SHINER - - - I 2 2 3 3 6 1 1 18 I - 3 - SPOTFIN X RED SHINER ------1 ------SUCKERMOUTH MINNOW ------I DLUNTNOSE MINNOW 1 3 - 1 7 5 2 7 2 3 17 5 13 - - FATHEAD MINNOW - - I - - 6 4 1 2 1 4 - I BULLHEAD MINNOW - - - - 2 3 - 4 1 1 - 1 - 1 4 5 OUILLBACK - - - 8 1 4 ------UNIO CARPIODES - - - -. WHITE SUCKER - - - - NORTHERN HOG SUCKER ------SHALLMOUTH BUFFALO - - I .-. . SPOTTED SUCKER - - - .- SILVER REDHORSE - 1 4 7 7 i1- - RIVER REDHORSE ------BLACK REDHORSE - I - - - GOLDEN REDHORSE I - - 1 3 2 - 1 - SHORTHEAD REDHORSE - - 3 6 7 2 1 - 1 UNIP HOXOSTOMA ------BLACK BULLHEAD - 3 1 - - I YELLOW BULLHEAD - I- 1 - - BROON BULLHEAD ------CHANNEL CATFISH I - I 1 2 - - 4 - - 2 - STONECAT - 1 2 - 3 1 3 3 - 3 - -I - TADPOLE MADTOM ------PIRATE PERCH ------BLACKSTRIPE TOPMINNOW ------BROOK SILVERSIDE 20 - 13 6 4 5 3 1 2 1 12 3 7 1 YELLOW BASS ------ROCK BASS 8 4 5 7 111 116 146 76 22 51 90 13 154 24 2 17 24 9 GREEN SUNFISH - 1 - - 4 5 1 1 9 - 6 2 7 - - - 2 - ORANGESPOTTED SUNFISH I - - - 2 1 - 4 1 10 4 - 5 - - 5 - 2 BLUEGILL - - - - 3 - 1 B 5 14 18 1 4 1 - 8 7 4 LON6EAR SUNFISH - 2 - - 10 20 9 t1 8 33 27 3 38 10 - 4 6 3 HYBRID SUNFISH - - - - - I ------UNID LEPOHIS ------SMALLNOUTH BASS 3 5 6 5 28 45 44 22 13 7 13 3 10 10 - 1 3 1 LAROEMOUTH BASS - I - - 2 - - 3 1 - I - - - - - WHITE CRAPPIE ------I - - 2 - I BLACK CRAPPIE - - - - I - I - - 4 - - 2 3 - RAINBOW DARTER ------I ------JOHNNY DARTER I - - - I ------I BANDED DARTER - - - - - I - - - - - YELLOW PERCH - - - - I - - - - I - L06PERCH - - - 1 3 1 4 2 3 - - 3 2 1 BLACKSIDE DARTER 2 - - - 2 1 2 2 3 8 - - 7 - I SLENDERHEAD DARTER - - - - - I ------FRESHWATER DRUM - - - I I - I ------TOTAL FISH 68 22 15 39 253 256 285 196 104 187 224 47 324 61 5 57 81 41

F-5 1988-89 BRAIDNOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 19APR 24APR 25APR 26APR OIMAY 02NAY 03MAY OBMAY 09MAY IONAY 15MAY 16HAY 17MAY 22MAY 23MAY 24MAY 29MAY 30MAY LONGNOSE GAR - - - GIZZARD SHAD 2 I - I GRASS PICKEREL - " NORTHERN PIKE --- -. GOLDFISH ----- COMMON CARP ---- HORNYHEAD CHUB ---.- GOLDEN SHINER - 3 - - 1 3 2 2 PALLID SHINER i - 1 3 - - - 1 2 -- i ENERALD SHINER I - - - - GHOST SHINER ---- 2 STRIPED SHINER - 2 1 - 1 - 6 6 RED SHINER - - - - - ROSYFACE SHINER 2 - 1 1 8 8 1 2 1 6 1 1 - 1 1 - SPOTFIN SHINER 1 - 3 4 2 1 6 2 3 2 1 1 1 3 SAND SHINER - 1 - - 1 1 - - - I REDFIN SHINER - - - - NIMIC SHINER - 1 1 2 2 4 5 2 1 - - 1 2 5 4 SPOTFIN X RED SHINER ------SUCKERHOUTH MINNOW - - - - DLUNTNOSE MINNOW I - I - 1 1 4 3 9 5 3 2 3 1 4 3 FATHEAD MINNOW - 3 - - I I - - - 1 BULLHEAD NINNOW 4 - - 2 1 1 4 - - - 1 - OUILLBACK I ------UNID CARPIODES - - 1 - .- WHITE SUCKER - - - - - NORTHERN HOG SUCKER - - - - - SMALLMOUTH BUFFALO - - - - - SPOTTED SUCKER - - - - - SILVER REDHORSE - - - - - RIVER REDHORSE - - - BLACK REDHORSE -- GOLDEN REDHORSE 2 - I - 2 SHORTHEAD REDHORSE - - - - - 2 UNID NOXOSTOMA - - "I- - BLACK BULLHEAD - - YELLOW BULLHEAD --.-. BROWN BULLHEAD -.-- CHANNEL CATFISH 2 1 1 - - 1 2 1 - - 1 2 - I I STONECAT - - - 2 2 2 1 - - 2 1 2 TADPOLE HADTOM ... PIRATE PERCH ---. BLACKSTRIPE TOPHINNOW -..-- BROOK SILVERSIDE I 1 1 I - - 222- 2 YELLOW BASS 1 -- -.. ROCK BASS 3 3 4 4 5 0 6 -2 1 4 1 3 - II 8 GREEN SUNFISH 1 2 - - - - I - - - - I - - ORANGESPOTTED SUNFISH - - - I - - - 1 4 BLUEGILL 5 - - - 1 2 3 - I - 1 LONGEAR SUNFISH 6 1 3 1 2 1 - I I - 1 - 27 8 HYBRID SUNFISH ------UNID LEPOMIS ------SMALLMOUTH BASS 1 2 2 3 2 1 2 1 1 2 1 1 3 2 6 5 LARGEMOUTH BASS ------WHITE CRAPPIE 2 1 3 - - 3 - - - - BLACK CRAPPIE I - - - 3 - I - - RAINBOW DARTER ------JOHNNY DARTER ------BANDED DARTER ------YELLOW PERCH ------LOGPERCH 1 - 1 1 1 3 I - - - - BLACKSIDE DARTER ------SLENDERHEAD DARTER ------FRESHWATER DRUM ------TOTAL FISH 38 14 22 16 41 47 30 14 25 26 17 *4 15 I1 22 9 71 60

F-6 19B8-89 BRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 31MAY 053UN 065UN 073UN 12JUN 133JU 143JU 193ON 20JUN 21JUN 2631U 2731U 2831N 04JUL 053UL X0JUL IIJUL 12JUL LONONOSE GAR .... GIZZARD SHAD I 1-.. GRASS PICKEREL - - - 2 - - 1 NORTHERN PIKE 2 - - - GOLDFISH - -.. COMMON CARP -- - HORNYHEAD CHUB - - I - 1 1 - GOLDEN SHINER 3 -- - I PALLID SHINER 3 1 1.... EMERALD SHINER - - -. GHOST SHINER - - - 1 - - I - - STRIPED SHINER 2 5 5 5 - 2 3 5 3 I 2 RED SHINER ------ROSYFACE SHINER 4 - - 3 - - I - - - SPOTFIN SHINER 1 4 4 4 1 - 3 2 1 4 5 3 3 1 2 SAND SHINER - I ------REDFIN SHINER ------I - - - - MIMIC SHINER 9 2 - 1 1 1 3 I - - I - - SPOTFIN X RED SHINER ------SUCKERNOUTH MINNOW ------BLUNTNOSE MINNOW 5 1 1 - 1 1 1 - 2 - 1 - - FATHEAD MINNOW I ------BULLHEAD MINNON 3 - - - - - 1 2 QUILLOACK ------UNID CARPIODES ------WHITE SUCKER ------NORTHERN HOG SUCKER ------SMALLMOUTH BUFFALO - - - - SPOTTED SUCKER - - - - SILVER REDHORSE - - - RIVER REDHORSE - - 1.. . BLACK REDHORSE - - .. GOLDEN REDHORSE I. -.. - - SHORTHEAD REDHORSE - 2 - - - UNID MOXOSTOMA 1.- .. .. BLACK BULLHEAD ...... YELLOW BULLHEAD 1- - .. .-.. BROWN BULLHEAD . -. ..-. CHANNEL CATFISH I - I - 1 1 2 1 - 1 - - STONECAT 3 1 - 1 3 3- TADPOLE MADTON - 1 .. ...- PIRATE PERCH ...-. BLACKSTRIPE TOPHINNOW ...... BROOK SILVERSIDE I - YELLOW BASS ---. ROCK BASS I 1 1 5 1 - 2 1 1 2 1 GREEN SUNFISH - - - 1 1 I - 1 - ORANGESPOTTED SUNFISH 3 2 I 1 1 2 - -- - BLUEGILL - 1 - - 1 - 1 1 2 1 - - 1 LONGEAR SUNFISH 5 - 1 1 3 2 3 -- HYBRID SUNFISH ------UNID LEPORIS ------SMALLMOUTH BASS 4 4 1 1 - -- - 2 1 1 LARGEMOUTH BASS - - - I - - WHITE CRAPPIE I -- - I - - BLACK CRAPPIE - - - - 2 - 1 RAINBOW DARTER - - - JOHNNY DARTER - - -- BANDED DARTER - -- - YELLOW PERCH - - - LOSPERCH - - -- BLACKSIDE DARTER - - - SLENDERHEAD DARTER - - -. FRESHWATER DRUM - - -. TOTAL FISH 55 23 16 23 11 13 22 11 11 13 5 17 15 9 12 4 7 12

F-7 1988-89 BRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 17JUL IBJUL 19JUL 3IJUL OIAUG 02AUG O7AUG OBAUG 09AUG 14AU6 15AUG I6AU6 17AUG 22AU6 23AUG 28AUG 29AU6 3OAUG ...... - LONGNOSE BAR GIZZARD SHAD I - 2 GRASS PICKEREL NORTHERN PIKE GOLDFISH COMMON CARP - I HORNYHEAD CHUB - 1 - GOLDEN SHINER PALLID SHINER EMERALD SHINER GHOST SHINER STRIPED SHINER 4 RED SHINER ROSYFACE SHINER I - - SPOTFIN SHINER SAND SHINER -I REDFIN SHINER MIMIC SHINER I - 1 SPOTFIN X RED SHINER SUCKERHOUTH MINNOW BLUNTNOSE MINNOW FATHEAD MINNOW BULLHEAD MINNOW OUILLOACK UNID CARPIODES WHITE SUCKER 2 NORTHERN HOG SUCKER SMALLMOUTH BUFFALO SPOTTED SUCKER SILVER REDHORSE RIVER REDHORSE BLACK REDHORSE GOLDEN REDHORSE SHORTHEAD REDHORSE UNID NOXOSTOMA BLACK BULLHEAD 2 YELLOW BULLHEAD BRONH BULLHEAD CHANNEL CATFISH STONECAT 2 3 4 I - 1 TADPOLE MADTOM PIRATE PERCH BLACKSTRIPE TOPMINNOW BROOK SILVERSIDE YELLOW BASS 8 ROCK BASS 3 I - - GREEN SUNFISH 1 - 1 ORANGESPOTTED SUNFISH 4 BLUEGILL 2 - I LONGEAR SUNFISH 69 I I HYBRID SUNFISH UNID LEPOMIS SNALLMOUTH BASS - I LARGENOUTH BASS WHITE CRAPPIE BLACK CRAPPIE RAINBOW DARTER JOHNNY DARTER BANDED DARTER YELLOW PERCH LOGPERCH BLACKSIDE DARTER SLENDERHEAD DARTER FRESHWATER DRUM TOTAL FISH 9 99 21 3 2 3 14 II 6 8 4 14 2 6 7 0 5

F-8 19BB-89 BRAIDWOOD IMPINGEMENT STUDY - COMMONWEALTH EDISON NUMBER OF FISH COLLECTED ON EACH SAMPLING DATE

SPECIES DATE: 04SEP 25SEP 2GSEP 27SEP 020CT 03OCT 04OCT LON6NOSE GAR ------GIZZARD SHAD 6 - - 4 2 1 2 GRASS PICKEREL - - NORTHERN PIKE - - GOLDFISH - - COMMON CARP - HORNYHEAD CHUB GOLDEN SHINER PALLID SHINER EMERALD SHINER GHOST SHINER STRIPED SHINER RED SHINER - - ROSYFACE SHINER ------SPOTFIN SHINER ------SAND SHINER ------REDFIN SHINER ------MIMIC SHINER ------SPOTFIN X RED SHINER ------SUCKERMOUTH MINNOW I ------BLUNTNOSE MINNOW ------FATHEAD MINNOW - - - - BULLHEAD MINNOW - - - - GUILLBACK - - - UNID CARPIODES -- - WHITE SUCKER -- - NORTHERN HOG SUCKER -- - SNALLMOUTH BUFFALO - - - SPOTTED SUCKER - - -- SILVER REDHORSE - - RIVER REDHORSE - - -- BLACK REDHORSE - - -- GOLDEN REDHORSE - - - SHORTHEAD REDHORSE - - - I UNID MOXOSTOMA - - - BLACK BULLHEAD - - YELLOW BULLHEAD - - BROWN BULLHEAD - - CHANNEL CATFISH - - - STONECAT 2 I TADPOLE MADTOM - -- PIRATE PERCH - -- BLACKSTRIPE TOPHINNOW - - BROOK SILVERSIDE - - YELLOW BASS - - ROCK BASS - - GREEN SUNFISH - - ORANGESPOTTED SUNFISH - - BLUEGILL - 5 - I - LONGEAR SUNFISH 1 4 2 1 2 1 HYBRID SUNFISH ------UNID LEPOMIS SMALLMOUTH BASS I - LARGEMOUTH BASS I - WHITE CRAPPIE - 2 - BLACK CRAPPIE - - RAINBOW DARTER JOHNNY DARTER BANDED DARTER - - YELLOW PERCH - - LOSPERCH - - BLACKSIDE DARTER - - SLENDERHEAD DARTER - - FRESHWATER DRUM - - TOTAL FISH 11 9 2 11 5 2 4

F-9 APPENDIX G

IMPINGEMENT -- RAW FISHERIES DATA, 1988-1989

G-1 1900-89 DRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEI6HT

DATE: IIOCT69 GIZZARD SHAD 94 7 GIZZARD SHAD 93 8 GIZZARD SHAD 177 57 GIZZARD SHAD 98 9 GIZZARD SHAD 110 10 GIZZARD SHAD 94 7 GIZZARD SHAD 97 8 GIZZARD SHAD 100 9 GIZZARD SHAD 103 10 6IZZARD SHAD 119 12 GIZZARD SHAD 89 5 GIZZARD SHAD 99 8 GIZZARD SHAD 94 7 GIZZARD SHAD 103 8 6IZZARD SHAD 93 7 GIZZARD SHAD 77 3 6IZZARD SHAD 95 7 GIZZARD SHAD B8 6 GIZZARD SHAD 74 3 GIZZARD SHAD 71 3 GIZZARD SHAD 96 9 GIZZARD SHAD 102 8 GIZZARD SHAD 62 6 GIZZARD SHAD 77 3 GIZZARD SHAD 95 7 GIZZARD SHAD 92 6 GIZZARD SHAD 77 3 GIZZARD SHAD 79 4 GIZZARD SHAD 91 7 GIZZARD SHAD 71 3 GIZZARD SHAD 475 4100 LONGEAR SUNFISH 78 9 LONGEAR SUNFISH 67 12 LONGEAR SUNFISH 77 9 SMALLMOUTH BASS 115 25 SMALLNOUTH BASS 67 4 DATE: 12OCT90 GIZZARD SHAD 94 1200 GIZZARD SHAD 93 GIZZARD SHAD 02 5 GIZZARD SHAD 88 5 GIZZARD SHAD 79 4 GIZZARD SHAD 8B 6 GIZZARD SHAD 104 9 GIZZARD SHAD 103 10 GIZZARD SHAD 80 5 GIZZARD SHAD 114 12 GIZZARD SHAD 105 9 GIZZARD SHAD 75 4 GIZZARD SHAD 78 4 GIZZARD SHAD 102 10 GIZZARD SHAD 97 8 GIZZARD SHAD 92 6 GIZZARD SHAD 100 9 GIZZARD SHAD 95 8 GIZZARD SHAD 67 3 GIZZARD SHAD 103 9 GIZZARD SHAD 92 5 GIZZARD SHAD 68 2 6IZZARD SHAD 90 5 GIZZARD SHAD 76 4 GIZZARD SHAD 72 3 GIZZARD SHAD 97 8 GIZZARD SHAD 73 3 GIZZARD SHAD 74 3 GIZZARD SHAD 102 10

G-2 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 73 3 ROCK BASS 75 9 DATE: 170CT88 GIZZARD SHAD 4 GIZZARD SHAD 1 GIZZARD SHAD 99 6 GIZZARD SHAD 101 8 6IZZARD SHAD 103 9 GIZZARD SHAD 91 5 GIZZARD SHAD 93 5 GIZZARD SHAD 92 6 GIZZARD SHAD 82 5 GIZZARD SHAD 114 II GIZZARD SHAD 109 9 GIZZARD SHAD 113 12 6IZZARD SHAD 112 9 6IZZARD SHAD 97 8 GIZZARD SHAD 97 5 6IZZARD SHAD 79 4 GIZZARD SHAD 98 9 GIZZARD SHAD 93 7 GIZZARD SHAD 79 3 GIZZARD SHAD 89 5 GIZZARD SHAD 99 6 GIZZARD SHAD 78 3 GIZZARD SHAD 87 4 GIZZARD SHAD 103 6 GIZZARD SHAD 131 19 GIZZARD SHAD 105 9 GIZZARD SHAD 95 8 GIZZARD SHAD 77 4 GIZZARD SHAD 123 12 GIZZARD SHAD 112 10 GIZZARD SHAD 03 5 GIZZARD SHAD 19 to; SNALLHOUTH BASS 375 580o DATE: 18OCT88 GIZZARD SHAD 112 12 GIZZARD SHAD 98 7 GIZZARD SHAD 110 11 GIZZARD SHAD 98 7 GIZZARD SHAD 107 7 GIZZARD SHAD 106 9 GIZZARD SHAD 105 8 GIZZARD SHAD 104 10 GIZZARD SHAD 109 9 GIZZARD SHAD I11 10 GIZZARD SHAD 77 3 GIZZARD SHAD 95 6 GIZZARD SHAD 98 7 GIZZARD SHAD 78 3 GIZZARD SHAD 104 9 6IZZARD SHAD 82 4 GIZZARD SHAD 114 12 GIZZARD SHAD 74 3 GIZZARD SHAD 105 7 GIZZARD SHAD 110 9 GIZZARD SHAD 99 8 GIZZARD SHAD 93 7 GIZZARD SHAD 93 6 GIZZARD SHAD 74 4 GIZZARD SHAD 104 8 GIZZARD SHAD Io 9 6IZZARD SHAD 95 6 GIZZARD SHAD 110 10 GIZZARD SHAD 99 8 GIZZARD SHAD 95 7

G-3 1988-89 BRAIDNOOD STATION IHPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT SPOTFIN SHINER 58 1 SPOTFIN SHINER 62 1 ROCK BASS 62 4 BLUEGILL 42 1 BLUEGILL 86 8 LONGEAR SUNFISH 85 13 SNALLMOUTH BASS 100 13 SHALLHOUTH BASS 72 5 SMALLMOUTH BASS 86 8 DATE: 19OCTB8 GIZZARD SHAD 54 400 GIZZARD SHAD 116 GIZZARD SHAD 117 15 GIZZARD SHAD 142 20 GIZZARD SHAD 136 25 GIZZARD SHAD 132 22 GIZZARD SHAD 79 4 GIZZARD SHAD 86 5 GIZZARD SHAD 73 3 GIZZARD SHAD 109 12 GIZZARD SHAD 131 16 GIZZARD SHAD 96 8 GIZZARD SHAD 77 4 6IZZARD SHAD 69 3 GIZZARD SHAD 208 95 6ZZARD SHAD 56 1 GIZZARD SHAD 100 9 GIZZARD SHAD 140 26 GIZZARD SHAD 145 30 GIZZARD SHAD 103 to GIZZARD SHAD 69 3 GIZZARD SHAD 62 2 GIZZARD SHAD 92 6 GIZZARD SHAD 113 12 GIZZARD SHAD 115 13 GIZZARD SHAD 86 5 GIZZARD SHAD 87 6 GIZZARD SHAD 91 7 GIZZARD SHAD 88 6 GIZZARD SHAD 61 2 GIZZARD SHAD 60 2 GIZZARD SHAD 62 2 SPOTFIN SHINER 58 1 BLUEGILL 47 2 SMALLHOUTH BASS 129 18 DATE: 240CT88 GIZZARD SHAD 37 320 GIZZARD SHAD 257 170 GIZZARD SHAD 122 15 GIZZARD SHAD 138 23 GIZZARD SHAD 109 12 GIZZARD SHAD 132 21 GIZZARD SHAD 113 14 GIZZARD SHAD 99 8 GIZZARD SHAD 100 9 GIZZARD SHAD 94 7 GIZZARD SHAD 118 22 GIZZARD SHAD 120 17 GIZZARD SHAD 103 9 GIZZARD SHAD 97 9 GIZZARD SHAD 130 14 GIZZARD SHAD 104 10 GIZZARD SHAD 1oo 8 GIZZARD SHAD 101 9 GIZZARD SHAD 106 12 GIZZARD SHAD 107 1o GIZZARD SHAD 79 3

G-4 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH #EIGHT COUNT WEIGHT GIZZARD SHAD - 5- - GIZZARD SHAD 77 4 GIZZARD SHAD 69 3 GIZZARD SHAD 54 1 GIZZARD SHAD 62 2 GIZZARD SHAD 83 5 GIZZARD SHAD 95 9 GIZZARD SHAD 93 6 GIZZARD SHAD 75 4 COMMON CARP 201 160 EMERALD SHINER 88 4 ROCK BASS 71 6 ROCK BASS 101 20 ROCK BASS 82 11 ROCK BASS 76 9 ROCK BASS 80 11 ROCK BASS 71 8 ROCK BASS 55 2 ROCK BASS 62 4 ROCK BASS 67 7 BLUEGILL 72 7 BLUEGILL 41 1 BLUEGILL 52 1 LONGEAR SUNFISH 103 27 LONGEAR SUNFISH 102 25 LON6EAR SUNFISH 80 1o LON6EAR SUNFISH 98 26 SMALLNOUTH BASS 103 15 SMALLMOUTH BASS 101 12 SMALLMOUTH BASS 91 11 SMALLNOUTH BASS 68 4 SMALLNOUTH BASS 81 7 SMALLMOUTH BASS 79 6 SMALLMOUTH BASS 72 2 BLACK CRAPPIE 105 15 DATE: 25OCT08 GIZZARD SHAD 1500 GIZZARD SHAD 6i GIZZARD SHAD 92 9 GIZZARD SHAD 130 19 GIZZARD SHAD 103 10 GIZZARD SHAD 124 19 GIZZARD SHAD 104 13 6IZZARD SHAD 81 5 GIZZARD SHAD 85 6 GIZZARD SHAD 105 I1 GIZZARD SHAD 8t 5 GIZZARD SHAD 67 3 GIZZARD SHAD 103 10 GIZZARD SHAD 128 20 GIZZARD SHAD 103 9 GIZZARD SHAD 106 10 GIZZARD SHAD 107 10 GIZZARD SHAD 103 11 GIZZARD SHAD 114 16 GIZZARD SHAD 99 9 GIZZARD SHAD 75 3 GIZZARD SHAD 69 3 6ZZARD SHAD 93 B GIZZARD SHAD 71 3 GIZZARD SHAD 106 13 GIZZARD SHAD 109 11 GIZZARD SHAD 89 8 GIZZARD SHAD 70 4 GIZZARD SHAD 68 3 GIZZARD SHAD 84 4 GIZZARD SHAD 61 2 ROCK BASS 106 24 ROCK BASS 73 8

G-5 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 72 7 BLUEGILL 75 . BLUEGILL 54 3 LONGEAR SUNFISH 108 34 SMALLIMOUTH BASS 87 9 SMALLMOUTH BASS 92 10 SMALLNOUTH BASS 102 12 SMALLHOUTH BASS 90 9 SNALLMOUTH BASS 65 4 SMALLMOUTH BASS 74 5 LAR6EMOUTH BASS 170 75 LARGEMOUTH BASS 150 50 LARGEMOUTH BASS 138 32 DATE: 26OCT88 GIZZARD SHAD 1100 GIZZARD SHAD 136 2i 6IZZARD SHAD III 12 GIZZARD SHAD 157 40 GIZZARD SHAD 110 11 GIZZARD SHAD 120 16 GIZZARD SHAD 106 9 GIZZARD SHAD 103 8 GIZZARD SHAD 100 8 GIZZARD SHAD 121 17 GIZZARD SHAD 98 7 GIZZARD SHAD 125 20 GIZZARD SHAD 112 12 GIZZARD SHAD 117 12 GIZZARD SHAD 108 11 GIZZARD SHAD 94 8 GIZZARD SHAD 97 8 6IZZARD SHAD 120 18 GIZZARD SHAD 126 17 GIZZARD SHAD 117 15 GIZZARD SHAD 103 10to GIZZARD SHAD 104 GIZZARD SHAD 73 3 GIZZARD SHAD 97 8 GIZZARD SHAD 119 tO GIZZARD SHAD I10 11 GIZZARD SHAD 81 5 GIZZARD SHAD 115 14 GIZZARD SHAD 86 6 GIZZARD SHAD 60 4 GIZZARD SHAD 67 6 EMERALD SHINER 74 EMERALD SHINER 51 WHITE SUCKER 221 146 ROCK BASS 110 25 ROCK BASS 66 6 LONGEAR SUNFISH 77 9 LON6EAR SUNFISH 83 12 SMALLHOUTH BASS 107 17 SNALLNOUTH BASS 97 10 SNALLMOUTH BASS 79 6 LARGENOUTH BASS 134 35 LARGEMOUTH BASS 183 110 LARGEMOUTH BASS 149 44 LARGEMOUTH BASS 128 26 LARGEMOUTH BASS 134 36 FRESHWATER DRUM 227 150 DATE: 31OCT88 GIZZARD SHAD IBI 55 GIZZARD SHAD 122 15 B GIZZARD SHAD 120 15 GIZZARD SHAD 132 20 GIZZARD SHAD 124 17

G-6 1988-89 BRAIDNOOD STATION IMPINGENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT 61ZZARD SHAD 117 15 GIZZARD SHAD 129 19 GIZZARD SHAD 137 22 GIZZARD SHAD 123 16 GIZZARD SHAD 91 6 GIZZARD SHAD 110 14 GIZZARD SHAD 117 16 GIZZARD SHAD 100 8 GIZZARD SHAD 110 7 GIZZARD SHAD 122 14 GIZZARD SHAD 118 13 GIZZARD SHAD 121 16 GIZZARD SHAD 105 10 GIZZARD SHAD 107 11 GIZZARD SHAD 119 16 GOLDEN SHINER 91 5 FATHEAD MINNOW 79 FATHEAD MINNOW 63 ROCK BASS 86 1 ROCK BASS 66 5 ROCK BASS 60 4 ROCK BASS 72 8 ROCK BASS 74 9 ROCK BASS 79 9 ROCK BASS 75 8 ROCK BASS 64 5 ROCK BASS 93 15 ROCK BASS 67 5 ROCK BASS 70 6 ROCK BASS 102 19 ROCK BASS 71 6 ROCK BASS 68 6 ROCK BASS 79 9 ROCK BASS 68 5 ROCKBASS 68 6 ROCK BASS 62 4 ROCK BASS 62 5 ROCK BASS 79 10 ROCK BASS 71 6 ROCK BASS 61 4 ROCK BASS 63 5 ROCK BASS 65 6 ROCK BASS 66 4 ROCK BASS 60 4 GREEN SUNFISH 105 22 BLUEGILL 77 9 LONGEAR SUNFISH 104 27 LONSEAR SUNFISH 103 27 LONGEAR SUNFISH 95 21 LONGEAR SUNFISH 85 12 SMALLHOUTH BASS 78 5 LARGEMOUTH BASS 126 26 BLACK CRAPPIE 128 28 DATE: 01NOV88 GIZZARD SHAD 102 9 GIZZARD SHAD 107 10 GIZZARD SHAD 122 15 GIZZARD SHAD 110 9 GIZZARD SHAD 105 9 GIZZARD SHAD 96 6 GIZZARD SHAD 106 10 GIZZARD SHAD 122 15 GIZZARD SHAD 115 13 GIZZARD SHAD 113 12 GIZZARD SHAD 110 10 GIZZARD SHAD 76 3 GIZZARD SHAD 69 2 GIZZARD SHAD 59 1 GIZZARD SHAD 110 12

G-7 1988-89 BRAIDHOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT HEIGHT ------o.------...... - --- GIZZARD SHAD 127 17 GIZZARD SHAD 145 24 GIZZARD SHAD 135 20 6ZZARD SHAD 104 10 GIZZARD SHAD 140 23 GIZZARD SHAD 149 25 GIZZARD SHAD 130 20 GIZZARD SHAD 124 17 GIZZARD SHAD 112 12 GIZZARD SHAD 110 12 GIZZARD SHAD 111 12 GIZZARD SHAD 96 7 GIZZARD SHAD 60 3 GIZZARD SHAD 60 3 GIZZARD SHAD 60 3 COMMON CARP 180 105 ROSYFACE SHINER 58 1 BROOK SILVERSIDE 75 1 ROCK BASS 72 6 ROCK BASS 67 6 ROCK BASS 92 10 ROCK BASS 74 7 ROCK BASS 87 13 ROCK BASS 60 3 ROCK BASS 75 7 ROCK BASS 75 8 LONDEAR SUNFISH 114 23 LONGEAR SUNFISH 132 55 LONGEAR SUNFISH 117 31 SHALLMOUTH BASS 91 10 SIALLNOUTH BASS 91 9 DATE: 02NOV89 GIZZARD SHAD 125 GIZZARD SHAD i07 GIZZARD SHAD 100 9 GIZZARD SHAD 65 2 GIZZARD SHAD 107 10 GIZZARD SHAD 76 3 GIZZARD SHAD 135 21 GIZZARD SHAD 118 14 GIZZARD SHAD 107 to GIZZARD SHAD 107 10 GIZZARD SHAD 123 16 GIZZARD SHAD 135 22 GIZZARD SHAD 60 1 GIZZARD SHAD 73 3 GIZZARD SHAD 57 1 GIZZARD SHAD 65 2 GIZZARD SHAD 82 4 GIZZARD SHAD 106 It GIZZARD SHAD 105 6 GIZZARD SHAD l08 12 GIZZARD SHAD 66 2 GIZZARD SHAD 57 1 GIZZARD SHAD 58 1 GIZZARD SHAD 65 2 GIZZARD SHAD 60 1 GIZZARD SHAD 62 1 GIZZARD SHAD 61 I GIZZARD SHAD 65 2 GIZZARD SHAD 50 1 GIZZARD SHAD 61 I GIZZARD SHAD 53 I GIZZARD SHAD 62 i MIMIC SHINER 57 1 FATHEAD MINNOW 63 1 ROCK BASS 105 19 ROCK BASS 94 15 ROCK BASS 62 4

G-8 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT

DATE: 07NOV88 GIZZARD SHAD 23 270 GIZZARD SHAD Il0 13 GIZZARD SHAD 122 15 GIZZARD SHAD 125 16 GIZZARD SHAD 131 22 GIZZARD SHAD 123 15 GIZZARD SHAD 120 14 GIZZARD SHAD 135 24 GIZZARD SHAD 126 16 GIZZARD SHAD 115 14 GIZZARD SHAD 125 16 GIZZARD SHAD 112 12 GIZZARD SHAD 142 25 GIZZARD SHAD 117 13 GIZZARD SHAD 109 10 GIZZARD SHAD 139 20 GIZZARD SHAD 129 17 GIZZARD SHAD 120 14 GIZZARD SHAD 112 12 GIZZARD SHAD I1o to GIZZARD SHAD 115 14 GIZZARD SHAD 131 18 GIZZARD SHAD 136 24 6IZARD SHAD 109 11 GIZZARD SHAD 105 9 GIZZARD SHAD 122 15 GIZZARD SHAD 270 150 GIZZARD SHAD 205 70 GIZZARD SHAD 107 10 GIZZARD SHAD 107 12 GOLDEN SHINER 93 7 ROSYFACE SHINER 65 1 BULLHEAD MINNOW 75 BULLHEAD MINNOW 73 ROCK BASS 175 90 ROCK BASS 71 7 ROCK BASS 68 5 ROCK BASS 65 5 ROCK BASS 71 7 ROCK BASS 61 3 ROCK BASS 77 8 ROCK BASS 67 5 ROCK BASS 67 4 ROCK BASS 61 3 ROCK BASS 64 5 ROCK BASS 55 2 ROCK BASS 70 5 GREEN SUNFISH 109 22 GREEN SUNFISH 115 34 BLUE6ILL 153 100 BLUEGILL 76 7 BLUEGILL 91 9 BLUEGILL 62 2 BLUEGILL 51 1 LONGEAR SUNFISH 96 19 LONGEAR SUNFISH 100 20 LARGEMOUTH BASS 90 9 LARGEMOUTH BASS 153 55 DATE: 08NOV88 GIZZARD SHAD 134 23 GIZZARD SHAD 144 29 GIZZARD SHAD 146 29 GIZZARD SHAD 157 34 GIZZARD SHAD 105 9 GIZZARD SHAD 125 16 GIZZARD SHAD 127 17

G-9 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 113 12 GIZZARD SHAD 74 2 GIZZARD SHAD 70 2 6IZZARD SHAD 53 1 GIZZARD SHAD 66 2 GIZZARD SHAD 129 16 GIZZARD SHAD 114 13 GIZZARD SHAD 63 1 COMMON CARP 549 1910 ROCK BASS 75 6 ROCK BASS 77 7 ROCK BASS 80 8 ROCK BASS tO0 20 GREEN SUNFISH 112 27 LARGENOUTH BASS 146 46 DATE: 09NOV88 GIZZARD SHAD 145 GIZZARD SHAD 141 GIZZARD SHAD 130 GIZZARD SHAD 142 GIZZARD SHAD 136 GIZZARD SHAD 146 GIZZARD SHAD 105 GIZZARD SHAD 151 6IZZARD SHAD 184 6IZZARD SHAD 204 6ZZARD SHAD 156 GIZZARD SHAD 125 6IZZARD SHAD 113 GIZZARD SHAD 146 6ZZARD SHAD 120 GIZZARD SHAD 142 6IZZARD SHAD 137 GIZZARD SHAD 126 GIZZARD SHAD 121 GIZZARD SHAD 110 6IZZARD SHAD 110 GIZZARD SHAD 128 6ZZARD SHAD 113 GIZZARD SHAD 129 GIZZARD SHAD 101 6IZZARD SHAD 127 GIZZARD SHAD 121 GIZZARD SHAD 141 GIZZARD SHAD 112 6IZZARD SHAD 108 6IZZARD SHAD GOLDEN SHINER 110 ROCK BASS 107 ROCK BASS 71 ROCK BASS 71 ROCK BASS 77 ROCK BASS 81 BLUEGILL 165 LON6EAR SUNFISH 94 LONGEAR SUNFISH 126 LAR6ENOUTH BASS 150 DATE: 11NOV89 GIZZARD SHAD 190 50 GIZZARD SHAD 146 29 I GIZZARD SHAD 129 20 GIZZARD SHAD 161 37 I 6IZZARD SHAD 116 14 GIZZARD SHAD III 12 a 6IZZARD SHAD 93 8 I GIZZARD SHAD 106 9 | GIZZARD SHAD 121 17 B

G-1O 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH VEI6HT COUNT VEI6HT GIZZARD SHAD 85 4 GIZZARD SHAD 90 5 GIZZARD SHAD 56 1 GIZZARD SHAD 52 1 GIZZARD SHAD 49 1 GIZZARD SHAD 61 1 GIZZARD SHAD 56 1 GIZZARD SHAD 51 I GIZZARD SHAD 69 2 GIZZARD SHAD 69 2 GIZZARD SHAD 77 2 GIZZARD SHAD 70 2 GOLDEN SHINER 108 12 ROSYFACE SHINER 52 1 YELLOW BULLHEAD 81 6 STONECAT 142 17 ROCK BASS 178 110 ROCK BASS 172 100 ROCK BASS 63 5 ROCK BASS 78 9 ROCK BASS 82 9 ROCK BASS 72 7 ROCK BASS 74 9 ROCK BASS 66 5 ROCK BASS 79 9 ROCK BASS 85 11 ROCK BASS 65 4 ROCK BASS 63 3 ROCK BASS 66 5 BLUEGILL 70 6 LONGEAR SUNFISH 36 1 LONSEAR SUNFISH 45 1 LONGEAR SUNFISH 44 1 LONGEAR SUNFISH 46 1 LONGEAR SUNFISH 51 1 SHALLNOUTH BASS 71 4 SNALLMOUTH BASS 105 17 SNALLNOUTH BASS 83 7 SMALLMOUTH BASS 70 5 SMALLMOUTH BASS 76 7 SMALLMOUTH BASS 57 3 LARGENOUTH BASS 152 49 DATE: 15NOV88 GIZZARD SHAD 103 7 GIZZARD SHAD 128 20 GIZZARD SHAD 122 17 GIZZARD SHAD 103 8 GIZZARD SHAD 102 7 GIZZARD SHAD 92 5 GIZZARD SHAD 96 6 GIZZARD SHAD 125 16 ROSYFACE SHINER 56 YELLOW BULLHEAD 112 18 STONECAT 151 32 ROCK BASS 71 7 ROCK BASS 71 5 ROCK BASS 79 8 ROCK BASS 54 2 ROCK BASS 58 2 GREEN SUNFISH 49 1 ORANGESPOTTED SUNFISH 102 19 LONGEAR SUNFISH 7B B LONGEAR SUNFISH 41 LONGEAR SUNFISH 49 SMALLMOUTH BASS 58 2 LARGENOUTH BASS 142 35 DATE: 16NOV08

G-11 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT HEIGHT GIZZARD SHAD 150 30 GIZZARD SHAD 136 25 GIZZARD SHAD 175 55 GIZZARD SHAD 140 26 GIZZARD SHAD 174 45 GIZZARD SHAD 131 22 GIZZARD SHAD 137 24 GIZZARD SHAD 117 16 GIZZARD SHAD 121 16 GIZZARD SHAD 126 16 GIZZARD SHAD 112 13 GIZZARD SHAD 111 12 GIZZARD SHAD 117 15 GIZZARD SHAD 125 I1 GIZZARD SHAD 112 13 GIZZARD SHAD 109 12 GIZZARD SHAD 172 45 GIZZARD SHAD 132 20 GIZZARD SHAD 116 14 GIZZARD SHAD 123 17 GIZZARD SHAD 144 27 GIZZARD SHAD 113 13 GIZZARD SHAD 131 21 GIZZARD SHAD I1o 11 GIZZARD SHAD 106 II GIZZARD SHAD 103 10 GIZZARD SHAD 77 4 GIZZARD SHAD so 5 GIZZARD SHAD 96 7 GIZZARD SHAD 61 2 COMMON CARP 131 35 STRIPED SHINER 75 STRIPED SHINER 70 STRIPED SHINER 77 12 ROSYFACE SHINER 49 ROSYFACE SHINER 55 2 MIMIC SHINER 56 MIMIC SHINER 51 MIMIC SHINER 51 4 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 86 BLUNTNOSE MINNOW 82 SHORTHEAD REDHORSE 101 12 STONECAT 98 9 STONECAT 158 42 STONECAT 136 21 STONECAT 123 16 BROOK SILVERSIDE 77 2 ROCK BASS 85 12 ROCK BASS 75 9 ROCK BASS 78 to ROCK BASS 68 6 ROCK BASS 78 9 ROCK BASS 70 7 ROCK BASS 70 6 ROCK BASS 61 5 ROCK BASS 72 8 ROCK BASS 52 3 ROCK BASS 56 4 ROCK BASS 57 4 GREEN SUNFISH 97 19 GREEN SUNFISH 140 60 GREEN SUNFISH 46 1 ORANGESPOTTED SUNFISH 70 6 BLUEGILL 131 50 BLUEGILL 163 100 BLUEGILL 151 85 BLUEGILL 110 31 BLUEGILL 58 3 BLUEGILL 51 2 BLUEGILL 52 2

G-12 1988-89 BRAIDHOOD STATION IMPINGEHENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT HEIGHT BLUEGILL 50 2 BLUEGILL 51 2 BLUEGILL 43 1 BLUEGILL 52 2 BLUE6ILL 37 1 BLUEGILL 49 2 BLUEGILL 47 2 BLUEGILL 43 1 BLUEGILL 48 2 BLUEGILL 46 1 BLUEGILL 48 2 BLUEGILL 45 1 BLUEGILL 34 1 LONSEAR SUNFISH 82 12 LONGEAR SUNFISH 58 4 LONGEAR SUNFISH 52 3 LONGEAR SUNFISH 52 3 LONGEAR SUNFISH 3B 1 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 43 1 LOUNEAR SUNFISH 35 1 LON6EAR SUNFISH 45 1 LONGEAR SUNFISH 37 1 SNALLHOUTH BASS 98 12 SNALLNOUTH BASS 90 9 SMALLMDUTH BASS 64 4 SNALLMOUTH BASS 75 3 SNALLHOUTH BASS 62 3 LARGEMOUTH BASS 155 55 LARGENOUTH BASS 138 34 LOSPERCH 95 9 DATE: 21NOV89 GIZZARD SHAD 203 4900 GIZZARD SHAD 13i GIZZARD SHAD 115 GIZZARD SHAD 125 GIZZARD SHAD 117 6IZZARD SHAD 102 GIZZARD SHAD 128 GIZZARD SHAD 105 GIZZARD SHAD 117 GIZZARD SHAD III GIZZARD SHAD 110 6IZZARD SHAD 131 GIZZARD SHAD 112 GIZZARD SHAD 113 GIZZARD SHAD 101 GIZZARD SHAD 91 GIZZARD SHAD 118 GIZZARD SHAD 107 GIZZARD SHAD 122 GIZZARD SHAD 135 GIZZARD SHAD 122 GIZZARD SHAD 112 GIZZARD SHAD 127 GIZZARD SHAD 125 GIZZARD SHAD 113 GIZZARD SHAD 123 GIZZARD SHAD B4 GIZZARD SHAD 96 GIZZARD SHAD 71 GIZZARD SHAD 53 GIZZARD SHAD 48 GIZZARD SHAD 48 GOLDEN SHINER 152 GOLDEN SHINER 168 GOLDEN SHINER 160 164 STRIPED SHINER 76 ROSYFACE SHINER 57

G-13 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROSYFACE SHINER 55 - ROSYFACE SHINER 60 ROSYFACE SHINER 46 MIMIC SHINER 52 MIMIC SHINER 50 BULLHEAD MINNOW 66 BULLHEAD MINNOW 54 SPOTTED SUCKER 97 10 BROWN BULLHEAD 16l 50 STONECAT 143 25 BROOK SILVERSIDE 75 1 ROCK BASS 82 It ROCK BASS 75 1o ROCK BASS 72 8 ROCK BASS 79 11 ROCK BASS B 13 ROCK BASS 74 lI ROCK BASS 71 7 ROCK BASS 57 4 ROCK BASS 72 B ROCK BASS 80 10 ROCK BASS 72 B ROCK BASS 61 5 ROCK BASS 60 5 ROCK BASS 67 7 ROCK BASS 71 7 ROCK BASS 65 6 ROCK BASS 67 6 ROCK BASS 80 1o ROCK BASS 75 8 ROCK BASS 73 9 ROCK BASS 77 9 ROCK BASS 58 4 ROCK BASS 6i 5 ROCK BASS 65 6 ROCK BASS 51 3 ROCK BASS 60 5 ROCK BASS 61 5 ROCK BASS 46 I GREEN SUNFISH 86 14 GREEN SUNFISH 132 50 GREEN SUNFISH 134 55 GREEN SUNFISH 108 27 GREEN SUNFISH 103 24 BLUE61LL 180 120 BLUEGILL 130 55 BLUEGILL 158 80 BLUEGILL 131 50 BLUEGILL 78 7 BLUEGILL 44 1 BLUEGILL 43 1 LONGEAR SUNFISH 104 30 LON6EAR SUNFISH 61 5 LONGEAR SUNFISH 81 8 LONGEAR SUNFISH 81 9 LONGEAR SUNFISH 74 10 UNID LEPOMIS 39 1 UNID LEPOMIS 42 1 UNID LEPONIS 43 1 UNID LEPOMIS 52 3 UNID LEPOMIS 41 1 UNID LEPONIS 35 1 UNID LEPOMIS 38 1 SMALLMOUTH BASS 75 3 SMALLMOUTH BASS 79 5 LARGENOUTH BASS 153 60 LARGEIOUTH BASS 215 155 LAR6EMOUTH BASS 136 37 WHITE CRAPPIE 40 I FRESHWATER DRUM 211 120

G-14 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEI6HT COUNT WEI6HT

GIZZARD SHAD 274 3200 GIZZARD SHAD I13 1i 6IZZARD SHAD 121 18 GIZZARD SHAD 127 21 GIZZARD SHAD 107 11 GIZZARD SHAD 150 31 GIZZARD SHAD 64 3 GIZZARD SHAD 65 3 6IZZARD SHAD 61 3 GIZZARD SHAD 113 13 GIZZARD SHAD 112 13 GIZZARD SHAD 131 23 GIZZARD SHAD I11 13 GIZZARD SHAD 120 18 GIZZARD SHAD 116 15 GIZZARD SHAD 130 19 GIZZARD SHAD 69 4 GIZZARD SHAD 128 21 GIZZARD SHAD 116 14 GIZZARD SHAD 126 19 GIZZARD SHAD 120 17 GIZZARD SHAD 102 12 GIZZARD SHAD 113 14 GIZZARD SHAD 116 14 GIZZARD SHAD 129 15 GIZZARD SHAD 93 8 GIZZARD SHAD 66 3 GIZZARD SHAD 66 3 GIZZARD SHAD 66 3 GIZZARD SHAD 56 2 GIZZARD SHAD 57 2 GIZZARD SHAD 115 13 ROSYFACE SHINER 52 ROSYFACE SHINER 56 ROSYFACE SHINER 53 ROSYFACE SHINER 54 ROSYFACE SHINER 56 7 MIMIC SHINER 51 MIMIC SHINER 44 MIMIC SHINER 52 MIMIC SHINER 54 MIMIC SHINER 61 MIMIC SHINER 50 MIMIC SHINER 46 MIMIC SHINER 49 BULLHEAD MINNOW 3 GOLDEN REDHORSE 76 YELLOW BULLHEAD 96 12 STONECAT 190 60 ROCK BASS 73 10 ROCK BASS 68 7 ROCK BASS 107 27 ROCK BASS 109 26 ROCK BASS 133 40 ROCK BASS 114 35 ROCK BASS 78 11 ROCK BASS 80 12 ROCK BASS 62 5 ROCK BASS 67 7 ROCK BASS 63 5 ROCK BASS 104 26 ROCK BASS 8o 11 ROCK BASS 81 12 ROCK BASS 67 7 ROCK BASS 98 20 GREEN SUNFISH 124 45 BLUEGILL 25 i BLUEGILL 157 90 LONGEAR SUNFISH 121 55

G-15 1908-B9 BRAIDNOOD STATION IMPINGENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT UNID LEPO-IS 38 - UNID LEPORIS 33 1 SHAILNOUTH BASS 103 15 SHALLHOUTH BASS 108 19 SMALLHOUTH BASS 72 5 SMALLHOUTH BASS 87 10 LARGEMOUTH BASS 363 710 LARGEMOUTH BASS 133 33 YELLOW PERCH 124 28 BLACKSIDE DARTER 63 2 BLACKSIDE DARTER 66 3 DATE: 28NOV88 GIZZARD SHAD 320 1800 GIZZARD SHAD 320 220 GIZZARD SHAD 356 470 GIZZARD SHAD 124 18 GIZZARD SHAD 115 14 GIZZARD SHAD 372 550 6GZZARD SHAD 126 21 GIZZARD SHAD 106 12 GIZZARD SHAD 120 16 GIZZARD SHAD 147 27 GIZZARD SHAD 106 10 GIZZARD SHAD 110 1t GIZZARD SHAD 94 7 GIZZARD SHAD 123 18 GIZZARD SHAD 103 10 GIZZARD SHAD 107 13 GIZZARD SHAD 91 6 GIZZARD SHAD 76 3 GIZZARD SHAD 69 2 GIZZARD SHAD 61 2 GIZZARD SHAD 78 4 GIZZARD SHAD 94 8 GIZZARD SHAD 113 13 GIZZARD SHAD 76 4 GIZZARD SHAD 53 1 GIZZARD SHAD 62 2 GIZZARD SHAD 57 I GIZZARD SHAD 63 2 GIZZARD SHAD 66 3 GIZZARD SHAD 65 3 GIZZARD SHAD 133 17 GIZZARD SHAD 58 2 HORNYHEAD CHUB 100 HORNYHEAD CHUB 82 19 GOLDEN SHINER 21 RED 5 SHINER I BLUNTNOSE HINNON A 7 SILVER REDHORSE 126 UNID MOXOSTOHA 61 1 YELLOW BULLHEAD 89 8 YELLOW BULLHEAD 122 27 YELLOW BULLHEAD 96 13 TADPOLE HADTOM 56 2 ROCK BASS 57 3 ROCK BASS 82 11 ROCK BASS 68 6 ROCK BASS 80 10 ROCK BASS 62 5 ROCK BASS 63 5 ROCK BASS 66 5 ROCK BASS 86 15 ROCK BASS 80 10 ROCK BASS 105 25 ROCK BASS 62 10 ROCK BASS 03 14 ROCK BASS 85 13 ROCK BASS 66 5

G-16 1988-89 BRAIDWOOD STATION INPINGENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 65 5 ROCK BASS 61 5 ROCK BASS 64 5 ROCK BASS 59 3 ROCK BASS 79 12 ROCK BASS 106 25 ROCK BASS 75 9 ROCK BASS 69 7 ROCK BASS 73 7 ROCK BASS 103 25 ROCK BASS 82 11 ROCK BASS 99 20 ROCK BASS 81 11 ROCK BASS 93 14 ROCK BASS 77 9 ROCK BASS 12 70 GREEN SUNFISH 12i 37 GREEN SUNFISH 116 35 BLUEGILL 178 120 BLUEGILL 165 100 BLUEGILL 70 6 LONGEAR SUNFISH 122 40 LONGEAR SUNFISH 82 14 LONGEAR SUNFISH 76 9 LONGEAR SUNFISH 115 42 LONGEAR SUNFISH 95 21 LONGEAR SUNFISH 91 16 LONBEAR SUNFISH 77 9 LONGEAR SUNFISH 46 1 LONBEAR SUNFISH 61 4 LONGEAR SUNFISH 58 3 UNID LEPOMIS 40 1 UNID LEPOMIS 38 1 SNALLMOUTH BASS 102 14 SMALLMOUTH BASS 84 8 SMALLMOUTH BASS 78 6 SNALLMOUTH BASS 85 8 LARGENOUTH BASS 132 32 WHITE CRAPPIE 122 22 FRESHWATER DRUN 217 115 DATE: 29NOV88 GIZZARD SHAD 74 1100 GIZZARD SHAD 13i 2i GIZZARD SHAD 110 It GIZZARD SHAD 109 12 6IZZARD SHAD 114 14 61ZZARD SHAD 119 16 GIZZARD SHAD 118 14 61ZZARD SHAD 130 20 6IZZARD SHAD 121 17 GIZZARD SHAD 120 16 GIZZARD SHAD 120 15 GIZZARD SHAD 130 19 GIZZARD SHAD 100 7 GIZZARD SHAD 103 11 GIZZARD SHAD 140 25 GIZZARD SHAD 127 21 GIZZARD SHAD 139 27 GIZZARD SHAD 145 28 GIZZARD SHAD 131 23 GIZZARD SHAD 133 20 GIZZARD SHAD 134 21 GIZZARD SHAD 129 28 GIZZARD SHAD 101 8 GIZZARD SHAD 146 27 GIZZARD SHAD 119 17 GIZZARD SHAD 116 16 GIZZARD SHAD 67 3 GIZZARD SHAD 97 6

G-17 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT 6IZZARD SHAD 73 3 GIZZARD SHAD 44 1 GOLDEN SHINER 84 5 FATHEAD MINNOW £0 1 BROOK SILVERSIDE 73 1 ROCK BASS 179 90 ROCK BASS 38 1 ROCK BASS 63 6 ROCK BASS 74 7 ROCK BASS 71 7 ROCK BASS 65 5 ROCK BASS 63 5 ROCK BASS 56 3 ROCK BASS 45 1 GREEN SUNFISH 110 25 BLUEGILL 61 3 LONGEAR SUNFISH 103 21 LONGEAR SUNFISH 103 26 SMALLMOUTH BASS 93 11 FRESHWATER DRUM 228 140 DATE: 30NOV88 GIZZARD SHAD 150 2300 GIZZARD SHAD 330 380 6IZARD SHAD 330 400 6IZZARD SHAD 270 200 GIZZARD SHAD 361 500 6IZZARD SHAD Ito 14 GIZZARD SHAD 131 21 GIZZARD SHAD 110 12 GIZZARD SHAD 118 17 GIZZARD SHAD 139 27 GIZZARD SHAD 105 11 GIZZARD SHAD 113 14 GIZZARD SHAD 102 9 GIZZARD SHAD 122 15 GIZZARD SHAD 111 13 6IZZARD SHAD 114 15 GIZZARD SHAD 151 30 GIZZARD SHAD 116 15 GIZZARD SHAD 116 15 6IZZARD SHAD 120 16 6ZZARD SHAD 125 18 GIZZARD SHAD 116 15 6IZZARD SHAD 110 12 6IZZARD SHAD i10 13 GIZZARD SHAD 130 21 GIZZARD SHAD 152 32 6IZZARD SHAD 146 35 6IZZARD SHAD 112 14 GIZZARD SHAD 113 13 GIZZARD SHAD 55 1 GIZZARD SHAD 47 1 BLUNTNOSE MINNOW 86 , BLINTNOSE MINNOW 82 15 OUILLBACK 121 24 SILVER REDHORSE 82 7 PIRATE PERCH 75 6 ROCK BASS 71 8 ROCK BASS 75 9 ROCK BASS £2 5 ROCK BASS 103 23 ROCK BASS 55 3 ROCK BASS 76 10 ROCK BASS 65 5 ROCK BASS 63 6 ROCK BASS 60 4 ROCK BASS 55 3 ROCK BASS £0 5 GREEN SUNFISH 121 40

G-18 1908-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT BLUEGILL 139 s0 LONGEAR SUNFISH 85 15 SMAILMOIJTH BASS 78 6 LARGEMOUTH BASS 162 70 DATE: 05DEC88 GIZZARD SHAD 142 2100 GIZZARD SHAD GIZZARD SHAD 96 GIZZARD SHAD 103 GIZZARD SHAD 106 GIZZARD SHAD 161 GIZZARD SHAD 129 GIZZARD SHAD 107 GIZZARD SHAD 101 GIZZARD SHAD 86 GIZZARD SHAD 76 GIZZARD SHAD 132 6ZZARD SHAD 122 GIZZARD SHAD 122 GIZZARD SHAD 115 GIZZARD SHAD 122 GIZZARD SHAD 105 GIZZARD SHAD 80 GIZZARD SHAD 70 GIZZARD SHAD 61 GIZZARD SHAD 62 GIZZARD SHAD 57 GIZZARD SHAD 69 GIZZARD SHAD 70 GIZZARD SHAD 66 GIZZARD SHAD 75 GIZZARD SHAD 67 GIZZARD SHAD 61 GIZZARD SHAD 51 GIZZARD SHAD 60 GIZZARD SHAD 120 GIZZARD SHAD 79 GIZZARD SHAD 70 HORNYHEAD CHUB 66 HORNYHEAD CHUB 76 STRIPED SHINER 61 ROSYFACE SHINER 47 ROSYFACE SHINER 57 SAND SHINER 70 MIMIC SHINER 47 MIMIC SHINER 71 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 77 BLUNTNOSE MINNOW 81 BLUNTNOSE MINNOW 77 BLUNTNOSE MINNOW 77 33 SHORTHEAD REDHORSE 103 STONECAT 125 ROCK BASS 88 ROCK BASS 76 ROCK BASS 79 ROCK BASS 56 ROCK BASS 65 ROCK BASS 65 ROCK BASS 61 ROCK BASS 58 ROCK BASS 56 ROCK BASS 56 ROCK BASS 62 ROCK BASS 65 ROCK BASS 65 ROCK BASS 60 ROCK BASS 66

G-19 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT NEI6HT ROCK BASS 53 2 ROCK BASS 66 5 ROCK BASS 63 4 ROCK BASS 62 5 ROCK BASS 56 3 ROCK BASS 57 3 ROCK BASS 56 2 ROCK BASS 60 3 ROCK BASS 61 3 ROCK BASS 59 3 ROCK BASS 56 2 ROCK BASS 42 2 ROCK BASS 63 3 BLUEGILL 96 15 BLUESILL 62 4 BLUEGILL 45 1 LONGEAR SUNFISH 90 15 LONGEAR SUNFISH 82 12 LONGEAR SUNFISH 91 14 LONGEAR SUNFISH 74 7 LONGEAR SUNFISH 63 5 UNID LEPORIS 46 1 UNID LEPONIS 47 1 UNID LEPOMIS 42 1 UNID LEPONIS 36 1 SNALLMOUTH BASS 87 8 SMALLMOUTH BASS 82 7 SMALLMOUTH BASS 91 9 SNALLMOUTH BASS 93 9 LARGENOUTH BASS 121 22 LARGEMOUTH BASS 130 28 DATE: 06DEC8B GIZZARD SHAD I11 GIZZARD SHAD 124 GIZZARD SHAD 136 GIZZARD SHAD 134 GIZZARD SHAD 101 GIZZARD SHAD 106 GIZZARD SHAD 102 GIZZARD SHAD 92 GIZZARD SHAD 117 GIZZARD SHAD III GIZZARD SHAD 75 GIZZARD SHAD 65 GIZZARD SHAD 113 GIZZARD SHAD 129 GIZZARD SHAD 82 GIZZARD SHAD 127 6IZZARD SHAD 74 GIZZARD SHAD 120 GIZZARD SHAD 122 GIZZARD SHAD 113 GIZZARD SHAD 100 GIZZARD SHAD 91 GIZZARD SHAD 106 GIZZARD SHAD 72 GIZZARD SHAD 63 GIZZARD SHAD 71 GIZZARD SHAD 71 GIZZARD SHAD 61 GIZZARD SHAD 51 6IZZARD SHAD 57 GIZZARD SHAD 61 GIZZARD SHAD lO1 GIZZARD SHAD 89 BULLHEAD MINNOW 67 BULLHEAD MINNOW 53 CHANNEL CATFISH 61 BROOK SILVERSIDE 72

G-20 1989-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT ------..------.-. ------...... -- -- ROCK BASS 80 to ROCK BASS 66 5 ROCK BASS 70 7 ROCK BASS 60 3 ROCK BASS 75 8 ROCK BASS 63 5 ROCK BASS 60 3 ROCK BASS 52 2 ORAN6ESPOTTED SUNFISH 105 25 LONGEAR SUNFISH 101 24 SHALLNOUTH BASS 75 5 WHITE CRAPPIE 114 15 DATE: 07DEC88 GIZZARD SHAD 105 10 GIZZARD SHAD 141 28 GIZZARD SHAD 105 8 GIZZARD SHAD 97 7 GIZZARD SHAD 71 3 GIZZARD SHAD 55 1 GIZZARD SHAD 63 2 GIZZARD SHAD 109 11 GIZZARD SHAD 153 37 GIZZARD SHAD 130 29 GIZZARD SHAD 118 18 GIZZARD SHAD 117 14 GIZZARD SHAD 117 11 GIZZARD SHAD 127 18 GIZZARD SHAD 103 10 GIZZARD SHAD 83 GIZZARD SHAD 73 3 GIZZARD SHAD 71 GIZZARD SHAD 63 2 GIZZARD SHAD 59 2 STRIPED SHINER 50 1 SPOTFIN SHINER 79 5 FATHEAD MINNOW 62 2 BULLHEAD MINNOW 59 1 ROCK BASS 60 4 ROCK BASS 65 7 ROCK BASS 76 9 LONGEAR SUNFISH 76 10 SNALLMOUTH BASS 101 14 DATE: 12DEC88 GIZZARD SHAD 330 320 GIZZARD SHAD 113 14 GIZZARD SHAD 133 21 6IZZARD SHAD 120 14 GIZZARD SHAD 93 6 GIZZARD SHAD 116 16 GIZZARD SHAD 124 20 GIZZARD SHAD 116 15 GIZZARD SHAD 130 22 GIZZARD SHAD 124 17 GIZZARD SHAD 121 12 GIZZARD SHAD 118 13 GIZZARD SHAD 105 10 6IZZARD SHAD 122 1• GIZZARD SHAD 73 3 GIZZARD SHAD 65 2 SMALLMOUTH BUFFALO 200 140 ROCK BASS 78 to ROCK BASS 61 4 ROCK BASS 72 8 ROCK BASS 74 B ROCK BASS 56 4 ROCK BASS 53 3 ROCK BASS 42 1

G-21 198B-B9 BRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT LARGENOUTH BASS III 18 DATE: 13DEC88 GIZZARD SHAD 337 335 GIZZARD SHAD 227 120 GIZZARD SHAD GIZZARD SHAD 122 ii GIZZARD SHAD 122 16 GIZZARD SHAD 73 3 6IZZARD SHAD 116 14 GIZZARD SHAD 112 12 GIZZARD SHAD 131 19 GIZZARD SHAD 106 12 GIZZARD SHAD 116 12 GIZZARD SHAD 107 II GIZZARD SHAD 77 4 GIZZARD SHAD 80 4 GIZZARD SHAD 96 9 GIZZARD SHAD 115 12 GIZZARD SHAD 115 13 GIZZARD SHAD 81 5 GIZZARD SHAD 73 3 GIZZARD SHAD 124 14 GIZZARD SHAD 97 8 GIZZARD SHAD 75 3 GIZZARD SHAD 67 2 GIZZARD SHAD 91 6 GIZZARD SHAD 69 2 GIZZARD SHAD 87 5 GIZZARD SHAD 100 7 GIZZARD SHAD 71 3 GIZZARD SHAD 62 2 GIZZARD SHAD 71 2 GIZZARD SHAD 71 3 MIMIC SHINER 41 MIMIC SHINER 46 BLUNTNOSE MINNOW 75 BLUNTNOSE MINNOW 6i1 SHORTHEAD REDHORSE 113 14 ROCK BASS B 12 ROCK BASS 66 5 ROCK BASS 73 6 ROCK BASS 76 9 ROCK BASS 74 8 ROCK BASS 73 8 ROCK BASS 69 5 ROCK BASS 65 5 ROCK BASS 65 5 ROCK BASS 62 4 ORAN6ESPOTTED SUNFISH 68 6 LONGEAR SUNFISH 85 12 LONGEAR SUNFISH 105 24 LONGEAR SUNFISH 83 12 UNID LEPONIS 41 1 SNALLHOUTH BASS 90 9 DATE: 14DEC8B GIZZARD SHAD 52 420 GIZZARD SHAD 122 16 GIZZARD SHAD 132 22 GIZZARD SHAD I1o 12 GIZZARD SHAD 116 16 6ZZARD SHAD 120 17 GIZZARD SHAD 133 27 GIZZARD SHAD 70 4 GIZZARD SHAD 74 4 GIZZARD SHAD 62 3 GIZZARD SHAD 71 4 GIZZARD SHAD 70 4

G-22 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT HEIGHT GIZZARD SHAD 57 2 GIZZARD SHAD 75 5 GIZZARD SHAD 69 4 GIZZARD SHAD 71 4 GIZZARD SHAD 65 4 GIZZARD SHAD 65 4 GIZZARD SHAD 62 3 GIZZARD SHAD 71 4 GIZZARD SHAD 77 5 GIZZARD SHAD 73 4 GIZZARD SHAD 82 6 GIZZARD SHAD 92 5 GIZZARD SHAD 66 3 GIZZARD SHAD 66 3 GIZZARD SHAD 62 3 GIZZARD SHAD 66 3 GIZZARD SHAD 71 4 GIZZARD SHAD 61 3 GOLDEN SHINER 96 9 MIMIC SHINER 58 2 FATHEAD MINNOW 62 3 BULLHEAD MINNOW 58 BULLHEAD MINNOW 58 SHORTHEAD REDHORSE 110 15 CHANNEL CATFISH 66 3 BROOK SILVERSIDE 72 2 ROCK BASS 69 9 ROCK BASS 72 8 ROCK BASS 73 10 ROCK BASS 80 11 ROCK BASS 72 9 ORANGESPOTTED SUNFISH 04 13 SMALLNOUTH BASS 112 20 SMALLMOUTH BASS 97 10 DATE: 19DEC88 GIZZARD SHAD 194 2100 GIZZARD SHAD 33i 40i GIZZARD SHAD 403 670 GIZZARD SHAD 114 13 6IZZARD SHAD 120 15 GIZZARD SHAD 136 22 GIZZARD SHAD 95 7 GIZZARD SHAD 165 36 GIZZARD SHAD 120 15 GIZZARD SHAD 173 43 GIZZARD SHAD 115 11 GIZZARD SHAD 96 7 GIZZARD SHAD 71 3 GIZZARD SHAD 76 3 GIZZARD SHAD 119 16 GIZZARD SHAD 126 16 6IZZARD SHAD 134 20 GIZZARD SHAD 122 16 GIZZARD SHAD 125 17 GIZZARD SHAD 83 5 GIZZARD SHAD 72 3 GIZZARD SHAD 80 5 GIZZARD SHAD 74 4 GIZZARD SHAD 120 15 GIZZARD SHAD 67 4 GIZZARD SHAD 63 3 GIZZARD SHAD 75 4 GIZZARD SHAD 80 5 GIZZARD SHAD 71 4 GIZZARD SHAD s0 5 GIZZARD SHAD 6B 4 GOLDEN SHINER 153 GOLDEN SHINER 94 60 SAND SHINER 58

G-23 1988-89 BRAIDNOOD STATION INPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT BLUNTNOSE MINNOW 73 BLUNTNOSE MINNON 78 BLUNTNOSE MINNOW 72 SNALLHOUTH BUFFALO 167 10 SILVER REDHORSE 217 120 GOLDEN REDHORSE 122 21 SHORTHEAD REDHORSE 103 11 SHORTHEAD REDHORSE 112 14 SHORTHEAD REDHORSE 106 12 ROCK BASS 115 30 ROCK BASS 85 12 ROCK BASS 71 6 ROCK BASS 76 8 ROCK BASS 71 7 ROCK BASS 78 8 ROCK BASS 153 65 ROCK BASS 196 t1o ROCK BASS 83 1o ROCK BASS 81 1o ROCK BASS 73 7 ROCK BASS 82 9 ROCK BASS 79 9 ROCK BASS 72 7 ROCK BASS 59 4 ROCK BASS 80 7 ROCK BASS 68 6 ROCK BASS 68 6 ROCK BASS 65 5 ROCK BASS 77 8 ROCK BASS 66 5 ROCK BASS 41 1 ROCK BASS 113 27 ROCK BASS 114 28 ROCK BASS 58 6 ROCK BASS 67 6 ROCK BASS 63 5 ROCK BASS 48 2 ROCK BASS 87 12 ROCK BASS 77 9 ROCK BASS ii 6i GREEN SUNFISH 133 50 GREEN SUNFISH 91 20 GREEN SUNFISH 151 70 GREEN SUNFISH 143 65 GREEN SUNFISH 115 29 GREEN SUNFISH 120 32 GREEN SUNFISH 81 10 LONGEAR SUNFISH 107 28 LONGEAR SUNFISH 108 32 LONGEAR SUNFISH 116 36 LONGEAR SUNFISH 96 18 LONGEAR SUNFISH 93 16 LONGEAR SUNFISH 77 9 LONSEAR SUNFISH 56 3 LONGEAR SUNFISH 51 2 LONGEAR SUNFISH 45 1 LONGEAR SUNFISH 43 1 SMALLIOUTH BASS 91 9 LARGEMOUTH BASS 187 90 BLACK CRAPPIE 265 300 DATE: 21DECB8 GIZZARD SHAD 651 3700 GIZZARD SHAD GIZZARD SHAD 84 6 GIZZARD SHAD 102 9 GIZZARD SHAD 92 8 GIZZARD SHAD 116 14 GIZZARD SHAD 70 4 GIZZARD SHAD 80 5

G-24 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 67 3 GIZZARD SHAD 68 4 GIZZARD SHAD 71 4 GIZZARD SHAD 85 6 GIZZARD SHAD 79 5 GIZZARD SHAD 75 5 GIZZARD SHAD 72 4 GIZZARD SHAD 63 3 GIZZARD SHAD 106 12 GIZZARD SHAD 113 15 GIZZARD SHAD 82 5 GIZZARD SHAD 74 4 GIZZARD SHAD 77 5 GIZZARD SHAD 68 4 GIZZARD SHAD 70 4 GIZZARD SHAD 65 4 GIZZARD SHAD 77 5 GIZZARD SHAD 63 3 GIZZARD SHAD 65 3 GIZZARD SHAD 58 3 GIZZARD SHAD 58 3 GIZZARD SHAD 67 3 CONMON CARP 251 240 HORNYHEAD CHUB 59 3 BLUNTNOSE MINNOW 76 BLUNTNOSE MINNOW 75 SMALLMOUTH BUFFALO 171 65 ROCK BASS 76 11 ROCK BASS 70 7 ROCK BASS 77 10 ROCK BASS 82 13 ROCK BASS 75 9 ROCK BASS 62 6 ROCK BASS 76 9 ROCK BASS 82 11 ROCK BASS 74 8 ROCK BASS 72 8 ROCK BASS 53 4 ROCK BASS 81 II ROCK BASS 64 6 ROCK BASS 70 7 ROCK BASS 72 8 ROCK BASS 56 4 ROCK BASS 53 3 LONGEAR SUNFISH 56 4 LONGEAR SUNFISH 40 1 SMALLMOUTH BASS 93 I1 SMALLMOUTH BASS 75 7 DATE: 26DEC88 GIZZARD SHAD 2542 12500 GIZZARD SHAD Il2 GIZZARD SHAD 79 5 GIZZARD SHAD 84 6 GIZZARD SHAD 77 4 GIZZARD SHAD 74 5 GIZZARD SHAD 74 4 GIZZARD SHAD 77 4 GIZZARD SHAD 70 3 GIZZARD SHAD 69 3 GIZZARD SHAD 91 7 GIZZARD SHAD 77 5 GIZZARD SHAD 66 3 GIZZARD SHAD 72 4 GIZZARD SHAD 77 5 GIZZARD SHAD 66 3 GIZZARD SHAD 70 4 GIZZARD SHAD 67 3 GIZZARD SHAD 70 4 GIZZARD SHAD 66 3

G-25 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ------ZAR------SHAD 82---- 5-----...... -- GIZZARD SHAD 82 5 GIZZARD SHAD 75 4 GIZZARD SHAD 78 5 GIZZARD SHAD 66 3 GIZZARD SHAD 76 3 GIZZARD SHAD 71 4 GIZZARD SHAD 81 5 GIZZARD SHAD 66 3 GIZZARD SHAD 63 3 GIZZARD SHADSHAD 6467 43 COMMON CARP 250 290 HORNYHEAD CHUB 76 6 ROSYFACE SHINER 65 ROSYFACE SHINER 54 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 59 ROSYFACE SHINER 61 ROSYFACE SHINER 56 10 MIMIC SHINER 52 2 BROOK SILVERSIDE 73 BROOK SILVERSIDE 75 ROCK BASS 76 10 ROCK BASS 71 7 ROCK BASS 63 5 ROCK BASS 72 8 ROCK BASS 74 7 ROCK BASS 61 5 ROCK BASS 70 5 ROCK BASS 61 5 ORAN6ESPOTTED SUNFISH 76 9 LONGEAR SUNFISH 53 3 SMALLNOUTH BASS 115 19 SMALLMOUTH BASS 98 II DATE: 27DECBB GIZZARD SHAD 1096 5500 GIZZARD SHAD GIZZARD SHAD 128 23 GIZZARD SHAD 72 4 GIZZARD SHAD 71 3 GIZZARD SHAD 72 4 GIZZARD SHAD 81 5 GIZZARD SHAD 110 12 GIZZARD SHAD 80 5 GIZZARD SHAD 76 4 GIZZARD SHAD 67 2 GIZZARD SHAD 94 8 6IZZARD SHAD 78 4 GIZZARD SHAD 69 2 GIZZARD SHAD 98 8 GIZZARD SHAD 86 5 GIZZARD SHAD 62 3 GIZZARD SHAD 71 3 6IZZARD SHAD 66 3 GIZZARD SHAD 77 5 GIZZARD SHAD 65 3 GIZZARD SHAD 72 4 GIZZARD SHAD 72 3 GIZZARD SHAD 73 3 GIZZARD SHAD BO 5 GIZZARD SHAD 73 4 GIZZARD SHAD 71 4 GIZZARD SHAD 76 4 GIZZARD SHAD 62 2 GIZZARD SHAD 57 2 GIZZARD SHAD 67 6 FATHEAD MINNOW 67 2 SHORTHEAD REDHORSE 71 3

G-26 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT LONDEAR SUNFISH 99 21 DATE: 28DECO8 GIZZARD SHAD 1029 6500 GIZZARD SHAD 92 7 GIZZARD SHAD 110 12 GIZZARD SHAD 92 7 GIZZARD SHAD 105 10 GIZZARD SHAD 90 6 GIZZARD SHAD 71 3 GIZZARD SHAD 89 6 GIZZARD SHAD 97 6 GIZZARD SHAD 77 4 GIZZARD SHAD 82 5 GIZZARD SHAD 75 5 GIZZARD SHAD 70 4 GIZZARD SHAD 68 4 GIZZARD SHAD 65 3 GIZZARD SHAD 71 4 GIZZARD SHAD 65 3 GIZZARD SHAD 72 3 GIZZARD SHAD 5i 3 GIZZARD SHAD 75 4 GIZZARD SHAD 71 3 GIZZARD SHAD 69 3 GIZZARD SHAD 72 3 GIZZARD SHAD 113 14 GIZZARD SHAD 72 4 GIZZARD SHAD 74 4 GIZZARD SHAD 70 3 GIZZARD SHAD 65 2 GIZZARD SHAD 72 4 GIZZARD SHAD 64 3 GIZZARD SHAD 71 4 ROSYFACE SHINER 60 ROSYFACE SHINER 62 ROSYFACE SHINER 57 SPOTFIN SHINER 53 i BROOK SILVERSIDE 82 2 ROCK BASS 120 29 ROCK BASS 76 9 ROCK BASS 113 28 ROCK BASS 77 10 ROCK BASS 73 7 ROCK BASS 67 6 ROCK BASS 81 9 ROCK BASS 80 10 ROCK BASS 95 17 ROCK BASS 71 6 ROCK BASS 61 4 ROCK BASS 51 2 ROCK BASS 64 5 ROCK BASS 65 5 ROCK BASS 78 10 ROCK BASS 85 11 ROCK BASS 46 1 GREEN SUNFISH 94 14 GREEN SUNFISH 82 10 BLUEGILL 34 1 LONGEAR SUNFISH 112 31 SNALLHOUTH BASS 116 16 SMALLNOUTH BASS 93 9 SHALLMOUTH BASS 78 6 SMALLNOUTH BASS 69 4 DATE: 02JAN89 GIZZARD SHAD 342 1700 GIZZARD SHAD 7i 4 GIZZARD SHAD 85 6

G-27 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT --ZZARD SHAD -36 20 GIZZARD SHAD 143 26 GIZZARD SHAD 103 20 GIZZARD SHAD 96 7 GIZZARD SHAD 102 9 6IZZARD SHAD 76 4 61ZZARD SHAD 76 3 GIZZARD SHAD 87 7 GIZZARD SHAD 82 5 GIZZARD SHAD 105 10 GIZZARD SHAD 77 5 GIZZARD SHAD 80 5 GIZZARD SHAD 65 3 GIZZARD SHAD 91 7 GIZZARD SHAD 70 3 GIZZARD SHAD 71 3 6IZZARD SHAD 87 6 GIZZARD SHAD 114 12 GIZZARD SHAD 86 6 GIZZARD SHAD 73 4 GIZZARD SHAD 82 5 6IZZARD SHAD B3 5 GIZZARD SHAD 87 6 GIZZARD SHAD 67 3 GIZZARD SHAD 82 5 GIZZARD SHAD 72 3 GIZZARD SHAD 72 3 BULLHEAD MINNOW 72 4 ROCK BASS 79 9 ROCK BASS 71 7 ROCK BASS 59 2 GREEN SUNFISH 95 16 SMALLMOUTH BASS 74 5 SMALLMOUTH BASS 113 15 SMALLMOUTH BASS 115 19 SNALLMOUTH BASS 97 12 YELLOW PERCH 120 21 DATE: 03JAN89 GIZZARD SHAD 320 320 GIZZARD SHAD 450 4506 GIZZARD SHAD 92 GIZZARD SHAD 155 32 GIZZARD SHAD 113 15 GIZZARD SHAD 112 13 GIZZARD SHAD 119 16 GIZZARD SHAD 80 6 GIZZARD SHAD 103 10 GIZZARD SHAD li1 16 GIZZARD SHAD 92 7 GIZZARD SHAD 120 16 6ZZARD SHAD 115 13 GIZZARD SHAD 146 27 6IZZARD SHAD 102 9 61ZZARD SHAD 83 5 GIZZARD SHAD 82 5 GIZZARD SHAD 86 6 6IZZARD SHAD 90 6 6IZZARD SHAD 85 6 GIZZARD SHAD 102 I1 GIZZARD SHAD 72 3 6ZZARD SHAD 63 3 6IZZARD SHAD 82 5 6ZZARD SHAD 102 9 GIZZARD SHAD 135 20 GIZZARD SHAD 122 16 GIZZARD SHAD 94 8 GIZZARD SHAD 105 10 GIZZARD SHAD 83 6 GIZZARD SHAD 71 3

G-28 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH #EIGHT COUNT WEI6HT HORNYHEAD CHUB 69 . HORNYHEAD CHUB 6185 OUILLBACK 114 17 RIVER REDHORSE 465 1680 SHORTHEAD REDHORSE 106 13 SHORTHEAD REDHORSE 108 12 ROCK BASS 190 125 ROCK BASS 188 125 ROCK BASS 99 18 ROCK BASS 83 10 ROCK BASS 69 7 ROCK BASS 91 10 ROCK BASS 74 a ROCK BASS 82 10 ROCK BASS 74 8 ROCK BASS 64 5 ROCK BASS 81 II ROCK BASS 68 6 ROCK BASS 73 7 ROCK BASS 91 15 ROCK BASS 85 11 ROCK BASS 77 B ROCK BASS 80 9 ROCK BASS 69 5 ROCK BASS 61 4 ROCK BASS 61 4 ROCK BASS 73 7 ROCK BASS 69 6 ROCK BASS 85 13 ROCK BASS 71 6 ROCK BASS 63 5 ROCK BASS 50 2 ROCK BASS 55 3 ROCK BASS 70 6 ROCK BASS 74 a ROCK BASS 69 6 LONGEAR SUNFISH 114 37 SNALLNOUTH BASS 81 6 SNALLNOUTH BASS 113 15 SMALLMOUTH BASS 103 13 SMALLMOUTH BASS 104 13 SNALLNOUTH BASS 87 B SNALLNOUTH BASS 66 4 LO6PERCH 95 7 BLACKSIDE DARTER 72 4 DATE: 04JAN89 GIZZARD SHAD 150 1100 GIZZARD SHAD 86 ,i GIZZARD SHAD 117 12 GIZZARD SHAD 120 14 6IZZARD SHAD 112 12 GIZZARD SHAD 121 17 GIZZARD SHAD 113 12 GIZZARD SHAD 62 2 GIZZARD SHAD 90 7 GIZZARD SHAD 63 2 GIZZARD SHAD 64 3 GIZZARD SHAD 63 2 GIZZARD SHAD 97 7 GIZZARD SHAD 113 13 GIZZARD SHAD 74 3 GIZZARD SHAD 89 7 GIZZARD SHAD 81 5 GIZZARD SHAD 66 2 GIZZARD SHAD 97 7 GIZZARD SHAD 76 4 GIZZARD SHAD 75 3 GIZZARD SHAD 71 3 GIZZARD SHAD 72 3

G-29 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 76 4 GIZZARD SHAD 79 3 6IZZARD SHAD 63 2 GIZZARD SHAD 60 2 GIZZARD SHAD 70 2 GIZZARD SHAD 64 2 GIZZARD SHAD 65 2 BLUNTNOSE MINNOW 77 4 BULLHEAD MINNOW 57 BULLHEAD MINNOW f1i SILVER REDHORSE 117 18 SHORTHEAD REDHORSE 123 19 SHORTHEAD REDHORSE 112 14 SHORTHEAD REDHORSE 128 21 SHORTHEAD REDHORSE 113 15 SHORTHEAD REDHORSE 124 20 SHORTHEAD REDHORSE 133 24 SHORTHEAD REDHORSE 112 12 SHORTHEAD REDHORSE 120 17 SHORTHEAD REDHORSE 116 13 ROCK BASS 61 4 ROCK BASS 68 6 ROCK BASS 74 8 ROCK BASS 57 4 ROCK BASS 114 29 ROCK BASS 75 8 ROCK BASS 61 4 ROCK BASS 69 6 ROCK BASS 76 8 ROCK BASS 63 5 ROCK BASS 74 8 ROCK BASS 79 9 ROCK BASS 69 6 ROCK BASS 66 5 ROCK BASS 70 6 ROCK BASS 66 5 ROCK BASS 54 3 ROCK BASS 74 9 ROCK BASS 76 8 ROCK BASS 71 6 ROCK BASS 72 6 ROCK BASS 68 6 ROCK BASS 80 II ROCK BASS 66 6 ROCK BASS 57 3 ROCK BASS 83 11 ROCK BASS 66 6 ROCK BASS 79 8 ROCK BASS 56 3 ROCK BASS 71 8 ROCK BASS 63 5 ROCK BASS 3i GREEN SUNFISH 138 55 LON6EAR SUNFISH 94 20 LONGEAR SUNFISH 106 29 LONGEAR SUNFISH 51 2 LONGEAR SUNFISH 92 17 SMALLMOUTH BASS 113 17 SMALLMOUTH BASS 94 8 SMALLMOUTH BASS 119 15 SMALLMOUTH BASS 75 5 SMALLHOUTH BASS 84 7 SMALLMOUTH BASS 92 10 SMALLHOUTH BASS 78 6 SMALLMOUTH BASS 78 6 BLACKSIDE DARTER 61 2 DATE: 09JAN89

G-30 1988-89 DRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 804 8000 GIZZARD SHAD 122 15 GIZZARD SHAD 125 16 GIZZARD SHAD 103 10 GIZZARD SHAD 110 1I GIZZARD SHAD 97 10 GIZZARD SHAD 99 9 GIZZARD SHAD 90 7 GIZZARD SHAD 80 5 6IZZARD SHAD 117 12 GIZZARD SHAD 82 5 GIZZARD SHAD 82 5 GIZZARD SHAD 98 9 GIZZARD SHAD 106 12 GIZZARD SHAD 120 17 GIZZARD SHAD 106 11 GIZZARD SHAD 105 9 GIZZARD SHAD 97 8 GIZZARD SHAD 109 11 GIZZARD SHAD 110 13 GIZZARD SHAD 72 5 6IZZARD SHAD 107 11 GIZZARD SHAD 96 8 GIZZARD SHAD 110 13 GIZZARD SHAD 92 8 GIZZARD SHAD 90 7 GIZZARD SHAD 89 7 GIZZARD SHAD 94 8 GIZZARD SHAD 113 14 GIZZARD SHAD 121 16 GIZZARD SHAD 72 4 GIZZARD SHAD 73 4 HORNYHEAD CHUB 77 5 RED SHINER 75 5 ROSYFACE SHINER 64 ROSYFACE SHINER 60 ROSYFACE SHINER 57 ROSYFACE SHINER 61 ROSYFACE SHINER 54 ROSYFACE SHINER 65 ROSYFACE SHINER 65 ROSYFACE SHINER 65 ROSYFACE SHINER 57 ROSYFACE SHINER 58 ROSYFACE SHINER 58 ROSYFACE SHINER 54 ROSYFACE SHINER 56 ROSYFACE SHINER 60 ROSYFACE SHINER 58 20 SPOTFIN SHINER 66 SPOTFIN SHINER 67 SAND SHINER 61 SAND SHINER 69 MIMIC SHINER 49 SUCKERMOUTH MINNOW 72 5 OUILLBACK 130 28 GUILLBACK 132 28 QUILLDACK 142 35 SILVER REDHORSE 96 12 SILVER REDHORSE 82 7 SHORTHEAD REDHORSE 93 9 SHORTHEAD REDHORSE 126 18 SHORTHEAD REDHORSE 115 16 SHORTHEAD REDHORSE 110 15 SHORTHEAD REDHORSE 108 14 SHORTHEAD REDHORSE 104 13 SHORTHEAD REDHORSE 125 23 SHORTHEAD REDHORSE 61 3 SHORTHEAD REDHORSE 122 19 SHORTHEAD REDHORSE 91 7 STONECAT 104 10

G-31 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH WEI6HT COUNT WEIGHT -ROOK SILVERSI-E 60 , , BROOK SILVERSIDE 82 BROOK SILVERSIDE 67 BROOK SILVERSIDE 62 BROOK SILVERSIDE 61 I2 ROCK BASS 195 155 ROCK BASS 125 40 ROCK BASS 72 7 ROCK BASS 66 6 ROCK BASS 84 13 ROCK BASS 71 7 ROCK BASS 81 11 ROCK BASS 82 11 ROCK BASS 70 7 ROCK BASS 78 9 ROCK BASS 73 8 ROCK BASS 71 7 ROCK BASS 61 5 ROCK BASS 75 9 ROCK BASS 80 10 ROCK BASS 71 7 ROCK BASS 64 6 ROCK BASS 84 13 ROCK BASS 69 7 ROCK BASS 61 5 ROCK BASS 55 4 ROCK BASS 39 1 ROCK BASS 43 1 ROCK BASS 45 2 ROCK BASS 45 2 ROCK BASS 46 2 ROCK BASS 42 1 ROCK BASS 45 2 GREEN SUNFISH 112 34 GREEN SUNFISH 124 47 ORAN6ESPOTTED SUNFISH 74 a LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 117 39 LONGEAR SUNFISH 84 13 LONGEAR SUNFISH 72 9 LONGEAR SUNFISH 72 9 LONGEAR SUNFISH 56 4 SMALLHOUTH BASS 84 8 SMALLMOUTH BASS 71 5 SMALLOUTH BASS 101 13 SNALLMOUTH BASS 77 7 SMALLMOUTH BASS 69 4 SHALLMOUTH BASS 91 10 SMALLMOUTH BASS 92 12 SMALLMOUTH BASS 115 19 SMALLNOUTH BASS 71 5 SMALLMOUTH BASS 107 15 SMALLMOUTH BASS 81 6 SNALLIOUTH BASS 80 6 SMALLNOUTH BASS 63 4 SMALLMOUTH BASS 72 5 DATE: 11JAN89 GIZZARD SHAD 536 5900 GIZZARD SHAD Ii GIZZARD SHAD 134 20 GIZZARD SHAD 115 13 GIZZARD SHAD 106 11 GIZZARD SHAD 103 to GIZZARD SHAD 122 16 GIZZARD SHAD 122 17 6IZZARD SHAD 99 9 GIZZARD SHAD 77 4 GIZZARD SHAD 95 6 GIZZARD SHAD 82 5

G-32 1988-89 DBRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT GIZZARD SHAD 120 16 GIZZARD SHAD 110 11 GIZZARD SHAD 130 19 GIZZARD SHAD 122 15 GIZZARD SHAD 117 17 GIZZARD SHAD 125 18 GIZZARD SHAD 105 10 GIZZARD SHAD 95 7 GIZZARD SHAD 96 8 GIZZARD SHAD 99 8 GIZZARD SHAD 90 7 GIZZARD SHAD 118 16 GIZZARD SHAD 128 19 GIZZARD SHAD 104 10 GIZZARD SHAD 99 10 GIZZARD SHAD 103 9 GIZZARD SHAD 102 9 GIZZARD SHAD 92 7 GIZZARD SHAD 80 6 ROSYFACE SHINER 52 ROSYFACE SHINER 61 ROSYFACE SHINER 57 ROSYFACE SHINER 57 ROSYFACE SHINER 58 ROSYFACE SHINER 65 MIMIC SHINER 48 MIMIC SHINER 47 MIMIC SHINER 53 MIMIC SHINER 56 BLUNTNOSE MINNOW 81 BLUNTNOSE MINNOW 77 BLUNTNOSE NINNOW 84 15 SILVER REDHORSE 92 9 SILVER REDHORSE 103 13 SHORTHEAD REDHORSE 126 22 SHORTHEAD REDHORSE 115 16 SHORTHEAD REDHORSE 117 18 SHORTHEAD REDHORSE 126 21 BLACK BULLHEAD 110 16 BROWN BULLHEAD 107 15 CHANNEL CATFISH 71 4 CHANNEL CATFISH 73 4 BROOK SILVERSIDE 66 BROOK SILVERSIDE 80 BROOK SILVERSIDE 74 BROOK SILVERSIDE 79 BROOK SILVERSIDE 65 BROOK SILVERSIDE 78 BROOK SILVERSIDE 79 BROOK SILVERSIDE 71 BROOK SILVERSIDE 60 BROOK SILVERSIDE 74 17 ROCK BASS 77 a ROCK BASS 64 6 ROCK BASS 77 10 ROCK BASS 72 9 ROCK BASS 72 9 ROCK BASS 61 5 ROCK BASS 69 8 ROCK BASS 63 6 ROCK BASS 52 4 ROCK BASS 56 4 ROCK BASS 51 3 ROCK BASS 42 1 ROCK BASS 46 2 ROCK BASS 41 1 ROCK BASS 41 I GREEN SUNFISH 120 32 LONGEAR SUNFISH 82 13 LONGEAR SUNFISH 52 3 LONGEAR SUNFISH 43 2

G-33 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT NEIGHT L -AR SUN-ISH- -- . .40.. ------.. LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 3638 1 SNALLOUTH BASS 91 11 SIALLMOUTH BASS 82 8 SMALLMOUTH BASS 96 10 SMALLNOUTH BASS 93 10 SMALLHOUTH BASS 95 10 SNALLIOUTH BASS 83 8 SNALLOUTH BASS 63 4 SNALLMOUTH BASS 90 7 SNALLMOUTH BASS 109 14 SNALLNOUTH BASS 84 9 SNALLMOUTH BASS 71 5 SNALLHOUTH BASS 105 12 SMALLMOUTH BASS 86 8 SNALLNOUTH BASS 107 15 SMALLHOUTH BASS 91 to SNALLOUTH BASS 72 5 SMALLNOUTH BASS 86 8 SNALLMOUTH BASS 91 10 SMALLNOUTH BASS 80 7 SMALLMOUTH BASS 92 9 SMALLMOUTH BASS 74 5 SNALLNOUTH BASS 87 10 SMALLNOUTH BASS 84 9 SMALLMOUTH BASS 80 8 SMALLMOUTH BASS 82 7 SMALLNOUTH BASS 75 6 SNALLMOUTH BASS 79 7 SMALLHOUTH BASS 82 7 SNALLNOUTH BASS 66 5 LARGENDUTH BASS 131 27 YELLOW PERCH 136 35 BLACKSIDE DARTER 70 4 DATE: 16JAN89 GIZZARD SHAD 120 1100 GIZZARD SHAD Ili aI GIZZARD SHAD 107 12 6IZZARD SHAD 126 17 GIZZARD SHAD 125 16 GIZZARD SHAD 116 14 GIZZARD SHAD 109 12 GIZZARD SHAD 89 7 GIZZARD SHAD 109 10 GIZZARD SHAD 127 18 GIZZARD SHAD 162 35 GIZZARD SHAD 112 12 GIZZARD SHAD 107 to GIZZARD SHAD 82 5 GIZZARD SHAD 101 9 GIZZARD SHAD 95 7 GIZZARD SHAD 82 5 GIZZARD SHAD 91 6 GIZZARD SHAD 110 12 GIZZARD SHAD III 11 GIZZARD SHAD 120 13 GIZZARD SHAD 112 12 GIZZARD SHAD 97 8 GIZZARD SHAD 100 9 GIZZARD SHAD t00 GIZZARD SHAD 96 I1 GIZZARD SHAD 78 5 GIZZARD SHAD 71 4 GIZZARD SHAD 90 6 GIZZARD SHAD 79 5 GIZZARD SHAD 80 5 COMMON CARP 194 120

G-34 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT HORNYHEAD CHUB 63 3 STRIPED SHINER 72 4 ROSYFACE SHINER 55 ROSYFACE SHINER 64 ROSYFACE SHINER 65 ROSYFACE SHINER 59 ROSYFACE SHINER 54 ROSYFACE SHINER 64 8 SPOTFIN SHINER 87 SPOTFIN SHINER 88 SPOTFIN SHINER 60 13 SAND SHINER 51 SAND SHINER 51 MIMIC SHINER 52 BLUNTNOSE MINNOW 73 BLUNTNOSE MINNOW 70 FATHEAD MINNOW 65 FATHEAD MINNOW 69 FATHEAD MINNOW 59 BULLHEAD MINNOW 69 BULLHEAD MINNOW 59 OUILLBACK 133 26 NORTHERN HOG SUCKER 152 39 NORTHERN HOG SUCKER 111 16 SILVER REDHORSE 105 13 SILVER REDHORSE 97 11 SILVER REDHORSE Ito I5 GOLDEN REDHORSE 87 8 SHORTHEAD REDHORSE 131 24 SHORTHEAD REDHORSE 118 17 SHORTHEAD REDHORSE 123 20 SHORTHEAD REDHORSE 114 15 BLACK BULLHEAD III t8 CHANNEL CATFISH 63 1 CHANNEL CATFISH 54 1 BROOK SILVERSIDE 81 BROOK SILVERSIDE 60 BROOK SILVERSIDE 85 BROOK SILVERSIDE 77 BROOK SILVERSIDE 72 BROOK SILVERSIDE 73 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 72 BROOK SILVERSIDE 73 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 78 BROOK SILVERSIDE 74 BROOK SILVERSIDE 84 BROOK SILVERSIDE 75 BROOK SILVERSIDE B8 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 74 BROOK SILVERSIDE 70 BROOK SILVERSIDE 72 BROOK SILVERSIDE 70 BROOK SILVERSIDE 54 BROOK SILVERSIDE 80 BROOK SILVERSIDE 72 BROOK SILVERSIDE 77 BROOK SILVERSIDE 72 50 ROCK BASS 79 9 ROCK BASS 65 5 ROCK BASS 60 5 ROCK BASS 61 5 ROCK BASS 89 15 ROCK BASS 98 16 ROCK BASS 62 5 ROCK BASS 67 7

G-35 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT ROCK BASS 62 5 ROCK BASS 72 5 ROCK BASS 57 4 ROCK BASS 59 5 ROCK BASS 66 7 ROCK BASS 73 9 ROCK BASS 56 4 ROCK BASS 80 11 ROCK BASS 77 to ROCK BASS 93 16 ROCK BASS 62 5 ROCK BASS 60 5 ROCK BASS 60 5 ROCK BASS 67 7 ROCK BASS 56 3 ROCK BASS 76 10 ROCK BASS 80 11 ROCK BASS 79 10 ROCK BASS 63 6 ROCK BASS 57 4 ROCK BASS 64 6 ROCK BASS 2i 111 GREEN SUNFISH 120 35 GREEN SUNFISH 164 90 ORANSESPOTTED SUNFISH 83 12 LONGEAR SUNFISH 119 39 LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 37 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 32 1 LONGEAR SUNFISH 34 1 LONGEAR SUNFISH 33 1 SNALLHOUTH BASS 87 9 SNALLNOUTH BASS 101 12 SMALLMOUTH BASS 127 21 SNALLNOUTH BASS 89 9 SMALLMOUTH BASS 106 14 SMALLNOUTH BASS 119 18 SNALLMOUTH BASS 92 10 SNALLNOUTH BASS 120 19 SMALLNOUTH BASS 94 10 SNALLNOUTH BASS 82 8 SMALLMOUTH BASS 65 4 SMALLMOUTH BASS 67 4 SNALLMOUTH BASS 82 7 SflALLHOUTH BASS 82 B SNALLHOUTH BASS 86 8 SMALLNOUTH BASS 87 9 SNALLMOUTH BASS 90 10 SMALLMOUTH BASS 83 B WHITE CRAPPIE 305 425 BLACK CRAPPIE 277 405 BLACK CRAPPIE 257 240 DATE: 17JAN89 GIZZARD SHAD 75 1000 GIZZARD SHAD I; GIZZARD SHAD 140 25 GIZZARD SHAD 130 20 6IZZARD SHAD 142 24 GIZZARD SHAD 117 15 GIZZARD SHAD 110 It GIZZARD SHAD 112 12 GIZZARD SHAD 79 5 GIZZARD SHAD 91 7 6IZZARD SHAD 90 7 GIZZARD SHAD 132 22 6IZZARD SHAD 117 14 GIZZARD SHAD 122 16 GIZZARD SHAD 127 17

G-36 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT HEIGHT GIZZARD SHAD 109 12 GIZZARD SHAD 113 12 GIZZARD SHAD 107 10 GIZZARD SHAD 109 13 GIZZARD SHAD 104 13 GIZZARD SHAD 110 11 GIZZARD SHAD 95 8 GIZZARD SHAD 120 15 GIZZARD SHAD 105 It GIZZARD SHAD 81 5 GIZZARD SHAD 81 5 GIZZARD SHAD 107 10 GIZZARD SHAD 91 7 GIZZARD SHAD 95 9 GIZZARD SHAD 76 4 HORNYHEAD CHUB 82 HORNYHEAD CHUB 70 10 ROSYFACE SHINER 64 SPOTFIN SHINER 76 4 SAND SHINER 77 3 MIMIC SHINER 62 MIMIC SHINER 63 SUCKERMOUTH MINNOW 77 5 DLUNTNOSE MINNOW 62 BLUNTNOSE MINNOW 66 BLUNTNOSE MINNOW 65 10 FATHEAD MINNOW 61 2 BULLHEAD MINNOW 57 BULLHEAD MINNOW 57 SILVER REDHORSE 103 12 SILVER REDHORSE 125 21 SHORTHEAD REDHORSE 118 15 SHORTHEAD REDHORSE 122 19 SHORTHEAD REDHORSE 121 18 BROWN BULLHEAD 155 40 BROOK SILVERSIDE Go BROOK SILVERSIDE 84 BROOK SILVERSIDE 71 BROOK SILVERSIDE 84 BROOK SILVERSIDE 77 BROOK SILVERSIDE 74 BROOK SILVERSIDE 77 BROOK SILVERSIDE 79 BROOK SILVERSIDE 84 BROOK SILVERSIDE 69 BROOK SILVERSIDE 71 BROOK SILVERSIDE 63 BROOK SILVERSIDE 77 BROOK SILVERSIDE 74 BROOK SILVERSIDE 78 2i ROCK BASS 72 7 ROCK BASS 71 8 ROCK BASS 88 15 ROCK BASS 71 7 ROCK BASS 63 4 ROCK BASS 63 5 ROCK BASS 82 12 ROCK BASS 72 7 ROCK BASS 57 4 ROCK BASS 68 7 ROCK BASS 70 7 ROCK BASS 65 5 ROCK BASS 62 5 ROCK BASS 62 5 ROCK BASS 60 5 ROCK BASS 71 7 ROCK BASS 68 6 ROCK BASS 61 5 ROCK BASS 70 8 ROCK BASS 60 5 ROCK BASS 53 3

G-37 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 53 3 ROCK BASS 42 1 GREEN SUNFISH 166 80 GREEN SUNFISH 41 1 LONGEAR SUNFISH 85 12 LONGEAR SUNFISH 113 31 LONGEAR SUNFISH 45 2 SHALLMOUTH BASS 148 37 SNALLMOUTH BASS 94 1I SMALLMOUTH BASS 87 8 SNALLMOUTH BASS 93 1o SMALLHOUTH BASS 103 13 SMALLMOUTH BASS 73 4 SMALLMOUTH BASS 70 4 SNALLMOUTH BASS I1o 17 SMALLOUTH BASS 112 19 YELLOW PERCH 131 23 BLACKSIDE DARTER 78 5 DATE: 18JAN89 GIZZARD SHAD 450 GIZZARD SHAD 12i GIZZARD SHAD 110 GIZZARD SHAD 126 6IZZARD SHAD 135 GIZZARD SHAD 143 6IZZARD SHAD 115 GIZZARD SHAD 115 GIZZARD SHAD 115 GIZZARD SHAD 107 GIZZARD SHAD 112 GIZZARD SHAD 116 GIZZARD SHAD 116 GIZZARD SHAD 107 GIZZARD SHAD 124 GIZZARD SHAD 106 GIZZARD SHAD 120 GIZZARD SHAD 83 GIZZARD SHAD 102 GIZZARD SHAD l0o GIZZARD SHAD 118 GIZZARD SHAD 136 GIZZARD SHAD 98 GIZZARD SHAD 91 GIZZARD SHAD 81 GIZZARD SHAD 91 GIZZARD SHAD B4 GIZZARD SHAD 75 GIZZARD SHAD 89 GIZZARD SHAD 76 6ZZARD SHAD 80 ROSYFACE SHINER 62 SAND SHINER 71 MIMIC SHINER 52 BLUNTNOSE MINNOW 60 BLUNTNOSE MINNOW 92 BLUNTNOSE MINNOW 84 BLUNTNOSE MINNOW 81 20 BULLHEAD MINNOW 55 SHORTHEAD REDHORSE 122 SHORTHEAD REDHORSE 72 SHORTHEAD REDHORSE 71 SHORTHEAD REDHORSE 46 SHORTHEAD REDHORSE 69 SHORTHEAD REDHORSE 76 SHORTHEAD REDHORSE 72 SHORTHEAD REDHORSE 82 SHORTHEAD REDHORSE 72 SHORTHEAD REDHORSE 71 SHORTHEAD REDHORSE 62

G-38 1988-B9 BRAIDNOOD STATION IMPINGENENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ....H T.....EAD...... D-RS ------SHORTHEAD REDHORSE 64 5 SHORTHEAD REMHORSEREDHORSE 3551 12 BLACK BULLHEAD 113 17 BROOK SILVERSIDE 62 BROOK SILVERSIDE 76 BROOK SILVERSIDE 68 BROOK SILVERSIDE 78 BROOK SILVERSIDE 69 BROOK SILVERSIDE 81 BROOK SILVERSIDE 81 BROOK SILVERSIDE 72 BROOK SILVERSIDE 67 i5 GREEN SUNFISH 135 60 GREEN SUNFISH 44 1 LONSEAR SUNFISH 85 10 LONGEAR SUNFISH 92 17 LONGEAR SUNFISH 70 6 LONGEAR SUNFISH 52 2 LONGEAR SUNFISH 48 1 LONGEAR SUNFISH 113 34 UNITLEPONIS 32 1 UNID LEPONIS 33 1 UNID LEPONIS 40 1 UNID LEPONIS 41 1 UNID LEPONIS 42 1 UNID LEPOKIS 42 1 UNID LEPOHIS 38 1 UNID LEPONIS 36 1 UNID LEPONIS 35 1 UNIO LEPONIS 38 1 UNID LEPOMIS 31 1 UNID LEPONIS 33 1 SNALLNOUTH BASS 123 23 SMALLNOUTH BASS 105 14 SNALLMOUTH BASS 80 7 SNALLHOUTH BASS 84 6 SHALLNOUTH BASS 82 7 SNALLOUTH BASS 78 7 SNALLHOUTH BASS 102 12 LARGEMOUTH BASS 128 26 BLACKSIDE DARTER 70 4 DATE: 23JAN89 GIZZARD SHAD 48 400 GIZZARD SHAD 82 6IZZARD SHAD 124 17 GIZZARD SHAD 106 6 GIZZARD SHAD 114 12 GIZZARD SHAD 107 9 GIZZARD SHAD 106 GIZZARD SHAD 115 13 GIZZARD SHAD 130 17 GIZZARD SHAD 110 10 GIZZARD SHAD 111 11 GIZZARD SHAD 181 50 GIZZARD SHAD 132 20 GIZZARD SHAD 135 21 GIZZARD SHAD 88 6 GIZZARD SHAD 115 12 GIZZARD SHAD 115 12 GIZZARD SHAD 97 8 GIZZARD SHAD 123 15 GIZZARD SHAD 1to 12 GIZZARD SHAD 110 11 GIZZARD SHAD 81 4 GIZZARD SHAD 94 7 GIZZARD SHAD 114 13 GIZZARD SHAD 111 10 GIZZARD SHAD 95 8

G-39 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 105 10 GIZZARD SHAD 95 6 GIZZARD SHAD 92 7 GIZZARD SHAD 95 7 HORNYHEAD CHUB 92 HORNYHEAD CHUB 91 HORNYHEAD CHUB 90 HORNYHEAD CHUB 83 HORNYHEAD CHUB 99 40 GOLDEN SHINER 93 GOLDEN SHINER 107 17 SPOTFIN SHINER B4 5 SAND SHINER 72 3 MIMIC SHINER 50 2 FATHEAD MINNOW 65 3 BULLHEAD MINNOW 73 BULLHEAD MINNOW 71 OUILLBACK 348 380 SILVER REDHORSE 115 18 SILVER REDHORSE 114 18 GOLDEN REDHORSE 61 2 SHORTHEAD REDHORSE 61 2 BLACK BULLHEAD 113 21 BROOK SILVERSIDE 72 2 ROCK BASS 77 10 ROCK BASS 90 16 ROCK BASS 62 4 ROCK BASS 72 7 ROCK BASS 62 5 ROCK BASS 46 2 ROCK BASS 47 2 ROCK BASS 73 6 ROCK BASS 60 4 ROCK BASS 66 5 ROCK BASS 66 5 ROCK BASS 52 3 ROCK BASS 95 17 ROCK BASS 56 3 ROCK BASS 52 2 ROCK BASS 57 3 ROCK BASS 63 5 ROCK BASS 100 1B ROCK BASS 80 it ROCK BASS 86 to ROCK BASS 67 5 ROCK BASS 67 5 ROCK BASS 77 7 ROCK BASS 68 5 ROCK BASS 75 8 ROCK BASS 71 7 ROCK BASS 60 4 ROCK BASS 75 8 ROCK BASS 62 4 ROCK BASS 58 3 ROCK BASS 28 140 GREEN SUNFISH 85 12 GREEN SUNFISH 100 17 GREEN SUNFISH 102 22 BLUEGILL 65 4 BLUEGILL BB 12 BLUEGILL 60 3 LONGEAR SUNFISH 84 13 LON6EAR SUNFISH 106 28 LONGEAR SUNFISH 87 15 LONGEAR SUNFISH 104 23 LONGEAR SUNFISH 48 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 48 1 LONGEAR SUNFISH 42 1

G-40 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT LONGEAR SUNFISH 41 I LONGEAR SUNFISH 33 1 SMALLMOUTH BASS 95 to SMALLHOUTH BASS 84 6 SMALLMOUTH BASS 66 4 SNALLMOUTH BASS 118 15 SMALLMOUTH BASS 110 16 SIALLHOUTH BASS 144 34 SHALLMOUTH BASS 87 7 SMALLMOUTH BASS 82 7 SNALLHOUTH BASS 90 8 SMALLHOUTH BASS S9 10 SMALLNOUTH BASS 70 5 SMALLHOUTH BASS 87 8 SMALLMOUTH BASS 101 13 SMALLMOUTH BASS 120 19 SNALLNOUTH BASS I11 16 SMALLLOUTH BASS 109 13 SMALLMOUTH BASS 118 17 SMALLMOUTH BASS 103 13 SMALLMOUTH BASS I11 17 SMALLMOUTH BASS 105 16 SMALLMOUTH BASS 60 2 SMALLHOUTH BASS 75 5 WHITE CRAPPIE 203 130 BLACK CRAPPIE 75 5 BLACK CRAPPIE 100 12 BLACK CRAPPIE 124 200 DATE: 24JAN89 GIZZARD SHAD 750 GIZZARD SHAD Ili GIZZARD SHAD 135 GIZZARD SHAD 102 GIZZARD SHAD 146 GIZZARD SHAD 103 GIZZARD SHAD 117 GIZZARD SHAD 121 GIZZARD SHAD 112 GIZZARD SHAD 113 GIZZARD SHAD 107 GIZZARD SHAD 122 6IZZARD SHAD 82 GIZZARD SHAD 116 GIZZARD SHAD 110 GIZZARD SHAD 129 GIZZARD SHAD 115 GIZZARD SHAD 140 GIZZARD SHAD 114 GIZZARD SHAD 90 6IZZARD SHAD 110 GIZZARD SHAD 106 GIZZARD SHAD 128 GIZZARD SHAD 112 GIZZARD SHAD 129 GIZZARD SHAD 135 GIZZARD SHAD 106 GIZZARD SHAD 132 GIZZARD SHAD 108 GIZZARD SHAD 88 GIZZARD SHAD 73 ROSYFACE SHINER 59 MIMIC SHINER 60 MIMIC SHINER 52 MIMIC SHINER 62 FATHEAD MINNOW 63 BULLHEAD MINNOW 65 BULLHEAD MINNOW 57 BULLHEAD MINNOW 72 BULLHEAD MINNOW 66

G-41 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT BULLHEAD MINNOW 60 BULLHEAD MINNOW 38 15 SHORTHEAD REDHORSE 119 16 STONECAT 119 16 ROCK BASS 66 6 ROCK BASS 69 6 ROCK BASS 66 5 ROCK BASS 81 12 ROCK BASS 101 21 ROCK BASS 60 5 ROCK BASS 82 10 ROCK BASS 61 5 ROCK BASS 63 5 ROCK BASS 62 5 ROCK BASS 64 5 ROCK BASS 59 4 ROCK BASS 56 4 GREEN SUNFISH 36 1 BLUE61LL 46 1 LONGEAR SUNFISH 90 15 LONGEAR SUNFISH 102 25 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 37 1 SNALLMOUTH BASS 116 19 SHALLOUTH BASS 107 is SMALLMOUTH BASS 71 5 SMALLNOUTH BASS 82 6 LARGEMOUTH BASS 106 16 BLACK CRAPPIE 103 13 DATE: 253AN89 GIZZARD SHAD 51 700 GIZZARD SHAD 163 37 GIZZARD SHAD 115 15 GIZZARD SHAD 125 17 GIZZARD SHAD 165 35 GIZZARD SHAD 151 29 GIZZARD SHAD 141 25 GIZZARD SHAD 130 20 GIZZARD SHAD 107 10 GIZZARD SHAD 131 20 GIZZARD SHAD 122 17 GIZZARD SHAD 135 25 GIZZARD SHAD 131 24 GIZZARD SHAD 95 6 GIZZARD SHAD 104 9 GIZZARD SHAD 109 to GIZZARD SHAD 114 12 GIZZARD SHAD 99 8 GIZZARD SHAD 100 9 GIZZARD SHAD t09 to GIZZARD SHAD 87 6 GIZZARD SHAD 71 3 GIZZARD SHAD 74 4 GIZZARD SHAD 107 10 GIZZARD SHAD 142 25 GIZZARD SHAD 108 I1 GIZZARD SHAD 110 10 GIZZARD SHAD 112 1I GIZZARD SHAD 117 14 GIZZARD SHAD 100 9 GIZZARD SHAD 102 9 GOLDEN SHINER 92 9 STRIPED SHINER 101 STRIPED SHINER 63 11 ROSYFACE SHINER 52 1 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 81 FATHEAD MINNOW 64 2 BULLHEAD MINNOW 69

G-42 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT QUILLBACK 101 12 STONECAT 125 20 BROOK SILVERSIDE 68 BROOK SILVERSIDE 71 ROCK BASS 43 1 ROCK BASS 71 6 ROCK BASS 58 4 ROCK BASS 59 4 ROCK BASS 61 5 ROCK BASS 66 6 ROCK BASS 66 7 ROCK BASS 55 4 ROCK BASS 65 6 ROCK BASS 62 4 ROCK BASS 50 3 ROCK BASS 46 2 ROCK BASS 52 3 ROCK BASS 54 3 ROCK BASS 55 3 ROCK BASS 44 2 ROCK BASS 43 1 GREEN SUNFISH 41 1 BLUEGILL 113 37 BLUEGILL 61 4 LONGEAR SUNFISH 60 4 LONGEAR SUNFISH 57 4 LONGEAR SUNFISH 63 5 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 42 1 SMALLMOUTH BASS 77 5 SMALLMOUTH BASS 105 13 WHITE CRAPPIE 57 2 BLACKSIDE DARTER 56 2 DATE: 30JAN09 GIZZARD SHAD 130 GIZZARD SHAD 106 GIZZARD SHAD 134 GIZZARD SHAD III GIZZARD SHAD 97 GIZZARD SHAD 121 GIZZARD SHAD 105 GIZZARD SHAD 122 GIZZARD SHAD 115 GIZZARD SHAD 98 6ZZARD SHAD 158 GIZZARD SHAD 22 GIZZARD SHAD 102 GIZZARD SHAD 97 GIZZARD SHAD 91 GIZZARD SHAD 105 GIZZARD SHAD 142 GIZZARD SHAD 126 GIZZARD SHAD 110 GIZZARD SHAD 120 GIZZARD SHAD 82 GIZZARD SHAD 112 6IZZARD SHAD 98 GIZZARD SHAD t00 GIZZARD SHAD 81 ROSYFACE SHINER 62 HIMIC SHINER 55 SHORTHEAD REDHORSE 97 ROCK BASS 87 ROCK BASS 70 ROCK BASS 64 ROCK BASS 64 ROCK BASS 53

G-43 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 48 2 ROCK BASS 56 4 GREEN SUNFISH 92 15 ORANGESPOTTED SUNFISH 90 15 BLUEGILL 86 12 BLUEGILL 92 16 BLUEGILL 88 11 BLUEGILL 58 3 BLUEGILL 35 1 LONGEAR SUNFISH 92 17 SMALLMOUTH BASS 80 6 SHALLNOUTH BASS 90 8 SNALLMOUTH BASS 85 8 LARGENOUTH BASS 90 10 WHITE CRAPPIE 233 180 BLACK CRAPPIE 105 15 BLACK CRAPPIE 130 28 BLACK CRAPPIE 113 20 DATE: 31JAN89 GIZZARD SHAD 141 500 GIZZARD SHAD 120 GIZZARD SHAD 137 6ZZARD SHAD 123 GIZZARD SHAD 127 GIZZARD SHAD 107 GIZZARD SHAD 110 GIZZARD SHAD 134 6IZZARD SHAD 124 GIZZARD SHAD 127 GIZZARD SHAD 131 GIZZARD SHAD 166 GIZZARD SHAD 127 GIZZARD SHAD 136 GIZZARD SHAD 133 GIZZARD SHAD 112 GIZZARD SHAD 96 GIZZARD SHAD 112 GIZZARD SHAD 110 GIZZARD SHAD 115 GIZZARD SHAD 106 GIZZARD SHAD 126 GIZZARD SHAD 117 GIZZARD SHAD 116 GIZZARD SHAD 104 GIZZARD SHAD 83 GIZZARD SHAD 122 GIZZARD SHAD 133 GIZZARD SHAD 127 6IZZARD SHAD too GIZZARD SHAD 107 BLUNTNOSE MINNOW 89 FATHEAD MINNOW 65 BULLHEAD HINNOW 57 BULLHEAD MINNOW 64 CHANNEL CATFISH 59 ROCK BASS 50 ROCK BASS 55 ROCK BASS 73 ROCK BASS 66 ROCK BASS 57 ROCK BASS 55 ROCK BASS 55 ROCK BASS 46 ROCK BASS 52 ROCK BASS 42 LONGEAR SUNFISH 133 LONGEAR SUNFISH 122 LONGEAR SUNFISH 43 LONGEAR SUNFISH 41

G-44 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT SMALLMOOTH BASS 91 6 DATE: OFEB89 GIZZARD SHAD 48 700 GIZZARD SHAD 18 60 GIZZARD SHAD 99 9 GIZZARD SHAD 94 8 GIZZARD SHAD 117 15 GIZZARD SHAD 110 13 GIZZARD SHAD 100 8 GIZZARD SHAD 143 25 GIZZARD SHAD 157 32 GIZZARD SHAD 102 9 GIZZARD SHAD 123 15 GIZZARD SHAD 90 6 GIZZARD SHAD 107 12 GIZZARD SHAD 105 10 GIZZARD SHAD 112 12 6IZZARD SHAD 120 16 GIZZARD SHAD 105 11 GIZZARD SHAD 114 13 GIZZARD SHAD 90 7 GIZZARD SHAD 107 10 GIZZARD SHAD 80 5 61ZZARD SHAD 103 10 GIZZARD SHAD 122 16 GIZZARD SHAD 106 I1 GIZZARD SHAD 87 7 GIZZARD SHAD 122 17 GIZZARD SHAD 97 8 GIZZARD SHAD 102 10 GIZZARD SHAD e1 5 GIZZARD SHAD 81 5 GIZZARD SHAD 96 8 ROSYFACE SHINER 57 1 SPOTFIN SHINER 66 3 MIMIC SHINER 59 MIMIC SHINER 52 MIMIC SHINER 57 4 BLUNTNOSE MINNOW 77 BLUNTNOSE MINNOW 82 FATHEAD HINNON 63 BULLHEAD MINNOW 65 3 STONECAT 141 27 BROOK SILVERSIDE 75 2 ROCK BASS 261 420 ROCK BASS 185 120 ROCK BASS 89 12 ROCK BASS 72 9 ROCK BASS 71 7 ROCK BASS 74 7 ROCK BASS 60 5 ROCK BASS 63 6 ROCK BASS 67 6 ROCK BASS 58 4 ROCK BASS 68 6 ROCK BASS 57 4 ROCK BASS 54 4 ROCK BASS 43 2 ROCK BASS 36 1 ROCK BASS 53 3 ROCK BASS 53 3 ROCK BASS 52 3 GREEN SUNFISH 42 2 GREEN SUNFISH 40 I BLUEGILL 56 3 BLUEGILL 55 3 LONGEAR SUNFISH 53 4 LONGEAR SUNFISH 55 4 LONGEAR SUNFISH 40 1

G-45 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT L...... NEA...... SUNFIS...... 42 --. --- LONGEAR SUNFISH 42 1 LONSEAR SUNFISH 1 LONGEAR SUNFISH 36 1 SMALLMOUTH BASS 101 12 SNALLMOUTH BASS 82 7 SMALLMOUTH BASS 80 6 SMALLMOUTH BASS 90 6 SMALLHOUTH BASS 105 13 SMALLMOUTH BASS 81 6 SMALLMOUTH BASS 110 15 SMALLNOUTH BASS 104 13 SMALLHOUTH BASS 110 13 SMALLMOUTH BASS 82 7 SNALLNOUTH BASS 81 7 WHITE CRAPPIE 43 1 LOPERCH 80 4 LOGPERCH 77 4 BLACKSIDE DARTER 76 5 BLACKSIDE DARTER 62 3 BLACKSIDE DARTER 62 3 BLACKSIDE DARTER 66 3 BLACKSIDE DARTER 70 3 DATE: 07FEB89 GIZZARD SHAD 250 5150 GIZZARD SHAD 242 460 GIZZARD SHAD 242 420 GIZZARD SHAD 306 310 GIZZARD SHAD 307 310 6IZZARD SHAD 322 330 GIZZARD SHAD 132 22 61ZZARD SHAD 125 17 GIZZARD SHAD 129 23 GIZZARD SHAD 152 36 GIZZARD SHAD 218 110 GIZZARD SHAD 107 10 GIZZARD SHAD 116 15 GIZZARD SHAD 115 15 GIZZARD SHAD 133 21 GIZZARD SHAD 136 22 GIZZARD SHAD 92 7 GIZZARD SHAD 116 16 GIZZARD SHAD 117 15 GIZZARD SHAD 149 32 GIZZARD SHAD 107 13 GIZZARD SHAD 119 15 GIZZARD SHAD 136 27 GIZZARD SHAD 115 15 GIZZARD SHAD 122 17 GIZZARD SHAD 115 15 GIZZARD SHAD 116 15 6ZZARD SHAD 110 13 GIZZARD SHAD 150 32 GIZZARD SHAD 130 21 GIZZARD SHAD 125 18 GOLDEN SHINER 83 GOLDEN SHINER 134 3i ROSYFACE SHINER 60 ROSYFACE SHINER 51 ROSYFACE SHINER 57 ROSYFACE SHINER 60 ROSYFACE SHINER 57 ROSYFACE SHINER 57 ROSYFACE SHINER 57 ROSYFACE SHINER 57 ROSYFACE SHINER 60 ROSYFACE SHINER 57 ROSYFACE SHINER 57 ROSYFACE SHINER 62 ROSYFACE SHINER 62

G-46 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROSYFACE SHINER 61 ROSYFACE SHINER 52 21 SAND SHINER 57 2 MIMIC SHINER 51 1 BLUNTNOSE MINNOW 77 BLUNTNOSE MINNOW £6 FATHEAD MINNOW 71 FATHEAD MINNOW 57 BULLHEAD MINNOW 67 BULLHEAD MINNOW 57 NORTHERN HOG SUCKER 125 22 SMALLMOUTH BUFFALO 117 24 SMALLMOUTH BUFFALO 169 70 SILVER REDHORSE 91 10 SILVER REMHORSE 120 23 SILVER REDHORSE 124 25 SILVER REDHORSE 119 22 SILVER REDHORSE 114 20 SILVER REDHORSE 122 22 SILVER REDHORSE 93 10 SILVER REDHORSE 107 15 SILVER REDHORSE 103 13 SILVER REDHORSE 115 19 SILVER REDHORSE 103 13 SILVER REDIHORSE 113 20 SILVER REDHORSE 117 20 SILVER REDHORSE 103 13 SILVER REDHORSE t00 13 GOLDEN REDHORSE 81 5 GOLDEN REDHORSE 95 10 SHORTHEAD REDHORSE 112 15 SHORTHEAD REDHORSE 107 12 SHORTHEAD REDHORSE 125 21 SHORTHEAD REDHORSE 117 20 SHORTHEAD REDHORSE 110 14 SHORTHEAD REDHORSE 110 13 SHORTHEAD REDHORSE 114 16 SHORTHEAD REDHORSE 10 13 SHORTHEAD REDHORSE 106 12 SHORTHEAD REDHORSE 117 17 SHORTHEAD REMHORSE 112 16 SHORTHEAD REDHORSE 101 11 SHORTHEAD REDHORSE 103 12 BLACK BULLHEAD 112 17 YELLOW BULLHEAD 104 15 BROOK SILVERSIDE 76 BROOK SILVERSIDE 67 BROOK SILVERSIDE 76 BROOK SILVERSIDE 82 BROOK SILVERSIDE 51 BROOK SILVERSIDE 77 10 ROCK BASS 94 IB ROCK BASS 77 10 ROCK BASS 82 12 ROCK BASS 112 27 ROCK BASS 67 7 ROCK BASS 78 12 ROCK BASS 82 6 ROCK BASS 71 8 ROCK BASS 74 8 ROCK BASS 65 7 ROCK BASS 85 13 ROCK BASS 73 8 ROCK BASS 57 5 ROCK BASS 69 6 ROCK BASS 60 5 ROCK PASS 61 6 ROCK BASS 86 14 ROCK BASS 65 7 ROCK BASS 71 7 ROCK BASS 79 8

G-47 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ...... A...... 62------ROCK BASS 6762 65 ROCK BASS 82 12 ROCK BASS 73 7 ROCK BASS 75 8 ROCK BASS 64 6 ROCK BASS 69 6 ROCK BASS 70 7 ROCK BASS 75 8 ROCK BASS 20 100 GREEN SUNFISH 134 65 GREEN SUNFISH 118 35 GREEN SUNFISH 157 110 GREEN SUNFISH 47 2 ORANGESPOTTED SUNFISH 82 14 BLUE6ILL 162 110 LONGEAR SUNFISH 43 2 LONGEAR SUNFISH 45 2 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 35 1 LONGEAR SUNFISH 37 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 37 1 LON6EAR SUNFISH 41 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 39 1 LONGEAR SUNFISH 131 55 LON6EAR SUNFISH 35 1 LONGEAR SUNFISH 92 20 LONGEAR SUNFISH 110 27 LONGEAR SUNFISH 82 13 LONGEAR SUNFISH 96 23 LONGEAR SUNFISH 91 20 LONGEAR SUNFISH 92 19 LONGEAR SUNFISH 107 33 SMALLNOUTH BASS 122 22 SMALLMOUTH BASS 118 20 SHALLLOUTH BASS 106 15 SMALLMOUTH BASS 114 14 SMALLMOUTH BASS 124 22 SMALLHOUTH BASS 131 27 SMALLMOUTH BASS 96 10 SNALLMOUTH BASS 106 16 SMALLMOUTH BASS 85 85 SMALLMOUTH BASS 92 7 SMALLMDUTH BASS 122 18 SHALLHOUTH BASS 136 34 SMALLHOUTH BASS 106 14 SMALLMOUTH BASS 93 10 SMALLNOUTH BASS 82 7 SMALLNOUTH BASS 110 17 SMALLNOUTH BASS 115 17 SMALLNOUTH BASS 130 33 SMALLMOUTH BASS 77 7 SMALLMOUTH BASS 8 10 SMALLNOUTH BASS 96 13 SMALLMOUTH BASS 86 8 SMALLNOUTH BASS 103 14 SMALLMOUTH BASS 62 3 LARGEMOUTH BASS 122 25 BLACK CRAPPIE 222 220 BLACK CRAPPIE 131 35 BLACK CRAPPIE 91 10 BLACK CRAPPIE 81 7 BLACK CRAPPIE 92 12 BLACKSIDE DARTER 70 4 FRESHWATER DRUM 232 160 DATE: 13FEB89 6IZZARD SHAD 34 1100

G-48 1988-89 BRAIDROOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 375 470 GIZZARD SHAD 331 355 GIZZARD SHAD 347 430 GIZZARD SHAD 320 355 GIZZARD SHAD 317 320 GIZZARD SHAD 341 370 GIZZARD SHAD 319 310 GIZZARD SHAD 320 300 GIZZARD SHAD 122 17 GIZZARD SHAD 139 26 GIZZARD SHAD 128 22 GIZZARD SHAD 124 20 GIZZARD SHAD 136 26 GIZZARD SHAD 140 29 GIZZARD SHAD 128 23 GIZZARD SHAD 149 30 GIZZARD SHAD 155 35 6IZZARD SHAD 145 31 GIZZARD SHAD 147 30 GIZZARD SHAD 122 20 GIZZARD SHAD 117 16 GIZZARD SHAD 120 17 GIZZARD SHAD 137 25 GIZZARD SHAD 153 38 GIZZARD SHAD 192 65 6IZZARD SHAD 145 30 GIZZARD SHAD 147 31 GIZZARD SHAD 122 19 GIZZARD SHAD 120 19 COMMON CARP 262 280 GOLDEN SHINER 85 5 ROSYFACE SHINER 61 ROSYFACE SHINER 70 SPOTFIN SHINER 70 2 MIMIC SHINER 58 MIMIC SHINER 45 MIMIC SHINER 50 MIMIC SHINER 51 BLUNTNOSE MINNOW 61 SMALLMOUTH BUFFALO 136 33 SILVER REDHORSE 141 40 SILVER REDHORSE 126 25 SILVER REDHORSE 123 23 SILVER REDHORSE 98 13 SILVER REDHORSE 103 12 SILVER REDHORSE 113 17 SILVER REDHORSE 116 21 SILVER REDHORSE 107 17 SILVER REDHORSE 103 13 SILVER REDHORSE 116 21 SILVER REDHORSE 115 20 SILVER REDHORSE 103 12 SILVER REDHORSE 91 8 SILVER REDHORSE 93 1o GOLDEN REDHORSE 81 6 SHORTHEAD REDHORSE 122 21 UNIO MfOXOSTOMA 57 2 BLACK BULLHEAD 101 12 STONECAT 149 30 BROOK SILVERSIDE 81 BROOK SILVERSIDE 70 BROOK SILVERSIDE 62 ROCK BASS 71 8 ROCK BASS 73 9 ROCK BASS 54 3 ROCK BASS 70 6 ROCK BASS 70 7 ROCK BASS 11 11 ROCK BASS 77 10 ROCK BASS 63 5 ROCK BASS 45 2

G -49 1968-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 64 5 ROCK BASS 73 9 ROCK BASS 76 9 ROCK BASS 63 5 ROCK BASS 40 1 ROCK BASS 71 7 ROCK BASS 62 5 ROCK BASS 84 13 ROCK BASS 86 13 ROCK BASS 51 4 ROCK BASS 83 12 ROCK BASS 71 6 ROCK BASS 54 3 ROCK BASS 67 5 ROCK BASS 75 6 ROCK BASS 55 3 ROCK BASS 63 4 ROCK BASS 64 4 ROCK BASS 37 1 ROCK BASS 61 4 ROCK BASS a I 65 ORANGESPOTTED SUNFISH 78 1i LONGEAR SUNFISH 110 34 LONGEAR SUNFISH 121 45 LONGEAR SUNFISH 00 22 LONBEAR SUNFISH 91 16 LONSEAR SUNFISH 40 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 42 2 SMALLNOUTH BASS 117 20 SMALLNOUTH BASS 92 9 SMALLMOUTH BASS 117 22 SNALLMOUTH BASS 121 20 SMALLNOUTH BASS 113 17 SMALLMOUTH BASS 103 13 SMALLMOUTH BASS 87 9 SMALLMOUTH BASS 82 7 SMALLNOUTH BASS 61 6 SMALLMOUTH BASS 91 9 LOGPERCH 62 5 FRESHWATER DRUM 216 125 DATE: 14FEB69 GIZZARD SHAD 350 440 GIZZARD SHAD 341 415 6IZZARD SHAD 163 40 GIZZARD SHAD 103 9 COMMON CARP 195 130 ROSYFACE SHINER 57 1 SPOTFIN SHINER 77 4 MIMIC SHINER 56 1 BULLHEAD MINNOW 75 5 NORTHERN HOG SUCKER 124 23 SILVER REDHORSE 122 22 SILVER REDHORSE 101 12 SILVER REDHORSE 116 1l GOLDEN REDHORSE 94 9 SHORTHEAD REDHORSE 110 14 SHORTHEAD REDHORSE 106 14 SHORTHEAD REDHORSE 105 12 SHORTHEAD REDHORSE 125 20 SHORTHEAD REDHORSE 120 17 BROOK SILVERSIDE 86 3 BROOK SILVERSIDE 82 2 ROCK BASS 83 13 ROCK BASS 77 10 ROCK BASS 75 12 ROCK BASS 67 6 ROCK BASS 81 10 ROCK BASS 61 5

G-50 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEI6HT ROCK BASS 59 4 . ROCK BASS 61 4 ROCK BASS 46 2 ROCK BASS 51 3 LONGEAR SUNFISH 42 2 LONGEAR SUNFISH 43 2 LONGEAR SUNFISH 44 2 SMALLNOUTH BASS 74 5 SNALLMOUTH BASS 162 50 SMALLNOUTH BASS 108 12 SNALLMOUTH BASS 104 13 SNALLHOUTH BASS 93 10 DATE: 15FEB89 GIZZARD SHAD 313 300 GIZZARD SHAD 298 260 GIZZARD SHAD 121 16 GIZZARD SHAD 153 33 GOLDEN SHINER 94 7 ROSYFACE SHINER 60 ROSYFACE SHINER 55 ROSYFACE SHINER 60 ROSYFACE SHINER 61 ROSYFACE SHINER 61 ROSYFACE SHINER 55 MIMIC SHINER 51 BLUNTNOSE MINNOW 81 5 SILVER REDHORSE 103 13 SILVER REDHORSE 125 23 SILVER REDHORSE 99 !1 SHORTHEAD REDHORSE 122 18 SHORTHEAD REDHORSE 140 30 BROOK SILVERSIDE 71 BROOK SILVERSIDE 73 ROCK BASS 59 4 ROCK BASS 74 8 ROCK BASS 64 5 ROCK BASS 65 6 ROCK BASS 44 2 ORANGESPOTTED SUNFISH 78 10 LONGEAR SUNFISH 41 I LONGEAR SUNFISH 36 1 36 LONGEAR SUNFISH 180 SNALLMOOTH BASS 230 SMALLMOUTH BASS 181 90 SNALLMOUTH BASS 107 15 SMALLHOUTH BASS 91 10 SMALLMOUTH BASS 83 7 SNALLNOUTH BASS 64 4 SHALLMOUTH BASS 105 15 SMALLNOUTH BASS 93 10 DATE: 20FE889 GIZZARD SHAD 297 260 GIZZARD SHAD 292 240 GIZZARD SHAD 153 38 GIZZARD SHAD 136 25 GIZZARD SHAD 139 26 GIZZARD SHAD 143 26 GIZZARD SHAD 139 25 GIZZARD SHAD 139 25 6IZZARD SHAD 152 34 GIZZARD SHAD 143 30 GIZZARD SHAD 142 30 GIZZARD SHAD 178 46 GIZZARD SHAD 126 20 GIZZARD SHAD 140 25 GIZZARD SHAD 145 34 GIZZARD SHAD 148 29

G-51 1988-89 BRAIDWOOD STATION IMPINGENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 140 30 GIZZARD SHAD 139 27 GIZZARD SHAD 124 20 GIZZARD SHAD 126 20 ROSYFACE SHINER 58 ROSYFACE SHINER 52 ROSYFACE SHINER 67 ROSYFACE SHINER 60 ROSYFACE SHINER 62 ROSYFACE SHINER 61 ROSYFACE SHINER 64 ROSYFACE SHINER 54 ROSYFACE SHINER 58 ROSYFACE SHINER 55 ROSYFACE SHINER 61 ROSYFACE SHINER 57 ROSYFACE SHINER 64 ROSYFACE SHINER 54 ROSYFACE SHINER 53 ROSYFACE SHINER 60 ROSYFACE SHINER 59 ROSYFACE SHINER 58 ROSYFACE SHINER 52 ROSYFACE SHINER 58 ROSYFACE SHINER 53 ROSYFACE SHINER 58 ROSYFACE SHINER 54 ROSYFACE SHINER 60 ROSYFACE SHINER 55 ROSYFACE SHINER 50 ROSYFACE SHINER 54 ROSYFACE SHINER 56 ROSYFACE SHINER 59 ROSYFACE SHINER 62 39 SPOTFIN SHINER 61 2 MIMIC SHINER 51 MIMIC SHINER 56 BLUNTNOSE MINNOW 85 BLUNTNOSE MINNOW 65 BLUNTNOSE MINNOW 74 BLUNTNOSE NINNON 70 BLUNTNOSE MINNOW 63 19 BULLHEAD MINNOW 71 BULLHEAD MINNOW 66 NORTHERN HOG SUCKER 112 15 SILVER REDHORSE 113 17 SILVER REDHORSE 133 27 SILVER REDHORSE 110 17 SILVER REDHORSE 84 7 SILVER REDHORSE 131 31 SILVER REDHORSE 136 31 SILVER REDHORSE 99 11 SHORTHEAD REDHORSE 122 17 SHORTHEAD REDHORSE 136 27 SHORTHEAD REDHORSE 113 15 SHORTHEAD REDHORSE 97 9 SHORTHEAD REDHORSE 113 16 SHORTHEAD REDHORSE 104 11 SHORTHEAD REDHORSE 76 5 SHORTHEAD REDHORSE 122 20 SHORTHEAD REDHORSE 92 9 CHANNEL CATFISH 72 4 CHANNEL CATFISH 78 4 BROOK SILVERSIDE 69 BROOK SILVERSIDE 76 BROOK SILVERSIDE 77 BROOK SILVERSIDE 72 BROOK SILVERSIDE 76 ROCK BASS 66 7 ROCK BASS 58 5 ROCK BASS 67 7

G-52 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT WEIGHT ROCK BASS 61 5 ROCK BASS 76 10 ROCK BASS 76 10 ROCK BASS 67 7 ROCK BASS 160 90 ROCK BASS 74 9 ROCK BASS 96 19 ROCK BASS 77 11 ROCK BASS 67 8 ROCK BASS 70 7 ROCK BASS 63 7 ROCK BASS 80 11 ROCK BASS 62 6 ROCK BASS 75 10 ROCK BASS 66 6 ROCK BASS 60 6 ROCK BASS 65 6 ROCK BASS 67 7 ROCK BASS 68 7 ROCK BASS 67 7 ROCK BASS 60 5 ROCK BASS 47 3 ROCK BASS 48 3 ROCK BASS 63 7 ROCK BASS 56 5 ROCK BASS 53 4 ROCK BASS 1; 51 LONGEAR SUNFISH 56 3 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 32 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 42 2 SMAILNOUTH BASS 148 38 SNALLNOUTH BASS 122 27 SNALLMOUTH BASS 84 7 SMALLNOUTH BASS 83 7 SNALLNOUTH BASS 82 6 SMALLNOUTH BASS 86 8 SNALLHOUTH BASS 98 12 SNALLNOUTH BASS 105 15 SMALLIJOUTH BASS 98 11 SMALLHOUTH BASS 71 4 BLACK CRAPPIE 210 160 BLACKSIDE DARTER 82 7 DATE: 21FEB89 GIZZARD SHAD 147 29 GIZZARD SHAD 155 39 GIZZARD SHAD 72 3 GOLDEN SHINER 91 15 GOLDEN SHINER 92 ROSYFACE SHINER 56 ROSYFACE SHINER 57 ROSYFACE SHINER 61 3 SPOTFIN SHINER 63 BLUNTNOSE MINNON 81 6 SILVER REDHORSE 121 20 SHORTHEAD REDHORSE 108 14 CHANNEL CATFISH 65 2 CHANNEL CATFISH 58 2 ROCK BASS 143 50 ROCK BASS 48 3 ROCK BASS 41 1 ROCK BASS 41 1 ROCK BASS 55 4 GREEN SUNFISH 123 40 LONGEAR SUNFISH 42 1 SNALLNOUTH BASS 103 12 SNALLNOUTH BASS 77 6 SNALLHOUTH BASS 116 19

G-53 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT SIALLMOUTH BASS 140 30 SMALLMOUTH BASS 92 13 SMALLMOUTH BASS 114 17 SHALLNOUTH BASS 94 12 SMALLMOUTH BASS 75 6 YELLOW PERCH 115 18 DATE: 22FEB89 GIZZARD SHAD 127 18 GIZZARD SHAD 163 44 GIZZARD SHAD 147 30 GOLDEN SHINER 108 10IO STRIPED SHINER 57 ROSYFACE SHINER 62 ROSYFACE SHINER 61 ROSYFACE SHINER 55 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 53 ROSYFACE SHINER 61 ROSYFACE SHINER 56 ROSYFACE SHINER 53 ROSYFACE SHINER 54 ROSYFACE SHINER 57 ROSYFACE SHINER 60 ROSYFACE SHINER 58 ROSYFACE SHINER 51 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 58 ROSYFACE SHINER 56 ROSYFACE SHINER 57 ROSYFACE SHINER 55 ROSYFACE SHINER 57 ROSYFACE SHINER 54 ROSYFACE SHINER 52 ROSYFACE SHINER 55 SPOTFIN SHINER 68 3 BLUNTNOSE MINNOW 60 2 GOLDEN REDHORSE 80 5 CHANNEL CATFISH 56 BROOK SILVERSIDE 82 BROOK SILVERSIDE 77 BROOK SILVERSIDE 70 BROOK SILVERSIDE 63 BROOK SILVERSIDE 74 BROOK SILVERSIDE 75 BROOK SILVERSIDE 85 BROOK SILVERSIDE 75 BROOK SILVERSIDE 77 BROOK SILVERSIDE 59 BROOK SILVERSIDE 81 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 78 BROOK SILVERSIDE 80 BROOK SILVERSIDE 80 BROOK SILVERSIDE 77 BROOK SILVERSIDE 56 BROOK SILVERSIDE 63 BROOK SILVERSIDE 70 ROCK BASS 73 ROCK BASS 40 21 ROCK BASS 1O0 ROCK BASS 70 7 ROCK BASS 75 8 ROCK BASS 75 8 ROCK BASS 58 4 ROCK BASS 50 3 ORANGESPOTTED SUNFISH 74 7

G-54 1980-89 BRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIHT SNALLMOUTH BASS 90 8 SMALLMOUTH BASS 89 10 JOHNNY DARTER 37 1 BLACKSIDE DARTER 68 3 BLACKSIDE DARTER 71 3 DATE: 27FEB89 GIZZARD SHAD 140 22 ROSYFACE SHINER 51 ROSYFACE SHINER 52 ROSYFACE SHINER 53 BLUNTNOSE MINNOW 80 BLUNTHOSE MINNOW 80 BLUNTNOSE MINNOW 81 OUILLBACK 122 21 STONECAT 85 6 ROCK BASS 122 38 ROCK BASS 65 6 ROCK BASS 56 4 ROCK BASS 51 3 GREEN SUNFISH 120 32 LONGEAR SUNFISH 116 36 LONGEAR SUNFISH 41 1 SMALLMOUTH BASS 171 70 SMALLMOUTH BASS 103 13 SMALLMOUTH BASS 101 8 SNALLMOUTH BASS 102 8 SMALLMOUTH BASS 95 LARGEMOUTH BASS 160 60 DATE: 28FEB09 GIZZARD SHAD 148 33 GOLDEN SHINER 77 4 STRIPED SHINER 66 3 ROSYFACE SHINER 57 1 ROCK BASS 71 6 ROCK BASS 98 22 ROCK BASS 63 5 ROCK BASS 67 6 ROCK BASS 77 10 SMALLOUTH BASS 122 21 SMALLMOUTH BASS 105 12 SMALLHOUTH BASS 143 30 SNALLNOUTH BASS 113 16 SMALLNOUTH BASS 63 3 SMALLMOUTH BASS 96 11 DATE: OI1AR89 GIZZARD SHAD 356 440 GIZZARD SHAD 104 8 GIZZARD SHAD 107 9 HORNYHEAD CHUB 96 10 HORNYHEAD CHUB 92 9 STRIPED SHINER 57 2 ROSYFACE SHINER 51 ROSYFACE SHINER 53 ROSYFACE SHINER 54 ROSYFACE SHINER 62 ROSYFACE SHINER 61 ROSYFACE SHINER 63 ROSYFACE SHINER 58 ROSYFACE SHINER 57 ROSYFACE SHINER 54 ROSYFACE SHINER 58 ROSYFACE SHINER 57 ROSYFACE SHINER 54 ROSYFACE SHINER 47 ROSYFACE SHINER 52 1~7

G-55 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT NEI6HT BLUNTNOSE MINNOW 70 3 SILVER REDHORSE 87 8 STONECAT 143 23 STONECAT 156 39 ROCK BASS 56 3 ROCK BASS 52 3 ROCK BASS 60 4 ROCK BASS 60 4 ROCK BASS 6 5 ROCK BASS 64 6 ROCK BASS 51 3 SMALLMOUTH BASS 113 15 SHALLMOUTH BASS 74 5 SNALLNOUTH BASS 100 11 SMALLMOUTH BASS 113 17 SMALLNOUTH BASS 105 14 LOGPERCH FRESHWATER DRUM 233 140 DATE: 06MAR89 GIZZARD SHAD 320 360 GIZZARD SHAD 288 190 GIZZARD SHAD 92 7 GIZZARD SHAD 110 10 COBMON CARP 205 140 GOLDEN SHINER 106 GOLDEN SHINER 132 GOLDEN SHINER 96 GOLDEN SHINER 116 EMERALD SHINER 82 4 ROSYFACE SHINER 57 ROSYFACE SHINER 55 ROSYFACE SHINER 64 ROSYFACE SHINER 57 ROSYFACE SHINER 51 ROSYFACE SHINER 58 ROSYFACE SHINER 58 ROSYFACE SHINER 51 ROSYFACE SHINER 59 ROSYFACE SHINER 56 ROSYFACE SHINER 55 ROSYFACE SHINER 52 ROSYFACE SHINER 58 ROSYFACE SHINER 53 ROSYFACE SHINER 56 ROSYFACE SHINER 57 ROSYFACE SHINER 55 ROSYFACE SHINER 52 ROSYFACE SHINER 53 ROSYFACE SHINER 56 ROSYFACE SHINER 58 ROSYFACE SHINER 51 ROSYFACE SHINER 53 ROSYFACE SHINER 54 SPOTFIN SHINER 72 SPOTFIN SHINER 65 SPOTFIN SHINER 81 SPOTFIN SHINER 71 SPOTFIN SHINER 70 SPOTFIN SHINER 75 SPOTFIN SHINER 70 MIMIC SHINER 46 MIMIC SHINER 57 BLUNTNOSE MINNOW 89 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 89 BLUNINOSE MINNOW 77 BLUNTNOSE MINNOW 84 BLUNTNOSE MINNOW 83 BLUNTNOSE MINNOW 73

G-56 1988-89 BRAIDNOOD STATION IMPINGENENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT BULLHEAD MINNOW 71 BULLHEAD MINNOW 59 GUILLBACK 142 35 BUILLBACK 131 26 GUILLBACK 121 21 GUILLBACK 158 56 GUILLBACK 142 34 GUILLBACK 130 29 GUILLBACK 155 48 OUILLBACK 133 26 SILVER REDHORSE 121 22 SILVER REDHORSE 91 6 SILVER REDHORSE 81 6 SILVER REDHORSE 83 7 BLACK REDHORSE 103 12 SHORTHEAD REDHORSE 111 15 SHORTHEAD REDHORSE 118 19 SHORTHEAD REDHORSE 105 12 BLACK BULLHEAD 115 16 BLACK BULLHEAD 125 27 BLACK BULLHEAD 127 29 YELLOW BULLHEAD 166 60 CHANNEL CATFISH 42 1 BLACKSTRIPE TOPHINNOW 44 1 BROOK SILVERSIDE 75 BROOK SILVERSIDE 71 BROOK SILVERSIDE 75 BROOK SILVERSIDE 68 BROOK SILVERSIDE 65 BROOK SILVERSIDE 78 BROOK SILVERSIDE 73 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 63 BROOK SILVERSIDE 73 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 22 ROCK BASS 190 160 ROCK BASS 195 160 ROCK BASS 150 70 ROCK BASS 107 22 ROCK BASS 75 9 ROCK BASS 63 4 ROCK BASS 65 5 ROCK BASS 63 5 ROCK BASS 80 10 ROCK BASS 73 9 ROCK BASS 68 6 ROCK BASS 67 6 ROCK BASS 88 14 ROCK BASS 81 II ROCK BASS 66 5 ROCK BASS 69 6 ROCK BASS 77 9 ROCK BASS 81 10 ROCK BASS 75 8 ROCK BASS 71 7 ROCK BASS 57 5 ROCK BASS 63 5 ROCK BASS 57 5 ROCK BASS 62 5 ROCK BASS 51 4 ROCK BASS 52 3 ROCK BASS 57 4 ROCK BASS 38 1 ROCK BASS 57 3 ROCK BASS 77 7 ROCK BASS 91 756 GREEN SUNFISH i02 2i GREEN SUNFISH 133 60 GREEN SUNFISH 120 34

G-57 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ORANGESPOTTED SUNFISH 6l 4 ORANGESPOTTED SUNFISH 102 21 BLUEGILL 152 71 BLUEGILL 42 1 BLUEGILL 53 2 LON6EAR SUNFISH 96 19 LONGEAR SUNFISH 106 29 LONGEAR SUNFISH 94 18 LONGEAR SUNFISH 64 4 LUN6EAR SUNFISH 53 2 LONSEAR SUNFISH 47 1 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 34 1 LONGEAR SUNFISH 77 9 SMALLHOUTH BASS 81 7 SMALLMOUTH BASS 86 9 SMALLHOUTH BASS 87 9 SNALLMOUTH BASS 116 22 SMALLNOUTH BASS 96 10 SHALLMOUTH BASS 97 II SMALLMOUTH BASS 116 17 SMALLNOUTH BASS 96 10 SNALLNOUTH BASS 94 9 SMALLNOUTH BASS 87 9 SNALLHOUTH BASS 68 4 SNALLMOUTH BASS 63 3 SNALLMOUTH BASS 97 10 SMALLNOUTH BASS 105 14 SMALLHOUTH BASS 75 5 SMALLMOUTH BASS 102 15 SMALLMOUTH BASS 94 II SNALLNOUTH BASS 87 9 SMALLHOUTH BASS 93 10 SMALLMOUTH BASS 78 7 SMALLMOUTH BASS 96 11 SMALLMOUTH BASS 71 4 SMALLMOUTH BASS 80 6 SNALLMOUTH BASS 90 8 SKALLMOUTH BASS 91 9 SNALLHOUTH BASS 115 10 SNALLMOUTH BASS 83 8 SMALLMOUTH BASS 72 4 LAR6EMOUTH BASS 173 B0 LARGEMOUTH BASS 105 15 BLACK CRAPPIE 246 301 BANDED DARTER 50 I BLACKSIDE DARTER 63 3 BLACKSIDE DARTER 59 2 FRESHWATER DRUM 232 140 DATE: 07MAR89 GIZZARD SHAD 136 25 GIZZARD SHAD 78 4 COMMONCARP 241 225 HORNYHEAD CHUB 83 HORNYHEAD CHUB 81 GOLDEN SHINER 86 ROSYFACE SHINER 60 ROSYFACE SHINER 65 ROSYFACE SHINER 65 ROSYFACE SHINER 57 ROSYFACE SHINER 55 ROSYFACE SHINER 55 ROSYFACE SHINER 57 ROSYFACE SHINER 54 ROSYFACE SHINER 54 ROSYFACE SHINER 53 ROSYFACE SHINER 56 ROSYFACE SHINER 57

G-58 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROSYFACE SHINER 55 - ROSYFACE SHINER 55 ROSYFACE SHINER 51 ROSYFACE SHINER 52 ROSYFACE SHINER 45 ROSYFACE SHINER 56 26 SPOTFIN SHINER 71 4 BLUNTNOSE MINNOW 86 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW £6 BLUNTNOSE MINNOW 87 BLUNTNOSE MINNOW 75 23 BULLHEAD MINNOW 70 BULLHEAD MINNOW 61 BULLHEAD MINNOW 54 OUILLBACK 122 23 SMALLNOUTH BUFFALO 135 37 SILVER REDHORSE 95 9 SILVER REDHORSE 112 16 SILVER REDHORSE 113 18 SILVER REDHORSE 115 20 SILVER REDHORSE 97 10 SILVER REDHORSE 85 7 SILVER REDHORSE 127 24 GOLDEN REDHORSE 54 2 SHORTHEAD REDHORSE 87 7 SHORTHEAD REDHORSE 120 19 SHORTHEAD REDHORSE lie 17 SHORTHEAD REDHORSE 113 15 SHORTHEAD REDHORSE 119 20 SHORTHEAD REDHORSE 102 12 BLACK BULLHEAD 96 14 CHANNEL CATFISH 82 3 STONECAT 124 14 STONECAT 166 35 STONECAT 120 14 BROOK SILVERSIDE 74 BROOK SILVERSIDE 85 BROOK SILVERSIDE 63 BROOK SILVERSIDE 77 BROOK SILVERSIDE 76 BROOK SILVERSIDE 63 10 ROCK BASS 206 172 ROCK BASS 190 154 ROCK BASS 138 59 ROCK BASS 74 9 ROCK BASS 70 6 ROCK BASS 60 5 ROCK BASS 82 13 ROCK BASS 95 17 ROCK BASS 55 3 ROCK BASS 55 3 ROCK BASS 65 6 ROCK BASS 76 8 ROCK BASS 81 10 ROCK BASS 73 7 ROCK BASS 71 7 ROCK BASS 81 10 ROCK BASS 69 7 ROCK BASS 57 4 ROCK BASS 78 8 ROCK BASS 64 6 ROCK BASS 77 8 ROCK BASS 78 8 ROCK BASS 63 6 ROCK BASS 72 7 ROCK BASS 78 8 ROCK BASS 53 3 ROCK BASS 63 6 ROCK BASS 87 if ROCK BASS 72 7

G-59 1980-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT HEIGHT ROCK BASS 86 810 GREEN SUNFISH 150 74 GREEN SUNFISH 120 40 GREEN SUNFISH 100 21 GREEN SUNFISH 83 12 GREEN SUNFISH 108 25 ORANGESPOTTED SUNFISH 65 5 LONGEAR SUNFISH 116 39 LONGEAR SUNFISH 79 10 LONSEAR SUNFISH 108 27 LONGEAR SUNFISH 93 18 LONGEAR SUNFISH 108 32 LONGEAR SUNFISH 107 30 LONGEAR SUNFISH 91 22 LONGEAR SUNFISH 82 12 LUNGEAR SUNFISH 84 13 LONGEAR SUNFISH 98 24 LONGEAR SUNFISH 28 1 LONGEAR SUNFISH 35 1 LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 41 I LONSEAR SUNFISH 41 1 LONGEAR SUNFISH 42 I LONGEAR SUNFISH 36 1 LONBEAR SUNFISH 44 2 LONGEAR SUNFISH 50 2 LONGEAR SUNFISH 53 3 HYBRID SUNFISH 83 14 SMALLMOUTH BASS 82 7 SMALLMDUTH BASS 106 14 SMALLMOUTH BASS 107 14 SHALLHOUTH BASS 82 6 SMALLHOUTH BASS 77 6 SMALLOUTH BASS 104 12 SMALLHOUTH BASS 118 20 SMALLMOUTH BASS 89 9 SMALLMOUTH BASS 99 it SMALLMOUTH BASS 97 10 SMALLMOUTH BASS 90 9 SMALLMOUTH BASS 93 10 SHALLMOUTH BASS 106 13 SMALLMOUTH BASS 104 12 SMALLMOUTH BASS 93 10 SMALLMOUTH BASS 105 13 SMALLMOUTH BASS 96 10 SMALLNDUTH BASS 101 10 SMALLMOUTH BASS 96 9 SMALLHOUTH BASS 97 12 SMALLMOUTH BASS 103 SMALLMOUTH BASS 97 12 SMALLMOUTH BASS 104 13 SMALLMOUTH BASS 88 8 SMALLMOUTH BASS 92 10 SMALLMOUTH BASS 112 16 SMALLMOUTH BASS 106 14 SMALLMOUTH BASS 96 8 SMALLMOUTH BASS 106 14 SNALLMOUTH BASS 126 26 SMALLMOUTH BASS 1; 19 JOHNNY DARTER 5i i YELLOW PERCH 124 24 LO6PERCH 82 5 LOGPERCH 97 9 LOSPERCH 82 5 BLACKSIDE DARTER 82 6 SLENDERHEAD DARTER 50 1 DATE: 08MAR89 GIZZARD SHAD 126 17 61ZZARD SHAD 296 275

G-60 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT NEIGHT HORNYHEAD CHUB 92 - HORNYHEAD CHUB 91 HORNYHEAD CHUB 85 30 HORNYHEAD CHUB 53 2 EMERALD SHINER 93 EMERALD SHINER 92 11 STRIPED SHINER 76 4 ROSYFACE SHINER 61 ROSYFACE SHINER 56 ROSYFACE SHINER 57 ROSYFACE SHINER 52 RDSYFACE SHINER 63 ROSYFACE SHINER 57 ROSYFACE SHINER 52 ROSYFACE SHINER 54 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 66 ROSYFACE SHINER 55 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 49 ROSYFACE SHINER 52 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 53 ROSYFACE SHINER 56 ROSYFACE SHINER 56 ROSYFACE SHINER 58 ROSYFACE SHINER 53 ROSYFACE SHINER 54 ROSYFACE SHINER 54 ROSYFACE SHINER 53 ROSYFACE SHINER 55 ROSYFACE SHINER 54 ROSYFACE SHINER 56 ROSYFACE SHINER 54 ROSYFACE SHINER SPOTFIN SHINER SPOTFIN SHINER 84 SPOTFIN SHINER 80 SPOTFIN SHINER 61 17 MIMIC SHINER 52 MIMIC SHINER 48 BLUNTNOSE MINNOW 76 BLUNTNOSE MINNOW 78 a0 OUILLBACK 150 39 DUILLBACK 147 40 GUILLBACK 145 42 OUILLBACK 145 35 SILVER REDHORSE 106 17 SILVER REDHORSE 132 26 SILVER REDHORSE 132 29 SILVER REMORSE 115 19 SILVER REIHORSE 122 22 SILVER REDHORSE 130 25 SILVER REDHORSE 103 13 GOLDEN REDHORSE 58 2 GOLDEN REDHORSE 56 2 GOLDEN REDHORSE 54 2 SHORTHEAD REDHORSE 103 12 SHORTHEAD REDHORSE 100 10 SHORTHEAD REDHORSE 0t1 It SHORTHEAD REDHORSE 104 11 SHORTHEAD REDHORSE 110 15 SHORTHEAD REDHORSE 108 14 SHORTHEAD REDHORSE 117 14 YELLOW BULLHEAD 153 46 CHANNEL CATFISH 58 2 CHANNEL CATFISH 63 2 STONECAT 171 47

G-61 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT BROOK SiLVERSiDE 67 .-- BROOK SILVERSIDE 77 BROOK SILVERSIDE 67 ROCK BASS 170 102 ROCK BASS 215 215 ROCK BASS 185 150 ROCK BASS 207 207 ROCK BASS 72 9 ROCK BASS 62 5 ROCK BASS 66 7 ROCK BASS 65 5 ROCK BASS 60 5 ROCK BASS 77 10 ROCK BASS 67 7 ROCK BASS 56 4 ROCK BASS 61 5 ROCK BASS 67 7 ROCK BASS 57 4 ROCK BASS 45 2 ROCK BASS 55 4 ROCK BASS 56 4 ROCK BASS 66 6 ROCK BASS 67 6 ROCK BASS 66 6 ROCK BASS 63 5 ROCK BASS 45 2 ROCK BASS 41 1 ROCK BASS 41 1 ROCK BASS 65 5 ROCK BASS 53 5 ROCK BASS 63 5 ROCK BASS 77 8 ROCK BASS 63 5 ROCK BASS 61 5 ROCK BASS 70 7 ROCK BASS 66 6 ROCK BASS 71 7 ROCK BASS 61 5 ROCK BASS 54 5 ROCK BASS 69 6 ROCK BASS 70 7 ROCK BASS 63 5 ROCK BASS 51 4 ROCK BASS 106 Bob GREEN SUNFISH 4i i BLUEBILL 66 5 LONGEAR SUNFISH 97 25 LONGEAR SUNFISH 122 40 LON6EAR SUNFISH 45 2 LONGEAR SUNFISH 57 4 LONGEAR SUNFISH 60 4 LONGEAR SUNFISH 51 3 LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 1o0 31 SMALLNOUTH BASS 154 50 SNALLMOUTH BASS i15 22 SNALLNOUTH BASS 102 13 SNALLOUTH BASS 95 10 SNALLOUTH BASS 113 17 SMALLNOUTH BASS 136 32 SMALLMOUTH BASS 81 6 SNALLOUTH BASS 61 3 SNALLMOUTH BASS 82 7 SNALLMOUTH BASS 96 12 SMALLNOUTH BASS 97 11 SNALLNOUTH BASS 105 14 SNALLMOUTH BASS 91 10 SNALLNOUTH BASS 93 21 SRALLROUTH BASS 79 6 SMALLOUTH BASS 80 6

G-62 1908-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEI6HT SMALLMOUTH BASS 94 12 SHALLMOUTH BASS 102 13 SMALLMOUTH BASS 118 24 SMALLNOUTH BASS 81 6 SNALMNOUTH BASS 99 14 SMALLNOUTH BASS 96 13 SNALLNOUTH BASS 76 5 SMALLMOUTH BASS 82 7 SNALLMOUTH BASS 99 12 SMALLNOUTH BASS 94 11 SNALLNOUTH BASS 94 12 SMALLNOUTH BASS 94 12 SMALLMOUTH BASS 96 13 SMALLNOUTH BASS 1; 176 LOSPERCH A BLACKSIDE DARTER 68 4 BLACKSIDE DARTER 71 4 FRESHWATER DRUM 232 156 DATE: 13HAR89 GIZZARD SHAD 297 280 GIZZARD SHAD 132 21 GIZZARD SHAD 191 70 COMMON CARP 215 170 GOLDEN SHINER 05 GOLDEN SHINER 92 GOLDEN SHINER 93 GOLDEN SHINER 90 ROSYFACE SHINER 57 ROSYFACE SHINER 67 ROSYFACE SHINER 57 SPOTFIN SHINER 85 SPOTFIN SHINER 77 SPOTFIN SHINER 81 SPOTFIN SHINER 82 SPOTFIN SHINER 61 SPOTFIN SHINER 61 SPOTFIN SHINER 81 SPOTFIN SHINER 81 SPOTFIN SHINER 72 SPOTFIN SHINER 77 SPOTFIN SHINER 85 SPOTFIN SHINER 61 SPOTFIN SHINER 77 MIMIC SHINER 59 MIMIC SHINER 55 MIMIC SHINER 62 OLUNTNOSE MINNOW 81 BLUNTNOSE MINNOW 81 BLUNTNOSE MINNOW 86 BLUNTNOSE MINNOW 75 BLUNTNOSE NINNOW 80 BLUNTNOSE MINNOW 81 BLUNTNOSE MINNOW 83 FATHEAD MINNOW 60 FATHEAD MINNOW 63 FATHEAD MINNOW 73 FATHEAD MINNOW 61 FATHEAD MINNOW 61 FATHEAD MINNOW 69 BULLHEAD MINNOW 79 BULLHEAD MINNOW 78 BULLHEAD MINNOW 67 BULLHEAD MINNOW 75 NORTHERN HOG SUCKER 125 21 SILVER REDHORSE III 17 GOLDEN REDHORSE 101 11 GOLDEN REDHORSE 6i 2 SHORTHEAD REDHORSE 124 21 SHORTHEAD REDHORSE 92 8

G-63 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT STONECAT 177 55 STONECAT 70 3 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 77 BROOK SILVERSIDE 81e BROOK SILVERSIDE 64 ROCK BASS 155 75 ROCK BASS 82 It ROCK BASS 85 12 ROCK BASS 88 12 ROCK BASS 67 7 ROCK BASS 71 7 ROCK BASS 65 a ROCK BASS 60 5 ROCK BASS 71 a ROCK BASS 65 6 ROCK BASS 59 5 ROCK BASS 56 5 ROCK BASS B5 13 ROCK BASS 91 10 ROCK BASS 66 7 ROCK BASS 63 6 ROCK BASS 71 8 ROCK BASS 64 6 ROCK BASS 61 5 ROCK BASS 57 4 ROCK BASS 64 5 ROCK BASS 62 4 ROCK BASS 61 4 ROCK BASS 65 5 ROCK BASS 68 6 ROCK BASS 61 6 ROCK BASS 75 9 ROCK BASS 63 6 ROCK BASS 58 4 ROCK BASS 57 4 ROCK BASS 46 225 GREEN SUNFISH 102 20 ORANGESPOTTED SUNFISH 77 10 ORANGESPOTTED SUNFISH 82 12 ORANGESPOTTED SUNFISH 77 9 ORANGESPOTTED SUNFISH 65 5 BLUEGILL IB2 160 BLUEGILL 151 65 BLUEGILL 131 50 BLUEGILL 105 21 BLUEBILL 65 5 BLUEGILL 62 4 BLUEGILL 46 2 BLUEGILL 50 3 LONGEAR SUNFISH 82 12 LONGEAR SUNFISH 64 5 LONGEAR SUNFISH 61 4 LONGEAR SUNFISH 51 3 LONGEAR SUNFISH 45 2 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 50 2 LONGEAR SUNFISH 110 32 LONGEAR SUNFISH 97 18 LONGEAR SUNFISH 86 15 LONGEAR SUNFISH 81 13 LONGEAR SUNFISH 56 4 LONSEAR SUNFISH 60 5 LONGEAR SUNFISH 50 3 LONGEAR SUNFISH 39 1 LONGEAR SUNFISH 43 2 SMALLMOUTH BASS 140 35 SNALLMOUTH BASS 153 45 SHALLHOUTH BASS 114 18 SMALLMOUTH BASS 97 10

G-64 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEI6HT COUNT NEI6HT SMALLHOUTH BASS 87 9 SMALLMOUTH BASS 83 B SHALLHOUTH BASS 77 7 SMALLMJUTH BASS 85 8 SMALLMOUTH BASS 83 a SHALLHDUTH BASS 93 10 SNALLMOUTH BASS 94 11 SMALLHOUTH BASS 93 7 SMALLHOUTH BASS 100 13 SNALLNOUTH BASS 125 22 SMALLROUTH BASS 88 9 SMALLMOUTH BASS 88 8 SMALLMOUTH BASS 82 8 SNALLNOUTH BASS 115 20 SNALLMOUTH BASS 103 13 SMALLMOUTH BASS 88 7 SMALLMOUTH BASS 65 3 LAR6EMOUTH BASS 12B 25 LAR6EMOUTH BASS 125 25 LARGEMOUTH BASS 130 28 BLACK CRAPPIE 93 to BANDED DARTER 47 1 LO6PERCH 95 8 LOSPERCH 96 9 LOGPERCH 85 6 LOPERCH 92 7 BLACKSIDE DARTER 67 2 BLACKSIDE DARTER 65 2 DATE: 14MAR89 GIZZARD SHAD 127 17 GIZZARD SHAD 133 20 HORNYHEAD CHUB 83 7 GOLDEN SHINER 90 GOLDEN SHINER 102 1 SPOTFIN SHINER 91 SPOTFIN SHINER 83 SPOTFIN SHINER 70 SPOTFIN SHINER 72 SPOTFIN SHINER 62 SPOTFIN SHINER 84 SPOTFIN SHINER 72 SPOTFIN SHINER 67 SPOTFIN SHINER 71 SPOTFIN SHINER 73 SPOTFIN SHINER 84 SPOTFIN SHINER 81 SPOTFIN SHINER 61 SPOTFIN SHINER 72 SPOTFIN SHINER 65 SPOTFIN SHINER 83 65 MIMIC SHINER 51 MIMIC SHINER 61i MIMIC SHINER 57 SPOTFIN X RED SHINER 61 2 BLUNTNOSE MINNOW 84 BLUNTNOSE MINNOW 72 FATHEAD MINNOW 70 FATHEAD MINNOW 65 FATHEAD MINNOW 61 FATHEAD MINNOW 67 2 BULLHEAD MINNOW 70 4 SHORTHEAD REDHORSE 130 22 BLACK BULLHEAD 115 20 STONECAT 172 50 STONECAT 178 50 STONECAT 185 45 BROOK SILVERSIDE 64 BROOK SILVERSIDE 74 BROOK SILVERSIDE 75 4

G-65 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 78 -- ROCK BASS 113 31 ROCK BASS 74 8 ROCK BASS 70 7 ROCK BASS 70 7 ROCK BASS 70 9 ROCK BASS 61 5 ROCK BASS 60 5 ROCK BASS 50 3 ROCK BASS 54 6 ROCK BASS 64 5 ROCK BASS 63 5 ROCK BASS 63 5 ROCK BASS 57 4 ROCK BASS 52 3 ROCK BASS 47 1 ROCK BASS 50 2 ROCK BASS 55 4 ROCK BASS 45 1 ROCK BASS 43 1 ROCK BASS 44 1 GREEN SUNFISH 115 28 GREEN SUNFISH 82 it GREEN SUNFISH 42 1 GREEN SUNFISH 39 1 GREEN SUNFISH 35 1 GREEN SUNFISH 36 1 GREEN SUNFISH 42 1 GREEN SUNFISH 40 1 GREEN SUNFISH 32 1 ORANGESPOTTED SUNFISH 75 8 BLUEGILL 77 8 BLUEGILL 81 10 BLUEGILL 55 2 BLUEGILL 54 2 BLUEGILL 45 1 LONGEAR SUNFISH 49 2 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 46 1 LONGEAR SUNFISH 45 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 42 1 LONGEAR SUNFISH 39 1 SMALLNOUTH BASS 155 50 SNALLNOUTH BASS 136 32 SMALLNOUTH BASS 86 8 SNALLMOUTH BASS 92 9 SMALLMOUTH BASS 75 5 SMALLNOUTH BASS 126 25 SMALLMOUTH BASS 115 18 SMALLNOUTH BASS 96 11 SMALLMOUTH BASS 97 I1 SNALLLOUTH BASS 77 5 SMALLNOUTH BASS 85 8 SMALLMOUTH BASS 85 8 SMALLNOUTH BASS 77 5 LARGENOUTH BASS 78 7 LOGPERCH 95 9 LO6PERCH 97 8 BLACKSIDE DARTER 80 7 BLACKSIDE DARTER 75 6 •BLACKSIDE DARTER 64 3 DATE: 15MAR09 GIZZARD SHAD 134 20 GIZZARD SHAD 103 1o GIZZARD SHAD 114 13 GIZZARD SHAD 113 11 HORNYHEAD CHUB 74 5

G-66 1988-89 BRAIDHOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH HEIGHT COUNT HEIGHT SPOTFIN SHINER 76 SPOTFIN SHINER 76 SPOTFIN SHINER 65 SPOTFIN SHINER 92 SPOTFIN SHINER 84 SPOTFIN SHINER 70 SPOTFIN SHINER 74 SPOTFIN SHINER 58 SPOTFIN SHINER 73 SPOTFIN SHINER 73 SPOTFIN SHINER 78 SPOTFIN SHINER 72 SPOTFIN SHINER 60 SPOTFIN SHINER 68 SPOTFIN SHINER 64 SPOTFIN SHINER 69 SPOTFIN SHINER 81 SPOTFIN SHINER 81 SPOTFIN SHINER 93 SPOTFIN SHINER 79 SPOTFIN SHINER 65 SPOTFIN SHINER 70 SPOTFIN SHINER 72 SPOTFIN SHINER 72 SPOTFIN SHINER 76 SPOTFIN SHINER 84 SPOTFIN SHINER 71 SPOTFIN SHINER 85 SPOTFIN SHINER 75 SPOTFIN SHINER 67 117 SPOTFIN SHINER 6 36 MIMIC SHINER 53 MIMIC SHINER 54 MIMIC SHINER 49 MIMIC SHINER 62 MIMIC SHINER 51 MIMIC SHINER 53 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 71 BLUNTNOSE MINNOW 87 14 FATHEAD MINNOW 62 2 BULLHEAD MINNOW 72 3 CHANNEL CATFISH 72 2 CHANNEL CATFISH 62 1 CHANNEL CATFISH 80 3 CHANNEL CATFISH 57 1 BROOK SILVERSIDE 57 1 ROCK BASS 95 I1 ROCK BASS 56 3 ROCK BASS 57 3 ROCK BASS 70 7 ROCK BASS 65 5 ROCK BASS 72 7 ROCK BASS 67 6 ROCK BASS 61 4 ROCK BASS 65 5 ROCK BASS 55 3 ROCK BASS 53 3 ROCK BASS 62 4 ROCK BASS 59 3 ROCK BASS 57 3 ROCK BASS 79 8 ROCK BASS 54 3 ROCK BASS 79 9 ROCK BASS 61 5 ROCK BASS 53 5 ROCK BASS 5I 4 ROCK BASS 42 2 ROCK BASS 64 5 ROCK BASS 65 5 ROCK BASS 75 9

G-67 1988-B9 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH NEIHT COUNT WEI6HT ROCK BASS 43 3 ROCK BASS 81 8 ROCK BASS 61 4 ROCK BASS 67 5 ROCK BASS 62 4 ROCK BASS 21 84 ORANGESPOTTED SUNFISH 42 2 ORANGESPOTTED SUNFISH 82 11 ORANGESPOTTED SUNFISH 84 12 ORAN6ESPOTTED SUNFISH 85 12 ORANGESPOTTED SUNFISH 85 13 ORANGESPOTTED SUNFISH 86 13 ORANGESPOTTED SUNFISH 95 16 ORANGESPOTTED SUNFISH 73 7 ORANGESPOTTED SUNFISH 68 5 ORANGESPOTTED SUNFISH 77 9 BLUEGILL 94 17 BLUEGILL 111 27 BLUESILL 64 4 BLUEGILL 62 4 BLUE6ILL 52 2 BLUEGILL 63 3 BLUEGILL 52 2 BLUEGILL 47 1 BLUEGILL 44 1 BLUEGILL 46 1 BLUEGILL 51 1 BLUEGILL 52 2 BLUEGILL 41 1 BLUEGILL 43 1 LONGEAR SUNFISH 88 14 LONGEAR SUNFISH 105 27 LONGEAR SUNFISH 65 5 LONGEAR SUNFISH 62 5 LONGEAR SUNFISH 82 11 LONGEAR SUNFISH 65 6 LONGEAR SUNFISH 61 5 LONGEAR SUNFISH 51 2 LONGEAR SUNFISH 57 3 LONBEAR SUNFISH 51 2 LONGEAR SUNFISH 47 I LONSEAR SUNFISH 46 1 LONGEAR SUNFISH 41 a LON6EAR SUNFISH 37 1 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 47 1 LONGEAR SUNFISH 40 1 LONBEAR SUNFISH 47 1 LONGEAR SUNFISH 40 1 LONSEAR SUNFISH 43 1 LONGEAR SUNFISH 48 1 LONGEAR SUNFISH 35 1 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 38 I LONGEAR SUNFISH 36 1 LON6EAR SUNFISH 38 1 LON6EAR SUNFISH 41 1 LONGEAR SUNFISH 3 a SNALLHOUTH BASS 8§ SMALLMOUTH BASS 68 4 SMALLHOUTH BASS 103 12 SNALLROUTH BASS 76 4 SMALLMOUTH BASS 98 11 SNALLOUTH BASS 122 16 SMALLMOUTH BASS 91 8 RAINBOW DARTER 47 2 LOGPERCH 81 5 LOGPERCH 87 6

G-68 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEI6HT COUNT WEIGHT BLACKSIDE DARTER 67 4 BLACKSIDE DARTER 61 2 BLACKSIDE DARTER 70 5 BLACKSIDE DARTER 81 5 BLACKSIDE DARTER 71 5 BLACKSIDE DARTER 72 5 BLACKSIDE DARTER 71 5 BLACKSIDE DARTER 65 4 DATE: 20MAR89 GIZZARD SHAD 97 8 COMMON CARP 192 I15 GOLDEN SHINER 91 8 STRIPED SHINER 88 STRIPED SHINER 65 STRIPED SHINER 69 STRIPED SHINER 66 STRIPED SHINER 65 STRIPED SHINER 73 STRIPED SHINER 81 STRIPED SHINER 66 STRIPED SHINER 70 STRIPED SHINER 61 STRIPED SHINER 60 38 ROSYFACE SHINER 66 ROSYFACE SHINER 67 SPOTFIN SHINER 75 SPOTFIN SHINER 80 SPOTFIN SHINER 78 SPOTFIN SHINER 82 SPOTFIN SHINER 72 SPOTFIN SHINER 58 SPOTFIN SHINER 73 SPOTFIN SHINER 72 SPOTFIN SHINER 50 SPOTFIN SHINER 77 SPOTFIN SHINER 65 SPOTFIN SHINER 77 SPOTFIN SHINER 62 SPOTFIN SHINER 81 SPOTFIN SHINER 55 SPOTFIN SHINER 81 SPOTFIN SHINER 63 62 SAND SHINER 63 2 MIMIC SHINER 59 2 BLUNTNOSE MINNOW 77 BLUNTNOSE MINNOW 85 BLUNTNOSE MINNOW 80 BLUNTNOSE MINNOW 80 BLUNTMOSE MINNOW 81 BLUNTNOSE MINNOW 72 BLUNTNOSE MINNOW 83 BLUNTNOSE MINNOW 83 BLUNTNOSE MINNOW 62 DLUNTNOSE MINNOW 79 BLUNTNOSE MINNOW 74 BLUNTNOSE MINNOW 85 BLUNTNOSE MINNOW 75 BLUNTNOSE MINNOW 70 BLUNTNOSE MINNOW 65 BLUNTNOSE MINNOW 80 BLUNTNOSE MINNOW 62 FATHEAD MINNOW 71 FATHEAD MINNOW 64 YELLOW BULLHEAD 83 7 STONECAT 123 19 STONECAT 145 29 STONECAT 106 9 BROOK SILVERSIDE 72 BROOK SILVERSIDE 65

G-69 1988-89 BRAIDNOOD STATION IBPINGENENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 12 9 , ROCK BASS 76 9 ROCK BASS 100 21 ROCK BASS 110 33 ROCK BASS 154 85 ROCK BASS 77 10 ROCK BASS 67 6 ROCK BASS 70 7 ROCK BASS 76 10 ROCK BASS 72 B ROCK BASS 62 6 ROCK BASS 70 7 ROCK BASS 66 6 ROCK BASS 64 5 ROCK BASS 67 6 ROCK BASS 74 8 ROCK BASS 68 6 ROCK BASS 60 5 ROCK BASS 104 22 ROCK BASS 71 7 ROCK BASS 67 6 ROCK BASS 59 4 ROCK BASS 61 4 ROCK BASS 64 5 ROCK BASS 62 6 ROCK BASS 53 5 ROCK BASS 51 4 ROCK BASS 69 8 ROCK BASS 64 6 ROCK BASS 6i 27i GREEN SUNFISH 123 4i GREEN SUNFISH 131 49 GREEN SUNFISH 104 23 GREEN SUNFISH 80 11 GREEN SUNFISH 86 16 GREEN SUNFISH 36 1 ORANGESPOTTED SUNFISH 84 13 ORANGESPOTTED SUNFISH 70 6 ORANGESPOTTED SUNFISH 62 5 ORANGESPOTTED SUNFISH 62 5 BLUEGILL 126 60 BLUEGILL 150 70 BLUEGILL 77 8 BLUEGILL 86 13 BLUEGILL 70 6 BLUEGILL 62 5 BLUEGILL 62 5 BLUEGILL 63 6 BLUEGILL 54 2 BLUEGILL 45 2 BLUEGILL 50 3 BLUEGILL 33 1 BLUEGILL 56 3 BLUEGILL 54 3 BLUESILL 50 2 BLUEGILL 53 3 BLUEGILL 51 2 BLUEGILL 29 1 LONGEAR SUNFISH 106 27 LONGEAR SUNFISH 113 38 LONGEAR SUNFISH 102 26 LONGEAR SUNFISH 83 14 LONGEAR SUNFISH 64 7 LONGEAR SUNFISH 78 11 LONGEAR SUNFISH 82 12 LONGEAR SUNFISH 46 2 LONGEAR SUNFISH 50 3 LONGEAR SUNFISH 47 2 LONGEAR SUNFISH 37 1 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 45 2

G-70 1989-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH NEI6HT COUNT WEIGHT LON...... E...... R..SUNFIS 39 -- LON6EAR SUNFISH 39 1 LONGEAR SUNFISH 386 LONGEAR SUNFISH 36 1 LONGEAR SUNFISH 34 1 LON6EAR SUNFISH 39 1 LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 36 1 LONGEAR SUNFISH 30 I LON6EAR SUNFISH 34 1 LUN6EARLONGEAR SUNFISH 33 1 LONGEAR SUNFISH 34 1 SMALLMOUTH BASS 100 13 SMALLMOUTH BASS 126 27 SMALLHOUTH BASS 67 3 SNALLMOUTH BASS 113 16 SMALLHOUTH BASS 106 15 SMALLMOUTH BASS 87 8 SMALLNOUTH BASS 76 6 SMALLHOUTH BASS 93 12 SMALLMOUTH BASS 92 11 SMALLHOUTH BASS 110 17 SMALLMOUTH BASS 96 14 SMALLMOUTH BASS 108 16 SMALLMOUTH BASS 83 9 LARGEMOUTH BASS 190 105 WHITE CRAPPIE 103 12 BLACK CRAPPIE 99 13 BLACK CRAPPIE 97 12 BLACK CRAPPIE 73 4 BLACK CRAPPIE 81 7 DATE: 21MAR89 GIZZARD SHAD 122 17 COMMON CARP 215 170 GOLDEN SHINER 95 8 STRIPED SHINER 74 STRIPED SHINER 72 STRIPED SHINER 30 SPOTFIN SHINER 91 SPOTFIN SHINER 79 SPOTFIN SHINER 66 SPOTFIN SHINER 87 SPOTFIN SHINER 66 SPOTFIN SHINER 81 SPOTFIN SHINER 88 SPOTFIN SHINER 70 SPOTFIN SHINER 74 MINIC SHINER 52 BLUNTNOSE MINNOW 81 BLUNTNOSE MINNOW 77 BLUNTNOSE MINNOW 81 2 BLUNTNOSE MINNOW 76 BLUNTNOSE MINNOW 46 FATHEAD MINNOW 63 BULLHEAD MINNOW 61 I32 YELLOW BULLHEAD tot 13 BROOK SILVERSIDE 68 2 ROCK BASS 66 7 ROCK BASS 66 7 ROCK BASS 80 II ROCK BASS 78 14 ROCK BASS 68 6 ROCK BASS 71 ROCK BASS 71 8 ROCK BASS 64 6 ROCK BASS 65 5 ROCK BASS 62 6 ROCK BASS 52 3

G-71 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ROCK BASS 51 3 GREEN SUNFISH 87 14 GREEN SUNFISH 41 1 BLUEGILL 172 100 LONGEAR SUNFISH 127 45 LONGEAR SUNFISH 80 12 LONGEAR SUNFISH 41 2 SMALLMOUTH BASS 102 14 SMALLMOUTH BASS 93 10 SMALLHOUTH BASS 77 5 DATE: 22MAR89 GOLDEN SHINER 91 8 STRIPED SHINER 75 STRIPED SHINER 73 STRIPED SHINER 60 STRIPED SHINER 76 STRIPED SHINER 70 STRIPED SHINER 82 STRIPED SHINER 77 STRIPED SHINER 60 STRIPED SHINER 42 STRIPED SHINER 65 31 ROSYFACE SHINER 67 ROSYFACE SHINER 57 ROSYFACE SHINER 55 ROSYFACE SHINER 56 ROSYFACE SHINER 61 ROSYFACE SHINER 48 SPOTFIN SHINER 84 SPOTFIN SHINER 77 SPOTFIN SHINER 83 SPOTFIN SHINER 72 SPOTFIN SHINER 78 SPOTFIN SHINER 66 SPOTFIN SHINER 81 SPOTFIN SHINER 62 SPOTFIN SHINER 66 SPOTFIN SHINER 01 SPOTFIN SHINER 66 SPOTFIN SHINER 82 SPOTFIN SHINER 74 SPOTFIN SHINER 75 SPOTFIN SHINER 64 SPOTFIN SHINER 65 SPOTFIN SHINER 65 SPOTFIN SHINER 63 SPOTFIN SHINER 68 SPOTFIN SHINER 71 SPOTFIN SHINER 67 SPOTFIN SHINER 59 SPOTFIN SHINER 70 SPOTFIN SHINER 64 SPOTFIN SHINER 66 58 SAND SHINER 61 2 MIMIC SHINER 61 MIMIC SHINER 47 MIMIC SHINER 53 MIMIC SHINER 61 MIMIC SHINER 53 MIMIC SHINER 52 MIMIC SHINER 69 MIMIC SHINER 59 MIMIC SHINER 47 MIMIC SHINER 47 MIMIC SHINER 48 MIMIC SHINER 51 MIMIC SHINER 52 MIMIC SHINER 51 MIMIC SHINER 46

G -72 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT MIMIC SHINER 48 MIMIC SHINER 53 23 SUCKERMOUTH MINNOW 50 2 BLUNTNOSE MINNOW 86 BLUNTNOSE MINNOW 69 BLUNTNOSE MINNOW 04 BLUNINOSE MINNOW 83 BLUNTNOSE MINNON 82 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 82 BLUNTNOSE MINNOW 76 BLUNTNOSE MINNOW 62 BLUNTNOSE MINNOW 71 BLUNTNOSE MINNOW 72 BLUNTNOSE MINNOW 70 BLUNTNOSE MINNOW 56 29 FATHEAD MINNOW 68 FATHEAD MINNOW 66 FATHEAD MINNOW 43 FATHEAD MINNOW 66 SILVER REDHORSE 105 16 GOLDEN REDHORSE 67 3 CHANNEL CATFISH 328 280 CHANNEL CATFISH 97 8 BROOK SILVERSIDE 72 BROOK SILVERSIDE 82 BROOK SILVERSIDE 87 BROOK SILVERSIDE 65 BROOK SILVERSIDE 74 BROOK SILVERSIDE 69 BROOK SILVERSIDE 83 BROOK SILVERSIDE 63 BROOK SILVERSIDE 71 BROOK SILVERSIDE 73 BROOK SILVERSIDE 76 BROOK SILVERSIDE 72 19 ROCK BASS 198 190 ROCK BASS 75 9 ROCK BASS 56 4 ROCK BASS 77 to ROCK BASS 75 9 ROCK BASS 72 9 ROCK BASS 70 7 ROCK BASS 61 6 ROCK BASS 63 7 ROCK BASS 55 5 ROCK BASS 52 4 ROCK BASS 72 8 ROCK BASS 65 5 ROCK BASS 70 7 ROCK BASS 62 5 ROCK BASS 65 7 ROCK BASS 65 7 ROCK BASS 66 7 ROCK BASS 66 7 ROCK BASS 61 6 ROCK BASS 64 7 ROCK BASS 66 8 ROCK BASS 53 4 ROCK BASS 58 4 ROCK BASS 54 4 ROCK BASS 37 1 ROCK BASS 43 2 ROCK BASS 45 3 ROCK BASS 52 4 ROCK BASS 60 5 ROCK BASS 123 615 ROCK BASS 6i 5 GREEN SUNFISH 92 17 GREEN SUNFISH 50 2 GREEN SUNFISH 36 1

G-73 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT HEIGHT GREEN SUNFISH 43 1 GREEN SUNFISH 39 1 GREEN SUNFISH 33 1 ORAN6ESPOTTED SUNFISH 96 20 ORANGESPOTTED SUNFISH 93 20 ORANGESPOTTED SUNFISH 84 13 ORAN6ESPOTTED SUNFISH 83 13 ORANGESPOTTED SUNFISH 80 12 BLUEGILL 165 90 BLUE6ILL 174 145 BLUE61LL 54 3 BLUE6ILL 31 1 LONGEAR SUNFISH 97 20 LON6EAR SUNFISH 86 16 LONGEAR SUNFISH 75 8 LONGEAR SUNFISH 72 7 LON6EAR SUNFISH 52 3 LONGEAR SUNFISH 58 4 LONGEAR SUNFISH 41 ! LONGEAR SUNFISH 43 1 LONBEAR SUNFISH 40 1 LONGEAR SUNFISH 51 2 LONGEAR SUNFISH 32 1 LONGEAR SUNFISH 50 2 LONGEAR SUNFISH 48 2 LONGEAR SUNFISH 41 1 LONMEAR SUNFISH 42 I LONGEAR SUNFISH 43 I LONGEAR SUNFISH 36 1 LON6EAR SUNFISH 35 1 LONGEAR SUNFISH 36 1 LONGEAR SUNFISH 37 1 LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 30 1 LONGEAR SUNFISH 44 1 LONGEAR SUNFISH 35 1 LONGEAR SUNFISH 33 1 LONGEAR SUNFISH 36 1 LONGEAR SUNFISH 30 1 LONGEAR SUNFISH 39 1 LONGEAR SUNFISH 33 1 LONGEAR SUNFISH 32 1 LONGEAR SUNFISH I SMALLMOUTH BASS 133 22 SMALLMOUTH BASS 94 10 SMALLMOUTH BASS 103 12 SNALLMOUTH BASS 114 19 SMALLNOUTH BASS 87 9 SMALLMOUTH BASS 90 8 SMALLMOUTH BASS 92 10 SMALLMOUTH BASS 76 5 SNALLMOUTH BASS 80 6 SMALLNOUTH BASS 85 6 YELLOW PERCH 105 12 LOGPERCH 82 6 LOSPERCH 82 5 LO6PERCH 86 6 BLACKSIDE DARTER 65 4 BLACKSIDE DARTER 65 4 BLACKSIDE DARTER 63 3 BLACKSIDE DARTER 65 4 BLACKSIDE DARTER 57 3 BLACKSIDE DARTER 53 2 BLACKSIDE DARTER 54 2 DATE: 27MAR89 GOLDEN SHINER 142 41 GOLDEN SHINER 79 GOLDEN SHINER 74 GOLDEN SHINER 83

G-74 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GOLDEN SHINER 69 GOLDEN SHINER 51 GOLDEN SHINER 62 2i MIMIC SHINER 57 1 BULLHEAD MINNOW 57 1 BLACK BULLHEAD 127 21 ROCK BASS 195 200 ROCK BASS 212 230 ROCK BASS 133 55 ROCK BASS 85 19 ROCK BASS 0t1 23 ROCK BASS 82 15 ROCK BASS 74 7 ROCK BASS 71 6 ROCK BASS 65 6 ROCK BASS 61 4 ROCK BASS 81 9 ROCK BASS 71 7 ROCK BASS 77 11 ROCK BASS 59 5 ROCK BASS 60 5 ROCK BASS 56 3 ROCK BASS 61 4 ROCK BASS 54 3 ROCK BASS 53 3 ROCK BASS 54 4 ROCK BASS 57 4 ROCK BASS 36 1 ROCK BASS 45 2 ROCK BASS 55 3 BLUEGILL 46 2 LONGEAR SUNFISH 100 24 LONGEAR SUNFISH 95 23 LON6EAR SUNFISH 81 to LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 46 2 LONGEAR SUNFISH 43 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 36 1 LONGEAR SUNFISH 37 1 LONGEAR SUNFISH 31 1 SMALLHOUTH BASS 305 520 SNALLMOUTH BASS 324 410 SMALLMOUTH BASS 96 11 SNALLMOUTH BASS 176 65 SNALLNOUTH BASS 134 31 SMALLMOUTH BASS 105 15 SNALLNOUTH BASS 85 6 SNALLNOUTH BASS 79 5 SNALLNOUTH BASS 71 4 SNALLNOUTH BASS 77 5 WHITE CRAPPIE 47 2 WHITE CRAPPIE 197 100 BLACK CRAPPIE 235 310 LOGPERCH 74 4 LOSPERCH 80 6 DATE: 28MAR89 GOLDFISH 178 125 CHANNEL CATFISH 82 4 I STONECAT 167 35 ROCK BASS 192 190 ROCK BASS 76 8 I DATE: IOAPR89 GIZZARD SHAD 126 16 GIZZARD SHAD lot 10 GIZZARD SHAD 95 6 COMMON CARP 252 280

G-75 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GOLDEN SHINER 98 7 ROSYFACE SHINER 61 1 SPOTFIN SHINER 84 SPOTFIN SHINER 63 SPOTFIN SHINER 62 SPOTFIN SHINER 61 SPOTFIN SHINER 65 SPOTFIN SHINER 67 SPOTFIN SHINER 60 19 MIMIC SHINER 62 MIMIC SHINER 49 BULLHEAD MINNOW 58 2 BROOK SILVERSIDE 62 BROOK SILVERSIDE 62 BROOK SILVERSIDE 71 ROCK BASS 82 11 ROCK BASS 81 7 ROCK BASS 79 10 ROCK BASS 67 7 ROCK BASS 65 6 ROCK BASS 77 7 ROCK BASS 63 5 ROCK BASS 62 5 ROCK BASS 59 4 ROCK BASS 55 3 ROCK BASS 53 3 ROCK BASS 58 4 ROCK BASS 53 3 ROCK BASS 50 2 ROCK BASS 47 2 ROCK BASS 39 1 ROCK BASS 39 1 ORANGESPOTTED SUNFISH 103 27 ORANGESPOTTED SUNFISH 76 9 ORANGESPOTTED'SUNFISH 45 2 ORANGESPOTTED SUNFISH 42 1 ORANGESPOTTED SUNFISH 43 1 BLUEGILL 62 4 BLUEGILL 64 5 BLUEGILL 55 3 BLUEGILL 53 2 BLUEGILL 4B 2 BLUEGILL 57 3 BLUEGILL 47 2 BLUEGILL 35 1 LONGEAR SUNFISH 70 7 LONGEAR SUNFISH 55 4 LONGEAR SUNFISH 58 4 LONGEAR SUNFISH 44 2 SNALLMOUTH BASS 8B 8 BLACK CRAPPIE 85 8 BLACK CRAPPIE 101 12 DATE: IIAPR89 GIZZARD SHAD 189 50 GIZZARD SHAD 122 16 GIZZARD SHAD 102 7 GIZZARD SHAD 113 12 GIZZARD SHAD 110 12 GIZZARD SHAD 1to It GIZZARD SHAD 113 12 HORNYHEAD CHUB 61 3 STRIPED SHINER 79 STRIPED SHINER 105 18 ROSYFACE SHINER 64 ROSYFACE SHINER 57 SPOTFIN SHINER 61 a SPOTFIN SHINER 69 a SPOTFIN SHINER 71 SPOTFIN SHINER 80 12

G-76 1980-89 BRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT MIMIC SHINER 60 MIMIC SHINER 57 MIMIC SHINER 60 BULLHEAD MINNOW 66 BULLHEAD MINNOW 59 BULLHEAD MINNOW 60 BULLHEAD MINNOW 60 10 SHORTHEAD REDHORSE 65 2 BROOK SILVERSIDE 58 BROOK SILVERSIDE 53 BROOK SILVERSIDE 64 BROOK SILVERSIDE 65 BROOK SILVERSIDE 72 BROOK SILVERSIDE 67 BROOK SILVERSIDE 81 ROCK BASS 72 5 ROCK BASS 75 9 ROCK BASS 71 7 ROCK BASS 57 4 ROCK BASS 75 9 ROCK BASS 74 7 ROCK BASS 61 4 ROCK BASS 56 4 ROCK BASS 47 2 ROCK BASS 52 3 ROCK BASS 56 4 ROCK BASS 59 5 ROCK BASS 56 4 ROCK BASS 57 4 ROCK BASS 53 3 ROCK BASS 49 2 ROCK BASS 49 3 ROCK BASS 49 2 ROCK BASS 43 2 ROCK BASS 41 1 ROCK BASS 44 1 ROCK BASS 34 1 ROCK BASS 35 1 ROCK BASS 43 1 GREEN SUNFISH 3B 1 GREEN SUNFISH 36 1 BLUEGILL 65 4 BLUEGILL 59 3 BLUEGILL 51 1 BLUEGILL 42 1 BLUEGILL 45 1 BLUEGILL 44 1 BLUEGILL 36 1 LONGEAR SUNFISH 58 4 LONGEAR SUNFISH 60 5 LONGEAR SUNFISH 41 2 LONSEAR SUNFISH 36 1 LONGEAR SUNFISH 37 1 LONGEAR SUNFISH 31 1 SHALLMOUTH BASS 115 15 SMALLMOUTH BASS 101 12 SMALLMOUTH BASS 82 6 WHITE CRAPPIE 50 1 BLACK CRAPPIE 84 7 BLACK CRAPPIE 67 4 BLACK CRAPPIE 45 1 JOHNNY DARTER 42 1 LOGPERCH 77 4 BLACKSIDE DARTER 69 4 DATE: 12APR89 GIZZARD SHAD 94 7 GIZZARD SHAD 126 18 GIZZARD SHAD 104 6 GIZZARD SHAD 95

G-77 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT COMMON CARP 242 240 ROSYFACE SHINER 58 2 SPOTFIN SHINER 85 SPOTFIN SHINER 83 SPOTFIN SHINER 63 SPOTFIN SHINER 62 SPOTFIN SHINER 62 SPOTFIN SHINER 55 18 FATHEAD MINNOW 51 1 BULLHEAD MINNOW 68 BULLHEAD MINNOW 61 BULLHEAD MINNOW 61 BULLHEAD MINNOW 62 BULLHEAD MINNOW 60 13 BLACK BULLHEAD 69 5 STONECAT 162 35 BROOK SILVERSIDE 73 1 ROCK BASS 77 8 ROCK BASS 70 6 ROCK BASS 63 5 ROCK BASS 69 7 ROCK BASS 5B 4 ROCK BASS 58 5 ROCK BASS 45 2 ROCK BASS 45 1 ROCK BASS 45 I ORANGESPOTTED SUNFISH 106 30 ORANGESPOTTED SUNFISH 87 13 BLUEGILL 63 4 BLUEGILL 57 3 BLUEGILL 41 1 BLUEGILL 31 1 LONGEAR SUNFISH 61 6 LONGEAR SUNFISH 5 2 LONGEAR SUNFISH 63 2 SNALLNOUTH BASS BO 6 DATE: 19APR89 GIZZARD SHAD 116 12 GIZZARD SHAD 1IG 14 PALLID SHINER 55 2 EMERALD SHINER 65 2 ROSYFACE SHINER 52 ROSYFACE SHINER 60 SPOTFIN SHINER 57 I BLUNTNOSE MINNOW 84 6 FATHEAD MINNOW 42 I BULLHEAD NINNON 57 BULLHEAD MINNOW 60 BULLHEAD MINNOW 72 BULLHEAD WINNOW 55 SPOTTED SUCKER 108 13 CHANNEL CATFISH 662 2910 CHANNEL CATFISH 82 3 BROOK SILVERSIDE 62 1 YELLOW BASS 264 360 ROCK BASS 81 10 ROCK BASS 69 7 ROCK BASS 60 4 GREEN SUNFISH 106 25 BLUEGILL 56 3 BLUEGILL 52 2 BLUEGILL 45 2 BLUEGILL 38 2 BLUEGILL 31 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 45 2 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 41 1 LON6EAR SUNFISH 35 !

G-78 1988-89 BRAIDNOOD STATION IHPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT SNALLHOUTH BASS t49 41 WHITE CRAPPIE 49 WHITE CRAPPIE 84 6 BLACK CRAPPIE 62 3 , f LO6PERCH 67 3 DATE: 24APRB9 GIZZARD SHAD 110 10 MIMIC SHINER 53 1 QUILLBACK 87 9 CHANNEL CATFISH 72 3 BROOK SILVERSIDE 72 1 ROCK BASS 58 2 ROCK BASS 57 4 ROCK BASS 31 1 GREEN SUNFISH 37 1 GREEN SUNFISH 35 1 LONGEAR SUNFISH 41 1 SMALLNOUTH BASS I1o 12 SMALLHOUTH BASS 122 17 WHITE CRAPPIE 134 29 DATE: 25APR89 ROSYFACE SHINER 42 MIMIC SHINER 48 1 FATHEAD MINNOW 65 FATHEAD MINNOW 67 FATHEAD MINNOW 60 22 QUILLBACK 127 36 CHANNEL CATFISH 56 1 STONECAT III to BROOK SILVERSIDE 63 1 ROCK BASS 69 7 ROCK BASS 68 2 ROCK BASS 51 3 ROCK BASS 182 105 LON6EAR SUNFISH 121 41 LONGEAR SUNFISH 91 18 LONGEAR SUNFISH 32 I SHALLMOUTH BASS 93 8 SMALLMOUTH BASS 91 7 WHITE CRAPPIE 67 2 WHITE CRAPPIE 135 30 WHILE CRAPPIE 133 27 LOSPERCH 75 3 DATE: 26APR89 GIZZARD SHAD 149 22 GOLDEN SHINER 96 7 ROSYFACE SHINER 58 1 MIMIC SHINER 52 MIMIC SHINER 51 3 BLUNTNOSE MINNOW 63 BLACK BULLHEAD 72 3 ROCK BASS 67 5 ROCK BASS 60 4 ROCK BASS 61 4 ROCK BASS 42 1 LONGEAR SUNFISH 101 23 SMALLMDUTH BASS 290 315 SMALLMOUTH BASS 120 19 SNALLMOUTH BASS 95 8 LOGPERCH 71 3 DATE: O01AY89 GOLDEN SHINER 103 GOLDEN SHINER 8t

G-79 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT PALLID SHINER 56 2 ROSYFACE SHINER 65 ROSYFACE SHINER 65 ROSYFACE SHINER 60 ROSYFACE SHINER 70 ROSYFACE SHINER 69 ROSYFACE SHINER 67 ROSYFACE SHINER 64 ROSYFACE SHINER 52 7 SPOTFIN SHINER 66 SPOTFIN SHINER 59 SPOTFIN SHINER 53 , SAND SHINER 59 2 MIMIC SHINER 57 MIMIC SHINER 57 3 BULLHEAD MINNON 59 BULLHEAD MINNOW 59 UNID CARPIODES 75 4 GOLDEN REDHORSE 92 7 GOLDEN REDHORSE 62 2 SHORTHEAD REDHORSE 75 4 UNID NOXOSTOMA 69 3 STONECAT 185 70 STONECAT 129 25 ROCK BASS 70 6 ROCK BASS 72 B ROCK BASS 79 9 ROCK BASS 63 4 ROCK BASS 58 4 BLUEGILL 81 10 LONGEAR SUNFISH 38 1 LONGEAR SUNFISH 34 1 SMALLMOUTH BASS 90 6 SMALLWOUTH BASS 77 5 BLACK CRAPPIE 136 31 BLACK CRAPPIE 222 115 BLACK CRAPPIE 44 1 LOGPERCH 76 4 DATE: 02MAY89 PALLID SHINER 57 PALLID SHINER 55 PALLID SHINER 52 i EMERALD SHINER 91 5 STRIPED SHINER 59 2 ROSYFACE SHINER 67 ROSYFACE SHINER 58 ROSYFACE SHINER 54 ROSYFACE SHINER 61 ROSYFACE SHINER 58 ROSYFACE SHINER 63 ROSYFACE SHINER 59 ROSYFACE SHINER 61 SPOTFIN SHINER 70 SPOTFIN SHINER 62 SPOTFIN SHINER 61 SPOTFIN SHINER 61 17 MIMIC SHINER 58 MIMIC SHINER 56 MIMIC SHINER 66 MIMIC SHINER 56 BLUNTNOSE MINNOW 65 4 FATHEAD MINNOW 63 3 BULLHEAD MINNOW 50 i STONECAT 175 65 BROOK SILVERSIDE 66 2 ROCK BASS 63 6 ROCK BASS 83 13 ROCK BASS 68 7 ROCK BASS 60 4

G-80 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEI6HT ROCK.....BAS...... 4...4 ------ROCK BASS 54 4 ROCK BASS 56 4 ROCK ROCK BASS 5052 3 ROCK BASS 40 1 ORANGESPOTTED SUNFISH B2 16 BLUEGILL 63 5 BLUEGILL 44 1 LONGEAR SUNFISH 87 16 SMALLHDU7H BASS 91 7 WHITE CRAPPIE Ito 15 WHITE CRAPPIE 66 3 WHITE CRAPPIE 40 1 LOGPERCH 78 6 LOSPERCH 81 5 LO6PERCH 71 3 DATE: 03HAY89 EMERALD SHINER 86 5 ROSYFACE SHINER 66 2 SPOTFIN SHINER 74 SPOTFIN SHINER 78 MIMIC SHINER 63 MIMIC SHINER 55 MIMIC SHINER 58 MIMIC SHINER 52 MIMIC SHINER 63 BLUNTNOSE MINNOW 64 3 FATHEAD MINNOW 62 2 BULLHEAD MINNOW 52 1 GOLDEN REDHORSE 330 400 CHANNEL CATFISH 193 63 BROOK SILVERSIDE 65 ROCK BASS 75 8 ROCK BASS 66 5 ROCK BASS 61 5 ROCK BASS 57 4 ROCK BASS 60 5 ROCK BASS 45 2 GREEN SUNFISH 142 57 ORANGESPOTTED SUNFISH 37 1 BLUEGILL 147 78 BLUEGILL 151 87 BLUEGILL 177 140 SMALLMOUTH BASS 92 9 SMALLMOUTH BASS 90 7 BLACK CRAPPIE 45 1 LOGPERCH 82 5 DATE: 08MAY89 GOLDEN SHINER 94 9 STRIPED SHINER 48 STRIPED SHINER 44 ROSYFACE SHINER 63 ROSYFACE SHINER 57 SPOTFIN SHINER 73 3 MIMIC SHINER 53 MIMIC SHINER 57 BLUNTNOSE MINNOW 87 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 65 BLUNTNOSE MINNOW 62 OUILLBACK 90 SHORTHEAD REDHORSE 86 6 DATE: 09MAY89 GOLDEN SHINER 98 GOLDEN SHINER 96

G-81 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH #EIGHT COUNT VEI6HT EMERALD SHINER 84 5 STRIPED SHINER 150 39 ROSYFACE SHINER 66 2 SPOTFIN SHINER 90 SPOTFIN SHINER 59 SPOTFIN SHINER 72 SPOTFIN SHINER 61, SPOTFIN SHINER 60 SPOTFIN SHINER 57 19 MIMIC SHINER 49 1 BLUNTNOSE MINNOW 66 BLUNTNOSE MINNOW 63 BLUNTNOSE MINNOW 62 .1 BULLHEAD MINNOW 72 BULLHEAD MINNOW 55 BULLHEAD MINNON 60 BULLHEAD MINNOW 72 14 GOLDEN REDHORSE 350 475 CHANNEL CATFISH 83 4 CHANNEL CATFISH 60 2 GREEN SUNFISH 137 50 SMALLMOUTH BASS 86 6 DATE: IOAY89 PALLID SHINER 57 2 ROSYFACE SHINER 62 ROSYFACE SHINER 65 ROSYFACE SHINER 63 ROSYFACE SHINER 71 ROSYFACE SHINER 61 ROSYFACE SHINER 51 SPOTFIN SHINER 78 SPOTFIN SHINER 66 SAND SHINER 59 BLUNTNOSE MINNOW 67 BLUNTNOSE MINNOW 66 BLUNTNOSE MINNOW 62 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 64 BLUNTNOSE MINNON 64 BLUNTNOSE MINNON 61 BLUNTNOSE MINNOW 67 BLUNTNOSE MINNOW 68 3i CHANNEL CATFISH 67 3 STONECAT 124 21 136 25 STONECAT 8 ROCK BASS 70 ROCK BASS 37 LON6EAR SUNFISH 38 SMALLMOUTH BASS 113 12 DATE: 15HAY89 I ROSYFACE SHINER 43 SPOTFIN SHINER 53 SPOTFIN SHINER 53 SPOTFIN SHINER 52 SAND SHINER 52 BLUNTNOSE MINNOW 63 BLUNTNOSE MINNOW 66 BLUNTNOSE MINNON 67 1 BLUNTNOSE MINNON 62 9LUNTROSE MINNOW 57 FATHEAD MINNOW 58 2 STONECAT 160 STONECAT 77 6 BROOK SILVERSIDE 73 2 ROCK BASS 41 SMALLMOUTH BASS 77 5 SNALLHOUTH BASS 120 16

G-82 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT PALLID SHINER 54 - PALLID SHINER 52 STRIPED SHINER 126 25 ROSYFACE SHINER 67 2 SPOTFIN SHINER 73 SPOTFIN SHINER 74 STONECAT 131 27 STONECAT 172 4B ROCK BASS 62 5 LONGEAR SUNFISH 84 15 SMALLMOUTH BASS 9a 8 WHITE CRAPPIE 60 2 LOGPERCH 70 4 SLENDERHEAD DARTER 79 6 DATE: 17MAY89 GIZZARD SHAD 115 18 GOLDEN SHINER 87 GOLDEN SHINER 92 13 ROSYFACE SHINER 65 i SPOTFIN SHINER 66 2 MIMIC SHINER 46 1 DLUNTNOSE MINNOW 66 BLUNTNOSE MINNOW 62 BLUNTNOSE MINNOW 60 STONECAT 163 38 ROCK BASS 85 7 ROCK BASS 72 4 ROCK BASS 101 8 ROCK BASS 102 10 BLUEGILL 165 I10 DATE: 22MAY89 STRIPED SHINER 182 70 MIMIC SHINER 63 4 SUCKERNOUTH MINNOW 87 8 BLUNTNOSE MINNOW 66 BLUNTNOSE MINNOW 62 7 FATHEAD MINNOW 48 i CHANNEL CATFISH 76 3 ROCK BASS 60 5 GREEN SUNFISH 36 1 LONGEAR SUNFISH 35 1 SMALLMOUTH BASS 95 B DATE: 23MAY89 GIZZARD SHAD 117 10 GOLDEN SHINER 92 GOLDEN SHINER 91 13 MIMIC SHINER 50 MIMIC SHINER 50 BLUNTNOSE MINNOW 95 BLUNTNOSE MINNOW 87 BLUNTNOSE MINNOW 91 24 FATHEAD MINNOW 58 2 OUILLBACK 414 1290 BLACK REDHORSE 272 100 CHANNEL CATFISH 99 7 CHANNEL CATFISH 66 4 BROOK SILVERSIDE 74 BROOK SILVERSIDE 77 ROCK BASS 71 9 ROCK BASS 81 to ROCK BASS 66 7 LONGEAR SUNFISH 38 1 SMALLMOUTH BASS III to SHALLMOUTH BASS 103 8 SHALLHOUTH BASS 85 5

G-83 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT HEIGHT PALLID SHINER 56 2 EMERALD SHINER 95 8 ROSYFACE SHINER 76 3 SPOTFIN SHINER 80 5 BLUNTNOSE MINNOW 51 1 STONECAT 145 34 STONECAT 163 42 SMALLMOUTH BASS 82 5 SMALLMOUTH BASS 102 9 DATE: 29MAY89 PALLID SHINER 55 2 STRIPED SHINER 152 STRIPED SHINER 157 STRIPED SHINER 135 STRIPED SHINER 110 STRIPED SHINER 65 STRIPED SHINER 65 150 ROSYFACE SHINER 67 2 SPOTFIN SHINER 57 2 MIMIC SHINER 55 MIMIC SHINER 57 MIMIC SHINER 52 MIMIC SHINER 53 MIMIC SHINER 52 8 BLUNTNOSE MINNOW 95 BLUNTNOSE MINNOW 72 BLUNTNOSE MINNOW 85 BLUNTNOSE MINNOW 60 2i BULLHEAD MINNOW 67 4 SHORTHEAD REDHORSE 57 2 CHANNEL CATFISH 96 7 STONECAT 64 3 BROOK SILVERSIDE 77 2 BROOK SILVERSIDE 76 2 ROCK BASS 87 14 ROCK BASS 67 7 ROCK BASS 70 7 ROCK BASS 70 7 ROCK BASS 63 6 ROCK BASS 57 4 ROCK BASS 52 3 ROCK BASS 52 3 ROCK BASS 42 1 ROCK BASS 47 2 ROCK BASS 43 2 ORANGESPOTTED SUNFISH 95 23 LON6EAR SUNFISH 52 3 LONGEAR SUNFISH 53 4 LONGEAR SUNFISH 47 2 LONSEAR SUNFISH 42 2 LONGEAR SUNFISH 47 2 LONOEAR SUNFISH 36 1 LONDEAR SUNFISH 33 1 LONGEAR SUNFISH 35 1 LON6EAR SUNFISH 36 1 LON6EAR SUNFISH 40 1 LONGEAR SUNFISH 46 2 LONGEAR SUNFISH 43 2 LON6EAR SUNFISH 38 1 LON6EAR SUNFISH 34 1 LON6EAR SUNFISH 41 1 LONGEAR SUNFISH 36 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 42 2 LONGEAR SUNFISH 36 1 LONSEAR SUNFISH 42 2 LONSEAR SUNFISH 36 1 LONGEAR SUNFISH 35 1 LONBEAR SUNFISH 37 1

G-84 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT LONGEAR SUNFISH 36 1 LONGEAR SUNFISH 31 1 LONGEAR SUNFISH 38 I SMALLMOUTH BASS 113 16 SMALLNOUTH BASS 155 32 SMALLMOUTH BASS 86 7 SMALLHOUTH BASS 70 3 SMALLMOUTH BASS 78 4 SMALLMOUTH BASS 82 4 BLACK CRAPPIE 140 40 BLACKSIDE DARTER 66 2 DATE: 30MAY89 GOLDEN SHINER 69 PALLID SHINER 57 GHOST SHINER 48 GHOST SHINER 47 STRIPED SHINER 118 STRIPED SHINER 60 STRIPED SHINER 77 STRIPED SHINER 80 STRIPED SHINER 61 STRIPED SHINER 81 SPOTFIN SHINER 85 SPOTFIN SHINER 60 SPOTFIN SHINER 70 SAND SHINER 61 MIMIC SHINER 57 MIMIC SHINER 56 MIMIC SHINER 73 MIMIC SHINER 48 BLUNTNOSE MINNOW 70 BLUNTNOSE MINNOW 61 BLUNTNOSE MINNOW 76 FATHEAD MINNOW 55 GOLDEN REDHORSE 65 GOLDEN REDHORSE 64 SHORTHEAD REDHORSE 63 SHORTHEAD REDHORSE 110 UNID MOXOSTONA 51 YELLOW BULLHEAD 136 CHANNEL CATFISH 65 STONECAT 135 STONECAT 151 BROOK SILVERSIDE 72 BROOK SILVERSIDE 78 ROCK BASS 79 ROCK BASS 75 ROCK BASS 60 ROCK BASS 64 ROCK BASS 56 ROCK BASS 54 ROCK BASS 53 ROCK BASS 43 ORANGESPOTTED SUNFISH 88 ORANGESPOTTED SUNFISH 80 ORANGESPOTTED SUNFISH 77 ORANGESPOTTED SUNFISH 52 BLUEGILL 82 LONGEAR SUNFISH 58 LONGEAR SUNFISH 50 LONGEAR SUNFISH 42 LONGEAR SUNFISH 42 LONGEAR SUNFISH 40 LONGEAR SUNFISH 34 LONGEAR SUNFISH 40 LONGEAR SUNFISH 37 1 SMALLMOUTH BASS 110 13 SNALLMOUTH BASS 95 6 SMALLNOUTH BASS 100 7

G-85 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH HEIGHT COUNT HEIGHT SMALLOUTH BASS 78 5 SLENDERHEAD DARTER 53 1 DATE: 31MAY89 NORTHERN PIKE 77 2 NORTHERN PIKE 89 5 GOLDEN SHINER 145 GOLDEN SHINER 112 GOLDEN SHINER 77 70 PALLID SHINER 55 2 PALLID SHINER 47 PALLID SHINER 52 STRIPED SHINER 70 STRIPED SHINER 8o ROSYFACE SHINER 58 ROSYFACE SHINER 56 ROSYFACE SHINER 58 ROSYFACE SHINER 64 SPOTFIN SHINER 55 2 MIMIC SHINER 65 MIMIC SHINER 58 MIMIC SHINER 58 MIMIC SHINER 60 MIMIC SHINER 48 MIMIC SHINER 43 MIMIC SHINER 61 MIMIC SHINER 42 MIMIC SHINER 56 17 BLUNTNOSE MINNOW 88 BLUNTNOSE MINNOW 75 BLUNTNOSE MINNOW 60 BLUNINOSE MINNOW 61 BLUNTNOSE MINNOW 60 2i FATHEAD MINNOW 72 3 BULLHEAD MINNOW 72 BULLHEAD MINNOW 54 BULLHEAD MINNOW 43 GOLDEN REDHORSE 68 UNID MOXOSTOMA 58 2 YELLOW BULLHEAD 142 34 CHANNEL CATFISH 63 2 STONECAT 145 37 STONECAT 175 50 STONECAT 77 3 BROOK SILVERSIDE 65 2 ROCK BASS 62 5 ORANGESPOTTED SUNFISH 76 8 ORANGESPOTTED SUNFISH 92 18 ORANGESPOTTED SUNFISH 85 14 LONGEAR SUNFISH 48 2 LONGEAR SUNFISH 44 1 LONGEAR SUNFISH 50 3 LONGEAR SUNFISH 48 2 LONGEAR SUNFISH 43 1 SMALLMOUTH BASS 84 6 SNALLNOUTH BASS 164 50 SMALLMOUTH BASS 80 4 SMALLMOUTH BASS 130 18 WHITE CRAPPIE 115 16 DATE: 05JUN89 GRASS PICKEREL 83 4 PALLID SHINER 58 2 STRIPED SHINER 177 STRIPED SHINER 69 STRIPED SHINER 88 STRIPED SHINER 63 STRIPED SHINER 54 9i SPOTFIN SHINER 81

G-86 1989-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT SPOTFIN SHINER 82 , SPOTFIN SHINER 65 18 SAND SHINER 62 2 MIMIC SHINER 62 MIMIC SHINER 63 BLUNTNOSE MINNOW 95 9 UNID MOROSTONA 56 1 ORANGESPOTTED SUNFISH 52 2 ORANGESPOTTED SUNFISH 50 2 BLUEGILL 73 6 SNALLMOUTH BASS 123 12 SMALLMOUTH BASS 81 5 SMALLMOUTH BASS 83 6 SMALLHOUTH BASS 86 7 DATE: 06JUN89 PALLID SHINER 55 2 STRIPED SHINER 128 STRIPED SHINER 91 STRIPED SHINER 87 STRIPED SHINER 9B STRIPED SHINER 87 SPOTFIN SHINER 62 SPOTFIN SHINER 67 9 5i SPOTFIN SHINER 60 SPOTFIN SHINER 83 BLUNTNOSE MINNOW B8 RIVER REDHORSE 107 12 TADPOLE MADTON 76 5 ROCK BASS 67 6 SMALLHOUTH BASS 91 BLACK CRAPPIE 52 2 DATE: 07JUN89 GIZZARD SHAD 208 55 GOLDEN SHINER 81 4 STRIPED SHINER 137 STRIPED SHINER 184 STRIPED SHINER 78 STRIPED SHINER 135 STRIPED SHINER 70 165 ROSYFACE SHINER 71 ROSYFACE SHINER 58 ROSYFACE SHINER 68 SPOTFIN SHINER 72 2 SPOTFIN SHINER 77 SPOTFIN SHINER 80 SPOTFIN SHINER 81 MIMIC SHINER 65 SILVER REDHORSE 118 20 YELLOW BULLHEAD 172 55 CHANNEL CATFISH 76 4 ROCK BASS 83 14 ORANGESPOTTED SUNFISH 77 to LONGEAR SUNFISH 36 1 SMALLMOUTH BASS 104 7 BANDED DARTER 42 1 DATE: 12JUN89 HORNYHEAD CHUB 124 22 STRIPED SHINER 175 70 SPOTFIN SHINER 72 4 MIMIC SHINER 56 2 BLUNTNOSE MINNOW 91 9 BULLHEAD MINNOW 63 4 SHORTHEAD REDHORSE 83 5 CHANNEL CATFISH 92 7 ROCK BASS 69 7

G-87 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT WHITE CRAPPIE 140 33 DATE; 13JUN89 GIZZARD SHAD 212 60 MIMIC SHINER St I BLUNTNOSE MINNOW 96 10 BULLHEAD MINNOW 72 4 ROCK BASS 63 5 ROCK BASS 70 6 ROCK BASS 70 7 ROCK BASS 70 8 ROCK BASS 59 4 GREEN SUNFISH 36 1 ORANGESPOTTED SUNFISH 43 1 BLUEGILL 61 4 LONGEAR SUNFISH 53 3 DATE: 14JUN89 HORNYHEAD CHUB 95 11 GHOST SHINER 50 2 STRIPED SHINER 11o STRIPED SHINER 78 23 ROSYFACE SHINER 70 3 SPOTFIN SHINER 90 SPOTFIN SHINER 64 SPOTFIN SHINER 70 1i MIMIC SHINER 69 MIMIC SHINER 52 MIMIC SHINER 51 BLUNTNOSE MINNOW 64 3 OUILLBACK 129 18 SHORTHEAD REDHORSE 97 8 SHORTHEAD REDHORSE 70 4 CHANNEL CATFISH 81 5 STONECAT 170 55 ROCK BASS 47 3 GREEN SUNFISH 32 1 BLUE6ILL 39 1 LONSEAR SUNFISH 50 3 WHITE CRAPPIE 137 28 DATE: 19JUNB9 COMMON CARP 43 2 SPOTFIN SHINER 61 SPOTFIN SHINER 81 MIMIC SHINER 60 2 CHANNEL CATFISH 101 8 GREEN SUNFISH 42 1 ORANGESPOTTED SUNFISH 86 15 ORAN6ESPOTTED SUNFISH 81 12 LONGEAR SUNFISH 120 50 LONGEAR SUNFISH 43 2 LONGEAR SUNFISH 47 2 DATE: 20JUN89 GIZZARD SHAD 200 50 COMMON CARP 46 2 CHANNEL CATFISH 97 8 CHANNEL CATFISH 75 3 ROCK BASS 116 35 ROCK BASS 56 4 BLUEGILL 61 5 LONGEAR SUNFISH 57 4 LONGEAR SUNFISH 42 1 WHITE CRAPPIE 96 10 WHITE CRAPPIE 120 20

G-88 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT

HORNYHEAD CHUB 153 35 STRIPED SHINER 87 STRIPED SHINER 73 STRIPED SHINER 91 18 SPOTFIN SHINER 81 5 SPOTFIN X RED SHINER 72 7 CHANNEL CATFISH 82 6 STONECAT 83 6 ROCK BASS 71 9 BLUEGILL 59 3 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 41 1 LONGEAR SUNFISH 44 2 DATE: 26JUN89 GRASS PICKEREL 101 8 STONECAT 143 42 BLUEGILL 52 2 BLUEGILL 64 5 WHITE CRAPPIE 34 1 DATE: 27JUN89 GRASS PICKEREL 91 6 GRASS PICKEREL 92 6 HORNYHEAD CHUB 74 5 STRIPED SHINER 118 STRIPED SHINER 58 STRIPED SHINER 96 STRIPED SHINER 72 STRIPED SHINER 65 33 SPOTFIN SHINER 96 SPOTFIN SHINER 72 SPOTFIN SHINER 55 SPOTFIN SHINER 84 23 REDFIN SHINER 57 2 BLUNTNOSE MINNOW 90 BLUNTNOSE MINNOW 95 18 BLUE6ILL 40 , LARGENOUTH BASS 54 1 DATE: 28JUN89 HORNYHEAD CHUB 117 18 GHOST SHINER 30 1 STRIPED SHINER 71 STRIPED SHINER 62 STRIPED SHINER 75 11 ROSYFACE SHINER 86 4 SPOTFIN SHINER 66 SPOTFIN SHINER 76 SPOTFIN SHINER 77 SPOTFIN SHINER 84 SPOTFIN SHINER 88 27 CHANNEL CATFISH 61 2 GREEN SUNFISH 37 1 BLACK CRAPPIE 150 41 BLACK CRAPPIE 115 20 DATE: 04JUL89 GOLDEN SHINER 77 6 SPOTFIN SHINER 76 SPOTFIN SHINER 80 SPOTFIN SHINER 62 16 MIMIC SHINER 4B I BLUNTNOSE MINNOW 62 3 GOLDEN REDHORSE 103 14

G-89 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY ...... PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GREEN SUNFISH 47 2 DATE: 05JUL89 STRIPED SHINER 97 11 SPOTFIN SHINER 86 SPOTFIN SHINER 72 SPOTFIN SHINER 82 STONECAT 151 29 STONECAT 162 70 STONECAT 136 27 ROCK BASS 72 10 SMALLHOUTH BASS 134 25 SMALLMOUTH BASS 85 7 BLACK CRAPPIE 94 12 LOGPERCH 82 5 DATE: IOJUL89 HORNYHEAD CHUB 109 14 SPOTFIN SHINER 68 3 BULLHEAD MINNOW 59 3 SMALLOUTH BASS 109 14 DATE: IIJUL89 HORNYHEAD CHUB 92 11 SAND SHINER 62 2 BULLHEAD MINNOW 62 . BULLHEAD MINNOW 63 ROCK BASS 110 26 • ROCK BASS 160 5 LONGEAR SUNFISH 113 41 . DATE: 12JUL89 GRASS PICKEREL 93 6 STRIPED SHINER 88 . STRIPED SHINER 82 . a 1 SPOTFIN SHINER 82 . SPOTFIN SHINER 70 a 1 GOLDEN REDHORSE 342 470 STONECAT 166 43 STONECAT 124 18 STONECAT 163 42 ROCK BASS 62 5 BLUEGILL 53 3 SMALLMOUTH BASS 96 10 DATE: 17JUL89 SPOTFIN SHINER 71 4 MIMIC SHINER 53 1 STONECAT 131 22 ORANGESPOTTED SUNFISH 51 3 BLUEGILL 54 3 SMALLNOUTH BASS 94 10 SMALLMOUTH BASS 94 10 SMALLMOUTH BASS 107 14 SMALLHOUTH BASS 87 10 DATE: 18JUL89 GOLDEN SHINER 84 5 STRIPED SHINER 86 , STRIPED SHINER 76 STRIPED SHINER 91 a STRIPED SHINER 68 20 SPOTFIN SHINER 86 5 a SAND SHINER 62 2 a MIMIC SHINER 67 2 .

G-90 1988-89 DRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT BLACK...... BUL HEA 67 ----5 ----- BLACK BULLHEAD 567 5 BLACK BULLHEAD 51 3 STONECAT 180 13 STONECAT 180 75 ROCK BASS 77 7 ROCK BASS 77 9 ROCK BASS 63 5 ROCK BASS 64 5 ROCK BASS 562 5 ROCK BASS 50 4 ROCK BASS 5450 3 GREEN SUNFISH 42 1 ORANGESPOTTED SUNFISH 4B 2 ORANGESPOTTED SUNFISH 92 15 ORANGESPOTTED SUNFISH 83 16 ORANGESPOTTED SUNFISH 65 6 BLUEGILL 62 7 BLUEGILL 60 5 LONGEAR SUNFISH 67 7 LONGEAR SUNFISH 64 6 LONGEAR SUNFISH 43 2 LONGEAR SUNFISH 56 4 LONGEAR SUNFISH 62 5 LONGEAR SUNFISH 48 3 LONGEAR SUNFISH 57 3 LON6EAR SUNFISH 50 2 LONGEAR SUNFISH 47 2 LONGEAR SUNFISH 48 2 LONGEAR SUNFISH 52 3 LONGEAR SUNFISH 44 2 LONGEAR SUNFISH 54 3 LONGEAR SUNFISH 52 3 LONGEAR SUNFISH 40 1 LONGEAR SUNFISH 44 2 LONSEAR SUNFISH 52 3 LONGEAR SUNFISH 51 3 LONSEAR SUNFISH 50 2 LONGEAR SUNFISH 57 5 LONGEAR SUNFISH 55 4 LONGEAR SUNFISH 48 3 LONGEAR SUNFISH 54 3 LONGEAR SUNFISH 47 2 LONGEAR SUNFISH 47 2 LONGEAR SUNFISH 49 3 LONGEAR SUNFISH 42 2 LONGEAR SUNFISH 43 2 LONGEAR SUNFISH 49 3 LONGEAR SUNFISH 42 2 LONGEAR SUNFISH 6 2 31 SMALLMOUTH BASS 12i 2i LOPERCH 84 6 DATE: 19JUL89 GRASS PICKEREL 82 3 HORNYHEAD CHUB 62 3 EMERALD SHINER 87 4 MIMIC SHINER 43 MIMIC SHINER 58 2 i BLACK BULLHEAD 58 STONECAT 144 30 STONECAT 122 20 ROCK BASS 130 50 ROCK BASS 77 9 ROCK BASS 81 10 ROCK BASS 74 7 ROCK BASS 8O 10 GREEN SUNFISH 135 47 LONGEAR SUNFISH 57 4 LONGEAR SUNFISH 55 3

G-91 1908-89 BRAIDWOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT LONGEAR SUNFISH 51 3 LONGEAR SUNFISH 45 2 SMALLMOUTH BASS 90 9 WHITE CRAPPIE 122 22 DATE: 31JUL89

LON6NOSE BAR 90 2 m 49 I If BLUNTNOSE MINNOW 4 UNID CARPIODES 64 I DATE: OIAUG89 ROCK BASS 80 13 SMALLMOUTH BASS 138 29 DATE: 02AUG89 ROSYFACE SHINER 6i 2 SPOTFIN SHINER 78 BLUNTNOSE MINNOW 44 m DATE: 07AUG89 LONGUOSE BAR 124 2 GOLDEN SHINER 79 5 FATHEAD MINNOW 67 FATHEAD MINNOW 50 BULLHEAD MINNOW 44 SPOTTED SUCKER 106 14 STONECAT 134 24 STONECAT 152 26 STONECAT 134 17 ROCK BASS 80 10 ORANGESPOTTED SUNFISH 78 B LONGEAR SUNFISH 106 22 HYBRID SUNFISH 60 5 SMALLMOUTH BASS 113 13 DATE: OBAUG89 GIZZARD SHAD 344 320 STRIPED SHINER 114 15 GOLDEN REDHORSE 175 65 STONECAT 120 16 STONECAT 160 38 STONECAT 140 25 STONECAT 163 41 STONECAT 160 36 ROCK BASS 76 9 LONGEAR SUNFISH 81 12 SHALLHOUTH BASS 86 8 DATE: 09AUG89 EMERALD SHINER 92 4 GOLDEN REDHORSE 106 20 SHORTHEAD REDHORSE 312 310 CHANNEL CATFISH 134 20 STONECAT 134 22 ORAN6ESPOTTED SUNFISH 69 7 DATE: 14AUG89 MIMIC SHINER 64 2 CHANNEL CATFISH 136 24 STONECAT i18 19 STONECAT 134 27 STONECAT 123 16 ROCK BASS 95 23 ORANGESPOTTED SUNFISH 54 3

G-92 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT ------.------

DATE: 15AU689 STDNECAT 183 47 STONECAT 151 32 STONECAT 124 17 LON6EAR SUNFISH 117 50 DATE: 16AU689 COMMON CARP 265 194 HORNYHEAD CHUB 83 8 MIMIC SHINER 55 2 STONECAT 144 34 STONECAT 152 35 STONECAT 113 23 STONECAT 137 23 ROCK BASS 192 200 ROCK BASS 52 3 ROCK BASS 70 9 GREEN SUNFISH 45 3 BLUEGILL 77 11 LONGEAR SUNFISH 77 9 SMALLMOUTH BASS 99 10 DATE: 17AU689 GIZZARD SHAD 65 3 GOLDEN SHINER 88 8 DATE: 22AUG89

GHOST SHINER 48 1 I ROSYFACE SHINER 66 2 i SPOTFIN SHINER 64 3 I MIMIC SHINER 61 u MIMIC SHINER 57 0 GOLDEN REDHORSE 1O0 17 I i DATE: 23AUG89 GIZZARD SHAD 51 COMMON CARP 300 264 ROSYFACE SHINER 73 3 SPOTFIN SHINER 67 3 MIMIC SHINER 57 1 STONECAT 167 36 LONGEAR SUNFISH 108 32 DATE: 28AUG89

DATE: 29AU689 GIZZARD SHAD 64 2 GIZZARD SHAD 41 1 GOLDEN SHINER 84 6 REDFIN SHINER 80 5 STONECAT 153 23 DATE: 30AUG89

HORNYHEAD CHUB 122 18 II ROSYFACE SHINER 78 2 m ROCK BASS 52 3 I DATE: 04SEP89 GIZZARD SHAD 51 I GIZZARD SHAD 53 I GIZZARD SHAD 51

G-93 1988-89 BRAIDNOOD STATION IMPINGEMENT STUDY ------PLUS BATCH SPECIES LENGTH WEIGHT COUNT WEIGHT GIZZARD SHAD 36 1 GIZZARD SHAD 43 1 COMMON CARP 43 2 SUCKERMOUTH MINNOW 53 2 STONECAT 140 27 STONECAT 133 23 LONGEAR SUNFISH 42 2 DATE: 25SEP89 BLUEGILL 70 7 BLUEGILL 64 6 BLUEGILL 72 17 BLUEGILL 31 BLUEGILL 33 LONGEAR SUNFISH 92 1 LONGEAR SUNFISH 69 8 LONGEAR SUNFISH 57 4 LONGEAR SUNFISH 34 1 DATE: 26SEP99 LONGEAR SUNFISH 115 45 LONGEAR SUNFISH 75 15 DATE: 27SEP89 GIZZARD SHAD 76 4 GIZZARD SHAD 54 2 GIZZARD SHAD 58 2 GIZZARD SHAD 50 2 GOLDEN SHINER 85 5 BLUEGILL 71 6 LONGEAR SUNFISH 64 5 SMALLMOUTH BASS 112 17 LARGENOUTH BASS 59 3 WHITE CRAPPIE 110 17 WHITE CRAPPIE 60 2 DATE: 020CT99 GIZZARD SHAD 73 4 GIZZARD SHAD 83 6 STONECAT 158 39 LONGEAR SUNFISH 77 10 LONGEAR SUNFISH 61 5 DATE: 03OCT89 GIZZARD SHAD 56 2 LONGEAR SUNFISH 67 7 DATE: 040CT89 GIZZARD SHAD 86 6 GIZZARD SHAD 69 4 SHORTHEAD REDHORSE 379 365 YELLOW BASS 153 45

G-94 APPENDIX H

IMPINGEMENT -- TEMPERATURE AND DISSOLVED OXYGEN MEASUREMENTS, 1988-1989

H-1 WATER QUALITY DATA - 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY

WATER TEMPERATURE (C) DISSOLVED OXYGEN (mg/L)

DATE SURFACE MIDDLE BOTTOM SURFACE MIDDLE BOTTOM

11OCT88 11.0 11.0 11.0 1(a) 120CT88 9.2 9.0 9.0 170CT88 14.0 14.0 14.0 180CT88 12.6 12.6 12.4 11.2 11.4 19OCT88 11.7 11.6 11.6 13.8 13.4 13.5 240CT88 7.2 7.0 6.9 10.7 11.0 11. 1 250CT88 7.0 7.0 7.0 12.6 13.0 12.5 26OCT88 7.1 6.8 6.8 11.8 12.2 12.5 31OCT88 7.4 7.3 7.3 13.5 13.5 13.6 01NOV88 6.0 6.0 6.0 13.0 14.0 13.5 02NOV88 6.2 6.2 6.2 13.9 14.1 14.3 07NOV88 6.4 6.2 6.2 15.4 15.6 15.8 08NOV88 6.7 6.6 6.5 16.6 16.4 16.4 09NOV88 6.4 6.3 6.3 16.4 16.6 16.4 11NOV88 7.5 7.4 7.4 13.2 13.4 13.1 15NOV88 9.0 9.0 9.0 13.2 13.0 13.0 16NOV88 7.2 7.2 7.2 13.8 13.2 13.1 21NOV88 6.8 6.4 6.4 16.2 16.4 16.3 22NOV88 6.0 6.0 6.0 12.0 12.4 12.6 28NOV88 5.4 5.3 5.2 12.8 13.0 12.9 29NOV88 5.0 4.9 4.9 13.9 13.9 14.0 30NOV88 3.2 3.1 3.1 16.2 16.4 16.3 05DEC88 3.4 3.3 3.3 13.2 13.6 13.6 .06DEC88 3.0 3.0 3.4 17.0 16.0 15.2 07DEC88 2.9 3.0 3.0 17.0 16.7 16.0 12DEC88 1.0 1.0 1.0 16.0 18.2 19.0 13DEC88 0.0 0.0 0.0 13.8 14.0 14.0 14DEC88 1.2 1.1 1.1 16.8 18.0 19.6 19DEC88 1.0 0.5 0.5 13.1 13.4 14.1 21DEC88 0.8 0.8 0.6 12.6 12.9 12.8 26DEC88 1.2 1.3 1.1 14.2 14.6 14.8 27DEC88 1.1 1.1 1.0 13.9 13.6 13.6 28DEC88 0.0 0.0 0.2 13.4 13.4 13.4 02JAN89 0.0 0.0 0.0 14.7 15.0 15.0 03JAN89 0.0 0.0 1.0 12.9 13.2 13.3 04JAN89 0.0 0.0 0.8 13.0 13.2 13.4 09JAN89 0.0 0.5 1.0 12.9 13.1 13.2 10JAN89 0.0 0.5 1.0 13.0 13.2 13.6 11JAN89 0.6 0.9 1.0 12.4 12.6 12.8 16JAN89 0.2 0.2 0.7 12.8 12.8 12.8 17JAN89 1.0 1.0 1.2 12.6 12.6 12.6 18JAN89 1.5 1.5 1.5 12.4 12.4 12.4 23JAN89 2.0 2.0 2.2 12.0 12.2 12.4 24JAN89 3.0 3.0 3.2 12.2 12.0 11.9 25JAN89 4.0 4.0 4.3 11.4 11.8 12.1 30JAN89 4.3 4.5 5.0 11.4 11.6 11.8 31JAN89 5.5 5.3 5.3 10.8 11.2 12.6 01FEB89 4.0 4.0 4.0 11.8 12.4 12.9

H-2 WATER QUALITY DATA - 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY

WATER TEMPERATURE (C) DISSOLVED OXYGEN (mg/L) ------m------DATE SURFACE MIDDLE BOTTOM SURFACE MIDDLE BOTTOM

07FEB89 0.0 0.0 0.0 13.8 14.6 15.2 13FEB89 0.0 0.0 0.0 12.4 13.4 13.6 14FEB89 0.0 0.0 0.0 12.8 13.6 13.6 15FEB89 0.0 0.0 0.0 13.4 13.4 13.4 20FEB89 0.0 0.0 0.0 12.8 13.0 13.2 21FEB89 0.0 0.0 0.0 13.2 13.4 13.8 22FEB89 0.0 0.0 0.5 13.2 13.4 13.8 27FEB89 0.0 0.0 0.0 13.0 13.2 13.4 28FEB89 0.0 0.0 0.0 13.5 13.6 13.8 01MAR89 0.0 0.0 0.0 13.5 13.7 13.8 06MAR89 0.0 0.0 0.0 13.1 13.4 13.3 07MAR89 0.0 0.0 0.0 13.2 15.0 15.8 08MAR89 0.0 0.0 0.0 13.2 13.4 13.8 13MAR89 0.0 0.0 0.0 14.4 14.2 14.4 14MAR89 0.0 0.0 0.0 14.4 14.6 14.4 15MAR89 4.0 4.0 4.0 11.6 12.4 12.2 20MAR89 2.0 2.0 2.0 11.2 12.2 12.4 21MAR89 2.0 2.0 2.0 12.2 12.4 12.4 22MAR89 4.8 4.4 4.4 12.9 13.4 12.2 27MAR89 6.0 6.0 6.0 13.9 12.9 13.9 28MAR89 6.5 6.5 6.5 13.9 13.7 13.2 10APR89 7.0 7.0 7.0 13.4 13.2 13.4 11APR89 7.0 7.0 7.0 12.9 12.9 12.7 12APR89 7.6 7.6 7.5 11.0 11.1 10.0 19APR89 9.8 9.8 9.8 10.0 10.0 9.9 24APR89 16.0 15.6 15.4 - - - 25APR89 16.2 16.2 16.2 7.7 7.8 7.8 26APR89 17.1 17.2 17.1 7.4 7.5 7.5 01MAY89 NC NC NC 7.9 8.0 7.8 02MAY89 12.8 12.8 12.8 8.5 8.5 8.5 03MAY89 13.6 13.6 13.6 8.6 8.6 8.6 08MAY89 13.2 13.1 13.1 8.5 8.5 8.5 09MAY89 12.7 12.7 12.6 9.3 9.3 9.3 10MAY89 13.3 13.2 13.1 9.4 9.4 9.4 15MAY89 15.6 15.6 15.6 9.6 10.4 11.0 16MAY89 17.8 17.8 17.8 8.7 9.1 9.2 17MAY89 18.9 18.9 18.9 8.9 8.7 8.7 22MAY89 17.0 17.0 17.0 8.7 8.7 8.7 23MAY89 18.4 18.4 18.4 8.5 8.5 8.5 24MAY89 20.3 20.2 20.2 8.3 8.3 8.4 29MAY89 23.8 23.8 23.8 8.8 8.8 8.9 30MAY89 20.8 20.8 21.0 8.8 8.9 8.1 31MAY89 20.7 20.4 20.4 8.7 8.7 8.9 05JUN89 20.2 20.1 20.1 8.5 8.7 8.3 06JUN89 20.2 20.2 20.2 7.9 8.1 8.1 07JUN89 20.8 20.8 20.0 8.4 8.4 8.1 12JUN89 19.4 19.4 19.4 8.4 8.2 8.1 13JUN89 19.6 19.6 19.6 9.3 9.1 8.5

H-3 WATER QUALITY DATA - 1988-89 BRAIDWOOD STATION IMPINGEMENT STUDY

WATER TEMPERATURE (C) DISSOLVED OXYGEN (mg/L)

DATE SURFACE MIDDLE BOTTOM SURFACE MIDDLE BOTTOM

14JUN89 19.0 19.0 19.0 7.7 7.7 7.6 19JUN89 20.4 20.4 20.4 7.4 7.4 6.9 20JUN89 21.6 21.6 21.6 6.9 6.9 6.9 21JUN89 22.8 22.8 22.8 6.8 6.8 6.8 26JUN89 25.4 25.4 25.4 6.1 6.3 6.4 27JUN89 23.6 23.2 23.0 6.2 6.0 5.8 28JUN89 22.2 22.2 22.2 6.8 6.8 6.8 04JUL89 25.8 25.8 25.6 6.8 6.9 6.9 05JUL89 27.0 26.8 26.8 6.8 6.8 6.9 10JUL89 31.2 31.2 31.2 8.5 8.4 8.3 11JUL89 26.4 26.2 26.0 5.9 5.6 5.6 12JUL89 25.8 25.6 25.0 6.4 6.6 6.6 17JUL89 26.2 26.0 26.0 7.5 7.5 7.6 18JUL89 19.4 19.2 19.2 6.7 6.7 6.9 19JUL89 19.2 19.0 19.0 6.6 6.7 6.7 31JUL89 24.2 24.2 24.0 6.2 6.4 6.4 01AUG89 25.6 25.4 25.4 6.6 6.7 6.7 02AUG89 26.6 26.4 26.3 6.7 6.7 6.7 07AUG89 23.2 23.1 23.0 8.2 8.2 8.1 08AUG89 23.8 23.6 23.6 8.3 8.1 8.0 09AUG89 24.8 24.6 24.6 8.5 8.6 8.8 14AUG89 24.2 24.0 24.0 7.4 7.5 7.5 15AUG89 24.6 24.6 24.6 8.8 8.8 8.8 16AUG89 24.2 24.0 23.9 9.2 9.4 9.5 17AUG89 25.4 25.2 25.2 8.2 8.1 8.1 22AUG89 24.4 24.2 24.2 6.9 7.1 7.1 23AUG89 23.2 23.1 23.0 6.2 6.0 6.0 28AUG89 25.3 25.3 25.3 6.3 6.3 6.4 29AUG89 24.8 24.8 24.8 6.9 7.1 6.9 30AUG89 25.2 25.2 25.0 7.5 7.5 7.2 04SEP89 20.0 20.1 20.1 7.2 7.2 7.2 25SEP89 14.3 14.2 14.2 8.8 8.8 8.8 26SEP89 13.4 13.4 13.4 9.1 9.2 9.1 27SEP89 13.6 13.4 13.4 9.0 8.9 8.9 020CT89 14.5 14.3 14.2 7.7 7.9 8.1 030CT89 13.2 13.1 12.8 9.1 9.2 9.2 040CT89 12.9 12.9 12.7 9.5 9.7 9.7

(a) Dash indicates measurement was incorrect, (b) NC indicates value not collected.

H-4