2008 Water Quality Report

2008 Water Quality Summary Report

Orange County Environmental

Prepared by: Protection Division Marcia Anderson Clark, Julie Bortles, Natural Resource Jeff Darr, Management Lynn Denahan, Catherine Johnson , and Ecological Rob Sheridan Assessment Team TABLE OF CONTENTS

BOARD OF COUNTY COMMISSIONERS 3 Introduction

Mayor 6 Rainfall Richard T. Crotty

7 Lake Data Pages Distict 1 Commissioner S. Scott Boyd 236 Bathymetric Data

Distict 2 255 Stream Data Pages Commissioner Fred Brummer

364 Biological Analysis

Distict 3 Commissioner 372 Remote Monitoring Stations Mildred Fernandez

389 Glossary of Terms Distict 4 Commissioner Linda Stewart 392 Appendix A

393 Appendix B Distict 5 Commissioner Bill Segal

Distict 6 Commissioner Tiffany Moore Russell INTRODUCTION

Floridians enjoy a year round climate basin. Things such as fertilizing your lawn in which to take advantage of recreating in with a zero phosphorus fertilizer, car washing lakes and streams. Orange County has over with phosphate free soaps, maintaining septic 500 lakes located in twelve major drainage tanks and drain fields, properly disposing of basins or watersheds, within its boundaries. hazardous waste, preventing oil leaks from These water bodies can change naturally over cars and equipment, cleaning up after pets, time from an open lake to marsh by filling in and limiting erosion all can positively affect a with organic material. Sometimes, human lake or stream several miles away. activities can speed this process along. In The County is required through the order to try to identify these changes, National Pollutant Discharge Elimination monitoring is used as a tool to determine if System (NPDES) program to protect our they are happening too quickly. surface waters. The Environmental Protecton The County has had a surface water Agency (EPA) has delegated this program to monitoring program in place since the late the Florida Department of Environmental 1960’s. The program began as a wastewater Protection (FDEP) since 2000. Through the treatment effluent discharge monitoring permit process the County and other local program and has become a comprehensive municipalities are required to identify large-scale effort across the county with pollutant sources and loadings, implement a quarterly sampling at over 200 sites. Rules monitoring program, and detect and eliminate and regulations have changed in the last non-stormwater discharges. thirty years so that there are few, if any Another program that has been wastewater discharges to surface waters. mandated by the State and Federal Stormwater runoff, or water flowing over the government is the Total Maximum Daily land surface, has become the primary means Load (TMDL) Program, which came from the by which contaminants can enter our lakes Federal Clean Water Act of 1972. This program identifies waters that do not meet and streams. This stormwater can pick up specific water quality criteria outlined in dirt, nutrients, bacteria, leaves and litter and Florida Administrative Code (F.A.C.) 62-302. carry these pollutants to a lake or stream. The FDEP analyzes the monitoring data that Since the 1980’s rules have been put into is generated by the County and based on this place that limit the amount of direct information, some waterbodies are listed as discharge into surface waters, however, the impaired for certain constituents. As these County has many areas built before these water bodies are identified, the County and regulations that that have no stormwater other stakeholders must establish the pollution treatment. As we try to determine the source or sources, and eventually create a sources of pollution in each particular basin, Basin Management Action Plan (BMAP) to there are many things that can be done by all eliminate or decrease these sources to to help water quality throughout the county. improve water quality. This program has Everyday practices at home can help become the driving force behind the water preserve or improve water quality in the quality monitoring program. INTRODUCTION Page 4

There are many ways to gauge the time data transmissions at a small number health of a water body, one way is to of locations. This is a partnership with the measure the Trophic State Index (TSI). United States Geological Survey (USGS) This index, originally developed by and the South Florida Water Management Brezonik in 1984, takes the level of District (SFWMD) through which the nitrogen, phosphorus and chlorophyll a County has located water quality probes into account and provides the level of with these agency’s communication and productivity. This level of productivity stage equipment. This allows staff and the equates to its trophic state. There are public to view what is happening in the three levels of trophism: oligotrophic, rivers on an hourly basis without having to mesotrophic and eutrophic. The more be physically at the site. Please see the productive the lake, the more eutrophic it Remote Monitoring section for this becomes. The trophic state succession is a information and the location of the sites. naturally occurring process, but can be accelerated over time by anthropogenic or Data Compilation human sources mentioned above. The data that has been compiled for Eutrophic lakes typically have a larger this report includes historic and current concentration of nitrogen or phosphorus data represented in trend graphs for each (or both) and large amounts of chlorophyll sample site covering the twelve major a due to the abundance of algae. These drainage basins within Orange County. A lakes also have a larger fish, plant and linear regression was performed on each invertebrate population, whereas the graph to determine if the trend is oligotrophic lakes are clearer, but significant for a ten year period (red dotted typically have low amounts of nutrients line) and another for the historical period and wildlife. of record (blue solid line). For lakes, the Stream sites do not have an index TSI for each year has been calculated using calculated on them, but do have the same the formula located in the Appendix A of constituents as the lakes tested. this report. The stream pages have trend Other means of determining a water graphs of bacteria and either nutrients or body’s health may be through the dissolved oxygen, depending on the biological processes and types of impairment designation on the stream organisms present. The County has been segment. Some sites will have biological collecting data on invertebrate diversity data in addition to the chemical and for many years and has baseline diversity physical data. This data summarizes plant on several sites. The biology section of or invertebrate surveys performed on the this report will go into detail on the water body and the overall outcome. There methods used to analyze the plant and is a separate section of the report for more invertebrate populations in selected lakes comprehensive biological analyses. and streams. The graphs presented in the following The County has also begun remote data pages are representative of data monitoring of water quality through real collected through a number of years to the present. This data should be used for INTRODUCTION Page 5

informational purposes only. Some of the sites have gaps between many years due to site http://waterdata.usgs.gov/fl/nwis/rt. access issues or budgetary reasons. Not all All calibration and multiprobe collection parameters analyzed are included in this report; procedures are sampled using USGS and please refer to Appendix B for the complete list FDEP collection SOP’s. of parameters. Summary Methods Orange County’s impaired water The County follows the Florida Department bodies increased to approximately 50. of Environmental Protection (FDEP) Standard Most of these impairments are most likely Operating Procedures (SOP) for all field due to nutrient runoff from surrounding sampling. The analytical laboratories are land use. Nutrients remain the largest issue certified through the National Environmental facing many of our lakes. Many projects Laboratory Accreditation Program (NELAP) are scheduled or ongoing to try to mitigate and are audited through the Florida Department the amount of nutrients getting into the of Health (FDOH). Once the data is collected, lakes from stormwater conveyances or it is sent to the Orange County Water Atlas overland flow. There are also education (www.orange.wateratlas.org), and then to the programs in place to let homeowners know FDEP to upload to the Florida STORET (http:// about practices that they can change to help storet.dep.state.fl.us/WrmSpa) database. From the water quality from their backyard or a there the data is accessible by the state’s TMDL lake in their drainage basin. assessment team to determine any impairment. It is then forwarded to the Enivronmental Protection Agency’s (EPA) STORET database, where they will also determine if a seperate Federal TMDL will be created. The physical conditions in the field are collected and analyzed by multiprobe meters. Theses parameters include temperature, dissolved oxygen, pH, specific conductivity, and sometimes turbidity. All readings reflect surface conditions at the time of sample collection. Bathymetric data was collected using Odom Hydrographic System’s Hydrotrac single beam unit. This unit collects many data points per second and triangulates them over the lake area. The data are then averaged together and extrapolated into one image of the lake bottom. Real time data are transmitted to a site at the USGS for a quality control check and then are transmitted to a public website at RAINFALL DATA

2008 Monthly Rainfall

Monthly Total Historical Average

The above graph shows the monthly rainfall as recorded at the Orlando International Airport. Data is measured in inches. LAKE DATA PAGES LAKE ANDERSON

Basin: Boggy Creek

LAT: 28° 29' 56" LONG: 81° 20' 12" SECTION: 8 TOWNSHIP: 23S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 13 Lake Volume (ft3): 6,512,220 Average Depth (ft): 11.5 Shoreline Length (ft): 3,083 100 Year Flood (NGVD): 83.50 O.C.E Historic Low Water Elevation (NGVD): 56.4 Historic High Water Elevation (NGVD): 88.7 Normal High Water Elevation (NHWE): 79.5 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: MSBU ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: No Data Advisory: No Treatment: No Overall Health: No Data Grass Carp: No Target Species: Diversity Index: No Data Acreage Treated: No

2008 TSI Score: 58 Historic TSI Graph:

LAKE ANDERSON Page 9

Legend Lake Anderson Sampling Locations

Orange County Outfalls BC1

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE APOPKA

Basin: Apopka

LAT: 28° 37' 26" LONG: 81° 37' 33" SECTION: 12 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 30,862 Lake Volume (ft3): 9,410,441,040 Average Depth (ft): 7.0 Shoreline Length (ft): 152,870 100 Year Flood (NGVD): 69.2 FEMA Historic Low Water Elevation (NGVD): 64.3 Historic High Water Elevation (NGVD): 74.5 Normal High Water Elevation (NHWE): 68.0 TMDL Impairment: Nutrients (TSI)

TMDL Group: 1 Graph Legend BMAP: Yes, Adopted 2007 ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: No Data Advisory: Yes Treatment: No Overall Health: No Data Grass Carp: No Target Species: Diversity Index: No Data Acreage Treated: No

2008 TSI Score: 82 Historic TSI Graph:

LAKE APOPKA Page 11

Legend Lake Apopka LA5, LA7, LA9, LA10, LA11, LA12, LA17, Sampling Locations

Orange County Outfalls LA18, LA19

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE AVALON

Basin: Apopka

LAT: 28° 30' 36" LONG: 81° 38' 33" SECTION: 6 TOWNSHIP: 23S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 163 Lake Volume (ft3): 88,753,500 Average Depth (ft): 12.5 Shoreline Length (ft): 24,640 100 Year Flood (NGVD): 98.60 FEMA Historic Low Water Elevation (NGVD): 80.4 Historic High Water Elevation (NGVD): 97.2 Normal High Water Elevation (NHWE): 90.9 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: No Data Advisory: No Treatment: No Overall Health: No Data Grass Carp: No Target Species: Diversity Index: No Data Acreage Treated: No

2008 TSI Score: 41 Historic TSI Graph:

LAKE AVALON Page 13

Legend Lake Avalon Sampling Locations

Orange County Outfalls A3

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BALDWIN

Basin: Little Econ

LAT: 28° 34' 20" LONG: 81° 19' 20" SECTION: 16 TOWNSHIP: 22S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 202 Lake Volume (ft3): 131,986,800 Average Depth (ft): 15.0 Shoreline Length (ft): 10,541 100 Year Flood (NGVD): 95 FEMA Historic Low Water Elevation (NGVD): 90.3 Historic High Water Elevation (NGVD): 93.3 Normal High Water Elevation (NHWE): 91.1 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: No Data Advisory: Yes Treatment: No Overall Health: No Data Grass Carp: Yes Target Species: Diversity Index: 4.2** Acreage Treated: No

2008 TSI Score: 32 Historic TSI Graph:

** Data collected in 1999 LAKE BALDWIN (CORRINE) Page 15

Legend Lake Baldwin (Corrine) Sampling Locations

Orange County Outfalls LE7

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BARTON

Basin: Little Econ

LAT: 28° 33' 04" LONG: 81° 18' 57" SECTION: 23 TOWNSHIP: 22S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 145 Lake Volume (ft3): 122,534,280 Average Depth (ft): 19.4 Shoreline Length (ft): 9,286 100 Year Flood (NGVD): 96.30 FEMA Historic Low Water Elevation (NGVD): 91.3 Historic High Water Elevation (NGVD): 96.1 Normal High Water Elevation (NHWE): 94.2 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: 52 Advisory: No Treatment: No Overall Health: Good Grass Carp: Yes Target Species: Diversity Index: 3.5 Acreage Treated: No

2008 TSI Score: 45 Historic TSI Graph:

* Data not available for all 4 quarters LAKE BARTON Page 17

Legend Lake Barton Sampling Locations

Orange County Outfalls LE2

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BASS LAKE

Basin: Boggy Creek

LAT: 28° 30' 42" LONG: 81° 20' 32" SECTION: 5 TOWNSHIP: 23S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 24 Lake Volume (ft3): 13,068,000 Average Depth (ft): 12.5 Shoreline Length (ft): 4,821 100 Year Flood (NGVD): 100.24 OCE Historic Low Water Elevation (NGVD): 92.8 Historic High Water Elevation (NGVD): 97.2 Normal High Water Elevation (NHWE): 94.6 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: No Data Advisory: No Treatment: No Overall Health: No Data Grass Carp: Yes Target Species: Diversity Index: No Data Acreage Treated: No

2008 TSI Score: 54 Historic TSI Graph:

BASS LAKE Page 19

Legend Bass Lake Sampling Locations

Orange County Outfalls BC3

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BAY LAKE

Basin: Little Wekiva

LAT: 28° 35' 28" LONG: 81° 25' 18" SECTION: 9 TOWNSHIP: 22S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 37 Lake Volume (ft3): 12,410,244 Average Depth (ft): 7.7 Shoreline Length (ft): 4,694 100 Year Flood (NGVD): 92.60 FEMA Historic Low Water Elevation (NGVD): 87.7 Historic High Water Elevation (NGVD): 92.2 Normal High Water Elevation (NHWE): 91.1 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: No Data Advisory: No Treatment: No Overall Health: No Data Grass Carp: Yes Target Species: Diversity Index: No Data Acreage Treated: No

2008 TSI Score: 60 Historic TSI Graph:

BAY LAKE Page 21

Legend Bay Lake Sampling Locations

Orange County Outfalls LW42

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BEARHEAD

Basin: Boggy Creek

LAT: 28° 27' 08" LONG: 81° 21' 41" SECTION: 25 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 16 Lake Volume (ft3): 6,830,208 Average Depth (ft): 9.8 Shoreline Length (ft): 3,430 100 Year Flood (NGVD): 93.4 OCE Historic Low Water Elevation (NGVD): 88.8 Historic High Water Elevation (NGVD): 99.3 Normal High Water Elevation (NHWE): 90.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 51 Historic TSI Graph:

LAKE BEARHEAD Page 23

Legend Lake Bearhead Sampling Locations

Orange County Outfalls BC4

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BELL

Basin: Howell Branch

LAT: 28° 36' 37" LONG: 81° 22' 43" SECTION: 2 TOWNSHIP: 29S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 37 Lake Volume (ft3): 15,311,340 Average Depth (ft): 9.5 Shoreline Length (ft): 5,085 100 Year Flood (NGVD): 92.4 FEMA Historic Low Water Elevation (NGVD): 86.9 Historic High Water Elevation (NGVD): 91.4 Normal High Water Elevation (NHWE): 89.4 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 36 Historic TSI Graph:

LAKE BELL Page 27

Legend Lake Bell Sampling Locations

Orange County Outfalls HB2

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BESSIE

Basin: Cypress Creek

LAT: 28° 29' 19" LONG: 81° 31' 35" SECTION: 17 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 164 Lake Volume (ft3): 119,302,128 Average Depth (ft): 16.7 Shoreline Length (ft): 13,400 100 Year Flood (NGVD): 102.6 FEMA Historic Low Water Elevation (NGVD): 93.3 Historic High Water Elevation (NGVD): 102.1 Normal High Water Elevation (NHWE): 97.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: No Data Advisory: Yes Treatment: No Overall Health: No Data Grass Carp: No Target Species: Diversity Index: No Data Acreage Treated: No

2008 TSI Score: 35 Historic TSI Graph:

LAKE BESSIE Page 29

Legend Lake Bessie Sampling Locations

Orange County Outfalls CC1

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG SAND LAKE

Basin: Shingle Creek

LAT: 28° 25' 37" LONG: 81° 29' 15" SECTION: 2 TOWNSHIP: 24S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 1,090 Lake Volume (ft3): 1,092,049,200 Average Depth (ft): 23.0 Shoreline Length (ft): 55,735 100 Year Flood (NGVD): 104.4 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 100.4 Normal High Water Elevation (NHWE): 90.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 53** Advisory: Yes Treatment: Yes Overall Health: Good Grass Carp: No Target Species: Diversity Index: 3.4** Acreage Treated: No

2008 TSI Score: 29 Historic TSI Graph:

** Data collected in 2007 BIG SAND LAKE Page 31

Legend Big Sand Lake Sampling Locations

Orange County Outfalls SC27, SC30

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BLACK LAKE

Basin: Apopka

LAT: 28° 31' 38" LONG: 81° 36' 05" SECTION: 34 TOWNSHIP: 22S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 225 Lake Volume (ft3): 115,651,800 Average Depth (ft): 11.8 Shoreline Length (ft): 15,104 100 Year Flood (NGVD): 100.6 FEMA Historic Low Water Elevation (NGVD): 80.8 Historic High Water Elevation (NGVD): 98.3 Normal High Water Elevation (NHWE): 95.8 TMDL Impairment: None

TMDL Group: 1 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: No Data Advisory: No Treatment: Yes Overall Health: No Data Grass Carp: No Target Species: Diversity Index: No Data Acreage Treated: No

2008 TSI Score: 52 Historic TSI Graph:

BLACK LAKE Page 33

Legend Black Lake Sampling Locations

Orange County Outfalls A5

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BLANCHE

Basin: Cypress Creek

LAT: 28° 28' 50" LONG: 81° 30' 57" SECTION: 16 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 122 Lake Volume (ft3): 142,955,208 Average Depth (ft): 26.9 Shoreline Length (ft): 12,213 100 Year Flood (NGVD): 101.6 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 100.8 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes, Keene Park

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: No Data Advisory: No Treatment: Yes Overall Health: No Data Grass Carp: No Target Species: P Diversity Index: No Data Acreage Treated: 8.25

2008 TSI Score: 28 Historic TSI Graph:

LAKE BLANCHE Page 35

Legend Lake Blanche Sampling Locations

Orange County Outfalls CC3

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BRITT

Basin: Reedy Creek

LAT: 28° 22' 06" LONG: 81° 37' 14" SECTION: 28 TOWNSHIP: 24S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 137 Lake Volume (ft3): 27,451,512 Average Depth (ft): 4.6 Shoreline Length (ft): 15,652 100 Year Flood (NGVD): NA Historic Low Water Elevation (NGVD): 101.6 Historic High Water Elevation (NGVD): 104.8 Normal High Water Elevation (NHWE): 105.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: No Data Historic TSI Graph:

LAKE BRITT Page 37

Legend Lake Britt Sampling Locations

Orange County Outfalls RC40

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BUMBY

Basin: Boggy Creek

LAT: 28° 29' 10" LONG: 81° 23' 38" SECTION: 15 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 11 Lake Volume (ft3): 3,785,364 Average Depth (ft): 7.9 Shoreline Length (ft): 3,792 100 Year Flood (NGVD): 95 FEMA Historic Low Water Elevation (NGVD): 90.4 Historic High Water Elevation (NGVD): 93.4 Normal High Water Elevation (NHWE): 92.4 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 55 Historic TSI Graph:

LAKE BUMBY Page 39

Legend Lake Bumby Sampling Locations

Orange County Outfalls BC5

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BURDEN

Basin: Cypress Creek

LAT: 28° 27' 20" LONG: 81° 33' 12" SECTION: 30 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 125 Lake Volume (ft3): 100,188,000 Average Depth (ft): 18.4 Shoreline Length (ft): 12,670 100 Year Flood (NGVD): 110 OCE Historic Low Water Elevation (NGVD): 101.8 Historic High Water Elevation (NGVD): 107.5 Normal High Water Elevation (NHWE): 106.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

2008 TSI Score: 16 Historic TSI Graph:

LAKE BURDEN Page 41

Legend Lake Burden Sampling Locations

Orange County Outfalls CC30

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BURKETT

Basin: Howell Branch

LAT: 28° 36' 36" LONG: 81° 16' 03" SECTION: 1 TOWNSHIP: 22S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 75 Lake Volume (ft3): 56,845,800 Average Depth (ft): 17.4 Shoreline Length (ft): 6,575 100 Year Flood (NGVD): 56.0 FEMA Historic Low Water Elevation (NGVD): 49.1 Historic High Water Elevation (NGVD): 55.0 Normal High Water Elevation (NHWE): 53.0 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 52 Historic TSI Graph:

LAKE BURKETT Page 43

Legend Lake Burkett Sampling Locations

Orange County Outfalls HB4

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE BUTLER

Basin: Cypress Creek

LAT: 28° 28' 32" LONG: 81° 32' 50" SECTION: 19 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 1,618 Lake Volume (ft3): 993,769,128 Average Depth (ft): 14.1 Shoreline Length (ft): 66,127 100 Year Flood (NGVD): 102.3 FEMA Historic Low Water Elevation (NGVD): 59.7 Historic High Water Elevation (NGVD): 102.4 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: Historic TSI (Nutrients)

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes, Keene Park

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 81** Advisory: Yes Treatment: Yes Overall Health: Very Good Grass Carp: No Target Species: A, P Diversity Index: 3.9** Acreage Treated: 12.11

2008 TSI Score: 30 Historic TSI Graph:

** Data collected in 2007 LAKE BUTLER Page 45

Legend Lake Butler Sampling Locations

Orange County Outfalls CC4

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE CANE

Basin: Shingle Creek

LAT: 28° 29' 06" LONG: 81° 28' 21" SECTION: 13 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 79 Lake Volume (ft3): 67,792,428 Average Depth (ft): 19.7 Shoreline Length (ft): 7,964 100 Year Flood (NGVD): 100.2 FEMA Historic Low Water Elevation (NGVD): 48.6 Historic High Water Elevation (NGVD): 103.2 Normal High Water Elevation (NHWE): 98.8 TMDL Impairment: Nutrients (TSI)

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: 60 Advisory: No Treatment: No Overall Health: No Data Grass Carp: Yes Target Species: Diversity Index: 4 Acreage Treated: No

2008 TSI Score: 41 Historic TSI Graph:

LAKE CANE Page 47

Legend Lake Cane Sampling Locations

Orange County Outfalls SC4

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE CARLTON

Basin: Apopka

LAT: 28° 45' 34" LONG: 81° 39' 26" SECTION: 7 TOWNSHIP: 20S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 384 Lake Volume (ft3): 219,124,224 Average Depth (ft): 13.1 Shoreline Length (ft): 13,451 100 Year Flood (NGVD): 65.9 FEMA Historic Low Water Elevation (NGVD): 60.9 Historic High Water Elevation (NGVD): 63.8 Normal High Water Elevation (NHWE): 64.0 TMDL Impairment: Nutrients (TSI)

TMDL Group: 1 Graph Legend BMAP: Yes, Adopted 2007 ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes, Trimble Park

2008 TSI Score: 76 Historic TSI Graph:

LAKE CARLTON Page 49

Legend Lake Carlton Sampling Locations

Orange County Outfalls A49

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE CATHERINE

Basin: Shingle Creek

LAT: 28° 30' 10" LONG: 81° 24' 42" SECTION: 9 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 81 Lake Volume (ft3): 55,395,252 Average Depth (ft): 15.7 Shoreline Length (ft): 10,906 100 Year Flood (NGVD): 93.8 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 93.5 Normal High Water Elevation (NHWE): 90.4 TMDL Impairment: DO And Nutrients (TSI)

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 49 Historic TSI Graph:

LAKE CATHERINE Page 51

Legend Lake Catherine Sampling Locations

Orange County Outfalls SC6, SC28, SC29

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE CHASE

Basin: Cypress Creek

LAT: 28° 28' 29" LONG: 81° 31' 25" SECTION: 21 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 142 Lake Volume (ft3): 128,040,264 Average Depth (ft): 20.7 Shoreline Length (ft): 128,910 100 Year Flood (NGVD): 102.2 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): No Data Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes, Keene Park

2008 TSI Score: 33 Historic TSI Graph:

LAKE CHASE Page 53

Legend Lake Chase Sampling Locations

Orange County Outfalls CC6

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ CLEAR LAKE

Basin: Shingle Creek

LAT: 28° 31' 16" LONG: 81° 24' 33" SECTION: 4 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 352 Lake Volume (ft3): 193,197,312 Average Depth (ft): 12.6 Shoreline Length (ft): 16,326 100 Year Flood (NGVD): 97.2 FEMA Historic Low Water Elevation (NGVD): 92.7 Historic High Water Elevation (NGVD): 97.1 Normal High Water Elevation (NHWE): 94.6 TMDL Impairment: Nutrients (TSI)

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes, George Barker Park

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: No Data Advisory: No Treatment: No Overall Health: No Data Grass Carp: Yes Target Species: Diversity Index: No Data Acreage Treated: No

2008 TSI Score: 53 Historic TSI Graph:

* Data not available for all 4 quarters CLEAR LAKE Page 55

Legend Clear Lake Sampling Locations

Orange County Outfalls SC7

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE CONDEL

Basin: Boggy Creek

LAT: 28° 30' 27" LONG: 81° 20' 05" SECTION: 8 TOWNSHIP: 23S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 3 Lake Volume (ft3): 509,652 Average Depth (ft): 3.9 Shoreline Length (ft): 1,386 100 Year Flood (NGVD): 98 OCE Historic Low Water Elevation (NGVD): 88.3 Historic High Water Elevation (NGVD): 95.1 Normal High Water Elevation (NHWE): 94.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 74 Historic TSI Graph:

LAKE CONDEL Page 57

Legend Lake Condel Sampling Locations

Orange County Outfalls BC31

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE CONWAY

Basin: Boggy Creek

LAT: 28° 29' 13" LONG: 81° 22' 06" SECTION: 18 TOWNSHIP: 23S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): No Data Lake Volume (ft3): 636,790,572 Average Depth (ft): 23.3 Shoreline Length (ft): No Data 100 Year Flood (NGVD): 89 FEMA Historic Low Water Elevation (NGVD): 74.3 Historic High Water Elevation (NGVD): 89.0 Normal High Water Elevation (NHWE): 86.9 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes, Randolph Boat Ramp

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 67 Advisory: Yes Treatment: Yes Overall Health: Very Good Grass Carp: Yes Target Species: Diversity Index: 4.0 Acreage Treated: No

2008 TSI Score: 30 Historic TSI Graph:

LAKE CONWAY Page 59

Legend Lake Conway Sampling Locations

Orange County Outfalls BC8, BC9

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ CORNER LAKE

Basin: Big Econ

LAT: 28° 34' 56" LONG: 81° 07' 45" SECTION: 17 TOWNSHIP: 22S RANGE: 32E

Characteristics

Origin: Natural Lake Surface Area (ac): 113 Lake Volume (ft3): 61,528,500 Average Depth (ft): 12.5 Shoreline Length (ft): 10,230 100 Year Flood (NGVD): 63.3 Historic Low Water Elevation (NGVD): 59.4 Historic High Water Elevation (NGVD): 63.6 Normal High Water Elevation (NHWE): 62.0 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 33 Historic TSI Graph:

CORNER LAKE Page 61

Legend Corner Lake Sampling Locations

Orange County Outfalls BE3

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE CRESCENT

Basin: Cypress Creek

LAT: 28° 30' 31" LONG: 81° 33' 36" SECTION: 1 TOWNSHIP: 23S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 187 Lake Volume (ft3): 152,324,964 Average Depth (ft): 18.7 Shoreline Length (ft): 15,530 100 Year Flood (NGVD): 105.1 FEMA Historic Low Water Elevation (NGVD): 100.0 Historic High Water Elevation (NGVD): 104.0 Normal High Water Elevation (NHWE): 102.8 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

2008 TSI Score: 39 Historic TSI Graph:

LAKE CRESCENT Page 63

Legend Lake Crescent Sampling Locations

Orange County Outfalls CC7

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ CROOKED LAKE

Basin: Big Wekiva

LAT: 28° 35' 46" LONG: 81° 28' 52" SECTION: 2 TOWNSHIP: 22S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 100 Lake Volume (ft3): 28,686,351 Average Depth (ft): 6.6 Shoreline Length (ft): 17,826 100 Year Flood (NGVD): 79.9 FEMA Historic Low Water Elevation (NGVD): 56.0 Historic High Water Elevation (NGVD): 81.9 Normal High Water Elevation (NHWE): 71.7 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 78 Historic TSI Graph:

* Data not available for all 4 quarters CROOKED LAKE Page 65

Legend Crooked Lake Sampling Locations

Orange County Outfalls BW19

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE CYPRESS

Basin: Cypress Creek

LAT: 28° 28' 49" LONG: 81° 33' 59" SECTION: 13 TOWNSHIP: 23S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 62 Lake Volume (ft3): 37,269,936 Average Depth (ft): 13.8 Shoreline Length (ft): 7,610 100 Year Flood (NGVD): 102.3 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 100.8 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

2008 TSI Score: 45 Historic TSI Graph:

LAKE CYPRESS (ESTES) Page 67

Legend Lake Cypress (Estes) Sampling Locations

Orange County Outfalls CC8

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ DEEP LAKE

Basin: Howell Branch

LAT: 28° 36' 46" LONG: 81° 15' 11" SECTION: 31 TOWNSHIP: 21S RANGE: 31E

Characteristics

Origin: Natural Lake Surface Area (ac): 43 Lake Volume (ft3): 43,080,840 Average Depth (ft): 23.0 Shoreline Length (ft): 2,586 100 Year Flood (NGVD): 57.7 SJRWMD Historic Low Water Elevation (NGVD): 49.1 Historic High Water Elevation (NGVD): 55.7 Normal High Water Elevation (NHWE): 56.8 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 36 Historic TSI Graph:

* Data not available for all 4 quarters DEEP LAKE Page 69

Legend Deep Lake Sampling Locations

Orange County Outfalls HB47

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE DOWN

Basin: Cypress Creek

LAT: 28° 30' 17" LONG: 81° 31' 35" SECTION: 8 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 911 Lake Volume (ft3): 781,758,252 Average Depth (ft): 19.7 Shoreline Length (ft): 48,061 100 Year Flood (NGVD): 102.3 FEMA Historic Low Water Elevation (NGVD): 90.6 Historic High Water Elevation (NGVD): 101.6 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes, Down Boat Ramp

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 85** Advisory: Yes Treatment: Yes Overall Health: Very Good Grass Carp: No Target Species: Diversity Index: 3.8** Acreage Treated: No

2008 TSI Score: 16 Historic TSI Graph:

** Data collected in 2006 LAKE DOWN Page 71

Legend Lake Down Sampling Locations

Orange County Outfalls CC9, CC9E

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE DOWNEY

Basin: Little Econ

LAT: 28° 34' 03" LONG: 81° 14' 28" SECTION: 20 TOWNSHIP: 22S RANGE: 31E

Characteristics

Origin: Natural Lake Surface Area (ac): 18 Lake Volume (ft3): 12,545,280 Average Depth (ft): 16.0 Shoreline Length (ft): 3,279 100 Year Flood (NGVD): 73.2 FEMA Historic Low Water Elevation (NGVD): 68.8 Historic High Water Elevation (NGVD): 72.3 Normal High Water Elevation (NHWE): 70.5 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes, Downey Park

2008 TSI Score: 35 Historic TSI Graph:

LAKE DOWNEY Page 73

Legend Lake Downey Sampling Locations

Orange County Outfalls LE10

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE DRAWDY

Basin: Big Econ

LAT: 28° 35' 30" LONG: 81° 07' 29" SECTION: 9 TOWNSHIP: 22S RANGE: 32E

Characteristics

Origin: Natural Lake Surface Area (ac): 52 Lake Volume (ft3): 34,882,848 Average Depth (ft): 15.4 Shoreline Length (ft): 7,013 100 Year Flood (NGVD): 59.1 FEMA Historic Low Water Elevation (NGVD): 54.0 Historic High Water Elevation (NGVD): 58.9 Normal High Water Elevation (NHWE): 57.5 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 47 Historic TSI Graph:

LAKE DRAWDY Page 75

Legend Lake Drawdy Sampling Locations

Orange County Outfalls BE4

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE ELLENOR

Basin: Shingle Creek

LAT: 28° 27' 59" LONG: 81° 24' 21" SECTION: 22 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 113 Lake Volume (ft3): 38,393,784 Average Depth (ft): 7.8 Shoreline Length (ft): 8,476 100 Year Flood (NGVD): 98.00 FEMA Historic Low Water Elevation (NGVD): 93.4 Historic High Water Elevation (NGVD): 96.0 Normal High Water Elevation (NHWE): 95.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 45 Historic TSI Graph:

LAKE ELLENOR Page 77

Legend Lake Ellenor Sampling Locations

Orange County Outfalls SC50

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE FAIRVIEW

Basin: Little Wekiva

LAT: 28° 35' 38" LONG: 81° 24' 24" SECTION: 10 TOWNSHIP: 22S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 417 Lake Volume (ft3): 317,879,100 Average Depth (ft): 17.5 Shoreline Length (ft): 28,911 100 Year Flood (NGVD): 90.8 FEMA Historic Low Water Elevation (NGVD): 85.8 Historic High Water Elevation (NGVD): 90.2 Normal High Water Elevation (NHWE): 88.5 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes (South Lobe) ------10 Year Recent Trend Public Access: Yes, Lake Fairview Park

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 51** Advisory: No Treatment: Yes Overall Health: Very Good Grass Carp: Yes Target Species: Diversity Index: 3.0** Acreage Treated: No

2008 TSI Score: 47 Historic TSI Graph:

** Data collected in 2007 LAKE FAIRVIEW Page 79

Legend Lake Fairview Sampling Locations

Orange County Outfalls LW28, LW29

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE FREDRICA

Basin: Little Econ

LAT: 28° 30' 30" LONG: 81° 18' 26" SECTION: 10 TOWNSHIP: 23S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 67 Lake Volume (ft3): 34,730,388 Average Depth (ft): 11.9 Shoreline Length (ft): 6,195 100 Year Flood (NGVD): 99.7 Historic Low Water Elevation (NGVD): 94.1 Historic High Water Elevation (NGVD): 99.3 Normal High Water Elevation (NHWE): 98.0 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 35 Historic TSI Graph:

LAKE FREDRICA Page 81

Legend Lake Fredrica Sampling Locations

Orange County Outfalls LE13

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE GANDY

Basin: Little Wekiva

LAT: 28° 37' 38" LONG: 81° 25' 57" SECTION: 29 TOWNSHIP: 21S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 45 Lake Volume (ft3): 18,621,900 Average Depth (ft): 9.5 Shoreline Length (ft): 9,550 100 Year Flood (NGVD): 76 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 77.5 Normal High Water Elevation (NHWE): 73.1 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 59 Historic TSI Graph:

LAKE GANDY Page 83

Legend Lake Gandy Sampling Locations

Orange County Outfalls LW7

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE GATLIN

Basin: Boggy Creek

LAT: 28° 29' 28" LONG: 81° 22' 06" SECTION: 13 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 64 Lake Volume (ft3): 61,332,480 Average Depth (ft): 22.0 Shoreline Length (ft): 7,297 100 Year Flood (NGVD): 89 FEMA Historic Low Water Elevation (NGVD): 81.3 Historic High Water Elevation (NGVD): 87.5 Normal High Water Elevation (NHWE): 86.9 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes, Ferncreek And Randolph Boat

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: No Data Advisory: No Treatment: No Overall Health: No Data Grass Carp: Yes Target Species: W Diversity Index: No Data Acreage Treated: 0.05

2008 TSI Score: 36 Historic TSI Graph:

LAKE GATLIN Page 85

Legend Lake Gatlin Sampling Locations

Orange County Outfalls BC11

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE GEM MARY

Basin: Boggy Creek

LAT: 28° 29' 46" LONG: 81° 21' 54" SECTION: 12 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 13 Lake Volume (ft3): 15,232,932 Average Depth (ft): 26.9 Shoreline Length (ft): 2,895 100 Year Flood (NGVD): 93.2 FEMA Historic Low Water Elevation (NGVD): 86.3 Historic High Water Elevation (NGVD): 96.5 Normal High Water Elevation (NHWE): 89.6 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 60 Historic TSI Graph:

LAKE GEM MARY Page 87

Legend Lake Gem Mary Sampling Locations

Orange County Outfalls BC12

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE GEORGE

Basin: Boggy Creek

LAT: 28° 30' 02" LONG: 81° 19' 11" SECTION: 9 TOWNSHIP: 23S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 69 Lake Volume (ft3): 39,975,012 Average Depth (ft): 13.3 Shoreline Length (ft): 8,089 100 Year Flood (NGVD): 99.2 OCE Historic Low Water Elevation (NGVD): 86.6 Historic High Water Elevation (NGVD): 100.4 Normal High Water Elevation (NHWE): 95.5 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes, Barber Park

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: 40** Advisory: No Treatment: No Overall Health: Good Grass Carp: No Target Species: Diversity Index: 2.3** Acreage Treated: No

2008 TSI Score: 33 Historic TSI Graph:

** Data collected in 2004 LAKE GEORGE (BARBER) Page 89

Legend Lake George (Barber) Sampling Locations

Orange County Outfalls BC2

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE GEORGIA

Basin: Howell Branch

LAT: 28° 36' 22" LONG: 81° 14' 48" SECTION: 6 TOWNSHIP: 22S RANGE: 31E

Characteristics

Origin: Natural Lake Surface Area (ac): 83 Lake Volume (ft3): 40,131,828 Average Depth (ft): 11.1 Shoreline Length (ft): 9,889 100 Year Flood (NGVD): 61.9 FEMA Historic Low Water Elevation (NGVD): 48.6 Historic High Water Elevation (NGVD): 61.4 Normal High Water Elevation (NHWE): 59.5 TMDL Impairment: Historic TSI (Nutrients)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 26 Historic TSI Graph:

LAKE GEORGIA Page 91

Legend Lake Georgia Sampling Locations

Orange County Outfalls HB14

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE GIFFORD

Basin: Reedy Creek

LAT: 28° 21' 46" LONG: 81° 38' 33" SECTION: 30 TOWNSHIP: 24S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 43 Lake Volume (ft3): 31,280,436 Average Depth (ft): 16.7 Shoreline Length (ft): 5,388 100 Year Flood (NGVD): 113.8 OCE Historic Low Water Elevation (NGVD): 107.4 Historic High Water Elevation (NGVD): 110.5 Normal High Water Elevation (NHWE): 110.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 36 Historic TSI Graph:

LAKE GIFFORD Page 93

Legend Lake Gifford Sampling Locations

Orange County Outfalls RC8

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE HANCOCK

Basin: Reedy Creek

LAT: 28° 21' 55" LONG: 81° 39' 24" SECTION: 30 TOWNSHIP: 24S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 456 Lake Volume (ft3): 431,034,912 Average Depth (ft): 21.7 Shoreline Length (ft): 59,026 100 Year Flood (NGVD): 100.2 OCE Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 99.4 Normal High Water Elevation (NHWE): 97.3 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 25 Historic TSI Graph:

LAKE HANCOCK Page 95

Legend Lake Hancock Sampling Locations

Orange County Outfalls RC10

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE HART

Basin: Hart

LAT: 28° 22' 46" LONG: 81° 12' 40" SECTION: 21 TOWNSHIP: 24S RANGE: 31E

Characteristics

Origin: Natural Lake Surface Area (ac): 1,880 Lake Volume (ft3): 777,981,600 Average Depth (ft): 9.5 Shoreline Length (ft): 48,281 100 Year Flood (NGVD): 64 OCE Historic Low Water Elevation (NGVD): 54.3 Historic High Water Elevation (NGVD): 62.4 Normal High Water Elevation (NHWE): 61.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes - Moss Park

2008 TSI Score: 41 Historic TSI Graph:

** Data collected in 1999 LAKE HART Page 97

Legend Lake Hart Sampling Locations

Orange County Outfalls H2

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE HARVEST

Basin: Little Wekiva

LAT: 28° 37' 24" LONG: 81° 23' 45" SECTION: 34 TOWNSHIP: 21S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 11 Lake Volume (ft3): 7,858,224 Average Depth (ft): 16.4 Shoreline Length (ft): 2,734 100 Year Flood (NGVD): 92 FEMA Historic Low Water Elevation (NGVD): 87.5 Historic High Water Elevation (NGVD): 92.3 Normal High Water Elevation (NHWE): No Data TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 34 Historic TSI Graph:

LAKE HARVEST Page 99

Legend Lake Harvest Sampling Locations

Orange County Outfalls LW41

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE HIAWASSEE

Basin: Big Wekiva

LAT: 28° 31' 40" LONG: 81° 28' 53" SECTION: 35 TOWNSHIP: 22S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 170 Lake Volume (ft3): 68,127,840 Average Depth (ft): 9.2 Shoreline Length (ft): 19,041 100 Year Flood (NGVD): 83.5 FEMA Historic Low Water Elevation (NGVD): 65.4 Historic High Water Elevation (NGVD): 82.4 Normal High Water Elevation (NHWE): 78.4 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: In Process ------10 Year Recent Trend Public Access: No

2008 TSI Score: 52 Historic TSI Graph:

LAKE HIAWASSEE Page 101

Legend Lake Hiawassee Sampling Locations

Orange County Outfalls BW26

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE HILL

Basin: Little Wekiva

LAT: 28° 38' 11" LONG: 81° 26' 15" SECTION: 29 TOWNSHIP: 21S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 21 Lake Volume (ft3): 10,428,264 Average Depth (ft): 11.4 Shoreline Length (ft): 4,351 100 Year Flood (NGVD): 65.7 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 64.7 Normal High Water Elevation (NHWE): 64.4 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 51 Historic TSI Graph:

LAKE HILL Page 103

Legend Lake Hill Sampling Locations

Orange County Outfalls LW9

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE HOLDEN

Basin: Boggy Creek

LAT: 28° 30' 16" LONG: 81° 23' 15" SECTION: 11 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 265 Lake Volume (ft3): 157,375,020 Average Depth (ft): 13.6 Shoreline Length (ft): 22,974 100 Year Flood (NGVD): 92.8 FEMA Historic Low Water Elevation (NGVD): 70.6 Historic High Water Elevation (NGVD): 92.6 Normal High Water Elevation (NHWE): 91.0 TMDL Impairment: Nutrients (TSI)

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 17** Advisory: No Treatment: Yes Overall Health: Very Poor Grass Carp: Yes Target Species: Diversity Index: 1.7** Acreage Treated: No

2008 TSI Score: 47 Historic TSI Graph:

** Data collected in 2007 LAKE HOLDEN Page 105

Legend Lake Holden Sampling Locations

Orange County Outfalls BC14M, BC14N, BC14NM, BC14S

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE HUCKLEBERRY

Basin: Reedy Creek

LAT: 28° 25' 55" LONG: 81° 36' 55" SECTION: 4 TOWNSHIP: 24S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 110 Lake Volume (ft3): 66,124,080 Average Depth (ft): 13.8 Shoreline Length (ft): 7,972 100 Year Flood (NGVD): 98.8 OCE Historic Low Water Elevation (NGVD): 41.8 Historic High Water Elevation (NGVD): 98.9 Normal High Water Elevation (NHWE): 97.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 31 Historic TSI Graph:

LAKE HUCKLEBERRY Page 107

Legend Lake Huckleberry Sampling Locations

Orange County Outfalls RC14

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE INGRAM

Basin: Reedy Creek

LAT: 28° 27' 39" LONG: 81° 38' 37" SECTION: 30 TOWNSHIP: 23S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 43 Lake Volume (ft3): 17,232,336 Average Depth (ft): 9.2 Shoreline Length (ft): 5,794 100 Year Flood (NGVD): 98 OCE Historic Low Water Elevation (NGVD): 80.2 Historic High Water Elevation (NGVD): 95.5 Normal High Water Elevation (NHWE): 95.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 54 Historic TSI Graph:

LAKE INGRAM Page 109

Legend Lake Ingram Sampling Locations

Orange County Outfalls RC15

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE ISLEWORTH

Basin: Cypress Creek

LAT: 28° 28' 21" LONG: 81° 31' 45" SECTION: 20 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 56 Lake Volume (ft3): 40,737,312 Average Depth (ft): 16.7 Shoreline Length (ft): 8,556 100 Year Flood (NGVD): 102.2 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): No Data Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes

2008 TSI Score: 34 Historic TSI Graph:

** Data collected in 2000 LAKE ISLEWORTH Page 111

Legend Lake Isleworth Sampling Locations

Orange County Outfalls CC11

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE JENNIE JEWEL

Basin: Boggy Creek

LAT: 28° 29' 53" LONG: 81° 22' 19" SECTION: 12 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 70 Lake Volume (ft3): 59,459,400 Average Depth (ft): 19.5 Shoreline Length (ft): 10,860 100 Year Flood (NGVD): 92 FEMA Historic Low Water Elevation (NGVD): 86.8 Historic High Water Elevation (NGVD): 91.8 Normal High Water Elevation (NHWE): 89.6 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: None To Date Advisory: No Treatment: No Data Overall Health: NA Grass Carp: No Target Species: Diversity Index: NA Acreage Treated: No

2008 TSI Score: 42 Historic TSI Graph:

LAKE JENNIE JEWEL Page 113

Legend Lake Jennie Jewel Sampling Locations

Orange County Outfalls BC16E, BC16W

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE JESSAMINE

Basin: Boggy Creek

LAT: 28° 28' 54" LONG: 81° 23' 06" SECTION: 14 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 292 Lake Volume (ft3): 204,360,288 Average Depth (ft): 16.1 Shoreline Length (ft): 26,420 100 Year Flood (NGVD): 94.1 FEMA Historic Low Water Elevation (NGVD): 87.6 Historic High Water Elevation (NGVD): 96.7 Normal High Water Elevation (NHWE): 92.4 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: None To Date Advisory: No Treatment: Yes Overall Health: NA Grass Carp: Yes Target Species: Diversity Index: NA Acreage Treated: No

2008 TSI Score: 49 Historic TSI Graph:

LAKE JESSAMINE Page 115

Legend Lake Jessamine Sampling Locations

Orange County Outfalls BC17M, BC17NE, BC17SW

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ JOHNS LAKE

Basin: Apopka

LAT: 28° 31' 49" LONG: 81° 39' 26" SECTION: 31 TOWNSHIP: 22S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 2,439 Lake Volume (ft3): 1,221,792,660 Average Depth (ft): 11.5 Shoreline Length (ft): 104,936 100 Year Flood (NGVD): 100.6 FEMA Historic Low Water Elevation (NGVD): 72.4 Historic High Water Elevation (NGVD): 98.5 Normal High Water Elevation (NHWE): 98.4 TMDL Impairment: Nutrients (TSI), Hg In Fish

TMDL Group: 1 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes, Johns Lake Park

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: None To Date Advisory: Yes Treatment: No Overall Health: NA Grass Carp: No Target Species: Diversity Index: NA Acreage Treated: No

2008 TSI Score: 56 Historic TSI Graph:

JOHNS LAKE Page 117

Legend Johns Lake Sampling Locations

Orange County Outfalls A50W, A59E

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE JUNE

Basin: Shingle Creek

LAT: 28° 31' 17" LONG: 81° 23' 41" SECTION: 3 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 4 Lake Volume (ft3): 1,428,768 Average Depth (ft): 8.2 Shoreline Length (ft): 1,546 100 Year Flood (NGVD): NA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): No Data Normal High Water Elevation (NHWE): 100.2 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 65 Historic TSI Graph:

LAKE JUNE Page 119

Legend Lake June Sampling Locations

Orange County Outfalls SC41

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE KILLARNEY

Basin: Howell Branch

LAT: 28° 35' 59" LONG: 81° 22' 28" SECTION: 1 TOWNSHIP: 22S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 239 Lake Volume (ft3): 149,916,096 Average Depth (ft): 14.4 Shoreline Length (ft): 22,738 100 Year Flood (NGVD): 85.4 FEMA Historic Low Water Elevation (NGVD): 52.3 Historic High Water Elevation (NGVD): 88.2 Normal High Water Elevation (NHWE): 83.0 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: No Data Advisory: No Treatment: No Overall Health: No Data Grass Carp: Yes Target Species: Diversity Index: No Data Acreage Treated: No

2008 TSI Score: 55 Historic TSI Graph:

LAKE KILLARNEY Page 121

Legend Lake Killarney Sampling Locations

Orange County Outfalls HB21

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE LAWNE

Basin: Little Wekiva

LAT: 28° 33' 54" LONG: 81° 26' 14" SECTION: 20 TOWNSHIP: 22S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 145 Lake Volume (ft3): 46,108,260 Average Depth (ft): 7.3 Shoreline Length (ft): 15,037 100 Year Flood (NGVD): 90.4 FEMA Historic Low Water Elevation (NGVD): 84.3 Historic High Water Elevation (NGVD): 92.5 Normal High Water Elevation (NHWE): 88.0 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes - Barnett Park

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 34** Advisory: No Treatment: Yes Overall Health: Poor Grass Carp: No Target Species: Diversity Index: 2.1** Acreage Treated: No

2008 TSI Score: 59 Historic TSI Graph:

** Data collected in 2007 LAKE LAWNE Page 123

Legend Lake Lawne Sampling Locations

Orange County Outfalls LW10M, LW10N, LW10S

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE LAKE BRYAN

Basin: Shingle Creek

LAT: 28° 22' 05" LONG: 81° 29' 44" SECTION: 27 TOWNSHIP: 24S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 214 Lake Volume (ft3): 223,724,160 Average Depth (ft): 24.0 Shoreline Length (ft): 12,690 100 Year Flood (NGVD): 100.1 FEMA Historic Low Water Elevation (NGVD): 97.0 Historic High Water Elevation (NGVD): 100.2 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 31 Historic TSI Graph:

** Data collected in 1997 LITTLE LAKE BRYAN Page 125

Legend Little Lake Bryan Sampling Locations

Orange County Outfalls SC1

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE LAKE CONWAY

Basin: Boggy Creek

LAT: 28° 29' 13" LONG: 81° 22' 06" SECTION: 18 TOWNSHIP: 23S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 640 Lake Volume (ft3): 629,923,020 Average Depth (ft): 22.6 Shoreline Length (ft): 55,804 100 Year Flood (NGVD): 89 FEMA Historic Low Water Elevation (NGVD): 74.3 Historic High Water Elevation (NGVD): 95.8 Normal High Water Elevation (NHWE): 86.9 TMDL Impairment: No Data

TMDL Group: 4 Graph Legend BMAP: No Data ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes, Randolph Boat Ramp

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: 67 Advisory: Yes Treatment: Yes Overall Health: Very Good Grass Carp: Yes Target Species: Diversity Index: 4.0 Acreage Treated: No

2008 TSI Score: 38 Historic TSI Graph:

LITTLE LAKE CONWAY Page 127

Legend Little Lake Conway Sampling Locations

Orange County Outfalls BC6, BC7

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ FISH LAKE

Basin: Cypress Creek

LAT: 28° 24' 35" LONG: 81° 30' 46" SECTION: 9 TOWNSHIP: 24S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 24 Lake Volume (ft3): 16,831,584 Average Depth (ft): 16.1 Shoreline Length (ft): 3,938 100 Year Flood (NGVD): 102 FEMA Historic Low Water Elevation (NGVD): 95.4 Historic High Water Elevation (NGVD): 101.8 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: No Data Advisory: Yes Treatment: Yes (Canal) Overall Health: No Data Grass Carp: No Target Species: A, J, U, W Diversity Index: No Data Acreage Treated: 5.55

2008 TSI Score: 50 Historic TSI Graph:

FISH LAKE Page 129

Legend Fish Lake Sampling Locations

Orange County Outfalls CC12

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE SAND LAKE

Basin: Shingle Creek

LAT: 28° 26' 43" LONG: 81° 29' 10" SECTION: 35 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 161 Lake Volume (ft3): 161,302,680 Average Depth (ft): 23.0 Shoreline Length (ft): 14,784 100 Year Flood (NGVD): 101.8 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 101.8 Normal High Water Elevation (NHWE): 95.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 20 Historic TSI Graph:

LITTLE SAND LAKE Page 131

Legend Little Sand Lake Sampling Locations

Orange County Outfalls SC17

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE LONG

Basin: Big Wekiva

LAT: 28° 37' 02" LONG: 81° 28' 03" SECTION: 36 TOWNSHIP: 21S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 119 Lake Volume (ft3): 90,195,336 Average Depth (ft): 17.4 Shoreline Length (ft): 18,186 100 Year Flood (NGVD): 76.7 FEMA Historic Low Water Elevation (NGVD): 51.1 Historic High Water Elevation (NGVD): 93.0 Normal High Water Elevation (NHWE): 68.0 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 57 Historic TSI Graph:

LAKE LONG Page 133

Legend Lake Long Sampling Locations

Orange County Outfalls BW37

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE LOUISE

Basin: Big Econ

LAT: 28° 35' 27" LONG: 81° 05' 54" SECTION: 10 TOWNSHIP: 22S RANGE: 32E

Characteristics

Origin: Natural Lake Surface Area (ac): 55 Lake Volume (ft3): 24,437,160 Average Depth (ft): 10.2 Shoreline Length (ft): 6,025 100 Year Flood (NGVD): 63.4 Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 64.3 Normal High Water Elevation (NHWE): 61.8 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 44 Historic TSI Graph:

LAKE LOUISE (BIG ECON BASIN) Page 135

Legend Lake Louise (Big Econ Basin) Sampling Locations

Orange County Outfalls BE7

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE LOUISE

Basin: Cypress Creek

LAT: 28° 28' 38" LONG: 81° 32' 06" SECTION: 20 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 136 Lake Volume (ft3): 85,307,904 Average Depth (ft): 14.4 Shoreline Length (ft): 16,339 100 Year Flood (NGVD): 100.2 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 99.4 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes, Keene Boat Ramp

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: No Data Advisory: Yes Treatment: Yes Overall Health: No Data Grass Carp: No Target Species: P, U, W Diversity Index: No Data Acreage Treated: 9.1

2008 TSI Score: 34 Historic TSI Graph:

LAKE LOUISE (CYPRESS CREEK BASIN) Page 137

Legend Lake Louise (Cypress Creek Basin) Sampling Locations

Orange County Outfalls CC13

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE LOVELY

Basin: Little Wekiva

LAT: 28° 37' 27" LONG: 81° 24' 42" SECTION: 33 TOWNSHIP: 21S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 31 Lake Volume (ft3): 6,616,764 Average Depth (ft): 4.9 Shoreline Length (ft): 4,311 100 Year Flood (NGVD): 81.5 OCE Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 79.4 Normal High Water Elevation (NHWE): 77.0 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

2008 TSI Score: 48 Historic TSI Graph:

LAKE LOVELY Page 139

Legend Lake Lovely Sampling Locations

Orange County Outfalls LW40

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE MABEL

Basin: Reedy Creek

LAT: 28° 25' 50" LONG: 81° 32' 41" SECTION: 6 TOWNSHIP: 24S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 394 Lake Volume (ft3): 231,695,640 Average Depth (ft): 13.5 Shoreline Length (ft): 23,259 100 Year Flood (NGVD): 96.6 FEMA Historic Low Water Elevation (NGVD): 91.6 Historic High Water Elevation (NGVD): 93.9 Normal High Water Elevation (NHWE): 94.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 34 Historic TSI Graph:

LAKE MABEL Page 141

Legend Lake Mabel Sampling Locations

Orange County Outfalls RC17

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE MANN

Basin: Shingle Creek

LAT: 28° 32' 14" LONG: 81° 25' 34" SECTION: 32 TOWNSHIP: 22S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 255 Lake Volume (ft3): 126,628,920 Average Depth (ft): 11.4 Shoreline Length (ft): 15,701 100 Year Flood (NGVD): 95 FEMA Historic Low Water Elevation (NGVD): 88.3 Historic High Water Elevation (NGVD): 96.7 Normal High Water Elevation (NHWE): 91.7 TMDL Impairment: Nutrients (TSI)

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 44 Advisory: Yes Treatment: No Overall Health: Good Grass Carp: Yes Target Species: P Diversity Index: 3.7 Acreage Treated: 4.75

2008 TSI Score: 61 Historic TSI Graph:

LAKE MANN Page 143

Legend Lake Mann Sampling Locations

Orange County Outfalls SC12

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE MARSHA

Basin: Shingle Creek

LAT: 28° 28' 40" LONG: 81° 28' 55" SECTION: 23 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 86 Lake Volume (ft3): 103,394,016 Average Depth (ft): 27.6 Shoreline Length (ft): 9,901 100 Year Flood (NGVD): 129.7 FEMA Historic Low Water Elevation (NGVD): 124.0 Historic High Water Elevation (NGVD): 129.9 Normal High Water Elevation (NHWE): 128.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 27 Historic TSI Graph:

LAKE MARSHA Page 145

Legend Lake Marsha Sampling Locations

Orange County Outfalls SC13

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE MARY JANE

Basin: Hart

LAT: 28° 22' 23" LONG: 81° 10' 45" SECTION: 26 TOWNSHIP: 24S RANGE: 31E

Characteristics

Origin: Natural Lake Surface Area (ac): 1,135 Lake Volume (ft3): 341,140,140 Average Depth (ft): 6.9 Shoreline Length (ft): 41,997 100 Year Flood (NGVD): 64 OCE Historic Low Water Elevation (NGVD): 56.9 Historic High Water Elevation (NGVD): 63.4 Normal High Water Elevation (NHWE): 61.5 TMDL Impairment: Pb And Hg(In Fish)

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes, Moss Park

2008 TSI Score: 48 Historic TSI Graph:

** Data collected in 1999 LAKE MARY JANE Page 147

Legend Lake Mary Jane Sampling Locations

Orange County Outfalls H3

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE MARY JESS

Basin: Boggy Creek

LAT: 28° 28' 33" LONG: 81° 22' 11" SECTION: 23 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 50 Lake Volume (ft3): No Data Average Depth (ft): 19.4 Shoreline Length (ft): 5,548 100 Year Flood (NGVD): 95.3 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 94.6 Normal High Water Elevation (NHWE): 93.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

2008 TSI Score: 33 Historic TSI Graph:

LAKE MARY JESS Page 149

Legend Lake Mary Jess Sampling Locations

Orange County Outfalls BC20

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE MCCOY

Basin: Big Wekiva

LAT: 28° 41' 21" LONG: 81° 29' 49" SECTION: 3 TOWNSHIP: 21S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 87 Lake Volume (ft3): 22,359,348 Average Depth (ft): 5.9 Shoreline Length (ft): 15,821 100 Year Flood (NGVD): 66.5 FEMA Historic Low Water Elevation (NGVD): 52.4 Historic High Water Elevation (NGVD): 62.0 Normal High Water Elevation (NHWE): 61.5 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: MSBU ------10 Year Recent Trend Public Access: No

2008 TSI Score: 63 Historic TSI Graph:

* Data not available for all 4 quarters LAKE MCCOY Page 151

Legend Lake McCoy Sampling Locations

Orange County Outfalls BW41

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE NAN

Basin: Howell Branch

LAT: 28° 36' 26" LONG: 81° 16' 50" SECTION: 23 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 27 Lake Volume (ft3): 23,522,400 Average Depth (ft): 20.0 Shoreline Length (ft): 4,197 100 Year Flood (NGVD): 66.8 Historic Low Water Elevation (NGVD): 63.2 Historic High Water Elevation (NGVD): 66.0 Normal High Water Elevation (NHWE): 64.7 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 40 Historic TSI Graph:

LAKE NAN Page 153

Legend Lake Nan Sampling Locations

Orange County Outfalls HB29

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE OLA

Basin: Apopka

LAT: 28° 45' 15" LONG: 81° 38' 05" SECTION: 17 TOWNSHIP: 20S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 439 Lake Volume (ft3): 313,614,576 Average Depth (ft): 16.4 Shoreline Length (ft): 20,631 100 Year Flood (NGVD): 74.4 FEMA Historic Low Water Elevation (NGVD): 70.7 Historic High Water Elevation (NGVD): 77.3 Normal High Water Elevation (NHWE): 73.0 TMDL Impairment: None

TMDL Group: 1 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 77** Advisory: No Treatment: No Overall Health: Very Good Grass Carp: Yes Target Species: Diversity Index: 3.5** Acreage Treated: 16

2008 TSI Score: 28 Historic TSI Graph:

** Data collected in 2006 LAKE OLA Page 155

Legend Lake Ola Sampling Locations

Orange County Outfalls A29

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE OLIVER

Basin: Reedy Creek

LAT: 28° 22' 10" LONG: 81° 38' 50" SECTION: 30 TOWNSHIP: 24S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 21 Lake Volume (ft3): 12,503,462 Average Depth (ft): 13.8 Shoreline Length (ft): 3,695 100 Year Flood (NGVD): 114.4 FEMA Historic Low Water Elevation (NGVD): 108.0 Historic High Water Elevation (NGVD): 113.6 Normal High Water Elevation (NHWE): 112.7 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 43 Historic TSI Graph:

LAKE OLIVER Page 157

Legend Lake Oliver Sampling Locations

Orange County Outfalls RC20

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE OLIVIA

Basin: Big Wekiva

LAT: 28° 31' 23" LONG: 81° 31' 06" SECTION: 33 TOWNSHIP: 22S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 86 Lake Volume (ft3): 62,560,872 Average Depth (ft): 16.7 Shoreline Length (ft): 8,515 100 Year Flood (NGVD): 97.7 OCE Historic Low Water Elevation (NGVD): 75.5 Historic High Water Elevation (NGVD): 94.1 Normal High Water Elevation (NHWE): 93.7 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 25* Advisory: No Treatment: Yes Overall Health: Poor Grass Carp: No Target Species: A, P Diversity Index: 2.2** Acreage Treated: 15.5

2008 TSI Score: 47 Historic TSI Graph:

** Data collected in 2003 LAKE OLIVIA Page 159

Legend Lake Olivia Sampling Locations

Orange County Outfalls BW45

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE ORLANDO

Basin: Little Wekiva

LAT: 28° 35' 51" LONG: 81° 25' 53" SECTION: 5 TOWNSHIP: 22S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 183 Lake Volume (ft3): 57,394,656 Average Depth (ft): 7.2 Shoreline Length (ft): 15,170 100 Year Flood (NGVD): 87.9 FEMA Historic Low Water Elevation (NGVD): 22.8 Historic High Water Elevation (NGVD): 84.9 Normal High Water Elevation (NHWE): No Data TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 60 Historic TSI Graph:

LAKE ORLANDO (WEKIWA) Page 161

Legend Lake Orlando (Wekiwa) Sampling Locations

Orange County Outfalls LW19

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ PALM LAKE

Basin: Shingle Creek

LAT: 28° 27' 42" LONG: 81° 29' 11" SECTION: 22 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 20 Lake Volume (ft3): 21,562,200 Average Depth (ft): 24.8 Shoreline Length (ft): No Data 100 Year Flood (NGVD): 149.5 OCE Historic Low Water Elevation (NGVD): 144.5 Historic High Water Elevation (NGVD): 153.5 Normal High Water Elevation (NHWE): 144.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 13 Historic TSI Graph:

PALM LAKE Page 163

Legend Palm Lake Sampling Locations

Orange County Outfalls SC14

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE PANTHER

Basin: Reedy Creek

LAT: 28° 25' 38" LONG: 81° 37' 52" SECTION: 5 TOWNSHIP: 24S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 35 Lake Volume (ft3): 14,941,080 Average Depth (ft): 9.8 Shoreline Length (ft): 5,443 100 Year Flood (NGVD): NA Historic Low Water Elevation (NGVD): 91.6 Historic High Water Elevation (NGVD): 98.9 Normal High Water Elevation (NHWE): 97.4 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 39 Historic TSI Graph:

LAKE PANTHER Page 165

Legend Lake Panther Sampling Locations

Orange County Outfalls RC41

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE PEARL

Basin: Big Wekiva

LAT: 28° 32' 30" LONG: 81° 31' 58" SECTION: 29 TOWNSHIP: 22S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 16 Lake Volume (ft3): 4,809,024 Average Depth (ft): 6.9 Shoreline Length (ft): 4,035 100 Year Flood (NGVD): 122.30 FEMA Historic Low Water Elevation (NGVD): 69.1 Historic High Water Elevation (NGVD): 118.7 Normal High Water Elevation (NHWE): 117.4 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 48 Historic TSI Graph:

LAKE PEARL (BIG WEKIVA BASIN) Page 167

Legend Lake Pearl (Big Wekiva Basin) Sampling Locations

Orange County Outfalls BW70

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE PEARL

Basin: Howell Branch

LAT: 28° 36' 15" LONG: 81° 15' 51" SECTION: 1 TOWNSHIP: 22S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 64 Lake Volume (ft3): 44,047,872 Average Depth (ft): 15.8 Shoreline Length (ft): 7,858 100 Year Flood (NGVD): 56.00 FEMA Historic Low Water Elevation (NGVD): 51.9 Historic High Water Elevation (NGVD): 55.1 Normal High Water Elevation (NHWE): 54.0 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 61 Historic TSI Graph:

LAKE PEARL (HOWELL BRANCH BASIN) Page 169

Legend Lake Pearl (Howell Branch Basin) Sampling Locations

Orange County Outfalls HB33

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE PICKETT

Basin: Big Econ

LAT: 28° 36' 16" LONG: 81° 06' 44" SECTION: 4 TOWNSHIP: 22S RANGE: 32E

Characteristics

Origin: Natural Lake Surface Area (ac): 762 Lake Volume (ft3): 614,065,320 Average Depth (ft): 18.5 Shoreline Length (ft): 40,603 100 Year Flood (NGVD): 58.8 Historic Low Water Elevation (NGVD): 50.8 Historic High Water Elevation (NGVD): 58.2 Normal High Water Elevation (NHWE): 56.8 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

2008 TSI Score: 33 Historic TSI Graph:

LAKE PICKETT Page 171

Legend Lake Pickett Sampling Locations

Orange County Outfalls BE9E, BE9W

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE PINELOCH

Basin: Boggy Creek

LAT: 28° 30' 26" LONG: 81° 22' 01" SECTION: 12 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 58 Lake Volume (ft3): 43,202,808 Average Depth (ft): 17.1 Shoreline Length (ft): 7,304 100 Year Flood (NGVD): 95.8 FEMA Historic Low Water Elevation (NGVD): 88.2 Historic High Water Elevation (NGVD): 97.9 Normal High Water Elevation (NHWE): 93.0 TMDL Impairment: Nutrients (TSI)

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 57 Historic TSI Graph:

LAKE PINELOCH Page 173

Legend Lake Pineloch Sampling Locations

Orange County Outfalls BC22

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE PLEASANT

Basin: Big Wekiva

LAT: 28° 39' 24" LONG: 81° 28' 51" SECTION: 14 TOWNSHIP: 21S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 53 Lake Volume (ft3): 17,545,968 Average Depth (ft): 7.6 Shoreline Length (ft): 9,024 100 Year Flood (NGVD): 82.6 FEMA Historic Low Water Elevation (NGVD): 64.1 Historic High Water Elevation (NGVD): 82.2 Normal High Water Elevation (NHWE): 73.8 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 54 Historic TSI Graph:

* Data not available for all 4 quarters LAKE PLEASANT Page 175

Legend Lake Pleasant Sampling Locations

Orange County Outfalls BW51

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ POCKET LAKE

Basin: Cypress Creek

LAT: 28° 25' 14" LONG: 81° 30' 46" SECTION: 4 TOWNSHIP: 24S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 128 Lake Volume (ft3): 100,362,240 Average Depth (ft): 18.0 Shoreline Length (ft): 10,486 100 Year Flood (NGVD): 102 FEMA Historic Low Water Elevation (NGVD): 94.2 Historic High Water Elevation (NGVD): 101.4 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes

2008 TSI Score: 37 Historic TSI Graph:

POCKET LAKE Page 177

Legend Pocket Lake Sampling Locations

Orange County Outfalls CC22

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE PREVATT

Basin: Big Wekiva

LAT: 28° 42' 42" LONG: 81° 29' 22" SECTION: 35 TOWNSHIP: 20S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 100 Lake Volume (ft3): 130,244,400 Average Depth (ft): 29.9 Shoreline Length (ft): 18,585 100 Year Flood (NGVD): 60.5 FEMA Historic Low Water Elevation (NGVD): 47.4 Historic High Water Elevation (NGVD): 61.6 Normal High Water Elevation (NHWE): 56.5 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 72 Historic TSI Graph:

LAKE PREVATT Page 179

Legend Lake Prevatt Sampling Locations

Orange County Outfalls BW52

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE PRICE

Basin: Big Econ

LAT: 28° 35' 50" LONG: 81° 10' 29" SECTION: 12 TOWNSHIP: 22S RANGE: 31E

Characteristics

Origin: Natural Lake Surface Area (ac): 86 Lake Volume (ft3): 50,573,160 Average Depth (ft): 13.5 Shoreline Length (ft): 8,564 100 Year Flood (NGVD): 53.7 OCE Historic Low Water Elevation (NGVD): 47.2 Historic High Water Elevation (NGVD): 55.0 Normal High Water Elevation (NHWE): 52.0 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

2008 TSI Score: 35 Historic TSI Graph:

LAKE PRICE Page 181

Legend Lake Price Sampling Locations

Orange County Outfalls BE10

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE REAMS

Basin: Reedy Creek

LAT: 28° 26' 20" LONG: 81° 34' 28" SECTION: 35 TOWNSHIP: 23S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 117 Lake Volume (ft3): 78,486,408 Average Depth (ft): 15.4 Shoreline Length (ft): 9,244 100 Year Flood (NGVD): 99.43 OCE Historic Low Water Elevation (NGVD): 95.8 Historic High Water Elevation (NGVD): 97.8 Normal High Water Elevation (NHWE): 96.9 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 24 Historic TSI Graph:

* Data not available for all 4 quarters LAKE REAMS Page 183

Legend Lake Reams Sampling Locations

Orange County Outfalls RC43

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE REXFORD

Basin: Reedy Creek

LAT: 28° 21' 04" LONG: 81° 38' 29" SECTION: 31 TOWNSHIP: 24S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 29 Lake Volume (ft3): 21,980,376 Average Depth (ft): 17.4 Shoreline Length (ft): 4,769 100 Year Flood (NGVD): 112.3 OCE Historic Low Water Elevation (NGVD): 106.2 Historic High Water Elevation (NGVD): 111.4 Normal High Water Elevation (NHWE): 111.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 28 Historic TSI Graph:

LAKE REXFORD Page 185

Legend Lake Rexford Sampling Locations

Orange County Outfalls RC28

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE ROBERTS

Basin: Apopka

LAT: 28° 31' 03" LONG: 81° 34' 17" SECTION: 1 TOWNSHIP: 23S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 116 Lake Volume (ft3): 77,815,584 Average Depth (ft): 15.4 Shoreline Length (ft): 11,036 100 Year Flood (NGVD): 111.5 OCE Historic Low Water Elevation (NGVD): 99.7 Historic High Water Elevation (NGVD): 112.2 Normal High Water Elevation (NHWE): 109.0 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

2008 TSI Score: 63 Historic TSI Graph:

LAKE ROBERTS Page 187

Legend Lake Roberts Sampling Locations

Orange County Outfalls A33

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE ROBINSON

Basin: Reedy Creek

LAT: 28° 28' 19" LONG: 81° 34' 54" SECTION: 23 TOWNSHIP: 23S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 6 Lake Volume (ft3): 2,780,870 Average Depth (ft): 11.2 Shoreline Length (ft): 7,104 100 Year Flood (NGVD): 107.6 OCE Historic Low Water Elevation (NGVD): 104.7 Historic High Water Elevation (NGVD): 107.9 Normal High Water Elevation (NHWE): 106.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 37 Historic TSI Graph:

LAKE ROBINSON Page 189

Legend Lake Robinson Sampling Locations

Orange County Outfalls RC44

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE ROPER

Basin: Apopka

LAT: 28° 31' 36" LONG: 81° 17' 44" SECTION: 3 TOWNSHIP: 23S RANGE: 30E

Characteristics

Origin: Natural Lake Surface Area (ac): 35 Lake Volume (ft3): 21,496,860 Average Depth (ft): 14.1 Shoreline Length (ft): 8,574 100 Year Flood (NGVD): 104.5 OCE Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 104.2 Normal High Water Elevation (NHWE): 102.5 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 46 Historic TSI Graph:

LAKE ROPER Page 191

Legend Lake Roper Sampling Locations

Orange County Outfalls A34

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE ROSE

Basin: Big Wekiva

LAT: 28° 33' 24" LONG: 81° 30' 22" SECTION: 22 TOWNSHIP: 22S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 90 Lake Volume (ft3): 41,164,200 Average Depth (ft): 10.5 Shoreline Length (ft): 11,273 100 Year Flood (NGVD): 89.5 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 87.0 Normal High Water Elevation (NHWE): 70.7 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 54 Historic TSI Graph:

LAKE ROSE Page 193

Legend Lake Rose Sampling Locations

Orange County Outfalls BW53

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE ROUSE

Basin: Little Econ

LAT: 28° 34' 23" LONG: 81° 12' 43" SECTION: 16 TOWNSHIP: 22S RANGE: 31E

Characteristics

Origin: Natural Lake Surface Area (ac): 33 Lake Volume (ft3): 24,580,908 Average Depth (ft): 17.1 Shoreline Length (ft): 4,636 100 Year Flood (NGVD): 70 OCE Historic Low Water Elevation (NGVD): 65.5 Historic High Water Elevation (NGVD): 68.9 Normal High Water Elevation (NHWE): 68.0 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 45 Historic TSI Graph:

LAKE ROUSE Page 195

Legend Lake Rouse Sampling Locations

Orange County Outfalls LE40

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE SARAH

Basin: Little Wekiva

LAT: 28° 35' 07" LONG: 81° 24' 09" SECTION: 10 TOWNSHIP: 22S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 15 Lake Volume (ft3): 6,860,700 Average Depth (ft): 10.5 Shoreline Length (ft): 3,051 100 Year Flood (NGVD): No Data Historic Low Water Elevation (NGVD): 86.0 Historic High Water Elevation (NGVD): 89.0 Normal High Water Elevation (NHWE): 88.7 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: Yes

2008 TSI Score: 57 Historic TSI Graph:

LAKE SARAH Page 197

Legend Lake Sarah Sampling Locations

Orange County Outfalls LW30

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE SAWGRASS

Basin: Reedy Creek

LAT: 28° 26' 37" LONG: 81° 36' 27" SECTION: 33 TOWNSHIP: 23S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 64 Lake Volume (ft3): 31,223,808 Average Depth (ft): 11.2 Shoreline Length (ft): 10,052 100 Year Flood (NGVD): NA Historic Low Water Elevation (NGVD): 92.9 Historic High Water Elevation (NGVD): 99.5 Normal High Water Elevation (NHWE): 98.3 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 33 Historic TSI Graph:

LAKE SAWGRASS Page 199

Legend Lake Sawgrass Sampling Locations

Orange County Outfalls RC42

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE SAWYER

Basin: Reedy Creek

LAT: 28° 28' 07" LONG: 81° 34' 02" SECTION: 24 TOWNSHIP: 23S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 93 Lake Volume (ft3): 67,653,036 Average Depth (ft): 16.7 Shoreline Length (ft): 9,144 100 Year Flood (NGVD): 107.6 OCE Historic Low Water Elevation (NGVD): 103.6 Historic High Water Elevation (NGVD): 105.0 Normal High Water Elevation (NHWE): 106.0 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

2008 TSI Score: 33 Historic TSI Graph:

LAKE SAWYER (BUTT) Page 201

Legend Lake Sawyer (Butt) Sampling Locations

Orange County Outfalls RC29

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE SHADOW

Basin: Little Wekiva

LAT: 28° 37' 19" LONG: 81° 24' 11" SECTION: 34 TOWNSHIP: 21S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 75 Lake Volume (ft3): 52,598,700 Average Depth (ft): 16.1 Shoreline Length (ft): 8,326 100 Year Flood (NGVD): 84.6 FEMA Historic Low Water Elevation (NGVD): 80.1 Historic High Water Elevation (NGVD): 84.3 Normal High Water Elevation (NHWE): 81.4 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 43 Historic TSI Graph:

LAKE SHADOW Page 203

Legend Lake Shadow Sampling Locations

Orange County Outfalls LW17

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE SHEEN

Basin: Cypress Creek

LAT: 28° 25' 55" LONG: 81° 31' 12" SECTION: 4 TOWNSHIP: 24S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 569 Lake Volume (ft3): 374,263,164 Average Depth (ft): 15.1 Shoreline Length (ft): 23,663 100 Year Flood (NGVD): 102.1 FEMA Historic Low Water Elevation (NGVD): 71.9 Historic High Water Elevation (NGVD): 100.9 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes, Keene Boat Ramp

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: No Data Advisory: Yes Treatment: Yes Overall Health: No Data Grass Carp: No Target Species: A, P, W, BB Diversity Index: No Data Acreage Treated: 8.455

2008 TSI Score: 24 Historic TSI Graph:

LAKE SHEEN Page 205

Legend Lake Sheen Sampling Locations

Orange County Outfalls CC17

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE SHERWOOD

Basin: Big Wekiva

LAT: 28° 33' 03" LONG: 81° 29' 51" SECTION: 27 TOWNSHIP: 22S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 177 Lake Volume (ft3): 75,559,176 Average Depth (ft): 9.8 Shoreline Length (ft): 8,355 100 Year Flood (NGVD): 90.2 FEMA Historic Low Water Elevation (NGVD): 55.0 Historic High Water Elevation (NGVD): 87.9 Normal High Water Elevation (NHWE): 69.1 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 53 Historic TSI Graph:

* Data not available for all 4 quarters LAKE SHERWOOD Page 207

Legend Lake Sherwood Sampling Locations

Orange County Outfalls BW54

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ SOUTH LAKE

Basin: Reedy Creek

LAT: 28° 25' 05" LONG: 81° 32' 13" SECTION: 8 TOWNSHIP: 24S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 127 Lake Volume (ft3): 65,279,016 Average Depth (ft): 11.8 Shoreline Length (ft): 10,171 100 Year Flood (NGVD): 96.6 FEMA Historic Low Water Elevation (NGVD): 91.6 Historic High Water Elevation (NGVD): 95.7 Normal High Water Elevation (NHWE): 94.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 43 Historic TSI Graph:

SOUTH LAKE Page 209

Legend South Lake Sampling Locations

Orange County Outfalls RC32

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE SPEER

Basin: Reedy Creek

LAT: 28° 28' 45" LONG: 81° 35' 55" SECTION: 15 TOWNSHIP: 23S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 233 Lake Volume (ft3): 137,017,980 Average Depth (ft): 13.5 Shoreline Length (ft): 13,325 100 Year Flood (NGVD): 101.4 FEMA Historic Low Water Elevation (NGVD): 83.1 Historic High Water Elevation (NGVD): 101.7 Normal High Water Elevation (NHWE): 100.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 52 Historic TSI Graph:

LAKE SPEER Page 211

Legend Lake Speer Sampling Locations

Orange County Outfalls RC33

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ SPRING LAKE

Basin: Shingle Creek

LAT: 28° 27' 17" LONG: 81° 28' 59" SECTION: 26 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 102 Lake Volume (ft3): 112,410,936 Average Depth (ft): 25.3 Shoreline Length (ft): 9,091 100 Year Flood (NGVD): 102.1 FEMA Historic Low Water Elevation (NGVD): 74.5 Historic High Water Elevation (NGVD): 112.3 Normal High Water Elevation (NHWE): 98.7 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: 61 Advisory: No Treatment: No Overall Health: Very Good Grass Carp: No Target Species: Diversity Index: 3.1 Acreage Treated: No

2008 TSI Score: 30 Historic TSI Graph:

SPRING LAKE Page 213

Legend Spring Lake Sampling Locations

Orange County Outfalls SC21

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE TANNER

Basin: Big Econ

LAT: 28° 34' 56" LONG: 81° 09' 09" SECTION: 18 TOWNSHIP: 22S RANGE: 32E

Characteristics

Origin: Natural Lake Surface Area (ac): 55 Lake Volume (ft3): 28,989,180 Average Depth (ft): 12.1 Shoreline Length (ft): 6,180 100 Year Flood (NGVD): 50.1 Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 48.8 Normal High Water Elevation (NHWE): 48.3 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 33 Historic TSI Graph:

LAKE TANNER Page 215

Legend Lake Tanner Sampling Locations

Orange County Outfalls BE12

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE TIBET

Basin: Cypress Creek

LAT: 28° 27' 11" LONG: 81° 31' 25" SECTION: 28 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 1,070 Lake Volume (ft3): 857,609,280 Average Depth (ft): 18.4 Shoreline Length (ft): 57,066 100 Year Flood (NGVD): 102.2 FEMA Historic Low Water Elevation (NGVD): 86.4 Historic High Water Elevation (NGVD): 103.7 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: No Data Advisory: Yes Treatment: Yes Overall Health: No Data Grass Carp: No Target Species: A, J, P Diversity Index: No Data Acreage Treated: 8.005

2008 TSI Score: 31 Historic TSI Graph:

LAKE TIBET Page 217

Legend Lake Tibet Sampling Locations

Orange County Outfalls CC18

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE TILDEN

Basin: Apopka

LAT: 28° 31' 11" LONG: 81° 36' 05" SECTION: 3 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 40 Lake Volume (ft3): 17,772,480 Average Depth (ft): 10.2 Shoreline Length (ft): 8,492 100 Year Flood (NGVD): 100.6 OCE Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 96.7 Normal High Water Elevation (NHWE): 95.8 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 51 Historic TSI Graph:

LAKE TILDEN Page 219

Legend Lake Tilden Sampling Locations

Orange County Outfalls A42

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE TUB

Basin: Reedy Creek

LAT: 28° 25' 37" LONG: 81° 36' 48" SECTION: 4 TOWNSHIP: 24S RANGE: 27E

Characteristics

Origin: Natural Lake Surface Area (ac): 42 Lake Volume (ft3): 21,588,336 Average Depth (ft): 11.8 Shoreline Length (ft): 5,641 100 Year Flood (NGVD): NA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): No Data Normal High Water Elevation (NHWE): No Data TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 45 Historic TSI Graph:

LAKE TUB Page 221

Legend Lake Tub Sampling Locations

Orange County Outfalls RC36

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE TYLER

Basin: Shingle Creek

LAT: 28° 29' 26" LONG: 81° 23' 55" SECTION: 15 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 23 Lake Volume (ft3): 16,130,268 Average Depth (ft): 16.1 Shoreline Length (ft): 6,259 100 Year Flood (NGVD): 94.7 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 95.0 Normal High Water Elevation (NHWE): 94.4 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 41 Historic TSI Graph:

LAKE TYLER Page 223

Legend Lake Tyler Sampling Locations

Orange County Outfalls SC5

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE TYNER

Basin: Boggy Creek

LAT: 28° 28' 49" LONG: 81° 23' 34" SECTION: 15 TOWNSHIP: 23S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 6 Lake Volume (ft3): 1,803,384 Average Depth (ft): 6.9 Shoreline Length (ft): 1,898 100 Year Flood (NGVD): 94.1 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 92.7 Normal High Water Elevation (NHWE): 92.4 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 58 Historic TSI Graph:

LAKE TYNER Page 225

Legend Lake Tyner Sampling Locations

Orange County Outfalls BC45

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE WAUNATTA

Basin: Howell Branch

LAT: 28° 36' 08" LONG: 81° 16' 43" SECTION: 2 TOWNSHIP: 22S RANGE: 30S

Characteristics

Origin: Natural Lake Surface Area (ac): 70 Lake Volume (ft3): 31,101,840 Average Depth (ft): 10.2 Shoreline Length (ft): 8,024 100 Year Flood (NGVD): 63.8 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 63.3 Normal High Water Elevation (NHWE): 62.7 TMDL Impairment: None

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: No Fish Consumption LCI Score: No Data Advisory: No Treatment: No Overall Health: No Data Grass Carp: Yes Target Species: Diversity Index: No Data Acreage Treated: No

2008 TSI Score: 45 Historic TSI Graph:

LAKE WAUNATTA Page 227

Legend Lake Waunatta Sampling Locations

Orange County Outfalls HB40

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE WAUSEON BAY

Basin: Cypress Creek

LAT: 28° 30' 06" LONG: 81° 31' 35" SECTION: 7 TOWNSHIP: 23S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 125 Lake Volume (ft3): 133,947,000 Average Depth (ft): 24.6 Shoreline Length (ft): 14,887 100 Year Flood (NGVD): 102.3 FEMA Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 101.6 Normal High Water Elevation (NHWE): 99.5 TMDL Impairment: Historic TSI (Nutrients)

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: Yes

Biological Information Plant Management Fish Management Macroinvertebrates Surveys: Yes Fish Consumption LCI Score: 58** Advisory: No Treatment: No Overall Health: Very Good Grass Carp: No Target Species: J, W Diversity Index: 3.4** Acreage Treated: 2.007

2008 TSI Score: 32 Historic TSI Graph:

** Data collected in 2007 LAKE WAUSEON BAY Page 229

Legend Lake Wauseon Bay Sampling Locations

Orange County Outfalls CC21

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE WESTON

Basin: Little Wekiva

LAT: 28° 36' 58" LONG: 81° 24' 33" SECTION: 34 TOWNSHIP: 21S RANGE: 29E

Characteristics

Origin: Natural Lake Surface Area (ac): 31 Lake Volume (ft3): 30,113,028 Average Depth (ft): 22.3 Shoreline Length (ft): 4,046 100 Year Flood (NGVD): 84.6 OCE Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 83.7 Normal High Water Elevation (NHWE): 82.8 TMDL Impairment: Nutrients (TSI)

TMDL Group: 2 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 59 Historic TSI Graph:

LAKE WESTON Page 231

Legend Lake Weston Sampling Locations

Orange County Outfalls LW20

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE WHIPPOORWILL

Basin: Hart

LAT: 28° 23' 20" LONG: 81° 14' 10" SECTION: 20 TOWNSHIP: 24S RANGE: 31E

Characteristics

Origin: Natural Lake Surface Area (ac): 326 Lake Volume (ft3): 186,027,336 Average Depth (ft): 13.1 Shoreline Length (ft): 17,786 100 Year Flood (NGVD): 68 OCE Historic Low Water Elevation (NGVD): No Data Historic High Water Elevation (NGVD): 66.7 Normal High Water Elevation (NHWE): 65.6 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: Yes ------10 Year Recent Trend Public Access: No

2008 TSI Score: 25 Historic TSI Graph:

LAKE WHIPPOORWILL Page 233

Legend Lake Whippoorwill Sampling Locations

Orange County Outfalls H6

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LAKE WILLIS

Basin: Shingle Creek

LAT: 28° 23' 54" LONG: 81° 28' 44" SECTION: 14 TOWNSHIP: 24S RANGE: 28E

Characteristics

Origin: Natural Lake Surface Area (ac): 129 Lake Volume (ft3): 93,841,308 Average Depth (ft): 16.7 Shoreline Length (ft): 9,491 100 Year Flood (NGVD): 107.9 FEMA Historic Low Water Elevation (NGVD): 10.6 Historic High Water Elevation (NGVD): 106.9 Normal High Water Elevation (NHWE): 104.5 TMDL Impairment: None

TMDL Group: 4 Graph Legend BMAP: No ———-Historic TSI Trend (R2) MSTU: No ------10 Year Recent Trend Public Access: No

2008 TSI Score: 25 Historic TSI Graph:

LAKE WILLIS Page 235

Legend Lake Willis Sampling Locations

Orange County Outfalls SC40

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BATHYMETRIC DATA Bay Lake Bathymetric Contours Data Collected: May 25, 2006 Volume: 478,047 cubic yards Acreage: 36 acres ± Depth range: 0-19 ft. 0 160 320 640 Feet

4_00 0 4_00 2_0 2_00 7_00 3_00 6_00 5_00 2_00 2_00 2_00 3_00 5_00 1_00 3_00 14_00 17_00

19_00 3_00 18_00 15_00 2_00 16_00 00 13_00 3_ 8_00 2_00

11_00 13_00

1_00 3_00 1_00

2_00 3_00

4_00 13_00

3_00

14_00 10_00 16_00 10_00 11_00 17_00 3_0 18_00 3_00 2_00 0

1_00 3_00 12_00 15_00 11_00 10_00 9_00 2_00 5_00 8_00 3_00 6_00 4_00 3_00 2_00 1_00 1_00 4_00 3_00 2_00 5_00 5_00 4_00 2_00 3_00 3_00 3_00 4_00 3_00 2_00

Contour depths (ft)

1_00 11_00 2_00 12_00 4_00 14_00 6_00 16_00 8_00 18_00 April 2005 Aerial 10_00 19_00 Clear Lake Bathymetric Contours Date Collection Completed: August 3, 2007 Lake Volume: 7,498,668 cubic yards Lake Elevation: July 5, 2007: 94.06 ft Acreage: 352 acres Depth Range: 0-31 ft ± 0 875 1,750 3,500 Feet

3_00

2_00

4_0 3_00

18_00 6_00

1_00 5_00 3_00 18_00 12_00 1_00 10_00

7_00 2_009_00 1_00 20_00

8_00 1_00 14_00

3_00 16_00 18_00 5_00 17_00 19_00 20_00 4_00 3_00 3_00 19_00 2_00 4_00 15_00

20_00 17_00 1_00 21_00

3_00 13_0 3_00

12_00 0

12_00

3_00 10_00 14_00 24_00 14_00 20_00 2_00 4_00 7_00 15_00 3_00 14_00 23_00 5_00 12_00 24_00

_00

9 8_00 3_00 2_00 8_00 24_00 3_00 3_00 1_00 3_00 2_00 2_00 1_00 25_00 3_00 3_00 27_00 26_00 27_00 5_00 1_00 3_00 9_00 27_00 22_00 00 0 28_ 11_00 8_0 2_00 0 19_00 1_00 3_00 4_00 20_0 29_00 2_00 6_00 24_00 2_00 8_00 1_00 7_00 12_00

10_00 6_00 4_00 7_00 11_00 5_00 11_00 8_00 10_00 13_00 2_00 4_00 9_00 2_00 16_00 7_00 8_00 4_00 1_00 12_00 _00 7 5_00 4_00 2_00

3_00 5_00 1_00 15_00 10_00 _00 4_00 5 16_00 13_00 2_00 4_00 4_00 3_00 4_00 5_00 5_00 4_00

4_00 5_00

4_00 0

4_0 Contour Depth (ft)

2_00 3_00 1_00 12_00

4_00 4_00 24_00

4_00 2_00 14_00 4_00 26_00 4_00 16_00 28_00 6_00 18_00 30_00 8_00 20_00 31_00 10_00 22_00

April 2006 Aerial Lake Cane Bathymetric Contours Data Collection Completed: June 22, 2007 Volume: 2,042,146 cubic yards Lake Elevation: June 6, 2007: 96.61 ft Acreage: 79 acres Depth Range: 0-34 ft ± 08435 701,740Feet

8_007_00 6_00 8_00 9_00 16_00 21_00 7_00 7_00 23_00 11_00 17_00 4_00 9_00 22_00 15_0024_00

18_00 14_00 21_00 13_00 22_00 16_00 8_00

21_00 14_00

20_00

9_00 10_00 12_00 16_00 11_00 21_00 13_00 11_00 14_00 13_00

17_00

20_00

18_00 19_00

21_00

6_00 19_00

18_00 19_00 11_00 20_00 18_00

9_00 12_00 14_00 16_00 15_00 13_00 16_00 20_00

18_00 19_00 7_00

24_00 16_00 13_00 19_00 21_00 5_00 25_00 17_00 21_00 21_00 25_00 18_00 21_00 15_00 17_00 21_00 17_00 21_00 23_00 20_00 21_00 16_00 23_00 9_00 1 15_00 16_00 16_00 0

14_00 26_00 8_00 9_00 12_00 25_00 27_00 10_0 6_00 22_00

7_00 5_00 22_00 5_00 19_00 22_00 17_00

20_00

17_00 16_00 23_00 6_00 8_00 6_00 16_ 21_00 7_00 00 18_00 18_00 18_00 8_00 22_00 1 5_00 9_00

6_00 20_00 17_00 5_00 6_00 7_00

Contour Depth (ft)

3_00 14_00 26_00 4_00 16_00 28_00 6_00 18_00 30_00 8_00 20_00 32_00 10_00 22_00 34_00 April 2005 Aerial 12_00 24_00 Lake Catherine Bathymetric Contours Data collection completed: March 29, 2006 Volume: 3,219,342 cubic yards Acreage: 91 acres Depth range: 0-31 ft 0 325 650 1,300 Feet ± 5_00 6_00 10_00 10_00 3_00 28_00 22_00 25_00 9_00 12_00 17_00 18_00 30_00 29_00 2 23_00

4_00 16_00 8_00

17_00 15_00 26_00 27_00 5_00 4_00 21_00 9_00 6_00 8_00

13_00 10_00

4_00 3_00

13_00 4_00 11_00 5_00 4_00 5_00 10_00 1_00 12_00 9_00 8_00 15_00 10_00 11_00 12_00 4_00 4_00 9_00 17_00 17_00 21_00 20_00

16_00 2_00

12_00 20_00 26_00 3_00 10_00 18_00

8_00

3_00 20_00 13_00 14_00 20_00 24_00 5_00 11_00 22_00 10_00 15_00

4_00 11_00 16_00

10_00 19_00 16_00 15_00 11_00 8_00 12_00 19_00 1_00 16_00 9_00 15_00 14_00 3_00 13_00 6_00

2_00 13_00 11_00 7_00 3_00

9_00 2_00 4_00 3_00 20_00 3_00

20_00 5_00 1_00 7_00 14_00 19_00 _00 5 20_00 18_00 15_00

3_00 22_00 3_00

23_00

21_00

20_00 5_00 3_00 17_00 9_00 3_00 8_00 4_00 6_00 3_00

_00 5_00 4 1 _00 1 9 1_00 6_00 16_00 2_00 8_00 3_00 3_00 2_00

19_00 3_00 4_00 1_00

3_00

4_00

9_00 3_00 15_00 5_00 21_00 11_00 3_00 17_00 4_00 13_00 19_00 4_00 18_00 5_00 10_00

16_00 23_00 14_00 6_00 20_00 6_00

2_00

4_00 22_00

7_00 7_00

4_00 12_00

1_00

3_00

5_00 Contour Depths (ft) 5_00 0 4_0 9_00 1_0

0 2_00 00 10_00 22_00 10_ 1_00 9_00 _00 2 2_00 12_00 24_00 2_00 4_00 14_00 26_00 6_00 16_00 28_00 8_00 18_00 30_00 20_00 31_00 April 2005 Aerial Lake Crescent Bathymetric Contours Data Collection Completed: June 6, 2007 Volume: 3,918,661 cubic yards Lake Elevation: June 6, 2007: 101.41 ft Acreage: 175 acres 4_00 Depth Range: 0-32 ft 6_00 ± 4_00 23_00 0 550 1,100 2,200 Feet 3_00 18_00 24_0028_00 5_00 23_00

27_0

6_00 25_00 0

0 23_00 2_00

27_0 20_00 22_00

23_00

2_00 3_00 23_00

4_00

19_00 12_00 22_00 3_00 2_00 22_00 22_00 22_00 23_00

5_00

4_00 8_00 21_00

2_00

23_00 3_00

20_00

2_00 16_00

2_00 13_00 4_00 5_00 17_00

15_00 21_00 2_00 15_00 14_00 _00 2 20_00 21_00 4_00 19_00

5_00 14_00 23_00 10_00 1_00 21_00 5_00 3_00 4_00 24_00 25_00 3_00 2_00 7_00 4_00 6_00 8_00 7_00 4_00 4_00 10_00 3_00 23_00 23_00 3_00 22_00 17_00 19_00 22_00 3_00

3_00

2_00 25_00 20_00 22_00 20_00 _00 15_00 7 2_00 23_ 26_00 00 2_00 24_0 14_00 0 3_00 2_00 14_00 13_00 21_00 23_00 11_00 14_00 2_00 9_00 18_00 19_00 5_00 9_00 14_00 2_00 15_00 13_00 6_00 5_00 10_00 7_00 3_00

5_00 15_00 2_00 18_00 3_00 20_00 0 1_00 8_00 14_00 3_00 3_0 16_00 2_00

2_00 13_00 6_00 5_00 2_00 3_00 11_00 9_00 2_00 4_00 2_00 2_00 3_00 3_00 2_00

Contour Depths (ft)

1_00 12_00 24_00 2_00 14_00 26_00 4_00 16_00 28_00 6_00 18_00 30_00 8_00 20_00 32_00 10_00 22_00 April 2005 Aerial Lake Ellenor Bathymetric Contours Data Collection Completed: April 5, 2006 Volume: 2,027,980 cubic yards Elevation April 7, 2006: 94.49 ft. Acreage: 113 acres Depth Range: 0-28 ft. ± 0 300 600 1,200 Feet

4_00 5_00 5_00 6_00 6_00 4_00 3_00 7_00 7_00 4_00 8_00 9_00 7_00

4_00 9_00 12_00 4_00 14_00 4_00 21_00

21_00 21_00 22_00

23_00 23_00 3_00

24_00

4_00 25_00

15_00 26_00 20_00 26_00 27_00

12_00 19_00 28_00 22_00 30_00 4_00

31_00 11_00 3_00 3_00 32_00

6_00 29_00 23_00 23_00 3_00 5_00 32_00 3_00 27_00 22_00 18_00

4_00 26_00 16_00 2_00 17_00 19_00

4_00

2_00

4_00 13_00

10_00 8_00 9_00 3_00 5_00 8_00 8_00

7_00 7_00 6_00 4_00 5_00 4_00 5_00 5_00 4_00

Contour Depths (ft)

22_00 12_00 2_00 24_00 4_00 14_00 26_00 6_00 16_00 28_00 8_00 18_00 30_00 10_00 20_00 32_00 April 2005 Aerial Lake Holden Bathymetric Contours Data collection completed: December 29, 2005 Acreage: 262 acres Depth range 0-36 ft

0 400 800 1,600 Feet

± 6_00 4_00 18_00 2_00 6_00 6_00 5_00 17_00

4_00 19_00

5_00

9_00 17_00 17_00 16_00 17_00

6_00 17_00

5_00 18_00 15_00 17_00 4_00 5_00

5_00 12_00 8_00 6_00

13_00 8_00 2_00

7_00 10_00 3_00

5_00 7_00 18_00 6_00

16_00 9_00 14_00 10_00

11_00

19_00 4_00 7_00

00 1_00

_00 2_00

17_ 8_00 4 4_00 2_00

10_00

4_00

20_00 18_00 3_00 5_00 21_00 15_00 7_00 22_00 7_00

3_00 10_00 3_00 19_00 1 1_00 1_00 23_00 17_00 5_00 6_00

23_00

14_00

3_00

11_00

5_00

12_00 17_00 8_00

4_00 11_00

4_00 15_00

11_00 27_00 5_00 8_00 4_00 25_00 5_00

24_00 16_00 3_00 5_00 9_00 21_00 20_00 9_00 22_00

23_00 18_00

13_00 21_00 4_00 6_00 21_00 19_00

26_00 11_00 20_00 27_00 _00

1 7 8_00 8_00 11_009_00 5_00 5_00 6_00 6_00 21_00 20_00 6_00 8_00 5_00 16_00

12_00 6_00

25_00 19_00 20_00 0_00 30_00 10_00 1

18_00 19_00 29_00 25_00 5_00 21_00 17_00

23_00 8_00 6_00 7_00 19_00 6_00 11_00 24_00 22_00 3_00 28_00 14_00 16_00 5_00 17_00 2_00 7_00 15_00 13_00 6_00

11_00

9_00 13_00 10_00 5_00 5_00

6_00 17_009_00

16_00 7_00 5_00 9_00 8_00 11_00 4 4_00 _00 15_00 7_00 10_00 12_00 16_00 6_00

22_00 21_00 7_00

12_00

17_00

5_00 5_00

18_00 2_00 1_00 3_00 Contour Depths (ft) 24_00 1_00 12_00 26_00 2_00 14_00 28_00 4_00 16_00 30_00 6_00 18_00 32_00 8_00 20_00 34_00 10_00 22_00 36_00 April 2005 Aerial Lake Jessamine Bathymetric Contours Data Collection Completed: May 25, 2006 Volume: 5,437,399 cubic yards 6_00 Lake Elevation: May 2, 2006: 90.59 ft 7_00 6_00 6_00 Acreage: 293 acres 11_0

0 7_00 Depth Range: 0-36ft 7_00 3_00 7_00 4_00 ± 4_00 12_00 1 6_00 10_0

3_00 8_00 3_00 0 500 1,000 2,000 Feet 15_00 0 15_00

5_00 10_00

1 2 _00

16_00

16_00 00 14_00

9_00 8_00 7_00

8_00 11_ 2_00 14_00 1_00

13_00

15_00

9_00

13_00 6_00 11_00

13_00 3_00 2_00 1_00 5_00 2_00 1_00 5_00 26_00 5_00 2_00 3_00 4_00 18_00 3_00 1_00 28_00 2_00 6_00 24_00

3_00

4_00 4_00 2

23_00

25_0 19_00

4_00 3_00 3_00 23_00 2_00

0 3_00 20_00

10_00 8_00 27_00 22_00 2_00 17_00 15_00

3_00 _00 15_00

4_00 3 23_00

12_00

20_00 _00 18_00 18_00 9_00

26_00 20_00 11

9_00

14_00 10_00 4_00 21_00

20_00 24_00

30_00 3_00

20_00 26_00 25_00 17_00 18_00 22_00 4_00 19_00 4_00 31_00 27_00 13_00 16_00 24_00 23_00

21_00 25_00 7_00 6_00 26_00

22_00

16_00 25_00 30_00 20_00 11_00

23_00 13_00

1 7_00 21_00 10_00 24_00 5_00

9_00 6_00 8_00 5_00 22_00 13_00

24_00 21_00 6_00 26_00 24_00 23_00 3_00 21_00

29_00 10_00 4_00 2 17_00 13_00 5_00 10_005_00 19_00 27_00

16_00

22_00 9_00 5_00

4_00

10_0

7_00

6_00

13_00

13_00 9_00

8_00

16_00

14_00

10_00

7_00

9_00

8_00

_00 3_00 7_00 3 2_00 5_00 3_00 7_00

5_00 5_00 Contour Depth (ft) 2_00

9_00 3_00 7_00 7_00 3_00 3_00 3_00 4_00 15_0 1_00 3_00 3_00 3_00

7_00 3_00 11_00 19_000 20_00 3_00 16_00 17_00 10_00 8_00

3_00 6_00 2_00

12_00 4_00 22_00 3_00 13_00 19_00 14_00 3_00 18_00 15_00 4_00

12_00 4_00 10_00 9_00 3_00

12_0 13_00 24_00 11_00 3_00 4_00 2_00 4_00 14_00 0 1_00 6_00 12_00 8_00

9_00 16_00 6_00 8_00 26_00 3_00 13_00 3_00 1_00 15_00 2_00 5_00 2_00 8_00

7_00 0

17_00 9_0 2_00 5_00 2_00 6_00 28_00 4_00

5_00 _00 15_00 3 13_00 10_00 12_00 14_00 17_0 8_00

3_00 30_00 8_00 3_00 19_00 1

0 4_00

20_00 12_00

4_00 16_0 1

3_00 00 3_00 _ 00 32_00 5 2 0 3_00 4_00 3_00 _00 9_0 0_00 3_

3_00 3_00 1 14_00 0 34_00 _00 3_00 2 16_00 36_00 18_00

April 2005 Aerial Lake June Bathymetric Contours ±

2_00 3_ 00 2_00 4_00

4_001_00

3_00 8_00

9_00 2_00 7_00 3_00 7_00

8_00

7_00

6_00 4_00 4_00 5_00 5_00

1_00 1_00 1_00 2_00 3_00

Contour Depths (ft) 1_00 5_00 2_00 6_00 3_00 7_00 4_00 8_00 9_00 Lake Killarney Bathymetric Contours Data Collection Completed: August 7, 2006 Volume: 5,167,371 cubic yards Acreage: 236 acres Depth Range: 0-32 ft. 01500 ,0002,000Feet ±

3_00

5_00 1_00 3_00 5_00 9_00 5_00 4_00 11_00

2_00 6_00 12_00 5_00 4_00 7_00 18_00 2_00 15_00

13_00 4_00 10_00 24_00 6_00 19_00 4_00 17_00 7_00 10_00 3_00 5_00 6_00 26_00 17_00 24_00 25_00 00 4_00 5_00 9_00 22_00 25_ 28_00 23_00 16_00 1_00 6_00 1 4_00 21_00 9_00 2_00 22_00 1 3_00 5_00 7_00 2 5_00 7_00 24_00 6_00 18_00 4_00 3_00 3_00 7_00 5_00 5_00 3_00 25_00 4_00 20_00 23_00 20_00 21_00 2_00 3_00 14_00 10_00 7_00 9_00 5_00 12_00 3_00 8_00 6_00 6_00 _00 13_00 4_00 7_00 8_00 5 13_00 2_00 27_00 5_00 11_00 00 4_00 00 18_00 3_00 16_ 9_00 20_ 18_00 19_00 5_00 8_00 24_00 10_00 7_00 15_00 3_00 4_00 12_00 9_00 15_00 6_00 23_00

4_00 22_00 3_00 20_00 7_00 4_00 6_00 25_00 6_00 21_00 21_00 10_00 23_00 2 5_00 5_00 2_00 14_00 5_00 27_00 7_00 4_00 26_00 6_00 16_00 25_00 5_00 6_00 24_00 1 18_00 8_00 2_00 15_00 7_00 6_00 22_00 23_00 17 11_00 _00 6_00 17_00 22_00 7_00 12_00 9_00 24_00 8_00 6_00 4_00 16_00

6_00 2_00 13_00 25_00 22_00 24_00 4_00 26_00 5_00 25_00 5_00 15_00 24_00 19_00 5_00 8_00 20_00 7_00 14_00 19_00 6_00 4_00 3_00 5_00 3_00 13_00 4_00 10_00 9_00 11_00

Contour Depths (ft)

1_00 12_00 24_00 2_00 14_00 26_00 4_00 16_00 28_00 6_00 18_00 30_00 8_00 20_00 32_00 22_00 April 2005 Aerial 10_00 Lake Lawne Bathymetric Contours Final Data Collected: January 11, 2007 Acreage: 155 acres Volume: 1,380,001 cubic yards Depth Range:0-25 ft. Lake Elevation: December 5, 2006: 87.22 ft. 0 325 650 1,300 Feet ±

3_00 1_00 2_00 4_00 9_00 5_00 10_00 2_00

2_00 6_00 5_00 3_00 3_00

5_00 3_00

_00

5_00 6_00 _00 15_00

4_00 11 13_00

6_00

7_00

4_00 6_00 6_00 3_00

10_00

6_00 7_00 12_00

2_00 10_00

5_00 6_00

3_00

9_00

5_00 7_00 3_00

2_00

2_00 3_00

2_00 3_00 3_00 6_00 13_00 4_00 2_00 5_00

11_00 6_00 12_00

6_00 12_00

11_00 3_00 6_00 9_00 6_00 6_00 6_00 10_00 7_00 2_00 11_00 7_00

9_00 6_00 12_009_00 8_00 7_00 6_00 5_00 6_00 3_00 3_00 4_00 9_00 6_00 5_00 6_00 3_00 3_00

6_00

2_00 5_00

4_00 3_00 13_00 3_00

10_00 4_00 8_00

18_00 15_00 7_00 12_00

3_00 11_00

16_00

4_00 11_00 15_00 9_00 14_00 16_00 4_00 9_00 19_00 3_00 16_00 18_00 22_00 8_00 17_00 22_00 11_00 17_00 16_00 7_00 7_00

19_00 6_00 2_00

18_00

12_00 1_00

22_00

20_00

5_00

11_00

21_00 4_00 3_00

22_00 22_00 12_00

2_00 15_00

4_00 23_00

3_00 5_00 23_00 Contour Depths (ft) 9_00

19_00

13_00 24_00 1_00 14_00 4_00 3_00 9_00 18_00 10_00 11_00 12_00 11_0 0 2_00 00 16_00 3_ 12_00 6_0 10_00 0 4_00 11_00 10_00 18_00 00 8_00 8_ 4_00 8_00 9_ 4_0 0 0 6_00 20_00 12_00 0 12_0 5_00 _00 5_ 4_ 7 00 0 14_00 14_00 13_00 00 3_00 3_00 11 0 _00 0 0 8_00 22_00 _ _0 3_00 2_ 12 8 1 00 12 _0 10_00 9_00 9 5_ 0 _00 _00 10_00 24_00 00 1 12 4_00 1_0 0 7_00 5_00 3_0 4_ 0 00 25_00 3_0 2_00 12_00 0 1 1_0 4_00 April 2005 Aerial 0 Little Fairview Bathymetric Contours Data Collected: August 7, 2006 Volume: 1,511,937 cubic yards Elevation June 30, 2006: 88.57 ft Acreage: 85 acres Depth Range: 0-44 ft ± 0 300 600 1,200 Feet

2_00 1_00 1_00 1_00 1_00 4_00 3_00 5_00 9_00 0 10_00 2_00 12_00 13_00 2_0 15_00 14_00 18_00 6_00 19_00 1_00 20_00 22_00

21_00

11_00 3_00

1_00 24_00 5_00

4_00 26_00

3_00 4_00 2_00 21_00 8_00 20_00 23_00 26_00 29_00 8_00 2_00 21_00 17_00 5_00 3_00 1_00 27_00 19_00 41_00 7_00 16_00 3_00

15_00 25_00 15_00 16_00 2_00 17_00 40_00 36_00 3_00 9_00 43_00 35_00 28_00 30_00 42_00 37_00 9_00 8_00 8_00 11_00 38_00 8_00 7_00 1_00 11_00 7_00 2_00 39_00 3 7_00 34_00 5_00 24_00 21_005_00 15_00 5_00 23_00 2_00 4_00 4_00 5_00 6_00 1_00 4_00 3_00

4_00

2_00 4_00 4_00 2_00 2_00 10_00 3_00 5_00 3_00

2_00 11_00 16_00

13_00 1

0_00 18_00 9_00 1_00 13_00

8_00 6_00 10_00 _00 3 3_00 1_00 12_00 8_00 00 4_00 3_00 2_ 2_00 1_00 1_00 4_00 2_00

1_002_00

Contour Depths (ft)

1_00 12_00 24_00 36_00 2_00 14_00 26_00 38_00 4_00 16_00 28_00 40_00 6_00 18_00 30_00 42_00 8_00 20_00 32_00 44_00 22_00 April 2005 Aerial 10_00 34_00 Lake Mann Bathymetric Contours Data Collection Completed: June 7, 2006 Volume: 3,634,199 cubic yards Elevation June 5, 2006: 90.14 ft. Acreage: 255 acres Depth range: 0-23 ft. 0 450 900 1,800 Feet ± 3_00 5_00

2_00 1_00 10_00 2_00 5_00 3_00 4_00

1_00 2_00 9_00 6_00 3_00 3_00 4_00 1_00

10_00 8_00 7_00 4_00 5_00 4_00 5_00 12_00 8_00 7_00 7_00 3_00 7_00 5_00 4_00 4_00 10_00 9_00 8_00 11_00 7_00 13_00 13_00 11_00

12_00 17_00 4_00 13_00 11_00

9_00 14_00 10_00 15_00 10_00 10_00 4_00 11_00 6_00 12_00

12_00 9_00 5_00 12_00 9_00 6_00 10_00

6_00 9_00 11_00 6_00 11_00 10_00 19_00 7_00 5_00 20_00 8_00

10_00 22_00 15_00

8_00

4_00

13_00 9_00 16_00 6_00 17_00 3_00 18_00

18_00 14_00 7_00 19_00 2_00 17_00 1_00 16_00 4_00 8_00 5_00 4_00 9_00 12_00 1 7_00 17_00 1 5_00 5_00 14_00

5_00

11_00 4_00 15_00

15_00 4_00

7_00

6_00 18_00 17_00 2_00 7_00 16_00

16_00 19_00 11_00 19_00 18_00 15_00 19_00 3_00 2_00 10_00 13_00

3_00 17_00 10_00

14_00 8_00

9_00

4_00 11_00 6_00 2_00

7_00

3_00 5_00 3_00 2_00 4_00 5_00 2_00 6_00 3_00 4_00 2_00 4_00

3_00 6_00 4_00 5_00 14_00 3_00 8_00 2_00 3_00 2_00 4_00 2_00

Contour Depths (ft) 1_00 10_00 18_00 2_00 12_00 20_00 4_00 14_00 22_00 6_00 16_00 23_00 April 2005 Aerial 8_00 Lake Marsha Bathymetric Contours Data Collected: October 12, 2006 Volume: 2,728,392 cubic yards Lake Elevation October 5, 2006: 126.83 ft. Acreage: 86 acres Depth Range: 1-43 ft. ± 0 400 800 1,600 Feet

3_00

4_00

3_00 3_00 2_00

1_00 2_00 9_00 3_00 1_00 2_00

3_00 8_00 2_00 1_00 7_00 4_00 3_00 11_00 19_00 13_00 3_00 2_00 8_00 3_00

5_00 17_00 1_00 13_00 9_00 5_00 4_00 26_00 15_00

16_00 1_00 9_00 31_00 1_00 38_00 26_00 25_00 3_00 9_00 4_00 13_00 6_00 3_00 31_00 28_00 18_00 4_00 13_00

16_00 _00 7_00 21_00 12_00 2 5_00 13_00

8_00 37_00 5_ 38_00 36_00 14_00 1 00 38_00 9_00 5_00 3_00 24_00

13_00 10_00 15_00 4_00 9_00 23_00 3_00 4_00 15_00 3_00 12_00 38_00 15_00 2_00 3_00 27_00 7_00 22_00 3_00 18_00 15_00 18_00 17_00

37_00 20_00 7_00 31_00 1_00 17_00 4_00 00 8_00 16_00 9_ 4_00 10_00 34_00 7_00 29_00 5_00 34_00 33_00 11_00

5_00 36_00 22_00 35_00 24_00 38_00 42_00 20_00 38_00 37_00 43_00 4_00 3_00 25_00

2 32_00 7_00 3_00 39_00 31_00 33_00 39_00 32_00 41_00 27_00 5_00 40_00 33_00 35_00 37_00 24_00 4_0 29_00 32_00 30_00 27_00 28_00 22_00 2_00

0 25_00 17_00 19_00 28_00 29_00 0 17_00 18_0 5_00 15_00 1_00 29_00 18_00 18_00 20_00 4_00 12_00 3_00 8_00 10_00 4_00 1_00 5_00 3_00 3_00 5_00 3_00 2_00

Contour Depths (ft) 1_00 2_00 16_00 30_00 4_00 18_00 32_00 6_00 20_00 34_00 8_00 22_00 36_00 10_00 24_00 38_00 12_00 26_00 40_00 14_00 April 2005 Aerial 28_00 42_00 Mary Jane Bathymetric Contours Data Collection Completed: August 12, 2006 Lake Elevation July 5, 2006: 59.91 ft Volume: 9,114,191 cubic yards Acreage: 1160 acres 1_00 Depth: 0-25 ft. 4_00 3_00 0 900 1,800 3,600 Feet ± 3_00 5_00 3_00 5_00

1_00 1_00 5_00 9_00 2_00 3_00 11_00 7_00 3_00 2_00 6_00 1_00 2_00 7_00 1_00 4_00 8_00 6_00 8_00 1_00 7_00 8_00 6_00 8_00 12_00 8_00 2_00 8_00 7_00 8_00 3_00 8_00 15_00 2_00 5_00 8_00 8_00 8_00

2_00 8_00 3_00 8_00 4_00 8_00 8_00 8_00 7_00 7_00 3_00 8_00 3_00 8_00 8_00 7_00 3_00

4_00 2_00 4_00 14_00 4_00 8_00 2_00 1_00 8_00

3_00 8_00 7_00 13_00 3_00 3_00 6_00 3_00 8_00 5_00 8_00 2_00 5_00 7_00 3_00 7_00 8_00 6_00 7_00 7_00 8_00 7_00 12_00 2_00 7_00 4_00 3_00 3_00 7_00 6_00 7_00 8_00 4_00 7_00 4_00 7_00 7_00 3_00 6_00 7_00 9_00 1_00 9_00

9_00 7_00 4_00

3_00 9_00 3_00 5_00 9_00 9_00 10_00 4_00 2_00 4_00 3_00 9_00 5_00

6_00

5_00 7_00 8_00

3_00 6_00

4_00 8_00 8_00 8_00 8_00 1_00 9_00 8_00 3_00

3_00 8_00 8_00 4_00 3_00 5_00

5_00 2_00 7_00 4_00 5_00 Contour Depths (ft.) 2_00 3_00 3_00

2_00 1_00 14_00 4_00 7_00 2_00 16_00 4_00 4_00 18_00 6_00 20_00 4_00 2_ 00 8_00 22_00

1_00 2_00 10_00 24_00

April 2005 Aerial 6_00 12_00 25_00 Lake Mary Jess Bathymetric Contours Data collection completed: July 8, 2005 Volume: 1,014,447 cubic yards Acreage: 48 acres Depth range: 0-28 ft 0 170 340 680 Feet ±

2_00 2_00 2_00 2_00 3_00 3_00 3_00 3_00 2_00 _00 4_00 0 2_00 6_00 3 17_00 19_00 5_00 1_00 3_0 7_00 4_00 8_00 10_00 9_00 4_00 10_00 19_00 4_00 13_00 0 3_00 12_00 9_00 10_0 2_00 10_00 7_00 20_00 16_00 14_00 15_00 12_00 14_00 13_00 2_00 2_00 20_00 15_00 18_00 22_00 13_00 3_00 3_00 21_00 16_00 26_00 8_00 17_00 17_00 23_00 22_00 27_00 4_00 12_00 22_00 21_00 24_00 2_00 12_00 8_00 9_00 2_00 20_00 25_00 25_00

11_00 25_00 28_00 5_00 24_00 11_00 18_00 24_00 8_00 24_00 25_00 11_00 8_00 23_00 10_00 12_00 8_00 3_00 9_00 20_00 22_00 14_00 23_00 15_00 22_00 7_00 3_00 23_00 2_00 15_00 24_00 23_00 18_00 11_00 9_00 22_00 17_00 21_00 16_00 24_00 17_00 25_00 6_00 2_00 15_00 2_00 6_00 4_00 15_00 26_00 16_00 2_00 6_00 4_00

3_00 12_00 22_00 24_00 21_00 3_00 0 19_00 15_00 1_0 8_00 26_00 5_00 20_00 27_00 25_00 16_00 11_00 9_00 7_00 28_00 21_00 8_00 2_00 3_00 12_00

13_00 19_00 24_00 28_00 26_00 23_00 12_00 8_00 4_00 14_00 11_00 9_00 11_00 21_00 19_00 17_00 24_00 9_00 20_00 10_00 15_00 4_00 7_00 13_00 12_00 3_00 8_00 7_00 9_00 13_00 9_00 3_00 3_00 8_00 10_00 6_00 2_00

2_00 6_00 3_00 3_00 3_00

Contour Depths (ft)

1_00 14_00 16_00 2_00 18_00 4_00 20_00 6_00 22_00 8_00 24_00 10_00 26_00 12_00 28_00 April 2005 Aerial Lake Pineloch Bathymetric Contours Data collection completed: 01/13/06 Volume: 1,433,198 cubic yards Acreage: 61 acres Depth range: 0-34 ft

04225 50900Feet ±

4_00 4_00 2_00 4_00 14_00 8_00 6_00 4_00 6_00 6_00 8_00 6_00 6_00 12_00 8_00 16_00 6_0012_00 8_00 4_00

4_00 20_00 6_00 4_00 18_00 4_00

4_00 24_00

6_00 8_00 18_00 24_00 6_00 24_00 24_00

24_00 4_00 4_006_00

24_00 24_00 22_00 2_00 14_00 4_00 20_00 26_00 22_00 4_00 4_00 20_00 4_00 16_00 18_00 6_00 14_00 2_00 2_00 14_00 12_00 12_00 6_00 10_00 4_00 8_00 18_00

20_00 16_00 2_00 10_00 2_00 4_00 12_00 26_00 28_00 4_00 6_00 2_00 4_00 30_00

4_00 26_00 6_00 24_00 6_00 4_00 2_00 4_00 2_00 4_00 34_00 2 4_00 _00 2_00 24_00 8_00 22_00 16_00 2_00 32_00 6_00 4_00 26_00

2_00 8_00 2_00 10_00 4_00

Contour Depths (ft)

2_00 18_00 4_00 20_00 6_00 22_00 8_00 24_00 10_00 26_00 12_00 28_00 14_00 30_00 16_00 32_00 34_00 April 2005 Aerial Lake Robinson Bathymetric Contours Data collected: March 22, 2006 Volume: 1,377,869 cubic yards Acreage: 63 acres Depth range: 0-28 ft 0 225 450 900 Feet±

10_00 9_00 14_00 7_00 2_00 6_00 13_00 11_00 12_00 18_00 5_00 10_00 23_00 15_00

11_00

9_00 1_00 4_00 8_00 12_00 23_00 6_00 9 _00 7_00

13_00 16_00

24_00 12_00 24_00 25_00

10_00

26_00 7_00 16_00 15_00 11_00 19_00 13_00 17_0015_00 21_00 16_00 23_00 11_00 22_00 20_00 17_00 14_00 3_00 12_00 10_00 8_00

7_00 8_00 5_00 3_00 9_00 7_00 6_00 12_00 12_00 16_00 8_00

7_00 21_00

23_00 18_00

17_00

25_00 26_00 6_00

7_00

14_00

24_00 5 23_00 28_00 _00 27_00 22_00 7_00 20_00 19_00 _00 15_00 6 6_00 13_00

4_00 11_00 4_00 10_00

5_00 7_00 4_00

Contour Depths (ft)

1_00 10_00 20_00 2_00 12_00 22_00 4_00 14_00 24_00 6_00 16_00 26_00 April 2005 Aerial 8_00 18_00 28_00 Lake Sawyer Bathymetric Contours Data Collected: April 4, 2006 Volume: 2,254,189 cubic yards Acreage: 94 acres Depth Range: 0-34 ft 0 300 600 1,200 Feet ±

7_00 5_00 16_00 8_00 4_00 17_00 14_00 2_00 7_00 14_00 18_00 22_00 23_00 7_00 7_00 3_00 14_00 2_00 24_00 26_00 11_00 21_00

7_00

20_00

9_00

6_00 4_00 25_00 15_00 12_00 3_00

19_00 17_00 8_00 17_00 7_00 1_00 16_00

15_00 7_00 7_00 20_00 21_00 8_00 18_00 7_00 23_00 21_00 17_00 15_00 27_00 14_00 2 0_00 17_00 26_00

24_00 14_00 23_00 10_00 16_00 8_00

22_00

28_00 17_00 8_00 19_00 3_00 4_00 8_00

5_00 6_00 24_00 6_00 13_00 21_00 9_00 27_00 25_00 5_00 28_00 25_00 29_00 4_00 27_00 7_00 18_00

22_00 30_00 25_00 26_00 26_00

14_00 8_00 15_00

27_00 25_00 7_00 21_00 20_00 19_00

8_00 27_00 5_00 3_00 5_00 5_00 23_00 7_00 4_00 7_00 6_00

7_00 7_00

3_00

_0 16_00 23_00 8 19_00 22_00 17_00

18_00 26_00 24_00 25_

00 27_00

8_00 15_00 21_00 8_00 6_00 8_00 6_00 6_00 2_00

Contour Depths (ft)

1_00 12_00 24_00 2_00 14_00 26_00 4_00 16_00 28_00 6_00 18_00 30_00 8_00 20_00 32_00 April 2005 Aerial 10_00 22_00 34_00 STREAM DATA PAGES BIG ECON ABOVE CONFLUENCE OF LITTLE ECON

Basin: Big Econ

LAT: 28° 39' 15" LONG: 81° 10' 12"

Nitrogen and Phosphorus BEC Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.0 Annual Average TP (mg/L): 0.06 Annual Average Chlorophyll a (ug/L): 0.7 Annual Average (Fecal) Bacteria (CFU/100mL): 212 Annual Average DO (mg/L): 6.5 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 10 M Canopy Cover: Moderately Shaded Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 257 BIG ECON ABOVE CONFLUENCE OF

Legend Big Econ Above Confluence Of

BEC Sample Location Little Econ Other Sample Locations BEC Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG ECON AT ALTMAN RANCH POWERLINES

Basin: Big Econ

LAT: 28° 30' 10" LONG: 81° 08' 01"

Nitrogen and Phosphorus BEG Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.8 Annual Average TP (mg/L): 0.05 Annual Average Chlorophyll a (ug/L): 0.8 Annual Average (Fecal) Bacteria (CFU/100mL): 753 Annual Average DO (mg/L): 5.7 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: > 18 M Canopy Cover: Lightly Shaded Exotic Species: L Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: 84 Overall Health: Good Fecal Coliform Total Coliform Diversity Index: 4.7

Page 259 BIG ECON AT ALTMAN RANCH

Legend Big Econ At Altman Ranch

BEG Sample Location Powerlines Other Sample Locations BEG Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG ECON AT DISCHARGE FROM ALAFAYA WETLANDS

Basin: Big Econ

LAT: 28° 30' 39" LONG: 81° 10' 32"

Nitrogen and Phosphorus BEII Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.1 Annual Average TP (mg/L): 0.13 Annual Average Chlorophyll a (ug/L): 1.9 Annual Average (Fecal) Bacteria (CFU/100mL): 413 Annual Average DO (mg/L): 6.9 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 10 M Canopy Cover: Lightly Shaded Exotic Species: Yes Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 261 BIG ECON AT DISCHARGE FROM

Legend Big Econ At Discharge From

BEII Sample Location Alafaya Wetlands Other Sample Locations BEII Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG ECON AT HAL SCOTT

Basin: Big Econ

LAT: 28° 28' 54" LONG: 81° 07' 11"

Nitrogen and Phosphorus BEHS Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.1 Annual Average TP (mg/L): 0.05 Annual Average Chlorophyll a (ug/L): 1.2 Annual Average (Fecal) Bacteria (CFU/100mL): 1,038 Annual Average DO (mg/L): 6.0 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: > 18 M Canopy Cover: Moderately Shaded Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 263 BIG ECON AT HAL SCOTT

Legend

BEHS Sample Location Big Econ At Hal Scott Other Sample Locations BEHS Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG ECON AT HWY. 419

Basin: Big Econ

LAT: 28° 39' 20" LONG: 81° 10' 13"

Nitrogen and Phosphorus BED Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.8 Annual Average TP (mg/L): 0.07 Annual Average Chlorophyll a (ug/L): 0.9 Annual Average (Fecal) Bacteria (CFU/100mL): 98 Annual Average DO (mg/L): 7.1 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: > 18 M Canopy Cover: Open Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: 2.3** ** Data collected in 1999 Page 265 BIG ECON AT HWY. 419

Legend

BED Sample Location Big Econ At Hwy. 419 Other Sample Locations BED Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG ECON AT HWY. 420

Basin: Big Econ

LAT: 28° 34' 58" LONG: 81° 10' 01"

Nitrogen and Phosphorus BEB Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.1 Annual Average TP (mg/L): 0.06 Annual Average Chlorophyll a (ug/L): 0.7 Annual Average (Fecal) Bacteria (CFU/100mL): 359 Annual Average DO (mg/L): 6.5 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: > 18 M Canopy Cover: Heavily Shaded Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 267 BIG ECON AT HWY. 420

Legend

BEB Sample Location Big Econ At Hwy. 420 Other Sample Locations BEB Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG ECON AT LONG BRANCH

Basin: Big Econ

LAT: 28° 32' 03" LONG: 81° 07' 07"

Nitrogen and Phosphorus BELB Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.9 Annual Average TP (mg/L): 0.10 Annual Average Chlorophyll a (ug/L): 2.1 Annual Average (Fecal) Bacteria (CFU/100mL): 2,413 Annual Average DO (mg/L): 3.6 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: No Data Canopy Cover: No Data Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 269 BIG ECON AT LONG BRANCH

Legend

BELB Sample Location Big Econ At Long Branch Other Sample Locations BELB Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG ECON AT OLD CHENEY

Basin: Big Econ

LAT: 28° 33' 40" LONG: 81° 08' 57"

Nitrogen and Phosphorus BEF Characteristics N P Average Flow (m/s): 0.14 Annual Average TN (mg/L): 0.9 Annual Average TP (mg/L): 0.06 Annual Average Chlorophyll a (ug/L): 0.9 Annual Average (Fecal) Bacteria (CFU/100mL): 1,685 Annual Average DO (mg/L): 6.5 Maximum Peak Stage (Ft): 3 Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: > 18 M Canopy Cover: No Data Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: 34** Overall Health: Poor Fecal Coliform Total Coliform Diversity Index: 3.9** ** Data collected in 2007 Page 271 BIG ECON AT OLD CHENEY

Legend

BEF Sample Location Big Econ At Old Cheney Other Sample Locations BEF Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG ECON AT REYNOLDS

Basin: Big Econ

LAT: 28° 27' 49" LONG: 81° 06' 51"

Nitrogen and Phosphorus BER Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.3 Annual Average TP (mg/L): 0.11 Annual Average Chlorophyll a (ug/L): 2.2 Annual Average (Fecal) Bacteria (CFU/100mL): 2,495 Annual Average DO (mg/L): 6.4 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 2 BMAP: No Bacteria

Page 273 BIG ECON AT REYNOLDS

Legend

BER Sample Location Big Econ At Reynolds Other Sample Locations BER Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG ECON AT SNOWHILL

Basin: Big Econ

LAT: 28° 40' 40" LONG: 81° 06' 50"

Nitrogen and Phosphorus BEE Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.9 Annual Average TP (mg/L): 0.08 Annual Average Chlorophyll a (ug/L): 1.1 Annual Average (Fecal) Bacteria (CFU/100mL): 87 Annual Average DO (mg/L): 8.1 Maximum Peak Stage (Ft): 25.3 Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 2 BMAP: No Bacteria

Page 275 BIG ECON AT SNOWHILL

Legend

BEE Sample Location Big Econ At Snowhill Other Sample Locations BEE Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG ECON AT TRIBUTARY ON AVALON PROPERTY

Basin: Big Econ

LAT: 28° 30' 13" LONG: 81° 08' 59"

Nitrogen and Phosphorus BEI Characteristics N P Average Flow (m/s): 0.5 Annual Average TN (mg/L): 1.1 Annual Average TP (mg/L): 0.10 Annual Average Chlorophyll a (ug/L): 1.1 Annual Average (Fecal) Bacteria (CFU/100mL): 938 Annual Average DO (mg/L): 7.3 Maximum Peak Stage (Ft): 1 Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: > 18 M Canopy Cover: Moderately Shaded Exotic Species: No Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: 64** Overall Health: Fair Fecal Coliform Total Coliform Diversity Index: 3.1** ** Data collected in 2007 Page 277 BIG ECON AT TRIBUTARY ON AVALON

Legend Big Econ At Tributary On Avalon

BEI Sample Location Property Other Sample Locations BEI Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG WEKIVA AT KATIE LANDING

Basin: Big Wekiva

LAT: 28° 49' 44" LONG: 81° 24' 45"

Nitrogen and Phosphorus BWKL Characteristics N P Average Flow (m/s): 0.19 Annual Average TN (mg/L): 1.2 Annual Average TP (mg/L): 0.14 Annual Average Chlorophyll a (ug/L): 1.7 Annual Average (Fecal) Bacteria (CFU/100mL): 112 Annual Average DO (mg/L): 4.9 Maximum Peak Stage (Ft): 3 Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: Nitrate And Phoshphorus TMDL Group: 2 Bacteria BMAP: 2010

Biological Information Plant Management Riparian Buffer: < 6 M Canopy Cover: Open Exotic Species: N Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: 59** Overall Health: Good Fecal Coliform Total Coliform Diversity Index: 4.2** ** Data collected in 2007 Page 279 BIG WEKIVA AT KATIE LANDING

Legend

BWKL Sample Location Big Wekiva At Katie Landing Other Sample Locations BWKL Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG WEKIVA AT KELLY PARK

Basin: Big Wekiva

LAT: 28° 45' 22" LONG: 81° 29' 55"

Nitrogen and Phosphorus BWKP Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.3 Annual Average TP (mg/L): 0.08 Annual Average Chlorophyll a (ug/L): 0.6 Annual Average (Fecal) Bacteria (CFU/100mL): 93 Annual Average DO (mg/L): 2.7 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: Nitrate And Phoshphorus TMDL Group: 2 Bacteria BMAP: 2010

Biological Information Plant Management Riparian Buffer: 8 M Canopy Cover: Lightly Shaded Exotic Species: OS Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: 41 Overall Health: Poor Fecal Coliform Total Coliform Diversity Index: 3

Page 281 BIG WEKIVA AT KELLY PARK

Legend

BWKP Sample Location Big Wekiva At Kelly Park Other Sample Locations BWKP Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG WEKIVA AT WEKIVA MARINA

Basin: Big Wekiva

LAT: 28° 42' 48" LONG: 81° 26' 48"

Nitrogen and Phosphorus BWB Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.3 Annual Average TP (mg/L): 0.12 Annual Average Chlorophyll a (ug/L): 1.4 Annual Average (Fecal) Bacteria (CFU/100mL): 82 Annual Average DO (mg/L): 4.7 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: Nitrate And Phoshphorus TMDL Group: 2 Bacteria BMAP: 2010

Biological Information Plant Management Riparian Buffer: 10 M Canopy Cover: Lightly Shaded Exotic Species: ABGOPS Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 283 BIG WEKIVA AT WEKIVA MARINA

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BWB Sample Location Big Wekiva At Wekiva Marina Other Sample Locations BWB Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIG WEKIVA AT WEKIVA SPRINGS

Basin: Big Wekiva

LAT: 28° 42' 45" LONG: 81° 27' 32"

Nitrogen and Phosphorus BWD Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.0 Annual Average TP (mg/L): 0.12 Annual Average Chlorophyll a (ug/L): 0.6 Annual Average (Fecal) Bacteria (CFU/100mL): 6 Annual Average DO (mg/L): 1.2 Maximum Peak Stage (Ft): No Data Receiving Body of Water: St Johns River Nitrogen Phosphorus TMDL Impairment: Nitrate And Phoshphorus TMDL Group: 2 Bacteria BMAP: 2010

Biological Information Plant Management Riparian Buffer: < 10 M Canopy Cover: Lightly Shaded Exotic Species: ABOPS Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 285 BIG WEKIVA AT WEKIVA SPRINGS

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BWD Sample Location Big Wekiva At Wekiva Springs Other Sample Locations BWD Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BOGGY CREEK AT SR 527

Basin: Boggy Creek

LAT: 28° 23' 41" LONG: 81° 22' 32"

Nitrogen and Phosphorus BCE Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.0 Annual Average TP (mg/L): 0.10 Annual Average Chlorophyll a (ug/L): 2.0 Annual Average (Fecal) Bacteria (CFU/100mL): 223 Annual Average DO (mg/L): 4.5 Maximum Peak Stage (Ft): No Data Receiving Body of Water: Lake Toho TMDL Impairment: None Nitrogen Phosphorus TMDL Group: 4 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: < 10 M Canopy Cover: Lightly Shaded Exotic Species: No Data Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 289 BOGGY CREEK AT SR 527

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BCE Sample Location Boggy Creek At SR 527 Other Sample Locations BCE Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BOGGY CREEK AT SR 527A

Basin: Boggy Creek

LAT: 28° 23' 29" LONG: 81° 19' 18"

Nitrogen and Phosphorus BCB Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.8 Annual Average TP (mg/L): 0.04 Annual Average Chlorophyll a (ug/L): 3.8 Annual Average (Fecal) Bacteria (CFU/100mL): 153 Annual Average DO (mg/L): 5.1 Maximum Peak Stage (Ft): No Data Receiving Body of Water: Lake Toho TMDL Impairment: None Nitrogen Phosphorus TMDL Group: 4 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 0 M Canopy Cover: Open Exotic Species: No Data Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 287 BOGGY CREEK AT SR 527A

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BCB Sample Location Boggy Creek At SR 527A Other Sample Locations BCB Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BOGGY CREEK AT SR 530

Basin: Boggy Creek

LAT: 28° 20' 53" LONG: 81° 19' 14"

Nitrogen and Phosphorus BCC Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.6 Annual Average TP (mg/L): 0.03 Annual Average Chlorophyll a (ug/L): 1.0 Annual Average (Fecal) Bacteria (CFU/100mL): 373 Annual Average DO (mg/L): 5.8 Maximum Peak Stage (Ft): No Data Receiving Body of Water: Lake Toho TMDL Impairment: None Nitrogen Phosphorus TMDL Group: 4 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 15m Canopy Cover: Moderately Shaded Exotic Species: ABK Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: 65 Overall Health: Fair Fecal Coliform Total Coliform Diversity Index: 4.8

Page 291 BOGGY CREEK AT SR 530

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BCC Sample Location Boggy Creek At SR 530 Other Sample Locations BCC Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BOGGY CREEK AT TRADEPORT

Basin: Boggy Creek

LAT: 28° 27' 17" LONG: 81° 18' 53"

Nitrogen and Phosphorus BCA Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.3 Annual Average TP (mg/L): 0.06 Annual Average Chlorophyll a (ug/L): 30.7 Annual Average (Fecal) Bacteria (CFU/100mL): 108 Annual Average DO (mg/L): 5.7 Maximum Peak Stage (Ft): No Data Receiving Body of Water: Lake Toho TMDL Impairment: None Nitrogen Phosphorus TMDL Group: 4 BMAP: No Bacteria

Page 293 BOGGY CREEK AT TRADEPORT

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BCA Sample Location Boggy Creek At Tradeport Other Sample Locations BCA Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ CYPRESS CREEK AT BAY HILL

Basin: Cypress Creek

LAT: 28° 29' 47" LONG: 81° 20' 54"

Nitrogen and Phosphorus CCB Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 2.1 Annual Average TP (mg/L): 0.11 Annual Average Chlorophyll a (ug/L): 57.3 Annual Average (Fecal) Bacteria (CFU/100mL): 285 Annual Average DO (mg/L): 6.4 Maximum Peak Stage (Ft): No Data Receiving Body of Water: Lake Tibet TMDL Impairment: None Nitrogen Phosphorus TMDL Group: 4 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: No Data Canopy Cover: No Data Exotic Species: No Data Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 295 CYPRESS CREEK AT BAY HILL

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CCB Sample Location Cypress Creek At Bay Hill Other Sample Locations CCB Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ CYPRESS CREEK AT HWY 435

Basin: Cypress Creek

LAT: 28° 23' 26" LONG: 81° 31' 10"

Nitrogen and Phosphorus CCA Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 2.3 Annual Average TP (mg/L): 0.02 Annual Average Chlorophyll a (ug/L): 2.9 Annual Average (Fecal) Bacteria (CFU/100mL): 300 Annual Average DO (mg/L): 4.7 Maximum Peak Stage (Ft): 96.5 Receiving Body of Water: Bonnett Creek Nitrogen Phosphorus TMDL Impairment: None TMDL Group: 4 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: > 18 M Canopy Cover: Moderately Shaded Exotic Species: No Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: 3.9** ** Data collected in 2000 Page 297 CYPRESS CREEK AT HWY 435

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CCA Sample Location Cypress Creek At Hwy 435 Other Sample Locations CCA Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ HOWELL BRANCH AT STATE ROAD 436

Basin: Howell Branch

LAT: 28° 38' 01" LONG: 81° 19' 14"

Nitrogen and Phosphorus HBC Characteristics N P Average Flow (m/s): 0.05 Annual Average TN (mg/L): 0.6 Annual Average TP (mg/L): 0.06 Annual Average Chlorophyll a (ug/L): 9.4 Annual Average (Fecal) Bacteria (CFU/100mL): 1,375 Annual Average DO (mg/L): 5.3 Maximum Peak Stage (Ft): 58.5 Receiving Body of Water: Lake Howell TMDL Impairment: Fecal Coliforms Nitrogen Phosphorus TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 0 M Canopy Cover: Open Exotic Species: BG Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: 34 Overall Health: Poor Fecal Coliform Total Coliform Diversity Index: 3.5

Page 299 HOWELL BRANCH AT STATE ROAD 436

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HBC Sample Location Howell Branch At State Road 436 Other Sample Locations HBC Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT ALAFAYA BRIDGE

Basin: Little Econ

LAT: 28° 37' 12" LONG: 81° 12' 29"

Nitrogen and Phosphorus LEZAF Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.9 Annual Average TP (mg/L): 0.10 Annual Average Chlorophyll a (ug/L): 1.3 Annual Average (Fecal) Bacteria (CFU/100mL): 302 Annual Average DO (mg/L): 6.6 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: < 10 M Canopy Cover: Lightly Shaded Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 301 LITTLE ECON AT ALAFAYA BRIDGE

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LEZAF Sample Location Little Econ At Alafaya Bridge Other Sample Locations LEZAF Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT BERRY DEASE ROAD

Basin: Little Econ

LAT: 28° 31' 30" LONG: 81° 14' 37"

Nitrogen and Phosphorus LET Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.0 Annual Average TP (mg/L): 0.10 Annual Average Chlorophyll a (ug/L): 1.9 Annual Average (Fecal) Bacteria (CFU/100mL): 860 Annual Average DO (mg/L): 5.4 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: > 18 M Canopy Cover: Lightly Shaded Exotic Species: BGON Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: 37** Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: 3.8** ** Data collected in 2006 Page 303 LITTLE ECON AT BERRY DEASE ROAD

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LET Sample Location Little Econ At Berry Dease Road Other Sample Locations LET Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT BLANCHARD PARK DAM

Basin: Little Econ

LAT: 28° 34' 55" LONG: 81° 13' 55"

Nitrogen and Phosphorus LEQ Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.7 Annual Average TP (mg/L): 0.07 Annual Average Chlorophyll a (ug/L): 4.1 Annual Average (Fecal) Bacteria (CFU/100mL): 225 Annual Average DO (mg/L): 7.4 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: < 10 M Canopy Cover: Open Exotic Species: Yes Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 305 LITTLE ECON AT BLANCHARD PARK

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LEQ Sample Location Little Econ At Blanchard Park Dam Other Sample Locations LEQ Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT BRIDGE FROM LEE

Basin: Little Econ

LAT: 28° 29' 30" LONG: 81° 15' 17"

Nitrogen and Phosphorus LEF Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): Annual Average TP (mg/L): Annual Average Chlorophyll a (ug/L): Annual Average (Fecal) Bacteria (CFU/100mL): Annual Average DO (mg/L): Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 0 M Canopy Cover: Lightly Shaded Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: 4.1** ** Data collected in 1999 Page 307 LITTLE ECON AT BRIDGE FROM LEE

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LEF Sample Location Little Econ At Bridge From LEE Other Sample Locations LEF Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT BUCK ROAD

Basin: Little Econ

LAT: 28° 35' 24" LONG: 81° 13' 34"

Nitrogen and Phosphorus LER Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.9 Annual Average TP (mg/L): 0.07 Annual Average Chlorophyll a (ug/L): 1.4 Annual Average (Fecal) Bacteria (CFU/100mL): 253 Annual Average DO (mg/L): 6.8 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: < 10 M Canopy Cover: Open Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 309 LITTLE ECON AT BUCK ROAD

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LER Sample Location Little Econ At Buck Road Other Sample Locations LER Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT CANAL CONFLUENCE

Basin: Little Econ

LAT: 28° 29' 31" LONG: 81° 14' 40"

Nitrogen and Phosphorus LEE Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.0 Annual Average TP (mg/L): 0.11 Annual Average Chlorophyll a (ug/L): 4.7 Annual Average (Fecal) Bacteria (CFU/100mL): 322 Annual Average DO (mg/L): 5.6 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 0 M Canopy Cover: Lightly Shaded Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: 2.5** ** Data collected in 1999 Page 311 LITTLE ECON AT CANAL CONFLUENCE

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LEE Sample Location Little Econ At Canal Confluence Other Sample Locations LEE Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT EAST ORANGE CANAL

Basin: Little Econ

LAT: 28° 29' 30" LONG: 81° 16' 10"

Nitrogen and Phosphorus LEYA Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.9 Annual Average TP (mg/L): 0.21 Annual Average Chlorophyll a (ug/L): 6.5 Annual Average (Fecal) Bacteria (CFU/100mL): 733 Annual Average DO (mg/L): 6.3 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 0 M Canopy Cover: Open Exotic Species: BO Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 313 LITTLE ECON AT EAST ORANGE CANAL

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LEYA Sample Location Little Econ At East Orange Canal Other Sample Locations LEYA Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT EAST ORANGE CANAL #2

Basin: Little Econ

LAT: 28° 29' 43" LONG: 81° 16' 35"

Nitrogen and Phosphorus LEYB Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.9 Annual Average TP (mg/L): 0.19 Annual Average Chlorophyll a (ug/L): 9.7 Annual Average (Fecal) Bacteria (CFU/100mL): 1,273 Annual Average DO (mg/L): 5.8 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Page 315 LITTLE ECON AT EAST ORANGE CANAL

Legend Little Econ At East Orange Canal

LEYB Sample Location #2 Other Sample Locations LEYB Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT ECON TRAIL

Basin: Little Econ

LAT: 28° 34' 17" LONG: 81° 15' 14"

Nitrogen and Phosphorus LEP Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.1 Annual Average TP (mg/L): 0.07 Annual Average Chlorophyll a (ug/L): 6.4 Annual Average (Fecal) Bacteria (CFU/100mL): 1,805 Annual Average DO (mg/L): 5.1 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: < 5 M Canopy Cover: Open Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 317 LITTLE ECON AT ECON TRAIL

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LEP Sample Location Little Econ At Econ Trail Other Sample Locations LEP Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT HARRELL ROAD

Basin: Little Econ

LAT: 28° 34' 26" LONG: 81° 16' 11"

Nitrogen and Phosphorus LEO Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.9 Annual Average TP (mg/L): 0.08 Annual Average Chlorophyll a (ug/L): 5.9 Annual Average (Fecal) Bacteria (CFU/100mL): 2,074 Annual Average DO (mg/L): 7.4 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Page 319 LITTLE ECON AT HARRELL ROAD

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LEO Sample Location Little Econ At Harrell Road Other Sample Locations LEO Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT HWY 50: PARK MANOR

Basin: Little Econ

LAT: 28° 34' 08" LONG: 81° 13' 37"

Nitrogen and Phosphorus LEZ Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.9 Annual Average TP (mg/L): 0.10 Annual Average Chlorophyll a (ug/L): 4.4 Annual Average (Fecal) Bacteria (CFU/100mL): 625 Annual Average DO (mg/L): 5.8 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 10 M Canopy Cover: Lightly Shaded Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 321 LITTLE ECON AT HWY 50: PARK MANOR

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LEZ Sample Location Little Econ At Hwy 50: Park Manor Other Sample Locations LEZ Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT HWY 50-UNION PARK

Basin: Little Econ

LAT: 28° 34' 08" LONG: 81° 15' 06"

Nitrogen and Phosphorus LEH Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.8 Annual Average TP (mg/L): 0.09 Annual Average Chlorophyll a (ug/L): 1.9 Annual Average (Fecal) Bacteria (CFU/100mL): 3,395 Annual Average DO (mg/L): 5.2 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Page 323 LITTLE ECON AT HWY 50-UNION PARK

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LEH Sample Location Little Econ At Hwy 50-Union Park Other Sample Locations LEH Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT LANDFILL

Basin: Little Econ

LAT: 28° 28' 50" LONG: 81° 13' 36"

Nitrogen and Phosphorus LEG Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.4 Annual Average TP (mg/L): 0.03 Annual Average Chlorophyll a (ug/L): 4.6 Annual Average (Fecal) Bacteria (CFU/100mL): 297 Annual Average DO (mg/L): 3.7 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Page 325 LITTLE ECON AT LANDFILL

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LEG Sample Location Little Econ At Landfill Other Sample Locations LEG Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT LOCKWOOD BLVD.

Basin: Little Econ

LAT: 28° 38' 54" LONG: 81° 10' 41"

Nitrogen and Phosphorus LES Characteristics N P Average Flow (m/s): 2.5 Annual Average TN (mg/L): 1.0 Annual Average TP (mg/L): 0.11 Annual Average Chlorophyll a (ug/L): 1.1 Annual Average (Fecal) Bacteria (CFU/100mL): 312 Annual Average DO (mg/L): 6.5 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 0 M Canopy Cover: Open Exotic Species: MP Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: 42** Overall Health: Poor Fecal Coliform Total Coliform Diversity Index: 3.3** ** Data collected in 2007 Page 327 LITTLE ECON AT LOCKWOOD BLVD.

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LES Sample Location Little Econ At Lockwood Blvd. Other Sample Locations LES Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT PARK MANOR TRIBUTARY

Basin: Little Econ

LAT: 28° 34' 48" LONG: 81° 13' 43"

Nitrogen and Phosphorus LEZZ Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.7 Annual Average TP (mg/L): 0.07 Annual Average Chlorophyll a (ug/L): 7.3 Annual Average (Fecal) Bacteria (CFU/100mL): 458 Annual Average DO (mg/L): 7.2 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 0 M Canopy Cover: Open Exotic Species: No Data Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 329 LITTLE ECON AT PARK MANOR

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LEZZ Sample Location Little Econ At Park Manor Tributary Other Sample Locations LEZZ Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT SR 436: WP PINES

Basin: Little Econ

LAT: 28° 35' 35" LONG: 81° 18' 27"

Nitrogen and Phosphorus LEK Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.7 Annual Average TP (mg/L): 0.20 Annual Average Chlorophyll a (ug/L): 295.4 Annual Average (Fecal) Bacteria (CFU/100mL): 1,658 Annual Average DO (mg/L): 5.5 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Page 331 LITTLE ECON AT SR 436: WP PINES

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LEK Sample Location Little Econ At SR 436: WP Pines Other Sample Locations LEK Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT SR436: BALDWIN OUTFALL

Basin: Little Econ

LAT: 28° 34' 32" LONG: 81° 18' 38"

Nitrogen and Phosphorus LEZB Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.8 Annual Average TP (mg/L): 0.04 Annual Average Chlorophyll a (ug/L): 6.5 Annual Average (Fecal) Bacteria (CFU/100mL): 948 Annual Average DO (mg/L): 6.0 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Page 333 LITTLE ECON AT SR436: BALDWIN

Legend Little Econ At SR436: Baldwin

LEZB Sample Location Outfall Other Sample Locations LEZB Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE ECON AT UNIVERSITY SHORES

Basin: Little Econ

LAT: 28° 34' 25" LONG: 81° 16' 26"

Nitrogen and Phosphorus LEZK Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.8 Annual Average TP (mg/L): 0.11 Annual Average Chlorophyll a (ug/L): 2.0 Annual Average (Fecal) Bacteria (CFU/100mL): 2,633 Annual Average DO (mg/L): 4.9 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Econlockhatchee River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms TMDL Group: 2 BMAP: No Bacteria

Page 335 LITTLE ECON AT UNIVERSITY SHORES

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LEZK Sample Location Little Econ At University Shores Other Sample Locations LEZK Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE WEKIVA AT N. ORANGE BLOSSOM TRAIL

Basin: Little Wekiva

LAT: 28° 36' 34" LONG: 81° 25' 38"

Nitrogen and Phosphorus LWB Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.1 Annual Average TP (mg/L): 0.06 Annual Average Chlorophyll a (ug/L): 14.7 Annual Average (Fecal) Bacteria (CFU/100mL): 305 Annual Average DO (mg/L): 5.8 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Wekiva River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms, BOD,DO, Nutrients TMDL Group: 2 Bacteria BMAP: 2008/2009

Page 337 LITTLE WEKIVA AT N. ORANGE

Legend Little Wekiva At N. Orange Blossom

LWB Sample Location Trail Other Sample Locations LWB Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE WEKIVA AT ORANOLE ROAD

Basin: Little Wekiva

LAT: 28° 36' 34" LONG: 81° 25' 38"

Nitrogen and Phosphorus LWD Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.0 Annual Average TP (mg/L): 0.05 Annual Average Chlorophyll a (ug/L): 6.2 Annual Average (Fecal) Bacteria (CFU/100mL): 475 Annual Average DO (mg/L): 4.7 Maximum Peak Stage (Ft): 27.8 Receiving Body of Water: Wekiva River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms, BOD,DO, Nutrients TMDL Group: 2 Bacteria BMAP: 2008/2009

Biological Information Plant Management Riparian Buffer: > 18 M Canopy Cover: Moderately Shaded Exotic Species: B Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: 54 Overall Health: Fair Fecal Coliform Total Coliform Diversity Index: 4

Page 339 LITTLE WEKIVA AT ORANOLE ROAD

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LWD Sample Location Little Wekiva At Oranole Road Other Sample Locations LWD Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ LITTLE WEKIVA AT SILVER STAR ROAD

Basin: Little Wekiva

LAT: 28° 34' 38" LONG: 81° 26' 02"

Nitrogen and Phosphorus LWA Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 1.4 Annual Average TP (mg/L): 0.06 Annual Average Chlorophyll a (ug/L): 8.8 Annual Average (Fecal) Bacteria (CFU/100mL): 338 Annual Average DO (mg/L): 6.3 Maximum Peak Stage (Ft): 10.7 Receiving Body of Water: Wekiva River Nitrogen Phosphorus TMDL Impairment: Fecal Coliforms, BOD,DO, Nutrients TMDL Group: 2 Bacteria BMAP: 2008/2009

Page 341 LITTLE WEKIVA AT SILVER STAR ROAD

Legend

LWA Sample Location Little Wekiva At Silver Star Road Other Sample Locations LWA Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ SHINGLE CREEK AT CENTRAL FL. PARKWAY

Basin: Shingle Creek

LAT: 28° 24' 37" LONG: 81° 26' 01"

Nitrogen and Phosphorus SCC Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.7 Annual Average TP (mg/L): 0.05 Annual Average Chlorophyll a (ug/L): 1.6 Annual Average (Fecal) Bacteria (CFU/100mL): 99 Annual Average DO (mg/L): 5.5 Maximum Peak Stage (Ft): 7.7 Receiving Body of Water: Lake Toho TMDL Impairment: None Nitrogen Phosphorus TMDL Group: 4 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 0m Canopy Cover: Open Exotic Species: ABKP Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: 53 Overall Health: Fair Fecal Coliform Total Coliform Diversity Index: 3.6

Page 343 SHINGLE CREEK AT CENTRAL FL.

Legend Shingle Creek At Central FL.

SCC Sample Location Parkway Other Sample Locations SCC Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ SHINGLE CREEK AT CONROY ROAD

Basin: Shingle Creek

LAT: 28° 29' 50" LONG: 81° 26' 46"

Nitrogen and Phosphorus SCN Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.8 Annual Average TP (mg/L): 0.04 Annual Average Chlorophyll a (ug/L): 3.2 Annual Average (Fecal) Bacteria (CFU/100mL): 195 Annual Average DO (mg/L): 3.5 Maximum Peak Stage (Ft): No Data Receiving Body of Water: Lake Toho TMDL Impairment: None Nitrogen Phosphorus TMDL Group: 4 BMAP: No Bacteria

Biological Information Plant Management Riparian Buffer: 0 M Canopy Cover: Open Exotic Species: BEO Fishing Management Fish Consumption Advisory: No Macroinvertebrates SCI Score: No Data Overall Health: No Data Fecal Coliform Total Coliform Diversity Index: No Data

Page 345 SHINGLE CREEK AT CONROY ROAD

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SCN Sample Location Shingle Creek At Conroy Road Other Sample Locations SCN Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ SHINGLE CREEK AT HWY. 192

Basin: Shingle Creek

LAT: 28° 18' 13" LONG: 81° 27' 00"

Nitrogen and Phosphorus SCD Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.7 Annual Average TP (mg/L): 0.04 Annual Average Chlorophyll a (ug/L): 0.8 Annual Average (Fecal) Bacteria (CFU/100mL): 402 Annual Average DO (mg/L): 5.5 Maximum Peak Stage (Ft): 7.7 Receiving Body of Water: Lake Toho TMDL Impairment: None Nitrogen Phosphorus TMDL Group: 4 BMAP: No Bacteria

Page 347 SHINGLE CREEK AT HWY. 192

Legend

SCD Sample Location Shingle Creek At Hwy. 192 Other Sample Locations SCD Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ SHINGLE CREEK AT N. OF L.B. MCLEOD

Basin: Shingle Creek

LAT: 28° 30' 39" LONG: 81° 27' 17"

Nitrogen and Phosphorus SCH Characteristics N P Average Flow (m/s): No Data Annual Average TN (mg/L): 0.8 Annual Average TP (mg/L): 0.04 Annual Average Chlorophyll a (ug/L): 6.4 Annual Average (Fecal) Bacteria (CFU/100mL): 232 Annual Average DO (mg/L): 3.3 Maximum Peak Stage (Ft): No Data Receiving Body of Water: Lake Toho TMDL Impairment: None Nitrogen Phosphorus TMDL Group: 4 BMAP: No Bacteria

Page 349 SHINGLE CREEK AT N. OF L.B. MCLEOD

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SCH Sample Location Shingle Creek At N. Of L.B. Mcleod Other Sample Locations SCH Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ ST. JOHNS RIVER AT HWY 50 EAST

Basin: St. Johns River

LAT: 28° 32' 36" LONG: 80° 55' 56"

Nitrogen and Phosphorus SJ22 Characteristics N P Average Flow (m/s): 5.2 Annual Average TN (mg/L): 2.5 Annual Average TP (mg/L): 0.12 Annual Average Chlorophyll a (ug/L): 27.4 Annual Average (Fecal) Bacteria (CFU/100mL): 831 Annual Average DO (mg/L): 5.1 Maximum Peak Stage (Ft): 9.6 Receiving Body of Water: Lake Monroe Nitrogen Phosphorus TMDL Impairment: DO And Nutrients TMDL Group: 3 BMAP: No Dissolved Oxygen

Biological Information Plant Management Riparian Buffer: < 6 M Canopy Cover: Open Exotic Species: ABJS Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Dissolved Oxygen Diversity Index: No Data

Page 351 ST. JOHNS RIVER AT HWY 50 EAST

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SJ22 Sample Location St. Johns River At Hwy 50 East Other Sample Locations SJ22 Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ ST. JOHNS RIVER AT HWY 50 WEST

Basin: St. Johns River

LAT: 28° 32' 36" LONG: 80° 56' 36"

Nitrogen and Phosphorus SJ21 Characteristics N P Average Flow (m/s): 5.1 Annual Average TN (mg/L): 2.0 Annual Average TP (mg/L): 0.11 Annual Average Chlorophyll a (ug/L): 19.9 Annual Average (Fecal) Bacteria (CFU/100mL): 826 Annual Average DO (mg/L): 5.3 Maximum Peak Stage (Ft): 9.6 Receiving Body of Water: Lake Monroe Nitrogen Phosphorus TMDL Impairment: DO And Nutrients TMDL Group: 3 BMAP: No Dissolved Oxygen

Page 353 ST. JOHNS RIVER AT HWY 50 WEST

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SJ21 Sample Location St. Johns River At Hwy 50 West Other Sample Locations SJ21 Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ ST. JOHNS RIVER AT HWY 528

Basin: St. Johns River

LAT: 28° 27' 12" LONG: 80° 53' 50"

Nitrogen and Phosphorus SJ19A Characteristics N P Average Flow (m/s): 4.5 Annual Average TN (mg/L): 2.0 Annual Average TP (mg/L): 0.11 Annual Average Chlorophyll a (ug/L): 9.9 Annual Average (Fecal) Bacteria (CFU/100mL): 380 Annual Average DO (mg/L): 5.0 Maximum Peak Stage (Ft): 9.6 Receiving Body of Water: Lake Monroe Nitrogen Phosphorus TMDL Impairment: DO And Nutrients TMDL Group: 3 BMAP: No Dissolved Oxygen

Page 355 ST. JOHNS RIVER AT HWY 528

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SJ19A Sample Location St. Johns River At Hwy 528 Other Sample Locations SJ19A Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ ST. JOHNS RIVER AT HWY. 520

Basin: St. Johns River

LAT: 28° 22' 13" LONG: 80° 52' 23"

Nitrogen and Phosphorus SJ18 Characteristics N P Average Flow (m/s): 5.9 Annual Average TN (mg/L): 2.2 Annual Average TP (mg/L): 0.13 Annual Average Chlorophyll a (ug/L): 12.2 Annual Average (Fecal) Bacteria (CFU/100mL): 257 Annual Average DO (mg/L): 5.6 Maximum Peak Stage (Ft): 9.6 Receiving Body of Water: Lake Monroe Nitrogen Phosphorus TMDL Impairment: DO And Nutrients TMDL Group: 3 BMAP: No Dissolved Oxygen

Page 357 ST. JOHNS RIVER AT HWY. 520

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SJ18 Sample Location St. Johns River At Hwy. 520 Other Sample Locations SJ18 Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ ST. JOHNS RIVER AT LAKE CANE OUTLET

Basin: St. Johns River

LAT: 28° 34' 01" LONG: 80° 57' 36"

Nitrogen and Phosphorus SJ23 Characteristics N P Average Flow (m/s): 5.2 Annual Average TN (mg/L): 2.2 Annual Average TP (mg/L): 0.12 Annual Average Chlorophyll a (ug/L): 23.0 Annual Average (Fecal) Bacteria (CFU/100mL): 216 Annual Average DO (mg/L): 4.9 Maximum Peak Stage (Ft): 9.6 Receiving Body of Water: Lake Monroe Nitrogen Phosphorus TMDL Impairment: DO And Nutrients TMDL Group: 3 BMAP: No Dissolved Oxygen

Page 359 ST. JOHNS RIVER AT LAKE CANE

Legend St. Johns River At Lake Cane

SJ23 Sample Location Outlet Other Sample Locations SJ23 Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ ST. JOHNS RIVER AT ORANGE MOUND

Basin: St. Johns River

LAT: 28° 35' 53" LONG: 80° 58' 11"

Nitrogen and Phosphorus SJ24 Characteristics N P Average Flow (m/s): 5 Annual Average TN (mg/L): Annual Average TP (mg/L): Annual Average Chlorophyll a (ug/L): Annual Average (Fecal) Bacteria (CFU/100mL): Annual Average DO (mg/L): Maximum Peak Stage (Ft): 9.6 Receiving Body of Water: Lake Monroe Nitrogen Phosphorus TMDL Impairment: DO And Nutrients TMDL Group: 3 BMAP: No Dissolved Oxygen

Biological Information Plant Management Riparian Buffer: 10 M Canopy Cover: Open Exotic Species: ABJS Fishing Management Fish Consumption Advisory: Yes Macroinvertebrates SCI Score: No Data Overall Health: No Data Dissolved Oxygen Diversity Index: No Data

Page 361 ST. JOHNS RIVER AT ORANGE MOUND

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SJ24 Sample Location St. Johns River At Orange Mound Other Sample Locations SJ24 Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ ST. JOHNS RIVER AT POSSUM BLUFF

Basin: St. Johns River

LAT: 28° 26' 44" LONG: 80° 53' 25"

Nitrogen and Phosphorus SJ19 Characteristics N P Average Flow (m/s): 4.7 Annual Average TN (mg/L): 2.1 Annual Average TP (mg/L): 0.12 Annual Average Chlorophyll a (ug/L): 10.6 Annual Average (Fecal) Bacteria (CFU/100mL): 519 Annual Average DO (mg/L): 5.2 Maximum Peak Stage (Ft): 9.6 Receiving Body of Water: Lake Monroe Nitrogen Phosphorus TMDL Impairment: DO And Nutrients TMDL Group: 3 BMAP: No Dissolved Oxygen

Page 363 ST. JOHNS RIVER AT POSSUM BLUFF

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SJ19 Sample Location St. Johns River At Possum Bluff Other Sample Locations SJ19 Orange County Outfalls

Orange County Land Use:

Commercial Industrial Residential Parks / Conservation Rural / Agricultural Institutional μ BIOLOGICAL ANALYSIS BIOLOGICAL ANALYSIS

The 2008 Macroinvertebrate Program

The Macroinvertebrate Program is part of the FDEP Individual Audits. A Stream Condition Environmental Assessment Team within the Index audit is a meticulous practical examina- Natural Resources Management of the Orange tion of an analyst’s field sampling, knowledge, County Environmental Protection Division of and method application capability. After a two- Community and Environmental Services of year apprenticeship consisting of numerous Orange County Government, Florida. The sampling events at several different sites in a program is tasked to contribute biological data variety of physical conditions, an analyst is in combination with the surface water data, to scrutinized carefully to determine their level of assist in the ecological assessment of our knowledge and skill at a field site by authorities watersheds within Orange County. from the bureau of laboratories within FDEP. Method changes in 2008. Laboratory and On August 14, 2008, Jeff Darr passed the field method changes in FDEP SOP LQ7000 FDEP Stream Condition Index audit. and FS3000 went into effect December, 2008. Internal Audits. Internal audits are necessary Data collection in 2008 prior to December to insure compliance to standards set by certi- continued to be based on 2004 SOP fying agencies, that insure integrity of data and standards. The Lake Vegetation Index (LVI) methods by which they are derived. The audit has replaced the Lake Condition Index (LCI) for focuses on the laboratory processing and means of determining listing status and overall analysis of macroinvertebrate samples. The health of the lake. The Stream Condition Index NELAC Institute sets the quality standards for (SCI) has increased its sub-sample size from sample handling and documentation require- 100 organisms to 300 organisms, to reduce ments. variability in scoring. On July 24, 2008, Jeff Darr passed the Macro- The LVI focuses on the shoreline vegetation invertebrate Laboratory Audit habitat, where most water-born organisms live. FDEP has shown statistical significance in determining impacts of land usage adjacent to lakes, using the new LVI method. Program and Agency Cooperative Improve- ments. Analysts completed the examination FDEP Agency Level Audits. The Lake and inventory of the entire benthic collection to Vegetation Index Audit is an agency-level audit establish a documented library and database of administered on one day with several agencies vouchers and confirmed specimens. attempting to demonstrate their proficiency of To facilitate quick and accurate scoring of the the LVI method. It takes place on several lakes, all of which have been examined by Lake Vegetation Index, an LVI calculator was developed within the section. This calculator is qualified FDEP personnel to pre-determine the now being used by other agencies to help their correct score range. analysts who are also tasked to monitor water- On September 18, 2008, EPD passed the shed biology. FDEP Lake Vegetation Condition Index audit. Metadata standards were developed with the The team members included Julie Bortles, Florida Office of Coastal and Aquatic Managed Lynn Denahan, Catherine Johnson, and Jeff Areas Integrated Data Management system for Darr future state-wide data submission. BIOLOGICAL ANALYSIS Page 366

2008 Bioassessment Site Results

In 2008, twenty-two bioassessments were based on the new FDEP 2008 SOP method. performed in the macroinvertebrate program. Figure 3.1 features the SCI Scores on a chart to Orange County EPD staff collected samples illustrate the general condition of bioassessment from ten sites. The City of Orlando staff sites, in streams, according to sample date. collected nine samples, from five sites. Data is Figure 3.2 illustrates the relative percentages of shared between The City of Orlando and SCI scores to category. Figure 3.3 charts the Orange County for those five sites, as a cross- variability of scores across all systems. Figure agency cooperation to fulfill the event mean 4.0 is a map of the 2008-benthic collection and characterization monitoring for the National LVI site locations in their respective drainage Pollution Discharge Elimination System basin for Orange County. (NPDES) permit. Eight LCI’s, one LVI, and eleven SCI’s were performed. Two LVI’s in Lake County sites were also performed for In general, most of our sites’ biological health is FDEP’s biocriteria dataset is not presented good to fair, with the lakes doing better and here. more evenly represented, categorically, nearly 2:1 over the streams. There is a 30 point difference in the scores of our best lake to our Table 1.0 features many of the pertinent lowest performing lake. In the streams, it’s physical and chemical parameters usually nearly double. There is a 57 point difference in effecting benthic macroinvertebrate health. The the scores of our best stream to our lowest table includes all the diversity, sensitivity, and performing stream. The standard deviation of condition indices, along with the dates and site stream scores was 15.62 with the median at 54. locations with their prospective analysis, scores, The standard deviation of lake scores was 9.97 habitat assessments, and score interpretations. with the median at 51.5. More attention was In Table 1.0 most of our lakes were shown to be given to sites in the Shingle Creek basin this slightly more alkaline than our streams. Secchi year over other basins due to public interest and depths were included to indicate clarity of water continuity of data sets. for light penetration.

Figure 1.1 features the LCI scores on a chart to illustrate the general condition of bioassessment sites, on lakes, according to sample date. Figure 1.2 illustrates the relative percentages of LCI scores to category. Figure 2.1 features the new LVI method on one lake, with scoring BIOLOGICAL ANALYSIS Page 367

Lake Condition Index (LCI) Scores

Figure 1.1 Lake Condition Lake Condition Index (LCI) Index Scores by date. The (O) indicator means it was collected by the City of 80 Orlando, but processed by EPD. 70 67 61 60 60 54 49 47 50 44 Very Good 37 40 Good 30 LCI Score LCI 20 10 0

) ) ) ) O O O ( ( ( a(O n Lake a n n to g ay NW n to e r w e r w a rin n w a o B p o o B Distribution of LCI Scores S Distribution of Lake Condition ke a /24 Lake Mann ke R L 1 a 08/26 Lake1 Cane 05/07 Index (LCI) Scores 8L /25 4LakeR /11 Lake /1 2 /0 8 2 0 7/08 Lake C8 0 0 0 0 Date/Site

Good Very Good 50% 50% Lake Vegetation Index (LVI) Scores

Lake Vegetation Index (LVI)

Figure 1.2 Distribution of LCI Scores according to health category in 2008.

76 65

II Healthy

LVI Score 38

Figure 2.1 Lake 0 Vegetation Index (LVI) 05/20 Lake Down Scoring based on the new Date/Site Lake Vegetation Index FDEP 2008 Method. BIOLOGICAL ANALYSIS Page 368

Stream Condition Index (SCI) Scores

Stream Condition Index (SCI)

90 84 80 70 65 64 57 60 54 54 53 49 50 41 40 34 27

SCI Score SCI 30 Good 20 Fair 10 Poor

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Figure 3.1 SCI Scores by date in r ) s ) O) O u O O) ( e ( rk ky ( k k a ot P 2008. The (O) indicator means it e ow e L L ek P t re n re a tF ekiva (O) was collected by the City of C a C a n Cre y C W le m g iv gy Creek (le Orlando, but processed by EPD. g lt tle g g in og o in h B Wek ek @ h S @ A e B S 8 n 3 le 0 0 /2 /0 itt /2 1 co 3 L le Cr 07/21 Lit 0 0 E 0 5 g 1 11/1 g /1 i 4 05/05 Boggyin Creek at 535 B 0 h 07/09 Howell Branch Creek 4 S /1 6 5/0 02 03/25 Rock Springs @ Kelly0 P Date/Site

SCI Score Distribution SCI2008 and Condition LCI VariabilityIndex Variability UsingDistribution 2004 FDEP of SCI RuleScores Standard Deviation

Good 84 9% 80 Poor 27% 70 70 67

60 61

50 Index Score Index

42 40 38 Fair 37 64% 30 27 Figure 3.2 Distribution of SCI Scores 20 according to health category in 2008, using SCI LCI the existing 2004 SOP method of scoring according to FDEP. Figure 3.3 Variability of SCI and LCI Scores across sample locations with standard deviation shown. BIOLOGICAL ANALYSIS Page 369

2008 Bioassessment Site Data HA = Habitat Assessment (Score determined by field attributes and conditions of the land surrounding the site) FDEP conditions of the land surrounding attributes and field determined by HA = Habitat Assessment (Score ** LVI Interpretation is based on 2008 SOP's, Corresponds to Aquatic Life Index 2, in FDEP LT7500 Life Index 2, in FDEP LT7500 to Aquatic Corresponds is based on 2008 SOP's, ** LVI Interpretation time of analysis rule in effect at the the Lakes and Streams, SOP's for is based on 2004 * Interpretation 45,000 ± 17,000]) 100,000 [average Sp Cond = Conductivity/Salinity bleach = 13.2) baking soda = 8.2, ammonia 11.2, pH = Acidity/AlkalinityAcid, >7 Alkaline)water14] (<7 = 7, pure [0 - (batteryacid = 0.2, lemon juice 1.8, rain 5.8, F) temperature) °C (68.72° pressure and 20.4 L @ 760mm Hg sat = 9.0 mg/ 100% temperature; is also affected byand pressure saturation Level mg/L (DO DO = Dissolved Oxygen habitat) loading: higher scores require a cleaner ants and nutrient average sensitivity in the system; their found to pollut- organisms (Score based on the HI = Hulbert Sensitivity Index theory) information and entropy bridges physical (Entropic; Index Content) Weaver Diversity (Information SWDI = Shannon bank angle, vegetation, etc.) (Land use, erosion, e.g. SOP FT3000

Date 12/8S1 Lake Mann Shingle Creek (O) 11/24/08 SC12 Boggy (O) Creek 11/10/08 SCO 10/20/08 BCO

/60 C Lake Cane Lake Barton (O) 8/26/08 SC4 8/11/08 LE2 /50 W Ltl eiaa ou Ltl eia C 5 Fi 7 40 7 03 73 203 7.38 10.30 7 268 7.98 4.01 3.93 72 5 2.98 Fair 110 54 Poor Down Lake SCI 5/20/08 CC9 41 Little Wekiva SCI Little Wekiva at Lotus Big Wekiva 4/15/08 LWD Rock Springs @ Kelly Park 3/25/08 BWKP /10 W Little Wekiva (O) 7/21/08 LWO /80 B4 aeRwn O Hwl rnh C 3 Go 3 15 3 00 73 197 7.36 213 10.05 7.06 156 3 4.59 6.86 13 6.52 1.57 18 3.62 38 4.73 36 129 Good Fair Good 37 54 LCI 84 Howell Branch SCI SCI Shingle Creek Lake Barton (O) Big Econ 2/25/08 LE2 (O) Lake Rowena 2/18/08 HB34 Big Econ @ Altman Power Shingle Creek (O) 2/14/08 BEG 1/28/08 SCO //8BC og re t55 og re SI 5 ar 3 .8 7 .0 .0 158 6.50 277 6.20 7.20 17 5.20 4.78 10 93 3.56 83 Fair Fair 65 SCI 53 Boggy Creek SCI Spring Lake Creek Shingle CntFLPky Shingle Creek @ 5/7/08 SC21 535 Boggy at Creek 5/6/08 SCC 5/5/08 BCC //8HC oelBac re Hwl rnh C 3 Po 6 34 8 .0 .0 251 6.70 4.30 8 3.45 65 Poor 34 SCI Howell Branch (O) Lake Rowena 8/4/08 HB34 Howell Branch Creek NW Lake Conway 7/9/08 HBC 7/8/08 BC7 3/3/08 BCO Boggy Creek (O) Boggy (O) Creek 3/3/08 BCO Site Site Location Site Location μ mhos/cm (fresh 0-999 [average 200 ± 80], brackish 1000-9,999, marine 10,000- marine 1000-9,999, ± 80], brackish 200 0-999 [average mhos/cm (fresh

oelBac LI 7 od 4 .4 1.8 .2 194 8.92 10.78 6 3.44 44 Good 47 LCI Howell Branch hnl re LI 1 eyGo 3 31 1 85 79 282 7.90 8.51 14 3.10 39 VeryGood 61 LCI Shingle Creek hnl re LI 4 od 9 .6 1.0 .0 218 8.00 10.10 3 3.66 39 Good 44 LCI Shingle Creek hnl re SI 7 ar 0 .0 0 .8 .6 233 7.76 6.08 10 4.20 50 Fair 57 SCI Shingle Creek hnl re LI 0 eyGo 5 39 1 84 79 193 7.90 8.40 13 3.99 50 VeryGood 60 LCI Shingle Creek og re SI 4 ar 0 37 9 .7 .5 158 8.25 7.67 9 3.75 108 Fair 64 SCI Boggy Creek og re SI 9 ar 1 36 1 75 69 170 6.99 7.55 12 3.66 115 Fair 49 SCI Boggy Creek og re LI 7 eyGo 6 40 2 75 71 255 7.10 7.50 20 4.02 64 VeryGood 67 LCI Boggy Creek iteWkv SI 7 or 1 .3 62 75 172 7.54 6.29 4 2.33 81 Poor 27 SCI Little Wekiva iteEo LI 9 od 0 35 6 .7 .7 143 8.47 9.67 6 3.59 107 Good 49 LCI Little Econ iteEo LI 4 eyGo 5 34 8 .0 .2 146 8.32 7.80 8 3.45 53 Good Very 54 LCI Little Econ Cypress Basin re LI 5 a IHaty* 9 / na .2 .0 280 6.60 7.92 n/a n/a 79 Cat II Healthy** 65 LVI Creek Analysis Analysis Score Interpretation Interpretation

HA SWDI

HI DO pH Sp Cond Sp Cond BIOLOGICAL ANALYSIS Page 370

Figure 4.0 GIS map of 2008 Benthic Collection 2008 Bioassessment Site Data Sites per Drainage Basin. BIOLOGICAL ANALYSIS Page 371

Literature Cited

Abdi, H (2007). “Coefficients of correlation, alienation and determination.”, N.J. Salkind (ed.): Encyclopedia of Measurement and Statistics. Thousand Oaks, CA: Sage. FDEP (Florida Department of Environmental Protection), 2001. Impaired Waters Rule. Available at http://www.dep.state.fl.us/water/tmdl/docs/AmendedlWR.pdf. Accessed in November 2008.

FDEP, 2006. Whiting, David, Changes in FDEP Standard Operating Procedures for Stream Condition Index (SCI) Sampling. Available at ftp.dep.state.fl.us/pub/ /labs/assessment/ppt/ fab_sci_v3.ppt Accessed in January 2009.

FGDL (Florida Geographic Data Library), 2006b. St Johns River Water Management District LandCover/ Landuse 2004. Available at http://www.sjrwmd.com/programs /plan_monitor /gis/ docs/metadata/luse2004.htm Accessed in January 2008.

Fore, L.S. 2004. Assessing the Biological Condition of Florida Lakes: Development of the Lake Vegetation Index (LVI). Final report to Florida Department of Environmental Protection. www.dep.state.fl.us/water/bioassess/bcmeet.htm Accessed in January 2008.

Helsel, D.R. and R.M. Hirsch, 1992. Statistical Methods in Water Resources. Elsevier, Amsterdam, pp. 221-261. REMOTE MONITORING STATIONS

Orange County currently has four operational real-time water quality data collection units. The physical sondes are maintained by Orange County and communications and flow/ stage equipment is operated by a coordinating agency. The USGS currently manages three of the sites, located at Boggy Creek, Cypress Creek, and Shingle Creek. The South Florida Water Management District (SFWMD) manages the site on the discharge canal from Lake Hart. The four stations collect water quality data every 15 minutes for temperature, conductivity, pH, dissolved oxygen, and turbidity. The stations are maintained by USGS and FDEP protocol and are checked every two weeks for calibration and operational status. The measurements are available at a slight delay after the readings are taken at the websites listed in the introduction. Three additional sites will be operational in 2009. One site station on the Little Econ is managed by the USGS and two others located on the Little Wekiva and Big Econ rivers are managed by Orange County Stormwater.

2008 sites are shown in Red 2009 proposed sites are shown in Green

Little Wekiva Blanchard Park

Little Econ Shingle Creek

Cypress Creek Boggy Creek Lake Hart SHINGLE CREEK REALTIME

Basin: Shingle Creek

LAT: 28° 28’ 18” LONG: 81° 25’ 46” SECTION: 20 TOWNSHIP: 23 RANGE: 29

Characteristics

Drainage Area: 20.6 Sq miles USGS Period of Record: August 2006 to present

IMAGE NOT AVAILABLE

Daily Discharge in Cubic Feet/Sec

DATA NOT AVAILABLE REALTIME STATION: SHINGLE CREEK Page 374

Daily Gauge Height in Feet

DATA NOT AVAILABLE

Daily Temperature in Celsius

DATA NOT AVAILABLE

† Data gaps in the period of water quality record were due to site maintenance of equipment or data was qualified as poor and not used in analysis. Turbidity data prior to February 2008 was qualified as poor and was not used in analysis. Data from October 1 until December 31 is still qualified as provision and subject to revision by the US Geological Survey until finalization of the water year ending September 30. REALTIME STATION: SHINGLE CREEK Page 375

Daily Specific Conductance μS/cm at 25°C

DATA NOT AVAILABLE

Daily Dissolved Oxygen mg/L

DATA NOT AVAILABLE

Daily pH

DATA NOT AVAILABLE

Daily Turbidity (FNU)

DATA NOT AVAILABLE

Basin: Boggy Creek

LAT: 28° 22’ 16” LONG: 81° 18’ 39” SECTION: 28 TOWNSHIP: 24 RANGE: 30

Characteristics

Drainage Area: 83.6 Sq miles USGS Period of Record: September 1959 to present

IMAGE NOT AVAILABLE

Daily Discharge in Cubic Feet/Sec

DATA NOT AVAILABLE REALTIME STATION: BOGGY CREEK Page 378

Daily Gauge Height in Feet

DATA NOT AVAILABLE

Daily Temperature in Celsius

DATA NOT AVAILABLE

Daily Specific Conductance μS/cm at 25°C

DATA NOT AVAILABLE

Daily Dissolved Oxygen mg/L

DATA NOT AVAILABLE

Daily pH

DATA NOT AVAILABLE

Daily Turbidity (FNU)

DATA NOT AVAILABLE

Basin: Cypress Creek

LAT: 28° 23’ 25” LONG: 81° 31’ 11” SECTION: 21 TOWNSHIP: 24 RANGE: 28

Characteristics

Drainage Area: 33.4 Sq miles USGS Period of Record: August 1945 to February 2003, March 2003 to February 2005 (discharge measurements only), March 2005 to present

IMAGE NOT AVAILABLE

Daily Discharge in Cubic Feet/Sec

DATA NOT AVAILABLE REALTIME STATION: CYPRESS CREEK Page 382

Daily Gauge Height in Feet

DATA NOT AVAILABLE

Daily Temperature in Celsius

DATA NOT AVAILABLE

Daily Specific Conductance μS/cm at 25°C

DATA NOT AVAILABLE

Daily Dissolved Oxygen mg/L

DATA NOT AVAILABLE

Daily pH

DATA NOT AVAILABLE

Daily Turbidity (FNU)

DATA NOT AVAILABLE

Basin: Hart

LAT: 28° 21’ 47” LONG: 81° 13’ 4” SECTION: 33 TOWNSHIP: 24 RANGE: 31

Characteristics

Drainage Area: 68.4 Sq miles USGS Period of Record: Realtime data available from June 2008 to Present. Stage and Flow data from 1969 to Present.

IMAGE NOT AVAILABLE

Daily Discharge in Cubic Feet/Sec

DATA NOT AVAILABLE REALTIME STATION: LAKE HART Page 386

Daily Gauge Height in Feet

DATA NOT AVAILABLE

Daily Temperature in Celsius

DATA NOT AVAILABLE

† The Lake Hart site located at the S-62 structure maintained by the SFWMD has had stage and flow data collected from May 1969 to the present. Real time water quality data is available from June 2008 to the present. This information is available for download at the SFWMD DBHYDRO database at https:// my.sfwmd.gov/portal/page/portal/PG_GRP_SFWMD_ERA/PG_SFWMD_ERA_dbhydrobrowser REALTIME STATION: LAKE HART Page 387

Daily Specific Conductance μS/cm at 25°C

DATA NOT AVAILABLE

Daily Dissolved Oxygen mg/L

DATA NOT AVAILABLE

Daily pH

DATA NOT AVAILABLE

Daily Turbidity (FNU)

DATA NOT AVAILABLE

BMAP Basin Management Action Plan - Developed with local stakeholders to specify how to achieve water quality goals on a basin wide approach by recommending management activities that address water quality problems and implements TMDL's set for the basin.

Canopy Cover Open (0-10%) Lightly shaded ( 11-45%) Moderately Shaded (46-80%) Heavily shaded (81-100%)

FCA Fish Consumption Advisory - Issued by the State of Florida to alert the general public about potential health risks from consuming specific fish species from specific waterbodies.

Grass Carp A plant eating fish that has been introduced to Florida as a biological control for aggressive aquatic weeds. These fish are also called white amur or Chi- nese carp and only triploid or sterile carp are permitted for use in lakes or ponds. These fish can live for over 10 years and can reach 60 pounds. The favorite foods are hydrilla, coontail, muskgrass, naiad, slender spikerush, and jointed spikerush.

Exotic/Target A = Water Hyacinth (Eichornia crassipes) B = Aligator weed (Alternathera philoxeroides) Plant Species C = Muskgrass (Chara spp.) D = Stonewort (Nitella spp.) E = Parrot Feather (Myriophyllum aquaticum) F = Brazillian Pepper (Schinus terebinthifolius) G = Primrose Willow (Ludwigia peruviana) H = Chinaberry (Melia azedarach) I = Tropical Soda Apple (Solanum tampicense) J = Torpedo grass (Panicum repens) K = Swamp Mallow (Limnophila sessiliflora) L = Indian Swamp Weed (Hygrophila polysperma) M = Brazillian Elodea (Egeria densa) N = Air Potato (Dioscorea bulbifera) O = Elephant Ear (Colocasia esculenta) P = Hydrilla (Hydrilla verticillata) Q = Chinese Tallow (Sapium sebiferum) R = Paperbark Tree (Melaleuca quinquenervia) S = Water Lettuce (Pistia stratiotes) T = Watermilfoil (Myriophyllum spicatum) U = Cattails (Typha spp.) V = Spatterdock (Nuphar luteum) W = Duckweed (Lemna valdiviana) X = Fanwort (Cabomba caroliniana) Y = Snowflakes (Nymphoides spp.) Z = Water Lily (Nymphaea odorata) AA = Algae BB = Water Fern (Salvinia minima) CC = Coontail (Ceratophyllum demersum) DD = Bladderwort (Utricularia spp.) GLOSSARY OF TERMS Page 390

LVI Lake Vegetation Index - A way of measuring a lakes ecological condition by determining the species mix of the tquatic and wetland plants present within the lake.

LCI Lake Condition Index - A way of measureing an ecosystem's health by sampling the benthic invertebrates, collecting water chemistry and phytoplankon samples.

DI Diversity Index - A mathematical measure of species diversity in a community. This index measures not only the number of species present but the relative abundance of different species. Three indexes used in Florida are the Shannon Weaver Diversity Index, the Hulbert Index, and the Habitat Assessment.

TSI Trophic State Index - The TSI is based on several criteria: chlorophyll, nitrogen, and phosphorus levels as well as water clarity.

TMDL Total Daily Maximum Load - Establishes the maximum amount of a pollutant that can enter a water body without causing exceedances of water quality standards. If a water body does not meet the applicable DEP water quality standard then the TMDL is established. TMDL's require any combination of managament activities to reduce the pollutant loading to the water body. GLOSSARY OF TERMS Page 391

Water Quality Parameters

Total Nitrogen - A measure of all the forms of nitrogen, including inorganic and organic, in a sample. Nitrogen is necessary for the growth of aquatic plants and algae. Increased nitrogen levels result from natural and human related sources of run-off to surface waters.

Total Phosphorus – Includes inorganic and organic types of phosphorus. An essen- tial chemical element that can contribute to the eutrophication of lakes and other water bodies. Increased phosphorus levels result from discharge of phosphorus- containing materials into surface waters.

Fecal Coliform – the major portion of fecal coliform is E. coli, a species indicative of fecal pollution. Found in wastewater treatment systems and bathing waters.

Dissolved Oxygen - A measure of the amount of oxygen available in the water for plants and wildlife. Plants do produce oxygen, but only during daytime hours when the sun is shining. At this time, the aquatic plants can use photosynthesis to convert carbon dioxide into oxygen. At nighttime, the aquatic plants reverse the process convert- ing oxygen to carbon dioxide therefore removing oxygen from the water. With exces- sive nutrients from sources such as fertilizers and wastewaters, the plants will flourish. Then when nighttime comes, the excess of aquatic plants may remove a significant amount of oxygen from the water causing a fish kill

Copper - used as conductor material in electrical equipment. Also used in alloys, plumbing, pesticides, algicides, fungicides, insecticides, ceramics, and paints.

Lead - used in batteries, inorganic pigments, soldering, and piping. Industrial mining may also create lead pollution. APPENDIX A

Trophic State Index Equations For Lakes*

(LN = Natural Log)

CHLATSI = 16.8 + [14.4 x LN(CHLA)]

TNTSI = 56 + [19.8 x LN(TN)]

TN2 TSI = 10 x [5.96 + 2.15 x LN(TN + .0001)]

TP TSI = [18.6 x LN(TP x 1000)] - 18.4

TP2 TSI = 10 x [2.36 x LN(TP x 1000) - 2.38]

If TN/TP > 30 then NUTR TSI = TP2 TSI

If TN/TP < 10 then NUTR TSI = TN2 TSI

If 10 < TN/TP < 30 then NUTR TSI = (TP TSI + TN TSI) / 2

TSI = [CHLA TSI + NUTR TSI) / 2

Interpretation of TSI Results

TSI Category TSI Range

Oligotrophic 0-49

Mesotrophic 50-59

Eutrophic 60-69

Hypereutrophic 70-100

*Taken from the 1996 305(b) report by the Florida Department of Environmental Protection (FDEP) APPENDIX B

Parameter Names Units Method

Alkalinity mg/l SM 2320-B Aluminum mg/l EPA 200.7 Ammonia mg/l EPA 350.1 Antimony mg/l EPA 200.8 Arsenic mg/l EPA 200.8 Barium mg/l EPA 200.7 Beryllium mg/l EPA 200.8 Biochemical oxygen demand (BOD) mg/l EPA 405.1 Boron mg/l EPA 200.7 Cadmium mg/l EPA 200.7 Calcium mg/l EPA 200.7 Carotenoids ug/l SM 10200-H Chloride mg/l EPA 325.2 Chlorophyll a, corrected ug/l SM 10200-H Chlorophyll a, uncorrected ug/l SM 10200-H Chlorophyll b ug/l SM 10200-H Chlorophyll c ug/l SM 10200-H Chromium mg/l EPA 200.7 Cobalt mg/l EPA 200.7 Color, True PCU SM 2320-B Copper mg/l EPA 200.7 Depth, bottom m EPD 100.1 Depth, Secchi Disk Depth m EPD 100.1 Dissolved oxygen (DO) (Field) mg/l EPA 360.2 Fecal Coliform CFU/100mL SM 9222-D Flow FtŇ/s Hardness, Ca + Mg mg/l SM 2340-B Iron mg/l EPA 200.7 Lead mg/l EPA 200.8 Magnesium mg/l EPA 200.7 Manganese mg/l EPA 200.7 APPENDIX B Page 394

Parameter Names Units Method

Molybdenum mg/l EPA 200.7 Nickel mg/l EPA 200.7 Nitrogen, Kjeldahl mg/l EPA 351.2 Nitrogen, Nitrate (NO3) mg/l EPA 353.2 Nitrogen, Nitrite (NO2) mg/l EPA 353.2 Nitrogen, Nitrite (NO2) + Nitrate (NO3) mg/l EPA 353.2 Nitrogen, organic mg/l EPA 351.2 pH STU EPA 150.1 Pheophytin-a ug/l SM 10200-H Phosphorus as P mg/l EPA 365.1 Phosphorus as P (Filtered) mg/l EPA 365.1 Phosphorus, orthophosphate as P mg/l EPA 365.1 Potassium mg/l EPA 200.7 Sample Depth m EPD 100.1 Selenium mg/l EPA 200.7 Silver mg/l EPA 200.8 Sodium mg/l EPA 200.7 Specific conductance (Field) umhos/cm EPA 120.1 Sulfate mg/l EPA 200.8 Temperature, water (Field) C EPA 170.1 Thallium mg/l EPA 200.8 Tin mg/l EPA 200.7 Total Coliform CFU/100ml SM 9222-B Total Dissolved Solids (TDS) mg/l EPA 160.1 Total Nitrogen mg/l EPA 351.2 Total Solids (TS) mg/l EPA 160.3 Total Suspended Solids (TSS) mg/l EPA 160.2 Turbidity NTU EPA 180.1 Vanadium mg/l EPA 200.7 Zinc mg/l EPA 200.7