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AR226-2572 ?opy10of20 Laura Walter DECEMBER 2001 GROUNDWATER MONITORING REPORT FOR WASHINGTON WORKS FACILITY AND LOCAL, LBTART AND LETART DRY RUN LANDFILLS Washington, West Virginia Sumy 2002 Project No. D6WW4Z3 Prepared by A CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building27 Wilmington, Delaware 19805 ASH015624 EID193182 ASH015625 EID193183 Copy 10 of 20 Laura Walter DECEMBER 2001 QROUNDWATER MONITORING REPORT FOR WASHINGTON WORKS FACILITY AND LOCAL, LETART AND DRY RUN LANDFILLS WASHINGTON, WV Date: January 2002 Project No.: D6WW7423 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building27 Wilmington, Delaware 19805 ASH015626 EID193184 Sreundwater Monitoring Rtport Table of Contents TABLE OF CONTENTS 1.0 Introduction.......................... 2.0 C-8 Analytical Reporting...., 3.0 Washington Works Facility. 4.0 Local Landfill....................... 5.0 Letart Landfill.................... 6.0 Dry Run Landfill..,...,..,.....,., 7.0 References........................... .....1 ......2 ......3 ......4 ,....,4 ......4 ...,.,4 Table 1.0 Table 2.0 Table 2.1 A Table 2.1 B Table 3.0 Table 3.1A Table 3.1B Table 4.0 Table 4.1A Table 4.1 B TABLES C-8 in Surface Water - Washington Works Facility Monitoring Well Construction and Groundwater Elevation Data - Local Landfill C-8 in Surface Water ~ Local Landfill C-8 in Groundwater - Local Landfill Monitoring Well Construction and Groundwater Elevation Data - Letart Landfill C-8 in Surface Water - Letart Landfill C-8 in Groundwater- Letart Landfill Monitoring Well Construction and Gfoundwater Elevation Data - Dry Run Landfill C-8 in Surface Water - Dry Run Landfill C-8 in Groundwater - Dry Run Landfill Figure 1.0 Figure 1.1 Figure 1.2 Figure 2,0 FIGURES Site Location Map ~ Washington Works Facility Outfall Location Map - Washington Works Facility C-8 Concentration Map December 2001 - Washington Works Facility Surface Water Site Location Map - Local Landfill GMRcev.doc Feb. 4.02 Wi'mlngtofi. 06 ASH015627 EID1&3185 Omuridwatw Monitonng Raport Table of Contents Figure 2.1 Figure 2.2 Figure 2,3 Figure 3.0 Figure 3.1 Figure 3.2 Figure 3.3A Figure 3.3B Figure 4.0 Figure 4.1 Figure 4.2 Figure 4.3 Figure 4,4 ,,, ^ _ ------ Outfall and Monitoring Well Location Map - Local Landfill Groundwater Elevation Map December 2001 - Local Landfill C-8 Concentration Map December 2001 - Local Landfill Outfalls and Monitoring Wells Site Location Map - Letart Landfill Outfall and Monitoring Well Location Map ~ Letart Landfill F-Zone Groundwater Elevation Map November 2001 - Letart Landfill C-8 Concentration Map December 2001 - Letart Landfill Outfalls and Monitoring Wells C-8 Concentration Map December 2001 - Letart Landfill Zone F Site Location Map - Dry Run Outfall and Monitoring Well Location Map - Dry Run Landfill Ground-water Elevation Map December 2001 - Dry Rim Landfill C-8 Concentration Map December 2001 - Dry Run Surface Water C-8 Concentration in Groundwater December 2001 - ---. Monitoring Wells Bt ^ ---- V . - ---- - _ _ Dry Run Bedrock -__..---- APPENDICES Appendix 1,0 Laboratory Analytical Data Reports - Washington Works Facility Appendix t. 1 Chain-of-Custody Records - Washington Works Facility Appendix 2.0 Laboratory Analytical Data Reports - Local Landfill Appendix 2.1 Chain-of-Custody Records ~ Local Landfill Appendix3.0 Laboratory Analytical Data Reports- Letart Landfill Appendix 3.1 Chain-of-Custody Records - Letart Landfill Appendix 4.0 Laboratory Analytical Data Reports- Dry Run Landfill Appendix 4,1 Chain-of-Custody Records - Dry Run Landfill GMRrw.doc Feb. 4.02 Wi'mingttOT. DE ASH015628 EID193186 (Sroundwatw Monitoring Report Introduction 1.0 INTRODUCTION A multi-media Consent Order was entered into between the West Virginia Department of Environmental Protection (WVDEP). the West Virginia Department of Health and Human Resources - Bureau for Public Health (WVDHHR-BPH) and DuPont on November 15,2001 (Order No. GWR.-2001-019), The Consent Order identified a series - of requirements and tasks that need to be performed by the parties (WVDEP, WVDHHRBPH, and DuPont) in order to determine whether there has been any impact on human health and the environment as a result of releases of ammonium perfluorooctanoate (C8), CAS Number 3825-26-1, to the environment from DuPont operations at the Washington Works facility and the associated landfills (Local, Letart and Dry Run). The Consent Order established the C-8 Groundwater Investigation Steering team (OIST) to oversee investigations and activities that will be conducted to assess the presence and extent of C-8 in drinking water, groundwater, and surface water at and around the Washington Works facility and the Local, Letart and Dry Run Landfills. An additional component of the Consent Order relates to the National Pollutant Discharge Elimination System (NPDES) requirements. In this portion of the Consent Order, specific outfalls and outlets (outfalls) to be sampledmonthly for C.8 by DuPont are identified. Pursuant to Attachment A of the Consent Order, three tasks will be performed by DuPont and evaluated by the GIST, Tasks A, B, and C. Task A: Groundwater Use and Well Survey/Groundwater Monitoring is ongoing. Task B: Assessment of Existing Groundwater and Surface Water Monitoring Data includes the compilation of historical C-8 data, monitoring all wells at the landfills and the development of a Groundwater Monitoring Plan (QMP) for the Washington Works facility. The first part of the task, the historical C-8 data compilation report has been submitted to the GIST for evaluation (DuPont, January 2002a). The second part of this task, monitoring C-8 in groundwater at the landfills, began in December 2001 and will be performed monthly for four months and quarterly thereafter. The third part of the task, the proposedGMP for the Washington Works facility, has been submitted to the GIST for evaluation (DuPont, January 2002b) and groundwater sampling on the Washington Works facility will .begin in late January 2002. Groundwater sampling at the Washington Works facility will also be conducted monthly for four months and quarterly (hereafter. Task C: Plume Identification/Groundwater Assessment will be performed on a schedule to be approved by the GIST. This report presents the results of the C-8 sampling that was performed in December 2001. Outfall sampling results are presented for the Washington.Works facility. Groundwater and surface water results are presented for the landfills. Additionally, C-8 results are presented for several surface water samples not required by the Consent Order or the NPDES permits. GMRrev.doc Feb. 4.02 Wllmington, DE ASH015629 EID193187 smundwater Mgteifg Report___________C-8 Analytical Reporting 2.0 C-8 ANALYTICAL REPORTING The analytical method, method detection limit, and laboratory utilized for C-8 analysis has changed over time. Prior to 1991, DuPont performed C*8 analysis at theDuPont Experimental Station in Wilmington, Delaware, to 1991, when the RCRA Verification Investigation was conducted, the analysis was contracted to the CHzMHill Laboratory in Montgomery, Alabama. Both labs used a Gas Chromatography/ElectronCapture Decteclor (GC-ECD) based analytical method with detection limits for C-8 that ranged from 0.1 to 1.0 ug/1. CHiMHill conducted C-8 analysis for DuPont into the fall of 1998 when the laboratory ceased operation. At that time, DuPont had completed one round of analysis for the RCRA Facility Investigation (RFI). The analytical work was transfeired to Lancaster Laboratories, Lancaster, PA, for the RFI second round analysis in February 1999. Lancaster Laboratories continued to conduct C-8 analysis using GC-ECD for DuPont until October 2001, when development and testing was initiated on a new analytical method developed by Exygen Research, Inc. (located in State College, PA) that utilizes Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS). DuPont adopted the use of LC/MS/MS for C-8 analysis in November 2001. Exygen Research Inc. reports C-8 results for the laboratory replicate of each field sample. These results are evaluated for precision by comparingthe field sample result to the corresponding laboratory replicate result. LJ If both results are less than the practical quantitation limit (PQL), the replicate sample for that analyte is considered to have passed the precision criteria. Q If one or both results are between one and five times the PQL, the replicate is considered to have met the precision criteria if the two results differ by less than the PQL. Q If one result is less than the PQL and the other is not, and if the two results differed by a value less than the PQL, the replicate is said to have met the acceptance criteria. 0 Finally, if both results are at least five times the PQL, the replicate is considered to have met the criteria if the relative percent difference (RPD) between the two results is less than or equal to 20%. The RPD is the absolute value of the difference of two measurements divided by their average. When the precision criteria outlined above are met, DuPont reports the average of the field sample and lab replicate results reported by the laboratory. If criteria for precision are exceeded, DuPont reports the higher of Ihe sample and lab replicate results. Finally, when one result (from the sample/lab replicate pair) is above the PQL and one below, the result that is above the PQLs is reported. C-8 results are recorded in the Corporate Environmental Database (CED) and are reported as FC-143 for consistency with historical results. GMRrev.doc Feb. 4, 02 Wilmlngton, DE ASH015630 EID193188 sroundwaief Monitoring Report______________Washington Works Faciltty 3.0 WASHINGTON WORKS FACILITY Figure 1.0 shows the location of the Washington Works facility. On December 20,2001, six outfalls were sampled for C-8 (001,002,003,005,007, and 105). All of these outfalls collect process water and stonnwater nmoff. Sampling of these outfalls is required by the Consent Order and the WV NPDES permit No. WV0001279. The locations of these outfalls are shown in Figure 1.1. Figure 1.2 presents the C-8 concentration map. Table'1,0 provides the C-8 analytical results for the outfalls. For each outfall listed in this table, historical data is summarized with the most recent results listed first. Laboratory analytical data reports are included in Appendix 1.0 and the Chain-of-Custody records are in Appendix 1,1. GMRrev.doc Feb. 4.02 Wilmington, DE ASH015631 EID193189 Sroumlwater MonitoringReport Local Landfill 4.0 LOCAL LANDFILL Figure 2.0 shows the location of the Local Landfill. On December 13,2001, three outfalls (004,005, andl 01) and four wells (LLMW-4, -6, .9, and -10) were sampled for C-8. Sampling of these outfalls is required by the Consent Order and the WV NPDES permit No. WV0076538. The locations of the outfalls and monitoring wells are shown on Figure 2.1. Outfalls 004,005, and 101 collect stormwater runoffand process water. Outfalls 004 and 005 were dry during sampling; therefore, no samples were collected. Table 2,0 summarizes the well screen data and December 2001 youndwater elevations measured for the monitoring wells. Figure 2.2 presents the groundwater elevation map for December 2001. Tables 2.1 A and 2.1B present the C.8 analytical results for the outfalls and the monitoring wells, respectively. These tables include the historic data available for each location sampled. The historical data is presented with the most recent data first. Figure 2.3 is the C-8 concentration map for December 2001. Laboratory analytical data reports and Chain-of-Custody records are provided in Appendices2.0 and 2.1, respectively. GMRrev.doc Feb. 4,02 Wilmlngton. DE ASH01S632 EID193190 Broundwatef MonitoringReport___ Landfill ____________________L&tart 5.0 LETART LANDFILL Figure 3.0 presents the Letart Landfill location map. hi December 2001,13 wells and three outfalls were sampled for C-8. Sampling of outfalls 002 (leachate) and 003 (stonnwater ronofi) are required by the Consent Order and the WV 'NPDES permit No. WV0076066. The Rt. 33 stream $urface water sample is not a required sampling point. The locations of monitoring wells and two of the surface water samples are shown on Figure 3,1. The location of the Rl. 33 stream sample is near the property boundary to the west and is not shown in this Figure. Thirteen monitoring wells at Letart Landfill were sampled on December 10-11,2001. Groundwater elevation and well screen data for the 13 monitoring wells are presented in Table 3.1. Changes to routine sampling protocols were recorded in the field notes and are summarized below. Depth to groundwater was not measured in five wells (LMW-2A, -6, -9, -10, and -11) because of equipment limitations. Because these wells included four of the five wells screened in Zone F, it was not possibleto construct a groundwater elevation contour map for the Zone F. However, the most recent groundwater elevation contour map for the Letart Landfill Zone F aquifer (November 2001) is presentedin Figure 3.2. Monitoring wells LMW-3 and -10 went dry during low-flow purging. Monitoring well LMW-3 was sampled with a bailer after allowing 48 hours for recharge. No field parameters were monitored due to the very slow recharge rate. Only one 500 ml bottle was collected. Monitoring well LMW-10 was purged and sampled three days later. No field parameters were collected due to the very slow recharge rate. Monitoring well LMW-4 went dry after the third round of field parameters was collected. This well was also sampled with a bailer after allowing 48 hours for recharge. Only one 500 ml sample was collected. Dw to the very slow recharge rate at monitoring well LMW-9, the sample bottles were filled without monitoring the field parameters. The C-8 results for the surface water samples and monitoring wells are presented in Tables3.1Aand 3.IB. respectively. Figure 3.3 presents aC-8 concentration map for monitoring wells and outfalls for December 2001. Figure 3.3B provides a C-8 concentration contour map for the F-zone, the underlying significant aquifer. Appendices 3,0 and 3.1 present the laboratory analytical data reports and the Chain-of-Custody records, respectively. GMRrev.doe Feb. 4,02 I Wilmington. DB ASH015633 EID193191 Qroundwater MonitoringRtport Run LandfJI[ ________________________________Pry 6,0 DRY RUN LANDFILL Figure 4.0 shows the location of the Dry Rim Landfill. In December 2001, three outfalls (001,003, and 004) and eight wells were monitored for C-8, (Outfall 002 is a required outfall sampling location as stated in the WV MPDES permit No. WV0076244. However, it was a temporary relocation of outfall 001 and no longer exists). Outfall 001 collects storowater and leachate. Outfalls 003 and 004 collect stonnwater only. Outfalls 001,003, and 004 were dry during field sampling,therefore, no samples were collected, Five additional surface water locations (not required to be sampled by the Consent order or the NPDES permit) were also sampled for C-8. These include Stream Samples #1 and #2, DR Leachate, Pond Underdrain and Property Boundary, The location of the surface water and monitoring wells are shown on Figure 4.1. The Property Boundary sample location is on the western property boundary and is not shown in Ms Figure. Table 4.0 summarizes the well screen data and groundwater elevations for the monitoring wells. Figure 4,2 presents the groundwater elevation map for December 2001. Tables 4.1 A and 4.1B present the C-8 analytical results for the surface water samples and the monitoring wells, respectively. The data in these tables include historic data available for each location sampled. Figure 4.3 presents the C-8 concentration map for surface water in December 2001 and Figure 4.4 presents the C-8 concentrations in bedrock groundwater (December 2001), Laboratory analytical data reports and Chain-of-Cuslody records are provided in Appendices 4.0 and 4.1, respectively. GMRrev.doc Feb. 4,02 Wiimington. DE ASH015634 EID193192 Sroundwater Monitoring Report References 7.0 REFERENCES DuPont. 2002a. Compilation of Historical C-8Data, DuPont Washington Works Main Plant and Landfills January 2002. Corporate Remediation Group DuPont. 2002b. Proposed Groundwater Monitoring Plan for Washington Works Facility Plant and Landfills January 2002. Corporate Remediation Group. GMRrev.doe Feb. 4, 02 WilminBton. DE ASH015635 EID1&3193 - i a- ASH015636 EID193194 TABLES ASH015637 EID193195 Table 1.0 Summary of Analytical Results; C-8 In Surface Water DuPont Washington Works Facility Washington, WV Sample OUTLET 001 OUTFAU. 002 OUTLET 003 OUTFAU. 005 OLTOET 007 OUTLET 105 Date 12/20/01 12/20/01 10/25/01 -8/1.S/Q1 - 7/11/01 6/14/01 5/31/01 4/11/01 3/21/01 2/14/01 12/20/01 12/20/01 12/20/01 (dup) 10/2S/D1 9M9/01 8/30/01 7/11/01 @f14/01 5/31/01 4/11/01 3B1/01 2/14/01 12/20/01 12^0/01 TM,,.-,.TM^l!"g"l, 3.720 1.880 Z.8 0.118 D.65B 0,894 0.436 1.5 8.54 1.74 0.713 31.40 3550 65.7 2,86 2.16 120 7.4 1.43 4.31 1S9 153 1.BB 8.78 Note: Analytical method changed as of November 2001 (eee Section 2,0 for details). 02/04/02 1 of 1 Tablel .0 Summary of Analytical Results.doc ASH015638 EID193196 Monitoring Wells LiMW- 4 LLMW-i6 LLMW- 9 LLMW-i-tO Table 2.0 Monitoring Well Construction Data Local Landfill Washington, WV Surface Elevation (feet) 844.7 793.2 785.54 805.94 Total Depth (feetji 15S 80 80 87 Well Diameter (Inches) A 4 4 4 Slot Size (inches) 0.020 0.02.0 0.020 0.020 Screen Length (feet) 20 20 20 20 Elevation of Screen Interval (feet) 717.2-697.2 723.2-703.2 728.54-708.54 738.94-718.94 Groii Ele (f 69 71 72 72 Table 2.1A Summary of Analytical Results: C-8 in Surface Water Local Landfill Washington, WV Sampli OUTFALL 004 OUTFALL 005 OUTLET 101 Date 12/13/01 9/27/2000 12/10(1899 B/3/1999 S/2/1998 5/29/1997 4/2/1996 2/1B/1964 12/13/01 9/27/2000 12/10/1899 "8/3/1886?" 8/2/1998 5/2B/1997 4/2/1896 2/1S/1994 12/13/01 9/14/2000 8/3/1669 6/2/199B C4(tm No-flow conditions 4.73 7.1 3,08 12 13 13 11 No-flow corn)Hion 13,3 34 8,8 39 41 - 3g 35 82.40 12 15 54 Note: Analytical method changed as ofNovember 2001 (see Section 2.0 for details). 02/04/02 lofl Table2.1A.doc ASH015640 EID193198 Table 2.1B Summary of Analytical Results; C-8 In (Sroundwater Local Landfill Washington, WV Smnult LLMW4 LLMW-6 U-MW-9 LLMW-10 Dafe 12/13/01 8/16/2001 S/11/2DOO 5/19/1 B99 5/2771968 4/11/1 BB6 12/13/01 8/16/2001 5/10/8X10 5/18/1989 5/Z7/1998 4/11/1 B86 12/13/01 5/ie/20(H 5/10/2000 5/20/1M9 5^7/1986 4/11/1SB6 12/13/01 S/ZO/1998 5/26/1998 C^dBfl) 4.60 1.4 10 1B.2 3S 39 11.80 3 1,42 1.32 15 ND 0.039 J <0,029 0.046 J <0.1 0.14 0.133 0.1S 0,22 J-estiinated value (below laboratory quantitation limit) ND=Compoimd not detected Note: Analytical method changed B$ of November 2001 (sec Section 2.0 for details), 02/04/02 lofl Table2.1B.doc ASH015641 EID193199 Table 3.0 Monitoring Well Construction Data Letart Landfill Letart, WV Zone A C D F Monitoring Wells LMW- 1 LMW-7 LMW-8 IMW- 3 LMW- 3A LMW-4 LMW- 5A LMW-2A LMW-SB LMW-6 LMW- 8 LMW- 10 LMW- 11 Surface Elevation (feet) 766.53 770.24 777.06 673.1 672-61 649.17 645.23 778.53 644.39 754-22 774.85 732.37 774.34- Total Depth (feet) 33 35 38.5 30 80.1 28 2a 180.8 72 183 225 189.85 161.5 Well Diameter (inches) 2 4 4 2 4 2 4 4 4 4 4 4 4 Slot Size (inches) 0.010 0.010 0.010 0.010 0.010 0.010 0.010 i 0.010 Screen Length (feet) 5 10 9 5 5 5 10 30 20 30 20 20 25 Elevation of Screen interval (feet) 738-53-733-53 745.24-735.24 748.06-739.06 G50.1-645.1 819.61-614.61 825.17-621.17 627.23-621.23 628.53-598.53 S94.39-574.38 606.22-576.22 572.85-552.85 862.52-542.52 637.8^612.84 Note: Groundwater evelalions were not determined in some welte (MA) because of equipment lirnitatSons- Table 3.1 A Summary of Analytical Results: C-8 in Surface Water Letart Landfill Letart, WV Simple OOZO-EACHATEBASIN) 003 RT 33 STREAM Daf 12/14/01 11/27/2001 7/20/01 7/25/2000 4/3/2000 V14/2000 10/21/1998 12/14/01 7/200001 7/31/2000 7/20/1999 7/23/1887 4/17/1986 &8(u|i/!) 36, 53.2 159 1350 1900 m 3240 0.390 2.01 0.573 2.3 2 i.a Note; Analytical method changed as ofNovember 2001 (see Section 2.0 for details). 02/04/02 1 ofl Table 3.1A.doc ASH015643 EID193201 Table 3.1 B Summary of Analytical Results: C-8 in Groundwater Letart Landfill Lstart, WV Ssouile LMW-2A LMW-5B LMW-6 LMW-9 l.MW-10 LMW-11 IP-Zone Wells Dlle 12/11/01 7/18/2001 1/30/2001 lo/azooo 7/25/2000 4/3/2000 1/14/2000 10/21/1899 7/20/1 ?8 5/ZB/1998 7/23/1BB7 4/17/1698 9/ZO/1B94 3/1S/1BB4 11/221991 3/22/1991 12/11/01 7/20/2001 T/ZO/OKAlp) 1/31/2001 10f 5/2000 10/5/00 (AlOi 7/25/2000 4/3/2000 4/3/00 (dup) 1/14/gOOO 10/21/1999 10/21/SB (dup^ 7/20/1999 7/23/1997 9/20/1984 3/16/i9S4 11/22/1991 3/22/1891 12/11/01 1/13/2000 5/26/1998 11/221991 3C2/1BB1 1Z/10/01 10ff/192 12/13/01 12/11/01 C-8(i>gfl) 830 242 423 24B 275 308 453 370 350 9BO 460 460 270 260 63 50 1B80 483 592 ~ 6W 1180. J 780 BOO.J 1100 1020 - 1030 1TSO 1700 448 480 S30 1200 360 340 15.8 9,4 30 24 25 0.94S ---'-oS------ i - 0.134 0.128 J - estimated value (below laboratory quaniilttlion limit). Noie: Analytical method changed as of November 2001 (see Section 2,0 for details). Simpit LMW-3A D/E-Zone Wtlls | Dale 1Z/11/01 , I 7/19/1999 : 11/22/1991 3^2/1691 C4tril> 100 60.3 350 3BO 02/04/02 lof2 Table3.1B.doc ASH015644 EID193202 Table 3.1 B Summary of Analytical Results (Gon't): C-8 In Groundwatar Letart Landfill Letart, WV D/E-ZoneWelb LMW4 12/13/01 4/3/2000 1/14/2000 1580 272 172'" "- " 11/22/1991 830 3/2a/1S91 660 LMW-SA 12/11/01 11/22/1 BB1 3/22/16B1 84.4 0.6 1.B Note: Analytical method changed as of November 2001 (see Section 2.0 for details) "1"1 - C-ZOM! Wells SBOPit LMW-3 BIt 12/13/01 11/22/1891 3/22/1981 C-(BBfll 1520 1000 3BO Note; Analytical method changedas of November 2001 (see Section 2.0 for details), A-ZoneWdls Sample LMW-1 Ditc 12/10/01 7/18/2001 1/31/2001 , 10/4/2000 7/24/2000 40/2000 1/13/2000 IOei/1999 7/26/1999 S/26/1998 7/23/1997 4/17/18S6 11/22/19B1 c-stasm 24600 6100 9180 10600 6690 13600 17400 12600 6920 - -aow"--" " 5100 1700 8 3/22/1BB1 60 LMW-7 12/10/01 334 7/20/2001 242 1/3ia001 249 10/4COOO 231 7/2S/2000 4/3/2000 1/13/2000 10/20/1999 7/20/1698 5/28/1888 1S8 211 216 338 76.3 260 LMW-8 7/23/1997 4/17/1986 11/22/1BB1 12/10/01 7/1@i2001 S3 15 0.1 3240 1120 1/3072001 10/4/2000 7/24/2000 4/3/2000 1/13/2000 10/20/1 BB9 7/20/1989 5C8i1998 7/23/1997 Z650 2300 21BO 2180 2100 3260 1790 2700 2000 4/17/1996 11/22/1891 2200 280 Note: Analytical method changedas of November 2001 (see Section 2.0 for details). " 02/04/02 2 of 2 Table3.5B.doe ASH015645 EID193203 Table 4.0 Monitoring Well Construction Data Dry Run Landfill Lubeck, WV Monitoring Wells DRMW- 14 DRMW-;13 DRMW- 13A DRMW- 12 DRMW- 12A. DRMW-1.28 DRMW-;8A DRMW-'IS Surface Elevation {feet) 936.14 720.6 720.3 730.5 730.3 730.5 744.93 730.87 Total Depth (feet) 260 35 1,1 35 17 15 12.2 45 Well Diameter (inches j 10 4 4 4 4 4 2 2 Slot Size (inches) NA 0.010 0.010 0.010 0.010 0.010 0.010 Screen Length (feet) NA 15 5 15 5 10 Elevation of Screen Interval (feet) NA ' 700.6-685.6 714.3-709-3 710.5-695.5 718.3-713.3 726.5-716.5 20 705.87-685.B7 Grou Ele (f 75 71 71 72 72 72 73 71 Table 4.1 A Summary of Analytical Results: C-8 in Surface Water Dry Run Landfill Lubeck.WV Samnk ouTLerool OUTLH'003 OUTL6T004 PROPERTY BOUNDARY STREAM SAMPLING P01NW1 STREAM SAMPLING POINTS2 DRLEACHATE POND UNDERDKAiN DlllB 12/12/01 10/3ffi000 12/29/1999 5/1B/1898 4/9/1998 12/12/01 12/12/01 12/12/01 10/3/2000 4/9/19B6 5714/1998 12/29f1@9B 12/12/01 1073ffl000 I2/29/189B 5/18/18BB 12/12/01 100/2000 12ffi1999 5/19/1999 12/12/01 100/2000 12/29/1999 5/19/1888 7/22/1997 12/12/01 M(aafl) 31.8 66 17 86 No-flow conditions No-ltew eandtterB 3.98 10.3 9.9 0.88 39 1,18 0.75B 0.54 1 20.5 27.6 87 4.6 109 2?.4 34 6S 62 35.4 Note; Analytical method changed as ofNownfter 2001 (see Section 2.0 for details). 02/04/02 lofl Table4.1A.doe ASH015647 EID193205 Table 4.18 Summary of Analytical Results: C-8 in Groundwater Dry Run Landfill Lubeck,WV Sample DRMW-12 Bale 1212/01 7/19/2000 7/21/1999 MdBfl) 0-086 0.16 0.134 5/26/1B9B 7/22/1997 4/10/1988 <0.10 " """<o.T <0.1 '"""^ DRMW.12A 12/12/01 7/1B/ZOOD 0,156 ft.128 7/21/1999 0.081 J 5/26/1898 7/22/1897 4/10/199S <0.10 <0,1 <0.1 DRMW-1ZB 12/12/01 7/20/2000 7/21/1998 6/16/1998 0.215 NO (0.029) 5.4 <0.1 DRMW-13 12/12/01 7/20/2000 7/21/1999 5/26/1998 7/22/1997 9,98 9.B 3.6 9.2 7 DRMW-13A 12/12/01 7/20/2000 7/21/1899 5/2S/1998 7/22/1997 4/10/199B 4/10/18S6 (diip) 6.4 9,8 0.070 J 8.7 - -^ 8.2 11 DRMW-14 12/12/01 7/20/2000 7/21/1699 6/16/1998 NQ 0.115 2.5 <;0.1 7/21/1997 <0.1 4/10/1996 <0.1 DRMW-15 12/12W 7/20/2000 7/21/1998 4.94 0.763 0.263 ORMW.6A 12/12/01 1.04 7/20/2000 0.212 7/21/1998 0,096 5/26/199B 7/22/1S97 4/10/199S 0,27 0.38 0,19 ND B Compound not detected. NQ ^ Compound detected t a level between (he limit of detection and Ac limit ofQuantitation. Result is not quantifiable. J = estimated value (below laboratoryquanritation limit). Note: Analytical method changed as of November 2001 (see Section 2.0 for details). 02/04/02 lofl Table4.1B.doc ASH015648 EID193206 ff- E j ASH015649 EID193207 FIOURES ASB015650 EID193209 ASH015651 EID193209 ASH015652 EID193210 ASH015653 EID193211 ASH015654 EID193212 ASH015655 EID193213 ASH015656 EID1&3214 ASH015657 EID193215 ASH015658 EID193216 ASH015659 EID193217 ASB015660 EID193218 ASH015661 EID193219 ASH015662 EID193220 T336Taia eSSSTOHSY ASH015664 EID193222 ASH015665 E1D193223 ASH015666 EID193224 t,