<<

WSRC-TR-94-0615 Unclassified

METALLURGICAL LABORATORY HAZARDOUS WASTE MANAGEMENT FACILITY GROUNDWATER MONITORING REPORT (U)

FOURTH QUARTER 1994 AND 1994 SUMMARY

Publication Date: March 1995

Authorized Derivative Classifier and Reviewing Official: 3-2?-?S

UNCLASSIFIED Does Not Contain Unclassified Controlled Nuclear Information Westinghouse Savannah River Company Savannah River Site Aiken, SC 29808

Prepared for the U.S. Department of Energy under Control Contract No. DE-AC09-89SR18035 WSRC-TR-94-0615 Unclassified

METALLURGICAL LABORATORY HAZARDOUS WASTE MANAGEMENT FACILITY GROUNDWATER MONITORING REPORT (U)

FOURTH QUARTER 1994 AND 1994 SUMMARY

Publication Date: March 1995

Authorized Derivative Classifier and Reviewing Official:

UNCLASSIFIED Does Not Contain Unclassified Controlled Nuclear Information Westinghouse Savannah River Company Savannah River Site Aiken, SC 29808 DISTRIBUTION OF THIS DOCUMENT IS UNLIMITED'&c

Prepared for the U.S. Department of Energy under Control Contract No. DE-AC09-89SR18035 MASTER DISCLAIMER

This report was prepared as an account of work sponsored by an agency of the Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or .assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States * Government or any agency thereof.

This report has been reproduced directly from the best available copy.

Available to DOE and DOE contractors from the Office of Scientific and Technical Information, P. O. Box 62. Oak Ridge. TN 37831; prices available from (615) 576-8401.

Available to the public from the National Technical Information Service. U. S. Department of Commerce, 5285 Port Royal Rd., Springfield, VA 22161 DISCLAIMER

Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. WSRC-TR-94-0615 Unclassified

METALLURGICAL LABORATORY HAZARDOUS WASTE MANAGEMENT FACILITY GROUNDWATER MONITORING REPORT (U)

FOURTH QUARTER 1994 AND 1994 SUMMARY

Publication Date: March 1995

Key Words

AMB wells pH tetrachloroethylene total organic halogens trichloroethylene

Westinghouse Savannah River Company Savannah River Site Aiken, SC 29808

Prepared for the U.S. Department of Energy under Control Contract No. DE-AC09-89SR18035 WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF ii Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Abstract

During fourth quarter 1994, samples from AMB groundwater monitoring wells at the Metallurgical Laboratory Hazardous Waste Management Facility (Met Lab HWMF) were analyzed for selected heavy metals, indicator parameters, radionuclides, volatile organic compounds, and other constit• uents. Five parameters exceeded standards during the quarter.

As in previous quarters, tetrachloroethylene and trichloroethylene exceeded final Primary Drink• ing Water Standards (PDWS). Bis(2-ethylhexyl) phthalate, which exceeded final PDWS in one well during third quarter 1994, was not analyzed for during fourth quarter 1994. Field measure• ments for pH and specific conductance and laboratory analyses for total organic halogens ex• ceeded the Savannah River Site (SRS) Flag 2 criteria. Aluminum, iron, manganese, and tin, all of which exceeded Flag 2 criteria in at least one well each during third quarter 1994, were not analyzed for during fourth quarter 1994.

Groundwater flow direction and rate in the M-Area Aquifer Zone were similar to previous quar• ters. Conditions affecting determination of groundwater flow directions and rates in the Upper Lost Lake Aquifer Zone, Lower Lost Lake Aquifer Zone, and the Middle Sand Aquifer Zone of the Crouch Branch Confining Unit were also similar to previous quarters.

During second quarter 1994, SRS received South Carolina Department of Health and Environ• mental Control approval for constructing five point-of-compliance wells and two plume definition wells near the Met Lab HWMF. This project began in July 1994 and is complete; however, ana• lytical data from these wells are not yet available.

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF iv Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Contents

Page

Abstract iii

List of Figures vi

List of Tables vi

Executive Summary 1

Introduction 3

Discussion 5 Groundwater Monitoring Data 5 Integrity of the Monitoring Well Network 5 Analytical Results Exceeding Standards 7 Time Series Results 7 Groundwater Elevations, Flow Directions, and Flow Rates 8 Upgradient vs. Downgradient Results 9 Quality Control Results 10

Conclusions 11

1994 Summary 12

References Cited 13

Errata 15

Appendix A—Final Primary Drinking Water Standards A-1

Appendix B—Flagging Criteria B-1

Appendix C—Figures C-1

Appendix D—Groundwater Monitoring Results Tables D-1

Appendix E—Data Quality/Usability Assessment E-1

Appendix F—Time Series Plots F-1

Appendix G—Hydrographs G-1

Appendix H—M-Area Water-Elevation Maps H-1

Metallurgical Laboratory HWMF v Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

List of Figures

Page

1. Location of the Metallurgical Laboratory HWMF at the Savannah River Site C-3

2. Piezometric Surface Map of the M-Area Aquifer Zone in A/M Areas C-4

3. Piezometric Surface Map and Location of the M-Area Aquifer Zone Wells at the Metallurgical Laboratory HWMF C-5

4. Water-Elevation Map and Location of Monitoring Wells in the Upper Lost Lake Aquifer Zone at the Metallurgical Laboratory HWMF C-6

5. Water-Elevation Map and Location of Monitoring Wells in the Lower Lost Lake Aquifer Zone at the Metallurgical Laboratory HWMF C-7

6. Water-Elevation Map and Location of Monitoring Wells in the Middle Sand Aquifer Zone of the Crouch Branch Confining Unit at the Metallurgical Laboratory HWMF C-8

7. Hydrostratigraphy of A/M Areas C-9

List of Tables

Page

1. Maximum Levels of Constituents Exceeding the Final Primary Drinking

Water Standards D-7

2. Maximum Levels of Constituents Exceeding Other Flag 2 Criteria D-8

3. Groundwater Monitoring Results for Individual Wells D-9

Metallurgical Laboratory HWMF vi Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Executive Summary

— — - •

The 18 AMB wells at the Metallurgical Laboratory Hazardous Waste Management Facility (Met Lab HWMF) are monitored for selected constituents to comply with the Natural Resources De• fense Council et al. Consent Decree of May 1988 that identifies the Met Lab HWMF as subject to the Resource Conservation and Recovery Act. In addition, the wells are monitored as re• quested for other constituents as part of the Savannah River Site (SRS) Groundwater Monitoring Program.

During fourth quarter 1994, all 18 wells were monitored at the facility. Well screen zone nomen• clature uses the following hydrostratigraphic assignments: wells AMB 4D, 5, 6, 7, 8D, 9D, 10D, 11D, and 12D monitor the M-Area Aquifer Zone; well AMB 11B monitors the Upper Lost Lake Aquifer Zone; wells AMB 4B, 7B, and 10B monitor the Lower Lost Lake Aquifer Zone; wells AMB 4A, 7A, 10A, and 13AR monitor the Middle Sand Aquifer Zone of the Crouch Branch Con• fining Unit (CBCU); and well AMB 10DD monitors a perched groundwater zone beneath the Met Lab HWMF.

Samples from these wells were analyzed for alkalinity, heavy metals, pH, total alpha-emitting rad• ium, specific conductance, volatile organic compounds, and other constituents. The results of the analyses of these constituents are listed in Table 3. This report describes the results that ex- • ceeded final Primary Drinking Water Standards (PDWS) and SRS flagging criteria.

As in previous quarters, tetrachloroethylene and trichloroethylene exceeded the final PDWS. Tetrachloroethylene exceeded standards in wells AMB 4A, 4D, and 7A; trichloroethylene exceed• ed standards in wells AMB 4A, 4D, 5, 6, and 7A. Total organic halogens exceeded the Flag 2 criteria in wells AMB 4A, 4D, and 7A. No constituents exceeded either the final PDWS or the Flag 2 criteria in upgradient wells AMB 11D and 12D or in downgradient wells AMB 4B, 7, 7B, 8D, 9D, 10A, 10B, 10D, 10DD, 11B, and 13AR. Dichloromethane, a common laboratory contam• inant, has not exceeded the final PDWS in any AMB well since fourth quarter 1993.

Groundwater flow direction and rate in the M-Area Aquifer Zone were similar to previous quar• ters; the flow rate estimate was 130 ft/year during fourth quarter 1994. Reliable estimates of flow directions and rates in the Upper Lost Lake Aquifer Zone could not be determined because data were insufficient. Reliable estimates of flow directions and rates in the Lower Lost Lake Aquifer Zone and in the Middle Sand Aquifer Zone of the CBCU could not be calculated because of the low horizontal gradient and the near-linear distribution of the monitoring wells.

In response to the January 28, 1994, Notice of Deficiency issued by SCDHEC on Revision 0 of the 1992 Met Lab HWMF Part B permit renewal application, SRS plans to obtain additional hydrogeologic and groundwater quality data to further define the groundwater contaminant plume near the Met Lab HWMF and has constructed additional point-of-compliance and plume definition wells. During second quarter 1994, SRS received approval for and constructed the proposed Met Lab HWMF monitoring wells. Analytical data from these wells are not yet available.

Metallurgical Laboratory HWMF 1 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF 2 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Introduction

The Metallurgical Laboratory Hazardous Waste Management Facility (Met Lab HWMF) is located in the eastern section of A/M Areas at the Savannah River Site (SRS) (Figures 1 and 2, Appen• dix C). The facility consists of the process sewer line leading to the Metallurgical Laboratory Ba• sin, the Metallurgical Laboratory Basin, the drainage outfall to a nearby Carolina bay, and the Carolina bay. The following description outlines important events at the facility:

• The Metallurgical Laboratory Basin was constructed and began receiving waste water ef• fluent from the Metallurgical Laboratory Building in 1956 (WSRC, 1992a; WSRC, 1992b). Waste water released to the basin consisted of laboratory wastes from metallographic sample preparation and corrosion testing of stainless steel-based and nickel-based alloys. The quantity of waste water discharged to the basin was small, averaging approximately 1,000 gallons per day (Heffner and Exploration Resources, 1991).

• Release of hazardous waste from the Metallurgical Laboratory Building to the basin was dis• continued in 1983 (WSRC, 1992a; WSRC, 1992b).

• Quarterly groundwater sampling began first quarter 1984 (WSRC, 1992a; WSRC, 1992b).

• Waste water flow to the Met Lab HWMF was terminated November 8, 1985 (WSRC, 1992a; WSRC, 1992b).

• The Met Lab HWMF was named in Section III of the Natural Resources Defense Council et al. Consent Decree, May 26, 1988 (Civil Action 1:85-2583-6, U.S. District Court, District of South Carolina, Aiken Division), thus becoming subject to the requirements of Subtitle C of the Resource Conservation and Recovery Act (RCRA).

• Revision 0 of the facility's RCRA Part B post-closure care permit application (WSRC, 1989) was submitted to the South Carolina Department of Health and Environmental Control (SCDHEC) August 18, 1989.

• A groundwater quality assessment plan (Jerome, 1990) was submitted to SCDHEC in October 1990.

• A revised groundwater quality assessment plan was submitted to SCDHEC in March 1991 and approved by SCDHEC in June 1991 (Jerome, 1991). The plan lists the selected heavy metals, indicator parameters, radionuclides, volatile organic compounds, and other constit• uents that currently require monitoring.

• In September 1991, a phased closure plan for the Met Lab HWMF was approved by SCDHEC, and construction to close the basin began (WSRC, 1992b).

• Revision 1 of the RCRA Part B post-closure care permit application (WSRC, 1991) was sub• mitted to SCDHEC December 16, 1991.

• Closure construction of the basin was completed May 1, 1992; official closure for the basin was completed May 11, 1992; and closure certification of the basin was submitted to

Metallurgical Laboratory HWMF 3 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

SCDHEC July 10, 1992 (letter from J. Gray, Environmental Restoration Closures (ERC), to R. Sentelle, ERC, June 11, 1992). No decision has been made on closure of the Carolina bay.

• Revision 0 of the 1992 RCRA Part B post-closure permit renewal application (WSRC, 1992b) was submitted to SCDHEC in September 1992 in accordance with the regulatory requirement to update and resubmit permit applications every five years.

• Revision 1 of the 1992 RCRA Part B post-closure permit renewal application (WSRC, 1993) was completed in February 1993 and resubmitted to SCDHEC. Revision 1 incorporated changes requested by SCDHEC.

• Revision 3 of the 1992 RCRA Part B post-closure permit renewal application (WSRC, 1994) was submitted to SCDHEC in July 1994. Revision 3 incorporated changes requested by SCDHEC.

Presently, the Environmental Protection Department/Environmental Monitoring Section (EPD/ EMS) samples the 18 AMB wells each quarter, and the Environmental Restoration Department reports the results of this sampling to SCDHEC to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCDHEC, 1990).

Metallurgical Laboratory HWMF 4 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Discussion

Groundwater Monitoring Data

The sampling procedure (WSRC, 1992c) requires evacuation of a minimum of two well volumes and stabilization of pH, specific conductance, and turbidity prior to sample collection. Stability is established when a minimum of three successive measurements, taken within a given time per• iod, are within a specified tolerance range. If a well pumps dry before two well volumes are pur• ged or before stabilization is achieved, it must be revisited within 24 hours for the data to be con• sidered from a single sampling event. On the second visit within 24 hours, samples are taken without purging or stability measurements; thus, these samples may not be representative of groundwater quality.

During fourth quarter 1994, the groundwater samples were analyzed by General Engineering Laboratories of Charleston, South Carolina, and Roy F. Weston, Inc., of Lionville, Pennsylvania, for selected heavy metals, indicator parameters, total alpha-emitting radium, volatile organic com• pounds, and other constituents. This report describes the monitoring results that equaled or ex• ceeded the following standards:

• Safe Drinking Water Act final Primary Drinking Water Standards (PDWS) or drinking water screening levels, as established by the U.S. Environmental Protection Agency (EPA) (Appen• dix A)

• South Carolina final PDWS for lead (Appendix A)

• SRS flagging criteria that are based on final PDWS, Secondary Drinking Water Standards, and method detection limits (Appendix B)

For simplicity, results that equaled or exceeded final PDWS or SRS Flag 2 criteria are described as exceeding standards, above standards, or as elevated. The final PDWS for individual ana- lytes provided in Appendix A may not always match the SRS flagging criteria provided in Appen• dix B. The final PDWS are used as guidelines in this compliance report to meet regulatory re• quirements; the flagging criteria are used by EPD/EMS to identify relative levels of constituents in the groundwater and to guide scheduling of groundwater sampling. integrity of the Monitoring Well Network

The groundwater monitoring well network at the Met Lab HWMF has developed during the past decade as described below (EPD/EMS, 1994):

• Groundwater monitoring wells AMB 1, 2, and 3 were installed in 1983.

• Wells AMB 1 and 3 were abandoned and replaced by wells AMB 1A and 3A in 1984.

• In 1988, wells AMB 4, 5, 6, and 7 were installed, and wells AMB 1A, 2, and 3A were abandoned.

Metallurgical Laboratory HWMF 5 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

• In 1989, wells AMB 8, 8D, 9, 9D, 10, 10D, 10DD, 11D, and 12D were installed. Subse• quently that year, wells AMB 8, 9, and 10 were abandoned.

• In 1991, wells AMB 4A, 4B, 4D, 7A, 7B, 10A, 10B, 11B, and 13AR were installed, and well AMB 4 was abandoned.

In response to the January 28, 1994, Notice of Deficiency issued by SCDHEC on Revision 0 of the 1992 Met Lab HWMF Part B permit renewal application, SRS plans to obtain additional hydrogeologic and groundwater quality data to further define the groundwater contaminant plume near the Met Lab HWMF. During second quarter 1994, SRS received approval to construct sev• en new Met Lab HWMF monitoring wells. This project began in July 1994 and is complete. The monitoring wells installed under the Phase X Drilling Project are as follows:

• M-Area Aquifer Zone: 1 Point-of-Compliance (POC) and 2 plume definition wells

• Lost Lake Aquifer Zone: 2 POC wells

• Middle Sand Aquifer Zone of the Crouch Branch Confining Unit (CBCU): 2 POC wells

The positions of the wells are based on present groundwater flow information in the respective aquifers. The locations will provide three additional downgradient M-Area Aquifer Zone monitor• ing wells for the Met Lab Basin; one additional well downgradient to the Basin; one downgradient well immediately south of the Carolina bay in the Lost Lake Aquifer Zone; and two additional downgradient wells to the Met Lab Basin in the Middle Sand Aquifer Zone of the CBCU. Cone penetrometer technology (e.g., hydrocone sampling) was used to determine where to place the plume definition wells. Analytical data from these wells will be presented in this report when it is available.

Well designations: Hydrostratigraphic nomenclature and well screen zone assignments (Lewis and Aadland, 1993) were revised fourth quarter 1993. Appendix D provides previous and current nomenclature and definitions for the screen zone abbreviations, and Table 3 (Appendix D) indi• cates the screen zone assignment for each well.

According to the revised nomenclature, the current groundwater monitoring well network at the Met Lab HWMF (Figures 3, 4, 5, and 6, Appendix C) is comprised of the following: wells AMB 4D, 5, 6, 7, 8D, 9D, 10D, 11D, and 12D screened within the M-Area Aquifer Zone; well AMB 11B screened within the Upper Lost Lake Aquifer Zone; wells AMB 4B, 7B, and 10B screened within the Lower Lost Lake Aquifer Zone; wells AMB 4A, 7A, 10A, and 13AR screen• ed within the Middle Sand Aquifer Zone of the CBCU; and well AMB 10DD screened within a perched groundwater zone beneath the Met Lab HWMF. Figure 7 (Appendix C) (Lewis and Aadland, 1993) illustrates the hydrostratigraphy of A/M Areas.

Background wells for the facility were proposed in the recent Part B Met Lab HWMF post-closure permit renewal application (WSRC, 1992b).

Well purging: Table 3 (Appendix D) lists the number of well volumes purged from each well dur• ing fourth quarter 1994 and provides sampling statements that describe incomplete or unsuc• cessful sampling events. Wells AMB 4D, 6, 7, 10A, and 13AR went dry during purging and were sampled after they recovered. Thus, the samples from these wells may not be representative of the groundwater quality at the Met Lab HWMF.

Metallurgical Laboratory HWMF 6 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Analytical Results Exceeding Standards

Results for analytes that exceeded the final PDWS (see Appendix A) during fourth quarter 1994 are provided in Table 1 (Appendix D). Tetrachloroethylene exceeded the final PDWS in wells AMB 4A, 4D, and 7A, with a maximum concentration of 43 //g/L in well AMB 4A. Trichloro- ethylene was elevated in wells AMB 4A, 4D, 5, 6, and 7A, with a maximum concentration of 523 A/g/L in well AMB 4A.

Constituents that exceeded other Flag 2 criteria (see Appendix B) during fourth quarter 1994 are summarized in Table 2 (Appendix D). Total organic halogens exceeded the Flag 2 criterion in wells AMB 4A, 4D, and 7A, with a maximum concentration of 156 /#g/L in well AMB 4A.

Table 3 (Appendix D) presents all the results for individual wells and indicates the analytical lab• oratories that conducted the analyses and those analyses that received modifiers (which help identify laboratory accuracy and precision) or that exceeded the EPA-approved holding times during fourth quarter 1994. Constituent results in Table 3 that appear to equal the final PDWS, but are not marked in the S7 column (exceeded final PDWS or screening level), are below the final PDWS in the database. Database results, the results that are compared to the final PDWS, are entered with more significant digits than the results given in this report. Apparent discrepan• cies are the result of the rounding of reported results.

Appendix D also provides definitions of the abbreviations and the modifiers used in the results tables as well as descriptions of holding times, data rounding, and data qualification practices. Appendix E provides a general assessment of the quality and usability of the data provided by EPD/EMS.

Time Series Results

Time series plots of field pH, field specific conductance, tetrachloroethylene, total radium, total organic carbon, total organic halogens, and trichloroethylene for the 18 AMB wells are provided in Appendix F. Trends for these indicator parameters are as follows:

pH: Field pH values for most of the AMB wells have ranged between approximately pH 5 and 7 since sampling began. However, the pH in well AMB 10A consistently has exceeded the alkaline Flag 2 criterion of pH 10; during fourth quarter 1994, it was pH 9.8. The pH in well AMB 11D has usually fluctuated around neutral, but occasionally it has risen to greater than pH 9; during 1994, pH did not exceed standards. The pH level in well AMB 13AR has exceeded the alkaline Flag 2 criterion during recent quarters; during fourth quarter 1994, it was pH 10.2.

Specific conductance: With few exceptions, field specific conductance for well AMB 10A consistently has exceeded the Flag 2 criterion of 500 //S/cm since sampling began; during fourth quarter 1994, specific conductance in well AMB 10A was 703 //S/cm. Specific conduc• tance has ranged between approximately 22 and 300 //S/cm in the remaining wells in recent years.

Tetrachloroethylene: Tetrachloroethylene concentrations for most of the AMB wells have been near or below the final PDWS of 5 /ig/L since sampling began. Concentrations in well AMB 5 have been above the final PDWS since mid-1989, except during third quarter 1993 when the tetrachloroethylene concentration was less than the detection limit. During third quarter 1994, the tetrachloroethylene concentration in well AMB 5 was also below the detec• tion limit. Concentrations above the final PDWS have been found in well AMB 4D during

Metallurgical Laboratory HWMF 7 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

recent quarters, but during third quarter 1994 the tetrachloroethylene concentration was be• low the detection limit. Concentrations in wells AMB 4A and 7A have consistently exceeded the final PDWS. During fourth quarter 1994, the tetrachloroethylene concentrations in these wells were 43 and 16 //g/L, respectively.

Total alpha-emitting radium: All AMB wells have consistently exhibited total alpha-emitting radium activities below the Flag 2 criterion of 20 pCi/L, as the wells did during fourth quarter 1994.

Total organic carbon: Total organic carbon concentrations in the AMB well series have been consistently less than the Flag 2 criterion of 10,000 //g/L since shortly after sampling began, except for a few isolated analyses in different wells during late 1989 through early 1990.

Total organic halogens: Most AMB wells have exhibited total organic halogen concentra• tions less than the Flag 2 criterion of 50 //g/L since sampling began. However, concentra• tions in wells AMB 4A, 5, and 7A have exceeded this standard during most quarters that samples were analyzed. During fourth quarter 1994, concentrations exceeded standards in wells AMB 4A, 4D, and 7A, which had concentrations of 156, 96, and 144 //g/L, respectively.

Trichloroethylene: Trichloroethylene concentrations in wells AMB 4A, 4D, 5, and 7A have consistently exceeded the final PDWS of 5 /#g/L since sampling began. During fourth quarter 1994, these wells had trichloroethylene concentrations of 523, 135, 40, and 200 //g/L, re• spectively. Concentrations in wells AMB 6, 7, 7B, and 8D have fluctuated around the final PDWS; during 1994, trichloroethylene was elevated in two wells. During second quarter 1994, well AMB 7 had a trichloroethylene concentration of 6.6 //g/L. Trichloroethylene con• centrations in well AMB 6 have been consistently elevated since fourth quarter 1993; during fourth quarter 1994, the concentration in well AMB 6 was 7.2 //g/L. Concentrations in the re• maining AMB wells have consistently been less than the final PDWS or the detection limit.

Groundwater Elevations, Flow Directions, and Flow Rates

Figure 2 (Appendix C) provides water-elevation contours for the M-Area Aquifer Zone in A/M Areas. Figures 3 through 6 (Appendix C) present water-elevation data for the M-Area Aquifer Zone, the Upper Lost Lake Aquifer Zone, the Lower Lost Lake Aquifer Zone, and the Middle Sand Aquifer Zone of the CBCU beneath the Met Lab HWMF. Hydrographs for the AMB wells are in Appendix G, and water elevation and potentiometric maps of the M-Area Aquifer Zone, the Upper Lost Lake Aquifer Zone, the Lower Lost Lake Aquifer Zone, and the Middle Sand Aquifer Zone of the CBCU are in Appendix H. Water-elevation figures in Appendix C are oriented to true north using universal transverse Mercator (UTM) coordinates, while figures in Appendix H are ori• ented to true north using latitude-longitude coordinates.

Historically, using UTM coordinates, the horizontal groundwater flow in the M-Area Aquifer Zone beneath the Met Lab HWMF is to the west-northwest, the flow in the Upper Lost Lake Aquifer Zone is to the south, the flow in the Lower Lost Lake Aquifer Zone is to the south-southwest, and the flow in the Middle Sand Aquifer Zone of the CBCU is to the southwest. During fourth quarter 1994, horizontal flow in the M-Area Aquifer Zone was west to northwest (Figure 3, Appendix C). The Upper Lost Lake Aquifer Zone was not contoured because it is monitored by only one well. Potentiometric surfaces in the Lower Lost Lake Aquifer Zone and in the Middle Sand Aquifer Zone of the CBCU were not contoured because of the low horizontal gradient or the near-linear distribution of the monitoring wells.

Metallurgical Laboratory HWMF 8 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Estimated horizontal flow rates for the hydrostratigraphic divisions during the past four quarters are provided below.

Horizontal Groundwater Flow Rates (ft/year) in the Hydrostratigraphic Divisions beneath the Met Lab HWMF

Division 1Q94 2Q94 3Q94 4Q94

M-Area Aquifer Zone 130 150 120 130 Upper Lost Lake Aquifer Zone Na N N N Lower Lost Lake Aquifer Zone N N N N Middle Sand Aquifer Zone of the CBCU N N N N

a N = Horizontal gradient too low, well orientation too linear, or not enough data points to determine the flow rate.

The groundwater flow rate beneath the Met Lab HWMF is estimated using the following equation:

Flow (ft/day) = Hydraulic Conductivity (ft/day) x dh (ft) Porosity (unitless) dl (ft)

Hydraulic conductivity constants estimated for the M-Area Aquifer Zone, the Upper Lost Lake Aquifer Zone, the Lower Lost Lake Aquifer Zone, and the Middle Sand Aquifer Zone of the CBCU are 27, 45, 45, and 45 ft/day, respectively; the effective porosity value for each is 20 percent (Lewis and Aadland, 1992). The value dh is the difference in head, and dl is the length of the flow path.

Flow path length is calculated to the nearest 50 ft for each hydrostratigraphic unit. Flow rate per day is calculated to two significant digits, then multiplied by 365 and rounded to two significant digits for the flow rate per year. Flow rate estimates vary depending on the vertical gradient be• tween wells, the size of the area under consideration, and the number of data points. The val• ues presented here are useful as order of magnitude estimates only.

The flow rate estimate for groundwater in the M-Area Aquifer Zone beneath the Met Lab HWMF during fourth quarter 1994 is as follows (Figure 3, Appendix C):

27 - 20 = 0.36 ft/day 0.20 750

0.36 ft/day x 365 days « 130 ft/year

Upgradient vs. Downgradient Results

M-Area Aquifer Zone wells AMB 11D and 12D are upgradient relative to the Met Lab HWMF. No AMB wells monitor upgradient groundwater quality in the Upper and Lower Lost Lake Aquifer Zones or the Middle Sand Aquifer Zone of the CBCU. The 1992 RCRA Part B post-closure per• mit renewal application (WSRC, 1992b) proposes to identify upgradient wells for these units (WSRC, 1992b) after data are received from the Phase X Drilling Project.

During fourth quarter 1994, no elevated constituents were found in the upgradient wells in the M-Area Aquifer Zone. Downgradient M-Area Aquifer Zone well AMB 4D contained elevated lev-

Metallurgical Laboratory HWMF 9 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

els of tetrachloroethylene, total organic halogens, and trichloroethylene; wells AMB 5 and 6 con• tained elevated levels of trichloroethylene.

Aluminum was not analyzed for during second and fourth quarters; downgradient well AMB 11B, in the Upper Lost Lake Aquifer Zone, contained an elevated level of aluminum during first quarter 1994. In the Lower Lost Lake Aquifer Zone, downgradient well AMB 4B did not contain elevated levels of trichloroethylene, unlike second quarter 1994. Downgradient wells AMB 4A and 7A in the Middle Sand Aquifer Zone of the CBCU contained elevated levels of tetrachloroethylene, total organic halogens, and trichloroethylene.

Quality Control Results

Well AMB 10B was selected to receive blind replicate analyses during fourth quarter 1994. Blind replicate analyses, representing approximately 5 percent of the quarter's total groundwater sam• ples, are performed by the analytical laboratories each quarter for wells selected by EPD/EMS as part of the EPD/EMS quality assurance program (see Appendix E). The results of the analyses are used for both intralaboratory and interiaboratory comparisons. The Savannah River Site's Groundwater Monitoring Program, Fourth Quarter 1994 (U) (EPD/EMS, 1995, in preparation) provides full replicate results and statistical comparisons of both blind replicate and duplicate re• sults. As a part of intralaboratory quality assurance procedures, certain analyses were duplicat• ed by the laboratory. These results are reported in Table 3 (Appendix D).

Metallurgical Laboratory HWMF 10 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Conclusions

During fourth quarter 1994, as in previous quarters, tetrachloroethylene and trichloroethylene ex• ceeded the final PDWS in several AMB wells. Tetrachloroethylene exceeded standards in wells AMB 4A, 4D, and 7A, with values of 43, 10, and 16 j/g/L, respectively. Trichloroethylene ex• ceeded standards in wells AMB 4A, 4D, 5, 6, and 7A, with values of 523, 135, 40, 7.2, and 200 fjg/L, respectively. Bis(2-ethylhexyl) phthalate, gross alpha, and lead, all of which exceeded standards in previous quarters, were not analyzed for during fourth quarter 1994. Dichlorometh- ane (a common laboratory contaminant) has not exceeded the final PDWS since fourth quarter 1993. The RCRA Part B post-closure care permit application for the Met Lab HWMF (WSRC, 1991) indicates that a small, isolated plume of tetrachloroethylene and trichloroethylene, located in the M-Area Aquifer Zone near the Met Lab HWMF, is from the Metallurgical Laboratory Basin. The permit application also indicates that the primary source of the contamination in the deeper units near the Met Lab HWMF is the extensive organic halogens plume resulting from M-Area operations. SRS is addressing the effects of organic halogens near the Met Lab HWMF under the provisions of the corrective action program of the M-Area HWMF Part B post-closure permit renewal application (WSRC, 1992b; WSRC, 1993; WSRC, 1994).

Similar to past quarters, field measurements for pH and specific conductance, and laboratory analyses for total organic halogens, exceeded the Flag 2 criteria in one or more of the AMB wells during fourth quarter 1994. Field pH exceeded standards in well AMB 13AR, with a value of pH 10.2. Field specific conductance exceeded standards with a value of 703 //S/cm in well AMB 10A. Total organic halogens exceeded standards in wells AMB 4A, 4D, and 7A, with val• ues of 156, 96, and 144//g/L, respectively. Aluminum, iron, manganese, and tin, all of which exceeded Flag 2 criteria in several wells during third quarter 1994, were not analyzed for during fourth quarter 1994.

During fourth quarter 1994, no elevated constituents were detected in upgradient wells AMB 11D and 12D. Also, elevated constituents were not found in downgradient wells AMB 4B, 7, 7B, 8D, 9D, 10A, 10B, 10D, 10DD, 11B, and 13AR.

During second quarter 1994, SRS received SCDHEC approval to install five POC wells and two plume definition wells near the Met Lab HWMF. This project began in July 1994 and is com• plete. The data from these wells will be presented in this report when available.

Historically and currently, the horizontal flow direction in the M-Area Aquifer Zone beneath the Met Lab HWMF is west to northwest (UTM coordinates). Historically, the flow direction in the Upper Lost Lake Aquifer Zone is to the south-southeast, the flow in the Lower Lost Lake Aquifer Zone is to the south-southwest, and the flow in the Middle Sand Aquifer Zone of the CBCU is to the southwest. During fourth quarter 1994, data were insufficient to determine the flow direction and rate in the Upper Lost Lake Aquifer Zone. The low horizontal gradient or near-linear ar• rangement of the monitoring wells in the Lower Lost Lake Aquifer Zone and in the Middle Sand Aquifer Zone of the CBCU prevented determination of reliable flow directions and rates in these hydrostratigraphic divisions. The flow rate estimate for groundwater in the M-Area Aquifer Zone during fourth quarter was 130 ft/year.

Metallurgical Laboratory HWMF 11 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

1994 Summary

During 1994, 18 groundwater monitoring wells of the AMB series at the Met Lab HWMF were sampled quarterly to comply with the Natural Resources Defense Council et al. Consent Decree of May 1988 and as part of the Savannah River Site Groundwater Monitoring Program. SRS has completed construction of five POC and two plume definition wells near the Met Lab HWMF, as approved by SCDHEC during second quarter 1994. Analytical data from these wells will be in• cluded in this report when available.

During the year, samples from seven of the wells (39%) exhibited levels of bis(2-ethylhexyl) phthalate, gross alpha, lead, tetrachloroethylene, and trichloroethylene that exceeded the final PDWS. In addition, aluminum, field pH, field specific conductance, iron, manganese, tin, and total organic halogens exceeded Flag 2 criteria in one or more of the wells each quarter these constituents were analyzed.

The results for 1994 are similar to the results for 1993, except for dichloromethane and lead. Dichloromethane, a common laboratory contaminant, did not exceed the final PDWS in 1994 as it had done in 1993. The Flag 2 criterion for lead changed from 15 to 50 //g/L between fourth quarter 1993 and first quarter 1994; consequently, the third quarter result of 24 //g/L for well AMB 6 was not flagged as elevated.

Groundwater flow directions and rates at the Met Lab HWMF were simiiiar to flow directions and rates in 1993.

Metallurgical Laboratory HWMF 12 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

References Cited

EPD/EMS (Environmental Protection Department/Environmental Monitoring Section), 1994. En• vironmental Protection Department's Well Inventory (through the second quarter of 1994), ESH-EMS-940518. Westinghouse Savannah River Company, Savannah River Site, Aiken, SC.

EPD/EMS (Environmental Protection Department/Environmental Monitoring Section), 1995. The Savannah River Site's Groundwater Monitoring Program, Fourth Quarter 1994 (U), ESH- EMS-940517, in preparation. Westinghouse Savannah River Company, Savannah River Site, Aiken, SC.

Heffner, J. D., and Exploration Resources, Inc., 1991. Technical Summary of Groundwater Quality Protection Program at the Savannah River Site (1952-1986), Volume I—Site Geo- hydrology and Waste Sites, DPSP-88-1002. Westinghouse Savannah River Company, Savan• nah River Site, Aiken, SC.

Jerome, K. M., 1990. Groundwater Quality Assessment Plan for the Metallurgical Labora• tory Hazardous Waste Management Facility, WSRC-RP-90-1185, October 1990. Westing• house Savannah River Company, Savannah River Site, Aiken, SC.

Jerome, K. M., 1991. Groundwater Quality Assessment Plan for the Metallurgical Labora• tory Hazardous Waste Management Facility, WSRC-RP-90-1185, Rev. 1, March 1991. West• inghouse Savannah River Company, Savannah River Site, Aiken, SC.

Lewis, S. E., and R. K. Aadland, 1992. Hydrogeologic Setting of A/M Area: Framework for Groundwater Transport, WSRC-TR-92-355. Westinghouse Savannah River Company, Savan• nah River Site, Aiken, SC.

Lewis, S. E., and R. K. Aadland, 1993. Hydrogeologic Setting of the A/M Area: Framework for Groundwater Transport, WSRC-TR-92-355 (December 10, 1993, revision). Westinghouse Savannah River Company, Savannah River Site, Aiken, SC.

SCDHEC (South Carolina Department of Health and Environmental Control), 1990. South Caro• lina Hazardous Waste Management Regulations, R.61-79.124, .260 through .266, .268, and .270; November 1990. Columbia, SC.

WSRC (Westinghouse Savannah River Company), 1989. Application for a RCRA Part B Post- Closure Care Permit, Vol. XIV, Metallurgical Laboratory Hazardous Waste Management Fac• ility, Rev. 0, June 1989. Savannah River Site, Aiken, SC.

WSRC (Westinghouse Savannah River Company), 1991. Application for a Hazardous Waste Part B Post-Closure Care Permit, Vol. XIV [Metallurgical Laboratory Hazardous Waste Manage• ment Facility], Rev. 1, December 1991. Savannah River Site, Aiken, SC.

WSRC (Westinghouse Savannah River Company), 1992a. Metallurgical Laboratory Hazard• ous Waste Management Facility Basin Closure Plan, Vol. I, Rev. 9, April 1992. Savannah River Site, Aiken, SC.

Metallurgical Laboratory HWMF 13 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WSRC (Westinghouse Savannah River Company), 1992b. 1992 RCRA Part B Permit Renewal Application, Volume XIV, Metallurgical Laboratory Hazardous Waste Management Facility— Post-Closure, WSRC-IM-91-53, Book 1, Rev. 0, September 1992. Savannah River Site, Aiken, SC.

WSRC (Westinghouse Savannah River Company), 1992c. Sampling Groundwater Monitoring Wells, Hydrogeologic Data Collection Procedures and Specifications, Manual 3Q5, Rev. 1, Chapter 15. Savannah River Site, Aiken, SC.

WSRC (Westinghouse Savannah River Company), 1993. 1992 RCRA Part B Permit Renewal Application, Volume III, M-Area Hazardous Waste Management Facility—Post-Closure, WSRC-IM-91-53, Book 1, Rev. 1, February 1993. Savannah River Site, Aiken, SC.

WSRC (Westinghouse Savannah River Company), 1994. M-Area Hazardous Waste Manage• ment Facility 1992 Renewal Application for a RCRA Part B Permit, WSRC-IM-91-53, Vol. Ill, Rev. 3, July 1994. Savannah River Site, Aiken, SC.

Metallurgical Laboratory HWMF 14 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Errata

In tables with four quarters of data (Table 1, Appendix D), some values for earlier quarters may differ from values for those same quarters presented in earlier reports because some reanalyses may have been performed by the laboratories after the reports were printed. Also, samples for field data are collected once each quarter, but samples for analytical data may be collected more than once each quarter. Thus, because the results tables present the highest analytical results for the quarter, a reported analytical result may be from a sample collected on a different date than the date the field data sample was collected.

Fourth Quarter 1993:

• Page 5, Discussion, Groundwater Monitoring Data: Roy F. Weston, Inc., was omitted from the paragraph discussing the laboratories that analyzed groundwater samples for the quarter.

First Quarter 1994 through Third Quarter 1994:

• No errata have been reported.

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF 16 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Appendix A

Final Primary Drinking Water Standards

Metallurgical Laboratory HWMF A-1 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF A-2 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Final Primary Drinking Water Standards

Analyte Unit Level Status Source

Alachlor //g/L 2 Final EPA, 1993 Aldicarb3 //g/L 3 Final EPA, 1993 Aldicarb sulfone3 //g/L 2 Final EPA, 1993 Aldicarb sulfoxide3 //g/L 4 Final EPA, 1993 Antimony «|/L 6 Final EPA, 1993 Arsenic A/g/L 50 Final EPA,1993 Asbestos Fibers/L 7,000,000 Final EPA, 1993 Atrazine //g/L 3 Final EPA, 1993 Barium //g/L 2,000 Final EPA, 1993 Benzene //g/L 5 Final EPA, 1993 Benzo[a]pyrene //g/L 0.2 Final EPA, 1993 //g/L 4 Final EPA, 1993 Bis(2-ethylhexyl) phthalate //g/L 6 Final EPA, 1993 Bromodichloromethane pg/L 100 Final EPA, 1993 Bromoform //g/L 100 Final EPA, 1993 2-sec-Butyl-4,6-din'rtrophenol //g/L 7 Final EPA, 1993 Cadmium //g/L 5 Final EPA,1993 Carbofuran pgfl- 40 Final EPA, 1993 Carbon tetrachloride //g/L 5 Final EPA,1993 Chlordane //g/L 2 Final EPA, 1993 Chlorobenzene //g/L 100 Final EPA, 1993 Chloroethene (Vinyl chloride) //g/L 2 Final EPA, 1993 Chloroform //g/L 100 Final EPA, 1993 Chromium //g/L 100 Final EPA, 1993 Copper //g/L 1,300 Final EPA, 1993 Cyanide //g/L 200 Final EPA, 1993 Dalapon3 //g/L 200 Final EPA, 1993 Dibromochloromethane //g/L 100 Final EPA, 1993 1,2-Dibromo-3-chloropropane //g/L 0.2 Final EPA, 1993 1,2-Dibromoethane //g/L 0.05 Final EPA, 1993 1,2-Dichlorobenzene //g/L 600 Final EPA, 1993 1,4-Dichlorobenzene //g/L 75 Final EPA,1993 1,2-Dichloroethane //g/L 5 Final EPA, 1993 1,1 -Dichloroethylene //g/L 7 Final EPA, 1993 1,2-Dichloroethylene //g/L 50 Final EPA, 1993 cis-1,2-Dichloroethylene //g/L 70 Final EPA, 1993 trans-1,2-Dichloroethylene //g/L 100 Final EPA, 1993 Dichloromethane (Methylene chloride) //g/L 5 Final EPA, 1993 2,4-Dichlorophenoxyacetic acid //g/L 70 Final EPA, 1993 1,2-Dichloropropane //g/L 5 Final EPA, 1993 Di(2-ethylhexyl) adipate3 //g/L 400 Final EPA, 1993 Diquat dibromide3 //g/L 20 Final EPA, 1993 Endothall3 //g/L 100 Final EPA,1993 Endrin //g/L 2 Final EPA,1993 Ethylbenzene //g/L 700 Final EPA, 1993 Fluoride //g/L 4,000 Final EPA,1993 Glyphosate3 //g/L 700 Final EPA, 1993 Gross alpha pCi/L 1.5E+01 Final EPA, 1993 Heptachlor //g/L 0.4 Final EPA, 1993 Heptachlor epoxide //g/L 0.2 Final EPA, 1993 Hexachlorobenzene //g/L 1 Final EPA, 1993 Hexachlorocyclopentadiene //g/L 50 Final EPA, 1993 Lead //g/L 50 Final SCDHEC, 1981

Metallurgical Laboratory HWMF A-3 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Analyte Unit Level Status Source

Lindane //g/L 0.2 Final EPA, 1993 Mercury ng/i- 2 Final EPA, 1993 Methoxychlor //g/L 40 Final EPA, 1993 Nickel #*/L 100 Final EPA, 1993 Nitrate as nitrogen ng'i 10,000 Final EPA,1993 Nitrate-nitrite as nitrogen //g/L 10,000 Final EPA, 1993 Nitrite as nitrogen ^g/L 1,000 Final EPA, 1993 Nonvolatile beta pCi/L 5E+01 Interim Final EPA,1977 3 Oxamyl «/L 200 Final EPA, 1993 PCB 1016 egn. 0.5 Final EPA, 1993 PCB 1221 vgn. 0.5 Final EPA, 1993 PCB 1232 //g/L 0.5 Final EPA, 1993 PCB 1242 «/L 0.5 Final EPA, 1993 PCB 1248 A/g/L 0.5 Final EPA, 1993 PCB 1254 //g/L 0.5 Final EPA, 1993 PCB 1260 pg/L 0.5 Final EPA, 1993 PCB 1262 //g/L 0.5 Final EPA, 1993 Pentachlorophenol //g/L 1 Final EPA, 1993 Picloram3 «/L 500 Final EPA, 1993 Selenium P0«- 50 Final EPA, 1993 Simazine3 pgn. 4 Final EPA, 1993 Strontium-89/90c pCi/L 8E+00 Final EPA,1993 Strontium-90 pCi/L 8E+00 Final EPA, 1993 Styrene //g/L 100 Final EPA, 1993 2,3,7,8-TCDD //g/L 0.00003 Final EPA,1993 Tetrachloroethylene //g/L 5 Final EPA, 1993 Thallium //g/L 2 Final EPA, 1993 Toluene //g/L 1,000 Final EPA,1993 Toxaphene //g/L 3 Final EPA, 1993 2,4,5-TP (Silvex) //g/L 50 Final EPA, 1993 1,2,4-Trichlorobenzene //g/L 70 Final EPA, 1993 1,1,1 -Trichloroethane «/L 200 Final EPA,1993 1,1,2-Trichloroethane //g/L 5 Final EPA, 1993 Trichloroethyiene pg/L 5 Final EPA, 1993 pCi/mL 2E+01 Final EPA, 1993 Xylenes //g/L 10,000 Final EPA, 1993

Note: Final PDWS were assigned to alachior, aldicarb, aldicarb sulfone, aldicarb sulfoxide, atrazine, carbofuran, dalapon, di(2-ethylhexyl) adipate, diquat dibromide, endothall, glyphosate, oxamyl, picloram, and simazine in the SRS Groundwater Monitoring Program for the first time beginning first quarter 1994.

At present, EMS does not perform this analysis because the constituent is not in the current contract. The standard given is for gross alpha including radium-226 but excluding radon and . For double radionuclide analyses where each separate radionuclide has its own standard, the more stringent standard is used.

Metallurgical Laboratory HWMF A-4 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified References

EPA (U.S. Environmental Protection Agency), 1977. National Interim Primary Drinking Water Regulations, EPA-570/9-76-003. , DC.

EPA (U.S. Environmental Protection Agency), 1993. National Primary Drinking Water Regula• tions, Code of Federal Regulations, Title 40, Part 141, pp. 592-732. Washington, DC.

SCDHEC (South Carolina Department of Health and Environmental Control), 1981. State Primary Drinking Water Regulations, R.61-58.5. Columbia, SC.

Metallurgical Laboratory HWMF A-5 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF A-6 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Appendix B

Flagging Criteria

Metallurgical Laboratory HWMF B-1 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF B-2 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Flagging Criteria

The Savannah River Site Environmental Protection Department/Environmental Monitoring Section (EPD/EMS) flagging criteria are as follows:

• Flag 2 criteria for constituents equal the Safe Drinking Water Act (SDWA) final Primary Drink• ing Water Standards (PDWS), the SDWA proposed PDWS, or the SDWA Secondary Drinking Water Standards (SDWS). If a constituent does not have a drinking water standard, the Flag 2 criterion equals 10 times the method detection limit (MDL) calculated as the 90th percentile detection limit obtained recently by one of the primary analytical laboratories.

• Flag 1 criteria for constituents equal one-half of the final PDWS, one-half the proposed PDWS, or one-half the SDWS. If a constituent does not have a drinking water standard, the Flag 1 criterion equals 5 times the MDL calculated as the 90th percentile detection limit obtained recently by one of the primary analytical laboratories.

• Flag 0 criteria are assigned to constituent levels below Flag 1 criteria, constituent levels below the sample detection limits, or constituents having no flagging criteria.

The following parameters are exceptions to the flagging rules:

• EPD/EMS sets flagging criteria for pH and specific conductance. No flags are set for alkalin• ity, calcium, carbonate, magnesium, potassium, silica, sodium, total dissolved solids, total phosphates (as P), and total phosphorus. Analyses for these parameters are conducted as part of the biennial comprehensive analyses or by special request.

• Aesthetic parameters such as color, corrosivity, Eh, odor, surfactants, and turbidity are not assigned flagging criteria but are analyzed by special request.

• Common laboratory contaminants and cleaners such as dichloromethane (methylene chlo• ride), ketones, phthalates, and toluene are not assigned flagging criteria unless they have primary drinking water standards. These constituents are analyzed by special request.

Analyte Unit Flag 1 Flag 2 Source3

Acenaphthene //g/L 50 100 EPA Method 8270 Acenaphthylene //g/L 50 100 EPA Method 8270 Acetone //g/L 500 1,000 EPA Method 8240 Acetonitrile (Methyl cyanide) //g/L 500 1,000 EPA Method 8240 Acetophenone //g/L 50 100 EPA Method 8270 2-Acetylaminofluorene //g/L 50 100 EPA Method 8270 Acrolein //g/L 100 200 EPA Method 8240 Acrylonitrile //g/L 100 200 EPA Method 8240 Actinium-228 pCi/L 1.64E+03 3.27E+03 Proposed PDWS (EPA, 1991) Alachlor //g/L 1 2 Final PDWS (EPA, 1993a) Aldicarbb //g/L 1.5 3 Final PDWS (EPA, 1993a) Aldicarb sulfoneb //g/L 1 2 Final PDWS (EPA, 1993a) Aldicarb sulfoxide13 //g/L 2 4 Final PDWS (EPA, 1993a) Aldrin //g/L 0.25 0.5 EPA Method 8080

Alkalinity (as CaC03) No flag No flag Set by EPD/EMS Allyl chloride //g/L 250 500 EPA Method 8240 Aluminum //g/L 25 50 SDWS (EPA, 1993b) Aluminum, dissolved //g/L 25 50 SDWS (EPA, 1993b) Aluminum, total recoverable //g/L 25 50 SDWS (EPA, 1993b)

Metallurgical Laboratory HWMF B-3 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Analyte Unit FJag_1 Flag 2 Source

Americium-241 pCi/L 3.17E+00 6.34E+00 Proposed PDWS (EPA, 1991) -243 pCi/L 3.19E+00 6.37E+00 Proposed PDWS (EPA, 1991) 4-Aminobiphenyl //g/L 50 100 EPA Method 8270 Ammonia pg/L 500 1,000 APHA Method 417B Ammonia nitrogen //g/L 500 1,000 EPA Method 350.1 Aniline //g/L 50 100 EPA Method 8270 Anthracene pg/L 50 100 EPA Method 8270 Antimony //g/L 3 6 Final PDWS (EPA, 1993a) Antimony, dissolved //g/L 3 6 Final PDWS (EPA, 1993a) Antimony, total recoverable //g/L 3 6 Final PDWS (EPA, 1993a) Antimony-125 pCi/L 1.5E+02 3E+02 Interim Final PDWS (EPA, 1977) Aramite //g/L 50 100 EPA Method 8270 Arsenic pg/L 25 50 Final PDWS (EPA, 1993a) Arsenic, dissolved //g/L 25 50 Final PDWS (EPA, 1993a) Arsenic, total recoverable //g/L 25 50 Final PDWS (EPA, 1993a) Asbestos Fibers/L 3,500,000 7,000,000 Final PDWS (EPA, 1993a) Atrazine //g/L 1.5 3 Final PDWS (EPA, 1993a) Azobenzene //g/L 50 100 EPA Method 625 Barium //g/L 1,000 2,000 Final PDWS (EPA, 1993a) Barium, dissolved //g/L 1,000 2,000 Final PDWS (EPA, 1993a) Barium, total recoverable //g/L 1,000 2,000 Final PDWS (EPA, 1993a) Barium-140c pCi/L 4.5E+01 9E+01 Interim Final PDWS (EPA, 1977) Benzene //g/L 2.5 5 Final PDWS (EPA, 1993a) alpha-Benzene hexachloride //g/L 0.25 0.5 EPA Method 8080 beta-Benzene hexachloride //g/L 0.25 0.5 EPA Method 8080 delta-Benzene hexachloride //g/L 0.25 0.5 EPA Method 8080 Benzidine //g/L 250 500 EPA Method 8270 Benzo[a]anthracene //g/L 0.05 0.1 Proposed PDWS (EPA, 1990) Benzo[6]fluoranthene //g/L 0.1 0.2 Proposed PDWS (EPA, 1990) Benzo[/c]fluoranthene //g/L 0.1 0.2 Proposed PDWS (EPA, 1990) Benzoic acid //g/L 250 500 EPA Method 8270 Benzo[£f,h,»]perylene pg/L 50 100 EPA Method 8270 Benzo[a]pyrene //g/L 0.1 0.2 Final PDWS (EPA, 1993a) 1,4-Benzoquinone //g/L 50 100 EPA Method 8270 Benzyl alcohol //g/L 50 100 EPA Method 8270 Beryllium //g/L 2 4 Final PDWS (EPA, 1993a) Beryllium, dissolved //g/L 2 4 Final PDWS (EPA, 1993a) Beryllium, total recoverable //g/L 2 4 Final PDWS (EPA, 1993a) Beryllium-7 pCi/L 3E+03 6E+03 Interim Final PDWS (EPA, 1977) Bis(2-chloroethoxy) methane //g/L 50 100 EPA Method 8270 Bis(2-chloroethyl) ether //g/L 50 100 EPA Method 8270 Bis(2-chloroisopropyl) ether //g/L 50 100 EPA Method 8270 Bis(chloromethyl) ether //g/L 50 100 EPA Method 8270 Bis(2-ethylhexyl) phthalate //g/L 3 6 Final PDWS (EPA, 1993a) Bismuth-214 pCi/L 9.4E+03 1.89E+04 Proposed PDWS (EPA, 1991) //g/L 150 300 EPA Method 6010 Boron, dissolved //g/L 150 300 EPA Method 6010 Boron, total recoverable //g/L 150 300 EPA Method 6010 Bromide //g/L 5,000 10,000 EPA Method 300.0 Bromodichloromethane //g/L 50 100 Final PDWS (EPA, 1993a) Bromoform //g/L 50 100 Final PDWS (EPA, 1993a) Bromomethane (Methyl bromide) //g/L 5 10 EPA Method 8240 4-Bromophenyl phenyl ether //g/L 50 100 EPA Method 8270 Butylbenzyl phthalate No flag No flag Set by EPD/EMS 2-sec-Butyl-4,6-dinitrophenol //g/L 3.5 7 Final PDWS (EPA, 1993a)

Metallurgical Laboratory HWMF B-4 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Analvte Unit Flag 1 Flag 2 Source

Cadmium pg/L 2.5 5 Final PDWS (EPA, 1993a) Cadmium, dissolved pgfl- 2.5 5 Final PDWS (EPA, 1993a) Cadmium, total recoverable ^g/L 2.5 5 Final PDWS (EPA, 1993a) Calcium No flag No flag Set by EPD/EMS Calcium, dissolved No flag No flag Set by EPD/EMS Calcium, total recoverable No flag No flag Set by EPD/EMS Carbofuran //g/L 20 40 Final PDWS (EPA, 1993a) Carbon-14 pCi/L 1E+03 2E+03 Interim Final PDWS (EPA, 1977) Carbonate No flag No flag Set by EPD/EMS Carbon disulfide pg/L 5 10 EPA Method 8240 Carbon tetrachloride //g/L 2.5 5 Final PDWS (EPA, 1993a) Cerium-141c pCi/L 1.5E+02 3E+02 Interim Final PDWS (EPA, 1977) Cerium-144 pCi/L 1.31E+02 2.61 E+02 Proposed PDWS (EPA, 1991) Cesium-134d pCi/L 4.07E+01 8.13E+01 Proposed PDWS (EPA, 1991) Cesium-137 pCi/L 1E+02 2E+02 Interim Final PDWS (EPA, 1977) Chlordane nan. 1 2 Final PDWS (EPA, 1993a) Chloride HQl\- 125,000 250,000 SDWS (EPA, 1993b) 4-Chloroaniline V9/L 50 100 EPA Method 8270 Chlorobenzene non. 50 100 Final PDWS (EPA, 1993a) Chlorobenzilate non. 50 100 EPA Method 8270 4-Chloro-m-cresol mn. 50 100 EPA Method 8270 Chloroethane nan- 5 10 EPA Method 8240 Chloroethene (Vinyl chloride) non- 1 2 Final PDWS (EPA, 1993a) Chloroethyl vinyl ether pgfl- 5 10 EPA Method 8240 2-Chloroethyl vinyl ether nan. 5 10 EPA Method 8240 Chloroform V9>L 50 100 Final PDWS (EPA, 1993a) Chloromethane (Methyl chloride) f>9'L 5 10 EPA Method 8240 2-Chloronaphthalene non. 50 100 EPA Method 8240 2-Chlorophenol pgfl- 50 100 EPA Method 8270 4-Chlorophenyl phenyl ether POfi- 50 100 EPA Method 8270 Chloroprene noft- 1,000 2,000 EPA Method 8240 Chromium non. 50 100 Final PDWS (EPA, 1993a) Chromium, dissolved «/L 50 100 Final PDWS (EPA, 1993a) Chromium, total recoverable PBft- 50 100 Final PDWS (EPA, 1993a) Chromium-51c pCi/L 3E+03 6E+03 Interim Final PDWS (EPA, 1977) Chrysene pg/L 0.1 0.2 Proposed PDWS (EPA, 1990) Cobalt nafl- 20 40 EPA Method 6010 Cobalt, dissolved //g/L 20 40 EPA Method 6010 Cobalt, total recoverable //g/L 20 40 EPA Method 6010 Cobalt-57 pCi/L 5E+02 1E+03 Interim Final PDWS (EPA, 1977) Cobalt-58d pCi/L 4.5E+03 9E+03 Interim Final PDWS (EPA, 1977) Cobalt-60 pCi/L 5E+01 1E+02 Interim Final PDWS (EPA, 1977) Color No flag No flag Set by EPD/EMS Copper pg/L 500 1,000 Final PDWS (SCDHEC. 1981) Copper, dissolved pg/L 500 1,000 Final PDWS (SCDHEC, 1981) Copper, total recoverable //g/L 500 1,000 Final PDWS (SCDHEC, 1981) Corrosivity No flag No flag Set by EPD/EMS m-Cresol (3-Methylphenol) pg/L 50 100 EPA Method 8270 o-Cresol (2-Methylphenol) pgfl- 50 100 EPA Method 8270 p-Cresol (4-Methylphenol) pg/L 50 100 EPA Method 8270 Curium-242 pCi/L 6.65E+01 1.33E+02 Proposed PDWS (EPA, 1991) Curium-243 pCi/L 4.15E+00 8.3E+00 Proposed PDWS (EPA, 1991) Curium-243/244e pCi/L 4.15E+00 8.3E+00 Proposed PDWS (EPA, 1991) Curium-244 pCi/L 4.92E+00 9.84E+00 Proposed PDWS (EPA, 1991) Curium-245/246e pCi/L 3.12E+00 6.23E+00 Proposed PDWS (EPA, 1991)

Metallurgical Laboratory HWMF B-S Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Analyte Unit Flag 1 Flag 2 Source

Curium-246 pCi/L 3.14E+00 6.27E+00 Proposed PDWS (EPA, 1991) Cyanide P9A- 100 200 Final PDWS (EPA, 1993a) b Dalapon A^L 100 200 Final PDWS (EPA, 1993a) p,p'-DDD «fl- 0.5 1 EPA Method 8080 p,p'-DDE A^/L 0.5 1 EPA Method 8080 p,p'-DDT nn. 0.5 1 EPA Method 8080 Diallate nn. 50 100 EPA Method 8270 Dibenz[a,/?]anthracene pgfl- 0.15 0.3 Proposed PDWS (EPA, 1990) Dibenzofuran pgfl- 50 100 EPA Method 8270 Dibromochloromethane «fl- 50 100 Final PDWS (EPA, 1993a) 1,2-Dibromo-3-chloropropane «fl- 0.1 0.2 Final PDWS (EPA, 1993a) 1,2-Dibromoethane mn. 0.025 0.05 Final PDWS (EPA, 1993a) Oibromomethane mn. 5 10 EPA Method 8240 (Methylene bromide) Di-n-butyl phthalate No flag No flag Set by EPD/EMS 1,2-Dichlorobenzene W/L 300 600 Final PDWS (EPA, 1993a) 1,3-Dichlorobenzene ?&. 50 100 EPA Method 8270 1,4-Dichlorobenzene «/L 37.5 75 Final PDWS (EPA, 1993a) 3,3'-Dichlorobenzidine mft- 50 100 EPA Method 8270 trans-1,4-Dichloro-2-butene /•gA. 150 300 EPA Method 8240 Dichlorodifluoromethane ran. 5 10 EPA Method 8240 1,1-Dichloroethane //g/L 5 10 EPA Method 8240 1,2-Dichloroethane /*/L 2.5 5 Final PDWS (EPA, 1993a) 1,1 -Dichloroethy lene P9A- 3.5 7 Final PDWS (EPA, 1993a) 1,2-Dichloroethylene i^g/L 25 50 Final PDWS (EPA, 1993a) cis-1,2-Dichloroethylene «fl- 35 70 Final PDWS (EPA, 1993a) trans-1,2-Dichloroethylene «/L 50 100 Final PDWS (EPA, 1993a) Dichloromethane M/L 2.5 5 Final PDWS (EPA, 1993a) (Methylene chloride) 2,4-Dichlorophenol W/L 50 100 EPA Method 8270 2,6-Dichlorophenol A*g/L 50 100 EPA Method 8270 2,4-Dichlorophenoxyacetic acid «fl- 35 70 Final PDWS (EPA, 1993a) 1,2-Dichloropropane pgfl- 2.5 5 Final PDWS (EPA, 1993a) cis-1,3-Dichloropropene A/g/L 5 10 EPA Method 8240 trans-1,3-Dichloropropene «/L 5 10 EPA Method 8240 Dieldrin pgfl- 2.5 5 EPA Method 8080 Di(2-ethylhexyl) adipate pgfl- 200 400 Final PDWS (EPA, 1993a) Diethyl phthalate No flag No flag Set by EPD/EMS Dimethoate pg/L 50 100 EPA Method 8270 p-Dimethylaminoazobenzene mn- 50 100 EPA Method 8270 p-(Dimethylamino)ethylbenzene pgfl- 50 100 EPA Method 8270 7,12-Dimethylbenz[a]anthracene ««- 50 100 EPA Method 8270 3,3'-Dimethylbenzidine A/g/L 50 100 EPA Method 8270 a.a-Dimethylphenethylamine pgfl- 50 100 EPA Method 8270 2,4-Dimethyl phenol A^/L 50 100 EPA Method 8270 Dimethyl phthalate No flag No flag Set by EPD/EMS 1,3-Dinitrobenzene A#g/L 50 100 EPA Method 8270 2,4-Dinitrophenol A^/L 250 500 EPA Method 8270 2,4-Dinitrotoluene A^/L 50 100 EPA Method 8270 2,6-Dinitrotoluene A/g/L 50 100 EPA Method 8270 Di-n-octyl phthalate No flag No flag Set by EPD/EMS 1,4-Dioxane MA. 50 100 EPA Method 8270 Diphenylamine pg/L 50 100 EPA Method 8270 1,2-Diphenylhydrazine w/L 50 100 EPA Method 8270 Diquat dibromide A/g/L 10 20 Final PDWS (EPA, 1993a)

Metallurgical Laboratory HWMF B-6 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Analvte Unit Flag 1 Flag 2 Source

Dissolved organic carbon nan. 5,000 10,000 EPA Method 9060 Oisulfoton nan. 50 100 EPA Method 8270 Eh No flag No flag Set by EPD/EMS Endosulfan I nan. 0.5 1 EPA Method 8080 Endosulfan II nan. 0.5 1 EPA Method 8080 Endosulfan sulfate A/g/L 0.5 1 EPA Method 8080 Endothallb A^/L 50 100 Final PDWS (EPA, 1993a) Endrin non- 1 2 Final PDWS (EPA, 1993a) Endrin aldehyde nan. 0.5 1 EPA Method 8080 Endrin ketone No flag No flag Set by EPD/EMS Ethylbenzene nan. 350 700 Final PDWS (EPA, 1993a) Ethyl methacrylate nan- 50 100 EPA Method 8270 Ethyl methanesulfonate nan. 50 100 EPA Method 8270 Europium-152 pCi/L 3E+01 6E+01 Interim Final PDWS (EPA, 1977) Europium-154 pCi/L 1E+02 2E+02 Interim Final PDWS (EPA, 1977) Europium-155 pCi/L 3E+02 6E+02 Interim Final PDWS (EPA, 1977) Famphur A/g/L 50 100 EPA Method 8270 Fluoranthene nan. 50 100 EPA Method 8270 Fluorene na'i 50 100 EPA Method 8270 Fluoride VQ'L 2,000 4,000 Final PDWS (EPA, 1993a) Glyphosateb nan. 350 700 Final PDWS (EPA, 1993a) Gross alpha pCi/L 7.5E+00 1.5E+01 Final PDWS (EPA, 1993a) Heptachlor mn. 0.2 0.4 Final PDWS (EPA, 1993a) Heptachlor epoxide na'L 0.1 0.2 Final PDWS (EPA, 1993a) Heptachlorodibenzo-p-dioxin UQl\- 0.00325 0.0065 EPA Method 8280 isomers 1,2,3,4,6,7,8-HPCDD nan. 0.00325 0.0065 EPA Method 8280 Heptachlorodibenzo-p-furan nan- 0.00225 0.0045 EPA Method 8280 isomers 1,2,3,4,6,7,8-HPCDF nan. 0.00225 0.0045 EPA Method 8280 Hexachlorobenzene #/g/L 0.5 1 Final PDWS (EPA, 1993a) Hexachlorobutadiene nan- 50 100 EPA Method 8270 Hexachlorocyclopentadiene nan. 25 50 Final PDWS (EPA, 1993a) Hexachlorodibenzo-p-dioxin nan- 0.00225 0.0045 EPA Method 8280 isomers 1,2,3,4,7,8-HXCDD nan. 0.00225 0.0045 EPA Method 8280 Hexachlorodibenzo-p-furan nan. 0.002 0.004 EPA Method 8280 isomers 1,2,3,4,7,8-HXCDF nan. 0.002 0.004 EPA Method 8280 Hexachloroethane nan. 50 100 EPA Method 8270 Hexachlorophene nan- 250 500 EPA Method 8270 Hexachloropropene nan. 50 100 EPA Method 8270 2-Hexanone nan. 50 100 EPA Method 8240 lndeno[1,2,3-c,d]pyrene nan. 50 100 EPA Method 8270 Iodine nafi 250 500 APHA Method 415A lodine-129 pCi/L 5E-01 1E+00 Interim Final PDWS (EPA, 1977) lodine-131c pCi/L 1.5E+00 3E+00 . Interim Final PDWS (EPA, 1977) lodomethane (Methyl iodide) nan. 75 150 EPA Method 8240 Iron nan. 150 300 SDWS (EPA, 1993b) Iron, dissolved nan. 150 300 SDWS (EPA, 1993b) Iron, total recoverable nan- 150 300 SDWS (EPA, 1993b) lron-55c pCi/L 1E+03 2E+03 Interim Final PDWS (EPA, 1977) lron-59c pCi/L 1E+02 2E+02 Interim Final PDWS (EPA, 1977) Isobutyl alcohol //g/L 500 1,000 EPA Method 8240 Isodrin nan. 50 100 EPA Method 8270

Metallurgical Laboratory HWMF B-7 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Analyte Unit Flag 1 Flag 2 Source

Isophorone //g/L 50 100 EPA Method 8270 Isosafrole //g/L 50 100 EPA Method 8270 Kepone //g/L 50 100 EPA Method 8270 Lanthanum-140c pCi/L 3E+01 6E+01 Interim Final PDWS (EPA, 1977) Lead //g/L 25 50 Final PDWS (SCDHEC, 1981) Lead, dissolved UQli- 25 50 Final PDWS (SCDHEC, 1981) Lead, total recoverable //g/L 25 50 Final PDWS (SCDHEC, 1981) Lead-212 pCi/L 6.2E+01 1.23E+02 Proposed PDWS (EPA, 1991) Lindane //g/L 0.1 0.2 Final PDWS (EPA, 1993a) Lithium //g/L 25 50 EPA Method 6010 Lithium, dissolved mn. 25 50 EPA Method 6010 Lithium, total recoverable mn- 25 50 EPA Method 6010 Magnesium No flag No flag Set by EPD/EMS Magnesium, dissolved No flag No flag Set by EPD/EMS Magnesium, total recoverable No flag No flag Set by EPD/EMS Manganese «A- 25 50 SDWS (EPA, 1993b) Manganese, dissolved //g/L 25 50 SDWS (EPA, 1993b) Manganese, total recoverable pg/L 25 50 SDWS (EPA, 1993b) Manganese-54 pCi/L 1.5E+02 3E+02 Interim Final PDWS (EPA, 1977) Mercury //g/L 1 2 Final PDWS (EPA, 1993a) Mercury, dissolved //g/L 1 2 Final PDWS (EPA, 1993a) Mercury, total recoverable //g/L 1 2 Final PDWS (EPA, 1993a) Methacrylonitrile A/g/L 250 500 EPA Method 8240 Methapyrilene mn. 50 100 EPA Method 8270 Methoxychlor //g/L 20 40 Final PDWS (EPA, 1993a) 3-Methylcholanthrene //g/L 50 100 EPA Method 8270 2-Methyl-4,6-dinitrophenol //g/L 250 500 EPA Method 8270 Methyl ethyl ketone No flag No flag Set by EPD/EMS Methyl isobutyl ketone No flag No flag Set by EPD/EMS Methyl methacrylate //g/L 50 100 EPA Method 8270 Methyl methanesulfonate //g/L 50 100 EPA Method 8270 2-Methylnaphthalene //g/L 50 100 EPA Method 8270 Molybdenum mn. 250 500 EPA Method 6010 Molybdenum, dissolved «fl- 250 500 EPA Method 6010 Molybdenum, total recoverable //g/L 250 500 EPA Method 6010 Naphthalene //g/L 50 100 EPA Method 8270 1,4-Naphthoquinone //g/L 50 100 EPA Method 8270 1-Naphthylamine mn. 50 100 EPA Method 8270 2-Naphthylamine mn. 50 100 EPA Method 8270 Neptunium-237 pCi/L 3.53E+00 7.06E+00 Proposed PDWS (EPA, 1991) Nickel mn- 50 100 Final PDWS (EPA, 1993a) Nickel, dissolved mn. 50 100 Final PDWS (EPA, 1993a) Nickel, total recoverable •mn- 50 100 Final PDWS (EPA, 1993a) Nickel-59c pCi/L 1.5E+02 3E+02 Interim Final PDWS (EPA, 1977) Nickel-63c pCi/L 2.5E+01 5E+01 Interim Final PDWS (EPA, 1977) Niobium-95c pCi/L 1.5E+02 3.E+02 Interim Final PDWS (EPA, 1977) Nitrate as nitrogen //g/L 5,000 10,000 Final PDWS (EPA, 1993a) Nitrate-nitrite as nitrogen //g/L 5,000 10,000 Final PDWS (EPA, 1993a) Nitrite as nitrogen pgfl- 500 1,000 Final PDWS (EPA, 1993a) m-Nitroaniline //g/L 50 100 EPA Method 8270 o-Nitroaniline //g/L 50 100 EPA Method 8270 p-Nitroaniiine //g/L 50 100 EPA Method 8270 Nitrobenzene //g/L 50 100 EPA Method 8270 Nitrogen by Kjeldahl method //g/L 500 1,000 EPA Method 351.2 2-Nitrophenol //g/L 50 100 EPA Method 8270

Metallurgical Laboratory HWMF 6-8 Fourth Quarter 1994 and 1994 Summary WSRC.TR-94-0615 Unclassified

Analvte Unit Flaq 1 Flaq 2 Source

4-Nitrophenol pg/L 50 100 EPA Method 8270 4-Nitroquinoline-1 -oxide pg/L 50 100 EPA Method 8270 N-Nitrosodi-n-butylamine pg/L 50 100 EPA Method 8270 N-Nitrosodiethylamine pg/L 50 100 EPA Method 8270 N-Nitrosodimethylamine pg/L 50 100 EPA Method 8270 N-Nitrosodiphenylamine nan. 50 100 EPA Method 8270 N-Nitrosodipropylamine nan. 50 100 EPA Method 8270 N-Nitrosomethylethylamine pg/L 50 100 EPA Method 8270 N-Nitrosomorpholine mft- 50 100 EPA Method 8270 N-Nitrosopiperidine mn. 50 100 EPA Method 8270 N-Nitrosopyrrolidine pg/L 50 100 EPA Method 8270 5-Nitro-o-toluidine pg/L 50 100 EPA Method 8270 Nonvolatile beta pCi/L 2.5E+01 5E+01 Interim Final PDWS (EPA, 1977) Octachlorodibenzo-p-dioxin pg/L 0.005 0.01 EPA Method 8280 isomers Octachlorodibenzo-p-furan nan.. 0.005 0.01 EPA Method 8280 isomers Odor No flag No flag Set by EPD/EMS Oil & Grease nan. 5,000 10,000 EPA Method 413.1 Oxamylb nan. 100 200 Final PDWS (EPA, 1993a) Parathion pg/L 0.25 0.5 EPA Method 8080 Parathion methyl nan. 0.25 0.5 EPA Method 8080 PCB 1016 pg/L 0.25 0.5 Final PDWS (EPA, 1993a) PCB 1221 ng'L 0.25 0.5 Final PDWS (EPA, 1993a) PCB 1232 //g/L 0.25 0.5 Final PDWS (EPA, 1993a) PCB 1242 pg/L 0.25 0.5 Final PDWS (EPA, 1993a) PCB 1248 nan. 0.25 0.5 Final PDWS (EPA, 1993a) PCB 1254 nan. 0.25 0.5 Final PDWS (EPA, 1993a) PCB 1260 na'L 0.25 0.5 Final PDWS (EPA, 1993a) PCB 1262 na'i 0.25 0.5 Final PDWS (EPA, 1993a) Pentachlorobenzene pg/L 50 100 EPA Method 8270 Pentachlorodibenzo-p-dioxin nan. 0.00275 0.0055 EPA Method 8280 isomers 1,2,3,7,8-PCDD nan. 0.00275 0.0055 EPA Method 8280 Pentachlorodibenzo-p-furan nan- 0.00275 0.0055 EPA Method 8280 isomers 1,2,3,7,8-PCDF nan. 0.00275 0.0055 EPA Method 8280 Pentachloroethane nan. 50 100 EPA Method 8270 Pentachloronitrobenzene pg/L 50 100 EPA Method 8270 Pentachlorophenol pg/L 0.5 1 Final PDWS (EPA, 1993a) pH PH 8 10 Set by EPD/EMS PH PH 4 3 Set by EPD/EMS Phenacetin pg/t- 50 100 EPA Method 8270 Phenanthrene pg/L 50 100 EPA Method 8270 Phenol pg/L 50 100 EPA Method 8270 Phenols pg/L 25 50 EPA Method 420.1 p-Phenylenediamine pg/i- 50 100 EPA Method 8270 Phorate pg/L 0.5 1 EPA Method 8080 Picloram pg/L 250 500 Final PDWS (EPA, 1993a) 2-Picoline pg/L 50 100 EPA Method 8270 -238 pCi/L 3.51 E+00 7.02E+00 Proposed PDWS (EPA, 1991) Plutonium-239 pCi/L 3.11E+01 6.21 E+01 Proposed PDWS (EPA, 1991) Plutonium-239/240e pCi/L 3.11E+01 6.21 E+01 Proposed PDWS (EPA, 1991) Plutonium-240 pCi/L 3.11E+01 6.22E+01 Proposed PDWS (EPA, 1991) Plutonium-241c pCi/L 3.13E+01 6.26E+01 Proposed PDWS (EPA, 1991)

Metallurgical Laboratory HWMF B-9 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Analyte Unit Flag 1 Flag 2 Source

Plutonium-242c pCi/L 3.27E+01 6.54E+01 Proposed PDWS (EPA, 1991) Potassium No flag No flag Set by EPD/EMS Potassium, dissolved No flag No flag Set by EPD/EMS Potassium, total recoverable No flag No flag Set by EPD/EMS Potassium-40 pCi/L 1.5E+02 3E+02 Proposed PDWS (EPA, 1986) Promethium-144 pCi/L 5E+01 1E+02 EPA Method 901.1 Promethium-146 pCi/L 5E+01 1E+02 EPA Method 901.1 Promethium-147 pCi/L 2.62E+03 5.24E+03 Proposed PDWS (EPA, 1991) Pronamid mn. 50 100 EPA Method 8270 Propionitrile //g/L 1,000 2,000 EPA Method 8240 Pyrene HQlL 50 100 EPA Method 8270 Pyridine miL 50 100 EPA Method 8270 Radium (alpha-emitting)f pCi/L 1E+01 2E+01 Proposed PDWS (EPA, 1991) Radium-226 pCi/L 1E+01 2E+01 Proposed PDWS (EPA, 1991) Radium-228 pCi/L 1E+01 2E+01 Proposed PDWS (EPA, 1991) Radon-222 pCi/L 1.5E+02 3E+02 Proposed PDWS (EPA, 1991) Ruthenium-103c pCi/L 1E+02 2E+02 Interim Final PDWS (EPA, 1977) Ruthenium-106 pCi/L 1.5E+01 3E+01 Interim Final PDWS (EPA, 1977) Safrole A/g/L 50 100 EPA Method 8270 Selenium V9/L 25 50 Final PDWS (EPA, 1993a) Selenium, dissolved pgrt. 25 50 Final PDWS (EPA, 1993a) Selenium, total recoverable «/L 25 50 Final PDWS (EPA, 1993a) Silica No flag No flag Set by EPD/EMS Silica, dissolved No flag No flag Set by EPD/EMS Silica, total recoverable No flag No flag Set by EPD/EMS Silver //g/L 50 100 SDWS (EPA, 1993b) Silver, dissolved ngn. 50 100 SDWS (EPA, 1993b) Silver, total recoverable fon. 50 100 SDWS (EPA, 1993b) Simazineb pgA. 2 4 Final PDWS (EPA, 1993a) Sodium No flag No flag Set by EPD/EMS Sodium, dissolved No flag No flag Set by EPD/EMS Sodium, total recoverable No flag No flag Set by EPD/EMS Sodium-22 pCi/L 2.33E+02 4.66E+02 Proposed PDWS (EPA, 1991) Specific conductance //S/cm 250 500 Set by EPD/EMS Strontium-89 pCi/L 1E+01 2E+01 Interim Final PDWS (EPA, 1977) Strontium-89/90e pCi/L 4E+00 8E+00 Final PDWS (EPA, 1993a) Strontium-90 pCi/L 4E+00 8E+00 Final PDWS (EPA, 1993a) Styrene miL 50 100 Final PDWS (EPA, 1993a) Sulfate ngfl- 200,000 400,000 Proposed PDWS (EPA, 1990) Sulfide pgfl- 5,000 10,000 EPA Method 9030 Sulfotepp pgfl- 50 100 EPA Method 8270 Surfactants No flag No flag Set by EPD/EMS 2,3,7,8-TCDD pgfl- 0.000015 0.00003 Final PDWS (EPA, 1993a) 2,3,7,8-TCDF pgfl- 0.002 0.004 EPA Method 8280 Technetium-99 pCi/L 4.5E+02 9E+02 Interim Final PDWS (EPA, 1977) 1,2,4,5-Tetrachlorobenzene ngfl- 50 100 EPA Method 8270 Tetrachlorodibenzo-p-dioxin «/L 0.00225 0.0045 EPA Method 8280 isomers Tetrachlorodibenzo-p-furan //g/L 0.002 0.004 EPA Method 8280 isomers 1,1,1,2-Tetrachloroethane pg/L 5 10 .EPA Method 8240 1,1,2,2-Tetrachloroethane pgfl- 5 10 EPA Method 8240 Tetrachloroethylene pg/L 2.5 5 Final PDWS (EPA, 1993a) 2,3,4,6-Tetrachlorophenol */g/L 50 100 EPA Method 8270 Thallium //g/L 1 2 Final PDWS (EPA, 1993a)

Metallurgical Laboratory HWMF B-10 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Analyte Unit Flag 1 Flag 2 Source

Thallium, dissolved Final PDWS (EPA, 1993a) Thallium, total recoverable Final PDWS (EPA, 1993a) Thionazin //g/L 50 100 EPA Method 8270 -228 pCi/L 6.25E+01 1.25E+02 Proposed PDWS (EPA, 1991) Thorium-230 pCi/L 3.96E+01 7.92E+01 Proposed PDWS (EPA, 1991) Thorium-232 pCi/L 4.4E+01 8.8E+01 Proposed PDWS (EPA, 1991) Thorium-234 pCi/L 2E+02 4.01 E+02 Proposed PDWS (EPA, 1991) Tin //g/L 10 20 EPA Method 282.2 Tin, dissolved HQll 10 20 EPA Method 282.2 Tin, total recoverable A/g/L 10 20 EPA Method 282.2 Tin-113c pCi/L 1.5E+02 3E+02 Interim Final PDWS (EPA, 1977) Toluene HQl\- 500 1,000 Final PDWS (EPA, 1993a) o-Toiuidine mn- 50 100 EPA Method 8270 Total carbon pg/L 5,000 10,000 EPA Method 9060 Total coliform 0 0 Final PDWS (EPA, 1993a) Total dissolved solids No flag No flag Set by EPD/EMS Total hydrocarbons /^/L 5,000 10,000 EPA Method 418.1 Total inorganic carbon //g/L 5,000 10,000 EPA Method 9060 Total organic carbon HQfL 5,000 10,000 EPA Method 9060 Total organic halogens P9'L 25 50 EPA Method 9020 Total organic nitrogen WH- 500 1,000 APHA Method 420 Total petroleum hydrocarbons t&L 5,000 10,000 EPA Method 418.1 Total phosphates (as P) No flag No flag Set by EPD/EMS Total phosphorus No flag No flag Set by EPD/EMS Toxaphene //g/L 1.5 3 Final PDWS (EPA, 1993a) 2,4,5-TP (Silvex) A^/L 25 50 Final PDWS (EPA, 1993a) Tributyl phosphate A/g/L 50 100 EPA Method 8270 1,2,4-Trichlorobenzene l^/L 35 70 Final PDWS (EPA, 1993a) 1,1,1 -Trichloroethane A/g/L 100 200 Final PDWS (EPA, 1993a) 1,1,2-Trichloroethane //g/L 2.5 5 Final PDWS (EPA, 1993a) Trichloroethylene //g/L 2.5 5 Final PDWS (EPA, 1993a) Trichlorofluoromethane ngfi 5 10 EPA Method 8240 2,4,5-Trichlorophenol W/L 50 100 EPA Method 8270 2,4,6-Trichlorophenol fgii 50 100 EPA Method 8270 2,4,5-Trichlorophenoxyacetic acid VQIL 2.5 5 EPA Method 8150 1,2,3-Trichloropropane A/g/L 5 10 EPA Method 8240 0,0,0-Triethyl phosphorothioate vgfL 50 100 EPA Method 8270 1,3,5-Trinitrobenzene A/g/L 50 100 EPA Method 8270 Tritium pCi/mL 1E+01 2E+01 Final PDWS (EPA, 1993a) Turbidity9 No flag No flag Set by EPD/EMS Uranium A/g/L 10 20 Proposed PDWS (EPA, 1991) Uranium, dissolved pg/L 10 20 Proposed PDWS (EPA, 1991) Uranium, total recoverable A/g/L 10 20 Proposed PDWS (EPA, 1991) Uranium alpha activity pCi/L 1.5E+01 3E+01 Proposed PDWS (EPA, 1991) Uranium-233/234e pCi/L 6.9E+00 1.38E+01 Proposed PDWS (EPA, 1991) Uranium-234 pCi/L 6.95E+00 1.39E+01 Proposed PDWS (EPA, 1991) Uranium-235 pCi/L 7.25E+00 1.45E+01 Proposed PDWS (EPA, 1991) Uranium-238 pCi/L 7.3E+00 1.46E+01 Proposed PDWS (EPA, 1991) Vanadium A^/L 40 80 EPA Method 6010 Vanadium, dissolved M/L 40 80 EPA Method 6010 Vanadium, total recoverable A/g/L 40 80 EPA Method 6010 Vinyl acetate A^/L 5 10 EPA Method 8240

Metallurgical Laboratory HWMF B-11 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Analyte Unit Flag 1 Flag 2 Source

Xylenes ng/L 5,000 10,000 Final PDWS (EPA, 1993a) Yttrium-88 pCi/L 5E+01 1E+02 EPA Method 901,1 Zinc ng/L 2,500 5,000 SDWS(EPA, 1993b) Zinc, dissolved pg/L 2,500 5,000 SDWS (EPA, 1993b) Zinc, total recoverable pg/L 2,500 5,000 SDWS (EPA, 1993b) Zinc-65 pCi/L 1.5E+02 3E+02 Interim Final PDWS (EPA, 1977) Zirconium-95c pCi/L 1E+02 2E+02 Interim Final PDWS (EPA, 1977) Zirconium/Niobium-95c pCi/L 1E+02 2E+02 Interim Final PDWS (EPA, 1977)

a References for methods are in Appendix E; references for dated sources are at the end of this appendix. b EMS is currently unable to perform this analysis. c EMS discontinued monitoring this radionuclide because it is inappropriate for the SRS Groundwater Monitoring Program. d EPD/EMS set this flagging criterion using the 1991 proposed PDWS because the final PDWS in 1977 may have been in error. e For double radionuclide analyses where each separate radionuclide has its own standard, the more stringent standard is used. f The applied standard is for radium-226. 9 The primary maximum contaminant level range for turbidity is 1-5 NTU, which is inappropriate for the SRS Groundwater Monitoring Program. References Cited

EPA (U.S. Environmental Protection Agency), 1977. National Interim Primary Drinking Water Regulations, EPA-570/9-76-003. Washington, DC.

EPA (U.S. Environmental Protection Agency), 1986. Water Pollution Control; National Primary Drinking Water Regulations, Radionuclides (Proposed). Federal Register, September 30, 1986, pp. 34835-34862. Washington, DC.

EPA (U.S. Environmental Protection Agency), 1990. National Primary and Secondary Drinking Water Regulations; Synthetic Organic Chemicals and Inorganic Chemicals (Proposed Rule). Federal Register, July 25, 1990, pp. 30369-30448. Washington, DC.

EPA (U.S. Environmental Protection Agency), 1991. National Primary Drinking Water Regulations; Radionuclides; Proposed Rule. Federal Register, July 18, 1991, pp. 33052-33127. Washington, DC.

EPA (U.S. Environmental Protection Agency), 1993a. National Primary Drinking Water Regulations. Code of Federal Regulations, Title 40, Part 141, pp. 592-732. Washington, DC.

EPA (U.S. Environmental Protection Agency), 1993b. National Secondary Drinking Water Regulations. Code of Federal Regulations, Title 40, Part 143, pp. 774-777. Washington, DC.

SCDHEC (South Carolina Department of Health and Environmental Control), 1981. State Primary Drinking Water Regulations, R.61-58.5. Columbia, SC.

Metallurgical Laboratory HWMF B-12 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Appendix C

Figures

Metallurgical Laboratory HWMF C-1 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF C-2 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

SOUTH CAROLINA Savannah River Site - Boundary

B Metallurgical V Laboratory ^ 3690000 UTM N 1* HWMF >^

- 3S20,00" N A/M AREAS Creak 'Y AREA •Z AREA E AREA •S AREA F AREA B AREA H/-AREA 'Par .Pond R AREA

<#

C AREA N AREA P AREA

, T (TNX) AREA L AREA K AREA 'D AREA.57

fij

«- 3B70000 UTM N .<£ X, iaJfcel w\

CNi

GEORGW

Three

Scale in miles i" L _E 3 0 0= Scale in kilometers § i i—i i—r_ E~

CO _JL i_i

Figure 1. Location of the Metallurgical Laboratory HWMF at the Savannah River Site

Metallurgical Laboratory HWMF C-3 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

i I

! s

CL IB

0> U

3 0)

ic4

Metallurgical Laboratory HWMF C-4 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

I

5 S I

3689100 UTU N

Process Sewer Line -Metallurgical Laboratory 3?20'25"N — AMB 4D ^ Seepage Basin 233.88 * AMB 5t2> 234.30 , U AMB 6 234.45 AMB 12D 235.47

3688900 UTU N -

AMB 110 236.86

3T20'15"N —

3688700 UTM N -

Metallurgical Laboratory HWMF Notes Legend

t Well designated as MGCL. Monitoring well Piezometric Surface mB gD ond woter elevotion & M—Area (ft msl) 234.79 Aquifer Zone 4Q94 Horizontal groundwater Scole in feet r "E flow direction 200 0 200 Prepared by: livV', Approved by: ^ ^^ Scole in meters Contour interval = 0.5 ft Dote: ±p*/

Figure 3. Piezometric Surface Map and Location of the M-Area Aquifer Zone Wells at the Metallurgical Laboratory HWMF

Metallurgical Laboratory HWMF C-5 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Metallurgical Laboratory HWMF Notes Legend

Water Elevation At least three data points are required Upper Lost Lake for piezometric contouring. Aquifer Zone Monitoring well AMB 11B ond woter elevotion A 4Q94 Scale in feet (ft msl) 223.62 20c0 0 200 Prepared by: fj.W'l Approved by: p^^ Scole in meters I H H r- Date: JTJUAC- Dote:M#2£ 50 0 50

Figure 4. Water-Elevation Map and Location of Monitoring Wells in the Upper Lost Lake Aquifer Zone at the Metallurgical Laboratory HWMF

Metallurgical Laboratory HWMF C-6 Fourth Quarter 1994 and 1994 Summary WSRC-TR-944615 Unclassified

Metallurgical Laboratory HWMF Notes Legend Potentiometric surface connot be reliably contoured due to low Water Elevations horizontal gradients ond neor linear Lower Lost Lake distribution of monitoring wells. Aquifer Zone Monitoring well AMB 10B ond water elevation ^ 4Q94 m Scole in feet (" sl) 223.75 ^E 20r0 0 200 Prepored byT-: ;it- - , Approved by: Scole in meters t-t HH r- Dote-g^/fr Dote: t/tOA6 50

Figure 5. Water-Elevation Map and Location of Monitoring Wells in the Lower Lost Lake Aquifer Zone at the Metallurgical Laboratory HWMF

Metallurgical Laboratory HWMF C-7 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

8 «

3689100UTUN

-Metallurgical Laboratory Seepage Basin 3S20'25"N —

3688900 UTM N -

3X20'15"N

3688700 UTU N -

Metallurgical Laboratory HWMF Notes Legend Potentiometric surface eonnot be reliably contoured due to low Water Elevations horizontal gradients and near linear Middle Sand distribution of monitoring wells. Aquifer Zone Monitoring well AMB 7A and water elevation A 4Q94 (ft msl) 219.78 Seole in feet HH: 20i0 H-i, 0 200 Prepared by: proved by: 1M± Scale in meters Date: Mri/foAs _E 50 so

Figure 6. Water-Elevation Map and Location of Monitoring Wells in the Middle Sand Aquifer Zone of the Crouch Branch Confining Unit at the Metallurgical Laboratory HWMF

Metallurgical Laboratory HWMF C-8 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

FLORIDAN-MIDVILLE AQUIFER SYSTEM

STEED POND CROUCH BRANCH AQUIFER CONFINING UNIT

c o c a> o 1/1/1 c N CO o 3 N CT (U D a: in 3 < o o I D I

££ Id UJ U. u. O O< < X X o o 2 2 < m m

x UJ o LJ ID o O cc o _..t_ka_j_ (J 2

o -o c 3 STEED POND AQUIFER o CD

Q> .C o 01 2 to

HOLLOW CREEK AQUIFER

^

Figure 7. Hydrostratigraphy of A/M Areas

Metallurgical Laboratory HWMF C-9 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF C-10 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Appendix D

Groundwater Monitoring Results Tables

Metallurgical Laboratory HWMF D-1 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONAUY.

Metallurgical Laboratory HWMF 0-2 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Key to Reading the Tables

The following abbreviations may appear in the data tables:

Constituents

1,2,3,4,6,7,8-HPCDD 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin 1,2,3,4,6,7,8-HPCDF 1,2,3,4,6,7,8-heptachlorodibenzo-p-furan 1,2,3,4,7,8-HXCDD 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin 1,2,3,4,7,8-HXCDF 1,2,3,4,7,8-hexachlorodibenzo-p-furan Lindane gamma-benzene hexachloride PCB polychlorinated biphenyl 1,2,3,7,8-PCDD 1,2,3,7,8-pentachlorodibenzo-p-dioxin 1,2,3,7,8-PCDF 1,2,3,7,8-pentachlorodibenzo-p-furan Sp. conductance specific conductance TCDD tetrachlorodibenzo-p-dioxin TCDF tetrachlorodibenzo-p-furan

Laboratories

CN Clemson Technical Center, Inc. EM Environmental Protection Department/Environmental Monitoring Section (EPD/EMS) Laboratory GE and GP General Engineering Laboratories SC Savannah River Technology Center SP Spencer Testing Services, Inc. TM TMA/Eberline WA and WS Roy F. Weston, Inc.

Miscellaneous

CS carbon steel DF dilution factor column in data tables H holding time column in data tables Mod modifier column in data tables PDWS primary drinking water standard PVC polyvinyl chloride ST exceeded standard column in data tables SZ screen zone column in data tables TOC top of casing

Nomenclature

AZ Aquifer Zone Crouch Branch AZ previously Black Creek • CBA Crouch Branch Aquifer • CBCorCBCU Crouch Branch Confining Unit • LCBC Lost Lake AZ - CBCU CZ Confining Zone

Metallurgical Laboratory HWMF D-3 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Nomenclature (cont.)

Lower Lost Lake AZ previously Lower Congaree • L Lost Lake (Undifferentiated) AZ • LL Lower Lost Lake AZ • (LL)L/MCBC Lower Lost Lake/Middle Sand AZ of the CBCU M-Area AZ previously Water Table • GC Green Clay CZ • GCL Green Clay - Lost Lake • M M-Area AZ • MGC M-Area AZ - Green Clay CZ Middle Sand AZ of the CBGU previously Ellenton Sand • MCBC Middle Sand AZ of the CBCU Upper Lost Lake AZ previously Upper Congaree • UL Upper Lost Lake AZ Miscellaneous Nomenclature • MGCL M-Area AZ - Green Clay CZ - Lost Lake AZ • UD Undifferentiated • VZ Vadose Zone

npli ng Codes

B blank sample was collected C well was pumping continuously D well was dry E equipment blank was collected I well went dry during sampling; insufficient water to collect all samples L well went dry before sampling began; only depth to water can be determined P inaccessibility or mechanical failure prevented sample collection and field analysis of the water S no water in standpipe; for water-level events only X well went dry during purging; samples collected after well recovered

Sampling Methods

B sample collected using an open-bucket bailer P sample collected using a bladder pump S sample collected using a single-speed centrifugal downhole pump V sample collected using a variable-speed pump

Units

E exponential notation (e.g., 1.1E-09 = 1.1 x 10~9 0.0000000011) mg/L milligrams per liter msl mean sea level MSL million structures per liter NTU nephelometric turbidity unit

Metallurgical Laboratory HWMF D-4 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Units (cont.)

pCi/L picocuries per liter pCi/mL picocuries per milliliter pH pH unit ftglL micrograms per liter //S/cm microsiemens per centimeter

Holding Times

Standard analytical methods include a limit, called holding time, on the maximum elapsed time between sample collection and extraction or analysis by the laboratory. In the data tables, a large bullet (•) in the H (holding time) column indicates that holding time was exceeded. Anal• yses performed beyond holding times may not yield valid results.

The South Carolina Department of Health and Environmental Control allows only 15 minutes to elapse between sampling and analysis for pH. Thus, only field pH measurements can meet the holding time criterion; laboratory pH analyses always will exceed it.

The laboratory procedure used for the determination of specific conductance allows one day to elapse between sampling and analysis. Thus, laboratory specific conductance measurements may exceed the holding time criterion.

Data Rounding

Constituent results in analytical results tables that appear to equal the final PDWS but are not marked in the ST (exceeded the final PDWS or screening level) column are below the final PDWS in the database. Values stored in the database contain more significant digits than the reported results. Apparent discrepancies in the tables are due to the rounding of reported results.

Data Qualification

The contract laboratories continually assess their own accuracy and precision according to U.S. Environmental Protection Agency (EPA) guidelines. They submit sample- or batch-specific qual• ity assurance/quality control information either at the same time as analytical results or in a quar• terly summary. Properly defined and used result modifiers (also referred to as qualifiers) can be a key component in assessing data usability. Result modifiers designed by the EPD/EMS and provided to the primary laboratories are defined below. These modifiers appear in the data tables under the column Mod. The lettered modifiers are based on EPA's STORET codes.

Result Modifiers

(Blank) Data are not qualified. Numbers should be interpreted exactly as reported.

I The value in the result field is the instrument reading, not the sample quantification limit. Always used with the result qualifier U.

J Value is estimated because quantitation in the sample or in associated quality control samples did not meet specifications.

Metallurgical Laboratory HWNIF D-5 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Result Modifiers

L Value is off-scale high. The actual value is not known but is known to be greater than the value shown.

M Presence of the analyte is verified but not quantified.

R Result was rejected because performance requirements in the sample

analysis or associated quality control analyses were not met.

T Analyte was not detected; if present, it was below the criteria for detection.

U Material analyzed for but not detected. Analytical result reported is less than the sample quantitation limit. V Analyte was detected in an associated method blank. Y Result was obtained from an unpreserved or improperly preserved sample. Data may not be accurate.

1 Result may be an underestimation of the true value due to analytical bias.

2 Result may be an overestimation of the true value due to analytical bias.

3 The associated result may be of poor precision (high variability) due to analytical bias.

4 Result is associated with QA results indicating matrix interference.

6 The associated result is from a reanalysis performed out of holding time due to problems with an earlier analysis.

Metallurgical Laboratory HWMF D-6 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Table 1. Maximum Levels of Constituents Exceeding the Final Primary Drinking Water Standards

M-Area Aquifer Zone

Well Constituent Unit 1Q94 2Q94 3Q94 4Q94 Mod

AMB 4D Tetrachloroethylene nan. 5.5 _a — 10 Trichloroethylene nan.. 83 62 66 135

AMB 5 Tetrachloroethylene //g/L 7.9 — — — Trichloroethylene //g/L 111 39 60 40 Gross alpha pCi/L 2.5E+01 NAb — NA

AMB 6 Lead //g/L 57 NA _ NA Trichloroethylene //g/L 10 8.4 7.9 7.2

AMB 7 Bis(2-ethylhexyl) phthalate //g/L NA NA 21 NA

Upper Lost Lake Aquifer Zone

Well Constituent Unit 1Q94 2Q94 3Q94 4Q94 Mod

Nc None N N N N

Lower Lost Lake Aquifer Zone

Well Constituent Unit 1Q94 2Q94 3Q94 4Q94 Mod

AMB 4B Trichloroethylene //g/L - 5.2 - -

Middle Sand Aquifer Zone of the CBCU

Well Constituent Unit 1Q94 2Q94 3Q94 4Q94 Mod

AMB 4A Tetrachloroethylene //g/L 35 58 _ 43 Trichloroethylene //g/L 429 600 403 523

AMB 7A Tetrachloroethylene //g/L 12 15 17 16 Trichloroethylene //g/L 250 320 331 200

Notes: The modifier column applies to fourth quarter 1994 data only. The groundwater samples are unftltered. Thus, the results for metals are for total recoverable metals. a - = analyzed but not above the final PDWS. b NA = not analyzed. c N = not applicable.

Metallurgical Laboratory HWMF D-7 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Table 2. Maximum Levels of Constituents Exceeding Other Flag 2 Criteria

M-Area Aquifer Zone

Well Constituent Unit 4Q94 Mod

AMB 4D Total organic halogens //g/L 96

Upper Lost Lake Aquifer Zone

Well Constituent Unit 4Q94 Mod

Na None N

Lower Lost Lake Aquifer Zone

Well Constituent Unit 4Q94 Mod

N None N

Middle Sand Aquifer Zone of the CBCU

Well Constituent Unit 4Q94 Mod

AMB 4A Total organic halogens pg/L 156

AMB 7A Total organic halogens /»g/L 144

Notes: These results do not include field data. The groundwater samples are unfiltered. Thus, the results for metals are for total recoverable metals. Flags are established by EPD/EMS and are based on final PDWS, Secondary Drinking Water Standards, or method detection limits (see Appendix B). a N = not applicable.

Metallurgical Laboratory HWMF D-8 Fourth Quarter 1994and 1994 Summary WSRC-TR-94-0615 Unclassified

Table 3. Groundwater Monitoring Results for Individual Wells WELLAMB 4A

SRS Coord. Lat/Lonaitude Screen Zone Elevation Too of Casino Casing Pump Screen Zone

N104131.6 33.340041 °N 126.3-121.3 ft msl 380.5 ft msl 4"PVC S MCBC E51469.8 81.733589 °W

SAMPLE DATE 02/01/94 05/04/94 07/27/94 10/26/94

FIELD DATA

Analvte 1Q94 2094 3094 4Q94 Unit

Water elevation 219.1 220.2 220.2 220.7 ft msl Depth to water 161.4 160.3 160.3 159.8 ft PH 6.6 6.6 6.1 6.4 PH Sp. conductance 48 48 49 44 A/S/cm Water temperature 18.1 18.9 19.5 19.2 °C

Alkalinity as CaC03 12 7 8 12 mg/L Turbidity 1 1 2 2 NTU Volume purged 2.6 2.9 2.8 2.7 well vol. Sampling code

ANALYTICAL DATA

H ST Analvte 1Q94 2094 3Q94 4Q94 DF Mod Unit Lab Flag

Aluminum, total recoverable <20 <20 vgl\- Barium, total recoverable 5.1 pgll Benzene <10 <10 <25 <25 25 /t/g/L GE 0 Bromodichloro methane <10 <10 <25 <25 25 A/g/L GE 0 Bromoform <10 <10 <25 <25 25 VQll GE 0 Bromomethane (Methyl bromide) <10 <10 <25 <25 25 ug/>- GE 0 Cadmium, total recoverable <2.0 eg/I Carbon tetrachloride <10 <10 <25 <25 25 //g/L GE 0 Chloride 1,950 1,380 1 A/g/L GE 0 Chlorobenzene <10 <10 <25 <25 25 ugli GE 0 Chloroethane <10 <10 <25 <25 25 pgii GE 0 Chloroethene (Vinyl chloride) <10 <10 <25 <25 25 //g/L GE 0 2-Chloroethyl vinyl ether <10 <10 <25 <25 25 ug/i GE 0 Chloroform <10 <10 <25 <25 25 ng/L GE 0 Chloromethane (Methyl chloride) <10 <10 <25 <25 25 //g/L GE 0 Cobalt, total recoverable <4.0 A/g/L Copper, total recoverable <4.0 A/g/L Cyanide <5.0 <5.0 <5.0 1 A/g/L GE 0 Dibromochloromethane <10 <10 <25 <25 25 //g/L GE 0 1,1 -Dichloroethane <10 <10 <25 <25 25 A/g/L GE 0 1,2-Dichloroethane <10 <10 <25 <25 25 A/g/L GE 0 1,1 -Dichloroethylene <10 <10 <25 <25 25 ngii GE 0 trans-1,2-Dichloroethylene <10 <10 <25 <25 25 A/g/L GE 0 Dichloromethane <10 <10 <25 <25 25 W/L GE 0 1,2-Dichloropropane <10 <10 <25 <25 25 A/g/L GE 0 cis-1,3-Dichloropropene <10 <10 <25 <25 25 A/g/L GE 0 trans-1,3-Dichloropropene <10 <10 <25 <25 25 //g/L GE 0 Ethylbenzene <10 <10 <25 <25 25 /vg/L GE 0 Fluoride <100 <20 1 A/g/L GE 0 Gross alpha 5.1E-01 9.0E-02 pCi/L Iron, total recoverable 5.7 6.2 //g/L Lead, total recoverable <3.0 <3.0 A/g/L Manganese, total recoverable 7.4 7.9 A/g/L Nickel, total recoverable <4.0 <4.0 <4.0 1 A/g/L GE Nitrate-nitrite as nitrogen 960 959 785 1 pg/i GE Nonvolatile beta 5.0E-01 pCi/L Radium, total alpha-emitting 6.0E-01 <0.0E + 00 1.0E-01 1.2E+00 1 J pCi/L GP Selenium, total recoverable <2.0 A/g/L Silver, total recoverable <2.0 <2.0 1 A/g/L GE 1,1,2,2-Tetrachloroethane <10 <10 <25 <25 25 A/g/L GE

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-9 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 4A continued

ANALYTICAL DATA

H ST Analyte 1Q94 2Q94 3Q94 4094 DF Mod Unit Lab Fl

• Tetrachloroethylene 35 58 <25 43 25 «|/L GE 2 Toluene <10 <10 <25 <25 25 fan GE 0 Total organic carbon <1,000 < 1,000 < 1,000 <1,000 1 ng/i GE 0 Total organic halogens 190 190 160 156 1 mil GE 2 1,1,1 -Trichloroethane <10 <10 <25 <25 25 ^g/L GE 0 1,1,2-Trichloroethane <10 <10 <25 <25 25 //g/L GE 0 • Trichloroethylene 429 600 403 523 25 ngi\- GE 2 Trichlorofluoro methane <10 <10 <25 <25 25 jwg/L GE 0 Zinc, total recoverable 14 ngn.

WELL AMB 4B

SRS Coord. Lat/Lonoitude Screen Zone Elevation Top of Casing Casing Pump Screen Zone

N104145.6 33.340093 °N 157.3-152.3 ft msl 380.4 ft msl 4" PVC S LL E51482.7 81.733582 °W

SAMPLE DATE 02/12/94 04/22/94 08/22/94 10/27/94

FIELD DATA

Analvte 1Q94 2094 3094 4094 Unit

Water elevation 225.1 22S.O ft msl Depth to water 155.3 155.4 ft pH 5.1 4.7 pH Sp. conductance 31 29 //S/cm Water temperature 18.4 18.9 °C

Alkalinity as CaC03 1 0 mg/L Turbidity 0 1 NTU Volume purged 3.7 4.7 well vol. Sampling code

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3Q94 4Q94 DF Mod Unit Lab Flag

Aluminum, total recoverable 31 32 Barium, total recoverable 6.7 W l Benzene <1.0 <1.G <1.0 <1.0 1 ^g/L GE 0 Bromodichloromethane <1.0 <1.0 <1.0 <1.0 1 ng/L GE 0 BromOform <1.0 <1.0 <1.0 <1.0 1 vgli GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Cadmium, total recoverable <2.0 //g/L Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 vg/i GE 0 Chloride 4,060 3,780 1 //g/L GE 0 Chlorobenzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 1 GE 0 Cobalt, total recoverable <4.0

Copper, total recoverable <4.0 m Cyanide <5.0 <5.0 <5.0 1 //g/L GE 0 Dibromochloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1 -Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1 -Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 ugli GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 cis-1,3-DichloropTopene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-10 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 4B continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3Q94 4Q94 DF Mod Unit Lab Fj.

trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Ethylbenzene <1.0 <1.0 <1.0 <1.0 1 «3/L GE 0 Fluoride <100 36 1 J //g/L GE 0 Gross alpha 1.9E+00 1.1E + 00 pCi/L Iron, total recoverable 4.3 12 //g/L Lead, total recoverable <3.0 <3.0 //g/L Manganese, total recoverable 6.6 6.6 //g/L Nickel, total recoverable <4.0 <4.0 <4.0 //g/L GE 0 Nitrate-nitrite as nitrogen 680 682 584 //g/L GE 0 Nonvolatile beta 1.4E + 00 pCi/L Radium, total alpha-emitting 1.7E + 00 5.0E-01 1.0E + 00 9.0E-01 J pCi/L GP 0 Selenium, total recoverable <2.0 //g/L Silver, total recoverable <2.0 <2.0 //g/L GE 0 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 //g/L GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 //g/L GE 0 Toluene <1.0 <1.0 <1.0 <1.0 //g/L GE 0 Total organic carbon <1,000 < 1,000 < 1,000 1,260 J //g/L GE 0 Total organic halogens <5.0 5.1 <5.0 15 //g/L GE 0 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 //g/L GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 //g/L GE 0 Trichloroethylene 4.1 5.2 4.4 3.6 //g/L GE 1 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 //g/L GE 0 Zinc, total recoverable 17 //g/L

WELL AMB 4D

SRS Coord. Lat/Lonqitude Screen Zone Elevation Too of Casino Casino Pump Scree n Zone

N104154.7 33.340124 °N 233.4-213.4 ft msl 380.3 ft msl 4" PVC S M E51489.0 81.733584 °W

SAMPLE DATE 02/12/94 04/22/94 08/22/94 10/28/94

FIELD DATA

Analvte 1Q94 2Q94 3Q94 4Q94 Unit

Water elevation 233.9 234.1 234.0 233.4 ft msl Depth to water 146.4 146.2 146.4 146.9 ft pH 5.2 5.2 5.3 5.1 PH Sp. conductance 34 38 39 39 //S/cm Water temperature 18.5 19.2 20.7 18.5 °C

Alkalinity as CaC03 2 6 1 3 mg/L Turbidity 2 2 1 6 NTU Volume purged 4.5 4.7 6.8 0.9 well vol Sampling code X

ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3Q94 4Q94 DF Mod Unit Lab Flag

Acenaphthene <10 //g/L Acenaphthylene <10 //g/L Acetone <500 //g/L Acetonitrile (Methyl cyanide) <25 //g/L Acetophenone <10 nan. 2-Acetylaminofluorene <10 //g/L Acrolein <100 //g/L Acrylonitrile <100 //g/L Aldrin <0.050 //g/L Allyl chloride <250 //g/L Aluminum, total recoverable 27 23 //g/L 4-Aminobipheny! <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-11 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 4D continued

ANALYTICAL DATA

Analyte 1Q94 2094 3094 4Q94 DF IMo d Unit Lab Rag

Aniline <10 //g/L Anthracene <10 //g/L Antimony, total recoverable <2.0 //g/L Aramite <10 //g/L Arsenic, total recoverable <2.0 //g/L Barium, total recoverable 4.6 //g/L Benzene <5.0 <1.0 <5.0 <2.0 2 //g/L GE 0 alpha-Benzene hexachloride < 0.050 //g/L beta-Benzene hexachloride < 0.050 //g/L delta-Benzene hexachloride <0.050 //g/L Benzo[s]anthracene <10 //g/L BenzoI6]fluoranthene <10 //g/L BenzoUJfluoranthene <10 //g/L Benzof,/]perylene <10 //g/L Benzolalpyrene <10 //g/L Benzyl alcohol <10 //g/L Beryllium, total recoverable <3.0 //g/L Bis(2-chloroethoxy) methane <10 //g/L Bis(2-chloroethyl) ether <10 //g/L Bis(2-chloroisopropy0 ether <25 //g/L Bis(2-ethylhexyl) phthalate <10 //g/L Bromodichloromethane <5.0 <1.0 <5.0 <2.0 2 //g/L GE 0 Bromoform <5.0 <1.0 <5.0 <2.0 2 //g/L GE 0 Bromomethane (Methyl bromide) <5.0 <1.0 <5.0 <2.0 2 nail. GE 0 4-Bromophenyl phenyl ether <10 /]anthracene <10 //g/L Dibenzofuran <10 /»g/L Dibromochloromethane <5.0 <1.0 <5.0 <2.0 2 /*g/L GE 0 1,2-Dibromo-3-chloropropane <25 //g/L 1,2-Dibromoethane <100 //g/L Dibromomethane <5.0 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-12 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 4D continued ANALYTICAL DATA

Analvte 1Q94 2Q94 30.94 4Q94 DF dod Unit Lab £1

Di-n-butyl phthalate <10 //g/L 1,2-Dichlorobenzene <10 jug/L 1,3-Dichlorobenzene <10 ngiL 1,4-Dichlorobenzene <10 mil 3,3'-Dichlorobenzidine <10 //g/L trans-1,4-Dichloro-2-butene <150 mii Oichlorodifluoromethane <5.0 //g/L es t 1,1 -Dichloroethane <5.0 <1.0 <5.0 <2.0 //g/L GE 0 1,2-Dichloroethane <5.0 <1.0 <5.0 <2.0 2 //g/L GE 0 1,1 -Dichloroethylene <5.0 <1.0 <5.0 <2.0 2 //g/L GE 0 trans-1,2-Dichloroethylene <5.0 <1.0 <5.0 <2.0 2 mil GE 0 Dichloromethane <5.0 <1.0 <5.0 <2.0 2 //g/L GE 0 2,4-Dichlorophenol <10 pgll 2,6-Dichlorophenol <10 //g/L 2,4-Oichiorophenoxyacetic acid <0.0015 //g/L 1,2-Dichloropropane <5.0 <1.0 <5.0 <2.0 2 //g/L GE 0 cis-1,3-Dichloropropene <5.0 <1.0 <5.0 <2.0 2 //g/L GE 0 trans-1,3- Dichloropropene <5.0 <1.0 <5.0 <2.0 2 //g/L GE 0 Dieldrin <0.025 M9/L Diethyl phthalate <10 A/g/L Dimethoate <10 //g/L 2,4-Dimethyl phenol <10 //g/L Dimethyl phthalate <10 mii p-Dimethylaminoazobenzene <10 //g/L 7,12-Dimethylbenzlslanthracene <10 M9/L 3,3'-Dimethylbenzidine <10 //g/L a,a-Dimethylphenethylamine <10 mil 1,3-Dinitrobenzene <10 IJQ/L 2,4-Dinitrophenol <45 //g/L 2,4-Dinitrotoluene <10 rn'i 2,6-Dinitrotoluene <10 //g/L Di-n-octyl phthalate <10 //g/L 1,4-Dioxane <10 //g/L Diphenylamine <10 //g/L Disulfoton <10 //g/L Endosulfan 1 <0.10 mil Endosulfan II <0.10 //g/L Endosulfan sulfate <0.10 //g/L Endrin <50 //g/L Endrin aldehyde <0.10 //g/L Ethyl methacrylate <10 //g/L Ethyl methanesulfonate <10 //g/L Ethylbenzene <5.0 <1.0 <5.0 <2.0 2 mil GE 0 Famphur <10 //g/L Fluoranthene <10 //g/L Buorene <10 //g/L Fluoride <10O <20 1 //g/L GE 0 Gross alpha 6.1E + 00 3.3E + 00 pCi/L Heptachlor < 0.050 //g/L Heptachlor epoxide < 0.050 //g/L 1,2,3,4,6,7,8-HPCDD < 0.065 //g/L Heptachlorodibenzo-p-dioxin isomers < 0.065 //g/L 1,2,3,4,6,7,8-HPCDF <0.O45 //g/L Heptachlorodibenzo-p-furan isomers < 0.045 //g/L Hexachlorobenzene <10 mil Hexachlorobutadiene <10 mil Hexachlorocyclopentadiene <10 //g/L 1,2,3,4,7,8-HXCDD < 0.045 mil Hexachiorodibenzo-p-dioxin isomers < 0.045 mil 1,2,3,4,7,8-HXCDF < 0.040 mil Hexachlorodibenzo-p-furan isomers < 0.040 mil Hexachloroethane <10 mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-13 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 40 continued

ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3Q94 4094 DF JMo d Unit Lab Fl

Hexachlorophene <10 //g/L Hexachioropropene <10 //g/L 2-Hexanone <50 mil Indenol 7,2,3-cdlpyrene <10 mil lodomethane (Methyl iodide) <75 mii Iron, total recoverable 20 17 mil Isobutyl alcohol <500 mil Isodrin <10 mil Isophorone <10 mil Isosafrole <10 mil Kepone <10 mil Lead, total recoverable <3.0 <3.0 mil Lindane < 1,250 mil Manganese, total recoverable 17 11 mil Mercury, total recoverable <0.20 mil Methacrylonitrile <250 mil Methapyrilene <10 mil Methoxychlor <0.50 m/i 2-Methyl-4,6-dinitrophenol <10 mil Methyl ethyl ketone <5.0 mil Methyl isobutyl ketone <50 mil Methyl methacrylate <25 mil Methyl methanesulfonate <10 mil 3-Methylcholanthrene <10 mil 2-Methylnaphthalene <10 mil Naphthalene <10 mil 1,4-Naphthoquinone <10 mil 1-Naphthylamine <10 mil 2-Naphthylamine <10 m/i Nickel, total recoverable <4.0 <4.0 <4.0 1 mil GE o Nitrate-nitrite as nitrogen 920 1,140 2,470 2 mil GE o o-Nitroaniline <10 mil m-Nitroaniline <10 mil p-Nitroaniiine <10 mil Nitrobenzene <10 mil 2-Nitrophenol <10 mil 4-Nitrophenol <10 mil 4-Nitroquinoline-1 -oxide <10 m/i N-Nitrosodi-n-butylamine <10 mil N-Nitrosodiethylamine <10 mil N-Nitrosodimethylamine <10 mil N-Nitrosodiphenylamine <10 mil N-Nitrosodipropylamine <10 mil N-Nitrosomethylethylamine <10 mil N-Nitrosomorpholine <10 mil N-Nitrosopiperidine <10 mil N-Nitrosopyrrolidine <10 mil 5-Nitro-o-toluidine <10 mil Nonvolatile beta 1.1E + 00 pCi/L 0,0,0-Triethyl phosphorothioate <10 mil Octachlorodibenzo-p-dioxin <0.10 mn Octachlorodibenzo-p-furan <0.10 mil Parathion < 0.050 mn Parathion methyl < 0.050 mil PCB 1016 <0.50 mil PCB 1221 <0.50 m/i PCB 1232 <0.50 mil PCB 1242 <0.50 mil PCB 1248 <0.50 mil PCB 1254 <0.50 m/i PCB 1260 <0.50 mil Pentachlorobenzene <10 mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-14 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 4D continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3094 4Q94 DF dod Unit Lab R

1,2,3,7,8-PCDD < 0.055 M9/1 Pentachlorodibenzo-p-dioxin isomers <0.055 mil 1,2,3,7,8-PCDF <0.055 mil Pentachloroethane <10 mil Pentachloronitrobenzene <10 mil Pentachlorophenol <10 mil Phenacetin <10 mil Phenanthrene <10 mil Phenol <10 mil p-Phenylenediamine <10 mil Phorate <0.10 mil 2-Picoline <10 mil Pronamid <10 mil Propionitriie <1,000 mil Pyrene <10 mil Pyridine <10 mil Radium, total alpha-emitting 4.8E+00 2.9E+00 2.6E + 00 5.7E + 00 1 pCi/L GP 0 Safrole <10 mil Selenium, total recoverable <2.0 mil Silver, total recoverable <2.0 <2.0 <2.0 1 mil GE 0 Styrene <50 mn Sulfide < 1,000 mil Sulfotepp <10 mil 1,2,4,5-Tetrachlorobenzene <10 rn'i 2,3,7,8-TCDD <0.045 mil 2,3,7,8-TCDF < 0.040 mil Tetrachlorodibenzo-p-dioxin isomers < 0.045 mil Tetrachlorodibenzo-p-furan isomers < 0.040 mil 1,1,1,2-Tetrachloroethane <5.0 rn'i 1,1,2,2-Tetrachloroethane <5.0 <1.0 <5.0 <2.0 2 mil GE 0 • Tetrachloroethylene 5.5 4.6 <5.0 10 2 m/i GE 2 2,3,4,6-Tetrachlorophenol <10 mil Thallium, total recoverable <2.0 rn'i Thionazin <10 mil Tin, total recoverable <2.0 mil Toluene <5.0 <1.0 <5.0 <2.0 2 mil GE 0 o-Toluidine <10 mil Total organic carbon < 1,000 <1,000 < 1,000 1,200 1 J m'i GE 0 Total organic halogens 24 45 25 96 1 m/i GE 2 Toxaphene <0.24 mil 2,4,5-TP (Silvex) < 0.00045 mil 1,2,4-Trichlorobenzene <10 mil 1,1,1 -Trichloroethane <5.0 <1.0 <5.0 <2.0 2 mil GE 0 1,1,2-Trichloroethane <5.0 <1.0 <5.0 <2.0 2 mil GE 0 • Trichloroethylene 83 62 66 135 2 mil GE 2 Trichiorofluoromethane <5.0 <1.0 <5.0 <2.0 2 mil GE 0 2,4,5-Trichlorophenol <10 mil 2,4,6-Trichlorophenol <10 mil 2,4,5-T < 0.00045 mil 1,2,3-Trichloropropane <5.0 mil 1,3,5-Trinitrobenzene <10 mil Vanadium, total recoverable <8.0 mil Vinyl acetate <50 mil Xylenes <10 mil Zinc, total recoverable 19 mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-1S Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WELLAMB 5

SRS Coord. Lat/Lonqitude Screen Zone Elevation Top of Casinq Casing Pump Screen Zone

N104083.4 33.339930 242.1-222.1 ft msl 379.6 ft msl 4" PVC S MGCL E51467.2 81.733502 °W

SAMPLE DATE 02/13/94 04/25/94 08/22/94 10/28/94

FIELD DATA

Analvte 1Q94 2Q94 3Q94 4094 Unit

Water elevation 234.2 234.4 234.4 234.3 ft msl Depth to water 145.4 145.2 145.3 145.3 ft PH 5.0 5.3 5.2 5.3 pH Sp. conductance 50 53 53 47 //S/cm Water temperature 16.8 19.7 20.6 18.8 "C

Alkalinity as CaC03 1 4 4 5 mg/L Turbidity 98 6 7 27 NTU Volume purged 0.6 21.4 10.8 9.9 well vol. Sampling code X

ANALYTICAL DATA

H ST Analvte 1Q94 2094 3Q94 4Q94 DF Mod Unit Lab Rafl

Acenaphthene <10 //g/L Acenaphthylene <10 //g/L Acetone <500 //g/L Acetonitrile (Methyl cyanide) <25 //g/L Acetophenone <10 //g/L 2-Acetylaminofluorene <10 //g/L Acrolein <100 //g/L Acrylonvtrite <100 //g/L Aldrin <0.050 //g/L Ally) chloride <250 //g/L Aluminum, total recoverable 556 159 //g/L 4-Aminobiphenyl <10 //g/L Aniline <10 //g/L Anthracene <10 //g/L Antimony, total recoverable <2.0 //g/L Aramite <10 //g/L Arsenic, total recoverable <2.0 //g/L Barium, total recoverable 4.2 //g/L Benzene <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 alpha-Benzene hexachloride <0.050 //g/L beta-Benzene hexachloride < 0.050 //g/L delta-Benzene hexachloride <0.050 //g/L Benzolalanthracene <10 //g/L Benzo[/>]fluoranthene <10 //g/L BenzolJtlfluoranthene <10 //g/L Benzo|c/,/!,(lperylene <10 //g/L Benzoialpyrene <10 //g/L Benzyl alcohol <10 //g/L Beryllium, total recoverable <3.0 //g/L Bis(2-chloroethoxy) methane <10 //g/L Bis(2-chloroethyl) ether <10 //g/L Bis(2-chioroisopropyl) ether <25 //g/L Bis(2-ethylhexyl) phthalate <10 //g/L Bromodichloromethane <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 Bromoform <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 4-Bromophenyl phenyl ether <10 //g/L Butylbenzyl phthalate <10 //g/L 2-sec-Butyl-4,6-dinitrophenol <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-16 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 5 continued

ANALYTICAL DATA

H ST Analyte 1Q94 2Q94 3Q94 4094 2E JMo d Unit Lab fi Cadmium, total recoverable <2.0 <2.0 //g/L Carbon disulfide <50 //g/L Carbon tetrachloride 1.5 <1.0 <5.0 <1.0 1 //g/L GE 0 Chlordane <0.50 //g/L Chloride 3,170 2,740 1 //g/L GE 0 4-Chloroaniline <10 //g/L Chlorobenzene <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 Chlorobenzilate <10 //g/L 4-Chloro-m-cresol <10 //g/L Chloroethane <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <5.0 <1.0 i //g/L GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 i //g/L GE 0 Chloroform <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 2-Chloronaphthalene <10 //g/L 2-Chlorophenol <10 //g/L 4-Chlorophenyl phenyl ether <10 //g/L Chloroprene <1,000 //g/L Chromium, total recoverable <4.0 //g/L Chrysene <10 //g/L Cobalt, total recoverable <4.0 //g/L Copper, total recoverable <4.0 //g/L o-Cresol (2-Methylphenol) <10 //g/L m,p-Cresol <10 //g/L Cyanide <5.0 <5.0 <5.0 1 //g/L GE 0 p,p'-DDD < 0.099 //g/L p,p'-DDE < 0.099 //g/L p,p'-DDT < 0.099 //g/L Diallate <10 //g/L Dibenzle,n)anthracene <10 //g/L Dibenzofuran <10 //g/L Dibromochloro methane <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 1,2-Dibromo-3-chloropropane <25 //g/L 1,2-Dibromoethane <100 //g/L Dibromomethane <5.0 //g/L Di-n-butyl phthalate <10 //g/L 1,2-Dichlorobenzene <10 //g/L 1,3-Dichlorobenzene <10 //g/L 1,4-Dichlorobenzene <10 //g/L 3,3'-Dichlorobenzidine <10 //g/L trans-1,4-Dichloro-2-butene <150 //g/L Dichlorodifluoromethane <5.0 //g/L 1,1-Dichloroethane 1.5 <1.0 <5.0 <1.0 1 //g/L GE 0 1,2-Dichloroethane <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 1,1-Dichloroethylene <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 Dichloro methane <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 2,4-Dichlorophenol <10 //g/L 2,6-Dichlorophenol <10 //g/L 2,4-Dichlorophenoxyacetic acid <0.0015 //g/L 1,2-Dichloropropane <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 Dieldrin < 0.025 //g/L Diethyl phthalate <10 //g/L Dimethoate <10 //g/L 2,4-Dimethyl phenol <10 //g/L Dimethyl phthalate <10 //g/L p-Dimethylaminoazobenzene <10 //g/L 7,12-Dimethylbenz|alanthracene <10 //g/L 3,3'-Dimethylbenzidine <10 //g/L a,a-Dimethylphenethylamine <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-17 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMS 5 continued

ANALYTICAL DATA

H ST Analvte 10,94 2094 3Q94 4Q94 DF Mod Unit Lab Flag

1,3-Dinitrobenzene //g/l 2,4-Dinitrophenol mil 2,4-Dinitrotoluene //g/L 2,6-Dinitrotoluene //g/L Di-n-octyl phthalate mii 1,4-Dioxane //g/L Diphenylamine //g/L Disulfoton mil Endosulfan I mil Endosulfan II mli Endosulfan sulfate mlt Endrin mil Endrin aldehyde mii Ethyl methacrylate Ethyl methanesulfonate mll Ethylbenzene < 1.0 <1.0 <1.0 mii Famphur pgll GE Fluoranthene mil Fluorene mil Fluoride <100 <20 //g/L Gross alpha 2.5E + 01 5.4E + 00 //g/L GE Heptachlor <0.050 pCi/L Heptachlor epoxide <0.050 //g/L 1,2,3,4,6,7,8-HPCDD < 0.065 mli Heptachlorodibenzo-p-dioxin isomers <0.065 //g/L 1,2,3,4,6,7,8-HPCDF <0.045 mil Heptachlorodibenzo-p-furan isomers < 0.045 vglL Hexachlorobenzene <10 mli Hexachlorobutadiene <10 mil Htexachlorocyclopentadiene <10 mil 1,2,3,4,7,8-HXCDD <0.045 m'l Hexachlorodibenzo-p-dioxin isomers < 0.045 mil 1,2,3,4,7,8-HXCDF < 0.040 mii Hexachlorodibenzo-p-f uran isomers <0.040 mil Hexachloroethane <10 nail Hexachlorophene <10 mil Hexachloropropene <10 //g/L 2-Hexanone <50 //g/L Indenol 7,2,3-c,rf]pyrene <10 //g/L lodomethane (Methyl iodide) <75 //g/L //g/L Iron, total recoverable 327 102 //g/L Isobutyl alcohol <500 //g/L Isodrin <10 <10 //g/L Isophorone //g/L Isosafrole <10 <10 //g/L Kepone //g/L Lead, total recoverable 8.7 <3.0 <1,250 //g/L Lindane //g/L Manganese, total recoverable 19 6.7 //g/L Mercury, total recoverable <0.20 //g/L Methacrylonitrile <250 //g/L Methapyrilene <10 mil Methoxychior <0.50 //g/L 2-Methyl-4,6-dinitrophenol <10 //g/L Methyl ethyl ketone <5.0 mil Methyl isobutyi ketone <50 //g/L Methyl methacrylate <25 //g/L <10 Methyl methanesulfonate //g/L <10 3-Methylcholanthrene //g/L <10 2-Methylnaphthalene mil <10 mil Naphthalene <10 1,4-Naphthoquinone mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-18 Fourth Quarter 1994 and 1994 Summary WSRC-TR-944615 Unclassified

Well AMB 5 continued

ANALYTICAL DATA

H ST Analvte 1Q94 2094 3Q94 4Q94 D£ Mod Unit Lab Ri

1-Naphthylamine <10 //g/L 2-Naphthylamine <10 //g/L Nickel, total recoverable <4.0 <4.0 <4.0 1 //g/L GE 0 Nitrate-nitrite as nitrogen 550 774 708 1 //g/L GE 0 o-Nitroaniline <10 //g/L m-Nitroaniline <10 //g/L p-Nitroaniline <10 //g/L Nitrobenzene <10 //g/L 2-Nitrophenol <10 //g/L 4-Nitrophenol <10 //g/L 4-Nitroquinoline-1-oxide <10 //g/L N-Nitrosodi-n-butylamine <10 //g/L N-Nitrosodiethylamine <10 //g/L N-Nitrosodimethylamine <10 //g/L N-Nitrosodiphenylamine <10 //g/L N-Nitrosodipropylamine <10 //g/L N-Nitrosomethylethylamine <10 //g/L N-Nitrosomorpholine <10 //g/L N-Nitrosopiperidine <10 //g/L N-Nitrosopyrrolidine <10 //g/L 5-Nitro-o-toluidine <10 //g/L Nonvolatile beta 2.1E+00 pCi/L 0,0,0-Triethyl phosphorothioate <10 ^/L Octachlorodibenzo-p-dioxin <0.10 ng/L Octachlorodibenzo-p-furan <0.10 //g/L Parathion < 0.050 //g/L Parathion methyl <0.050 //g/L PCB 1016 <0.50 //g/L PCB 1221 <0.50 //g/L PCB 1232 <0.50 //g/L PCB 1242 <0.50 //g/L PCB 1248 <0.50 //g/L PCB 1254 <0.50 //g/L PCB 1260 <0.50 //g/L Pentachlorobenzene <10 //g/L 1,2,3,7,8-PCDD <0.055 //g/L Pentachlorodibenzo-p-dioxin isomers < 0.055 //g/L 1,2,3,7,8-PCDF <0.055 //g/L Pentachloroethane <10 //g/L Pentachloronitrobenzene <10 //g/L Pentachlorophenol <10 //g/L Phenacetin <10 //g/L Phenanthrene <10 //g/L Phenol <10 //g/L p-Phenytenediamine <10 //g/L Phorate <0.099 //g/L 2-Picoline <10 //g/L Pronamid <10 //g/L Propionitrile < 1,000 //g/L Pyrene <10 //g/L Pyridine <10 //g/L Radium, total alpha-emitting 1.3E + 01 2.9E + 0O 4.7E + 00 3.7E + 00 1 pCi/L GP 0 Safrole <10 //g/L Selenium, total recoverable <2.0 //g/L Silver, total recoverable <2.0 <2.0 <2.0 1 //g/L GE 0 Styrene <50 //g/L Sulfide < 1,000 //g/L Sulfotepp <10 //g/L 1,2,4,5-Tetrachlorobenzene <10 //g/L 2,3,7,8-TCDD <0.045 //g/L 2,3,7,8-TCDF < 0.040 //g/L Tetrachlorodibenzo-p-dioxin isomers <0.045 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-19 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 5 continued

ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3Q94 4Q94 DF Mod Unit Lab Fl

Tetrachlorodibenzo-p-furan isomers < 0.040 //g/L 1,1,1,2-Tetrachloroethane <5.0 //g/L 1,1,2,2-Tetrachloroethane <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 Tetrachloroethylene 7.9 2.6 <5.0 2.7 1 //g/L GE 1 2,3,4,6-Tetrachlorophenol <10 //g/L Thallium, total recoverable <2.0 //g/L Thionazin <10 jug/L Tin, total recoverable <2.0 //g/L Toluene <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 o-Toluidine <10 //g/L Total organic carbon 1,400 <1,000 <1,000 1,410 1 J //g/L GE 0 Total organic halogens 90 35 47 21 1 //g/L GE 0 Toxaphene <0.24 //g/L 2,4,5-TP (Silvex) < 0.00045 //g/L 1,2,4-Trichlorobenzene <10 //g/L 1,1,1 -Trichloroethane <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 1,1,2-Trichloroethane <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 Trichloroethylene 111 39 60 40 1 //g/L GE 2 Trichlorofluoromethane <1.0 <1.0 <5.0 <1.0 1 //g/L GE 0 2,4,5-Trichlorophenol <10 //g/L 2,4,6-Trichlorophenol <10 //g/L 2,4,5-T < 0.00045 //g/L 1,2,3-Trichloropropane <5.0 //g/L 1,3,5-Trinitrobenzene <10 //g/L Vanadium, total recoverable <8.0 //g/L Vinyl acetate <50 //g/L Xylenes <10 //g/L Zinc, total recoverable <2.0 //g/L

WELL AMB 6

SRS Coord. Lat/Lonoitude Screen Zone Elevation Too of Casino Casino Pump Screen Zone

N104034.1 33.339819 °N 242.6-222.6 ft msl 377.2 ft msl 4" PVC S GCL E51466.0 81.733410 °W

SAMPLE DATE 02/13/94 04/26/94 08/23/94 10/28/94

FIELD DATA

Analvte 1094 2094 3Q94 4Q94 Unit

Water elevation 234.4 234.5 234.5 234.4 ft msl Depth to water 142.8 142.7 142.7 142.8 ft pH 5.5 5.6 5.4 5.8 PH Sp. conductance 52 75 62 44 //S/cm Water temperature 16.3 18.7 19.1 18.4 °C

Alkalinity as CaC03 13 9 5 10 mg/L Turbidity 97 6 7 10 NTU Volume purged 0.4 0.4 0.4 0.5 well vol, Sampling code X X X X

ANALYTICAL DATA

H ST Analvte 1094 2094 3094 4Q94 DF Mod Unit Lab Flag

Acenaphthene <9.9 //g/L Acenaphthylene <9.9 //g/L Acetone <100 //g/L Acetonitrile (Methyl cyanide) <5.0 //g/L Acetophenone <9.9 //g/L 2-Acetylaminofluorene <9.9 //g/L Acrolein <20 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-20 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 6 continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3Q94 4Q94 DF 1Mo d Unit Lab Flag

Acrylonitrile <20 //g/L Aldrin < 0.050 //g/L Allyl chloride <50 //g/L Aluminum, total recoverable 4,320 1,650 //g/L 4-Aminobiphenyl <9.9 //g/L Aniline <9.9 //g/L Anthracene <9.9 //g/L Antimony, total recoverable <2.0 //g/L Aramite <9.9 //g/L Arsenic, total recoverable <2.0 //g/L Barium, total recoverable <3.0 //g/L Benzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 alpha-Benzene hexachloride < 0.050 //g/L beta-Benzene hexachloride < 0.050 //g/L delta-Benzene hexachloride < 0.050 //g/L Benzolalanthracene <9.9 //g/L BenzoIAIfluoranthene <9.9 //g/L Benzo[*]fluoranthene <9.9 //g/L Benzo[£,/>,>]perylene <9.9 //g/L Benzolslpyrene <9.9 //g/L Benzyl alcohol <9.9 //g/L Beryllium, total recoverable <3.0 //g/L Bis(2-chloroethoxy) methane <9.9 //g/L Bis(2-chloroethyl) ether <9.9 //g/L Bis(2-chloroisopropyl) ether <5.0 //g/L Bis<2-ethylhexyl) phthalate <9.9 //g/L Bromodichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Bromoform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 4-Bromophenyl phenyl ether <9.9 //g/L Butylbenzyl phthalate <9.9 //g/L 2-sec-Butyl-4,6-dinitrophenol <9.9 //g/L Cadmium, total recoverable <2.0 <2.0 //g/L Carbon disulfide <10 //g/L Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlordane <0.50 //g/L Chloride 2,870 2,340 1 //g/L GE 0 4-Chloroaniline <9.9 //g/L Chloro benzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlorobenzilate <9.9 //g/L 4-Chloro-m-cresol <9.9 //g/L Chloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chioronaphthalene <9.9 //g/L 2-Chlorophenol <9.9 //g/L 4-Chlorophenyl phenyl ether <9.9 //g/L Chloroprene <200 //g/L Chromium, total recoverable <4.0 //g/L Chrysene <9.9 //g/L Cobalt, total recoverable <4.0 //g/L Copper, total recoverable 45 //g/L o-Cresol (2-Methylphenol) <9.9 //g/L m,p-Cresol <9.9 //g/L Cyanide <5.0 <5.0 <5.0 1 //g/L GE 0 p,p'-DDD <0.10 //g/L p,p'-DDE <0.10 //g/L p,p'-DDT <0.10 //g/L Diallate <9.9 //g/L Dibenz|a,/>lanthracene <9.9 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-21 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 6 continued

ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3Q94 4Q94 DF Mod Unit Lab Rag

Dibenzofuran <9.9 //g/L Dibromochloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dibromo-3-chloropropane <5.0 //g/L 1,2-Dibromoethane <20 //g/L Dibromomethane <1.0 //g/L Oi-n-butyl phthalate <9.9 //g/L 1,2-Dichlorobenzene <9.9 //g/L 1,3-Dichlorobenzene <9.9 //g/L 1,4-0ichlorobenzene <9.9 //g/L 3,3'-Dichlorobenzidine <9.9 //g/L trans-1,4-Dichloro-2-butene <30 //g/L Dichlorodifluoromethane <1.0 //g/L 1,1-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1 -Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,4-Dichlorophenol <9.9 //gfl- 2,6-Dichlorophenol <9.9 //g/L 2,4-Dichlorophenoxyacetic acid <0.0015 //g/L 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Oieldrin < 0.025 //g/L Diethyl phthalate <9.9 //g/L Dimethoate <9.9 //g/L 2,4-Dimethyl phenol <9.9 //g/L Dimethyl phthalate <9.9 //g/L p-Dimethylaminoazobenzene <9.9 //g/L 7,12-Dimethylbenzla]anthracene <9.9 //g/L 3,3'-Dimethylbenzidine <9.9 //g/L a,a-Dimethylphenethylamine <9.9 //g/L 1,3-Dinitrobenzene <9.9 //g/L 2,4-Dinitrophenol <45 //g/L 2,4-Dinitrotoluene <9.9 //g/L 2,6-Dinitrotoluene <9.9 //g/L Di-n-octyl phthalate <9.9 //g/L 1,4-Dioxane <9.9 //g/L Diphenylamine <9.9 //g/L Disulfoton <9.9 //g/L //g/L Endosulfan I <0.10 //g/L Endosulfan II <0.10 //g/L Endosulfan sulfate <0.10 <50 //g/L Endrin //g/L <0.10 Endrin aldehyde //g/L <9.9 Ethyl methacrylate //g/L Ethyl methanesulfonate <9.9 Ethylbenzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Famphur <9.9 //g/L Fluoranthene <9.9 //g/L Fluorene <9.9 //g/L Fluoride <100 <20 1 //g/L GE 0 Gross alpha 4.1E+00 1.4E+00 pCi/L Heptachlor < 0.050 //g/L Heptachlor epoxide < 0.050 //g/L 1,2,3,4,6,7,8-HPCDD <0.065 //g/L Heptachlorodibenzo-p-dioxin isomers < 0.065 //g/L 1,2,3,4,6,7,8-HPCDF <0.045 //g/L Heptachlorodibenzo-p-furan isomers <0.045 //g/L Hexachlorobenzene <9.9 //g/L Hexachlorobutadiene <9.9 //g/L Hexachlorocyclopentadiene <9.9 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-22 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 6 continued

ANALYTICAL DATA

H ST Analyte 1094 2Q94 3094 4Q94 DF Mod Unjt Lab Flag.

1,2,3,4,7,8-HXCDD <0.045 /g/L Hexachlorodibenzo-p-dioxin isomers < 0.045 /g/L 1,2.3,4,7,8-HXCDF < 0.040 /g/L Hexachlorodibenzo-p-furan isomers < 0.040 vg/i Hexachloroethane <9.9 /g/L Hexachlorophene <9.9 /g/L Hexachloropropene <9.9 /g/L 2-Hexanone <10 /g/L Indenol 7,2,5-cdlpyrene <9.9 /g/L lodomethane (Methyl iodide) <15 /g/L Iron, total recoverable 2,790 1,150 /g/L Isobutyl alcohol <100 /g/L Isodrin <9.9 /g/L Isophorone <9.9 /g/L Isosafrole <9.9 //g/L Kepone <9.9 /g/L Lead, total recoverable 57 24 /g/L Lindane < 1,250 /g/L Manganese, total recoverable 10 6.7 /g/L Mercury, total recoverable •C0.20 //g/L Methacrylonitrile <50 //g/L Methapyrilene <9.9 //g/L Methoxychlor <0.50 /g/L 2-Methyl-4,6-dinitrophenol <9.9 //g/L Methyl ethyl ketone <1.0 //g/L Methyl isobutyl ketone <10 //g/L Methyl methacrylate <5.0 //g/L Methyl methanesulfonate <9.9 //g/L 3-Methylcholanthrene <9.9 //g/L 2-Methylnaphthalene <9.9 //g/L Naphthalene <9.9 //g/L 1,4-Naphthoquinone <9.9 //g/L 1-Naphthylamine <9.9 //g/L 2-Naphthylamine <9.9 //g/L Nickel, total recoverable <4.0 <4.0 4.9 1 J ^g/L GE 0 Nitrate-nitrite as nitrogen 240 313 236 1 //g/L GE 0 o-Nitroaniline <9.9 //g/L m-Nitroaniline <9.9 //g/L p-Nitroaniline <9.9 //g/L Nitrobenzene <9.9 //g/L 2-Nitrophenol <9.9 //g/L 4-Nitrophenol <9.9 //g/L 4-Nitroquinoline-1 -oxide <9.9 //g/L N-Nitrosodi-n-butylamine <9.9 //g/L N-Nitrosodiethylamine <9.9 /g/L N-Nitrosodimethylamine <9.9 /g/L N-Nitrosodiphenylamine <9.9 //g/L N-Nitrosodipropylamine <9.9 //g/L N-Nitrosomethylethylamine <9.9 //g/L N-Nitrosomorpholine <9.9 /g/L N-Nitrosopiperidine <9.9 //g/L N-Nitrosopyrrolidine <9.9 //g/L 5-Nitro-o-toluidine <9.9 //g/L Nonvolatile beta 2.2E + 00 pCi/L 0,0,0-Triethyl phosphorothioate <9.9 //g/L Octachlorodibenzo-p-dioxin <0.10 /g/L Octachlorodibenzo-p-furan <0.10 //g/L Parathion < 0.050 /g/L Parathion methyl < 0.050 /g/L PCB 1016 <0.50 //g/L PCB 1221 <0.50 //g/L PCB 1232 <0.50 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-23 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 6 continued

ANALYTICAL DATA

H ST Analvte 1094 2094 3Q94 4094 DF Mod Unit Lab Flag

PCB 1242 <0.50 mil PCB 1248 <0.50 //g/L PCB 1254 <0.50 mil PCB 1260 <0.50 mil Pentachlorobenzene <9.9 mii 1,2,3,7,8-PCDD <0.058 m'l Pentachlorodibenzo-p-dioxin isomers <0.055 m'l 1,2,3,7,8-PCDF <0.055 mii Pentachloroethane <9.9 mil Pentachloronitrobenzene <9.9 mil Pentachlorophenol <9.9 V9/L Phenacetin <9.9 m'i Phenanthrene <9.9 U9II Phenol <9.9 mil p-Phenylenediamine <9.9 mil Phorate <0.10 mll 2-Picoline <9.9 mil Pronamid <9.9 A9/L Propionitrile <200 mil Pyrene <9.9 pg/i Pyridine <9.9 //g/L Radium, total alpha-emitting 2.8E+00 1.1E+00 1.3E+00 1.0E + 00 1 J pCi/L GP 0 Safrole <9.9 mil Selenium, total recoverable <2.0 U9/L Silver, total recoverable <2.0 <2.0 <2.0 1 m'l QE 0 Styrene <10 mil Sulfide <1,000 mil Sulfotepp <9.9 i/g/L 1,2,4,5-Tetrachlorobenzene <9.9 M9/L 2,3,7,8-TCDD < 0.045 V9H- 2,3,7,8-TCDF < 0.040 rn'i Tetrachlorodibenzo-p-dioxin Isomers <0.045 mil Tetrachiorodtbenzo-p-furan isomers < 0.040 mil 1,1,1,2-Tetrachloroethane <1.0 mil 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 2,3,4,6-Tetrachlorophenol <9.9 rn'i Thallium, total recoverable <2.0 mil Thionazin <9.9 mil Tin, total recoverable <2.0 mil Toluene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 o-Toluidine <9.9 rn'i Total organic carbon <1,000 <1,000 <1,000 < 1,000 1 mil GE 0 Total organic halogens 7.0 <5.0 <5.0 6.7 1 J m/i GE 0 Toxaphene <0.24 mil 2,4,5-TP (Silvex) <0.00045 m/i 1,2,4-Trichlorobenzene <9.9 mil 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 m/i GE 0 Trichloroethylene 10 8.4 7.9 7.2 1 m/i GE 2 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 2,4,5-Trichlorophenol <9.9 m'i 2,4,6-Trichlorophenol <9.9 mil 2,4,5-T <0.00045 mil 1,2,3-Trichloropropane <1.0 mil 1,3,5-Trinitrobenzene <9.9 mil Vanadium, total recoverable <8.0 mil Vinyl acetate <10 mil Xylenes <2.0 mil Zinc, total recoverable 23 mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-24 Fourth Quarter1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WELLAMB 7

SRS Coord. Lat/Lonqitude Screen Zone Elevation Top of Casinq Casing Pump Screen Zone

N103920.0 33.339827 °N 242.1-222.1 ftmsl 369.9 ft msl 4" PVC S M E51624.9 81.732769 °W

SAMPLE DATE 02/12/94 04/20/94 08/24/94 10/28/94

FIELD DATA

Analvte 1Q94 2Q94 3094 4Q94 Unit

Water elevation 235.0 234.9 234.5 234.7 ft msl Depth to water 134.9 135.0 135.4 135.2 ft PH 6.2 6.6 6.3 6.3 PH Sp. conductance 74 115 105 66 //S/cm Water temperature 16.6 22.6 19.4 17.7 °C

Alkalinity as CaC03 31 42 42 28 mg/L Turbidity 12 3 3 10 NTU Volume purged 0.9 0.7 1.2 1.1 well vol Sampling code X X X

ANALYTICAL DATA

H ST Analyte 1Q94 2Q94 3Q94 4Q94 DF Mod Unit

Acenaphthene <10 //g/L Acenaphthylene <10 //g/L Acetone <100 //g/L Acetonitrile (Methyl cyanide) <5.0 //g/L Acetophenone <10 //g/L 2-Acetyiaminofluorene <10 //g/L Acrolein <20 //g/L Acrylonitrile <20 //g/L Aldrin <0.050 //g/L Allyl chloride <50 //g/L Aluminum, total recoverable 128 88 //g/L 4-Aminobiphenyl <10 //g/L Aniline <10 //g/L Anthracene <10 //g/L Antimony, total recoverable <2.0 /»g/L Aramite <10 //g/L Arsenic, total recoverable <2.0 //g/L Barium, total recoverable 9.1 //g/L Benzene <1.0 <1.0 <1.0 <1.0 //g/L GE alpha-Benzene hexachloride < 0.050 //g/L beta-Benzene hexachloride < 0.050 //g/L delta-Benzene hexachloride <0.050 //g/L Benzolaianthracene <10 //g/L Benzol/>]fluoranthene <10 //g/L Benzolkifluoranthene <10 //g/L Benzol^,/),/] perylene <10 //g/L Benzolslpyrene <10 //g/L Benzyl alcohol <10 //g/L Beryllium, total recoverable <3.0 //g/L Bis(2-chloroethoxy) methane <10 //g/L Bisl2-chloroethyl) ether <10 //g/L Bis(2-chloroisopropyl) ether <5.0 //g/L Bis(2-ethylhexyll phthalate 21 //g/L Bromodichloromethane < 1.0 <1.0 <1.0 <1.0 //g/L GE Bromoform < 1.0 <1.0 <1.0 <1.0 //g/L GE Bromomethane (Methyl bromide) < 1.0 <1.0 <1.0 <1.0 //g/L GE 4-Bromophenyl phenyl ether <10 //g/L Butylbenzyl phthalate <10 //g/L 2-sec-Butyl-4,6-dinitrophenol <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-25 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7 continued

ANALYTICAL DATA

H ST Analvte 1094 2094 3Q94 4094 DF 1Mo d Unit Lab Flag

Cadmium, total recoverable <2.0 <2.0 //g/L Carbon disulfide <10 //g/L Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlordane <0.50 //g/L Chloride 2,140 1,920 1 U9/L GE 0 4-Chloroaniline <10 //g/L Chlorobenzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlorobenzilate <10 //g/L 4-Chloro-m-cresol <10 //g/L Chloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloronaphthalene <10 //g/L 2-Chlorophenol <10 //g/L 4-Chlorophenyl phenyl ether <10 //g/L Chloroprene <200 fig/L Chromium, total recoverable <4.0 //g/L Chrysene <10 //g/L Cobalt, total recoverable <4.0 //g/L Copper, total recoverable 268 //g/L o-Cresol (2-Methylphenol) <10 //g/L m,p-Cresol <10 //g/L Cyanide <5.0 <5.0 <5.0 1 //g/L GE 0 p,p'-DDD < 0.099 //g/L p,p'-DDE < 0.099 //g/L p,p'-DDT < 0.099 //g/L Diallate <10 //g/L Dibenz(a,/))anthracene <10 //g/L Dibenzofuran <10 //g/L Dibromochloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dibromo-3-chloropropane <5.0 //g/L 1,2-Dibromoethane <20 //g/L Dibromomethane <1.0 //g/L Di-n-butyl phthalate <10 //g/L 1,2-Dichlorobenzene <10 //g/L 1,3-Dichlorobenzene <10 //g/L 1,4-Dichlorobenzene <10 //g/L 3,3'-Dichlorobenzidine <10 //g/L trans-1,4-Dichloro-2-butene <30 //g/L Oichlorodifluoromethane <1.0 //g/L 1,1 -Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1 -Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,4-Dichlorophenol <10 //g/L 2,6-Dichlorophenol <10 //g/L 2,4-Dichlorophenoxyacetic acid < 0.0015 //g/L 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Dieldrin <0.025 //g/L Diethyl phthalate <10 //g/L Dimethoate <10 //g/L 2,4-Dimethyl phenol <10 //g/L Dimethyl phthalate <10 //g/L p-Dimethylaminoazobenzene <10 //g/L 7,12-Dimethylbenz[alanthracene <10 //g/L 3,3'-Dimethylbenzidine <10 //g/L a,a-Dimethylphenethylamine <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-26 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7 continued

ANALYTICAL DATA

H ST Analyte 1Q94 2Q94 3094 4094 DF Mod Unit Lab Rag

1,3-Dinitrobenzene /zg/L 2,4-Dinitrophenol /ig/L 2,4-Dinitrotoluene //g/L 2,6-Dinitrotoluene Pd/l Di-n-octyl phthalate pgll 1,4-Dioxane Pdll Diphenylamine mil Disulfoton Pall Endosulfan I //g/L Endosulfan II Endosulfan sulfate //g/L Endrin //g/L Endrin aldehyde mil Ethyl methacrylate ugli Ethyl methanesulfonate mil Ethylbenzene < 1.0 <1.0 <1.0 1 pgl\. GE 0 Famphur ug/L Fluoranthene Pall Fluorene mil Fluoride <100 <20 1 */g/L GE 0 Gross alpha 5.9E-01 5.7E-01 pCi/L Heptachlor < 0.050 Pali Heptachlor epoxide < 0.050 nail 1,2,3.4,6,7,8-HPCDD <0.065 mil Heptachlorodibenzo-p-dioxin isomers < 0.065 Pall 1,2,3,4,6,7,8-HPCDF < 0.045 nan Heptachlorodibenzo-p-furan isomers < 0.045 nail Hexachlorobenzene <10 vali Hexachlorobutadiene <10 vail Hexachlorocyclopentadiene <10 mil 1,2,3,4,7.8-HXCDD < 0.045 uaii Hexachlorodibenzo-p-dioxin isomers < 0.045 mil 1,2,3,4,7,8-HXCDF < 0.040 mil Hexachlorodibenzo-p-furan isomers < 0.040 mil Hexachloroethane <10 pan Hexachlorophene <10 mil Hexachloropropene <10 mil 2-Hexanone <10 pail Indenol ;,2,3-c, dlpyrene <10 Pan lodomethane (Methyl iodide) <15 mil Iron, total recoverable 163 91 m/i Isobutyi alcohol <100 pan Isodrin <10 pan Isophorone <10 Pali Isosafrole <10 Pali Kepone <10 mil Lead, total recoverable 8.9 <3.0 Pali Lindane < 1,250 uaii Manganese, total recoverable 3.2 4.7 mil Mercury, total recoverable <0.20 Pali Methacrylonitrile <50 pan Methapyrilene <10 pan Methoxychlor <0.50 pan 2-Methyl-4,6-dinitrophenol <10 pan Methyl ethyl ketone <1.0 mil pan Methyl isobutyi ketone <10 pan Methyl methacrylate <5.0 <10 pan Methyl methanesulfonate Pali <10 3-Methytcholanthrene Pali <10 2-Methylnaphthalene Pali Naphthalene <10 pan 1,4-Naphthoquinone <10

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-27 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7 continued

ANALYTICAL DATA

H ST Analyte 1094 2094 3Q94 4Q94 OF Mod Unit Lab Flag

1-Naphthylamine <10 //g/L 2-Naphthylamine <10 //g/L Nickel, total recoverable 4.9 17 7.0 1 //g/L GE 0 Nitrate-nitrite as nitrogen 250 119 186 1 //g/L GE 0 o-Nitroaniline <10 //g/L m-Nitroaniline <10 //g/L p-Nitroaniline <10 //g/L Nitrobenzene <10 //g/L 2-Nitrophenol <10 //g/L 4-Nitrophenol <10 //g/L 4-Nitroquinoline-1 -oxide <10 //g/L N-Nitrosodi-n-butylamine <10 //g/L N-Nitrosodiethylamine <10 //g/L N-Nitrosodimethylamine <10 //g/L N-Nitrosodiphenylamine <10 //g/L N-Nitrosodipropyiamine <10 //g/L <10 N-Nitrosomethylethylamine //g/L <10 //g/L N-Nitrosomorpholine <10 //g/L N-Nitrosopiperidine <10 N-Nitrosopyrrolidine <10 //g/L 5-Nitro-o-toluidine //g/L Nonvolatile beta 8.2E-01 pCi/L 0,0,0-Triethyl phosphorothioate <10 //g/L Octachlorodibenzo-p-dioxin <0.10 //g/L Octachlorodibenzo-p-furan <0.10 //g/L Parathion < 0.050 //g/L Parathion methyl < 0.050 //g/L PCB 1016 <0.50 //g/L PCB 1221 <0.50 //g/L PCB 1232 <0.50 //g/L PCB 1242 <0.50 //g/L PCB 1248 <0.50 //g/L PCB 1254 <0.50 //g/L PCB 1260 <0.50 nail Pentachlorobenzene <10 //g/L 1,2,3,7,8-PCDD < 0.055 //g/L Pentachlorodibenzo-p-dioxin isomers <0.055 //g/L 1,2,3,7,8-PCDF <0.055 //g/L //g/L Pentachloroethane <10 //g/L Pentachloronitrobenzene <10 <10 //g/L Pentachlorophenol //g/L Phenacetin <10 <10 //g/L Phenanthrene //g/L Phenol <10 <10 //g/L p-Phenylenediamine //g/L Phorate < 0.099 //g/L 2-Picoline <10 //g/L Pronamid <10 //g/L Propionitrile <200 //g/L Pyrene <10 //g/L Pyridine <10 Radium, total alpha-emitting 1.6E + 00 3.0E-01 5.0E-01 0.0E + 00 1 Ul pCi/L GP 0 Safrole <10 //g/L Selenium, total recoverable <2.0 //g/L Silver, total recoverable 2.0 <2.0 <2.0 1 //g/L GE 0 Styrene <10 //g/L Sulfide < 1,000 //g/L Sulfotepp <10 //g/L 1,2,4,5-Tetrachlorobenzene <10 //g/L 2,3,7,8-TCDD < 0.045 //g/L 2,3,7,8-TCDF < 0.040 //g/L Tetrachlorodibenzo-p-dioxin isomers < 0.045 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-28 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7 continued

ANALYTICAL DATA

H ST Analyte 1Q94 2094 3094 4094 DF Mod Unit Lab Flag

Tetrachlorodibenzo-p-furan isomers < 0.040 mil 1,1,1,2-Tetrachloroethane <1.0 mil 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 1 ug'i GE 0 2,3,4,6-Tetrachlorophenol <10 m'l Thallium, total recoverable <2.0 H9'l Thionazin <10 m'l Tin, total recoverable 2.8 mil Toluene <1.0 <1.0 <1.0 <1.0 1 rn'i GE 0 o-Toluidine <10 H9ll Total organic carbon 1,700 <1,000 < 1,000 <1,000 1 mil GE 0 Total organic halogens 5.7 <5.0 <5.0 <5.0 1 mil GE 0 Toxaphene <0.24 mi 2,4,5-TP (Silvex) < 0.00045 mil 1,2,4-Trichlorobenzene <10 mil 1,1,1-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Trichloroethylene 4.3 6.6 4.8 4.1 1 mil GE 1 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 2,4,5-Trichlorophenol <10 mil 2,4,6-Trichlorophenol <10 mil 2,4,5-T <0.00045 mil 1,2,3-Trichloropropane <1.0 mil 1,3,5-Trinitrobenzene <10 mil Vanadium, total recoverable <8.0 mil Vinyl acetate <10 mil Xylenes <2.0 rn'i Zinc, total recoverable 178 mil

WELL AMB 7A

SRS Coord. Lat/Lonoitude Screen Zone Elevation Top of Casino Casing Pump Screen Zone

N103987.1 33.339920 °N 125.6-115.6 ft msl 373.6 ft msl 4" PVC S MCBC E51591.0 81.732989 °W

SAMPLE DATE 02/12/94 04/25/94 08/23/94 10/28/94

FIELD DATA

Analvte 1Q94 2094 3Q94 4Q94 Unit

Water elevation 220.0 219.5 220.1 219.5 ft msl Depth to water 153.6 154.2 153.6 154.1 ft pH 5.8 5.9 5.6 5.9 pH Sp. conductance 29 31 29 27 //S/cm Water temperature 18.1 19.1 19.0 18.7 °C

Alkalinity as CaC03 6 4 4 4 mg/L Turbidity 1 1 1 2 NTU Volume purged 3.3 5.3 3.1 2.6 well vol Sampling code

ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3Q94 4Q94 DF Mod Unit Lab Flag

Acenaphthene <10 mil Acenaphthylene <10 mil Acetone <500 mil Acetonitrile (Methyl cyanide) <25 mil Acetophenone <10 mil 2-Acetylaminofluorene <10 mil Acrolein <100 M9'l

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-29 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7A continued

ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3Q94 4Q94 DF Mod Unit Lab Flag

Acrylonitrile <100 Aldrin < 0.053 Ally! chloride <250 m i Aluminum, total recoverable <20 <20 //g/L 4-Aminobiphenyl <10 //g/L Aniline <10 //g/L Anthracene <10 //g/L Antimony, total recoverable <2.0 //g/L Aramite <10 //g/L Arsenic, total recoverable <2.0 //g/L Barium, total recoverable 4.2 //g/L Benzene <1.0 <1.0 <5.0 <2.0 2 //g/L GE 0 alpha-Benzene hexachloride <0.053 //g/L beta-Benzene hexachloride < 0.053 //g/L delta-Benzene hexachloride < 0.053 //g/L Benzo[a]anthracene <10 //g/L BenzoIMfluoranthene <10 //g/L BenzoMrlfluoranthene <10 //g/L Benzoio,/>,/)perylene <10 //g/L Benzotalpyrene <10 //g/L Benzyl alcohol <10 //g/L Beryllium, total recoverable <3.0 //g/L Bis(2-chloroethoxy) methane <10 //g/L Bis(2-chloroethyl) ether <10 //g/L Bis(2-chloroisopropyl) ether <25 //g/L Bis(2-ethylhexyl) phthalate <10 //g/L Bromodichloromethane <1.0 <1.0 <5.0 <2.0 2 //g/L QE 0 Bromoform <1.0 <1.0 <5.0 <2.0 2 //g/L GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <5.0 <2.0 2 //g/L GE 0 4-Bromophenyl phenyl ether <10 //g/L Butylbenzyl phthalate <10 //g/L 2-sec-Butyl-4,6-dinitrophenol <10 //g/L Cadmium, total recoverable <2.0 <2.0 //g/L Carbon disulfide <50 //g/L Carbon tetrachloride <1.0 <1.0 <5.0 <2.0 2 //g/L GE 0 Chlordane <0.53 //g/L Chloride 2,000 1,390 1 //g/L GE 0 4-Chloroaniline <10 //g/L Chlorobenzene <1.0 <1.0 <5.0 <2.0 2 //g/L GE 0 Chlorobenzilate <10 //g/L 4-Chloro-m-cresol <10 //g/L Chloroethane <1.0 <1.0 <5.0 <2.0 2 //g/L GE 0 Chloroethene IVinyl chloride) <1.0 <1.0 <5.0 <2.0 2 //g/L GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <2.0 2 //g/L GE 0 Chloroform <1.0 <1.0 <5.0 <2.0 2 //g/L GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <5.0 <2.0 2 //g/L GE 0 2-Chloronaphthalene <10 //g/L 2-Chlorophenol <10 //g/L 4-Chlorophenyl phenyl ether <10 //g/L Chloroprene < 1,000 //g/L Chromium, total recoverable <4.0 //g/L Chrysene <10 //g/L Cobalt, total recoverable <4.0 //g/L Copper, total recoverable <4.0 //g/L o-Cresol (2-Methylphenol) <10 //g/L m,p-Cresol <10 //g/L Cyanide <5.0 <5.0 <5.0 1 //g/L GE 0 p,p'-DDD <0.11 //g/L p,p'-DDE <0.11 //g/L p,p'-DDT <0.11 //g/L Diallate <10 //g/L Dibenz[a,/>lanthracene <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-30 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7A continued

ANALYTICAL DATA

Analvte 1Q94 2Q94 3Q94 4Q94 DF Mod Unit Lab F[

Dibenzofuran <10 A9/L Dibromochloromethane <1.0 <1.0 <5.0 <2.0 2 A9/L GE 0

1,2-Dibromo-3-chioropropane <25 «"• 1,2-Dibromoethane <100 «I/L Dibromomethane <5.0 M3/L Di-rt-butyl phthalate <10 pg/L 1,2-Dichlorobenzene <10 P9/L 1,3-Dichlorobenzene <10 «J/L 1,4-Dichlorobenzene <10 m'i 3,3'-Dichlorobenzidine <10 MIL trans-1,4-Dichloro-2-butene <150 «J/L Dichlorodifluoromethane <5.0 M/U 1,1 -Dichlaroethane <1.0 <1.0 <5.0 <2.0 2 P9/L GE 0 1,2-Dichloroethane <1.0 <1.0 <5.0 <2.0 2 K9/L GE 0 1,1 -Dichloroethylene <1.0 <1.0 <5.0 <2.0 2 «J/L GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <5.0 <2.0 2 t&\- GE 0 Dichloro methane <1.0 <1.0 <5.0 <2.0 2 mn. GE 0 2,4-Dichlorophenol <10 V9/L 2,6-Dichlorophenol <10 //g/L 2,4-Dichlorophenoxyacetic acid <0.0O15 //g/L 1,2-Dichloropropane <1.0 <1.0 <5.0 <2.0 2 pgn- GE 0 cis-1,3-Oichloropropene <1.0 <1.0 <5.0 <2.0 2 tm'i GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <5.0 <2.0 2 vsii GE 0 Oieldrin < 0.025 M9/L Diethyl phthalate <10

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-31 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7 A continued

ANALYTICAL DATA

H ST Analyte 1094 2094 3094 4Q94 DF Mod Unit Lab Fl

1,2,3,4,7,8-HXCDD < 0.045 mil Hexachlorodibenzo-p-dioxin isomers < 0.045 //g/L 1,2,3,4,7,8-HXCDF <0.040 //g/L Hexachlorodibenzo-p-furan isomers < 0.040 //g/L Hexachloroethane <10 mil Hexachlorophene <10 m'l Hexachloropropene <10 //g/L 2-Hexanone <50 /»9>L Indenol 7,2,3-colpyrene <10 //g/L lodomethane (Methyl iodide) <75 //g/L Iron, total recoverable 5.7 5.4 mil Isobutyl alcohol <500 //9/L Isodrin <10 //g/L Isophorone <10 mil Isosafrole <10 H9IL Kepone <10 U9/L Lead, total recoverable <3.0 <3.0 rn'i Lindane < 1,250 //g/L Manganese, total recoverable 6.1 5.9 //g/L Mercury, total recoverable <0.20 VQH- Methacrylonitrile <250 m/i Methapyrilene <10 //g/L Methoxychlor <0.53 //g/L 2-Methyl-4,6-dinitrophenol <10 //g/L Methyl ethyl ketone <5.0 //g/L Methyl isobutyl ketone <50 //g/L Methyl methacrylate <25 //g/L Methyl methanesulfonate <10 //g/L 3-Methylcholanthrene <10 //g/L 2-Methylnaphthalene <10 mil Naphthalene <10 //g/L 1,4-Naphthoquinone <10 //g/L 1-Naphthylamine <10 //g/L 2-Naphthylamine <10 //g/L Nickel, total recoverable <4.0 <4.0 <4.0 1 //g/L GE 0 Nitrate as nitrogen 837 //g/L Nitrate-nitrite as nitrogen 960 877 792 1 //g/L GE 0 o-Nitroaniline <10 //g/L m-Nitroaniline <10 //g/L p-Nitroaniline <10 //g/L Nitrobenzene <10 //g/L 2-Nitrophenol <10 //g/L 4-Nitrophenol <10 //g/L 4-Nitroquinoline-1 -oxide <10 //g/L N-Nitrosodi-n-butyla mine <10 //g/L N-Nitrosodiethylamine <10 //g/L N-Nitrosodimethylamine <10 //g/L N-N'ttrosodiphenylamine <10 //g/L N-Nitrosodipropylamine <10 //g/L N-Nitrosomethylethylainine <10 mil N-Nitrosomorpholine <10 //g/L N-Nitrosopiperidine <10 //g/L N-Nitrosopyrrolidine <10 //g/L 5-Nitro-o-toluidine <10 //9/L Nonvolatile beta 3.7E-01 pCi/L 0,0,0-Triethyl phosphorothioate <10 //g/L Octachlorodibenzo-p-dioxin <0.10 //g/L Octachlorodibenzo-p-furan <0.10 //9/L Parathion <0.053 //g/L Parathion methyl <0.053 //g/L PCB 1016 <0.53 //g/L PCB 1221 <0.53 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-32 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7A continued ANALYTICAL DATA

H ST Analvte 1094 2Q94 3094 4094 SL vlod Unit Lab Flag PCB 1232 <0.53 //g/L PCB 1242 <0.53

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-33 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7A continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3094 40.94 DF Mod Unit Lab Flag

Xylenes <10 pgIL Zinc, total recoverable 21 ug/l

WELL AMB 7B

SRS Coord. Lat/Longitude Screen Zone Elevation Top of Casino Casinq Pump Screen Zone

N103972.0 33.339885 °N 162.9-152.9 ft msl 373 ft msl 4" PVC S LL E51590.3 81.732961 °W

SAMPLE DATE 02/12/94 05/02/94 08/23/94 10/28/94

FIELD DATA

Analvte 1Q94 2094 3094 4094 Unit

Water elevation 225.5 225.5 225.7 225.2 ft msl Depth to water 147.6 147.6 147.3 147.8 ft PH 5.1 5.2 5.0 5.1 PH Sp. conductance 27 29 28 26 pS/cm Water temperature 18.0 18.4 19.0 18.6 °C

Alkalinity as CaC03 1 1 1 1 mg/L Turbidity 0 1 1 1 NTU Volume purged 3.7 4.0 3.0 3.2 well vol. Sampling code

ANALYTICAL DATA

H ST Analvte 1Q94 2094 3Q94 4Q94 DF Mod Unit

Acenaphthene <10 A/g/L Acenaphthylene <10 P9l\- Acetone <100 uglL Acetonitrile (Methyl cyanide) <5.0 ua/L Acetophenone <10 //g/L 2-Acetylaminofluorene <10 A9/L Acrolein <20 P9H- Acrylonitrile <20 ugii Aldrin <0.050 //g/L Allyl chloride <50 pg/L Aluminum, total recoverable <20 <20 vgi\- 4-Aminobiphenyl <10 Ag/L Aniline <10 i/g/L Anthracene <10 ugi\- Antimony, total recoverable <2.0 pg/i Aramite <10 pgii Arsenic, total recoverable <2.0 //g/L Barium, total recoverable <3.0 pgi\- Benzene <1.0 <1.0 <1.0 <1.0 1 ngl\- alpha-Benzene hexachloride <0.050 ngn- beta-Benzene hexachloride <0.050 mn- delta-Benzene hexachloride < 0.050 //g/L Benzo|a]anthracene <10 pgii Benzolo]fluoranthene <10 pg/L Benzo(£]fluoranthene <10 pgli Benzo[p-,/?,/lperylene <10 pgii Benzolalpyrene <10 pgii Benzyl alcohol <10 pgl\- Beryllium, total recoverable <3.0 pg/i Bis(2-chloroethoxy) methane <10 pg/i Bisl2-chloroethyl) ether <10 pg/L Bis(2-chloroisopropyl) ether <5.0 //g/L Bis(2-ethylhexyl) phthalate <10 /^/L Bromodichloro methane <1.0 <1.0 <1.0 <1.0 1 t^n

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-34 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7B continued

ANALYTICAL DATA y §T Analvte 1Q94 2Q94 3Q94 4Q94 OF Vlod Unit Lab Flag

Bromof orm <1.0 <1.0 <1.0 <1.0 1 //9/L GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 4-Bromophenyl phenyl ether <10 //g/L Butylbenzyl phthalate <10 //g/L 2-sec-Butyl-4,6-dinitrophenol <10 //g/L Cadmium, total recoverable <2.0 <2.0 //g/L Carbon disulfide <10 //g/L Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlordane <0.50 //g/L Chloride 3,320 2,870 1 //g/L GE 0 4-Chloroaniline <10 //g/L Chlorobenzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlorobenzilate <10 //g/L 4-Chloro-m-cresol <10 //g/L Chloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloronaphthalene <10 //g/L 2-Chlorophenol <10 mil 4-Chlorophenyl phenyl ether <10 mil Chloroprene <200 mil Chromium, total recoverable <4.0 mil Chrysene <10 mil Cobalt, total recoverable <4.0 mil Copper, total recoverable <4.0 mil o-Cresol (2-Methylphenol) <10 mil m,p-Cresol <10 mil Cyanide <5.0 <5.0 <5.0 1 m/i GE 0 p,p'-DDD < 0.099 mil p,p'-DDE < 0.099 mil p,p'-DDT < 0.099 m/i Diallate <10 mil Dibenz[e,/>]anthracene <10 mil Oibenzofuran <10 m/i Oibromochloromethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 1,2-Dibromo-3-chloropropane <5.0 mil 1,2-Dibromoethane <20 mil Oibromomethane <1.0 mil Di-n-butyl phthalate <10 mil 1,2-Dichlorobenzene <10 mil 1,3-0ichlorobenzene <10 mil 1,4-Dichlorobenzene <10 mil 3,3'-Dichlorobenzidine <10 mil trans-1,4-Dichloro-2-butene <30 mil Dichlorodifluoromethane <1.0 mi 1,1 -Dichloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 1,1 -Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 2,4-Dichlorophenol <10 mil 2,6-Dichlorophenol <10 mil 2,4-Dichlorophenoxyacetic acid < 0.0015 mil 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Oieldrin < 0.025 mil Diethyl phthalate <10 mil Dimethoate <10 mil 2,4-Dimethyl phenol <10 mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994. metallurgical Laboratory HWMF D-35 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7B continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3094 4Q94 DF Mod Unit Lab Rag

Dimethyl phthalate <10 ug/L p-Dimethylaminoazobenzene <10 //g/L 7,12-Dimethylbenzlalanthracene <10 //g/L 3,3'-Dimethylbenzidine <10 //g/L a,a-Dimethylphenethylamine <10 //g/L 1,3-Dinitrobenzene <10 //g/L 2,4-Dinitrophenol <46 //g/L 2,4-Dinitrotoluene <10 //g/L 2,6-Dinitrotoluene <10 //g/L Di-n-octyl phthalate <10 //g/L 1,4-Dioxane <10 //g/L Diphenylamine <10 ug/L Disulfoton <10 //g/L Endosulfan I < 0.099 //g/L Endosulfan II < 0.099 //g/L Endosulfan sulfate < 0.099 ug/L Endrin <50 //g/L Endrin aldehyde < 0.099 //g/L Ethyl methacrylate <10 //g/L Ethyl methanesulfonate <10 ug/L Ethylbenzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Famphur <10 //g/L Fluoranthene <10 //g/L Fluorene <10 //g/L Fluoride <100 <20 1 //g/L GE 0 Gross alpha O.2E-01 1.1E-01 pCi/L Heptachlor < 0.050 iig/L Heptachlor epoxide < 0.050 //g/L 1,2,3,4,6,7,8-HPCDD <0.065 fjgIL Heptachlorodibenzo-p-dioxin isomers <0.065 //g/L 1,2,3,4,6,7,8-HPCDF < 0.045 //g/L Heptachlorodibenzo-p-furan isomers < 0.045 //g/L Hexachlorobenzene <10 //g/L Hexachlorobutadiene <10 ug/L Hexachlorocyclopentadiene <10 //g/L 1,2,3,4,7,8-HXCDD < 0.045 //g/L Hexachlorodibenzo-p-dioxin isomers < 0.045 //g/L 1,2,3,4,7,8-HXCDF < 0.040 //g/L Hexachlorodibenzo-p-furan isomers < 0.040 //g/L Hexachloroethane <10 //g/L Hexachlorophene <10 //g/L Hexachloropropene <10 //g/L 2-Hexanone <10 //g/L Indenol 7,2,3-crflpyrene <10 //g/L lodomethane {Methyl iodide) <15 //g/L Iron, total recoverable 5.1 5.6 //g/L Isobutyl alcohol <100 //g/L Isodrin <10 /jgIL Isophorone <10 //g/L Isosafrole <10 //g/L Kepone <10 //g/L Lead, total recoverable <3.0 <3.0 //g/L Lindane < 1,250 //g/L Manganese, total recoverable <2.0 <2.0 //g/L Mercury, total recoverable <0.20 //g/L Methacrylonitrile <50 //g/L Methapyrilene <10 jjg/L Methoxychlor <0.50 //g/L 2-Methyl-4,6-dinitrophenol <10 //g/L Methyl ethyl ketone < 1.0 //g/L Methyl isobutyl ketone <10 ug/L Methyl methacrylate < 5.0 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-36 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 7B continued ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3Q94 4094 DF Mod Unit Lab Flaa

Methyl methanesulfonate <10 mil 3-Methylcholanthrene <10 mil 2-Methylnaphthalene <10 mil Naphthalene <10 i/g/L 1,4-Naphthoquinone <10 mil 1-Naphthylamine <10 mil 2-Naphthylamine <10 mil Nickel, total recoverable <4.0 <4.0 <4.0 1 //g/L GE 0 Nitrate-nitrite as nitrogen 350 424 329 1 mil GE 0 o-Nitroaniline <10 mil m-Nitroaniline <10 mil p-Nitroaniline <10 mil Nitrobenzene <10 mil 2-Nitrophenol <10 mil 4-Nitrophenol <10 mil 4-Nitroquinoline-1 -oxide <10 mn N-Nitrosodi-n-butylamine <10 mil N-Nitrosodiethylamine <10 mil N-Nitrosodimethylamine <10 mil N-Nitrosodiphenylamine <10 mil N-Nitrosodipropylamine <10 <10 mil N-Nitrosomethylethylamine <10 mil N-Nitrosomorpholine <10 mil N-Nitrosopiperidine <10 mil N-Nitrosopyrrolidine <10 mil 5-Nitro-o-toluidine mil Nonvolatile beta 8.3E-01 pCi/L 0,0,0-Triethyl phosphorothioate <10 rn'i Octachlorodibenzo-p-dioxin <0.10 m/i Octachlorodibenzo-p-furan <0.10 mil Parathion < 0.050 m/i Parathion methyl < 0.050 m/i PCB 1016 <0.50 mil PCB 1221 <0.50 mil PCB 1232 <0.50 m/i PCB 1242 <0.50 M9/1 PCB 1248 <0.50 mil PCB 1254 <0.50 mil PCB 1260 <0.50 mil Pentachlorobenzene <10 mil 1,2,3,7,8-PCDD < 0.055 mil Pentachlorodibenzo-p-dioxin isomers < 0.055 mil 1,2,3,7,8-PCDF <0.055 mil Pentachloroethane <10 mil Pentachloronitrobenzene <10 mil Pentachlorophenol <10 mil Phenacetin <10 mil Phenanthrene <10 mil Phenol <10 mil p-Phenylenediamine <10 mil Phorate < 0.099 mil 2-Picoline <10 mil Pronamid <10 mil Propionitrile <200 mil Pyrene <10 mil Pyridine <10 mil Radium, total alpha-emitting 1.2E+00 <3.0E-01 4.0E-01 3.0E-01 1 Ul pCi/L GP 0 Safrole <10 mil Selenium, total recoverable <2.0 mil Silver, total recoverable <2.0 <2.0 <2.0 1 mil GE 0 Styrene <10 mil Sulfide < 1,000 mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-37 Fourth Quarter 1994 and 1994 Summary lrVSRC-TR-94-0615 Unclassified

Well AMB 7B continued

ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3094 4094 DF Mod Unit Lab Fl

Sulfotepp <10 //g/L 1,2,4,5-Tetrachlorobenzene <10 //g/L 2,3,7,8-TCDD <0.045 //g/L 2,3,7,8-TCDF < 0.040 //g/L Tetrachlorodibenzo-p-dioxin isomers <0.045 //g/L Tetrachlorodibenzo-p-furan isomers < 0.040 //g/L 1,1,1,2-Tetrachloroethane <1.0 //g/L 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,3,4,6-Tetrachlorophenol <10 //g/L Thallium, total recoverable <2.0 //g/L Thionazin <10 //g/L Tin, total recoverable <2.0 //g/L Toluene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 o-Toluidine <10 //g/L Total organic carbon <1,000 <1,000 < 1,000 1,390 1 J //g/L GE 0 Total organic halogens <5.0 8.6 15 <5.0 1 //g/L GE 0 Toxaphene <0.24 //g/L 2,4,5-TP (Silvex) < 0.00046 //g/L 1,2,4-Trichlorobenzene <10 //g/L 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Trichloroethylene 3.1 3.0 3.8 4.0 1 //g/L GE 1 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,4,5-Trichlorophenol <10 //g/L 2,4,6-Trichlorophenol <10 //g/L 2,4,5-T < 0.00046 //g/L 1,2,3-Trichloropropane <1.0 //g/L 1,3,5-Trinitrobenzene <10 //g/L Vanadium, total recoverable <8.0 //g/L Vinyl acetate <10 //g/L Xylenes <2.0 //g/L Zinc, total recoverable 18 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-38 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WELLAMB 8D

SRS Coord. Lat/Lonqitude Screen Zone Elevation Top of Casino Casinq Pump Screen Zone

N103874.7 33.339360 °N 240.8-220.8 ft msl 369.6 ft msl 4" PVC S M E51400.5 81.733272 °W

SAMPLE DATE 02/12/94 04/21/94 08/23/94 10/26/94

FIELD DATA

Analvte 1Q94 2Q94 3Q94 4Q94 Unit

Water elevation 234.2 234.6 234.2 234.5 ft msl Depth to water 135.4 135.0 135.4 135.1 ft pH 5.7 5.6 5.3 5.6 PH Sp. conductance 57 61 60 58 //S/cm Water temperature 17.8 19.2 19.2 18.8 "C

Alkalinity as CaC03 10 7 14 12 mg/L Turbidity 0 0 0 1 NTU Volume purged 9.8 14.4 7.8 11.5 well vol. Sampling code

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3Q94 4Q94 DF Mod Unit Lab Flag

Acenaphthene <10 //g/L Acenaphthylene <10 //g/L Acetone <1O0 //g/L Acetonitrile (Methyl cyanide) <5.0 //g/L Acetophenone <10 //g/L 2-Acetylaminofluorene <10 //g/L Acrolein <20 //g/L Acrylonitrile <20 //g/L Aldrin < 0.050 //g/L Allyl chloride <50 //g/L Aluminum, total recoverable <20 <20 //g/L 4-Aminobiphenyl <10 //g/L Aniline <10 //g/L Anthracene <10 //g/L Antimony, total recoverable <2.0 //g/L Aramite <10 //g/L Arsenic, total recoverable <2.0 //g/L Barium, total recoverable <3.0 //g/L Benzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 alpha-Benzene hexachloride < 0.050 //g/L beta-Benzene hexachloride < 0.050 //g/L delta-Benzene hexachloride < 0.050 //g/L Benzolsjanthracene <10 //g/L BenzolAlfluoranthene <10 //g/L Benzo[*)fluoranthene <10 //g/L Benzo[£,/?,/]perylene <10 //g/L Benzolalpyrene <10 //g/L Benzyl alcohol <10 //g/L Beryllium, total recoverable <3.0 //g/L Bis(2-chloroethoxy) methane <10 //g/L Bis(2-chloroethyl) ether <10 //g/L Bis(2-chloroisopropyl) ether <5.0 //g/L Bis(2-ethylhexyl) phthalate <10 //g/L Bromodichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Bromoform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 4-Bromophenyl phenyl ether <10 //g/L Butylbenzyl phthalate <10 //g/L 2-sec-Butyl-4,6-dinitrophenol <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-39 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 8D continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3094 4094 DF IMo d Unit Lab Ei Cadmium, total recoverable <2.0 <2.0 //g/L Carbon disulfide <10 //g/L Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlordane <0.50 //g/L Chloride 2,870 2,130 1 //g/L GE 0 4-Chloroaniline <10 //g/L Chlorobenzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlorobenzilate <10 //g/L 4-Chloro-m-cresol <10 //g/L Chloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloronaphthalene <10 //g/L 2-Chlorophenol <10 //g/L 4-Chlorophenyl phenyl ether <10 //g/L Chloroprene <200 //g/L Chromium, total recoverable <4.0 //g/L Chrysene <10 //g/L Cobalt, total recoverable <4.0 //g/L Copper, total recoverable <4.0 //g/L o-Cresol (2-Methylphenol) <10 //g/L m,p-Cresol <10 //g/L Cyanide <5.0 <5.0 <5.0 1 //g/L GE 0 p,p'-DDD <0.10 //g/L p,p'-DDE <0.10 //g/L p,p'-DDT <0.10 //g/L Diallate <10 //g/L DibenzIs,A)anthracene <10 //g/L Dibenzofuran <10 //g/L Dibromochloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dibromo-3-chloropropane <5.0 //g/L 1,2-Dibromoethane <20 //g/L Dibromomethane <1.0 //g/L Di-n-butyl phthalate <10 //g/L 1,2-Dichlorobenzene <10 //g/L 1,3-Dichlorobenzene <10 //g/L 1,4-Dichlorobenzene <10 //g/L 3,3' -Dichlorobenzidine <10 //g/L trans-1,4-Dichloro-2-butene <30 //g/L Dichlorodifluoromethane <1.0 //g/L 1,1-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1 -Oichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Dichloro methane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,4-Dichloropheno! <10 //g/L 2,6-Dichlorophenol <10 //g/L 2,4-Dichlorophenoxyacetic acid <0.0016 //g/L 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Dieldrin <0.025 //g/L Diethyl phthalate <10 //g/L Dimethoate <10 //g/L 2,4-Dimethyl phenol <10 //g/L Dimethyl phthalate <10 //g/L p-Dimethylaminoazobenzene <10 //g/L 7,12-Dimethylbenzlalanthracene <10 //g/L 3,3'-Dimethylbenzidine <10 //g/L a,a-Dimethylphenethylamine <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-40 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-061S Unclassified

Well AMB 80 continued

ANALYTICAL DATA

H ST Analyte 1094 2Q94 3Q94 4094 DF Mod Unit Lab Flap.

1,3-Dinitrobenzene <10 //g/L 2,4-Dinitrophenol <46 ug/i 2,4-Dinitrotoluene <10 mil 2,6-Dinitrotoluene <10 mil Di-n-octyl phthalate <10 mil 1,4-Dioxane <10 mil Diphenylamine <10 mil Disulfoton <10 mil Endosulfan I <0.10 mil Endosulfan II <0.10 mil Endosulfan sulfate <0.10 mil Endrin <50 mil Endrin aldehyde <0.10 mil Ethyl methacrylate <10 mil Ethyl methanesulfonate <10 mil Ethylbenzene < 1.0 <1.0 <1.0 <1.0 1 mil GE Famphur <10 mil Fluoranthene <10 mil Fluorene <10 mil Fluoride <100 <20 1 mil GE Gross alpha 1. 2E + 00 1.6E + 00 pCi/L Heptachlor < 0.050 mil Heptachlor epoxide < 0.050 mil 1,2,3,4,6,7,8-HPCDD < 0.065 mil Heptachlorodibenzo-p-dioxin isomers < 0.065 mil 1,2,3,4,6,7,8-HPCDF < 0.045 mil Heptachlorodibenzo-p-furan isomers <0.045 mil Hexachlorobenzene <10 mil Hexachlorobutadiene <10 mil Hexachlorocyclopentadiene <10 mil 1,2,3,4,7,8-HXCDD < 0.045 mil Hexachlorodibenzo-p-dioxin isomers <0.045 mil 1,2,3,4,7,8-HXCDF <0.040 mil Hexachlorodibenzo-p-furan isomers < 0.040 uaii Hexachloroethane <10 m/i Hexachlorophene <10 mil Hexachloropropene <10 mil 2-Hexanone <10 mil Indenol 7,2,3-c,t/]pyrene <10 mil lodomethane (Methyl iodide) <15 mil Iron, total recoverable 7.4 18 mil Isobutyl alcohol <100 mil Isodrin <10 mil Isophorone <10 m/i Isosafrole <10 mil Kepone <10 mil <3.0 mil Lead, total recoverable <3.0 mil Lindane < 1,250 mil Manganese, total recoverable <2.0 <2.0 mil Mercury, total recoverable <0.20 mil Methacrylonitrile <50 mil Methapyrilene <10 mil Methoxychlor <0.50 mil 2-Methyl-4,6-dinitrophenoi <10 mil Methyl ethyl ketone <1.0 mil Methyl isobutyl ketone <10 mn Methyl methacrylate <5.0 mil Methyl methanesulfonate <10 mil 3-Methylcholanthrene <10 mil 2-Methylnaphthalene <10 mil Naphthalene <10 <10 mil 1,4-Naphthoquinone

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-41 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 8D continued

ANALYTICAL DATA

H ST Analvte 1Q94 2094 3094 4Q94 DF Mod Unit Lab Flafl

1-Naphthylamine <10 //g/L 2-Naphthylamine <10 //g/L Nickel, total recoverable <4.0 <4.0 <4.0 1 //g/L GE 0 Nitrate-nitrite as nitrogen 310 322 280 1 //g/L GE 0 o-Nitroaniline <10 //g/L m-Nitroaniline <10 //g/L p-Nitroaniline <10 /

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-42 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 8D continued

ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3Q94 4094 DF Mod Unit Lab FJafl

Tetrachlorodibenzo-p-furan isomers < 0.040 //g/L 1,1,1,2-Tetrachloroethane <1.0 *rg/L 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,3,4,6-Tetrachlorophenol <10 Thallium, total recoverable <2.0 /«J/L Thionazin <10 //g/L Tin, total recoverable <2.0 //g/L Toluene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 o-Toluidine <10 //g/L Total organic carbon 1,860 1,560 1,660 1,720 1 yg/L GE 0 Total organic halogens <5.0 <5.0 <5.0 <5.0 1 «J/L GE 0 Toxaphene <0.24 //g/L 2,4,5-TP (Silvex) < 0.00046 //g/L 1,2,4-Trichlorobenzene <10 //g/L 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Trichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 1 «|/L GE 0 2,4,5-Trichlorophenol <10 //g/L 2,4,6-Trichlorophenol <10 //g/L 2,4,5-T <0.00046 //g/L 1,2,3-Trichloropropane <1.0 //g/L 1,3,5-Trinitrobenzene <10 //g/L Vanadium, total recoverable <8.0 //g/L Vinyl acetate <10 //g/L Xylenes <2.0 //g/L Zinc, total recoverable 19 //g/L

WELL AMB 9D

SRS Coord. Lat/Lonqitude Screen Zone Elevation Too of Casino Casinq Pump Screen Zone

N103585.2 33.338496 "N 239.7-219.7 ft msl 367.9 ft msl 4" PVC S M E51263.0 81.733071 °W

SAMPLE DATE 02/12/94 04/21/94 08/24/94 10/26/94

FIELD DATA

Analvte 1094 2Q94 3094 4094 Unit

Water elevation 234.7 235.0 234.5 234.9 ft msl Depth to water 133.2 132.9 133.5 133.0 ft pH 5.6 5.5 5.5 5.6 PH Sp. conductance 41 43 43 41 //S/cm Water temperature 17.2 18.5 18.5 18.0 °C

Alkalinity as CaC03 7 4 4 6 mg/L Turbidity 2 1 1 2 NTU Volume purged 7.6 9.4 5.9 8.1 well vol Sampling code

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3094 4Q94 DF Mod Unit Lab Flag

Acenaphthene <10 //g/L Acenaphthylene <10 //g/L Acetone <100 //g/L Acetonitrile (Methyl cyanide) <5.0 //g/L. Acetophenone <10 //g/L 2-Acetylaminofluorene <10 //g/L Acrolein <20 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-43 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 9D continued

ANALYTICAL DATA

H ST Analyte 1094 2094 3094 4Q94 Df Mod Unit Lab Flag

Acrylonitrile <20 mil Aldrin < 0.051 mil Ally) chloride <50 Man Aluminum, total recoverable 57 <20 4-Aminobiphenyl <10 Aniline <10 Anthracene <10 Antimony, total recoverable <2.0 Aramite <10 Arsenic, total recoverable <2.0 Barium, total recoverable <3.0 mmn Benzene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 alpha-Benzene hexachloride <0.051 mil beta-Benzene hexachloride <0.051 mil delta-Benzene hexachloride < 0.051 mil Benzolalanthracene <10 mil Benzol6]fluoranthene <10 mil Benzol/tlfluoranthene <10 mil Benzolg,/),/)perylene <10 mil Benzolalpyrene <10 mil Benzyl alcohol <10 m/i Beryllium, total recoverable <3.0 m/i Bis(2-chloroethoxy) methane <10 mil Bis(2-chloroethyl) ether <10 mil Bis{2-chloroisopropyl) ether <5.0 mil Bis(2-ethylhexyl) phthalate <10 mil Bromodichloromethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Bromoform <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <1.0 1 mil GE 0 4-Bromophenyl phenyl ether <10 mil Butylbenzyi phthalate <10 mil 2-sec-Butyl-4,6-dinitrophenol <10 mil Cadmium, total recoverable <2.0 <2.0 mil Carbon disulfide <10 m/i Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Chlordane <0.51 mil Chloride 3,060 2,750 1 mil GE 0 4-Chloroaniline <10 mil Chtorobenzene <1.0 <1.0 <1.0 <1.0 1 GE 0 Chlorobenzilate <10

4-Chloro-m-cresol <10 m Chloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 1 mil GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 1 mil GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 1 GE 0 2-Chloronaphthalene <10 2-Chlorophenol <10 4-Chlorophenyl phenyl ether <10 Chloroprene <200 Chromium, total recoverable <4.0 Chrysene <10 Cobalt, total recoverable <4.0 Copper, total recoverable 7.7 o-Cresol (2-Methylphenol) <10 <10

m,p-Cresol mmmii Cyanide <5.0 <5.0 <5.0 1 Man GE 0 p,p'-DDD <0.10 nail p,p'-DDE <0.10 Man p,p'-DDT <0.10 Man Diallate <10 Man Dibenzla,/)|anthracene <10 Man

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-44 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 9D continued

ANALYTICAL DATA Analvte 1Q94 2Q94 3Q94 4094 DF IMo d Unit Lab fi Dibenzof uran <10 //g/L Dibromochloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dibromo-3-chioropropane <5.0 //g/L 1,2-Dibromoethane <20 //g/L Dibromomethane <1.0 //g/L Di-n-butyl phthaiate <10 //g/L 1,2-Dichlorobenzene <10 //g/L 1,3-Dichlorobenzene <10 //g/L 1,4-Dichlorobenzene <10 //g/L 3,3'-Dichlorobenzidine <10 //g/L trans-1,4-Dichloro-2-butene <30 //g/L Dichlorodifluoromethane <1.0 //g/L 1,1 -Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1 -Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,4-Dichlorophenol <10 //g/L 2,6-Dichlorophenol <10 //g/L 2,4-Dichlorophenoxyacetic acid < 0.0015 //g/L 1,2-Dichloroprooane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Dieldrin < 0.025 //g/L Diethyl phthaiate <10 //g/L Dimethoate <10 //g/L 2,4-Dimethyl phenol <10 //g/L Dimethyl phthaiate <10 //g/L p-Dimethylaminoazobenzene <10 //g/L 7,12-Dimethylbenz[alanthracene <10 //g/L 3,3'-Dimethylbenzidine <10 //g/L a,a-Dimethylphenethylamine <10 //g/L 1,3-Dinitrobenzene <10 //g/L 2,4-Dinitrophenol <45 //g/L 2,4-Dinitrotoluene <10 //g/L 2,6-Dinitrotoluene <10 //g/L Di-n-octyl phthaiate <10 //g/L 1,4-Dioxane <10 //g/L Diphenylamine <10 //g/L Disulfoton <10 //g/L Endosulfan I <0.10 //g/L Endosulfan II <0.10 //g/L Endosulfan sulfate <0.10 //g/L Endrin <50 //g/L Endrin aldehyde <0.10 //g/L Ethyl methacrylate <10 //g/L Ethyl methanesulfonate <10 //g/L Ethylbenzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Famphur <10 //g/L Fluoranthene <10 //g/L Fluorene <10 //g/L Fluoride <100 <20 1 //g/L GE 0 Gross alpha 1.0E + 00 1.1E + 00 pCi/L Heptachlor < 0.051 //g/L Heptachlor epoxide <0.051 //g/L 1,2,3,4,6,7,8-HPCDD < 0.065 «J/L Heptachlorodibenzo-p-dioxin isomers <0.065 //g/L 1,2,3,4,6,7,8-HPCDF < 0.045 //g/L Heptachlorodibenzo-p-furan isomers < 0.045 //g/L Hexachlorobenzene <10 //g/L Hexachlorobutadiene <10 //g/L Hexachlorocyclopentadiene <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-45 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 9D continued

ANALYTICAL DATA

H §T Analvte 1094 2Q94 3Q94 4094 DF Mod Unit Lab Flag

1,2,3,4,7,8-HXCDD <0.045 //g/L Hexachlorodibenzo-p-dioxin isomers < 0.045 //g/L 1,2,3,4,7,8-HXCDF •C0.040 //g/L Hexachlorodibenzo-p-furan isomers < 0.040 //g/L Hexachloroethane <10 //g/L Hexachlorophene <10 //g/L Hexachloropropene <10 //g/L 2-Hexartone <10 //g/L Indenol 7,2,3-c,d]pyrene <10 //g/L lodomethane (Methyl iodide) <15 //g/L Iron, total recoverable 86 14 //g/L Isobutyl alcohol <100 //g/L Isodrin <10 //g/L Isophorone <10 //g/L Isosafrole <10 //g/L Kepone <10 //g/L Lead, total recoverable <3.0 <3.0 //g/L Lindane < 1,250 //g/L Manganese, total recoverable 2.1 2.3 //g/L Mercury, total recoverable <0.20 //g/L Methacrylonitrile <50 //g/L Methapyrilene <10 //g/L Methoxychlor <0.51 //g/L 2-Methyl-4,6-diniwophenol <10 //g/L Methyl ethyl ketone <1.0 //g/L Methyl isobutyl ketone <10 //g/L Methyl methacrylate <5.0 //g/L Methyl methanesulfonate <10 //g/L 3-Methylcholanthrene <10 //g/L 2-Methylnaphthalene <10 //g/L Naphthalene <10 //g/L 1,4-Naphthoquinone <10 //g/L 1-Naphthylamine <10 //g/L 2-Naphthylamine <10 //g/L Nickel, total recoverable <4.0 <4.0 <4.0 //g/L GE Nitrate-nitrite as nitrogen 110 118 112 //g/L GE o-Nitroaniline <10 //g/L m-Nitroaniline <10 //g/L p-Nitroaniiine <10 //g/L Nitrobenzene <10 //g/L 2-Nitrophenol <10 //g/L 4-Nitrophenol <10 //g/L 4-Nitroquinoline-1 -oxide <10 //g/L N-Nitrosodi-n-butylamine <10 //g/L N-Nitrosodiethylamine <10 //g/L N-Nitrosodimethylamine <10 //g/L N-Nitrosodiphenylamine <10 //g/L N-Nitrosodipropylamine <10 //g/L N-Nitrosomethylethylamine <10 //g/L N-Nitrosomorpholine <10 //g/L N-Nitrosopiperidine <10 //g/L N-Nitrosopyrrolidine <10 //g/L 5-Nitro-o-toluidine <10 //g/L Nonvolatile beta 4.2E-02 pCi/L 0,0,0-Triethyl phosphorothioate <10 //g/L Octachlorodibenzo-p-dioxin <0.10 //g/L Octachlorodibenzo-p-furan <0.10 //g/L Parathion <0.051 //g/L Parathion methyl <0.051 //g/L PCB 1016 <0.51 //g/L PCB 1221 <0.51 //g/L PCB 1232 <0.51 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-46 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 9D continued ANALYTICAL DATA Analvte 1094 2Q94 3Q94 4Q94 Pi l/lod Unit Lab Flag PCB 1242 <0.51 //g/L PCB 1248 <0.51 //g/L PCB 1254 <0.51 //g/L PCB 1260 <0.51 //g/L Pentachlorobenzene <10 //g/L 1,2,3,7,8-PCDD <0.055 //g/L Pentachlorodibenzo-p-dioxin isomers <0.055 //g/L 1,2,3,7,8-PCDF <0.055 //g/L Pentachloroethane <10 //g/L Pentachloronitro benzene <10 //g/L Pentachlorophenol <10 //g/L Phenacetin <10 //g/L Phenanthrene <10 //g/L Phenol <10 //g/L p-Phenylenediamine <10 //g/L Phorate <0.10 //g/L 2-Picoline <10 //g/L Pronamid <10 //g/L Propionitrile <200 //g/L Pyrene <10 //g/L Pyridine <10 //g/L Radium, total alpha-emitting 2.2E + 00 8.0E-01 9.0E-01 7.0E-01 1 J pCi/L GP 0 Safrole <10 //g/L Selenium, total recoverable <2.0 //g/L Silver, total recoverable <2.0 <2.0 <2.0 i //g/L GE 0 Styrene <10 //g/L Sulfide <1,000 //g/L Sulfotepp <10 //g/L 1,2,4,5-Tetrachlorobenzene <10 //g/L 2,3,7,8-TCDD < 0.045 //g/L 2,3,7,8-TCDF < 0.040 //g/L Tetrachlorodibenzo-p-dioxin isomers <0.045 //g/L Tetrachlorodibenzo-p-furan isomers <0.040 //g/L 1,1,1,2-Tetrachloroethane <1.0 //g/L 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 •el.O 1 //g/L GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,3,4,6-Tetrachlorophenol <10 //g/L Thallium, total recoverable <2.0 //g/L Thionazin <10 //g/L Tin, total recoverable 3.0 //g/L Toluene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 o-Toluidine <10 //g/L Total organic carbon 1,580 1,040 <1,000 1,120 i J //g/L GE 0 Total organic halogens <5.0 <5.0 <5.0 <5.0 1 //g/L GE 0 Toxaphene <0.25 //g/L 2,4,5-TP (Silvex) < 0.00046 //g/L 1,2,4-Trichlorobenzene <10 //g/L 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 1 W/L GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Trichloroethylene <1.0 <1.0 <1.0 <1.0 i //g/L GE 0 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 i //g/L GE 0 2,4,5-Trichlorophenol <10 //g/L 2,4,6-Trichlorophenol <10 //g/L 2,4,5-T < 0.00046 //g/L 1,2,3-Trichloropropane <1.0 //g/L 1,3,5-Trinitrobenzene <10 //g/L Vanadium, total recoverable <8.0 //g/L Vinyl acetate <10 //g/L Xylenes <2.0 //g/L Zinc, total recoverable 26 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-47 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WELL AMB 10A

SRS Coord. Lat/Lonqitude Screen Zone Elevation Too of Casino Casing Pump Screen Zone

N103326.4 33.338163 °N 111.4-106.4 ft msl 366.5 ft msl 4" PVC S MCBC E51410.0 81.732180 °W

SAMPLE DATE 02/01/94 05/05/94 07/20/94 11/01/94

FIELD DATA

Analvte 1Q94 2Q94 3Q94 4Q94 Unit

Water elevation 218.2 219.1 218.6 218.7 ft msl Depth to water 148.3 147.4 147.9 147.8 ft PH 11.5 10.1 11.2 9.8 PH Sp. conductance 472 863 608 703 //S/cm Water temperature 14.5 14.1 20.8 18.2 °c Alkalinity as CaC03 122 349 158 79 mg/L Turbidity 7 13 10 8.6 NTU Volume purged 0.9 0.9 1.0 1.1 well vol. Sampling code X X X X

ANALYTICAL DATA

H ST Analvte 10.94 2Q94 3Q94 4094 DF Mod Unit Lab Flag

Acenaphthene <10 //g/L Acenaphthylene <10 //g/L Acetone <100 //g/L Acetonitrile (Methyl cyanide) <5.0 //g/L Acetophenone <10 //g/L 2-Acetylaminofluorene <10 //g/L Acrolein <20 //g/L Acrylonitrile <20 //g/L Aldrin < 0.050 //g/L Allyl chloride <50 //g/L Aluminum, total recoverable 736 701 //g/L 4-Aminobiphenyl <10 //g/L Aniline <10 //g/L Anthracene <10 //g/L Antimony, total recoverable <2.0 //g/L Aramite <10 //g/L Arsenic, total recoverable <2.0 //g/L Barium, total recoverable 48 //g/L Benzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 alpha-Benzene hexachloride < 0.050 //g/L beta-Benzene hexachloride < 0.050 //g/L delta-Benzene hexachloride < 0.050 //g/L Benzolalanthracene <10 //g/L Benzo|6]fluorantbene <10 //g/L Benzo(£)fluoranthene <10 //g/L Benzo(ff,A,/Jperylene <10 //g/L Benzolalpyrene <10 //g/L Benzyl alcohol <10 //g/L Beryllium, total recoverable <3.0 //g/L Bis(2-chloroethoxy) methane <10 //g/L Bis(2-chloroethyl) ether <10 //g/L Bis(2-chloroisopropyl) ether <10 //g/L Bis(2-ethylhexyl) phthalate <10 //g/L Bromodichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Bromoform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 4-Bromophenyl phenyl ether <10 //g/L Butylbenzyl phthalate <10 //g/L 2-sec-Butyl-4,6-dinitrophenol <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-48 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WellAMBlOA continued

ANALYTICAL DATA H ST Analyte 1Q94 2Q94 3Q94 4Q94 2£ Mod Unit Lab Flag

Cadmium, total recoverable <2.0 <2.0 Pall Carbon disulfide <10 pa/i Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 pan GE 0 Chlordane <0.50 pa/i Chloride 2,190 1,790 1 pan GE 0 4-Chloroaniline <10 pall Chlorobenzene <1.0 <1.0 <1.0 <1.0 1 pan GE 0 Chlorobenzilate <10 pan 4-Chloro-m-cresol <10 pan Chloroethane <1.0 <1.0 <1.0 <1.0 i pan GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 i pan GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 1 pan GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 pan GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 ' 1 pan GE 0 2-Chloronaphthalene <10 pan 2-Chlorophenol <10 pan 4-Chiorophenyl phenyl ether <10 pan Chloroprene <200 pan Chromium, total recoverable 4.5 Pan Chrysene <10 pan Cobalt, total recoverable <4.0 pan Copper, total recoverable <4.0 pan o-Cresol (2-Methylphenol) <10 pan m,p-Cresol <10 pan Cyanide <5.0 <5.0 <5.0 t nail GE 0 p,p'-DDD <0.10 pan p,p'-DDE <0.10 pan p,p'-DDT <0.10 pan Diallate <10 pan Dibenzla,h]anthracene <10 pan Dibenzofuran <10 pan Dibromochloromethane <1.0 <1.0 <1.0 <1.0 1 pan GE 0 1,2-Dibromo-3-chloropropane <5.0 pan 1,2-Dibromoethane <20 pan Dibromomethane <1.0 naii Di-n-butyl phthalate <10 pan 1,2-Dichlorobenzene <10 pan 1,3-Dichloro benzene <10 pan 1,4-Dichlorobenzene <10 pan 3,3'-Dichlorobenzidine <10 pan trans-1,4-Dichloro-2-butene <30 pan Dichlorodifluoromethane <1.0 pan 1,1-Dichloroethane <1.0 <1.0 <1.0 <1.0 i pan GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 pan GE 0 1,1 -Oichloroethylene <1.0 <1.0 <1.0 <1.0 1 pan GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 pan GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 1 pan GE 0 2,4-Oichlorophenol <10 pan 2,6-Dichlorophenol <10 mil 2,4-Dichlorophenoxyacetic acid <0.0015 pan 1,2-Dichloropropane <1.0 <-i.O <1.0 <1.0 i pan GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 pan GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 pan GE 0 Dieldrin < 0.025 pan Diethyl phthalate <10 paii Dimethoate <10 pan 2,4-Dimethyl phenol <10 pan Dimethyl phthalate <10 pan p-Dimethylaminoazobenzene <10 paii 7,12-Dimethylbenzlalanthracene <10 pan 3,3'-Dimethylbenzidine <10 pan a,a-Dimethylphenethylamine <10 pan

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-49 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WellAMBlOA continued

ANALYTICAL DATA

H SJ Analvte 1094 2094 3Q94 4Q94 DF Mod Unit Lab Flap

1,3-Dinitrobenzene <10 //g/L 2,4-Dinitrophenol <45 //g/L 2,4-Dinitrotoluene <10 //g/L 2,6-Dinitrotoluene <10 //g/L Di-n-octyl phthalate <10 //g/L 1,4-Dioxane <10 //g/L Diphenylamine <10 //g/L Disulfoton <10 //g/L Endosulfan I <0.10 //g/L Endosulfan II <0.10 //g/L Endosulfan sulfate <0.10 //g/L Endrin <50 //g/L Endrin aldehyde <0.10 //g/L Ethyl methacrylate <10 //g/L Ethyl methanesulfonate <10 //g/L Ethylbenzene <1.0 <1.0 <1.0 *1.0 1 //g/L GE 0 Famphur <10 //g/L Fluoranthene <10 //g/L Fluorene <10 //g/L Fluoride <100 <:20 1 //g/L GE 0 Gross alpha <5.0E-01 9.6E-02 pCi/L Heptachlor < 0.050 //g/L Heptachlor epoxide < 0.050 //g/L 1,2,3,4,6,7,8-HPCDD < 0.065 //g/L Heptachlorodibenzo-p-dioxin isomers <0.065 //g/L 1,2,3,4,6,7,8-HPCDF <0.045 //g/L Heptachlorodibenzo-p-fjran isomers < 0.045 //g/L Hexacblorobenzene <10 //g/L Hexachloro butadiene <10 //g/L Hexachlorocyclopentadiene <10 ug!L 1,2,3,4,7,8-HXCDD < 0.045 //g/L Hexachlorodibenzo-p-dioxin isomers < 0.045 //g/L 1,2,3,4,7,8-HXCDF < 0.040 //g/L Hexachlorodibenzo-p-furan isomers < 0.040 //g/L Hexachloroethane <10 //g/L Hexachlorophene <10 //g/L Hexachloropropene <10 //g/L 2-Hexanone <10 //g/L Indenol 7,2.3-c,d]pyrene <10 //g/L lodomethane (Methyl iodide) < 15 //g/L Iron, total recoverable 16 21 //g/L Isobutyl alcohol <100 //g/L Isodrin <10 //g/L Isophorone <10 //g/L Isosafrole <10 //g/L Kepone <10 //g/L Lead, total recoverable <3.0 <3.0 //g/L Lindane < 1,250 //g/L Manganese, total recoverable <2.0 2.1 //g/L Mercury, total recoverable <0.20 //g/L Methacrylonitrile <50 //g/L Methapyrilene <10 //g/L Methoxychlor <0.50 //g/L 2-Methyl-4,6-dinitrophenol <10 //g/L Methyl ethyl ketone < 1.0 //g/L Methyl isobutyl ketone <10 //g/L Methyl methacrylate <5.0 //g/L Methyl methanesulfonate <10 //g/L 3-Methylcholanthrene <10 //g/L 2-Methyinaphthalene <10 //g/L Naphthalene <10 //g/L 1,4-Naphthoquinone <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-50 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WellAMBlOA continued

ANALYTICAL DATA H ST Analvte 1^094 2Q94 3Q94 4Q94 BE Mod Unit Lab Fl 1-Naphthylamine <10 //g/L 2-Naphthylamine <10 //g/L Nickel, total recoverable <8.0 <4.0 <4.0 1 //g/L GE 0 Nitrate-nitrite as nitrogen 130 152 231 1 //g/L GE 0 o-Nitroaniline <10 //g/L m-Nitroaniline <10 //g/L p-Nitroaniline <10 //g/L 2-Nitrophenol <10 //g/L 4-Nitrophenol <10 //g/L 4-Nitroquinoline-1 -oxide <10 //g/L N-Nitrosodi-n-butylamine <10 //g/L N-Nitrosodiethylamine <10 //g/L N-Nitrosodimethylamine <10 //g/L N-Nitrosodiphenyiamine <10 //g/L N-Nitrosodipropylamine <10 //g/L N-Nitrosomethylethylamine <10 //g/L N-Nitrosomorpholine <10 //g/L <10 N-Nitrosopiperidine //g/L <10 //g/L N-Nitrosopyrrolidine <10 5-Nitro-o-toluidine //g/L Nonvolatile beta 1.0E + 01 pCi/L 0,0,0-Trtethyl phosphorathiaate <10 M9'L Octachiorodibenzo-p-dioxin <0.10 //g/L Octachlorodibenzo-p-furan <0.10 //g/L Parathion < 0.050 //g/L Parathion methyl < 0.050 //g/L PCB 1016 <0.50 //g/L PCB 1221 <0.50 //g/L PCB 1232 <0.50 //g/L PCB 1242 <0.60 //g/L PCB 1248 <0.50 //g/L PCB 1254 <0.50 //g/L PCB 1260 <0.50 //g/L Pentachloro benzene <10 //g/L 1.2,3,7,8-PCDD <0.055 //g/L Pentachlorodibenzo-p-dioxin isomers < 0.055 //g/L 1,2,3,7,8-PCDF < 0.055 //g/L Pentachloroethane <10 //g/L Pentachloronitro benzene <10 //g/L Pentachlorophenol <10 //g/L Phenacetin <10 //g/L Phenanthrene <10 //g/L Phenol <10 //g/L p-Phenylenediamine <10 //g/L Phorate <0.10 //g/L 2-Picoline <10 //g/L Pronamid <10 //g/L Propionittite <200 j/giL Pyrene <10 //g/L Pyridine <10 //g/L Radium, total alpha-emitting 9.0E-01 <4.0E-01 O.OE-01 2.0E-01 1 Ul pCi/L GP 0 Safrole <10 //g/L Selenium, total recoverable <2.0 //g/L Silver, total recoverable <4.0 <2.0 <2.0 1 //g/L GE 0 Styrene <10 //g/L Sulfide <1,000 //g/L Sulfotepp <10 //g/L 1,2,4,5-Tetrachlorobenzene <10 //g/L 2,3,7,8-TCDD < 0.045 //g/L 2,3,7,8-TCDF < 0.040 //g/L Tetrachlorodibenzo-p-dioxin isomers < 0.045 //g/L Tetrachlorodibenzo-p-furan isomers < 0.040 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-51 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-061& Unclassified

WellAMEMOA continued

ANALYTICAL DATA

H ST Analyte 1Q94 2094 3Q94 4094 OF Mod Unit Lab Flag

1,1,1,2-Tetrachloroethane <1.0 //g/L 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,3,4,6-Tetrachiorophenol <10 //g/L Thallium, total recoverable <2.0 //g/L Thionazin <10 //g/L Tin, total recoverable 30 //g/L Toluene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 o-Toluidine <10 //g/L Total organic carbon 1,040 2,130 1,230 1,630 1 J //g/L GE 0 Total organic halogens 8.6 <5.0 18 <5.0 1 //g/L GE 0 Toxaphene <0.24 //g/L 2,4,5-TP (Silvex) < 0.00044 //g/L 1,2,4-Trichlorobenzene <10 //g/L 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Trichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,4,5-Trichlorophenol <10 //g/L 2,4,6-Trichlorophenol <10 //g/L 2,4,5-T < 0.00044 //g/L 1,2,3-Trichloropropane <1.0 //g/L 1,3,5-Trinitrobenzene <10 //g/L Vanadium, total recoverable <8.0 //g/L Vinyl acetate <10 //g/L Xylenes <2.0 //g/L Zinc, total recoverable 21 //g/L

WELL AMB 10B

SRS Coord. Lat/Longitude Screen Zone Elevation Top of Casino. Casino Pump Screen Zone

N103337.3 33.338201 °N 154.3-149.3 ft msl 366.4 ft msl 4- PVC S LL E51418.3 81.732180 °W

SAMPLE DATE 02/12/94 04/25/94 08/23/94 10/31/94

FIELD DATA

Analvte 1Q94 2094 3Q94 4Q94 Unit

Water elevation 223.9 223.5 224.0 223.7 ft msl Depth to water 142.5 142.9 142.4 142.8 ft pH 6.1 6.2 5.8 5.9 PH Sp. conductance 59 63 61 51 //S/cm Water temperature 17.3 19.0 18.9 18.0 °C

Alkalinity as CaC03 19 18 10 4 mg/L Turbidity 1 1 1 1 NTU Volume purged 3.6 5.5 3.3 5.2 well vol. Sampling code

ANALYTICAL DATA

JH ST Analvte 1Q94 2094 3094 4Q94 DF Mod Unit Lab Flag

Acenaphthene <10 //g/L Acenaphthylene <10 //g/L Acetone <100 //g/L Acetonitrile (Methyl cyanide) <5.0 //g/L Acetophenone <10 //g/L 2-Acetylaminofluorene <10 //g/L Acrolein <20 //g/L Acrylonitrile <20 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-S2 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Wel!AMB10B continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3Q94 4094 DF IMo d Unit Lab Fj

Aldrin <0.052 //g/L Allyl chloride <50 //g/L Aluminum, total recoverable 23 <20 //g/L 4-Aminobiphenyl <10 //g/L Aniline <10 //g/L Anthracene <10 //g/L Antimony, total recoverable <2.0 //g/L Aramite <10 //g/L Arsenic, total recoverable <2.0 /g/L Barium, total recoverable 16 //g/L Benzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 alpha-Benzene hexachloride < 0.052 //g/L beta-Benzene hexachloride < 0.052 //g/L delta-Benzene hexachloride < 0.052 //g/L Benzoialanthracene <10 //g/L BenzoIAIfluoranthene <10 //g/L Benzo[*]fluoranthene <10 //g/L Benzo(p,ft,/]perylene <10 //g/L Benzolslpyrene <10 //g/L Benzyl alcohol <10 //g/L Beryllium, total recoverable <3.0 //g/L Bis(2-chloroethoxy) methane <10 //g/L Bis(2-chloroethyl) ether <10 //g/L Bis(2-chloroisopropyl) ether <5.0 //g/L Bis(2-ethylhexyt) phthalate <10 //g/L Bromodichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Bromoform <1.0 <1.0 <1.0 <1.0 1 W/L GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 4-Bromophenyl phenyl ether <10 Z^/L Butylbenzyl phthalate <10 /g/L 2-sec-Butyl-4,6-dinitrophenol <10 //g/L Cadmium, total recoverable <2.0 <2.0 /g/L Carbon disulfide <10 /g/L Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlordane <0.52 //g/L Chloride 3,430 3,940 1 /g/L WA 0 4-Chloroaniline <10 /g/L Chlorobenzene <1.0 <1.0 <1.0 <1.0 1 /g/L GE 0 Chlorobenzilate <10 /g/L 4-Chloro-m-cresol <10 //g/L Chloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 1 /g/L GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 1 /g/L GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 1 /g/L GE 0 2-Chloronaphthalene <10 /g/L 2-Chlorophenol <10 /g/L 4-Chlorophenyl phenyl ether <10 /g/L Chloroprene <200 /g/L Chromium, total recoverable <4.0 /g/L Chrysene <10 //g/L Cobalt, total recoverable <4.0 /g/L Copper, total recoverable <4.0 //g/L o-Cresol (2-Methylphenol) <10 //g/L m,p-Cresol <10 /g/L Cyanide <5.0 <5.0 <5.0 1 /g/L GE 0 p,p'-DDD <0.10 //g/L p,p'-DDE <0.10 //g/L p,p'-DDT <0.10 /g/L Diallate <10 /g/L Dibenzls,/)]anthracene <10 //g/L Dibenzofuran <10 /g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-S3 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WellAMBlOB continued

ANALYTICAL DATA

H ST Analyte 1094 2094 3Q94 4Q94 Df Mod Unit Lab Rag

Dibromochloromethane < 1.0 < 1.0 <1.0 <1.0 1 ijgll GE 0 1,2-Dibromo-3-chloropropane <5.0 fig/L 1,2-Dibromoethane <20 mil Dibromo methane <1.0 mil Di-n-butyl phthalate <10 mil 1,2-Dichloro benzene <10 yg/L 1,3-Dichlorobenzene <10 mil 1,4-Dichlorobenzene <10 mil 3,3'-Dichlorobenzidine

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-54 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 10B continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3094 4Q94 DF Mod Unjt Lab flag

Hexachlorodibenzo-p-dioxin isomers < 0.045 //g/L 1,2,3,4,7,8-HXCDF < 0.040 ugll Hexachlorodibenzo-p-furan isomers < 0.040 //g/L Hexachloroethane <10 //g/L Hexachlorophene <10 //g/L Hexachloropropene <10 //g/L 2-Hexanone <10 //g/L Indenol 1,2,3-c,d\pyrene <10 //g/L lodomethane (Methyl iodide) <15 //g/L Iron, total recoverable 8.9 70 //g/L Isobutyl alcohol <100 //g/L Isodrin <10 //g/L Isophorone <10 //g/L Isosafrole <10 //g/L Kepone <10 //g/L Lead, total recoverable <3.0 <3.0 //g/L Lindane < 1,250 //g/L Manganese, total recoverable 13 18 //g/L Mercury, total recoverable <0.20 //g/L Methacrylonitrile <50 //g/L Methapyrilene <10 //g/L Methoxychlor <0.52 //g/L 2-Methyl-4,6-dinitrophenol <10 //g/L Methyl ethyl ketone <1.0 //g/L Methyl isobutyl ketone <10 //g/L Methyl methacrylate <5.0 //g/L Methyl methanesulfonate <10 //g/L 3-Methylcholanthrene <10 //g/L 2-Methylnaphthalene <10 //g/L Naphthalene <10 //g/L 1,4-Naphthoquinone <10 //g/L 1-Naphthylamine <10 //g/L 2-Naphthylamine <10 //g/L Nickel, total recoverable 4.0 <4.0 <4.0 1 //g/L GE 0 Nitrate as nitrogen 126 1 //g/L WA 0 Nitrate-nitrite as nitrogen 70 97 576 1 //g/L GE 0 o-Nitroaniline <10 //g/L m-Nitroaniline <10 //g/L p-Nitroaniline <10 //g/L Nitrobenzene <10 //g/L 2-Nitrophenol <10 //g/L 4-Nitrophenol <10 //g/L 4-Nitroquinoline-1 -oxide <10 //g/L N-Nitrosodi-n-butylamine <10 //g/L N-Nitrosodiethylamine <10 //g/L N-Nitrosodimethylamine <10 //g/L N-Nitrosodiphenylamine <10 //g/L N-Nitrosodipropylamine <10

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-55 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WellAMBlOB continued ANALYTICAL DATA

ST Analvte 1094 2Q94 3Q94 4Q94 DF Mod Unit Lab R

PCB 1242 <0.52 A9/L PCB 1248 <0.52 »9ll PCB 1254 <0.52 M9li- PCB 1260 <0.52 //g/L Pentachlorobenzene <10 //g/L 1,2,3,7,8-PCDD <0.055

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-56 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WELL AMB 10D

SRS Coord. Lat/Lonqitude Screen Zone Elevation Top of Casina Casinq Pump Screen Zone

N103293.4 33.338166 °N 239.4-219.4 ft msl 365.5 ft msl 4" PVC S M E51456.0 81.731995 °W

SAMPLE DATE 02/12/94 04/25/94 08/23/94 11/01/94

FIELD DATA

Analvte 1094 2094 3Q94 *4Q94 Unit

Water elevation 236.1 236.3 235.8 236.5 ft msl Depth to water 129.4 129.2 129.7 129.0 ft pH 5.5 5.4 5.4 5.5 PH Sp. conductance 47 50 47 44 //S/cm Water temperature 17.0 18.1 18.9 17.8 °C

Alkalinity as CaC03 7 9 9 9 mg/L Turbidity 0 0 0 1 NTU Volume purged 9.6 17.9 6.4 8.0 well vol. Sampling code

ANALYTICAL DATA

H ST Analyte 1Q94 2Q94 3Q94 40.94 DF Mod Unit Lab Flag

Acenaphthene <9.7 //g/L Acenaphthylene <9.7 M9/L Acetone <100 //g/L Acetonitrile (Methyl cyanide) <5.0 //g/L Acetophenone <9.7 //g/L 2-Acetylaminofluorene <9.7 //g/L Acrolein <20 pg/L Acrylonitrile <20 //g/L Aldrin < 0.048 //g/L Ally] chloride <50 //g/L Aluminum, total recoverable < 20 230 //g/L 4-Aminobiphenyl <9.7 //g/L Aniline <9.7 //g/L Anthracene <9.7 //g/L Antimony, total recoverable <2.0 //g/L Aramite <9.7 //g/L Arsenic, total recoverable <2.0 //g/L Barium, total recoverable 6.0 //g/L Benzene <1.0 <1.0 <1.0 <1.0 //g/L GE alpha-Benzene hexachloride < 0.048 //g/L beta-Benzene hexachloride <0.048 //g/L delta-Benzene hexachloride < 0.048 //g/L Benzotalanthracene <9.7 //g/L Benzoic jfluoranthene <9.7 //g/L Benzol/rltluoranthene <9.7 //g/L Benzolff,/),/lperylene <9.7 //g/L Benzolalpyrene <9.7 //g/L Benzyl alcohol <9.7 //g/L Beryllium, total recoverable <3.0 //g/L Bis(2-chloroethoxy) methane <9.7 //g/L Bis(2-chloroethyl) ether <9.7 //g/L Bis(2-chloroisopropyl) ether <5.0 //g/L Bis(2-ethylhexyl) phthalate <9.7 //g/L Bromodichloromethane < 1.0 <1.0 <1.0 <1.0 //g/L GE Bromoform < 1.0 <1.0 <1.0 <1.0 //g/L GE Bromomethane (Methyl bromide) < 1.0 <1.0 <1.0 <1.0 //g/L GE <9.7 4-Bromophenyl phenyl ether //g/L <9.7 Butylbenzyl phthalate //g/L <9.7 2-sec-Butyl-4,6-dinitrophenol //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-57 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WellAMBIOD continued

ANALYTICAL DATA H ST Analyte 1Q94 2Q94 3094 4Q94 2£ iVlo d Unit Lab Flag Cadmium, total recoverable <2.0 <2.0 //g/L Carbon disulfide <10 //g/L Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlordane <0.48 //g/L Chloride 3,200 2,430 1 //g/L GE 0 4-Chloroaniiine <9.7 //g/L Chlorobenzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chlorobenzilate <9.7 //g/L 4-Chloro-m-cresol <9.7 //g/L Chloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloronaphthalene <9.7 //g/L 2-Chlorophenol <9.7 //g/L 4-Chlorophenyl phenyl ether <9.7 ugi\- Chloroprene <200 ng/i Chromium, total recoverable <4.0 //g/L Chrysene <9.7 //g/L Cobalt, total recoverable <4.0 ngii Copper, total recoverable 6.9 //g/L o-Cresol (2-Methylphenol) <9.7 A/g/L m,p-Cresol <9.7 //g/L Cyanide <5.0 <5.0 <5.0 1 //g/L GE 0 p,p'-DDD < 0.096 //g/L p,p'-DDE < 0.096 //g/L p,p'-DDT < 0.096 //g/L Diallate <9.7 //g/L Dibenz[a,/>]anthracene <9.7 //g/L Dibenzofuran <9.7 //g/L Dibromochloro methane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dibromo-3-chloropropane <5.0 //g/L 1,2-0ibromoethane <20 //g/L Dibromomethane <1.0 //g/L Di-n-butyl phthalate <9.7 //g/L 1,2-Dichlorobenzene <9.7 //g/L 1,3-Dichlorobenzene <9.7 //g/L 1,4-Dichlorobenzene <9.7 //g/L 3,3'-Dichlorobenzidine <9.7 //g/L trans-1,4-Dichloro-2-butene <30 //g/L Dichlorodifluoromethane <1.0 //g/L 1,1 -Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1 -Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,4-Dichlorophenol <9.7 //9/L 2,6-Dichlorophenol <9.7 //g/L 2,4-Dichlorophenoxyacetic acid < 0.0015 //g/L 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Dieldrin <0.025 //g/L Diethyl phthalate <9.7 //g/L Drmethoate <9.7 //g/L 2,4-Dimethyl phenol <9.7 //g/L Dimethyl phthalate <9.7 //g/L p-Dimethylaminoazobenzene <9.7 //g/L 7,12-Dimethylbenz|a)anthracene <9.7 //g/L 3,3'-Dimethylbenzidine <9.7 //g/L a,a-Dimethylphenethylamine <9.7 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWNIF D-58 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 10D continued

ANALYTICAL DATA

H ST Analvte 1Q94 2094 3094 4Q94 DF Mod Unit Lab Flag

1,3-Dinitrobenzene <9.7 //g/L 2,4-Dinitrophenol <44 j/g/L 2,4-Dinitrotoluene <9.7 //g/L 2,6-Dinitrotoluene <9.7 //g/L Di-n-octyl phthalate <9.7 //g/L 1,4-Dioxane <9.7 //g/L Diphenylamine <9.7 //g/L Disulfoton <9.7 //g/L Endosulfan I < 0.096 //g/L Endosulfan II < 0.096 //g/L Endosulfan sulfate < 0.096 //g/L Endrin <50 //g/L Endrin aldehyde < 0.096 //g/L Ethyl methacrylate <9.7 //g/L Ethyl methanesulfonate <9.7 //g/L Ethylbenzene < 1.0 <1.0 <1.0 <1.0 1 //g/L GE Famphur <9.7 //g/L Fluoranthene <9.7 //g/L Fluorene <9.7 //g/L Fluoride <100 <20 1 //g/L GE Gross alpha 9.4E-01 1.2E + O0 pCi/L Heptachlor < 0.048 //g/L Heptachlor epoxide < 0.048 //g/L 1,2,3,4,6,7,8-HPCDD < 0.065 //g/L Heptachlorodibenzo-p-dioxin isomers < 0.065 //g/L 1,2,3,4,6,7,8-HPCDF < 0.045 //g/L Heptachlorodibenzo-p-furan isomers < 0.045 //g/L Hexachlorobenzene <9.7 //g/L Hexachlorobutadiene <9.7 //g/L Hexachiorocyclopentadiene <9.7 //g/L 1,2,3,4,7,8-HXCDD < 0.045 //g/L Hexachlorodibenzo-p-dioxin isomers < 0.045 /ig/L 1,2,3.4,7,8-HXCDF < 0.040 //g/L Hexachlorodibenzo-p-furan isomers < 0.040 //g/L Hexachloroethane <9.7 //g/L Hexachlorophene <9.7 //g/L Hexachloropropene <9.7 //g/L 2-Hexanone <10 //g/L Indenol 7,2,3-cdlpyrene <9.7 //g/L lodomethane (Methyl iodide) <15 //g/L Iron, total recoverable 12 25 //g/L Isobutyl alcohol <100 //g/L Isodrin <9.7 //g/L Isophorone <9.7 //g/L Isosafrole <9.7 //g/L Kepone <9.7 //g/L Lead, total recoverable < 3.0 <3.0 //g/L Lindane < 1,250 //g/L Manganese, total recoverable 6.6 5.0 //g/L Mercury, total recoverable <0.20 //g/L Methacrylonitrile <50 //g/L Methapyrilene <9.7 //g/L Methoxychlor <0.48 //g/L 2-Methyl-4,6-dinitrophenol <9.7 /g/L Methyl ethyl ketone <1.0 //g/L Methyl isobutyl ketone <10 //g/L Methyl methacrylate <5.0 //g/L Methyl methanesulfonate <9.7 //g/L 3-Methylcholanthrene <9.7 //g/L 2-Methylnaphthalene <9.7 //g/L Naphthalene <9.7 //g/L 1,4-Naphthoquinone <9.7 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-59 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WellAMBIOD continued

ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3094 4094 DF Mod Unit Lab Flag

1-Naphthylamine <9.7 tmii. 2-Naphthylamine <9.7 //g/L Nickel, total recoverable <4.0 <4.0 <4.0 1 //g/L GE 0 Nitrate-nitrite as nitrogen 100 103 82 1 J //g/L GE 0 o-Nitroaniline <9.7 //g/L m-Nitroaniline <9.7 //g/L p-Nitroaniline <9.7 //g/L Nitrobenzene <9.7 //g/L 2-Nitrophenol <9.7 //g/L 4-Nitrophenol <9.7 //g/L 4-Nitroquinoline-1 -oxide <9.7 //g/L N-Nitrosodi-n-butylamine <9.7 //g/L N-Nitrosodiethylamine <9.7 //g/L N-Nitrosodimethylamine <9.7 //g/L <9.7 N-Nitrosodiphenylamine //g/L <9.7 N-Nitrosodipropylamine //g/L <9.7 //g/L N-Nitrosomethylethylamine <9.7 //g/L N-Nitrosomorpholine <9.7 N-Nitrosopiperidine <9.7 //g/L N-Nitrosopyrrolidine <9.7 //g/L 5-Nitro-o-toluidine //g/L Nonvolatile beta 1.2E+00 pCi/L 0,0,0-Triethyl phosphorothioate <9.7 //g/L Octachlorodibenzo-p-dioxin <0.10 //g/L Octachlorodibenzo-p-furan <0.10 //g/L Parathion < 0.048 //g/L Parathion methyl < 0.048 //g/L PCB 1016 <0.48 //g/L PCB 1221 <0.48 //g/L PCB 1232 <0.48 //g/L PCB 1242 <0.48 *g/L PCB 1248 <0.48 //g/L PCB 1254 <0.48 //g/L PCB 1260 <0.48 //g/L Pentachlorobenzene <9.7 //g/L 1,2,3,7,8-PCDD <0.055 //g/L Pentachlorodibenzo-p-dioxin isomers <0.055 //g/L 1,2,3,7,8-PCDF <0.055 //g/L Pentachloroethane <9.7 //g/L <9.7 Pentachloronitrobenzene //g/L <9.7 //g/L Pentachlorophenoi <9.7 //g/L Phenacetin <9.7 //g/L Phenanthrene <9.7 //g/L Phenol <9.7 //g/L p-Phenylenediamine //g/L < 0.096 Phorate //g/L <9.7 2-Picoline //g/L <9.7 Pronamid //g/L <200 Propionitrile //g/L <9.7 Pyrene //g/L Pyridine <9.7 Radium, total alpha-emitting 1.3E + 00 1.0E+00 1.7E + 00 1.2E + 00 1 J pCi/L GP 0 Safrole <9.7 //g/L Selenium, total recoverable <2.0 //g/L Silver, total recoverable <2.0 <2.0 <2.0 1 //g/L GE 0 Styrene <10 /»g/L Sulfide <1,000 //g/L Sulfotepp <9.7 //g/L 1,2,4,5-Tetrachlorobenzene <9.7 //g/L 2,3,7,8-TCDD < 0.045

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-60 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 10D continued

ANALYTICAL DATA H ST Analvte 1094 2Q94 3094 4Q94 Pf Mod Unit Lab Flag Tetrachlorodibenzo-p-furan isomers < 0.040 //g/U 1,1,1,2-Tetrachloroethane <1.0 //g/u 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 1 JjglL GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/u GE 0 2,3,4,6-Tetrachlorophenol <9.7 //g/u Thallium, total recoverable <2.0 //g/u Thionazin <9.7 //g/u Tin, total recoverable 2.6 //g/u Toluene <1.0 <1.0 <1.0 <1.0 1 //g/u GE 0 o-Toluidine <9.7 //g/u Total organic carbon 1,190 <1,000 1,300 1,240 1 J //g/u GE 0 Total organic halogens <5.0 <5.0 <5.0 <5.0 1 //g/u GE 0 Toxaphene <0.23 //g/U 2,4,5-TP (Silvex) < 0.00044 //g/u 1,2,4-Trichlorobenzene <9.7 W/L 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/U GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/U GE 0 Trichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/u GE 0 Trichiorofluoromethane <1.0 <1.0 <1.0 <1.0 1 //g/u GE 0 2,4,5-Trichlorophenol <9.7 //g/U 2,4,6-Trichlorophenol <9.7 //g/u 2,4,5-T < 0.00044 //g/u 1,2,3-Trichloropropane <1.0 //g/u 1,3,5-Trinitrobenzene <9.7 //g/u Vanadium, total recoverable <8.0 //g/u Vinyl acetate <10 //g/u Xylenes <2.0 pgit Zinc, total recoverable 14 //g/u

WELL AMB 10DD

SRS Coord. Lat/Lonaitude Screen Zone Elevation Top of Casinq Casino Pump Screen Zone

N103278.7 33.338133 °N 358.6-338.6 ft msl 365.4 ft msl 4" PVC S M E51456.0 81.731966 °W

SAMPUE DATE 02/12/94 04/25/94 08/23/94 11/01/94

FIEUD DATA

Analvte 1Q94 2094 3Q94 4094 Unit

Water elevation 359.1 359.3 ft msl Depth to water 6.3 6.1 ft pH 6.2 6.4 pH Sp. conductance 126 139 f/S/cm Water temperature 17.2 20.0 °C 54 65 mg/U Alkalinity as CaC03 Turbidity 1 1 NTU Volume purged 13.9 7.6 well vol Sampling code

ANAUYTICAL DATA

H ST Analvte 1Q94 2Q94 3Q94 4Q94 DF Mod Unit Lab Flag

Aluminum, total recoverable <20 <20 //g/u Barium, total recoverable 12 //g/u Benzene <1.0 <1.0 <1.0 <£1.0 1 /^/L GE 0 Bromodichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Bromoform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <:1.0 1 pgii GE 0 Cadmium, total recoverable <2.0 //g/u

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-61 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 10DD continued

ANALYTICAL DATA

H ST Analyte 1Q94 2Q94 3094 4094 DF Mod Unit Lab Fl.

Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 ugn. GE 0 Chloride 2,540 1,410 fg/i GE 0 Chlorobenzene <1.0 <1.0 <1.0 <1.0 wn. GE 0 Chloroethane <1.0 <1.0 <1.0 <1.0 V9H- GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 fig/i- GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 <1.0 WIL GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 uan- GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 2.3 <1.0 GE 0 Cobalt, total recoverable <4.0 Copper, total recoverable <4.0 Cyanide <5.0 <5.0 <5.0 A9/L GE 0 Dibromochloromethane <1.0 <1.0 <1.0 <1.0 //g/L GE 0 1,1-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 ,/g/L GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 //g/L GE 0 1,1 -Dichloroethylene <1.0 <1.0 <1.0 <1.0 P9'L GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 P9/L GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 M9H- GE 0 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 //g/L GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 JO'L GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 W'L GE 0 Ethylbenzene <1.0 <1.0 <1.0 <1.0 mi\- GE 0 Fluoride <100 <20 f9/i. GE 0 Gross alpha 6.6E-01 -9.0E-01 pCi/L Iron, total recoverable 7,310 6,750 //g/L Lead, total recoverable <3.0 <3.0 //g/L Manganese, total recoverable 337 330 HB/L Nickel, total recoverable <4.0 <4.0 <4.0 GE 0 Nitrate as nitrogen <20 Nitrate-nitrite as nitrogen <50 <50 <50 GE 0 Nonvolatile beta 9.0E-01 pCi/L Radium, total alpha-emitting 9.0E-01 <0.0E + 00 -1.0E-01 1.0E-01 Ul pCi/L GP 0 Radium-226 1.6E-01 pCi/L Ftadium-228 2.8E + 00 pCi/L Selenium, total recoverable <2.0 //g/L Silver, total recoverable <2.0 <2.0 mn- GE 0 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 mn. GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 mn- GE 0 Toluene <1.0 <1.0 <1.0 <1.0 /rg/L GE 0 Total organic carbon <1,000 1,490 3,320 2,880 m'L GE 0 Total organic halogens <5.0 <5.0 12 <5.0 H9'L GE 0 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 pgn- GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 wn- GE 0 Trichloroethylene <1.0 <1.0 <1.0 <1.0 mn. GE 0 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 M9H- GE 0 Zinc, total recoverable 3.5 ngn-

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-62 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WELL AMB 11B

SRS Coord. Lat/Lonqitude Screen Zone Elevation Too of Casino Casing Pump Screen Zone

N103154.2 33.338615 °N 184.5-174.5 ft msl 364.6 ft msl 4" PVC S UL E51919.5 81.730503 °W

SAMPLE DATE 02/11/94 04/22/94 08/24/94 10/28/94

FIELD DATA

Analvte 1094 2Q94 3Q94 4094 Unit

Water elevation 223.9 223.8 223.6 223.4 ft msl Depth to water 140.8 140.9 141.0 141.2 ft pH 6.0 5.9 5.8 5.8 pH Sp. conductance 43 51 44 42 //S/cm Water temperature 17.3 18.3 18.3 17.7 °C

Alkalinity as CaC03 10 22 10 1 mg/L Turbidity 1 3 1 1 NTU Volume purged 4.6 3.7 5.1 3.6 well vol. Sampling code

ANALYTICAL DATA

H ST Analyte 1Q94 20.94 3Q94 4Q94 DF Mod Unit Lab Flag

Acenaphthene <10 //g/L Acenaphthylene <10 //g/L Acetone <100 //g/L Acetonitrile (Methyl cyanide) <5.0 //g/L Acetophenone <10 //g/L 2-Acetylaminofluorene <10 //g/L Acrolein <20 //g/L Acrylonitrile <20 //g/L Aldrin <0.050 //g/L Allyl chloride <50 //g/L Aluminum, total recoverable 240 31 fia/L 4-Aminobi phenyl <10 //g/L Aniline <10 //g/L Anthracene <10 //g/L Antimony, total recoverable <2.0 imn- Aramite <10 //g/L Arsenic, total recoverable <2.0 //g/L Barium, total recoverable 33 //g/L Benzene < 1.0 <1.0 <1.0 <1.0 /ig/L GE alpha-Benzene hexachloride < 0.050 //g/L beta-Benzene hexachloride < 0.050 //g/L delta-Benzene hexachloride < 0.050 //g/L Benzolajanthracene <10 //g/L BenzoIAIfluoranthene <10 //g/L Benzo[*)fluoranthene <10 //g/L Benzo[ov/>,/1perylene <10 //g/L BenzoMpyrene <10 mil Benzyl alcohol <10 //g/L Beryllium, total recoverable <3.0 */g/L Bis(2-chloroethoxy) methane <10 //g/L Bis(2-chloroethyl) ether <10 //g/L Bis(2-chloroisopropyl) ether <5.0 //g/L Bis(2-ethylhexyl) phthalate <10 //g/L Bromodichloromethane < 1.0 <1.0 <1.0 <1.0 //g/L GE Bromoform < 1.0 <1.0 <1.0 <1.0 //g/L GE Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <1.0 //g/L GE 4-Bromophenyl phenyl ether <10 <10 //g/L Butylbenzyl phthalate <10 //g/L 2-sec-Buty 1-4,6-dinitrophenol //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-63 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WellAMBlIB continued

ANALYTICAL DATA

H ST Analyte 1Q94 2094 3Q94 4094 Pf Jvlo d Unit Lab Flag Cadmium, total recoverable <2.0 <2.0 mil Carbon disulfide <10 m/i Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Chlordane <0.50 mil Chloride 3,810 3,440 1 mil GE 0 4-Chloroaniline <10 mil Chiorobenzene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Chlorobenzilate <10 mil 4-Chloro-m-cresol <10 mil Chloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 1 mil GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 1 mil GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 1 mil GE 0 2-Chloronaphthalene <10 mil 2-Chlorophenol <10 mil 4-Chlorophenyl phenyl ether <10 mil Chloroprene <200 mil Chromium, total recoverable <4.0 m/i Chrysene <10 rn'i Cobalt, total recoverable <4.0 mil Copper, total recoverable <4.0 mil o-Cresol (2-Methylphenol) <10 mil m,p-Cresol <10 mil Cyanide <5.0 <5.0 <5.0 1 mil GE 0 p,p'-DDD <0.10 mil p,p'-DDE <0.10 mil p,p'-DDT <0.10 mil Diallate <10 m/i Dibenz[a,/»anthracene <10 m/i Dibenzofuran <10 m/i Dibromochloromethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 1,2-Dibromo-3-chloropropane <5.0 mil 1,2-Dibromoethane <20 mil Dibromomethane <1.0 mil Di-n-butyl phthalate <10 m/i 1,2-Dichlorobenzene <10 mil 1,3-Dichlorobenzene <10 mil 1,4-Dichlorobenzene <10 mil 3,3'-Dichlorobenzidine <10 mil trans-1,4-Dichloro-2-butene <30 mil Dichlorodifluoro methane <1.0 m/i 1,1 -Dichloroethane <1.0 <1.0 <1.0 <1.0 1 m/i GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 1,1 -Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 2,4-Dichlorophenol <10 mil 2,6-Dichlorophenol <10 mil 2,4-Dichlorophenoxyacetic acid <0.0015 mil 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 x/g/L GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 m/i GE 0 Dieidrin < 0.025 mil Diethyl phthalate <10 mil Dimethoate <10 mil 2,4-Dimethyl phenol <10 mil Dimethyl phthalate <10 mil p-Dimethylaminoazobenzene <10 mil 7,12-Dimethylbenzla]anthracene <10 mil 3,3'-Dimethylbenzidine <10 mil a,a-Dimethylphenethylamine <10 mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-64 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 11B continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3Q94 4Q94 DF Mod Unit Lab Flafl

1,3-Dinitrobenzene <10 i/g/L 2,4-Dinitrophenol <45 //g/L 2,4-Dinitrotoluene <10 //g/L 2,6-Dinitrotoluene <10 //g/L Di-n-octyl phthalate <10 //g/L 1,4-Dioxane <10 //g/L Diphenylamine <10 //g/L Disulfoton <10 //g/L Endosulfan I <0.10 //g/L Endosulfan II <0.10 //g/L Endosulfan sulfate <0.10 //g/L Endrin <50 //g/L Endrin aldehyde <0.10 //g/L Ethyl methacrylate <10 //g/L Ethyl methanesulfonate <10 //g/L Ethylbenzene < 1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Famphur <10 //g/L Fluoranthene <10 //g/L Fluorene <10 //g/L Fluoride <100 <20 1 //g/L GE 0 Gross alpha 9.0E-01 7.3E-01 pCi/L Heptachlor <0.050

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-65 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 11B continued

ANALYTICAL DATA

H ST Analvte 1Q94 2094 3Q94 4Q94 DF 1vlo d Unit Lab fj

1-Naphthylamine <10 //g/L 2-Naphthylamine <10 //g/L Nickel, total recoverable <4.0 <4.0 <4.0 1 //g/L GE 0 Nitrate-nitrite as nitrogen 300 292 244 1 ngii GE 0 o-Nitroaniline <10 //g/L m-Nitroaniline <10 //g/L p-Nitroaniline <10 //g/L Nitrobenzene <10 //g/L 2-Nitrophenol <10 //g/L 4-Nitrophenol <10 //g/L 4-Nitroquinoline-1 -oxide <10 //g/L N-Nitrosodi-n-butylamine <10 //g/L N-Nitrosodiethylamine <10 //g/L N-Nitrosodimethylamine <10 //g/L N-Nitrosodiphenylamine <10 //g/L N-Nitrosodipropylamine <10 //g/L N-Nitrosomethylethylamine <10 //g/L N-Nitrosomorpholine <10 //g/L N-Nitrosopiperidine <10 //g/L N-Nitrosopyrrolidine <10 //g/L 5-Nitro-o-toluidine <10 //g/L Nonvolatile beta 7.9E-01 pCi/L 0,0,0-Triethyl phosphorothioate <10 //g/L Octachlorodibenzo-p-dioxin <0.10 //g/L Octachlorodibenzo-p-furan <0.10 //g/L Parathion <0.050 UQlL Parathion methyl <0.050 //g/L PCB 1016 <0.50 //g/L PCB 1221 <0.50 P9/L PCB 1232 <0.50 //g/L PCB 1242 <0.50 x/g/L PCB 1248 <0.50 //g/L PCB 1254 <0.50 //g/L PCB 1260 <0.50 //g/L Pentachlorobenzene <10 //g/L 1,2,3,7,8-PCDD <0.055 //g/L Pentachlorodibenzo-p-dioxin isomers < 0.055 H9l\- 1,2,3,7,8-PCDF <0.055 OT/L Pentachloroethane <10 //g/L Pentachloronitrobenzene <10 //g/L Pentachlorophenol <10 //g/L Phenacetin <10 //g/L Phenanthrene <10 //g/L Phenol <10 //g/L p-Phenylenediamine <10 //g/L Phorate <0.10 //g/L 2-Picoline <10 //g/L Pronamid <10 //g/L Propionitrile <200 //g/L Pyrene <10 //g/L Pyridine <10 //g/L Radium, total alpha-emitting 1.8E + 00 5.0E-01 1.0E-01 4.0E-01 1 J pCi/L GP 0 Radium-226 4.5E-01 pCi/L Radium-228 1.7E + 00 pCi/L Safrole <10 //g/L Selenium, total recoverable <2.0 //g/L Silver, total recoverable <2.0 <2.0 <2.0 1 //g/L GE 0 Styrene <10 //g/L Sulfide < 1,000 //g/L Sulfotepp <10 //g/L 1,2,4,5-Tetrachlorobenzene <10 //g/L 2,3,7,8-TCDD <0.045 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-66 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 11B continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3Q94 4Q94 DF Mod Unit Lab Fl

2,3,7,8-TCDF < 0.040 //g/L Tetrachlorodibenzo-p-dioxin isomers < 0.045 //g/L Tetrachlorodibenzo-p-furan isomers < 0.040 //g/L 1,1,1,2-Tetrachloroethane <1.0 //g/L 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,3,4,6-Tetrachlorophenol <10 //g/L Thallium, total recoverable <2.0 //g/L Thionazin <10 //g/L Tin, total recoverable 3.3 //g/L Toluene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 o-Toluidine <10 //g/L Total organic carbon <1,000 <1,000 <1,000 1,120 1 J //g/L GE 0 Total organic halogens 12 <5.0 <5.0 6.1 1 J //g/L GE 0 Toxaphene <0.24 //g/L 2,4,5-TP (Silvex) <0.00044 i/g/L 1,2,4-Trichlorobenzene <10 //g/L 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Trichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2,4,5-Trichlorophenol <10 //g/L 2,4,6-Trichlorophenol <10 //g/L 2,4,5-T < 0.00044 //g/L 1,2,3-Trichloropropane <1.0 //g/L 1,3,5-Trinitrobenzene <10 //g/L Vanadium, total recoverable <8.0 //g/L Vinyl acetate <10 //g/L Xylenes <2.0 //g/L Zinc, total recoverable 5.5 //g/L

WELL AMB 11D

SRS Coord. Lat/Lonaitude Screen Zone Elevation Top of Casiin q Casino Pump Screen Zone

N103132.3 33.338588 "N 240.5-220.5 ft msl 364 ft msl 4" PVC S M E51932.6 81.730426 °W

SAMPLE DATE 02/11/94 04/22/94 08/24/94 10/28/94

FIELD DATA

Analvte 1Q94 20.94 30.94 4Q94 Unit

Water elevation 237.3 237.3 236.6 236.9 ft msl Depth to water 126.8 126.7 127.4 127.1 ft pH 5.9 6.0 6.0 6.1 pH Sp. conductance 44 62 56 62 /jS/cm Water temperature 17.0 18.9 18.1 17.3 °C

Alkalinity as CaC03 8 10 15 19 mg/L Turbidity 1 0 1 1 NTU Volume purged 13.8 5.8 10.4 6.8 well vol. Sampling code

ANALYTICAL DATA

H ST Analvte 10.94 2Q94 3Q94 4Q94 DF Mod Unit Lab R

Aluminum, total recoverable <20 <20 //g/L Barium, total recoverable 7.2 //g/L Benzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE Bromodichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE

Bromoform <1.0 <1.0 <1.0 <1.0 1 //g/L GE oo o

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-67 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 11D continued

ANALYTICAL DATA H ST Analyte 1Q94 2094 3094 4Q94 DF Mod Unit Lab ft Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Cadmium, total recoverable <2.0 //g/L Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloride 2,590 2,380 1 //g/L GE 0 Chlorobenzene 1.8 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Cobalt, total recoverable <4.0 //g/L Copper, total recoverable <4.0 //g/L Cyanide <5.0 <5.0 <5.0 1 //g/L GE 0 Dibromochloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1 -Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1 -Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 1 U9/L GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 1 ugll GE 0 cis-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Ethylbenzene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Fluoride <100 <20 1 //g/L GE 0 Gross alpha 1.5E+00 4.4E-01 pCi/L Iron, total recoverable 5.4 4.3 //g/L Lead, total recoverable <3.0 <3.0 //g/L Manganese, total recoverable <2.0 <2.0 //g/L Nickel, total recoverable <4.0 <4.0 <4.0 1 //g/L GE 0 Nitrate-nitrite as nitrogen 170 67 56 1 J //g/L GE 0 Nonvolatile beta 5.2E-01 pCi/L Radium, total alpha-emitting 8.0E-01 <-1.0E-01 2.0E-01 2.0E-01 1 Ul pCi/L GP 0 Selenium, total recoverable <2.0 //g/L Silver, total recoverable <2.0 <2.0 1 //g/L GE 0 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 1 miy- GE 0 Tetrachioroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Toluene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Total organic carbon < 1,000 <1,000 < 1,000 1,120 1 J //g/L GE 0 Total organic halogens <5.0 <5.0 <5.0 <5.0 1 //g/L GE 0 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Trichloroethylene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Zinc, total recoverable 15 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-68 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WELL AMB 12D

SRS Coord. Lat/Lonoitude Screen Zone Elevation Top of Casing Casing Pump Screen Zone

N 103602.4 33.339576 °M 239.4-219.4 ft msl 369.8 ft msl 4" PVC S M E51901.6 81.731422 °W

SAMPLE DATE 02/11/94 04/22/94 08/24/94 10/28/94

FIELD DATA

Analvte 1094 2Q94 3Q94 4Q94 Unit

Water elevation 235.7 235.2 235.4 ft msl Depth to water 134.1 134.6 134.4 ft PH 5.9 5.6 5.7 PH Sp. conductance 25 25 22 fiS/cm Water temperature 17.3 19.2 18.3 "C

Alkalinity as CaC03 5 3 2 mg/L Turbidity 2 1 2 NTU Volume purged 10.1 6.3 11.0 well vol. Sampling code

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3Q94 4Q94 DF i/lod Unit Lab B

Aluminum, total recoverable 32 24 U9/L Barium, total recoverable 4.2 C9H Benzene <1.0 <1.0 <1.0 <1.0 CdH GE 0 Bromodichloromethane <1.0 <1.0 <1.0 <1.0 C9'l GE 0 Bromoform <1.0 <1.0 <1.0 <1.0 Cdll GE 0 Bromomethane (Methyl bromide) <1.0 <1.0 <1.0 <1.0 V9IL GE 0 Cadmium, total recoverable <2.0 Cdll Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 Call GE 0 Chloride 1,460 1,250 call GE 0 Chlorobenzene <1.0 <1.0 <1.0 <1.0 CdH GE 0 Chloroethane <1.0 <1.0 <1.0 <1.0 C9H GE 0 Chloroethene (Vinyl chloride) <1.0 <1.0 <1.0 <1.0 Call GE 0 2-Chloroethyl vinyl ether <1.0 <1.0 <1.0 <1.0 can GE 0 Chloroform <1.0 <1.0 <1.0 <1.0 can GE 0 Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 <1.0 can GE 0 Cobalt, total recoverable <4.0 can Copper, total recoverable <4.0 can Cyanide <5.0 <5.0 <5.0 can GE 0 Dibromochloromethane <1.0 <1.0 <1.0 <1.0 mii GE 0 1,1 -Dichloroethane <1.0 <1.0 <1.0 <1.0 can GE 0 1,2-Dichloroethane <1.0 <1.0 <1.0 <1.0 nail GE 0 1,1 -Dichloroethylene <1.0 <1.0 <1.0 <1.0 can GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 can GE 0 Dichloromethane <1.0 <1.0 <1.0 <1.0 can GE 0 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 can GE 0 cis-1,3- Dichloropropene <1.0 <1.0 <1.0 <1.0 can GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 can GE 0 Ethylbenzene <1.0 <1.0 <1.0 <1.0 can GE 0 Fluoride <100 <20 can GE 0 Gross alpha 5.7E-01 2.8E-01 pCi/L Iron, total recoverable 23 9.0 can Lead, total recoverable <3.0 <3.0 can Manganese, total recoverable 12 11 can Nickel, total recoverable <4.0 <4.0 <4.0 1 can GE 0 Nitrate-nitrite as nitrogen 780 758 875 1 can GE 0 Nonvolatile beta 4.2E-01 pCi/L Radium, total alpha-emitting 7.0E-01 <2.0E-01 4.0E-01 6.0E-01 1 J pCi/L GP 0 Selenium, total recoverable <2.0 can Silver, total recoverable <2.0 <2.0 1 can GE 0

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-69 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 12D continued

ANALYTICAL DATA

H ST Analyte 1Q94 2094 3094 4Q94 DF Mod Unit Lab R

1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 //g/L GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 //g/L GE 0 Toluene <1.0 <1.0 <1.0 <1.0 P9/L GE 0 Total organic carbon < 1,000 <1,000 < 1,000 <1,000 //g/L GE 0 Total organic halogens <5.0 <5.0 33 <5.0 //g/L GE 0 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 cgii GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 //g/L GE 0 Trichloroethytene <1.0 <1.0 <1.0 <1.0 //g/L GE 0 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 //g/L GE 0 Zinc, total recoverable 2.1 //g/L

WELL AMB 13AR

SRS Coord. Lat/Longitude Screen Zone Elevation Top of Casino Casing Pumi Screen Zone

N 103082.0 33.337600 °N 110.9-100.9 ft msl 365.1 ft msl 4" PVC S MCBC E51396.0 81.731742 °W

SAMPLE DATE 04/26/94 08/24/94 11/01/94 02/13/94 FIELD DATA

Analvte 2Q94 3Q94 4Q94 Unit 1Q94 Water elevation 219.6 219.3 219.7 219.7 ft msl Depth to water 145.5 145.8 145.4 145.4 ft PH 10.9 11.1 10.7 10.2 PH Sp. conductance 234 274 139 190 //S/cm Water temperature 16.6 18.3 19.0 19.3 »c Alkalinity as CaC03 63 2 41 100 mg/L Turbidity 2 3 21 7 NTU Volume purged 0.8 0.8 0.7 0.9 well vol Sampling code X X X X

ANALYTICAL DATA

H ST Analvte 1Q94 2Q94 3Q94 4Q94 DF Mod Unit Lab Flag

Acenaphthene <10 //g/L Acenaphthylene <10 //g/L Acetone <100 //g/L Acetonitrile (Methyl cyanide) <5.0 //g/L Acetophenone <10 //g/L 2-Acetylaminofluorene <10 //g/L Acrolein <20 //g/L Acrylonitrile <20 //g/L Aldrin < 0.050 //g/L Allyl chloride <50 //g/L Aluminum, total recoverable 34 128 //g/L 4-Aminobiphenyl <10 //g/L Aniline <10 //g/L Anthracene <10 //g/L Antimony, total recoverable <2.0 //g/L Aramite <10 //g/L Arsenic, total recoverable <2.0 //g/L Barium, total recoverable 42 //g/L Benzene <1.0 <1.0 <1.0 <1.0 //g/L GE alpha-Benzene hexachloride < 0.050 //g/L beta-Benzene hexachloride < 0.050 //g/L delta-Benzene hexachloride < 0.050 //g/L Benzolalanthracene <10 //g/L BenzoM>]fluoranthene <10 //g/L Benzol/rlfluoranthene <10 //g/L

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-70 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 13AR continued

ANALYTICAL DATA

H ST Analvte 1094 2Q94 3Q94 4Q94 DF Mod Unit Lab F[

Benzo[o,/i,/lperylene <10 P9'l Benzolajpyrene <10 mil Benzyl alcohol <10 mil Beryllium, total recoverable <3.0 mil Bis(2-chloroethoxy) methane <10 mil Bis(2-chloroethyl) ether <10 mil Bis(2-chloroisopropyl) ether <5.0 mil Bis(2-ethylhexyl) phthalate <10 mil Bromodichloromethane < 1.0 <1.0 <1.0 <1.0 mil GE 0 Bromoform < 1.0 <1.0 <1.0 <1.0 mil GE 0 Bromomethane (Methyl bromide) < 1.0 <1.0 <1.0 <1.0 mil GE 0 4-Bromophenyl phenyl ether <10 mil Butyibenzyl phthalate <10 mil 2-sec-Butyl-4,6-dinitrophenol <10 mil Cadmium, total recoverable <2.0 <2.0 mil Carbon disulfide <10 mil Carbon tetrachloride < 1.0 <1.0 <1.0 <1.0 1 mil GE 0 Chlordane <0.50 mil Chloride 2,910 2,300 1 mil GE 0 4-Chloroaniline <10 mil Chlorobenzene < 1.0 <1.0 <1.0 <1.0 1 mil GE 0 Chlorobenzilate <10 mil 4-Chloro-m-cresol <10 mil Chloroethane < 1.0 <1.0 <1.0 1 mil GE 0 Chloroethene (Vinyl chloride) < 1.0 <1.0 <1.0 1 mil GE 0 2-Chloroethyl vinyl ether < 1.0 <1.0 1 mil GE 0 Chloroform < 1.0 <1.0 <1.0 1 mil GE 0 A Chloromethane (Methyl chloride) <1.0 <1.0 <1.0 'o'o'o'o'o 1 m/i GE 0 2-Chloronaphthalene <10 mil 2-Chlorophenol <10 mil 4-Chlorophenyl phenyl ether <10 mii Chloroprene <200 rn'i Chromium, total recoverable <4.0 mil Chrysene <10 mil Cobalt, total recoverable <4.0 mil Copper, total recoverable <4.0 mil o-Cresol (2-Methylphenol) <10 mil m,p-Cresol <10 mil Cyanide <5.0 <5.0 <5.0 mil GE 0 p,p'-DDD <0.10 mil p,p'-DDE <0.10 mil p,p'-DDT <0.10 mil Diallate <10 mil Dibenzla,/»anthracene <10 mil Dibenzofuran <10 mil Dibromochloromethane < 1.0 <1.0 <1.0 <1.0 mil GE 0 1,2-Dibromo-3-chloropropane <5.0 mil 1,2-Oibromoethane <20 mil Dibromomethane <1.0 mil Di-n-butyl phthalate <10 mil 1,2-Dichlorobenzene <10 pan 1,3-Dichlorobenzene <10 pan 1,4-Dichlorobenzene <10 mil 3,3'-Dichlorobenzidine <10 pan trans-1,4-Dichloro-2-butene <30 mil Dichlorodifluoromethane <1.0 pan 1,1-Dichloroethane <1.0 <1.0 <1.0 <1.0 pan GE 0 1,2-Dichloroethane < 1.0 <1.0 <1.0 <1.0 pan GE 0 1,1-Dichloroethylene <1.0 <1.0 <1.0 <1.0 pan GE 0 trans-1,2-Dichloroethylene <1.0 <1.0 <1.0 <1.0 pan GE 0 Dichloromethane < 1.0 <1.0 <1.0 <1.0 mil GE 0 2,4-Dichlorophenol <10 mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-71 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

WellAMB13AR continued

ANALYTICAU DATA

H ST Analyte 1Q94 2Q94 3094 4Q94 DF Mod Unit Lab Flag. 2,6-Dichloropheno! <10 //g/u 2,4-Dichlorophenoxyacetic acid <0.0015 //g/u 1,2-Dichloropropane <1.0 <1.0 <1.0 <1.0 1 //g/u GE 0 cis-1,3-0ichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/u GE 0 trans-1,3-Dichloropropene <1.0 <1.0 <1.0 <1.0 1 //g/u GE 0 Dieldrin < 0.025 //g/u Diethyl phthalate <10 //g/u Dimethoate <10 //g/u 2,4-Dimethyl phenol <10 //g/L Dimethyl phthalate <10 //g/u p-Dimethylaminoazobenzene <10 //g/u 7,12-Dimethylbenz|alanthracene <10 //g/u 3,3'-Dimethylbenzidine <10 //g/u a,a-Dimethylphenethy!amine <10 //g/u 1,3-Dinitrobenzene <10 //g/u 2,4-Dinitrophenol <45 //g/u 2,4-Dinitrotoluene <10 //g/u 2,6-Dinitrotoluene <10 //g/u Di-n-octyl phthalate <10 //g/u 1,4-Dioxane <10 //g/L Diphenylamine <10 //g/L Disulfoton <10 mil Endosulfan I <0.10 mil Endosulfan II <0.10 mil Endosulfan sulfate <0.10 mil Endrin <50 mil Endrin aldehyde <0.10 mil Ethyl methacrylate <10 mn Ethyl methanesulfonate <10 mil Ethylbenzene <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Famphur <10 mil Fluoranthene <10 mil Fluorene <10 mn Fluoride <100 <20 1 mil GE 0 Gross alpha <4.8E-01 1.6E + 00 pCi/L Heptachlor < 0.050 //g/L Heptachlor epoxide < 0.050 mil 1,2,3,4,6,7,8-HPCDD < 0.065 mil Heptachlorodibenzo-p-dioxin isomers < 0.065 mil 1,2,3,4,6,7,8-HPCDF < 0.045 mil Heptachlorodibenzo-p-furan isomers < 0.045 mn Hexachlorobenzene <10 mn Hexachlorobutadiene <10 mn Hexachlorocyclopentadiene <10 mil 1,2,3,4,7,8-HXCDD <0.045 mil Hexachlorodibenzo-p-dioxin isomers <0.045 mil 1,2,3,4,7,8-HXCDF < 0.040 mn Hexachlorodibenzo-p-furan isomers < 0.040 mn Hexachloroethane <10 mil Hexachlorophene <10 mil Hexachloropropene <10 mil 2-Hexanone <10 mil Indenol 7,2,3-ccflpyrene <10 mil lodomethane (Methyl iodide) <15 mil Iron, total recoverable 24 mil

Isobutyl alcohol o mil Isodrin mil Isophorone mil Isosafrole mil A Kepone O o mil Lead, total recoverable <3.0 <3.0 mil Lindane < 1,250 mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-72 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 13AR continued

ANALYTICAL DATA

H ST Analyte 1094 2Q94 3Q94 4Q94 DF flod Unit Lab R Manganese, total recoverable <2.0 4.4 //g/L Mercury, total recoverable <0.20 //g/L Methacrylonitrile <50 //g/L Methapyrilene <10 //g/L Methoxychlor <0.50 //g/L 2-Methyl-4,6-dinitrophenol <10 //g/L Methyl ethyl ketone <1.0 //g/L Methyl isobutyl ketone <10 //g/L Methyl methacrylate <5.0 //g/L Methyl methanesulfonate <10 P9/L 3-Methylcholanthrene <10 //g/L 2-Methylnaphthalene <10 //g/L Naphthalene <10 //g/L 1,4-Naphthoquinone <10 //g/L 1 -Naphthylamine <10 //g/L 2-Naphthylamine <10 //g/L Nickel, total recoverable <4.0 <4.0 <4.0 1 //g/L GE 0 Nitrate-nitrite as nitrogen 1,050 1,160 886 1 //g/L GE 0 o-Nitroaniltns <10 //g/L m-Nitroaniline <10 //g/L p-Nitroaniline <10 //g/L Nitrobenzene <10 «/gA 2-Nitrophenol <10 //g/L 4-Nitrophenol <10 //g/L 4-Nitroquinoline-1 -oxide <10 //g/L N-Nitrosodi-n-butylamine <10 //g/L N-Nitrosodiethylamine <10 //g/L N-Nitrosodimethylamine <10 //g/L N-Nitrosodiphenylamine <10 //g/L N-Nitrosodipropylamine <10 //g/L N-Nitrosomethylethylamine <10 //g/L <10 N-Nitrosomorpnoline //g/L <10 N-Nitrosopiperidine //g/L <10 //g/L N-Nitrosopyrrolidine <10 5-Nitro-o-toluidine //g/L Nonvolatile beta 3.2E+O0 pCi/L 0,0,0-Triethyl phosphorothioate <10 //g/L Octachlorodibenzo-p-dioxin <0.10 //g/L Octachlorodibenzo-p-furan <0.10 //g/L Parathion < 0.050 //g/L Parathion methyl < 0.050 //g/L PCB 1016 <0.50 //g/L PCB 1221 <0.50 //g/L PCB 1232 <0.50 //g/L PCB 1242 <0.50 //g/L PCB 1248 <0.50 //g/L PCB 1254 <0.50 //g/L PCB 1260 <0.50 //g/L Pentachlorobenzene <10 //g/L 1,2,3,7,8-PCDD < 0.055 //g/L Pentachlorodibenzo-p-dioxin isomers < 0.055 //g/L 1,2,3,7,8-PCDF <0.055 //g/L //g/L Pentachloroethane <10 //g/L Pentachloronitrobenzene <10 <10 //g/L Pentachlorophenol

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-73 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Well AMB 13AR continued

ANALYTICAL DATA

H ST Analyte 1Q94 2Q94 3Q94 4Q94 DF Mod Unit Lab Flag

Propionitrile <200 //g/L Pyrene <10 //g/L Pyridine <10 //g/L Radium, total alpha-emitting 2.0E + 00 7.0E-01 6.0E-01 7.0E-01 1 J pCi/L GP 0 Safrole <10 //g/L Selenium, total recoverable <2.0 //g/L Silver, total recoverable <2.0 <2.0 <2.0 1 //g/L GE 0 Styrene <10 //g/L Sulfide <1,000 //g/L Sulfotepp <10 //g/L 1,2,4,5-Tetrachlorobenzene <10 //g/L 2,3,7,8-TCDD < 0.045 //g/L 2,3,7,8-TCDF < 0.040 //g/L Tetrachlorodibenzo-p-dioxin isomers <0.045 //g/L Tetrachlorodibenzo-p-furan isomers < 0.040 //g/L 1,1,1,2-Tetrachloroethane <1.0 //g/L 1,1,2,2-Tetrachloroethane <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 Tetrachloroethylene <1.0 <1.0 <1.0 <1.0 1 */g/L GE 0 2,3,4,6-Tetrachlorophenol <10 //g/L Thallium, total recoverable <2.0 //g/L Thionazin <10 mil Tin, total recoverable 6.6 //g/L Toluene <1.0 <1.0 <1.0 <1.0 1 //g/L GE 0 o-Toluidine <10 //g/L Total organic carbon 1,180 1,160 1,260 1,950 1 //g/L GE 0 Total organic halogens 7.1 <5.0 <5.0 <5.0 1 //g/L GE 0 Toxaphene <0.24 //g/L 2,4,5-TP (Silvex) <0.00045 mil 1,2,4-Trichlorobenzene <10 mil 1,1,1 -Trichloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 1,1,2-Trichloroethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 Trichloroethylene <1.0 1.3 1.2 1.0 1 J //g/L GE 0 Trichlorofluoromethane <1.0 <1.0 <1.0 <1.0 1 mil GE 0 2,4,5-Trichlorophenol <10 mil 2,4,6-Trichlorophenol <10 mil 2,4,5-T < 0.00045 mil 1,2,3-Trichloropropane <1.0 mil 1,3.5-Trinitrobenzene <10 mil Vanadium, total recoverable <8.0 mil Vinyl acetate <10 mil Xylenes <2.0 mil Zinc, total recoverable <2.0 mil

Note: Flagging, dilution factors, modifiers, and laboratories are for fourth quarter 1994 data only. See Appendix B for flagging criteria. • = exceeded holding time for fourth quarter 1994. • = exceeded screening level or final PDWS for fourth quarter 1994.

Metallurgical Laboratory HWMF D-74 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Appendix E

Data Quality/Usability Assessment

Metallurgical Laboratory HWMF E-1 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF E-2 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Data Quality/Usability Assessment

Quality assurance/quality control (QA/QC) procedures relating to accuracy and precision of anal• yses performed on groundwater samples are followed in the field and laboratory and are review• ed prior to publication of results. The review by the Environmental Protection Department/Envi• ronmental Monitoring Section (EPD/EMS) of the volume of analytical data acquired each quarter and presented in various reports is an ongoing process; its review of the QA/QC data cannot be completed in time to meet the deadlines for the reports required by the Resource Conservation and Recovery Act and associated regulations. Other site and regulatory personnel can obtain further information on the data quality and usability in a variety of ways, including those de• scribed below.

Data Qualification

The contract laboratories continually assess their own accuracy and precision according to U.S. Environmental Protection Agency (EPA) guidelines. They submit sample- or batch-specific QA/ QC information either at the same time as analytical results or in quarterly summaries. Properly defined and used result modifiers (also referred to as qualifiers) can be a key component in as• sessing data usability. Result modifiers designed by EPD/EMS and used by the primary labora• tories are presented in Appendix D.

Assessment of Accuracy of the Data

Accuracy, or the nearness of the reported result to the true concentration of a constituent in a sample, can be assessed in several ways.

A laboratory's general accuracy can be judged by analysis of results obtained from known sam• ples. The non-radionuclide contract laboratories analyze commercial reference samples every quarter at EPD/EMS' request. The results of these analyses are presented in the EPD/EMS groundwater monitoring quarterly reports. The primary laboratories also seek or maintain state certification by participating periodically in performance studies; reference samples and analysis of results are provided by EPA. Results of these studies also are published in the EPD/EMS quarterly reports.

Analysis of blanks provides a tool for assessing the accuracy of both sampling and laboratory analysis. Results for all field blanks for the quarter can be found in the EPD/EMS quarterly reports. Any field or laboratory blanks that exceed established minimums are identified in the same reports, in tables associating them with groundwater samples analyzed in the same batches.

Surrogates, organic compounds similar in chemical behavior to the compounds of interest but not normally found in environmental samples, are used to monitor the effect of the matrix on the accuracy of analyses for organic parameters. For example, for analyses of volatile organics by EPA Method 8240, three surrogate compounds are added to all samples and blanks in each analytical batch. In analyses of semivolatile organics, three acid compounds and three base/ neutral compounds are used. Two surrogates are used in organochlorine pesticides analyses. Percent recoveries for surrogate analyses are calculated by laboratory personnel, reported to EPD/EMS, reviewed, and entered into the database, but they are not published. If recoveries are not within specified limits, the laboratory is expected to reanalyze the samples or attach qual• ifiers to the data identifying the anomalous results.

Metallurgical Laboratory HWMF E-3 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Sample-specific accuracy for both organic and inorganic parameters can be assessed by exami• nation of matrix spike/matrix spike duplicate results. A sample is analyzed unspiked to determine a baseline set of values. A second portion of the sample is spiked with known concentrations of compounds appropriate to the analyses being performed, typically five volatile organic com• pounds for volatile organics analyses, eleven semivolatile compounds for semivolatiles, six pesti• cide compounds for pesticides, all metals for metals analyses by SW-846 methods (EPA, 1986), and a known quantity of cyanide for cyanide analysis. The percentage of the spike compound that is recovered (i.e., measured in excess of the value obtained for the unspiked sample) is a direct measure of analytical accuracy. EPA requires matrix spike/matrix spike duplicates to be run at least once per 20 samples of similar matrix.

Matrix spike/matrix spike duplicate results are reported to EPD/EMS but are not published. For organic compounds, according to EPA guidelines, no action is taken on the basis of matrix spike/ matrix spike duplicate data alone (i.e., no result modifiers are assigned solely on the basis of matrix spike results); however, the results can indicate if a laboratory is having a systematic prob• lem in the analysis of one or more analytes.

In the case of inorganic compounds, such as metals, the matrix spike sample analysis pro• vides information about the effect of each sample matrix on the digestion and measurement methodology. Data qualifiers assigned by the laboratories on the basis of the percentage of spike recovery are reported in the published results tables.

Assessment of Precision

Precision of the analyses, or agreement of a set of replicate results among themselves, is as• sessed through the use of duplicates initiated by the laboratory and blind replicates provided by EPD/EMS. The results of duplicate and replicate analyses are presented in those results tables of the quarterly reports which report only one quarter of data, usually during first, second, and third quarters. Duplicate and replicate results are not presented in results tables that report more than one quarter of data, generally provided in fourth quarter reports. In this case, the results tables instead present only the highest result for each analyte for each quarter of the year.

The laboratories assess precision by calculating the relative percent difference (RPD) for each pair of laboratory-initiated duplicate results. One of the contract laboratories uses a data quali• fier (J3) to modify metals analyses when the RPD for laboratory duplicates is greater than 20 percent.

Additional statistical comparisons of laboratory duplicate and blind replicate results, both intra- and interlaboratory, are presented in the EPD/EMS quarterly reports. The calculation used for these reports is the mean relative difference (MRD) which is similar to EPA's RPD except that the MRD is the average of all the RPD values from one laboratory for each compound (intralab- oratory MRD) or all the RPD values from all laboratories for each compound (interlaboratory MRD), during one quarter. Because detection limits may vary among samples, the MRD requires calculation of a reference detection limit, which is the detection limit at the 90th percentile of the array of limits in the population of all duplicate and replicate analyses for a given analyte during a particular quarter. The MRD is not method-specific.

Method-Specific Accuracy and Precision

The contract laboratories' EPA-approved laboratory procedures include QA/QC requirements as an integral part of the methods. Thus, knowledge of the method used in obtaining data is an im• portant component of determining data usability. EPA has conducted extensive research and

Metallurgical Laboratory HWMF E-4 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

development on the methods approved for the analysis of water and waste water; information on the accuracy and precision of a method is available from EPA publications, as is full information on required QA/QC procedures. A listing of the methods used by the primary laboratories during fourth quarter 1993 is given below along with the source for the method description. Many, if not all, of these sources include presentations of representative accuracy and precision results.

METHODS USED BY THE CONTRACT LABORATORIES

Method Used to Analyze Source

EPA120.1 Specific conductance EPA EMSL, 1983 EPA150.1 PH EPA EMSL, 1983 EPA160.1 Total dissolved solids EPA EMSL, 1983 EPA160.2 Total dissolved solids, total suspended solids EPA EMSL, 1983 EPA180.1 Turbidity EPA EMSL, 1983 EPA200.7 Metals EPA EMSL, 1983 EPA204.2 Antimony EPA EMSL, 1983 EPA206.2 Arsenic EPA EMSL, 1983 EPA239.2 Lead EPA EMSL, 1983 EPA245.1 Mercury EPA EMSL, 1983 EPA270.2 Selenium EPA EMSL, 1983 EPA279.2 Thallium EPA EMSL, 1983 EPA300.0 Chloride, nitrite, sulfate EPA EMSL, 1991 EPA310.1 Alkalinity EPA EMSL, 1983 EPA325.2 Chloride EPA EMSL, 1983 EPA335.3 Cyanide EPA EMSL, 1983 EPA340.2 Fluoride EPA EMSL, 1983 EPA353.1 Nitrogen, nitrate-nitrite EPA EMSL, 1983 EPA353.2 Nitrogen, nitrate, nitrite, or combined EPA EMSL, 1983 EPA365.1 Phosphorus, all forms (reported as total phosphates) EPA EMSL, 1983 EPA365.2 Phosphorus, all forms (reported as total phosphates) EPA EMSL, 1983 EPA376.2 Sulfide EPA EMSL, 1983 EPA413.1 Oil & grease EPA EMSL, 1983 EPA415.1 Dissolved organic carbon, total inorganic carbon, total organic EPA EMSL, 1983 carbon EPA418.1 Total petroleum hydrocarbons EPA EMSL, 1983 EPA420.2 Phenols EPA EMSL, 1983 EPA900.0 Gross alpha, nonvolatile beta EPA EMSL, 1980 EPA900.1 Total alpha-emitting radium EPA EMSL, 1980 EPA906.0 Tritium EPA EMSL, 1980 EPA6010 Metals EPA, 1986 EPA7041 Antimony EPA, 1986 EPA7060 Arsenic EPA,1986 EPA7421 Lead EPA, 1986 EPA7470 Mercury EPA, 1986 EPA7740 Selenium EPA, 1986 EPA7841 Thallium EPA, 1986 EPA8010 Chlorinated volatile organics EPA, 1986 EPA8080 Organochlorine pesticides and PCBs EPA,1986 EPA8150 Chlorinated herbicides EPA,1986 EPA8240 GCMS volatiles EPA, 1986 EPA8270 GCMS semivolatiles EPA, 1986 EPA8280 Dioxins and furans EPA, 1986 EPA9012 Cyanide EPA, 1986 EPA9020 Total organic halogens EPA, 1986

Metallurgical Laboratory HWMF E-5 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Method Used to Analyze Source

EPA9020A Total organic halogens EPA, 1986 EPA9030 Sulfide EPA, 1986 EPA9060 Dissolved organic carbon, total inorganic carbon, total organic EPA,1986 carbon

An example of available method-specific QA/QC information is that for the analysis of metals by EPA Method 6010/200.7 (EPA, 1986/EPA EMSL, 1983). The primary laboratories, General Engineering Laboratories (GE) and Roy F. Weston, Inc. (Weston), use this inductively coupled plasma (ICP) atomic emission spectrometric method.

The following precision and accuracy data are based on the experience of seven laboratories that applied the ICP technique to acid-distilled water matrices that had been spiked with various metal concentrates. (Note: Not all seven laboratories analyzed all 14 elements.) The references give results for samples having three concentration ranges; the results here are for samples hav• ing the lowest values, similar to actual groundwater results for SRS.

ICP PRECISION AND ACCURACY DATA

Mean reported Mean percent Element True value (UQIL) value IUQ/L) RSDa

Aluminum 60 62 33 Arsenic 22 19 23 Beryllium 20 20 9.8 Cadmium 2.5 2.9 16 Chromium 10 10 18 Cobalt 20 20 4.1 Copper 11 11 40 Iron 20 19 15 Lead 24 30 32 Manganese 15 15 6.7 Nickel 30 28 11 Selenium 6 8.5 42 Vanadium 70 69 2.9 Zinc 16 19 45

a Relative standard deviation. In EPA (1986), the column heading is Mean Standard Deviation (%).

As another example, EPA Method 601/8010 (EPA, 1991/EPA, 1986) is used by both GE and Weston for analyses of halogenated volatile organics. In the presentation of the method in both references, the following table gives method-specific accuracy and precision as functions of con• centration. Contract laboratories are expected to achieve or at least approach these limits.

ACCURACY AND PRECISION AS FUNCTIONS OF CONCENTRATION FOR EPA METHOD 601/8010

Accuracy as Single analyst Overall b Parameter recovery, X'a (i/g/L) precision (z/g/L) precision (UQIL)0

Bromodichloromethane 1.12C-1.02d 0.1l7+0.04e 0.207+1.00 Bromoform 0.96C-2.05 0.12X+0.58 0.217+2.41 Bromomethane 0.76C-1.27 0.287+0.27 0.36X+0.94

Metallurgical Laboratory HWMF E-6 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Accuracy as Single analyst Overall Parameter recovery. X' (iiq/U precision (x/q/U precision taj/U

Carbon tetrachloride 0.98C-1.04 0.157+0.38 0.207+0.39 Chlorobenzene 1.00C-1.23 0.157-0.02 0.187+1.21 Chloroethane 0.99C-1.53 0.147-0.13 0.177+0.63 2-Chloroethyl vinyl etherf 1.00C 0.207 0.357 Chloroform 0.93C-0.39 0.137+0.15 0.197-0.02 Chloromethane 0.77C+0.18 0.287-0.31 0.527+1.31 Dibromochloromethane 0.94C+2.72 0.117+1.10 0.247+1.68 1,2-Dichlorobenzene 0.93C+1.70 0.207+0.97 0.137+6.13 1,3-Dichlorobenzene 0.95C+0.43 0.147+2.33 0.267+2.34 1,4-Dichlorobenzene 0.93C-0.09 0.157+0.29 0.207+0.41 1,1-Dichloroethane 0.95C-1.08 0.097+0.17 0.147+0.94 1,2-Dichloroethane 1.04C-1.06 0.117+0.70 0.157+0.94 1,1-Dichloroethene 0.98C-0.87 0.217-0.23 0.297-0.40 trans-1,2-Dichloroethene 0.97C-0.16 0.117+1.46 0.177+1.46 Dichloromethane 0.91C-0.93 0.117+0.33 0.217+1.43 (Methylene chloride) 1,2-Dichloropropanef 1.00C 0.137 0.237 cis-1,3-Dichloropropenef 1.00C 0.187 0.327 trans-1,3-Dichloropropene 1.00C 0.187 0.327 1,1,2,2-Tetrachloroethane 0.95C+0.19 0.147+2.41 0.237+2.79 Tetrachloroethylene 0.94C+0.06 0.147+0.38 0.187+2.21 1,1,1 -Trichloroethane 0.90C-0.16 0.157+0.04 0.207+0.37 1,1,2-Trichloroethane 0.86C+0.30 0.137-0.14 0.197+0.67 Trichloroethylene 0.87C+0.48 0.137-0.03 0.237+0.30 Trichlorofluoromethane 0.89C-0.07 0.157+0.67 0.267+0.91 Vinyl chloride 0.97C-0.36 0.137+0.65 0.277+0.40

a X' = expected recovery for one or more measurements of a sample containing a concentration of C, in/ig/L. b Expected single analyst standard deviation of measurements. Expected interlaboratory standard deviation of measurements. C = true value for the concentration, in //g/L. e 7v == average recovery found for measurements of samples containing a concentration of C, in //g/L 1 Estimates based on performance of a single laboratory. References Cited

EPA (U.S. Environmental Protection Agency), 1986. Test Methods for Evaluating Solid Waste (SW-846), Volumes IA-IC. Washington, DC.

EPA (U.S. Environmental Protection Agency), 1991. Guidelines Establishing Test Procedures for the Analysis of Pollutants, Code of Federal Regulations, Title 40, Part 136, Appendix A. Washington, DC.

EPA EMSL (U.S. Environmental Protection Agency, Environmental Monitoring and Systems Lab• oratory), 1980. Prescribed Procedures for Measurement of Radioactivity in Drinking Water, EPA-600/4-80-032. Cincinnati, OH.

EPA EMSL (U.S. Environmental Protection Agency, Environmental Monitoring and Systems Lab• oratory), 1983. Methods for Chemical Analysis of Water and Wastes. Cincinnati, OH.

Metallurgical Laboratory HWMF E-7 Fourth Quarter1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

EPA EMSL (U.S. Environmental Protection Agency, Environmental Monitoring and Systems Lab• oratory), 1991. Test Method, The Determination of Inorganic Anions in Water by Ion Chromatography—Method 300.0. Cincinnati, OH.

Metallurgical Laboratory HWUF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Appendix F

Time Series Plots

Metallurgical Laboratory HWMF F-1 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF F-2 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Field pH Wells AMB 1A Through AMB 4

6.5 o

= 5.5 X Q.

4.5

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

AMB 1A AMB 2 AMB3A AMB 4

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Field pH Wells AMB 4A Through AMB 7B

10 T

9 : *^

8

7 A As g A 6 0 • • ' " ? - S A A A 5 S% 5 a „ I 6 O O >* : # 8 O o • a D •

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• AMB 4A AMB4B AMB4D AMB 5 AMB 6

-a AMB 7 AMB7A AMB7B

I Laboratory HWMF Fourth Quarter 1994 and 1994 S,Ijgfei/ y WSRC-TR-94-0615 Unclassified

Field pH Wells AMB 8D Through AMB 13AR

13 T 12 • x 1 11 •'-. X • x x X 10 • X • 9 •; uni t X 8 Q. 7 8 £ 0 6 MM 8 fl s 5 0 * 6 t 4 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

AMB8D AMB9D AMB 10A AMB 10B AMB10D

-A- AMB 10DD AMB 11B AMB11D -x AMB 12D -X AMB 13AR

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Field Specific Conductance Wells AMB 1A Through AMB 4

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

AMB 1A AMB 2 AMB 3A AMB 4

NletaHuo^aalUJ^ttl Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry WSRC-TR-94-0615 Unclassified

Field Specific Conductance Wells AMB 4A Through AMB 7B

10

9 - S

8 - E : A A / u 7 A • • • A A A • • • • A A 4 g " A 6 V O • 8 A * : ° t A 4 A A 4 A * - 5 O ? O O a 8 o ™ o • • • . . _• 1 , 1- -1 1 1 -J 1 1 ,— H , -• ' 1 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

AMB4A AMB4B AMB4D AMB 5 AMB 6

-* AMB 7 AMB7A AMB7B

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0B15 Unclassified

Field Specific Conductance Wells AMB 8D Through AMB 13AR

12 T 11 10 9 E 8 a. 7 { t 8 9 6 8 a O A 8 ^ $ | $ § 5 I 4 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• AMB 8D AMB9D AMB 10B AMB 10D AMB10DD

-* AMB 11B AMB 11D AMB 12D AMB 13AR

AMB 1 OA is plotted separately because its value distorts the scale of this chart.

Metallurgicalw Laboratory HWMF Fourth Quarter 1994 and 1994 Sia try WSRC-TR-94-0615 Unclassified

Field Specific Conductance Well AMB 10A

13 T 12.5 12 11.5 11 E o 10.5 i 10 | 9.5 9 | 8.5 I 8 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

AMB10A

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations Well AMB 1A

2 1.8 1.6 3 1.4 1.2 i 5 1 A Z 0.8 LU 0.6 u 2 0.4 O o 0.2 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

Metallurgicalurgtol Laboratory HWMF Fourth Quarter 1994 and 1994 uA/Si y WSRC-TR-S4-061SRW()6 Unclassified

Tetrachloroethylene Concentrations WellAMB 2

2 1.8 1.6 1.4 2 O 1.2 1 *A z 0.8 Ui O 0.6 2 O 0.4 U 0.2 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations WellAMB 3A

2 T 1.8 1.6 i I 1.4 Z O 1.2

1 A A 0.8 "J O 0.6 -f O O 0.4 i 0.2 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result A Detection Limit Mean

MetalluMftfl(TJ^tt Laboratory HWMF Fourth Quarter 1994 and 1994t^ery Si WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations Well AMB 4

10 9 8 I 7 z o 6 < 5 cc H 4 • a 2 D UJ 3 O • z A A o 2 -t o 1 A AD 0 1 , , 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

Metaf/urgicaf Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachioroethylene Concentrations WellAMB 4A

100 T 90 • ^^ _J 80 v O) • 3 70 -: Z : D o 60 ; n H : < 50 D CC - • Q 1- 40 v zUl • D • • O 30 oz o 20 -: 10 -: 0 ; 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 SUM try

• WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations WellAMB 4B

1.2 D 1.15 f "3 5> 1.1

| 1.05

§ 1 A A A A A A A A AAA A A g 0.95 O | 09 O 0.85

0.8 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations WellAMB 4D

18 n 16

14 n I 12

10 < cc 8 -t H Z 6 ui D zO • - o 4 n g o 2

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

MetallurgicalV Laboratory HWMF Fourth Quarter 1994 and 1994 Suj^ery WSRC-TR-94-0615 Unclassified

Tetrachioroethylene Concentrations WellAMB 5

200 T A 180 5 160 -t 3. 140

O 120 f I- < 100 cc H Z 80 Ul O 60 z o o 40 20 a .• D p i D D D • 0 a • • n n A ,n ^_—i o_ 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations WellAMB 6

10 9 8 i 7 6 5 4 3 2

1 A AAA A A A A A A • AAAAA A A A A A A A A A 0 1 • -• • 1 . . 1 1 , , , 1 , , , 1 , , -+- 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

I Laboratory HWMF Fourth Quarter 1994 and 1994 Sii^Bry WSRC-TR-9T-0615 Unclassified

Tetrachloroethylene Concentrations Well AMB 7

2.5 T A AA AAAAA

^ 2 o>

O 1.5

£ 1 AAA A AAA AAA AAAAA A AAA AAA AA ui O | 0.5

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result A Detection Limit •-— Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations WellAMB 7A

25

-J 20 ^> D & D B z n D o 15 • a p < n a m hoc- Z 10 B UJ O z K • D o «J o

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result Detection Limit Mean

Uetallu^gl Laboratory HWMF Fourth Quarter 1994 and 1994 Si #'v WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations WellAMB 7B

5 A 4.5 4 O) 3. 3.5 Z 3 o 2.5 < z\- 2 X Ul o 1.5 z o 1 AAA AA AAAA AAA AA o 0.5 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachloroethyiene Concentrations WellAMB 8D

1 AAA A A A A A A A A A A A A A A A 0.9 0.8 I 0.7 0.6 < 0.5 oc 0.4 z ui 0.3 i O z 0.2 o o 0.1 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

Meta/ZurflfcaurctfgaJ/ Laboratory HWMF Fourth Quarter 1994 and 1994L^ery Si WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations WellAMB 9D

1 DAAAAA AAAAA AAAA A AA A A 0.9 ^^ -J 0.8 2> 3 0.7 ?• O 0.6 H < O.b DC Z 0.4 Ul 0.3 0.2 CON C 0.1 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result & Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations Well AMB 10A

1 A A A A A A A A A A A A A A 0.9 ^^ -J 0.8 0) 0.7 az o 0.6 t- < O.b tc 0.4 £Hi o 0.3 oz o 0.2 0.1 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result A Detection Limit Mean

Metalli'UMt e I Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry WSRC-TR-m-0615nWot Unclassified

Tetrachloroethylene Concentrations Well AMB 10B

5 4.5 -t 4 I 3.5 2 O 3 5 2.5 2 1 1.5 Ul O 2 1 AAAAA AAAA AAA AA O 0.5 o 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations Well AMB 10D

2 • 1.8 1.6 I 1.4 Z 1.2 o p 1 AAAAA AAAAA AAAA AAA AA

Z 0.8 UJ O 0.6 8 °-4 + 0.2 i 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit • Mean

Metallurgicalurmcai Laboratory HWMF Fourth Quarter 1994 and 1994 Su^ery WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations Well AMB 10DD

5 4.5 4 D I 3.5 3 5 2.5 cc y- 2 2 i III 1.5 U z AAAAA AAAAA AAAA AAA AA o 1 o 0.5 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations Well AMB 11B

5 4.5 4 en 3.5 2 O 3 2.5 DC H 2 2 ui O 1.5 2 O O 1 AAA AA A AAA AAA AA 0.5 { 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

Metallurgicalurcfcal Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry WSRC-TR^f-0615RWOI Unclassified

Tetrachioroethylene Concentrations Well AMB 11D

1 AAA A A AAA A A A AAA A A A A 0.9 0.8 I 0.7 Z O 0.6 H < 0.5 OC z 0.4 Ui o 0.3 -t Z o o 0.2 0.1 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations Well AMB 12D

1 AAA A A AAA A A A A A A A A A A 0.9 0.8 O) 3 0.7 z o 0.6 0.5 I- 0.4 2 UJ 0.3 U z 0.2 o o 0.1 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• Result A Detection Limit Mean

Metetfuaucauoua / Laboratory HWMF Fourth Quarter 1994 and 1994 St ry WSRC-TR-94-0615 Unclassified

Tetrachloroethylene Concentrations Well AMB 13AR

1 AAAAA AAAA A AA AA 0.9 0.8 I 0.7 2 O 0.6 0.5 Z 0.4 ui O 0.3 O O 0.2 f 0.1 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 1A

1100 1080 5 1060 3- 1040 O 1020 < cc 1000 A z 980 ui O 960 2 O 940 -t O 920 900 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result Detection Limit Mean

Metallurj^l Laboratory HWMF Fourth Quarter 1994 and 1994t^fer Si y WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 2

1100 1080 5 1060 3 1040

Z O 1020 1000 A K- Z 980 1U O 960 | z o 940 o 920 900 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 3A

1100 1080 5 1060 : 3 1040 ZO 1020 H 1000 iA

2 980 ui O z 960 o o 940 920 900 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result A Detection Limit Mean

Metalluudeali/nuai Laboratory HWMF Fourth Quarter 1994 and 1994i^sry Si WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations Well AMB 4

7000

_ 6000 • I 5000 z u 4000 • 3000

D

MCENTR / 2000 O U 1000 • A A

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit -—• Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 4A

1100 1080 5 1060 3 1040 2 1020 O 1000 A A A A A AAA AAAAA 1 980 i 111 O 960 2 O 940 O 920 900 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit Mean

Metallurgyiroj^i Laboratory HWMF Fourth Quarter 1994 and 1994 Si •#" WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 4B

1300

- 1250 •

ff 1200 3 Z 1150 o < 1100 oc H Z 1050 IU O o 1000 A A A A A AAA AAA A o 950 900 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 4D

1200 i a

3 1150 • 12 1100 O

:.—z—, . 1-—. . . 1 -—. . 1 . . . 1— —H ' • -I ' -j , f 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

MetalluuK*al Laboratory HWMF Fourth Quarter 1994 and 1994i^Bry Si WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 5

4000

3500 I 3000 D 2500 IO N 2000 •

ENTRA T 1500 D • a 1000 A 8 0 A ffl AAAAAAAAAAAAA A A CONC I 500 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 6

3000 T

-~ 2500

z 2000 D

1500 ! ! D —§ 1000 A • DAS AAA AAAAA AAAA A A A A

CONCE N 500

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

Fourth Quarter 1994 and 1994 Su Metallurgicallrgjcai Laboratory HWMF i^uvt WSRC-TR-W0615R^?06 Unclassified

Total Organic Carbon Concentrations Well AMB 7

30000

3 25000 3 z 20000 o < 15000 cc H g 10000 Z

o D O 5000 N B D 0 A,A AA A, AAA A ° A A A 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 7 A

1100 1080 1060 O) 3 1040 z o 1020 g 1000 AAA A A AAA AAA AA DC 980 £Ul O 960 2 O 940 o 920 900 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result Detection Limit Mean

u^^y Metallurgicalirgicai Laboratory HWMF Fourth Quarter 1994 and 1994 S WSRC-TR-93-0615lW<)6 Unclassified

Total Organic Carbon Concentrations WellAMB 7B

1400 D 1350 1300 o> 1250 Z O 1200 1150 z 1100 UJ 1050 U D 1000 AAA A A AAA A A A oz o 950 900 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 8D

3000 D

3 2500 1 2 2000 O • < 1500

g 1000 • a AA AAAAA AAAA z o O 500

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result A Detection Limit Mean

Metallurgicalur^cal Laboratory HWMF Fourth Quarter 1994 and 1994<^fc Su^^uyr WSRC-TR-94-0615RW(>6 Unclassified

Total Organic Carbon Concentrations WellAMB 9D

25000

D ;J 20000

O 15000 H < cc £ 10000 ui O z g 5000 a • A A A A A A A A A A A A • D A a 0 J 1— 1 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations Well AMB 10A

4UUU : D _ 3500 IJ P» 3000 • •S g 2500 a

: . 1 1 1—-J 1 1—— 1 , ,_ , 1 , , , 1 1 , _. f 0 -• 1 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

° Result Detection Limit Mean

Metallurgicalunma Laboratory HWMF Fourth Quarter 1994 and 1994u^ary Si WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations WellAMB 10B

1200 1180 + 1160 1140 Z O 1120 1100 z 1080 uIII 1060 oz 1040 o 1020

1000 -+-A—^s—& ^—H&--&- -ft-4>—t 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary 3 i CONCENTRATION ifjgll) oooooooooo I _» o oooooooooo co - -. . . . I . . >-. I .... I .... I .... I I I , . I , , , , I . I I , I , I . . I . . . rl CO 1/8 9

.

3] CD H CO 1/9 0 a O c Q) Q V CD AA A

1/9 1 3 § O CD D 3- f> c CD a> 2 o 09 3

o 3. A 5" CD 1/9 2 -» 3 O o o3 o O (D 3 r+ ^^

1/9 3 Q) ••* 2 O CD 3 3 CO

J V c 1/9 4 o e a

s a ft) 3 a —A • -A (0 er\ 1 co ai 4k CO a ? to

Total Organic Carbon Concentrations WellAMB 10DD

4000 _ 3500 a D { D D "I 3000 D g 2500 a < 2000 D DDD D cc l- z 1500 111 a D a o D m z 1000 { D Q B o A a • 500

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations Well AMB 11B

IZUU D

Q 1150 "8 D 2 1100 O H < 1050 t- gz 1000 - AAA A A AAA A A A z Oo 950

900 :—,—,—, 1—,—,—i 1—, 1—i—i—i—i—,—i— 1 , , -1 ' _. , 1 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit Mean

Metallurgicalluntea Laboratory HWMF Fourth Quarter 1994 and 1994A»/ Si y WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations Well AMB 11D

3000 T D

3 2500 I 2 2000 O < K 1500 H g 1000 DAD AAA AAA AA AAAA AAA A oZ O 500

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

° Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Carbon Concentrations Well AMB 12D

16000 T a

14000 j ra 12000 3 z o 10000 -t 5 8000 CC 6000 Z UJ O 4000 z o 2000 o a A A AAA A A A A A D A A A A A ' 1— , 1— 1 , L_ j 1 ,— 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result Detection Limit Mean

Metallurgicalurcfcal Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry WSRC-TR-9T-0615f UnclassifiedR-94-06

Total Organic Carbon Concentrations Well AMB 13AR

2100

-r 1900 • 8) 3 1700 z o< 1500

g 1300 O D Z G o a a • o 1100 • AAA A 900 _. 1 , 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations WellAMB 1A

14 -r

13.5 |

13 3 £ 12-5 5 12 EC 3 11-5 o z o 11 o 10.5 10 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result A Detection Limit Mean

Metallurgicalurgwai Laboratory HWMF Fourth Quarter 1994 and 1994u^ery Si WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations WellAMB 2

20 19.5 19 I 18.5 18 | < 17.5 I cc 17 a Ul O 16.5 2 O 16 i O 15.5 15 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations WellAMB 3A

6 5.8 5.6 i O) s 5.4 z 5.2 o p 5 A 2 Z 4.8 UJ z 46 ° 4 4 4.2 4 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 SLj^fci y WSRC-TR-9T-0615*Wo6 Unclassified

Total Organic Halogens Concentrations Well AMB 4

D 200 -I • 180 5 160 •» 140 1 12° 5 100 DC £ 80 IU O 60 • • D 2 4oJ : • 8 D 20 0 : , , , 1 , 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations WellAMB 4A

400

350 5 f S? 300 + z o 250 |

| 200 • D D D D B Dp jjj 150 a O Z 100 a O 50 0 XL 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Suiw WSRC-TR-9T-0615Rtt06 Unclassified

Total Organic Halogens Concentrations WellAMB 4B

160 140 •J O) 3 i?o oz 100 80 RA T \r ZUl 60 oz 40 o 20 • • A • A A B 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations WellAMB 4D

IW • _ 120 _J en S 100 a Z 2 80 n H < fE 60 • z LU 1 D • « 40 D o D a o 20 • D : A 1 , , _. 1 i O , , , 1 1 1 • 1 1 . 1 1 • L- , 1 i • 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry

« WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations WellAMB 5

250

J 200 O)

O 150}

< a • a D D Z 100 ui a a O z o a o 50 a a D 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

o Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations WellAMB 6

120

^ 100 a 1 Z 80 o < 60 cc H Z ui 40 O z o • u 20 a n D +-r* A A A A A A A A A A a D A A D 0 1 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result Detection Limit Mean

Metallurgicaltujatea Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations Well AMB 7

160

_ 140 j P> 120 3z o 100 ; 80 cc D h- z 60 uUl z 40 o o : 20 D

A A A A A A ADA , A ,A |

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations WellAMB 7 A

250 T D

Q 200 ; § s • • • I D • z • a o 150 p : • • a D D h- 100 z B D ui u : z o 50 o

—,—_,—,—i—,—,—,—i—,—,—_,—i—^—,—i— j 0 -1 1 \ • 1 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Suj^uy WSRC-TR-94-0615R44-06 Unclassified

Total Organic Halogens Concentrations WellAMB 7B

160 T • - 140 P> 120 z o 100 { < 80 H Z 60 LoU z o 40 u 20 D D _A_^L 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations WellAMB 8D

16 D

• 14 J 12 z o 10 \ D H • a < cc • H * • D D z A A A A A A A A UJ A A A A A A A A O z o o

.1 , _, 1 1 . . 1 H H H i _l -. f 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

MetallurgicalV Laboratory HWMF Fourth Quarter 1994 and 1994 Siw^fory WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations WellAMB 9D

35 D _ 30 _i a- 25 z 2 20 < cc 15 Ui U z 10 o o 5 AAA A A D A A A A A A

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations Well AMB 10A

20 18 5 16 3- 14 Z 12 o 10 < D I- 8 -t D z uu 6 u A A A D D AAA z 4 o o 2 -t 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit *~— Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Su, •' • WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations Well AMB 10B

40 D _ 35 S> 30

1 25 { 5 20 • Z 15 iu ou 10 o 5 A A AAA AAA A 0

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

° Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations Well AMB 10D

40 • 35

§» 30 3 z o 25 < 20 DC H Z 15 UJ O 10 z D o £ g • D o AAAAAAA 0 A AAAAAAA

0 -+- •+- 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

o Result A Detection Limit • Mean

Metallurgicalurajcai Laboratory HWMF Fourth Quarter 1994 and 1994 Siw WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations Well AMB 10DD

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations Well AMB 11B

45 • 40 { 35 3 z 30 i o 25 < t- 20 Z S 15 10 n 8 • 5 AAA A • 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

Metallurgical'urgicai Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations Well AMB 11D

25 T

=i 20 3, O 15 D

CC

HI O D z A AAA A A A A A A A A A A A A ° 5 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations Well AMB 12D

60 : • -7 50 : • J? • z 40 ; o D h- • D < 30 D tc h- D uZ • O 20 z D o 8 o 10 D n ; A A A A A A A A • A A A A A

:. , , 1— 1 . 1—+. • _, , f H . H . . H . ^ . . H , 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result Detection Limit Mean

MetalluraicalV Laboratory HWMF Fourth Quarter 1994 and 1994 uAuS y WSRC-TR-94-0615 Unclassified

Total Organic Halogens Concentrations Well AMB 13AR

35 T • - 30 _i ^> S 25

2 20

P 15 D 10 O O AAA AAA A A A

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Radium Activities WellAMB 1A

2

1.8 i

1.6

-7 1.4

1.2 * 1 -f A

2 0.8

0.6

0.4

0.2

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result A Detection Limit • Mean

Fourth Quarter 1994 and 1994 Su Metallurgical Laboratory HWMF i^tovt WSRC-TR-§4-0615 Unclassified

Total Radium Activities WellAMB 2

3

2.5

2 O Q. > 1.5 >

O 1 |A

0.5

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Radium Activities WellAMB 3A

3

2.5

5 2 0 a. I 1-5 > S 1 +A 0.5

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

o Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 tj^toySu} WSRC-TRZT-0615RMOl Unclassified

Total Radium Activities Well AMB 4

3.5 a

3

o

a 3 2 | • D >O 1.5 < 1 A A A A

0.5

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

° Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Radium Activities WellAMB 4A

1.2

1 + A A A A A AAA A

0.8 U o. £ 0.6 > ^ 0.4

0.2

A A + -A •— 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Si^^ery ¥ • WSRC-TR-W0615t UnclassifiedR-W06

Total Radium Activities WellAMB 4B

3.5 a 3 • ~ 2.5 a

o a Sr 2

> 1.5 a a < 1 D A A A A

0.5 a

+ 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC'TR-94-0615 Unclassified

Total Radium Activities WellAMB 4D

9 T 8 7 i D 6 a u a 5 a a > 4 + a < 3 I • • 2

1

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

° Result Detection Limit Mean

Metalluroisalurgicai Laboratory HWMF Fourth Quarter 1994 and 1994 Si^^ry • WSRC-TR-94-06157^To« Unclassified

Total Radium Activities WellAMB 5

14 D 12 a .-. 10 • U • • a 8 a D a • D > 6 • a P a O D

< .4 • § a 2 —h 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result & Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Radium Activities WellAMB 6

8 D 7 -F

6

0 5

£ 4 > 3 E< • • 2 + a • • a • a D • D A A A A A A A A D a 1 • 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• Result A Detection Limit Mean

Metallurgicalfura/ca Laboratory HWMF Fourth Quarter 1994 and 1994uflte Syg^i/' y WSRC-TR-W0615RWO6 Unclassified

Total Radium Activities Well AMB 7

3 •. 2.5

2 U Q.

t 1-5 D > D 2 * A A A A D • 0.5 •

^ 1 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Radium Activities WellAMB 7A

CJ.D

D 3

~ 2.5 _J o £ 2

D Q • • D • ACTIVIT Y : A A A A A • • 0.5 • A i| 0 H i -4-^_ , f 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit • Mean

metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994u^mr St^^gry WSRC-TR-94-0615RWO( Unclassified

Total Radium Activities WellAMB 7B

1.2 • • •

1 AAA A A

=d 0.8 O

> 0.6 j> y 0.4 a A A 0.2

-+- 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Radium Activities WellAMB 8D

3.5

3 •

_ 2.5 _j U D • 3 2 D D • > 1.5 • • P • O AAA A A A A A A A A A < 1 D

0.5 -f- + 01/8 8 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgicalurgical Laboratory HWMF Fourth Quarter 1994 and 1994(fdfet Si^^uyf WSRC-TR-tt-0615RWOI Unclassified

Total Radium Activities WellAMB 9D

6

5 +

4 U

> D • % 2 ° 8 • a

A A A A A D D

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result A Detection Limit • Mean

MetaHurg/caf Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Radium Activities Well AMB 10A

3 T

2.5

5 2 O D D t 1-5 > a P A A 3 1 a 0.5

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgical- Laboratory HWMF Fourth Quarter 1994 and 1994 St^tory WSRC-TR-W061S# Unclassified

Total Radium Activities Well AMB 10B

9 T D 8 7 6 o 5 >• > 4 -t 3 < D 2 a n a 1 D a D a 0 ^—i 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Radium Activities Well AMB 10D

J a • 2.5

5 2 U

•**a• • a • P 1-5- a • • D a D 1V 1 H • a a a 0 A A A A D D A D D 9 1 n < -

0.5

0 H H f— H j 1 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit Mean

Fourth Quarter 1994 and 1994 Su^^ry Metallurgicalwrwea Laboratory HWMF w WSRC-TR-94-0615 Unclassified

Total Radium Activities Well AMB 10DD

3

2.5

5 2 + O a. D £ 1.5 > D a I- 3 1 AAA A AAA A A A A

0.5

0 "A— 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Radium Activities Well AMB 11B

5 -

4 O a.

>

5 2 D D a • D • D

• a 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 i^uySu, WSRC-TR-94-061S Unclassified

Total Radium Activities Well AMB 11D

3.5 D 3 I

-, 2.5 I *

> 1.5 D O D < 1 A A AAAAAAA A A

0.5 A A 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

° Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Total Radium Activities Well AMB 12D

2.5

D

*i 1.5

A A A A A AAAA AA A A < • 0.5

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

° Result A Detection Limit • Mean

Metallijmk&l Laboratory HWMF Fourth Quarter 1994 and 1994 Sugary WSRC-TR-94-0615rftSZoi Unclassified

Total Radium Activities Well AMB 13AR

2.5 D

D

£ 1.5 + •

£ 1 A D A A o D D D 0.5

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations Well AMB 1A

2 1.8 1.6 1.4 i 1.2

1 A 0.8 0.6 0.4 0.2 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result Detection Limit Mean

I Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry # WSRC-TR34-0615 Unclassified

Trichloroethylene Concentrations WellAMB 2

40

35 a 35» 30 2 O 25 i P < 20 zy- IU 15 u 10 -£ 2 O o

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichtoroethyiene Concentrations WellAMB 3A

2 1.8 1.6 • 1.4 i 1.2 1 i 0.8 0.6 0.4 0.2 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

I Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry WSRC-TR-ST-0615f UnclassifiedR-94-06

Trichloroethylene Concentrations Well AMB 4

200 -I D

180 a 5 160 3 140 • O 120 • 5 100 EC [£ 80 UJ : D « 60 1: D 8 40 20 -• 0 J- 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations WellAMB 4A

900

- 800 _J 3 700 2 2 600 • 5 • D H 500 • 2 D ° • ui • y 400 O ° 300 200 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result Detection Limit Mean

Metalluimfal Laboratory HWMF Fourth Quarter 1994 and 1994 S #,y WSRC-TR-94-0615f UnclassifiedR-W06

Trichloroethylene Concentrations WellAMB 4B

iz - • zr 10 • D D 1 D z 8 • • D o • p D < 6 - D D • • cc D • Z D Om 4 - • z • o o 2

0 : , , , 1 , . 1 1 1 < 1 1 . 1 .—H H -I _. ( 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations WellAMB 4D

300

3 250 f a 1 a 2 200 O P 150

g 100 p 2 D o D • D o 50 8 a

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 i^erySi WSRC-TR-9T0615RWO6 Unclassified

Trichloroethylene Concentrations WellAMB 5

350

~ 300 -f • • o> 3, 250 z o 200

° Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations WellAMB 6

12

D U 10 a a Z 8 a D o • a 5 a a • a • a • • z ui D z o a

0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

Metallu&al Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry WSRC-TR-94-0615 Unclassified

Trichloroethyiene Concentrations Well AMB 7

/ •

_l 6 ls> 3 5 • • a NOI1 V a • a a • a a a 4 • a D D a 3 • D • a A A D : A • 2 D D > • NCE N O • U 1 - • D A A D a

_l 0 : . . . |_ ' 1- H ^ H ' -• h 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations WellAMB 7A

600 :

500 ; • : • D 400 • S-~B D m 300 : • D D B D 0 D D 200 a " • 100 D

:—,—, ,—i , ,—,—i 1 , , 1 ,—, ,— 0 H \ ^ • -• • 1 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result Detection Limit Mean

I Laboratory HWMF Fourth Quarter 1994 and 1994 Stt^^ry WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations WellAMB 7B

6 T a

3 5 I 2 • O 5 • • oc zI- Ui u z a o • • a u A AAA

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichioroethylene Concentrations WellAMB 8D

12

10

8

6 I

4

2 + ffl • A A A A A A A A A A A A A A A 0 1 , , , 1 ,— 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit • Mean

I Laboratory HWMF Fourth Quarter 1994 and 1994u^^ary Si WSRC-TR-93-0615nWot Unclassified

Trichloroethylene Concentrations WellAMB 9D

1 AAA A A A A A A A AAA A A A A 0.9 0.8 £ 0.7 2 O 0.6 S 0.5 cc 2 0.4 iu O 0.3 8 0-2 0.1 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations Well AMB 10A

1 A A A A A A A A A A A A A 0.9 0.8 3 0.7 0.6 -f 0.5 5tc 0.4 Ul O 0.3 2 O 0.2 U 0.1 -t 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

• Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Sui • WSRC-TR-94-0615f UnclassifiedR-94-06

Trichloroethylene Concentrations Well AMB 10B

5 4.5 5 4 3 3.5 Z 3 o < 2.5 DC H Z 2 • UJ Oz 1.5 o o 1 AAAAA A AAA AAA AA 0.5 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

a Result A Detection Limit —~* Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations Well AMB 10D

1 AAA AAA AAA AA AAAA AAA A A 0.9 0.8 3 0.7 z o 0.6 0.5 -

2 0.4 UJ O 0.3 Z ° 0 2 0.1 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

Metallu&tilUj^U i Laboratory HWMF Fourth Quarter 1994 and 1994w Si WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations Well AMB 10DD

5 T 4.5 4 I 3.5 z o 3 5 2.5 H 2 z 1.5 oLU 1 AAA AAA AAAAA AAAA AAA AA oZ o 0.5 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result A Detection Limit • Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations Well AMB 11B

5 4.5 4 3.5 3 2.5 2 1.5 1 AAA AA DAAA AAA AA 0.5 0 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

D Result A Detection Limit • Mean

I Laboratory HWMF Fourth Quarter 1994 and 1994j^fer Si y WSRC-TR$4-0615R-94-Ot Unclassified

Trichloroethylene Concentrations Well AMB 11D

1 1: A A A A A A A A A A A A A A A A A A A A 0.9 5 0.8 3> 0.7 O 0.6 § 0.5 £ 0.4 Ul O 0.3 J : 8 0.2- 0.1 _, , 1 n - : 1 , , 1 1 1 , 1 L H H 4 -\ , 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations Well AMB 12D

I.Z a

: A A A A A A A A A A A A A A A A A A A A -rj 1 3li> „ 2 0.8 O P g 0.6 1- Z ui 04- A z o O 0.2

0 - :—,—L, , 1 1 . 1 1 ,— H H H -I . ._ , , 1 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Result A Detection Limit Mean

Metallurgicalurcfcal Laboratory HWMF Fourth Quarter 1994 and 1994 S ry WSRC-TR-94-0615 Unclassified

Trichloroethylene Concentrations Well AMB 13AR

2 T 1.8 ; D ^^ • _l 1.6 -• O) • 3 1.4 ; z o 1.2 -: H D 2 1 -f A A • D A D Z 0.8 UJ U 0.6 -: oz o 0.4 -: 0.2 0 - 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

n Result A Detection Limit Mean

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Appendix G

Hydrographs

Metallurgical Laboratory HWMF G-1 Fourth Quarter 1994 and 1994 Summary ' WSRC-TR-944615 Unclassified

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF G-2 Fourth Quarter 1994 and 1994 Summary ^^ WSRC-TRW-C0615 Unclassified

Hydrograph WellAMB 1A

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph WellAMB 2

W 236.5 cc UJ 5 236.4 5

236.3 —i—,—,—,—i—,—,—i—i—,—,—,—|—,—,—,—i 236.2 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgicalm Laboratory HWMF Fourth Quarter 1994 and 1994 ApS^^aryr WSRC-TR-ST-Oi•0615 Unclassified

Hydrograph WellAMB 3A

237 T

^ 236.9 M

236.8 + z o 5 236.7 ui UI OC 236.6 ui

^ 236.5

236.4 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph Well AMB 4

235

| 234

O 233 < > UJ 2 id 32 n cc LU 5 231

230 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metalhm I Laboratory HWMF Fourth Quarter 1994 and 1994S^^ry WSRC-TR-94-0615"RWOI Unclassified

Hydrograph WellAMB 4A

221

w E - 220 Z o < > UJ S 219 < 5

218 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph WellAMB 4B

227

E 226

Z o 225 > UJ _i UJ DC Ul < 224 5

223 •+- 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgicalw Laboratory HWNIF Fourth Quarter 1994 and 1994 Si• " WSRC-TR-94-0615r^SToi Unclassified

Hydrograph WellAMB 4D

236

0) E 235 z o «t 234

ui cc ui ^ 233 5

232 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph WellAMB 5

236

_ 235 "35 E - 234 Z o 233 ft -J ui OC 232 UJ < 5 231

230 -+- 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Suw WSRC-TR-94-0615 Unclassified

Hydrograph WellAMB 6

235

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph Well AMB 7

236 T

_ 235 "» B $• 234

5 233

UJ cc 232 u

5 231

230 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metalluj^al Laboratory HWMF Fourth Quarter 1994 and 1994 S w #" WSRC-TR-94-0615 Unclassified

Hydrograph Well AMB 7A

221

10 E - 220 z Io LU -J 111 219 Ui

218 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph WellAMB 7B

226

I * 225 2 O

224 Hi 5

223 -+- 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical'jrgjcal Laboratory HWMF Fourth Quarter 1994 and 1994 Si(j^fe y WSRC-TR&T-0615w5K)6 Unclassified

Hydrograph WellAMB 8D

235

f 234

O 233

uJ 232 cc m < $ 231

230 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph WellAMB 9D

235

CO E 234

2 o < 233 ui u-ji DC UI i 232

231 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Fourth Quarter 1994 and 1994 S Metalluraicalura^al Laboratory HWMF •" • WSRC-TR-94-0615 Unclassified

Hydrograph Well AMB 10A

245

1 240

2 235 5 § 230 Ui oc £ 225

215 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph Well AMB 10B

225

01 E 224

O < 223

_l UJ tc UJ < 222 5

221 + 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallti/J^H iI Laboratory HWMF Fourth Quarter 1994 and 1994 Si ry WSRC'TRm-0615RWOI Unclassified

Hydrograph WellAMB 10D

237 T

= 236 "in E - 235 Z o < 234 m _J uu ffi 233 H < ^ 232

231

1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph Well AMB 10DD

360

(0 E ~ 359 Z o

g 358 I-

357 I/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallugmal Laboratory HWMF Fourth Quarter 1994 and 1994 S,A p • WSRC-TR-W-0615RWOI Unclassified

Hydrograph Well AMB 11B

224

w E £ 223 Z O 5

UJ OC 222 in < 5

221 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph Well AMB 11D

238

_ 237 E ~ 236 Z o 235 2 UJ cc 234 ui < 5 233

232 + 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metalluu^Blluemtti Laboratory HWMF Fourth Quarter 1994 and 1994j^fcsr S\ y WSRC-TR-9W-0615nWo6 Unclassified

Hydrograph Well AMB 12D

236

^ 235 E

O 234 P

Ui d 233 + cc UJ < § 232

231 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metallurgical Laboratory HWMF Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

Hydrograph Well AMB 13AR

220

w E - 219 z o g

ec 218 in 5

217 1/88 1/89 1/90 1/91 1/92 1/93 1/94 1/95 TIME (Quarters)

Metalh'^t o I Laboratory HWMF Fourth Quarter 1994 and 1994 SiAary WSRC-TR-94-0615 Unclassified

#

Appendix H

M-Area Water-Elevation Maps

Metallurgical Laboratory HWMF H-1 Fourth Quarter 1994 and 1994 Summary WSRC-TR-94-0615 Unclassified

#

THIS PAGE LEFT BLANK INTENTIONALLY.

Metallurgical Laboratory HWMF H-2 Fourth Quarter 1994 and 1994 Summary

) ! i ) ., \ )/,'// I//. S,-'7 ///,V

•• i- \

«< •Ip ' ~7V; ill . . '. (' C\7-^'\ _/• .-'••j i > > > VN\ "\ 7 /" \ \ \ 11 / \ 1 \' / s / REFERENCE DOCUMENT # WSRC-RP-94-67-4 for 4Q94 i v //'" / /. •• i i / .—•• M-Area Hazardous Waste Management Facility Groundwater Monitoring Report

/ / ' .-•• / J ! i X —-'/• / •n PAVED ROAD liU f I UNPAVED ROAD 1 SRS SITE BOUNDARY

. <--" .-'- --' / .-• RAILROAD

4Sfe52D TOPOGRAPHIC CONTOUR 3SJ60 • ^ I ( ( ( CONTOUR INTERVAL 10 FT • \ : • i / / \ 1 Ei INFERRED

* 241.08 i ISOCONCENTRATION CONTOUR ( M < i EI CONSTITUENT 240 ISOCONCENTRATION CONTOUR ->g&v

MSB21C

IB17C L7B

|&] STREAM "•MWHIi M WASTE UNIT BUILDING H GROUNDWATER MONTTOR WELL ® RECOVERY WELL

oo

oo 33.362 T 33.362

LATITUDE- LONGITUDE \

N 33.299 33.299 oo

oo I oo

0 900 1800 2700

Scale 1:900 FT 1:274 M

TITLE: \\\ \\ -' \ \ \\W\ V SAVANNAH RIVER SITE

X > i / \Y\ ADMINISTRATION AND I / ( ^ MATERIALS AREA 4Q'94 v. i' 11 AQUIFER: M-AREA \ i V previously Water Table i l/£ \ i \ ! I ) / POTENTIOMETRIC \ , !\HAV\ SURFACE s ! \ \ »*» =_ Wells Not Used For Contouring t wv V K/( ) J i )

V)))))) / y I i I I \ s 'Hi A'! Y!lA - <[ v v ^ A>m UCc

I ! V\N\\ \UMM, / JI /,-'fc Kvp'r\ ^

REFERENCE DOCUMENT # WSRC-RP-94-67-4 for 4Q94 M-Area Hazardous Waste Management Facility Groundwater Monitoring Report

PAVED ROAD

Oil UNPAVED ROAD SRS SITE BOUNDARY 3 RAILROAD If // Hi •' A' TOPOGRAPHIC CONTOUR I /;AU\ U CONTOUR INTERVAL 10 FT i * /••AMI)/' ^ • \ i i / < i ill)/! 0 INFERRED ( \ V ISOCONCENTRATION CONTOUR nii/ii r 'MM EI CONSTITUENT 7A AAA Y L \ \ ISOCONCENTRATION CONTOUR ' / / V / // / C--"^ MX m STREAM B WASTE UNIT II BUILDING H GROUNDWATER MONITOR WELL ® RECOVERY WELL

QO

oo oo 33.362 33.362

LATTTUDE- LONGITUDE

33.299 33.299

oo

oo oo I 0 900 1800 2700

Scale 1:900 FT 1:274 M

TITLE: SAVANNAH RIVER SITE ADMINISTRATION AND MATERIALS AREA 4Q'94 AQUIFER: UPPER LOST LAKE previously Upper Congaree POTENTIOMETRIC v. \ ^ J W\% SURFACE \ V ( " I J ] VA W\ ) ) \ \ **» = Wells Not Used For Contouring \ \ V. V VC2-'

\ i !!! \ I / //Hi/ i /

i i i • \ \ \ \ I I) ) \ \ \ \ \ A//A# / / > \\U \ -s\Cf<

(// ) )A\VX>:SNVX-V'- \ • H A ^.y T \ \ \ \ \ v \ % \ \ \ r

\ \ \\ \ \ " \ ''•• ' \ \ \\\ \ \\ X y r-^y 11 /' / " \ \. REFERENCE DOCUMENT # ! f^y-'y ^ y WSRC-RP-94-67-4 for 4Q94 \ \ \ W N\ \- \- \V \ v •—'" /",- ; "i \ \ w \ \\\ \ / ( <^~ / / M-Area Hazardous Waste Management / MSBS1B\ \ \ \ \ X / J I \'-~/-y •' ') I / / / /

PAVED ROAD

IxlUNPAVED ROAD 9 SRS SITE BOUNDARY

\ / //yy RAILROAD //!((/ / \M TOPOGRAPHIC CONTOUR \ V \\ ] '' •' CONTOUR INTERVAL 10 FT / ) )V))/f / ./ 0 INFERRED ISOCONCENTRATION CONTOUR /if ('((?(( Vv II! \Jr! ESI CONSTITUENT Wl/l/y ISOCONCENTRATION CONTOUR

m

i«s~~ ~\ I \ \ \\ V \ \ \\ \\ \ \ \ SIN—% } I U.\\\^ x \\ \\\ \ ^ \ \.\'--.\\\\\ \\ \\\ \ \.^. / •' /

/ y m - - » ^-^^ / / /' ( \ \ ; > "\ ! Kl\\\ \\\M V J \\\\W\\\ \U V El STREAM B WASTE UNIT • BUILDING H GROUNDWATER MONITOR WELL RECOVERY WELL

oo

OO 33.362 i33.362

LATITUDE- LONGITUDE

N 33299 33.299

oo

oo oo I I 0 900 1800 2700

Scale 1:900 FT 1:274 M

TITLE: SAVANNAH RIVER SITE ADMINISTRATION AND MATERIALS AREA 4Q'94 AQUIFER: LOWER LOST LAKE previously Lower Congaree POTENTTOMETRIC SURFACE

»*»» —= Wells Not Used For Contouring j \ v—2v\ v—J~n—nr—; sy is xi> ,—o \'

--. i\Vi\ I I \ \ 1 I , / III / ,, / I I ! ' I • i I ' > •••:•'••••v i " / \ / If ^\\\^ • ) ) \\\| lv iI !v - >s£t^ V A\Ht / ,.-- REFERENCE DOCUMENT # WSRC-RP-94-67-4 for 4Q94 1 \ \ \ M-Area Hazardous Waste Management /7r^/7,<. Facility Groundwater Monitoring Report -. \ / /

•./; .„_ / / ^ PAVED ROAD / {({(( ( M UNPAVED ROAD If] SRS SITE BOUNDARY r>- •..,! 3 RAILROAD ' <<#::// , —' ' ' TOPOGRAPHIC CONTOUR \\\\W\^ I i CONTOUR INTERVAL 10 FT \\\\\}/ )) ) ) INFERRED

718.00 \ \ ! / , ISOCONCENTRATION CONTOUR MSB41A \ \ 1 / ,' / 217.80 j j / / / J IS CONSTITUENT 11 '- —- i' ' ! ISOCONCENTRATION CONTOUR i^ii::.£Vu£v.:' BBH-1 >^'V

\ \.\ \\\\ W.V-.\ \ \ -. •. - \ -V V fcOSCELLANBCrtJS \ I \ \ \ \ \ \ \ V\ \\ \ \ \ / \ ./ / \ \ \ v. ww v -v / / I\N \1IW \»\ w W\\ / * \W" \WWA\ \ { \ \ V I I iz v ' i v? x jvi^niTJ. ffl WASTE UNIT • BUILDING H GROUNDWATER MONITOR WELL 5] RECOVERY WELL

oo

00 oo 33.362 133.362

LATITUDE- 1 LONGITUDE

N 33.299 33.299

oo % i—* OO OO I < 0 900 1800 2700

Scale 1:900 FT 1:274 M

TITLE: SAVANNAH RIVER SITE ADMINISTRATION AND MATERIALS AREA 4Q'94 AQUIFER: MIDDLE SAND of CBCU c\ ~"\ V'V\\) (Crouch Branch Confining Unit) previously Ellenton Sand \ POTENTIOMETRIC V ' ' / / / \ X \ \ \ SURFACE ^ ) \ / i i y< \\\ \ % ( V r M ( »»*» =_ Wells Not Used For Contouring i \ \ } 'V) \ \ \