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WsRGTR-9&0143-1 Unclassitled

Key Words

aluminum gross alpha iron manganese radium, total alphaemitting

FIRST QUARTER 1995.

Publication Date: June 1995

Authorized Derivative Classifier and Reviewing Official:

P-AREA ACIDICAUSTIC BASIN GROUNDWATER MONITORING

REPORT (U)

UNCLASSIFIED Does Not Contain Unclassified Controlled Nuclear Information

Westinghouse Savannah River Company Savannah River Site Aiken, SC 29808

Prepared for the U.S. Deparfmenf of Energy under Confrol Confrad No. DE-AC09-89SR18035

DISCLAIMER

This report was prepared as an account of work sponsored by an agency of the United States 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 Road, Springfield, VA 22161.

DISCLAIMER

Portions of this document may be illegible in electronic image pmduck fmnce~ are produced from the best available original dOr?ument,

WSRC-7R-950141-1 Uncl-ed

THIS PAGE LEFT BLANK INTENTIONALLY.

ii

Abstract

WSRCTR-Wl41-1 Unclassified

I

During first quarter 1995, groundwater from the six PAC monitoring wells at the P-Area Acidcaustic Basin was analyzed for herbicides/pest*cides, indicator parameters, metals, nitrate, radionuclide indicators, and other constituents. Monitoring results that exceeded the final Primary Drinking Water Standards (PDWS) or the Savannah River Site (SRS) flagging criteria or turbidity standard during the quarter are discussed in this report.

During first quarter 1995, no constituents exceeded the final PDWS. Aluminum exceeded its SRS Flag 2 criterion in all six PAC wells. Iron and manganese exceeded Flag 2 criteria in three wells, while turbidity was elevated in one well.

Groundwater flow direction and rate in the water table beneath the P-Area AcidCaustk Basin were similar to past quarters.


,

iv

WSRCTR-95-0141-1 Unclassified

Contents ’

?age

Abstract ...................................................................................................................................... 111 ...

. List of Figures ................................ .......................................................................................... vi

List of Tables ...................................................................................................................... 1 ...... Vi

Executive Summary ................................................................................................................... 1

Introduction ......................... L .................................................................. : ; 3 ......................... ......... Discussion ................................................................................................................................... 4

Groundwater Monitoring Data ................................................................................................. 4 Analytical Results Exceeding Standards ................................................................................. 4

Water Elevations. Flow Directions. and Flow Rates ................................................................ 5 Results for Upgradient vs . Downgradient Wells ...................................................................... 6

Turbidity Results Exceeding Standards .................................................................................. 5

Conclus’ions ............................................................................................................................... 7

References Cited ........................................................................................................................ 8

Errata ............................................................................................................................................ 9

Appendix A-Final Primary Drinking Water Standards ....................................................... A-1

Appendix -lagging Criteria .............................................................................................. 5 1

Appendix f f i g u r e s ......................................................................... .................................... C-1

Appendix D-Groundwater Monitoring Results Tables ....................................................... D-1 I

Appendix E 4 a t a QualityNsability Assessment ................................................................ E-1

V

..... -.__ ......... ~ ._-. -.-~--~ . . ...... .... ~ 7... . .. . . . ... .. - > - . - r - , , , ,I . I

.._____.. , -~ . I

_ ~ _ ~

WSRGTR-959141-1 Und-ed

List of Figures

Page

1. Lo'cation of the P-Area AcidICaustic Basin at the Savannah River Site ........................... C-3

.2. Location of Groundwater Monitoring Wells at the P-Area Acidcaustic Basin .................. C-4 3. Piezometric Surface Map of the Water Table at the P-Area AcidCaustic

Basin ..................................................... : ........................................................................ C-5

Lis t of Tables

Page

Maximum Results for Constituents Exceeding Final. Primary Drinking Water Standards.. D-6

Maximum Results for Constituents Exceeding Other Flag 2 Criteria or €he SRS

1.

2. -

Turbidity Standard ............................ ;...; .......................................................................... D-6 . 3. Groundwater Monitoring Results for Indiddual Wells ...................................................... D-7

wSRcITR9SUt43-t Unclassified

Executive Summary

Savannah River Site (SRS) Groundwater Monitoring Program and to comply with the terms of a consent decree signed May 26,1988, by the U.S. District Court'@istn'd of South Carolina, Aiken Division).

During first quarter 1995, groundwater from the PAC wells received analyses for herbicides/ pesticides, ,indicator parameters, metals, nitrate, radionuclide indicators, and other constituents. Monitoring results that exceeded the final Pnmaiy Drinking Water Standards (PDWS) or the SRS flagging criteria or turbidity standard are.discussed in this report.

During first quarter 1995, no constituents exceeded the final PDWS in wells at the P-Area AcidKaustic Basin. Aluminum exceeded its SRS Flag 2 criterion in all six PAC wells with values ranging from 64.4 pg/L to 2050 p g L Iron and manganese exceeded Flag 2 criteria .in wells PAC 2, 5, and 6. The values for iron ranged from 4940 c(BR to 631 0 pg/L and the manganese values ranged from 60.5 pg/L to 419 pg/L. Turbidity was elevated in one well. '

'

Groundwater flow direction to the north-northwest at a rate of 1,300 Wyear in the water table beneath the P-Area AcidiCaustic Basin was similar to past quarters.

P-Area AcjbVCaustic Basin I Firsf Quarter 1995

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I

P-Area Acidcaustic Basin

WSRGTR-95-0143-1 Unclassified


2 First Quarter 1995


Introduction

c

The P-Area Acid/Caustic Basin is located east of P-Area and Road F at the Savannah River Site (SRS) (Figure 1 , Appendix C) on a slope that leads to a tributary of Par Pond. The following description outlines important events in the history of the P-Area Acid/Caustic Basin.

The basin, constructed in the early 1 950s, is an unlined earthen pit that received dilute sulfuric acid and sodium hydroxide solutions and other wastes from several areas within SRS. The basin provided an area for the mixing and neutralization of the dilute solutions before their discharge to nearby streams (Heffner and Exploration Resources, 1991).

The P-Area Acidcaustic Basin remained in seivide until new neutralization facilities became operational in 1982 (Heffner and Exploration Resources, 1991).

Groundwater monitoring wells PAC 1 , 2,3, and 4 (Figure 2, Appendix C) were installed at the P-Area Acidcaustic Basin between November 1983 and July 1984 (EPD/EMS, 1994).

Under the terms of a consent decree signed May 26,1988, by the U.S. District Court (Civil Action 1:85-2583-6, District of South Carolina, Aiken Division), the basin became subject to requirements of Subtitle C of the Resource Consenration and Recovery Act (RCRA), the South Carolina Hazardous Waste Management Regulations (SCHWMR), and associated regulations on June 1 , 1988.

* .

The basin's.monitoring wells were reevaluated during the summer of 1988 to ensure compliance with SCHWMR. As part of this compliance effort, wells PAC 5 and 6 (Figure 2, Appendix C) were installed at the P-Area Acidcaustic Basin dhring fall 1988 (EPDEMS, 1994). t

The revised Groundwater Quality Assessment Plan (WSRC, 1991), submitted to the South Carolina Department of Health and Environmental Control (SCDHEC) on April 30,1991 , indicated that the monitoring well network at the P-Area Acid/Caustic Basin is sufficient to detect effects of the basin on the groundwater.

During July through September 1993, with SCDHEC's permission to proceed at risk, SRS stabilized the H- and P-Area AcidKaustic Basins as proposed in the Interim Status Closure Plan for the F-, H-, K-, and P-Area AcidlCaustic Basins (Revision 3, February 5,1992). The basins were dewatered and filled with compacted clay-rich soil, and a vegetative cover of winter- and drought-hardy grass was established.

Each quarter, the Environmental Protection DepartmenEnvironmental Monitoring Section (EPDEMS) samples the monitoring wells at the P-Area Acid/Caus€ic Basin as part of the SRS Groundwater Monitoring Program. The Environmental Restoration Department provides a quarterly report describing the monitoring results to SCDHEC in compliance with SCHWMR.

P-Area AcidKaustic Basin 3 first Quarfer 1995

WSRGTR95914&1 Unclassified

Discussion

Groundwater Monitoring Data

The EPDEMS groundwater sampling procedure (EPDEMS, 1992) 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 succes.ive measurements, taken within a given time period, are within a specified tolerance range. If a well pumps dry before two well volumes are purged or before stabilization is achieved, it must be revisited within 24 hours for the data to be considered the result of a single sampling event. On the second visit within 24 hours, samples are taken without purging or measuring'stability; thus, these samples may not be representative of the groundwater quality.

During first quarter 1995, samples from the six monitoring wells at the P-Area Acid/Caustic Basin were analyzed for herbicides/pesticides, indicator parameters, metals, nitrate, radionudide indicators, and other constituents, This report describes results that equaled or exceeded the Safe Drinking Water Act final Primary Drinking Water Standards (PDWS) or drinking water screening levels, as established by the US. Environmental Protection Agency (EPA) (Appendix A); the South Carolina final PDWS for lead (Appendix A); SRS flagging criteria that are based on final and proposed PDWS, Secondary Drinking Water Standards, and method detection limits (Appendix B); or the SRS turbidity standard. Constituent levels that equaled or exceeded the final PDWS, screening levels,. or other Flag 2 criteria are described as exceeding standards, above standards, or as elevated.

The final PDWS for individual analytes presented in Appendix A may not always match the SRS flagging criteria presented in Appendix B. The final PDWS generally are used in this compliance report as guidelines to meet regulatory requirements; the flagging criteria are used by EPDEMS to identify relative levels of constituents in the groundwater and as guides for scheduling groundwater monitoring.

Analyh'cal Results Exceeding Standards

No analytes exceeded the final PDWS (Appendix A) during first quarter 1995; see Table 1 (Appendix D).

Constituents that exceeded other Flag 2 criteria (Appendix B) during first quarter 1995 are summarized in Table 2 (Appendix D). Aluminum exceeded the Flag 2 criterion in all PAC wells, with a maximum concentration of 2,050 pg/L in well PAC 5. Iron and manganese exceeded Flag 2 criteria in wells PAC 2, 5, and 6. Iron had a maximum concentration of 6,310'cyln in well PAC 5, and manganese had a maximum concentration of 41 9 pg/L in well PAC 5.

Table 3 (Appendix D) presents all of the results for individual wells and indicates the analytical

analyses that received modifiers (which help identify laboratory accuracy and precision) or that exceeded the EPA-approved holding times during first quarter 1995. Constituent results in Table 3 that appear to equal the final PDWS but are not marked in the ST 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 discrepancies are the result of the rounding of reported results.

. laboratories that conducted the analyses, the dilution factors used in the analyses, and the

.

P-Area AcioYCaustic Basin 4 Fitsf Quarter 1995

WSRG7R45oM3-I Unclassified

Table 3 also lists th6 number of well volumes purged from each well during first quarter 2995 and provides a statement that desciibes incomplete or unsuccessful sampling events. Wells PAC 5 and 6 failed to yield enough water to meet the purging and stabilization criteria; thus, these wells may not have produced representative groundwater samples.

Appendix D 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 EPDEMS.

Turbidity Results Exceeding Standards

Turbidity results, in nephelometric turbidity units 0, of less than 5 NTU meet the EPA's general standard for acceptability of groundwater samples (EPA, 1986). 'That standard, however, is considered unrealistic for monitoring wells at SRS. Gass (1989) has documented turbidity measurements ranging up to 5,000 NTU from properly *

designed wells screened in poorly productive formations. During the 1989 RCRA Compliance Evaluation Inspection, officials from EPA Region IV indicated that the SRS turbidity standard of 50 NTU is conservative. These officials also.agreed that water- table wells in this area often screen nonaquifer formations, rendering development of these wells more difficult due to the low yield and high proportion of mobile fines typical of these formations (Bergren and Bennett, 1989).

TurbidS results from wells PAC 1 , 2,3,4, and 6 were between the EPA standard of 5 NTU and the SRS standard of 50 NTU. Well PAC 5 exceeded the SRS turbidity standard, at 67 NTU.

Water Elevations, Fiow Directions, and Flow Rates

Water-table elevations and the groundwater flow direction beneath the P-Area Acidcaustic Basin are shown in Figure 3 (Appendix C). Water-table elevations indicate that the groundwater flow direction is north-northwest (using universal transverse Mercator coordinates).

The groundwater flow rate in the water table (Aquifer Zone 1lB.J beneath the P-Area AcidICaustic Basin is estimated using the following equation:

Flow (Wday) = Hvdraulic ConductivitV (Wdavl x dh (ftl Porosity (unitless) dl (tt)

A hydraulic conductivity constant of 10 Wday (Geraghty & Miller, Inc., 1990) is a conservative estimate (i.e., the actual hydraulic conductivity should be somewhat less than 10 Wday).

The effective porosity is estimated at 20 percent (Killian et al., 1987); dh is the difference in head, and dl is the length of the flow path to the nearest 10 f€. Flow rate estimates vary depending on the vertical gradient between wells, the size of the area under consideration, and the number.of data points. The flow path is measured along

P-Area Acid/Caustic Basin 5 Firsf Quarter 1995

WSRGTR-9W43-f Unclassified

the map: as much as possible, the path is drawn the same each quarter. B e c a y of ~ these variables, the estimation of flow rate must be considered accurate to an order of

magnitude only. * .

Flow rate estimates are calculated a s follows: flow rate per day is calculated to two significant figures using the above equation. This value is then multiplied by 365 and rounded to two significant figures for the flow rate per year.

Using the above equation with dh = 10 ft and d/,= 60 ft, the flow rate &'mate for groundwater in the water table beneath the P-Area Acidcaustic Basin (Figure 3, Appendix C) is a s follows:

,

3.6 ft/day - 10 x z , - - 0.2 280

3.6 ft/day x 365 days = 1,300 Wyear

R&uk for Upgradient vs. Downgradient Wells

Wells PAC 1 and 4 are the upgradient wells at the P-Area Acidcaustic Basin. Wells PAC 2,3,5, and 6 are downgradient. During first quarter 1995, no constituents exceeded the final PDWS in the upgradient or downgradient wells. The SRS turbidity

. standard was exceeded in downgradient well PAC 5. AIuminum exceeded its SRS Flag 2 criterion in all the upgradient and downgradient wells. Iron and manganese were elevated in downgradient wells PAC 2, 5, and 6.

P-Area AciNCausfic Basin 6 . ' Fint Quarter 1995

WSRG7'R45-M43..9 Unclassified

\ ' Conclusions

During first quarter 1995, no analytes exceeded the final PDWS in any wells at the P-Area AcidKaustic Basin. Aluminum exceeded its SRS Flag 2 criterion in all the upgradient and do'wngradient wells. Iron and manganese each exceeded the Flag 2 criterion in downgradient wells PAC 2, 5, and 6. Generally, constituents found in downgradient wells but not in upgradient wells at a waste management unit are considered products of the waste management unit.

Water-table elevations at the P-Area AcidICaustic Basin indicate that groundwater flow direction was north-northwest (UTM coordinates) at a rate of approximately 1,300 Wyear. Groundwater flow direction in this area.can be accurately defined because the groundwater gradient is large and follows the surface topography. The revised Groundwater Quality Assessment Plan (WSRC, 1991) for the P-Area AcidlCaustic Basin indicates that the monitoring well network at the basin is sufficient to detect effects of past basin operations on groundwater quality. I !

I

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P-Ares AciPVCaustic Basin 7 First Quarter 191995

WSRGlR-959143-1 Unclassified

I

References Cited.

, Bergren, C. L, and C, B. Bennett, 1989. Assessment of SRS Groundwater Monitoring Wells Impacted by Turbidity, WSRC-RP-89-891. Westinghouse Savannah River Company, Aiken, sc.

' EPA.(U.S. Environmental Protection Agency), 1986. RCRA Ground Water Monitoring Technical Enforcement Guidance Document, OSWER-9950.1. Washington, DC.

EPDEMS (Environmental Protection Department/Environmental Monitoring Section), 1992. . Hydrogeologic Data Collection Procedures and Specifications: Sampling Groundwater Monitoring Wells, Manual 3Q5, Chapter 14, Revision 0. Environmental Protection Department, Environmental Monitoring Section, Savannah River Site, Aiken, SC.

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

G a s , T. E., 1989. Monifonng Wells in Non-Aquifer Fonnations. Water Well Journal 43(2):27- 29.

Geraghty & Miller, Inc., 1990. Evaluation of Integrated Waste Facility Closure Capping on Ground-Water Flow and Solute Transport in General Separations Area, Savannah River Site: Flow Model and Particle-Tracking Analysis, Final Report. Prepared by Geraghty & Miller Modeling Group for Westinghouse Savannah River Company, Waste Management Technology, 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 Mite Geohydrology and Waste Sites, DPSP-88-1002. Westinghouse Savannah River Company, Aiken, SC.

.

Killian, T. H., N. L. Kolb; P.Corbo, and I.'W. Marine; 1987. F-Area Seepage Basins, DPST-85-704. Savannah River Laboratory, E.I. duPont de Nemours & Company, Aiken,SC.

WSRC westinghouse Savannah River Company), 1991. F-, H-, K-, and P-Area Acid/Caustic Basins Groundwater Quality Assessment Plan, WSRC-TR-91-178, Revision 1 .O. Westinghouse Savannah River Company, Aiken, SC.

P-Area AciaYCaustic Basin 8 First Quarter 1995

WSRGTR9S0143-1 Unclassified

Errata

In tables with four quarters of data, 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.,

First quarter 1995:

No errata have been reported.

P-Area AcicUCaustic Basin 9 Rrst Quarter 1995

1

P - e a AcidCaustic Basin

WSRGTR-359143-1 Unclassitied


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Q

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- - . - . ~. ,

Appendix A

Final Primary Drinking Water Standards

. -

‘P-Area AcWCaustic Basin

I

A-1

P-Area AcicUCaustic Basin


A-2

WSRGTR-95014Sl - Unclassified

Y

First Quarter 1995 *

WSRCTR-95-0743-1 Unclassified

Final Primary Drinking Water Standards

Analvte

Alachlor Aldicarba Aldicarb sulfonea Aldicarb sulfoxidea Antimony

'Arsenic Asbestos Atrazine Barium Benzene Benzo[aJpyrene Beryllium Bis(2ethylhexyl) phthalate Bromodichloromethane Bromoform 2-sec-Butyl-4,Gainitrophenol~ Cadmium Carbofuran Carbon tetrachloride Chlordane Chlorobenzene Chloroethene (Vinyl chloride) Chloroform Chromium Copper Cyanide Dalapona Dibromochloromethane 1,2-Dibromo3-chloropropane lI2-Dibromoethane l12-Dichlorobenzene 1 ,CDichlorobenzene I

l12-Dichloroethane 1 ,I-Dichloroethylene l12-Dichloroethylene cis-l,2-Dichloroethylene trans-1 ,2-Dichloroethylene Dichloromethane (Methylene chloride) 2,4-Dichlorophenoxyacetic acid 1,2-Dichloropropane Di(2ethylhexyl) adipatea Diquat dibromidea Endothalla Endrin Ethylbenzene Fluoride Glyphosatea Gross alphab Heptachlor Heptachlor epoxide Hexachlorobenzene Hexachlorocyclopentadiene

' P-Area AcicUCaustic Basin

I

- Level

2 3 2 4 6 50 7,000,000 3 2,000 5 0.2 4 6 100 100 7 5 40 5 2 100 2 100 100 1,300 200 200 100 0.2 0.05 600 75 5 7 50 70 100 5 70 5 400 20 100 2 700 4,000 700 1.5E+Ol 0.4 0.2 1 50

- Stitus

Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final Final ' Final

- -

Source

EPA, 1993 EPA, 1993. EPA,. 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993

. EPA, 1993 '

EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 *

EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 '

EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993

__.

first Quarter 1995

' WSRCTR-9501434 Unclassified

Lead tindane Mercury Methoxychlor Nickel Nitrate as nitrogen Nitrate-nitrite as nitrogen Nitrite as nitrogen Nonvolatile beta Oxamyla PCB 1016 PCB 1221' PCB 1232 PCB 1242 ' PCB 1248 PCB 1254 PCB 1260 PCB 1262 Pentachlorophenol Piclorama Selenium Simazinea Strontium-89/90c Strontium-90 Styrene 2,3,7,8-TCDD Tetrachloroethylene Thallium Toluene Toxaphene. 2,4,!5-TP (Silvex) 1,2,4-Trichlorobenrene 1 ,1 ,1-Trichloroethane 1 ,1,2-TrichIoroethane Trichloroethylene Tritium Xylenes

50 0.2 2 40 100 10,000 10,000 1,000 5E+Ol 200 0.5 0.5 0.5 0.5 0.5 0.5 0.5

' 0.5 I 500 50 4 8E+OO 8E+OO 100

. 0.00003 5 2 1,000 3 50 70 200 5 5 2E+01 10,000

Final Final Final. Final .' Final Final Final Final Interim Final Final Final Final Final . Final Final Final- Final Final Final Final Final Final Final Final Final Final Final-, Final Final Final Final Final Final Final Final Final Final

SCDHEC, 1981 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 ,

EPA, 1993 EPA, 1977 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 . EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, 1993 EPA, ,1993 EPA, 1993 EPA, 1993 EPA, 1993

EPA, 1993

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

a 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 uranium. For double radionuclide analyses where each separate radionuclide has its own standard, the more stringent standard is used.

P

P-Area AcicUCaustic Basin A 4 First Quarter 1995

WSRCTR-950143-1 UndassMed

References

EPA ( U S . Environmental Protection Agency), 1977. National Interim Primary Drinking Water Regulations, EPA-570/9-7&003. Washington, DC.

EPA ( U S . Environmental Protection Agency), 1993. Nafional Primary Drinking Wafer Reguh€ions, Code of Federal Regulations, Tie 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.

P-Area AcicUCaustic Basin A-5 First Quarter 1995


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MIS PAGE LEFT BLANK INTENTIONALLY.

A-6

i

Firsf Quarter 1995

WSRGTR95-0143-1 Unclasitied

Appendix B

Flagging Criteria

P-Area AcidCaustic Basin B-f .first Quarter 1995



P-Area AcitUCaustic Basin 5 2 .Rmt Quatfer 1995

WSRC-7R-95-01434 Unclassified

Flagging Criteria

r

The Savannah River Site Environmental Protection DepartmentlEnvironmental Monitoring Section . (EPDEMS) flagging criteria are as follows:

Flag 2 criteria for constituents equal the Safe Drinking Water Act (SDWA) final Primary Drinking 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: ' EPDEMS sets flagging criteria for pH and specific conductance. No flags are set for alkalinity,

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, corrosiv*Q, 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 chloride), ketones, phthalates, and toluene are not assigned flagging criteria unless they have primary drinking water standards. These constituents are analyzed by special request.

Analvte - Unit Flap 1 Flap2

Acenaphthene . Acenaphthylene Acetone Acetonitrile (Methyl cyanide) Acetophenone 2-Acetylaminofluorene Acrolein Acrylonitrile Actinium-228 Alachlor Aldicarbb Aldicarb sulfoneb Aldicarb sulfoxideb Aldrin Alkalinity (as CaC03) Allyl chloride Aluminum Aluminum, dissolved Aluminum, total recoverable ,

Americium-241 Americium-243

P-Ama AcidCawtic Basin B-3

50 I

50 500 500 50 50 100 100 1.64E+03 1 1.5 1 2 0.25 No flag 250 25 '

25 25. 3.17E+OO 3.19E+OO

100 100 1,000 1,000 100 100 200 200 3.27E+03 2 3 2 4 0.5 No flag 500 50 50 50 6.34E+OO 6.37E+OO

- Sourc@

EPA Method 8270 EPA Method 8270 EPA Method 8240 EPA Method 8240 ~EPA Method 8270 EPA Method 8270 EPA Method 8240 EPA Method 8240 Proposed PDWS (EPA, 1991) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8080 Set by EPDEMS

'EPA Method 8240 SDWS (EPA, 1993b) SDWS (EPA, 1993b) SDWS (EPA, 1993b) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991)

First Quarter 1995

Q.pminobipheny1 Ammonia Ammonia nitrogen Aniline Anthracene Antimony Antimony, dissohed Antimony, total recoverable Antimony-I25 Aramite Arsenic Arsenic, dissolved Arsenic, total recoverable Asbestos Atrazine Azobenzene v

Barium Barium, dissolved Barium, total recoverable Barium-14Oc Benzene

. alpha-Benzene hexachloride beta-Benzene hexachloride delta-Benzene hexachloride Benzidine Benzo[a]anthracene Benzorblfluoranthene Benzo[k]Ruoranthene Benzoic acid Benzob,h,iJperylene Benzo[a]pyrene 1 ,CBenzoquinone Benzyl alcohol Beryllium Beryllium, dissolved Beryllium, total recove.rable Beryllium-7 Bis(2-chloroethoxy) methane Bis(2-chloroethyl) ether . Bis(2-chloroisopropyl) ether Bis(chloromethy1) ether Bis(2-ethylhexyl) phthalate Bismuth-214 Boron Boron, dissolved Boron, total recoverable Bromide Bromodichloromethane Bromoform Bromomethane (Methyl bromide) 4-Bromophenyl phenyl ether Butylbenzyl phthalate 2-sec-Butyl-4,6-din~~ophenol Cadmium Cadmium, dissolved Cadmium, total recoverable Calcium

P-Area AcidlCaustic Basin B-4

100 1,000 1,000 100 100 6 6 6 3E+M 100 50 50 50 7,000,000 3 100 2,000 2,000 2,000 ’

9E+OI 5 0.5 0.5 0.5 500 0. I 0.2 0.2 500 100 0.2 I00 100 4 4 4 6E+03 100 100 ‘1 00 100 *

6 1.89E+04 300 300 300 10,000 100 100 10 100 No flag 7 5 5 5 No flag

WSRG7R-95-0143-1 Unclassified

EPA Method 8270 APHA Method 417B EPA Method 350.1 EPA Method 827Q EPA Method 8270 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Interim Final PDWS (EPA, 1977) EPA Method 8270 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) . Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a). . Final PDWS (EPA, 1993a) EPA Method 625 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Interim Final PDWS (EPA, 1977) Final PDWS (EPA, 1993a) EPA Method 8080 EPA Method 8080 EPA Method 8080 . EPA Method 8270 Proposed PDWS (EPA, 1990) Proposed PDWS (EPA, 1990) Proposed PDWS (EPA, 1990) EPA Method 8270 EPA Method 8270 Final PDWS (EPA, 1993a) EPA Method 8270 EPA Method 8270 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Interim Final PDWS (EPA, 1977) EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 Final PDWS (EPA, 1993a) Proposed PDWS (EPA, 1991) EPA Method 6010 EPA Method 6010 EPA Method 6010 EPA Method 300.0 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8240 EPA Method 8270 Set by EPDEMS Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) * Set by EPDEMS

.

v

First Quarter 1995

WSRC-7R-95-01434 Unclassified

Calcium, dissolved Calcium, total recoverable Carbofuran Carbon-14 Carbonate Carbon disulfide Carbon tetrachloride Cerium-141c Cerium-I44 cesium-I 34d Cesium-137 Chlordane Chloride 4-Chloroaniline Chlorobenzene Chlorobenzilate 4-C hloro-m-cresol Chloroethane Chloroethene (Vinyl chloride) Chloroethyl vinyl ether 2-Chlbroethyl vinyl ether Chloroform Chloromethane (Methyl chloride) 2-Chloronaphthalene 2-Chlorophenol . Mhlorophenyl phenyl ether Chloroprene Chromium Chromium, dissolved Chromium, total recoverable Chromium-51c Chrysene Cobalt Cobalt, dissolved Cobalt, total recoverable Cobalt-57 Cobalt-58d Cobalt40 Color Copper Copper, dissolved Copper, total recoverable Corrosivity m-Cresol(3-Methylphenol) o-(=resol(2-Methylphenol) pCresol(4Methylphenol) Cu riu 111-242 Curium-243 Curiurn-243/24le Curium-244 C~rium-245/246~ Curium-246 Cyanide Dalaponb p,p'-DDD p, p'-DDE p, p'-DDT

No flag No flag 20 1E+03 No flag 5 2 5 1.5E+02 1.31 E+02 4.07E+OI 1 E+02, 1 125,000 50 50 50, 50

1 5 5 50 5 50 50 50 1,000 50 50 50 3E+03 0.1 20 20 20 5E+M 4.5E+03 5E+Ol No flag 500 500 500 No flag 50 50 50 6.65E+OI 4.15POO 4.15E+OO 4.92E+OO 3.12E+OO 3.14E+00 100 100 0.5 0.5 0.5

5 .

No flag No flag 40 2E+03 No flag 10 5 3E+M '

261 E+M 8.13E+OI 2E+W 2 250,000 100

100 100 10 2 10 10 100 10 100 100 100 2,000 I00 I00 100 6E+03 0.2 40 40 40 1 E+03 9E+03 lE+02 No flag 1,000 1,000 1,000 No flag 100 I00 100 1.33E+02 8.3E+OO 8.3E+OO 9.84E+OO 6.23E+OO 6.27E+OO 200 200 1 1 , 1

,100

P-Area Acidcaustic Basin 5 5

Set by EPDEMS Set by EPDEMS Final PDWS (EPA, 1993a) Interim Final PDWS (EPA, 1977) Set by EPDEMS EPA Method 8240 Final PDWS (EPA, 1993a) Interim Final PDWS (EPA, 1977) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Interim Final PDWS (EPA, 1977) Final PDWS (EPA, 1993a) SDWS (EPA, 1993b) EPA Method 8270 Final PDWS (EPA, 1993a) EPA Method 8270 EPA Method 8270 EPA Method 8240 Final PDWS (EPA, 1993a) EPA Method 8240 EPA Method 8240 Final PDWS (EPA, 1993a) EPA Method 8240 EPA Method 8240 EPA Method 8270 EPA Method 8270 EPA Method 8240 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Interim Final PDWS (EPA, 1977) Proposed PDWS (EPA, 1990) EPA Method 6010 EPA Method 6010 EPA Method 6010 Interim Final PDWS (EPA, 1977) Interim Final PDWS (EPA, 1977) Interim Final PDWS (EPA, 1977) Set by EPDEMS Final PDWS (SCDHEC, 1981) Final PDWS (SCDHEC, 1981) Final PDWS (SCDHEC, 1981) Set by EPDEMS €PA Method 8270 EPA Method 8270 EPA Method 8270 Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8080 EPA Method 8080 EPA Method 8080

First Quarter 1995

Diallate Di benzfahlanthracene Dibenzofuran Dibromochloromethane 1,2-Dibromo3-chloropropane 1,2-Dibromoethane Dibromomethane (Methylene bromide) Di-n-butyl phthalate 1,2-DichIorobenzene 1,3-Dichlorobenzene 1.4-Dichlorobenzene. 3,3'-Dichlorobenu-dine trans-1 ,CDichloro-2-butene Dichlorodifluoromethane 1,l-Dichloroethane lY2-Dichloroethane 1,l-Dichloroethylene 1,2-Dichloroethylene cis-l,2-Dichloroethylene trans-l,2-Dichloroethylene Dichloromethane (Methylene chloride) 2,CDichlorophenol 2,6-Dichlorophenol 2,4-Dichlorophenoxyacetic acid 1,2-DichIoropropane cis-ly3-Dich1oropropene trans-l,3-Dichloropropene Dieldrin Di(2-ethylhexyl) adipate Diethyl phthalate Dimethoate p-Dimethylaminoazobenzene p-(Dimethylamino)ethylbenne 7,12-Dimethyl beaalanthracene 3,3'-Dimethylbenzidine a,a-Dimethylphenethylamine 2,Mimethyl phenol Dimethyl phthalate 1,3-Dinitrobenzene 2,CDinitrophenol '

2,4-Dinitrotoluene 2,6-Dinitrotoluene Di-n-octyl phthalate 1,CDioxane Diphenylamine

Diquat dibromideb Dissolved organic carbon Disulfoton Eh Endosulfan I Endosulfan I1 Endosulfan sulfate Endothallb Endrin

. 1,2-Diphenylhydrmhe

P-Area AcidCaustic Basin

50 0.15 50 50' 0.1 0.025 5 ,

No flag 300 50 f

37.5 . 50 150 5. 5 2.5 3.5 25 35 50 2.5

50 50 35 2.5 5 . 5 2.5 200 No flag 50 50

' 50 50 50 50 50 No flag 50 250 50 50 No flag 50 50 50 10 5,000

I

5 6

100 0.3 100 100 0.2

' 0.05 10

No flag 600 I 0 0 75 100 300 10 10 5 7 50 70 100 5

100 100 70 5 10 10 5 400 No flag 100 100 100 100 100 100 100 No flag 100 500 100 100 No flag 100 100 , 100 20 10,000 100 No flag 1 1 1 100 2

1


, . EPA Method 8270 Proposed PDWS (EPA, 1990) EPA Method 8270 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8240

Set by EPDEMS Final PDWS (EPA, 1993a) EPA Method 8270 Final PDWS (EPA, 1993a) EPA Method 8270 EPA Method 8240 EPA Method 8240 EPA Method 8240 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a)

' Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a)

EPA Method 8270 EPA Method 8270

Final PDWS (EPA, 1993a) '

EPA Method 8240 EPA Method 8240 EPA Method 8080 Final PDWS (EPA, 1993a) Set by EPDEMS EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 Set by EPDEMS EPA Method 8270 . EPA Method 8270 EPA Method 8270 EPA Method 8270 Set by EPDEMS EPA Method 8270 EPA Method 8270 EPA Method 8270 Final PDWS (EPA, 1993a) EPA Method 9060 EPA Method 8270 Set by EPDEMS EPA Method 8080 EPA Method 8080 EPA Method 8080 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a)

' Final PDWS (EPA, 1993a)

First Quarter 1995

Endrin aldehyde * Endrin'ketone

Ethyl benzene Ethyl methacrylate Ethyl methanesulfonate Europium-1 52 Europium-154 Europium-155 Famphur Fluoranthene Fluorene Fluoride Glyphosateb Gross alpha Heptachlor Heptachlor epoxide Heptachlorodibenzo-pdioxin isomers . 1,2,3,4,6,7,8-HPCDD Heptachlorodibenzo-pfuran isomers 1,2,3,4,6,7,&HPCDF Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachlorodibenzo-pdioxin isomers 1,2,3,4,7,8-HXCDD Hexachlorodibenzo-p-furan isomers l12,3,4,7,8-HXCDF Hexachloroethane Hexachlorophene Hexachloropropene 2-Hexanone lndeno[lI2,3-c,~pyrene Iodine Iodine-129 Iodine-131c lodome€hane ( M e ~ y l iodide) Iron Iron, dissolved Iron, total recoverable Iron-55c Ir0n-59~ Isobutyl alcohol Isodnn lsophorone lsosafrole Kepone Lanthanum-140c Lead Lead, dissolved Lead, total recoverable Lead-21 2 Lindane Liiiutp

P-Area AcicVCaustic Basin

0.5, No flag 350 50 50 3E+01 1 E+02 3E+02 50 50 50 2,000 350 7.5E+OO 0.2 0.1 0.00325

0.00325 0.00225

0.00225 0.5 50 25 0.00225

0.00225 0.002

0.002 50 250 50 50 50 250 5E-01 1.5E+OO 75 150 150 150 1E+03 1 E+M 500 50 50 50 50 3E+01 25 25 25 6.2E+01 0.1 25 .

1 No flag 700 100 100 6E+01 2E+M 6E+02 100 100 100 4,000 700 1.5E+01 0.4 0.2 0.0065

0.0065 0.0045.

0.0045 1 100 50 0.0045

0.0045 0.004

0.004 100 500 100 100 100 500 lE+OO' 3E+OO 150 300 300 300 2E+03 2E+M 1,000 100 100 100 100 6E+Ol 50

50 1.23E+02 0.2 50

50 .

WSRGTR-95914.34 Unclassified

EPA Method 8080 Set by EPDEMS Final PDWS (EPA, 1993a) . €PA Method 8270 EPA Method 8270 Interim Final PDWS (EPA, 1977) Interim Final PDWS (EPA, l Q 7 7 ) Interim Final PDWS (EPA, 1977) EPA Method 8270 EPA Method 8270 EPA Method 8270 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8280


EPA Method 8280 Final PDWS (EPA, 1993a) EPA Method 8270 Final PDWS (EPA, 1993a) EPA Method 8280


EPA Method 8280 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8240 EPA Method 8270 APHA Method 415A Interim Final PDWS (EPA, 1977) Interim Final PDWS (EPA, 1977) EPA Method 8240 SDWS (EPA, 1993b) SDWS (EPA, 1993b) SDWS (EPA, 1993b) Interim Final PDWS (EPA, 1977) Interim Final PDWS (EPA, 1977) EPA Method 8240 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 Interim Final PDWS (EPA, 1977) Final PDWS (SCDHEC, 1981) Final PDWS (SCDHEC, 1981) Final PDWS (SCDHEC, 1981) Proposed PDWS (EPA, 1991) Final PDWS (EPA, 1993a) EPA Method 6010

First Quarter 1995

' I

WSRGTR-95-01434 Unclassified

Lithium, dissolved Lithium, total recoverable Magnesium Magnesium, dissolved Magnesium, total recoverable Manganese Manganese, dissolved Manganese, total recoverable Manganese44 Mercury Mercury, dissolved Mercury, total recoverable Methacry lonitrile Methapyrilene Methoxychlor Methylcholanthrene ,2-Methyl-4.6-dinitrophenol Methyl ethyl ketone Methyl isobutyl ketone 'Methyl methacrylate Methyl methanesulfonate 24ethylnaphthalene Molybdenum Molybdenum, dissolved Molybdenum, totai recoverable ' Naphthalene 1,4Naphthoquinone ' l-Naphthylamine 2-Naphthyiamine Neptunium-237 Nickel . .

. Nickel, dissolved Nickel, total recoverable Nickel-5gc Ni~kel-63~ Niobium-9!jc Nitrate a s nitrogen Nitratenitrite a s nitrogen Nitrite as nitrogen m-Nitroaniline o-Niioaniline p-Nitroaniline Nitrobenzene Nitrogen by Kjeldahl method 2-Nitrophenol 4-Niiophenol 4-Niioquinoline-l+xide N-Nitrosodi-n-butylamine N-Nitrosodiethylamine N-Nitrosodimethylamine N-Niiosodiphenylamine N-Niiosodipropylamine N-Niiosomethylethylamine N-Nitrosomorpholine N-Nitrosopipendine N-N-itrosopyrrolidine 5-Nio-o-toluidine

P-Area AciUCaustic Basin

Pgn- Pgn-

25 25 No flag No flag No flag 25 25 25

1 1 1 250 50 20 50 250 No flag No flag 50 50 50 250 250 250 50 .

-50 ' 50 50 3.53EL00' 50 50 50 1.5E+02

. 1.5E+02

25E+01 *

1.5E+02 . 5,000 5,000 500

50 . 50 50 ' . 500 50 50 50 50 50 50 50 50 50 . 50 50 I

50 50

.50

50 50 No flag No flag No flag 50 ' I

50 50 3E+02 2 2 2 500 100 40 100

500 No flag No flag 100 100 100 500 500 500 100 100 100 100 7.CBE+O 100 100 100 3E+M 5E+Ol 3.E+02 10,000 10,000 1,000 100 100 100 100 1,000 . 100 100 100 100 100 100 100 100 100 100 100 100 100

IO

EPA Method 6010 EPA Method 6010 Set by EPDEMS Set by EPDEMS Set by EPDEMS SDWS (EPA, 1993b) SDWS (EPA, 1993b) SDWS (EPA, 1993b) Interim Final PDWS (EPA, 1977) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8240 EPA Method 8270, Final PDWS (EPA, 1993a) EPA Method 8270 EPA Method 8270 Set by EPDEMS Set by EPDEMS EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 6010 EPA Method 6010 EPA Method 6010 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 Proposed PDWS (EPA, 1991) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Interim Final PDWS (EPA, 1977) Interim Final PDWS (EPA, 1977) Interim Final PDWS (EPA, 1977) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 351.2 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 8270

First Quarter 1935

Nonvolatile beta OctacMdrodibenzo-p-dioxin isomers Octachlorodibenzo-pfuran

* isomers Odor Oil & Grease Oxamylb Parathion Parathion methyl PCB 1016 PCB 1221

, PCB1232 PCB 1242 PCB 1248 PCB 1254 PCB 1260 PCB 1262 Pentachlorobenzene Pentachlorodibenzo-pdioxin isomers 1,2,3,7,8-PCDD Pentachlorodibenzo-pfuran , isomers 1,2,3,7,8-PCDF Pentachloroethane Pentachloronitrobenzene Pentachlorophenol PH PH I

Phenacetin Phenanthrene Phenol Phenols

Phorate Picloramb 2-Picoline Plutonium-238 Plutonium-239 PIutonium-239/240e Plutonium-240

. Plutonium-241c P lutonium-24F Potassium Potassium, dissolved Potassium, total recoverable Potassium40 Promethium-144 Promethium-I46 Promethium-I47 Pronamid Propionitrile Pyrene Pyridine Radium (alpha-emitting)f Radium-226 Radium-228

, pphenylenediamine

P-Ama AcidCawtic Basin

p C i P&

Pgn-

25E+Ol 0.005

0.005

No flag 5,000 100 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 50 0.00275

0.00275 0.00275

0.00275 50 50 0.5 8 4 50 50 50 ' 25 50 0.5 250 50 3.51E+OO 3.11E+Ol 3.1 1E+Ol 3.11E+Ol 3.13E+OI 3.27E+O1 No flag No flag No flag 1.5E+02 5E+01 5E+Ol 262E+03 50 1,000 50 50 1E+O1 1 E+O1 lE+Ol

5E+01 0.01

0.01 . No flag 10,000 200 0.5 0.5 0.5 0.5- 0.5 0.5 0.5 0.5 0.5 0.5 100 0.0055

0.0055 0.0055

0.0055 100 100 1 10 3 100 100 100 50 100 1 500 100 7.02E+OO 6.21 E+Ol 6.21 E+Ol 6.22E+01 6.26E+O1 6.54E+Ol No flag No flag No flag 3E+M lE+02 1 E+02 5.24E+03 100 2000 100 100 2E+Ol 2E+Ol 2E+Ol

WSRC-TR-95-01434 Unclassified

Interim Final PDWS (EPA, 1977) EPA Method 8280

EPA Method 8280

Set by EPDEMS EPA Method 413.1 Final PDWS (EPA, 1993a) EPA Method 8080 EPA Method 8080 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8270 EPA Method 8280


EPA Method 8280 EPA Method 8270 EPA Method 8270 Final PDWS (EPA, 1993a) Set by EPDEMS Set by EPDEMS EPA Method 8270 EPA Method 8270 EPA Method 8270 EPA Method 420.1 EPA Method 8270 EPA Method 8080 Final PDWS (EPA, 1993a) EPA Method 8270 Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Set by EPDEMS Set by EPDEMS Set by EPDEMS Proposed PDWS (EPA, 1986) EPA Method 901.1 EPA Method 901.1 Proposed PDWS (EPA, 1991) EPA Method 8270 EPA Method 8240 EPA Method 8270 EPA Method 8270 Proposed PDWS (EPA, 1991) Proposed PDWS (€PA, 1991) Proposed PDWS (EPA, 1991)

5 9 First Quarter 1995

c

WSRGTR-954143-1 UnclassMed

Radon-222 Ruthenium-I 03c Ruthenium-106 Safrole Selenium Selenium, dissolved Selenium, total recoverable Silica Silica, dissolved Silica, total recoverable Silver Silver, dissolved Silver, total recoverable Simazineb Sodium Sodium, dissolved Sodium, total recoverable Sodium-22 Specific conductance Strontium-89 Strontiurn-89/90e Strontium-90 Styrene Sulfate Sulfide

Surfactants 2,3,7,&TCDD 2,3,7,8-TCDF Technetium-99 I ,2,4,STetrachlorobenzene Tetrachlorodibenzo-pdioxin isomers Tetrachlorodibenzo-pfuran isomers 1,1,1,2-Tetrachloroethane 1,1,2,2-Tetrachloroethane Tetrachloroethylene 2,3,4,6-Tetrachlorophenol Thallium Thallium, dissolved Thallium, total recoverable Thionazin Thorium-228 Thorium-230

I Thorium-232 Thorium-234 Tin

’ Tin, dissolved

1 Sulfotepp

, Tin, total recoverable . Ti11-113~

Toluene o-Toluidine Total carbon Total coliform Total dissolved solids Total hydrocarbons Total inorganic carbon

F-Ama AciNCarcstic Basin

1.5E+02 1 E+02 1.5E+OI 50 25 25 25 No flag No flag No flag 50 50 50 2 No flag No flag’ No flag 2.33E+02 250 1E+O1 ,

4E+OO 4E+OO 50 200,000 5,000 50 No flag 0.000015 0.002 4.5E+02 50 0.00225

3E+02 2E+02 3E+01 100 50 50’ 50 No flag No flag No flag 100 100 100 4 No flag No flag No flag 4.66E+02 500 2E+Ol 8E+OO 8E+OO 100 400,000 10,000 100 No flag 0.00003

9E+02 100 0.0045

0.004 ,

pgn- 0.002 0.004

5 1 0

5 5 2.5 50 1 1 1 50 6.25P01 3.96E+Ol 4.4E+OI 2E+02 10 10 10 1.5E+02 500 50 5,000 0 No flag 5,000 5,000

10 10 5 100 2 2 2 100 1.25E+02 7.92E+OI 8.8E+OI 4.01 E+02 20 20 20 3P02 1,000 100 10,000 0 No flag 10,000 10,000

Proposed PDWS (EPA, 1991) Interim Final PDWS (EPA, 1977) Interim Final PDWS (EPA, 1977) EPA Method 8270 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Set by EPDEMS Set by EPDEMS Set by EPDEMS SDWS (EPA, 1993b) SDWS (EPA, 1993b) SDWS (EPA, 1993b) Final PDWS (EPA, 1993a) Set by EPDEMS Set by EPDEMS Set by EPDEMS . Proposed PDWS (EPA, 1991) Set by EPDEMS b

Interim Final PDWS (EPA, 1977) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Proposed PDWS (EPA, 1990) EPA Method 9030 . EPA Method 8270 Set by EPDEMS Final PDWS (EPA, 1993a) EPA Method 8280 Interim Final PDWS (EPA, 1977) EPA Method 8270 EPA Method 8280

EPA Method 8280

6

EPA Method 8240 EPA Method 8240 Final PDWS (EPA, 1993a) EPA Method 8270 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8270 Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) EPA Method 282.2 EPA Method 282.2 ,

EPA Method 2822 Interim Final PDWS (EPA, 1977) Final PDWS (EPA, 1993a) EPA Method 8270 EPA Method 9060 Final PDWS (EPA, 1993a) Set by EPDEMS EPA Method 41 8.1

, EPA’Method 9060

First Quarter 1995


Total organic carbon Total organic halogens Total organic nitrogen Total petroleum hydrocarbons Total phosphates (as P) Total phosphorus Toxaphene 2,4,5-TP (Silvex) Tributyl phosphate 1,2,4-Trichlorobenzene 1 ,l,l-Trichloroethane 1,1,2-Trichloroethane Trichloroethylene Trichlorofluoromethane 2,4,5-TrichlorophenoI 2,4,6-TrichlorophenoI 2,4,5-Trichloropheno>cyacetic acid 1,2,3-Trichloropropane O,O,O-Triethyl phosphorothioate 1,3,5-Tnnitrobenzene Tritium Turbidiv Uranium Uranium, dissolved Uranium, total recoverable Uranium alpha activity Uranium-2331234e Uranium-234 Uranium-235 Uranium-238 Vanadium Vanadium, dissolved Vanadium, total recoverable Vinyl acetate Xylenes Yttrium48 Zinc Zinc, dissolved Zinc, total recoverable Zinc435 Zirconium-99 ' Zirconi~m/Niobium-95~

5,000 25 500 5,000 No flag No flag 1.5 25 50 35 100 2 5 . 2 5 5 50 50 2 5 5 50 50

pCimL 'lE+Ol . Noflag

P9n- 10 P9n- 10 P9n- 10 p C i 1.5E+Ol p C i 6.9E+OO p C i 6.95E+OO p C i 7.25E+OO p C i 7.3E+OO P9n- 40 P@ 40 P9n- 40 Clgk 5 pg5 5,000 p C i 5E+Ol pgli- 2,500 pgli- 2.500 pgL 2,500 p C i 1.5E+02 pCiL lE+02 p C i 1E+02

10,000 50 1,000 10,000 NO flag No flag 3 50 100 70 200 '

5 5 10 100 100 5 10 100 100 2E+Ol No flag 20 20 20 3E+01 1.38E+Ol 1.39E+O1 1.45E+Ol 1.46E+01 80 80 80 10 . 10,000 1 E+02 5,000 5,000 5,000 3E+02 2E+02 2E+M

EPA Method 9060 EPA Method 9020 APHA Method 420 EPA Method 418.1 Set by EPDEMS Set by EPDEMS Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8270 Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) Final PDWS (EPA, 1993a) EPA Method 8240 EPA Method 8270 EPA Method 8270 EPA Method 8150 EPA Method 8240 EPA Method 8270 EPA Method 8270 Final PDWS (EPA, 1993a) Set by EPDEMS Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991)' Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) Proposed PDWS (EPA, 1991) EPA Method 6010 EPA Method 6010 EPA Method 6010 EPA Method 8240 Final PDWS (EPA, 1993a) EPA Method 901.1 SDWS (EPA, 1993b) SDWS (EPA, 1993b) SDWS (PA, 1993b) Interim Final PDWS,(EPA, 1977) Interim Final PDWS (EPA, 1977) Interim Final PDWS (EPA, 1977)

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

P-Area Aci$UCawtic Basin

I '

Ret Quarter 1995

' WSRGTR-950143-1 Unclassified

References

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

EPA ( U S . Environmental Protection Agency), 1986. Wafer Pollution Control; National Primary Drinking Wafer Regulations, Radionuclides (Proposed). Federal Register, September 30,1986, pp. 3483534862. Washington, DC.

EPA (US. Environmental Protection Agency), 1990. National Mmary and Secondary Drinking Wafer Regulations; Synfbetic Organic Chemicals and lnotganic Chemicals (Proposed Rule). Federal Register, July 25,1990, pp. 30369-30448. Washington, DC.

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

EPA (US. Environmental Protection Agency), 1993a. National primary Drinking Wafer Regulafions. Code of Federal Regulations, Ti le 40, Part 141, pp. 592-732. Washington, DC.

EPA (US. Environmental Protection Agency), 1993b. National Secondary Drinking Wafer Regulations. Code of Federal Regulations, Tie 40, Part 143, pp. 774-777. Washington, DC.

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

'

P-Area AaWCawtic Basin B-12 first Quarter 1995


Appendix C


Figures

C-7 First Quarter 7995

WSRC-TR-95-0 143-1 Unclassified

P-Area AcicUCaustic Basin


C-2 First Quarter 1995

WSRC-TR-95-0143-7 Unclassified

Figuie 1. Location of the P-Area Acidcaustic Basin at the Savannah River Site

P-Area AcicUCausfic Basin C-3 First Quarter 1995


I - I 8i deg. 34' 40' W w

E 3

33 deg. i3'55'N

3676360 LITM N

33 deg. 13' 50'N

3676788 UTM N

33 des. 13' 45# N

P-Area A c i d / C a u s t i c

Basin (904-78G)

Monitoring Well Locations

1

L e g e n d PAC 4 Monitoring w e l l A

0 Acid/caustic basin

200

Figure 2. Location of Groundwater Monitoring Wells at the P-Area Acidcaustic Basin

P-Area AciUCaustic Basin E 4 First Quarter 1995

Y


I I I ! 33 dog. 13‘ 55’ N P-Area Acld/Caustic, Basin.

FLOW RATE: 1300 F T / Y R

I 33 deg. 13’50’N \\ water elevation

( f t msl ) Horizontal groundwater/-

284.24

flow direct lon f Acid/caustlc basin

Contour Interval: 5 f e e t

Scale in feet 200 0 200

U Scale in meters I - - ’ 1

50 0 50

Figure 3. Piezometric Surface Map of the Water Table at the P-Area AcidCaustic Basin

P-Area AciNCauStic Basin G5 First Quarter 1995

WSRC7R-9501434 Unclassifided

THIS PAGE LEFT BLANKINTENTIOWY. , .

c


. -

.

C 6 First Quarter 1995

L

Q

Appendix D

Groundwater Monitoring Results Tables

P-Area Acidcaustic Basin 5 1 First Quarfer 1995

c



'THIS PAGE LEFT BLANK INTENTIONALLY.

P 2

.

First Quarter 1995


Key to Reading the Tables

. The follovhng abbreviations may appear in the data tables:

Constituents

1,2,3,4,6,7,8-HPCDD 1,2,3,4,6,7,8-HPCDF 1,2,3,4,7,8-HXCDD

Lindane PCB

1,2,3,7,&PCDF ’

Sp. conductance TCDD TCDF

lY2,3,4,7,8-HXCDF

1,2,3,7,8-PCDD

Laboratories

CN EM

GE and GP sc SP TM WA and WS

I

Sampling Codes

L

P

S X

Sampling Methods

B P S

v units

P-Area AciNCaustic Basin

1,2,3,4,6,7,&heptachIorodibenzo-pdiom’n 1,2,3,4,6,7,8heptachlorodibenzo-p~~n 1,2,3,4,7,&hexachlo~ibenz~~iom’n 1 , 2 , 3 , 4 , 7 , & h e x a c h I o r i ~ ~ o - p ~ ~ n . gamma-benzene hexachloride polychlorinated biphenyl 1,2,3,7,&pentachlorodibenzo-pdioxin 1,2,3,7,8-pentachlorodibenzo-pfuran specific conductance tetrachlorodibenzo-pdioxin tetrachlorodibenzo-pfuran \

Clemson Technical Center, Inc. Environmental Protection DepartmentEnvironmental Monitoring Section (EPDEMS) Laboratory General Engineering Laborafories Savannah River Technology Center . Spencer Testing Services, Inc. TMAEberIine Roy F. Weston, Inc.

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

sample collected using an open-bucket bailer sample collected using a bladder pump sample collected using a single-speed centn’fugal downhole pump sample collected using a variable-speed pump

D-3 Firsf Quarter 1995

WSRGTR-950143-1 Unc/asMed

m g k msl MSL NTU p C i pCiimL PH crsn pS/cm

Other

cs DF . H Mod PDWS PVC ST TOC

exponential notation (e.g., I.IE-OS = 1.1 x 10.g = 0.000000001 1) milligrams per liter mean sea level

, million structures per liter turbidity unit picowries per liter picowries per milliliter pH unit micrograms per liter microsiemens per centimeter

carbon steel I dilution factor column in data tables holding time column in data tables

primary drinking water standard polyvinyl chloride exceeded standard column in data tables top of casing

. modifier column in data tables

Holding Times

Standaid 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 e) in the H (holding time) column indicates that holding time was exceeded. Analyses 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 t o 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 resufts.

P-Area Acid;Caustic Basin D-4 first Quarter 1995


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 quality assurance/quality control information either at the same time as analytical results or in a quarterly 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 EPDEMS 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 modifier

(Blank)

J

I

L

M

R

T

U

v Y

4

6

P-Area AaWCaustic Basin

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

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

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

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

Presence of the analyte is verified but not quantified. I

Result was rejected because performance requirements in the sample analysis or associated quality control analyses were not met.

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

Material analyzed for but not detected. Analytical result reported is less than the sample quantiation limit.

Analyte was detected in an associated method blank.

Result was obtained from an unpreserved or improperly preserved sample. Data may not be accurate.

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

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

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

Result is associated with QA results indicating matrix interference.

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

D-5 Fi& Quarter 1395

J WSRGTR-95-0143-1

Unclassified

Table 1. Maximum Results for Constituents Exceeding Final Primary Drinking Water Standards - Well . -Constituent - Unit 2Q93 3894 4Q94 . 1Q95 . - Mod

Na None N N

Note: The modifier column applies to first quarter 1995 data only.

a N = not applicable.

N N

Table 2. Maximum Results for Constituents Exceeding Other Flag 2 Criteria or the SRS Turbidity . Standard

Mod Constituent - Unit 1495 - PAC 1

PAC 2

Aluminum

Aluminum '

Iron Manganese

PAC. 3 Aluminum

PAC 4

PAC 5

PAC 6

Aluminum

Aluminum ' . Iron Manganese '

Aluminum Iron Manganese Turbidity , .

179 I66 64.4 5430 60.5

303

122

2050 631 0 41 9

414 4940 31 9 675

Jv

Notes: These resutts do not include field data. The groundwater samples are unfittered. Thus, the results for metals are for total recoverable metals. Flags are established by EPDEMS and are based on final PDWS, Secondary Drinking Water Standards, or method detection limits (Appendix B).

P-Area AcidCaustic Basin D-6 Firsf Quarter 1995

, WSRGTR95-01434 Unclassified

Table 3. Groundwater Monitoring Results for Individual W e b

, W E m P A C 1

SRSCoord. Lat/Lontzitude ScreenzOneEIevation T m o f ~ Casing pumE Formation N 43543.3 33.230963 Deg N 283.9-253.9 f€ msl 295.9 ft msl 4" PVC S Water Table E 66753.4 81.575658 Deg W

Sample date: 01/06/95 Depthto water: 9.77 ft (2.979 m) below TOC Water elevation: 286.13 f€ (87.23 m) msl Sp. conductance: 32 uS/cm

Water evacuated before sampling: 375 gal midiw 11 NTCT

LABORATORY ANALYSES

E STAnaIvte -

Carbon tetrachloride Chloroform

Nitrate as nitrogen NomoIatiIebeta Tetrachloroethylene 1, 1, l-Tricbloroetbne Trichloroethylene Tritium Aluminum, totalrecoverable Aluminum, total recoverable Arsenic, total recoverable Arsenic, total recoverable Barium, total recoverable Barium, total recoverable Cadmium, total recoverable Cadmium, total recoverable Chromium, total recoverable Chromium, total recoverable Iron, total recoverable Iron, total recoverable Lead, total recoverable Lead, total recoverable Manganese, total recoverable Mmganese, total recoverable Mercuy, total recoverable Selenium, total recoverable Selenium, total recoverable

Gross alph

Time: 13:38 pH: 5.3

Water tempratme: 18.3 deg C A l k d h d y 2 w '

Volumes pur@ 17.7 well volumes

m <1 <1 < -.l 569 < .6 <1 <1 <1 4.2 179 166 < 12 <l2 26.8 26.9 .8 1.1 1.5 < 10 119 152 23.6 26.1 7.3 7.2 < :7 < 19 < 19

DF 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Mod

U U UI

UI U U U

U U

J J J UJ

J

U UJ UJ

Lab

WA WA TM WA TM WA WA WA TM

2 WA 2 WA 0 WA 0 WA 0 WA 0 WA 0 WA 0 WA 0 WA 0 WA 0 ' WA 1 WA 0 WA 1 WA 0 WA 0 WA 0 WA 0 WA 0 WA

* = exceeded holding time. + = exceeded screening level or final primary drinking water standard.

P-Area AciaYCausfic Basin 0-7. First Quarter 1995

,

WSRGTR-9M143-1 UnclassMed

E ST Anaivte

S&ry total recoverable Silvery total recoverable Sodium, total recoverable

. Sodium,totalrewverable SuIfate Total organic halogkns PH *

tolalalpha~mitling Number ofRecords: 36

,

Result C 1.4 1.3 3790 3860 2850 C 161 5.57 2.3

1 u 1 1 ' 1 1 1 U 1 J 1

9, Lab ' (

-0 W A 0 W A 0 W A

, o 'WA 0 W A 0 W A 0 W A 0 TM

* = &ded holding time, + = exceeded screening level or final primay drinking water standard.

P-Area AcidCaustic Basin D-8 Firsf Quarter 1995

.

‘ WSRGTR-95-0143-1 Unclassified

WET& PAC 2

SRSCoori Lathngitude ScreenZoneElevation TOD of Casing Casing -Pum~ Formation N 43527.7 33.231299 Deg N 277.9-247.9 ft msl 284.8ftmsl 4”PVC s Water TabIe 66980.9 81.575029 Deg W

. .

sample date: 01/06/95 Depth to watec 13.63 ft (4.155 m) below TOC Water elemtiox 271.17 ft (82.67 m) msl Sp. conductance: 64 uS/cm Midity: 21 NTLT Water evacuated before sampling: 105 gal

LABORATORY ANALYSES

E ST Analvte

* *

carbon tetrachloride Chloroform

Nitrate as nitrogen Nonvolatile beta Tetrachloroethylene l,l,l-Trichloroethane Trichloroethylene TritiW Aluminum, total recoverable Arsenic, total recoverable Baxium, total recoverable Cadmium, total recoverable Chromium, total recoverable ban, total iecoverable Lead, total recoverable Minganese, totalrecoverabIe Mercury, total recoverable Selenium, total recoverable Silver, total recoverable Sodium, total recoverabIe Sulfate Total organic halogens PH PH Radium, total alpha-emitting

Gross alpha

Number of Records. 26

Time: 10:24 pH: 4.4

Water t e m m : 18 deg C

Volumes purged: 6.9 well volumes

Alk&iW8mgnr

ResuIt

< 1 1 < 1 1 c.4 1 47 1 x.7 1 e1 1 c1 1

. e1 A1 1.4 1 64.4 1 e12 1 21.8 1 <4.7 1 <10 1 5430 1 2.1 1 60.5 1 <.7 1 <19 1 .22 1 3970 1 8380 1 28.7 1 6.28 1 6.27 1 1.3 1

Mod U U UI J UI U U U

N U

U U

J

U u J-

J T J

Lab

W A W A

W A TM W A W A W A TM W A W A W A W A W A W A W A W A W A WA W A W A W A W A W A W A TM

.iu

* = exceeded holding time. +=*exceeded screening level or fmaI primary drinking water standard.

P-Area AciNCaustic Basin D-9 Firsf Quarfer 1995

WSRGTR-95-0143-1 I

UnclassHed

wEI;L: PAC 3

SRSCmrd- Lat/LonPitude ScreenZoneElevation Tor, ofcasing Chink -pumD Formation N 43585.6 33.231232 Deg N 282.9-252.9 ft msl 289.9ftmsl 4"PVC s 66861.4 81.575456 Deg W

FIELDMEASUREMENTS

-le date: 01/06/95 Time: 11:ll Depthto watec 18.57 f€ (5.662 m) below TOC Water el&ation: 271.33 ft (82.72 m) msl Sp. condudance: 164 uS/cm Turbidiv 8 NTU

\

pH: 6.2 Alkalinity: 30 mgL Water tempe& 19.7 deg C

waterevacuatedbefore sampling: 54 gal Volumes purged: 4.5 well volumes

LABORATORY MALYSES

E STAnafVte

carbon tetrachloride Chlordorm Gross alpha Nitrate as nitrogen Nonvolatilebeta Tetrachloroethylene l,l,l-Trichloroethane Trichloroethylene Tritium 'Aluminum, total recoverable Arsenic, total recovefable Barium, total recoverable Cadmium, total recoverable Chromium, total m e r a b l e Iron, total recoverable Lead, total recoverable Manganese, total recoverable Mercury, total recoverable Selenium, total recoverable Silver, total recoverable Sodium, total recoverable Sulfate Total organic halogens PH Radium, total alpha-emitting

*

Number OfRmrds 25

Result

I < 1 1 < 1 1 <,1 . 1 127b 2 <-.4 1 < 1 1

< 1 1 3.4 ' 1 303 1 <l2 1 70.7 1 <4.7 1 7.7 1 370 1 6.1 1 7.1 . 1 K.7 1 <19. 1 < 1.4 1 21400 1

' 38600 10 <161 1 6.03 1 1.6 1

, <1 1

U U UI

UI U U U

U

P J

J

U U U

U J

Water Table

Lab

W A W A TM W A T M - W A W A W A TM W A W A W A W A W A W A W A \

W A W A W A W A W A W A W A W A TM

= exceeded holding time. + = exceeded screening level or final primary drinking water standard.

P-Area AcicUCausfic Basin . D-10 First Quarter 1995


WELL: PAC 4

SRSCoord Lamnnitude Screen Zone Elevation Tor, &Casing -Pump Formation N43495.4 33.231036 DegN 280.6-250.6fimd 291.6 ft msl 4” PVC S Water Tihle 66863.2 . 81.575276 Deg W

Sample date: 01/06/95 Depth to water 6.1 ft (1.860 m) below TOC Water elevation: 285.53 (87.04 m) msl Sp. conductance: 84 uS/cm

Water emkited before sampling: 135 gal Turbidity 7NTu

LABORATORY ANALYSES

ST Analvte

Carbon tetracuoride Chloroform

Nitrate as nitrogen ’

Nonvolatile beta Tetrachloroethylene 1 1 1-Trichloroethane Trichloroethylene Tritium Al- totalrecoverable Arsenic, total recoverable Barium, total recoverable Cadmium, total recoverable Chromium, total recoverable Iron, total recoverable Lead, total recoverable Manganese, total recoverable Wrcury, total recoverable Selenium, total recoverable Silver, total recoverable Sodium, total m e r a b l e Sulfate Total organic halogens Total organic halogens

Gross alpha

*’. pH

Number OfRecOrds: 26 Radium, total dpha-e~tting

Time: 1231

Ahlinity4rngn Water temperatme: 19 deg C

pa. 5.3 *

Volumes purged: 5.9 well volumes

Result

< 1 < I < .6 1160 < .3 c1 < 1 < 1 3.5 122 < 12 21.8

4.7 3.7 82 9 5.5 < .7 < 19 1.3 14400 24600 < 161 < 161 5.41

gE 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1. 1 1 1 1 4

1 1

1.

1.5 i

Mod

U U UI

UI U U U

U

U J

J J U U J

U U J

Lab

WA WA TM WA ‘TM WA WA WA TM WA WA WA . WA WA WA WA WA WA WA WA WA WA WA WA WA TM

* = exceeded holding time. + = exceeded screening level or fmal primary drinking water standard.

P-Area AciNCaustic Basin D i l l Firsf Quarfer 1995

W S R G T R - $ ~ - O ~ ~ ~ - ~ Unclassified

WE1;L: PAC' 5

SRSCoord La f in&ude Screen Zone Elmtion TOD of Casing Casink PUmD Formation ' N43561.7 33.231254 DenN 275.1-255.1 fi msl 289.3 ft msl 4" PVC s Water Table

. . 66907.1 81.575289 Dei W

FELDMEASUREMENTS

Sample date: 01/06/95 Time: 11:38 Depth to water 13.41 ft (4.088 m) below TOC Water elevation: 275.89 ft (84.11 m) msl Sp. conductance: 438 uS/cm Turbidity: 67 NTZT Water evacuated before sampling: 13 gal Well went d q duringpurging samples collected after well recovered

pH: 7.3

Water temperature: 17.4 deg C -. 258 mg/L

Volumespurged: lwellvolumes

LABORATORY ANALYSES

ST M y t e

Benzene Bromodichloromethane , Bromoform

Chlorobenzene Chloroethene (Viiyl chloride) Chloroform Dibromhloromethane 1,2-Dichloroethane 1,l-Dichloroethylene trans-1,2-Dichloroethylene Dichloromethane (Methylene chloride) 1,2-Dichloropropane Ethylbenzene Gross alpha

' Nitrate as niqogen ' Nonvolatilebeta

, Carbon tetrachloride

Tetrachloroethylene Toluene

. l,l,l-Tnchloroethane 1,1,2-Trichloroet.hane Trichloroethylene TritiUUl Xylenes ~~uminum, total retroverable Arsenic, total recoverable ' Barium, total recoverable Bromomethane (Mkthyl bromide) Cadmium, total recoverable Chloroethane 2-Chloroethyl vinyl ether

a Chloromethane (Methyl chloride) .

Result

< 5 1 < 5 1 < 5 ' 1 < 5 1 < 5 1. <10 1 < 5 1 < 5 1 < 5 1 ' < 5 '1 < 5 1 1.08 1 C.5 ' 1 < 5 1 <-.4 1 50 1 6.5 1 ,<5 1 < 5 1 < 5 1 < 5 1 < 5 1 2.2 1 < 5 1 2050 1 1.7 1 122 1 < l o 1 1.2 1 <10 1 <10 1 < l o 1

Mod

U U U U U U U U U U U N U U

J

U U U U U

U

J

U J U U U

tJI

Lab

W A W A I

WA W A W A W A W A W A W A W A W A W A W A W A TM WA TM WA W A W A W A W A TM W A WA W A W A W A W A W A W A W A

* = h d e d holding time. + = exceeded screening level or final primary drinking water standard.

P-Area AcitVCaustic Basin D-12 First Quarfer 1995

WSRGTR-9591434 Unclassified

g ST M v t e

Ckromium, total recoveiab1e 1,l-Dichloroethane

trans-1,3-Dichloropropene Iron, total recoverabIe Lead, total recoverable Manganese, totalrecoverable Mercury, total recoverable Selenium, total recoverable Scver, total recoverable Sodium, totalrecoverable Sulfate’ 1,1,2,2-Tetrachloroethane

’ Total organic halogens Tnchlorofluoromethane

I cis-1,3-Dichloropropene

PH Radium, total alphaemitting

* Number OfRecords: 49

Result

6.7 C 5 <5 c5’ 6310 32.2 419 c .7 c 19 < 1.4 32100 35400 < 5 C 161 <5 7.12 1.8

1 T 1 U 1 U 1 U 1 1 . 1 1 U 1 U 1 U 1 5 1 U 1 U 1 U 1 J 1

-0 0 0 0 2 1 2 0 0 0 0 0 0 0 0 0 0

WA

WA W A WA W A W A W A WA W A W A W A WA W A WA WA TM

WAX

* = exceeded holding time. f = exceeded screening level or final primary drinking water standard.

, P-Area AcicVCaustic Basin D-13 First Quarter 199

WSRGTR-9591434 Unclassified

SRSCoord LatlLongtude ScreenZoneElevation To~ofCasine; Casink .Pumu Formation N43580.1 33.231274 DegN 275.2-255.2 ft msl 289.4ftmsl 4"PVC s Water Table 66894.7 .81.575358 Deg W

Sample date: 01/06/95 Time: 11:41 Depth to watec 14 ft (4.268.m) below TOC

Sp. conductance: 243 uS/cm Turtidi$22 NTLT

Well went dry duringpurging samples collected after well recovered

pH: 6.3 *

Water temperature: 16.3 deg C Wak elemtiox 275.4 ft (83.96 m) msl . Alkabi~88mg/L

Water evacuated before sampling 12 gal Volumes purged: 0.9 well volumes \

-LABORATORY ANALYSES

E ST Analvte

Carbon tetrachloride Chloroform Gross alpha Nitrate as nitrogen Nbnvolatile beta Tetrachloroethylene l,l,l-Tnchloroethane Trichloroethylene TritiUUl Aluminum, total recoverable Arsenic, total recoverable Barium, total recoverable Cadmium, total recoverable Chromium, total recoverable Iron, total recoverable Lead, total recoverable . Manganese, total recoverable Mkrcury, total recoverable Selenium, total recoverable Silver, total recoverable Sodium, total recoverable Sulfate Total organic halogens PH PH Radium, total alpha-emitting

Number ofRecords: 26

* * '

i Result

. <1 1 < 1 1 C.3 1 43 1 2.3 1 < 1 1 < 1 1 < 1 '1 3.2 1 414 *1 <12 1 73.2 1 <4.7 1 3 1 4940 1 <13 1 319 1 <;7 1 <19 1 < 1.4 1 30800 1 31100 5 19.4 1 6.54 1

1.3 1 6.53 ' 1 ,

Mod

U U UI J

U U U

U

U J .

U

U U U

J J J

W A W A TM W A .TM W A W A W A TM W A W A W A W A W A W A W A *

W A W A WA W A W A WA WA W A W A TM

= exceeded holding time, + = exceeded screening level gr fmd prim* drinking water standard.

P-Area AciNCaustic Basin 0-14 First Quarter 1995 '

Appendix E

' Data QualityAJsability Assessment

L-

P-Area Acidcaustic Basin €4 First Quarter 1995

P-Area AcicUCaustic Basin J

WSRCTR-950143-1 Unclassified


E-2 First Quarter 1995 Y

W S R C l R - ~ l 4 3 - 1 Unclassified

Data Quality/Usability Assessment

Quality assurance/quality control (QA/QC) procedures relating to ac&acy and precision of analyses performed on groundwater samples are followed in the field and laboratory and are reviewed prior to publication of results. The review by the Environmental Protection DepartmenUEnvironmental Monitoring Section (EPDEMS) of the volume of analytical data acquired each' quarter and presented in various reports is an ongoing process; *tS review of the W Q C data cannot be completed in time to meet the deadlines for the reports required by the Resource Conservation and Recovery A d and associated regulations. Other site and regulatory personnel can obtain further information on the data quality and usabilii in a variety of ways, including those descn'bed 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 W Q C 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 assessing data usability. Result modifiers designed by EPDEMS and used by the primary laboratories 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 samples. The non-radionuclide contract laboratories analyze commercial reference samples every quarter at EPDEMS' request. The results of these analyses are presented in the EPDEMS 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 EPDEMS quarterly reports.

Analysis of blank provides a tool for assessing the acduracy of both sampling and laboratory analysis. Results for all field blanks for the quarter can be found in the EPDEMS quarterly reports. Any field or laboratory blanks that exceed established

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 be 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 EPDEMS, 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 qualifiers to the data identifying the anomalous results.

. minimums are identified in the same reports, in tables associating them with

P-Area Acidcaustic Basin E-3 First Quarter 1995

WSRCTR-9501434 Undassfied

Sample-specific accuracy for both organic and inorganic parameters can be assessed ' by examination 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 cornpounds appropriate to the analyses being performed, typically five volatile organic compounds for volatile organics analyses, eleven semivolatile compounds for semivolatiles, six pesticide 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 (Le., measured in excess of the value obtained for the unspiked sample) is a direct measure of analytical accuracy. EPA requires matrix spikehnatrix spike duplicates to be run at least once per 20 samples of similar matrix.

Matrix spikehatrix spike duplicate results are reported to EPDEMS but are not published. For organic compounds, according to EPA guidelines, no action is taken on the basis of matrix spikehatrix spike duplicate data alone (Le., 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 problem in the analysis of one or more analytes.

-

In the case of inorganic compounds, such as metals, the matrix spike sample analysis provides 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 assessed through the use of duplicates initiated by the laboratory and blind replicates provided by EPDEMS. 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 qualifier(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 EPDEMS quarteily 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 (intralaboratory 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 amy'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-Specitic Accuracy and Precision

P-Area AcicUCaustic Basin E 4 Rmt Quarter 1995

WSRGTR-9501434 Unc/assiiied

The contract laboratories' EPA-approved laboratory procedures include W Q C requirements as an integral part of the methods. Thus, knowledge of the method used in' obtaining data is an important component of determining data usability. EPA has conducted extensive research and 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 W Q C procedures. A listing of the methods used by the primary laboratories during foutth quarter 1993 is given below along with the source for the method descn'ption. Many, if not all, of these sources include presentations of representative accuracy and precision results.

Methods Used by the Contract Laborafories . Method

EPA120.1 EPAI 50.1 EPAl60.1 EPA160.2 EPA180.1 EPA200.7 EPA204.2 EPA206.2 - EPA239.2 EPA245.1 EPA270.2 EPA279.2 EPA300.0 EPA310.1 EPA325.2 EPA335.3 EPA340.2 EPA353.1 EPA353.2 EPA365.1 EPA365.2 EPA376.2 EPA413.1 EPA415.1

EPA418.1 EPA420.2 EPA900.0 EPA9OO. 1 EPA906.0 EPA601 0

I EPA7041 EPA7060 EPA7421 EPA7470 EPA7740 EPA7841 EPA8010 EPA8080 EPA8150 EPA8240 EPA8270' EPA8280

Used to Analyze

Specific conductance

Total dissolved solids Total dissolved solids, total suspended solids Turbidity Metals Antimony Arsenic Lead Mercury Selenium Thallium Chloride, nitrite, sulfate Alkalinity Chloride Cyanide Fluoride Nitrogen, nitratenitrite Nitrogen, nitrate, nitrite, or combined Phosphorus, all forms (reported as total phosphates) Phosphorus, all forms (reported as total phosphates) Sulfide I

Oil & grease Dissolved organic carbon, total inorganic carbon, total organic carbon Total petroleum hydrocarbons Phenols Gross alpha, nonvolatile beta Total alpha-emitting radium Tritium Metals Antimony Arsenic Lead Mercury Selenium Thallium Chlorinated volatile organics Organochlorine pesticides and PCBs Chlorinated herbicides GCMS volatiles GCMS semivolatiles Dioxins and furans

PH

P-Ama Acidcaustic Basin €4

Source - EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPAEMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1991 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1983

EPA EMSL, 1983 EPA EMSL, 1983 EPA EMSL, 1980 EPA EMSL, 1980 EPA EMSL, 1980 EPA, 1986 EPA, 1986 EPA, 1986 EPA, 1986 EPA, 1986 EPA, 1986 EPA, 1986 EPA, 1986 EPA, 1986 EPA, 1986 EPA, 1986 EPA, 1986 EPA,1986 .

first Quarter 1995

WSRC7R-9501434 Uncl-ed

EPA9012 Cyanide EPA, 1986 EPA9020 Total organic halogens EPA, 1986

EPA, 1986 EPA, 1986 EPA9030 Sulfide

EPA9060 EPA, 1986

- EPA9020A Total organic halogens

Dissolved organic carbon, total inorganic carbon, total organic carbon .

An example of available method-specific W Q C information is that for the analysis of metals by EPA Method 601 0/200.7 (EPA, 1986EPA EMSL, 1983). The primary laboratories, General Engineering Laboratories (GE) and Roy F. Weston, Inc. (Weston), use this inductively coupled plasma (ICP) atomic emission spectrometn’c method.

The following precisionanaaccuracy data are based on the experience of seven laboratories that applied the ICP technique to aciddistilled 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 having the lowest values, similar to actual groundwater results for SRS.

ICP Precision and Accuracy Data

.

Mean reported Mean percent Element . True value (uu/Ll value(uq/LJ - RSDa

Aluminum. Arsenic Beryllium . Cadmium Chromium Cobalt ’

Copper Iron Lead Manganese Nickel Selenium Vanadium Zinc

60 22 20 2.5 - 10 20 11 20

15 30 6 70

, -16

I 24

~ 6 2 19 . 20 2 9 10 20 11 ’ 19

- 30 15 28 8.5 69 19

33 23 9.8 16 18 4.1 40 15 32 6.7 11 42 2 9 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 concentration.. Contract laboratories are expected to achieve or at least approach these limits.

,

Accuracy and Precision as Functions of Conce&on for EPA Method 601/8010

Accuracy as Sing1e.analyst Overall Parameter recovery. ~3 CUQ/L~ precision CUU/L~~ precision CUU/L)~

Bromodichloromethane 1.12C1.02d 0.11+0.04e 0.20+1 .oo

6

Bromoform 0.966205 0.12+0.58 0.21+2.41

P-Area AcicUCaustic Basin E-6 First Quarter 1995

Bromomethane Carbon tetrachloride

*Chlorobenzene Chloroethane 2-Chloroethyl vinyl etherf Chloroform Chloromethane Dibrornochlorornethane 1,2-Dichlorobenrene lS3-Dichlorobenzene 1 ,.Q-Dichlorobenzene 1,l-Dichloroethane 1,2-Dichloroethane ~

1 ,l-Dichloroethene trans-1 ,2-Dichloroethene Dichloromethane

(Methylene chloride) 1,2-Dichloropropanef cis-1 ,SDichloropropenef trans-1 ,3-Dichloropropenef 1,1,2,2-TetrachIoroethane Tetrachloroethylene 1 , 1 , 1-Trichloroethane 1,1,2-TrichIoroethane Trichloroethylene Trichlorofluoromethane Vinyl chloride

0.76G1.27 0.9861.04 l . O O G l . 2 3 0.9961.53 1.ooc '

0.9360.39 ' 0.776+0.18 0.94C+272 I 0.93C+1.70 0.95C+0.43 0.9360.09 0.9561.08 1.04Gl.06 0.98 60.87

0.91cO.93 0,9760.16

1.0oc 1.ooc 1.ooc 0.956+0.19 0.94C+0.06 0.9060.16 0.86C+0.30 0.876+0.48 0.89cO.07 0.9760.36

0.28+0.27 0.1S0.38 0.150.02 0.14-0.13 0.20 0.13+0.15 0.28-0.31 0.11+1.10 0.2W0.97 0.14+233 0.1S0.29 0.09+0.17 0.1 1+0.70 0.21-0.23 0.1 1+1.46 0.11+0.33

0.13 0.18 0.18 0.14+241 0.14+0.38 0.15+0.04 0.1 3-0.14 0.13-0.03 0.1 5+0.67 ' 0.13+0.65

0.36+0.94 0.20+0.39 0.18+1.21 0.17+0.63 0.35 . 0.180.02 0.52+1.31 0.24+1.68 0.13+6.13 0.26+234 0.2W0.41 0.14+O.M 0.15+0.94 0.290.40 0.17+1.46 0.21+1.43

0.23 0.32 0.32 0.23+279 0.1 8+221 0.20+0.37 0.1 9+0.67 0.23+0.30 0.26+0.91 0.27+0.40

a X = expected recovery for one or more measurements of a sample containing a concentration of C, i n w

b Expected single analyst standard deviation of measurements. Expected interlaboratory standard deviation of measurements.

d c = true value for the concentration, in p g ~ e = average recovery found for measurements of samples containing a concentration

of Cy in pgR. f Estimates based on performance of a single laboratory.

References

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

EPA (US. Environmental Protection Agency), 1991. Guide/ines €stabfisbing Test Procedures for fhe Analysis of Po//utanfs, Code of Federal Regulations, T i e 40, Part 136, Appendix A. Washington, DC.

EPA EMSL (U.S. Environmental Protection Agency, Environmental Monitoring and Systems Laboratory), 1980. Prescribed Procedures for Measurement of Radioactiv'rty in Drinking Water, EPA-600/4-80-032. Cincinnati, OH.

EPA EMSL (US. Environmental Protection Agency, Environmental Monitoring and Systems Laboratory), 1983. Methods for Chemical Analysis of Water and Wastes. Cincinnati, OH.

P-Area AciflCaustic Basin E-7 Erst Quarter 1995

EPA EMSL (US. Environmental Protection Agency, Environmental Monitoring and Systems Laboratory), 1991. Test Method, The Determination of Inorganic Anions in Water by Ion Chromatography-Method 300.0. Cincinnati, OH. . -

P-Area AcidCaustic Basin E-8 First Quarter 1995

digital.library.unt.edu/67531/metadc... · wsrgtr-9&0143-1 unclassitled key words aluminum...

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