Document 06ZvM4aJzYOxq3kbz98Rbda0n

AR226-2523 % THIRD QUARTER 2003 C-8 SURFACE WATER AND GROUNDWATER MONITORING REPORT FOR WASHINGTON WORKS FACILITY AND LOCAL, LETART AND DRY RUN LANDFILLS WASHINGTON, WV Date: October 2003 Project No. : D6WW7423.01 18983632.00028 18983633.00026 18983634.00026 HI CORPORATE REM EDIATIO N G R O U P An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 ASH026479 EXD779761 E ID 779761 Surface W ater And Groundwater Monitoring Report 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 D r y Run landfill,. >*>********>**************'***************#********>** 7.0 References,.,...,.,............ ............... ........................ ....................... ............................. .8 fable 1.0 Table 1.1A Table 1.1B Table 2.0 Table 2.1A Table 2.1B Table 3.0 Table 3.1A Table 3.1B Table 4.0 Table 4.1A Table 4. IB TABLES Washington Works Facility C*8 in Surface Water - Washington Works Facility C-8 in Groundwater - 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 Groundwater Elevation Data - Dry Run Landfill C-8 in Surface Water - Dry Run Landfill C-8 in Groundwater - Dry Run Landfill Figure 1.0 FIGURES Site Location Map - DuPont Washington Works Facility, Washington, WV 3 00 3 6W -SW M R.doc Oct. 1 4 ,0 3 Wilmington, DE f ASH026480 E ID 779762 E ID 7797 62 Surface W ater And Groundwater Monitoring Report Table of Contents Figure 1,1 Monitoring Well and Surface Water Sample Location Map - DuPont Washington Works Facility, Washington, WV Figure 1.2 Revised - February 2002 Groundwater Elevation Map DuPont Washington Works Facility, Washington, WV Figure 1.3 -8 Concentration Map 3Q03 - Outfalls and Monitoring Wells - DuPont Washington Works Facility, Washington, WV Figure 2.0 Site Location Map - Local landfill, Washington, WV Figure 2.1 Monitoring Well and Surface Water Sample Location Map - Local Landfill, Washington, WV Figure 2 2 A A-Zone Groundwater Elevation Contour Map 3Q03 - Local Landfill, Washington W V ............................................... Figure 2.2B C-Zone Groundwater Elevation Contour Map 3Q03 - Local Landfill, Washington WV Figure 2.3 C-8 Concentration Map 3Q03 - Outfalls and Monitoring Wells - Local Landfill, Washington, WV Figure 3.0 Figure 3.1A Site Location Map - Letart Landfill, Letart, WV Monitoring Well and Surface Water Sample Location Map - Letart Landfill, Letart, WV Figure 3.1B Rt. 33 Stream and Blinker's Run Surface Water Sampling Locations Letart Landfill, Letart, WV Figure 3.2A Figure 3.2B Figure 3.3A D/E-Zone Groundwater Elevation Contour Map 3Q03 - Letart Landfill, Letart, WV F-Zone Groundwater Elevation Contour Map 3Q03 - Letart Landfill, Letart, WV C-8 Concentration Map 3Q03 - Outfalls and Monitoring Wells - Letart Landfill, Letart, WV Figure 3.3B C-8 Concentration Map 3Q03 - Zone F - Letart Landfill, Letart, WV Figure 4.0 Figure 4.1 Site Location Map - Dry Run Monitoring Well and Surface Water Sample Location Map - Dry Run Landfill, Wood County, WV , Figure 4.2A A-Zone Groundwater Elevation Contour Map 3Q03 - Dry Run Landfill, Wood County, WV Figure 4.2B Figure 4.3A B-Zone Groundwater Elevation Contour Map 3QQ3 - Dry Run Landfill, Wood County, WV C-8 Concentration Map 3Q03 - Outfalls - Dry Run Landfill, Wood County, WV Figure 4.3B C-8 Concentration in Groundwater 3Q03 --Bedrock Monitoring WellsDry Run Landfill, Wood County, WV 3Q03 GW -SWMR.doc OcL 1 4 .0 3 Wilmington. D SH026483, Suffece W ater And Groundwater Monitoring Report . Table of Contents Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Appendix H APPENDICES Laboratory Analytical Data Reports - Washington Works Facility Chain-of-Custody Records - Washington Works Facility Laboratory Analytical Data Reports - Local Landfill Chain-of-Custody Records - Local Landfill Laboratory Analytical Data Reports - Letart Landfill Chain-of-Custody Records - Letart Landfill Laboratory Analytical Data Reports - Dry Run Landfill Chain-of-Custody Records - Dry Run Landfill 3Q03 GW-3WMR.doC 06. 1 4 .0 3 Wilmington. DE 3H026482 E ID 7797 64 E D 779764 Surface W ater And Groundwater Monitoring Report Introduction 1.0 IN TR O D U C TIO N A multi-media consent order (Order No. GWR-20Q1-019) was entered into between the West Virginia Department o f Environmental Protection (WVDEP), the West Virginia Department o f Health and Human Resources - Bureau for Public Health (WVDHHRBPH) and DuPont on November 15,2001 (Consent Order). The Consent Order identified a series o f requirements and tasks to be performed by the parties to determine whether there has been an impact on human health and the environment as a result of releases o f ammonium perfluorooctanoate (C-8), 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 (GIST) 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 West Virginia National Pollutant Discharge Elimination System (WV NPDES) permit sampling requirements. In this portion of the Consent Order, specific outfalls and outlets (outfalls) are to be sampled monthly for C-8 by DuPont. . Pursuant to Attachment A of the Consent Order, three tasks were performed by DuPont and evaluated by the GIST, Tasks A, B, and C. Task A: Groundwater Use and Well Survey/Groundwater Monitoring was completed (DuPont, 2002a; 2002b). Task B: Assessment o f Existing Groundwater and Surface Water Monitoring Data included compiling of historical C-8 data, monitoring all wells at the landfills and developing a Groundwater Monitoring Plan (GMP) for the Washington Works facility. The first part of the task, the historical C-8 data compilation report was submitted to die GIST for evaluation (DuPont, 2002c). The second part o f this task, monitoring C-8 in groundwater at the landfills, began in December 2001, and was performed monthly for four months and quarterly thereafter. The third part o f the task, developing a GMP for the Washington Works facility, was submitted to the GIST (DuPont, 2002d). Groundwater sampling at the Washington Works facility began in January 2002, and was conducted monthly for four months and quarterly thereafter. Task C: Plume Identification/Groundwater Assessment was also completed (DuPont, 2003). This report presents the results o f the 3rdquarter (3QQ3) C-8 surface water and groundwater sampling that was performed during July and August 2003 at the Washington Works facility, and the Local, Letart, and Dry Run Landfills. 3Q03 GW.SWMR.dOC Oct. 1 4 .0 3 1 Surface W ater And Groundwater Monitoring Report C-8 Analytical Reporting 2.0 C -8 A N A LYTIC A L R EPO R TIN G The analytical method, method detection limit, and laboratory utilized for C-8 analysis have changed over time. Prior to 1991, DuPont performed C-8 analysis at the DuPont Experimental Station in Wilmington, Delaware. In 1991, when the RCRA Verification Investigation was conducted, the analysis was contracted to the CHaMHill Laboratory in Montgomery, Alabama. Both labs used a Gas Chromatography/Electron Capture Detector (GC-ECD) based analytical method with detection limits for C-8 that ranged from 0.1 to 1.0 ug/1. CH2MHill conducted C-8 analysis for DuPont Into the fall o f 1998 when the laboratory ceased operation. The C-8 analytical work was transferred to Lancaster Laboratories, Lancaster, PA, in March 1999. Lancaster Laboratories continued to conduct C-8 analysis nsjng GC-ECD for DuPont until October 2001, when development and testing was completed on anew analytical method developed by Exygen Research, Inc. (Exygen; located in State College, PA) that utilizes Liquid Chromatography/Tandem Mass Spectrometry' (LC/MS/MS). DuPont adopted the regular use of LC/MS/MS for C-8 analysis in water in November 2001 and Exygen was contracted to perform the analyses for DuPont. Exygen reports C-8 results for the laboratory replicate o f each field sample. These results are evaluated for precision by comparing the field sample result to the corresponding laboratory replicate result. . If both results are less than the practical quantitation limit (PQL), die replicate sample for that analyte is considered to have passed the precision criteria. If one or both results axe 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. O 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, 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 o f two measurements divided by their average. When the precision criteria outlined above are met, Exygen reports the average o f the field sample and lab replicate results reported b y the laboratory. If criteria for precision are exceeded, Exygen reports the higher o f the 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 PC-143 for consistency with historical results. An aliquot o f each field sample is also analyzed as a matrix spike (MS). Results o f the MS analysis are used to assess accuracy. The MS recovery value must fall between 70 to 3Q03 GW -SWMR.doc O et 1 4 ,0 3 Wilmington, DE 2 SH026464 E ID 779766 E ID 779766 Surface W ater And Groundwater Monitoring Report C8 Analytical Reporting 130%, unless the sample concentration is at least four times the amount spiked. The maximum amount used to spike field samples is 500 ug/L. All data packages generated by Exygen are reviewed in-house for compliance with the laboratory Standard Operating Procedures (SOP) and data usability, using the checklist provided in the QAPP. Results of the in-house review indicate that data reported by Exygen have been generated in compliance with the laboratory SOP, with few exceptions as noted in the individual review summaries. All data reported by Exygen have been judged usable for the purposes o f the project. 3Q03 GW-SWMR.doc O a. 14,03 Wilmington, D ASH026485 E ID 779767 E1D 779767 Surface W ater And Groundwater Monitoring Report Washington Works Facility 3.0 W A SH IN G TO N W O R K S FA C IL ITY Figure 1.0 shows the location of the Washington Works facility. On August 15,2003, six outfalls were sampled for C-8 (001,002,003,005,007, and 105). All of these outfalls collect process water and stormwater runoff. No changes to routine sampling protocols or other observations were recorded in the field notes during this sampling event. Monthly sampling of these outfalls is required by the WV NPDES permit No. WV0001279. The locations o f these outfalls are shown in Figure 1.1, Groundwater sampling was attempted at 12 monitoring wells between August 25 and 26, 2003. Monitoring wells N13-MW01 and PO8-MW01 were not sampled during this sampling event because die wells were dry, No other changes to routine sampling protocols or other observations were recorded in the field notes during this sampling event. In addition, groundwater from six production wells was sampled on August 11,2003. Sampling o f these wells was done according to routine sampling protocols. A combined groundwater sample representative of all the wells in the DuPont-Lubeck Well Field, labeled West Wellfild 1, was collected on August 11,2003 and analyzed for C-8. Sampling o f this well field on a monthly basis began in December 2001 and continued through April 2002, and is now sampled quarterly. The locations o f the monitoring and production wells sampled arc shown on Figure 1. . This figure also shows the location o f the DuPont-Lubeck Well Field that was sampled, groundwater elevation map for 3Q03 was not generated because o f the limited data set. However, the groundwater elevation map for February 2002, fire most recent groundwater sampling event where almost all site wells were included, is shown in Figure 1.2. - Table 1,0 summarizes the well construction and groundwater elevation data for the monitoring wells. Table 1.1A and Table 1.IB provide the C-8 analytical results for surface water and groundwater, respectively. For each sampling point listed in the tables, historical data is summarized with the most recent results listed first. Figure 1.3 presents the C-8 concentration map for the outfalls and groundwater wells sampled in 3Q03. Laboratory analytical data reports and the Chain-of-Custody records are included in Appendix A and B, respectively. 3Q03 GW-SWMR-doc OcL 14,03 Wilmington, DE ASH02646 E ID 779768 E ID 779768 Surface W ater And Groundwater Monitoring Report Local Landfill 4,0 LOCAL LA N D FILL Figure 2,0 shows the location o f the Local Landfill. Monthly sampling of four outfalls is required by file WV NPDES permit No. WV0076538, These four outfalls collect stormwater runoff. Outfalls 004(New), 005(01d)/SSl, and 101 were sampled for C-8 on August 13,2003. Sampling was attempted at Outfall 005 (New) on August 13, 2003 but no-flow conditions were observed. No changes to routine sampling protocols or other observations were recorded in the field notes during this sampling event The locations o f these five outfalls are shown in Figure 2.1. On July 21 and 31,2003, nine monitoring wells were sampled following routine campling protocols. Figure 2.1 shows the location of the monitoring wells sampled. fable 2.0 summarizes the well construction and groundwater elevation data for the monitoring wells. Figures 22A and 2.2B present the 3Q03 groundwater elevation maps for the A-Zone aquifer and C-Zone aquifer, respectively. Tables 2.1A and 2.1B present the C-8 analytical results for the 3Q03 surface water and groundwater samples, respectively. For each sampling point listed in the tables, historical data is summarized with the most recent results listed first. Figure 2.3 presents the C-8 concentration map for the outfalls and monitoring wells sampled in July and August. Laboratory analytical data reports and Chain-of-Custody records are provided in Appendices 0 and D, respectively. 3Q03 GW-SWMR.doc Oet 14,03 WBmington. D 5 A SH 026487 E ID 779769 BXD779769 Surface W ater And Groundwater Monitoring Report Letart L an d fill 5,0 LETART LA N D FILL Figure 3.0 presents the Letart Landfill location map. Sampling was attempted on August 13 2003 at Outfall 002. Sampling o f Outfall 002, which contains stormwater runoff, is required by the WV NPDES permit No. WV0076066. The location o f active sampling location Outfall 002, and historic sampling locations Outfall 003, and Cap Runoffare shown in Figure 3.1A. The locations ofRt.33 stream and Blinker's Run (also a histone sampling location) are near the property boundary to the west and are shown in Figure 3.1B. Sampling was attempted at 18 monitoring wells at Letart Landfill between July 22 and 24,2003. Figure 3.1A shows the locations o f the monitoring wells. Changes to routine sampling protocols' w m recordedin theSMiWi8'and"aresinitllSized beldw. Monitoring wells LMW-10, LMW-12, and LMW-14B were dry and could not be sampled. Monitoring wells LMW-3, -3A, and -5A went dry during purging, and samples were collected after the wells had recharged. Monitoring well construction and groundwater elevation data for the 18 monitoring wells are presented in Table 3.0. Figures 3 .2A and 3.2B present the 3Q03 groundwater elevation maps for the D/E-Zone aquifer and the F-Zone aquifer, respectively. The C-8 results for the 3Q03 surface water and groundwater samples are presented in Tables 3.1A and 3. IB, respectively. For each sampling point listed in these tables, historical data is summarized with the most recent results listed first. Figure 3.3A presents a C-8 concentration map for monitoring wells and outfalls for the 3Q03 event. Figure 3.3B provides a C-8 concentration contour map for the F-zone aquifer, the underlying significant aquifer. Appendices E and F present the laboratory analytical data reports and the Chain-of-Custody records, respectively. 3Q03 GW -SWMR.doc O c t 1 4 ,0 3 Wilmington, DE ASHQ26488 E ID 779770 EID 77977 Surface W ater And Groundwater Monitoring Report Dry Run Landfill 6,0 DRY RUN LA N D FILL Figure 4.0 shows the location o f the Dry Run Landfill. Monthly sampling o f Outfalls 001,003, and 004 is required by the WV NPDES permit No. WV0076244. (OutfallOOZ is a required outfall sampling location as stated in WV NPDES permit No, WV0076244. However it was a temporary relocation o f Outfall 001 and no longer exists). Outfall 001 collects stormwater and leachate. Outfalls 003 and 004 collect stormwater only. On August 13,2003, Outfall 001 was sampled. Sampling was also attempted at Outfalls 003 and 004, however no-flow conditions were observed. The locations o f die surface water sampling points are shown in Figure 4,1. On August 20,21, and 22,2003, sampling was attempted at 15 monitoring wells. No changes from routine sampling protocols were identified in the field notes. The locations o f the monitoring wells can be found in Figure 4.1. Table 4.0 summarizes die monitoring well construction and groundwater elevation data for the monitoring wells. Figure 4.2A and 4.2B present the 3Q03 groundwater elevation map for the A-zone aquifer, and B-Zone aquifer, respectively. Tables 4.1A and 4.1B present the C-8 analytical results for the 3Q03 surface water and groundwater samples, respectively. For each sampling point listed in these tables, historical data is summarized with the most recent results listed first. Figure 4.3A presents the C-8 concentration map for surface water for the 3Q03 event. Figure 4.3B provides a C-8 concentration contour map for the bedrock aquifer. Laboratory analytical data reports and Chainmf-Custody records are provided in Appendices G and H, respectively. 3Q03 GW -SW MR.doc OcL 1 4 .0 3 Wilmington, DE A 8H 026489 EXD779771 E ID 779771 Surface W ater And Groundwater Monitoring Report References 7.0 R EFER EN C ES DuPont. 2002a. One-Mile Radius Survey and C-8 Sampling Report and Ohio River Public Water Supply Sampling, DuPont Washington Works (December 2001- Februmy 2002) January 2002. DuPont Corporate Remediation Group and URS Diamond. . DuPont. 2002b. Two-Mile Radius Survey and C-8 Sampling, DuPont Washington Works Fadlity/Local landfill, West Virginia (March-May 2002) August 2002. DuPont Corporate Remediation Group and URS Diamond. DuPont, 2002c. Compilation o fHistorical C-8 Data, DuPont Washington Works Main Plant and Landfills January 2002. DuPont Corporate Remediation Group and URS Diamond. DuPont. 2002d. Proposed Groundwater Monitoring Planfo r Washington Works Facility Plant and Landfills January 2002, DuPont Corporate Remediation Group and URS Diamond, DuPont. 2003. C-8 Data Summary Report, Consent Order GWR-200J-01P, DuPont Washington Works Facility, and Local, Letart, and Dry Run Landfills January 2003, DuPont Corporate Remediation Group and URS Diamond. 3Q03 GW -SW MR.doc O c t 1 4 ,0 3 Wilmington, DE ASH026490 E ID 779772 E ID 779772 TABLES A5B026491 E ID 779773 E ID 779773 a -k iM s a1 J E ID 779774 Table 1.0 Monitoring Well Construction and Groundwater Elevation Data DuPont W ashington W orks Facility W ashington, WV jjeg.y. M oTU aifhgV j N e w W e ll ID A E 11-M W 01 A J 06-M W O 2 A M 07- P W 0l | A 008- P W 01jA X 13- P W 01 D 0844W 01 E 13-M W 01 J K 1S - P W 01 L 04- P W 01 OME lHee vaWsa uteirolilnnIgD(fPt)o in t T W -74 628.94 635.55 336 634.26 331 632.91 335 630,69 TW -M 5 600.67 T W -76 | ' 14(354) G A U B K Y 625.47 623.24 589.75 W(SSIlinoezcltelh De si)a m (Inch et es e ) r S creen L ength (ft) ES clerve ae tnioInn toefrv a l m 69.29 2 0.010 10 569. 65- 559.65 128 96 2 18 0.010 15 20 52255- 507.55 i 55825- 538.26 J a n u a r y 4)2 F e b n u a r y -02 M a r c h -02 A p r il-02 M a y -02 A u g u s t -02 O c t o b e r -02 F e b r u a r y -03 M a y -t>3 A u g u s t-03 567,02 566.02 564.20 565.93 566.54 567.6J -- -- -- -- -- _ 568.52 589.55 566.19 567.22 565.52. 1 567,89 568.02 570.45 * * * * * * * 95 90 18 18 4 20 13 557.91 - 537.91 . * 1k * A A * A * 553. 69- 540.69 /"tlpm lfoSJ _ A * At A * * A 562.73 582.69 562.09 562,51 562,71 564,55 564.24 563,00 563.01 564.69 76.8 2 18 10 10 558. 6 7 - 548.57 561. 29, 561.12 562.04 560.59 580.76 562.23 ' ' 56191 581.29 501.03 562.31 * A * A * * ** * ......... NA j A A * * * u * * * "r j "Groundwater elevations not m easured In production wells. / "W ell w as dny 10 14/2003 1 of 2 T a b le t 0.xJs E ID 779775 | a o w wW ttoo H (0 o-J u -J l. Table 1.0 Monitoring W ell Construction and Groundwater Elevation Data DuPont W ashington W orks Facility W ashington, W V MewWell 10 I M S M itiiJ iH ii M04-MW03'|N13-MW01| P04-MW02 P08-MW01 Q04-MW02 R04-MW02 V05-PW01 Y14-MW01 YM-MW02 Old W ei ID Measuring Point Elevation (ft) Ron's MW-s| TW-83 Ron's MW-4 Ron's MW-1 TW-85 595.44 625.87 592.39 62959 595.76 ' 59452 RANNEY TW-90 632.00 642.25 643.12 i Total Depth (ft) Well Diameter (Indies) Slot Size (inches) 88.5 59.95 27.81 68.3 39.64 27.64 92 2 2 2 2 2 2m 10 0,010 0.010 0.010 90 2 0.010 131.59 2 0.010 Screen Length (ft) Elevation of Screen Interval (ft) 15 521.94506.94 5 570.9256552 -- j j j j M iW M banuary-M --i February-02 March-02 April-02 May-02 August-02 -- 559.92 -- ** -- * -- *# -- ** pctober-02 567.82 Mr jFebniary-03 558.85 ** May-03 590,88 August-03 568.29 10 5 10 10 1 574,58- 565.99- 569.12- I 577,28- 542.00564.58 56059 559.12 53758 | 541.00 llilf l 572.35 ' -- | 560.88 576.61 | * 571.91 ! 560,10 | 573.35 .' 573.13 574.32 ** 560.05 559.45 560.40 559.77 576.39 ! 577.38 576.97 577.10 * * * * 572,69 ** 563.77 575.28 ' * ' '572.11 573,21 5X3.5 573.58 562.09 ** ** Hr 563.06 57458 55954 578,93 56054 577.03 562.73 t 576.03 * * * 10 15 562.25 - 526.53 552.25 511.53 552.78 562.15 W ^M _ -- 58159 56154 561.67 -- -- 563.05 - 562.89 561.75 562.13 560.29 56159 559.22 563.19 561.01 [ 'G roundw ater elevations not m easured in production weBs. **W flw asdry 1W14S003 2of 2 Table 1_Q.xis Tabi 1.1A Summary of Analytical Rsulte; C-8 in Surface Water DuPont W ashington Works Facility W ashington, WV fl I OUTLETODI 8/15/03 7/28/03 6/13/03 32.2 11.7 7.95 5/22/03 ...... 14.9 .... 4/30/03 4.9 I 3/31/03 27/03 ........... 514 18.9 ____ 1/26/03 1 3.5B I ..... 12/W02 : 11/13/02 - 10/18/02 S/24/02 ~ ........ 9.76 17.0 10.5 2.15 ............ 8/27/02" '2.94 7/23/02 ........ 8.63 I 6/25/02 5/20/02 ......... 17.9 224 4/16/02 19.7 ... 3/10/02 " ...... 21.4 I 2/5/02 1/17/02 9.43 10S 12/20/01 ... ... 3.720 I OUTFALL002 i 1 I L 8/15/03 7/28/03 ....... 3.90 5.37 5.48 6/13/03 ! ' 5/22/03 " UJ" 5.11 4.0S I 4/30/03 3/31/03 4.09 4 .11 .. 2/27/03 4.15 m 1/26/03 12/0/02 5.48 2.37 11/13/02 " : 4.75.. ;$\ii 11/13/02 (due) 10/10/02 5.26 349 S/24/02 2.14 4 0/27/D2 8/27/02 fdupl 2.5S _______ 2.51 7/23/02 2.29 I ~ ......6/25/02 .... 6/25/02 Wup) 5/20/02 3.86 ....... 3.81 4.13 4/16/02 2.45 1 3/19/02 2/5/02 : 1/17/02 ._ 54.6885 4.23 12/20/01 1.980 11/28/01* 4.84 I 10/25/01 9/18/01 .............. za 0.118 7/11/1 ......... 0.558 6/14/rii-"" 0.594 I 5/31/01 4/11/01 0.435 1.5 ... 3/21/01 8.54 2/14/01 ...... 1.74 I 10/14/03 T o f.3 . ------ T able 1_1A .doc ASH026494 E D 779776 E1D779776 \ l.t ... Table 1,1A Summary o f Analytical Results; C-8 In Surface W ater DuPont Washington Works Facility Washington, W V OUTLET 003 OUTEAJJ. 005 ;+ *t V '- - . 'r i ilT ^ D u lh W .i.^ 8/15/03 0-352 lim b i 1.1 6/13/03 5/22/03 0.529 : 09 5 /2 2 /0 3 )) 0.498 4/30/03 1.23 3/31/03 0.430 . 2/27/3 1.08 1/20/03 8750 1/26/03 (dup) 0.842 12/9/02 0.680 11/1am? .... - 124 lo/Te/oa _ - ....0.870 9/24/02 0.317 8/27/02 04263 " ...7/23/02 ' ........................ 0.291 6/25/02 0.175 5/2TO02 0.503 ........ 4/16/02 2.76 " 3/10/02 2.91 3/19/02 (dup) 2.81 2/5/02 1.33 1/17/02 0.956 1/17/02 (dup) 3.99 ....... T 2 t /0 -------- 0.713 8/15/03 1317 .. 8/15/03 (dup) 13.5 7/26/03 59.1 6/13/03 247 0/13/03 (dup) 237 6/22/03 15.9 4/30/03 "- S S ` 4/306)3 (dup) 16.7 3/31/03 42.1 3/316)3 (dup) 43.1 ........ 2/27/03 46.4 2/27/03 (dup) 46.2 1/26/03 33.4 12/9/02 .. ................. 6.39 12/8/02 (dup) 6.62 11/13/02 18.1 10/18/02 12.1 8/24/02 4.64 9/24/02 (duo) 5.02 8/27/02 12.4 7/23/02 .................. 19.2 6/25/02 ` 17.9 5/20/02 9B.6 m im 65.7 4/16/82 3.8 ' 3/19/02 .................. 9.26 141.0 1/17/02...... 12/20/01 137.0 31.40 l2/20/01(dup) ................... 35.20 ......11/26/01 915 ... ........ . ....... ... ....... ______ " 10/14/03 2 Of 3 Table 1 1Adoc ASH026495 E ID 779777 E ID 779777 Table 1.1A Summary o f Analytical Results; C-8 in Surface W ater DuPont Washington Works Facility Washington, WV \ V ^ ; { - "' 1**-5 a in p l i4a 'ifT P i.:i ,A'J OUTFAU. 005 (continued) " " 10/25/01 ' 9/10/01 6/30/01 7/11/01 7 Mt -!,<;<C '8 (U H /!if^ A !`v` - 65.7 2.86 2.16 120 ..... e/14/01 5/31/01 7.4 1.43 ........ 4/11/01 4.31 3/21/01 2/14/01 11g993 OUTUET 00T 8/15/03 ......... 7/28/03 6/13/03 5/22/03 " 0.49B 0.973 1.55 0.205 .... 4/30 3/31/03 0.488 0.897 2/27/03 1.1 ...... 1/26/03 ....... 12/9/02 5.77 0.263 11/13/02 &56 10/18/02 .......... 0.251 10/18/02 fdup) 0.200 . 9/24/02 NQ (<0.05) 8/27/02 7/23/02 0.207 0.597 7/23/02 (dup) ............. 0.544 6/25/02 0.284 5/20/02 0.490 4/16/02 ' 3/19/02 2/5/02 0.667 0.483 0.320 2/5/02iduDl 0.339 1/17/02 0.871 12/20/01 ... ............... 1.09 O U TU IT105 8/15/03 ............7/28/03 ........... 3.62 15.7 6/13/03 29.3 5/22/03 44.6 4/30/03 44.9 3/31/03 9325 2/27/03 17.0 1/26/03 ........ 16.9 12/9/02 ............... 6.07 ' ... n /1 3 /0 2 10.5 10/18/02 54.6 .... 9/24/02 3.69 8/27/02 6.73 7/23/02 34.7 6/25/02 3.86 5/20/02 .... 6.27 5/20/02 tdup) 5.16 4/16/02 15.9 " 3/19/02 13.2 2/5/02 14.8 _ _ 112//1270//0Q21 -- 7.53 9.7B Note: Analytical method changed as of N ovem ber2001 (see Section 2,0 fo r details). NQ = Not Q uantifiable. Detected at a concentration above the LOD and below the lim it of quantification (LOQ). 10/14/03 3 of 3 Table 1_1A.doc A SH 026496 B ID 779778 E ID 779778 I n I I I 1 I I 1 'i I I 1 I I I I 1 10/14/03 Table 1.1B Summary o f Analytical Results: c -8 in Groundwater DuPont Washington Works Facility Washington, W V AE11-MWQ1 A306-MW02 AM07-PW01 AQ08-PW01 AX13-PW01 8/26/03 3.85 ` 6/21/03 ' 2JS6 2/25/03 1.37 10/16/02 1.74 9/04/02 1.92 5/23/02 1.25 4/29/02 1.22 mma 2.82 2/22/02 146 1/28/02 1.2 2/2/99 0.69 L 11/10/98 0.41 m sm 6/22/03 0.0821 0.377 0.099 10/10/02 0.133 8/11/03 ' "'"22/............ _ 1.16 E 5t7 3/B/D3 NQ f< 0.05) 10/22/02 0.269 0/26/02 0.33S 5/17/02 0.247 4/16/02 0,159 3/21/02 0.171 2/14/02 ' (X129 1/22/02 0.131 11/20/00 0.24 8/16/00 0.071 J 5/12/99 0,578 2/3/99 0.082 B 11/10/98 1.9 L " 6/19/98 0.4 6/2/87 0.79 4/2/96 0,48 8/11/03 0.602 5/22/03 0.738 3/8/03 0.308 10/22/02 0.415 8/26/ce 0420 6/17/02 ....................... 0499 . 4/16/02 " 0.497 3/21/02 0.569 2/14/02 0.439 1/22/02 0.355 11/20/00 04 11/20 UP) 0426 8/16/00 0.167 5/12/99 a i9 ^ 8 - 0.3D7 1 6/2/97 0 . 4/2/90 0.62 6/11/03 1.51 5/22/03 1.97 a/3/03 1,07 10/22/02 0.721 0.834 m in a 0.911 mm2 1.42 m u ta 122 2/14/02 1.03 1 of4 Table 1_1B.doc A SH 026497 E X D 779779 i E ID 779779 I r 1 1 I 1 1 I 1 4 1 I I I I I I 10/14/03 if Table 1.1B Summary of Analytical Results: 0*8 In Groundwater DuPont Washington Works Facility Washington, W V 2 of 4 Table 1 1B.doc A SH 026498 EXD779780 E ID 779780 Table 1.1B Summary of Analytical Results: C-B in Groundwater ' DuPont Washington Works Facility Washington, W V ....... N3-MW01 P04-MW02 PQ6-MW01 Q04-MW02 8/26/03 9 2 2 /0 3 2m m 10/16/02 9/04/02 Drv-no samle Drv-Oq samle Drv-no samle Drv-no samle Drv-no samla 5/23/02 4/29/02 ' ' 3/28/02 2/2902" 2/2/99 11/11/98 8/26/03 9 2 1 /0 3 2m m 10/16/02 10/16/02 (dUD) 9/04/02 9 2 3 /0 2 4/29/02 3/26/02 _________ PfWM sam te-___ _ _ Drv-no samle Drv-no samte 67.8 29.6L <0,1 35100 45800 36800 46800 48300 34400 42400 ._ 36500 32300 2/2902 1/26/02 26800 23600 1/2901 2/8/99 11/12/88 12600 13600 . 8300 8/28/03 5/22m 2m m Drv-no smele Drv-no smele D w samle .......... 10/16/02 9/04/02 .... 5/23/02 ~ 4/29/02 3/28/02 120 Drv-no samle Drv-no samle Drv-no samle Pumo problsms-oosamle 2 /2 9 0 2 20.7 2/4/99 11/13/98 43.4 36 8/28/03 5/21/03 2/26/03 10/16/02 9/04/02 5/23/02 _________ - r e ............ .......... ....... .. 631 566 . ......7720 ' " 32.2 ~ 1480 4/29/02 3/26/02 " 1210........................ 2070 2/2902 1590 1/28/02 2/4/99 11/13/98 ....... 1480 994 660 10/14/03 3 of 4 Table 1 1B.doc j^SH 026499 EXD779781 E ID 779781 I r I I I I 1 1 1 II 4 I I I I I I l Table 1.1B Summary of Analytical Results: C-8 In Groundwater DuPont W ashington Works Facility W ashington, WV f 'll* " '? R04-MW02 V05-PW01 Y14-MW01 Y1444WQ2 West Well Field (1) .f^ ,O a t.^ ; ^ , 0 2 6 /0 3 66700 8/26/03 (dup) 70000 5/21/03 2/26/03 67500 322000 2/26/03 (duel ......... 289000 10/16/02 64100 ' 9/04/02 6650 5/23/02 68100 4/20/02 ...... 56300 3/26/02 54400 litis mm2 436 47500 1/25/01 ....... 2/6/99 ......... 13800 9420 11/12/9B 1300 8/11/03 36,3 - 5/22/03 51.1 3/10/03 . 42.5 ...... 10/26/02 8/13/02 51.2 34 8 5/21/02 35.8 ~ 4/18/02 37.6 3/21/02 40.9 ..... 2/7/02 1/15/02 25.10 29.0 7/11/01 4/11411 11/20/00 .....11-4 ....... 5.46 13.7 2/7/99 12.4 2/7/99 (duo) ............ 3.95 11/18/98 ".......... 1 0.66 L 8/26/03 5/22/03 16.7 21.6 2/25/03- 15.7 10/16/02 _ 16.2 9/04/02 ia .4 5/23/02 4/29/02 15.3 13.9 3/28/02 15.5 2/22/02 10.9 1/28/02 2/2/99 12.7 4.95 L .... 11/10/98 .............. 12 0/25/03 5/22/03 NQ 0.051 0.0506 ......... 2/26/03 N Q (< 0.05) " 10/16/02 NQ (< 0.05) 8/11/03 6/23/03 7.14 8.37 3/10/03 7.12 10/25/02 10,3 /13/02 6.41 5/21/02 7.09 4/16/02 ....... 6.69 3/214)2 7.72 ~ 2/7/02 5.77 1/154)2 6.52 7/11/01 2.31 ' 4/11411 1.58 L - possible low bias result (relative to q a/QC) B= compound detected In QC blank ._ Note: Analytical method changed as of November 2001 (see Section 0 for details). ... .. . ........... 10/14/03 4 of 4 Table 1_1B.doc; A3H26500 E ID 779782 EID 779782 iji I i I, ! i A SH 026501 i CO w *4 C1O0 iI T a b le 2 .0 Monitoring Well Construction and Groundwater Elevation Date Local Landfill Washington, WV P aram eters Measuring Point Elevation (feet) 1 LLMW-4 847.55 if ill LLMW-8 LLWW-9 LUWW-fO | LLMW-12B LLBW-11A j ULMW-13B LLMW-14B LLMW-11B 796.27 708.54 805.94 764.28 663.83 ! 750.80 ' 672.04 665.12 Total Depth (feet) Well Diameter (Inches) Slot Size (inches) 157.10 4 0.020 ' 93.09 4 0.020 Screen Length (feet) 20 Screen Interval > 710.45- (feet) 680.45 December-01 January-02 February-02 March-02 May-02 August-02 October-02 March-03 May-03 iAugust-03 692.55 715,39 715.28 715^1 714.93 715.52 715.53 [ 715.52 715,28 j . 715.35 20 723.18703.18 dH-- i 719.69 720.41 719.70 722.00 721.52 719.77 719.56 721.95 . 721.02 719.80 81.39 4 87.75 4 94.94 2 42.37 2 139.87 .................... ,2 57.28 2 0.020 20 ' 727.15707.15 0.020 20 738.19718.19 727.78 720.67 728.06 i 720.51 728.01 ] 720.73 728.12 : 720.90 728.48 | 721.84 728.24 ! 722.97 728.10 723.01 728.30 724.81 728.44 725.12 728.85 725.39 0.010 20 689.34I- 669.34 MM ,, _ 681.93 692.72 694.38 694.96 * 0.010 ' 20 841.46621.46 i 0.010 1 15 825.93. 510.93 ____m__ I s m s m m _m m 640.42 645.69 848.38 649.32 648,29 648.88 648.95 648.90 0.010 15 629.76614.76 ,TM 627.74 628.61 629.99 629.38 115.95 2 0.010 20 569.17 549.17 . 563.90 570.01 573,91 568.71 ` 10/14/2003 1 of 1 Tab3e2 0,xte' Table 2.1A Summary o f Analytical Results: C-8 in Surface Water L o c a lL a n d fill Washington, WV i M i ' * - v iir W w c a OUTFALL 004 (N6W) 8(13/03 10,9 7/24/03 9.75 ........ 6/13/03 - ....... m m .... 13.4 19.3 4/30/03 3/29/03 2/28/03 18.1 15.9 No-flow conditions 1/31/03 12/13/02 11/30/02 No-flow conditions 10.7 No-flow conditions 10/31/02 9/30/02 8/26/02 No-flow conditions . No-flow conditions No-flow conditions . 7/1/02 6/13/02 -------11 11.2 0.29 2 1 /0 2 No-flow condllions 4/29/02 14.5 3/26/02 " 14.6 , OUTFALL 003 (New) 6/13/03 7/24/03 No-flow conditions 7.93 6/13/03 6/21/03 20.9 21.0 4/30/03 - 12.5 3/31/02 2/28/03 1731/03 No-flow conditions No-flow conditions No-flow conditions 12/13/02 11/30/02 9.51 No-flow conditions 11 s I 10/31/02 9/30/02 ... 8/26/02 No-flow conditions No-flow conditions 7/1/02 No-flow conditions 6/13/02 5/21/02 No-flow conditions No-flow conditions 4/29/02 34.3 3/26/02 16.0 OUTFALL 005 (OId)/S51) 8/13/03 7/24/03 6/13/03 " ...... " 35.0 29.5 392 6/21/03 47.9 4/30/03 50.1 3/29/03 44.9 2/28/03 ko-fiow condllions 1/31/03 12/13/02 No-flow conditions 38.1 11/30/02 No-ftow conditions 10/31/02 8/30/02 No-Bow condllions No-flow conditions ..... 8/26/02 No-flow condiiions 7/1/02 32.1 " 6/13/02 ....... 27.3 2 1 /0 2 4/29/02 tfo-flow conditions 40.9 3/26/02 30.0 2/20/02 40.0 10/14/03 1 Of 3 Table 2 1A.doc ASH026502 E ID 779784 E ID 779784 Table 2.1A Summary of Analytical Results: C*8 in Surface W ater Local Landfill Washington, W V ivt* s.irn p jn u 'l^ .ti fi OUTFALL 005 (Old)/SS1) (cent.) OUTLET 101 OUTLET LM1 (LEACHATE) / INLET 002* 1/11/02 12/13/01 8/27/2000 12/10/1090 6/3/1999 0/2/1888 5/29/1007 4/2/1098 2/18/1994 8/13/03 im m 6/13/03 5/21/03 4/30/03 3/28/03 2/26/03 1/29/03 12/16/02 11/19/02 10/31/02 9/30/02 8/28/02 7/1/02 6/13/02 5/21/02 4/29/02 3/25/02 " 2/20/02 1/23/02 12/13/01 9/14/2000 6/3/1999 ...1...... 6/2/1998 6/13/03 5/21/03 4/30/03 12/16/02 11/21/02 i, . if /r - V f 'C B'r u W * : * '-" .-V . 514 No-ftow conditions 13,3 34 8,8 39 41 ....... 39 35 63.3 60.4 69.7 48.4 74.1 45.4 _ - 43.9 - 49.5 76.7 7B.6 115.0 70.3 - 63.0 4380.00 ..- 48/2 36.4 63.10 81.4 82.40 12 15 54 87.9 832 9B.0 . .......- ... 1-7 ............ .. 120C OUTFALL 004 (Old) 6/13/03 5/21/03 4/30/03 3/29/03 2/28/03 i/3 j/0 3 12/13/02 11/30/02 10/31/02 9/30/02 . 8/26/02 7/1/02 6/13/02 5/21/02 4/29/02 14.4 20.2 16.8 14.7 No-flow conditions No-flowconditions 12.5 No-flow condiSons No-flow conditions No-flow conditions Noflow conditions ni 10.0 No-flow conditions 15 10/14/03 2 of 3 Table 2_1Adoe A SH 026503 E ID 779785 E X 0779785 / Table 2.1A Summary o f Analytical Results; 0 8 In E ffa c e W ater Local Landfill Washington, WV tit OUTFALL 004 (Old) (coni) t 3126/02 2/20/02 1/24/02 12/13/01 " ""'9/ZW20D 12/10/1989 6/3/1999 6/2/1998 5/29/1997 ......... 4/2/1996 2/16/1904 ............ 1.54 10.9 11.4 No-flcw conditions 4.73 7.1 3.06 12 13 13 11 *&Active S^mixAfihUill SsiDDliliQLo^t(OI) Note; Analytical method changed as of November 2001 (see Section 2.0 for details). 10/14/03 3 of 3 T able 2_1Adoe ASHO26504 E ID 779786 E ID 779786 I I I I 1 1 1 I 5 )' i I I I I 1 I m 10/14/03 Table 2AB Summary of Analytical Results; 0-8 In Groundwater Local Landfill Washington, W V UM W -4 LJLMW-6 U.M W -9 7/21/03 7/21/03 (duo) 5/13/03 3/4/03 ...... 10/15/02 9/03/02 5/20/02 .... 3/28/02 2/25/02 1/274)2 12/13/01 5/16/2001 ......... 5/11/2000 5/19/1999 5/27/1908 4/11/l(JS8 7/21/03 5/13/03 " 3/4/03 : 10/15/02 10/15/02 <dup) 9/03/02 5/20/02 3/28/02 2/25/02 1/27/02 12/13/01 5/16/2001 5/10/2000 5/19/1099 5/27/1998 4/11/1996 7/21/03 5/13/03 3/4/03 10/15/02 9/03/02 5/20/02 3/26/02 2/25/02 ~ 1/27/02 12/13/01 5/16/2001 5/10/2000 5/20/1999 5/27/1998 4711/1996 '` .... ' ' " ... .. .... ..... __ 72.9 71.6 65.9 52/1 79.6 6345 57.7 47.2 502 58.4 54.60 1.4 10 18.2 ' 26 39 17 2 19.4 16.1 19.9 17.0 13.7 18.6 113 10.1 1Z2 11.90 3 1.42 122 -9 15 0.063 0.0657 NO 0.05) 0.0569 NQ 0.05) NO 0.05) NO 0.05) N Q I[<0-05> N Q I'<0.05) ND 0.01) 0.039 J <0.029 0.046 J 0 .1 0.14 ........... 1 "~ .... 1 of 2 Tabte2_1B .doc 7UBH0265O5 E ID 779787 E ID 779787 Table 2.1 B Summary o f Analytical Results: 0 8 In Groundwater Local Landfill Washington, WV 'Sd.k t '" SWihpl llM W -10 S i' '-* ," -'. LLMW-12B 1" " LLMW-11A LLMW-13B LLMW.14B :TraV>' : ^ je s f f i tS ^ s s s i .i/'C s 'lu t/r tf 4"iV ,/ V ' 7/21/03 5/13/03 5/13/03 ittup) 3/4/03 3/4/03 (dup) 10/15/02 9/03/02 5/20/02 3/28/02 2/26/02 1/27/02 12/13/01 5/20/1999 5/28/1998 0.253 0.302 0.304 0.300 0.318 0.395 0057 0.55 0.698 1.12 0.162 0.133 ..... 0.15 o%2~ " -% ...... ....... 7/31/03 5/14/03 3 0 /0 3 10/8/02 NQ (40.051 .............. 0.OQ39 NQ 0.051 0,0658 .H S M I 7 0 1 /0 3 5/14/03 3/4/03 10/8/02 - 7 0 1 /0 3 5/14/03 3003 100/02 7 0 1 /0 3 ...... 5/14/03 3 0 /0 3 10/9/02 1.67 2.09 2.05 2.22 5.11 6.43 6.38 6.61 0.322 0:646 0.317 0.488 . ' - LLMW.11B 7/31/03 .......... 5/21/03 3/4/03 `10/8/02 NQ 0.051 NQ 0.051 NQ 0.051 NQ.0.051 J* estimated value (below laboratory quantitation limit) ND = N ot Detected Bt o r above the lim it o f detection (LOD) NO= Not Quantifiable. Detected at a concentration above the LOD and below the limit o f quantification (L6Q). . Note: Analytical method changed as ofN ovem ber 2001 (see Section 2.0 for details). 10/14/03 2 of 2 Table 2_1 B.doc ASH0265O6 E ID 779788 E ID 779788 A SH 026507 o jjj w -3 m<o " r A vi Table 3J Monitoring Weil Construction and Groundwater Elevation Data Letart Landfill Letart, W V f f g H I g 31IBS1liiMgniPPPPP Param eters LRSW-1 LMW-7 LMW-8 LMW-3 |LMW-5A | LMW-3A f LMW-4 LMW-5B ^ uaw -12 ' Measuring Point Elevation [feet) Total Depth /feet) Well Diameter (Inches) Slot Size (inches) 768.93 31.50 2 770.24 777.06 36.73 ! 40.60 44 676.47 ' 647.22 I30,61 30.67 24 0.010 674.79 59.59 4 0.010 651.58 28.66 2 646.22 71.56 4 0 .0 742.62 107,52 41 0.010 . Screen Length (feet) Elevation of Screen Interval (feet) 5 742.43 7 3 7 . 10 9 743.51 - 745.46733.51 i 738.46 5 650.86645.86 10 626.55618.55 5 62020 61520 5 627.92 622.92 20 20 594,66- 655.10 574.65 ! 33E.10 December-01 January-02 February-02 March-02 May-02 August-02 October-02 March-03 752.62 752.82 752.65 752.10 75027 751.98 751.02 750.10 May-03 August-03 749.03 748.89 NA = Instrument limitations *Wei! was dry 10/14/2003 749.73 752.25 751.87 751.55 751.16 751.49 751.75 751.72 750/99 751.09 745.04 746.76 ; 745.05 ! 745.24 745.41 744.95 745,43 745.80 748.62 745.11 646.82 648.19 648.07 648.47 646.74 646.53 646.77 * 646.93 648-.05 61922 618.76 618.10 617.61 617.50 6.17.36 617.23 817.51 617.34 617.87 lot 2 617.40 616.76 615.37 614.80 61527 815.54 615.84 616.31 615.49 616.59 628.03 ! 596.31 642,79 i 596.64 639,99 j 593.34 64320 596.86 643.08 593.66 636.02 632.47 59625 596.86' 643.06 597.08 6 .1 0 597.04 641.11 596.77 635.47 * * < ..........-. :I I Tabie 3_0.xls E IP 7 7 9 7 9 0 A i a o M 01 Wo O -4 1 -4 1 O T Table 3.0 M onitoring W eil C onstruction and G ro u n d w ater E levatio n D ata Letart L an d fill Letart, W V m 1 s U B fM B j H j g (U R U S & BBB& Param eters LMW-13A LMW-14A LNIW-2A LMW-6 tMW-10 LMW-11 LMW-13B LMW-14B LMW-9 Measuring Point Elevation {feet) 768125 766.91 780.37 755.99 734.37 77621 765.86 767.10 777.85 Total Depth (feet) Well Diameter (inches) Slot Size (Inches) 152.35 4 0.010 158.72 4 0.010 Screen Length {feet) Elevation of Screen Interval (feet) 20 655.10 635.10 20 628.19 608.19 ! December-01 January-02 February-02 March-02 May-02 August-02 October-02 March-03 May-03 August-03 B B 3B & 621.07 629.81 83036 83032 627.04 628.41 628,37 628.70 NA = in sto m e n t limitations * Well w as dry 182.17 176.43 191.55 166.54 19227 202.00 230.87 4 0.010 30 4 0.010 30 4 0.010 . 20 4 0.010 25 4 L 0,010 20 4 0.010 i 20 ! i 4 0.010 20 I I 628.70 598.70 609.56579.56 562.82 542.82 634.67- 583.59 609.67 ! 573.59 585,10565.10 . 56898-54598! 622.19 62223 622.44 62228 622.44 622.38 62227 82221 622.49 M BBM $ $ $ $ & M M S i NA NA NA '! 58226 543.37 619.58 581.97 543.36 620.70 581.82 543.39 620.99 581.97 543.39 621.28 582.34 582.05 582.73 543,26 ' 543.35 621.52 621.10 621.53 582.27 582.41 543.77 * 621,43 621.79 >| -j 582.86 580.41 579.12 578.58 569.31 569.96 . 568.36 NA 552.12 55196 551.79 551.24 552.51 551.73 553.08 552.06 551.91 | ! 10/14/2003 2 of2 Table 3_0.xls Table 3,1A Summary o f Analytical Results; C-B in Surface W ater Letart lan d fill Letart, W V '"A . ' Siilrtplo 002((LEACHATE BASIN) `-.if ` 8/13/03 7/30/03 6/13/03 -"l"'-' 1 iS -ii'c - ( u /i / i ) 'u . `i<-f > i867 N oflow Conditions . Not Sampled1 5/23/03 Not Sampled^ 4/30/03 Mol Sampled* 3/23/03 sim a 1/24/03 12/30/02 .11/25/02 10/31/02 0/27/02 6/30/02 7/30/02 sum s 6/30/02 4/30/02 SW ISS 2/19/02 1/25/02 12/14/01 11/27/2001 - > 7 2 o /o i: ..... ........7/25/ZQ00 4/3/2000 1/14/2000 ` 10/21/1909 " . Not Sampled* Not Sampled*' Frozen 1170 939 645 4.52 2050 1410 Not Analyzed* 1630 443 131 355 50.1 36.1 53,2 159 1350 1900 920 3240 003 4/30/03 No-Row Condifions 3/31/03 No-Flow Conditions 2/28/03 Not Sampled** 1/31/03 . No-Flow Conditions ' 12/30/02 No-Flow Conditions 11/30/02 No-Row Conditions 10/31/02 N oflow Conditions 9/27/02 0.170 8/30/02 No-Flow Conditions 7/30/02 No-Flow Conditions . 6/2B/02 NotAnalyzed* 5/30/02 0.282 4/30/02 0.0653 ~ 3/28/02 " : 0.198 2/1 9 *2 No*Flow Conditions 1/25/02 0.148 12/14/01 53e5 1 10/14/03 1 of 2 Table 3,,1A.doc ASHO26509 E ID 779791 E ID 779791 Table 3.1A Summary of Analytical Results: C-8 in Surface W ater Letart Landfill Letart, W V '& < > ;/ -v,,iSnniploUrJt'1RT 33 STREAM BRINKER`5 RUN CAP RUNOFF *W _ 3/23/03 10/31/02 9/27/02 8/30)02 5/30/02 4/30/02 3/28/02 2/19/02 1/25/02 7/20/2001 7/31/2000 7/20/1999 7/23/1997 4/17/1996 ........ 6/21/03 3/13/03 10/14/02 4/30/03 3/28/03 2/28/03 . 1/24/03 12/30/02 11/25/02 10/31/02 9/27/02 8/30/02 8/28/02 5/30/02 4/30/02 3/28/02 2/19/02 1/25/02 ' __ 2.27 2.83 254 No-Flow Condifitws 1.570 0.845 T i e ' ' 1........ .... 3.92 1.9 2.01 0.573 253 2 I jB 0.442 0.247 0.0612 NotSampled* 1 Not Sampled1 Not Sampled" Frozen . 415 -IK T ! 102 50.9 No-Fk>w Conditions NotAnalyzed* 371 279 N otsem eled No-Flow CondlSons ................ 110 " Note; Analytical method changed a s of November2001 (see Section 2.0 for details). * Sam ples were taken a t the respective surface water locations. However, due to an error by the courier, the samples arrived a t the lab warm and were not analyzed. **These surface w ater locations were not sampled due to downed trees from an ice storm that prohibited a ccess to the landfill. * This sampling point could not be accessed due to a rock slide lhat had covered the sampling locations. 10/14/03 2 of 2 Table 3_1Adoc A50O2651O E ID 779792 E ID 779792 I Table 3.1B Summary of Analytical Results: r C-8 In Groundwater Letart Landfill, Letart, WV LMW-1 LMW -7 A /> . . W , IK . 7 /2 3 /0 3 5 /2 1 /0 3 3 /1 2 /0 3 1 0 /1 4 /0 2 8 /2 9 /0 2 5 /2 4 /0 2 3129m 2m m 1 /2 6 /0 2 12/10/01 7/19/01 1/31/01 1 0 /4 /0 0 7 /2 4 /0 0 4 /3 /0 0 1/13/00 10/21/99 7 /2 0 /9 9 5/2B/S8 7 /2 3 /9 7 4 /1 7 /9 6 11/22/91 3/22/91 ....... 7 /2 3 /0 3 5 /2 1 /0 3 3 /1 2 /0 3 1 0 /1 4 /0 2 8 /2 7 /0 2 5 /2 4 /0 2 ` 3/20/02 2 /2 4 /0 2 1/26/02 12/10/01 '.... 7/20/01 1/31/01 1 0 /4 /0 0 7 /2 5 /0 0 _ _ 4/3/00 10/20/99 7 /2 0 /9 9 5 /2 6 /9 3 7 /2 3 /9 7 4 /1 7 /9 0 11/22/91 57200 27300 .... 26000 25900 23000 30500 20600 18400 29400 24600 6100 9190 10600 6990 13600 17400 12600 6920 24000 5100 1700 68 ........................... 60 ',. . " - __ 273 385 218 . . 30D 197 567 324 180 498 334 242 249 231 158 211 219 339 7 8 .3 ' 260 S3 16 0.1 ' I I H 10/14/03 1of6 Table 3_1B.doc ASH0265X1 E ID 779793 E ID 779793 I I I I I 1 I I I I I I I I Table 3.1B Summary o f Analytical Results: O B in Groundwater Letart Landfill, Letart, WV f r m z z v b i& M fv i a - *'C t ................ " " ...LM W -8 i's f m -te & m m is i 7123103 5 /2 0 /0 3 1 mmo 10/14/02 ` 8 /2 0 /0 2 5 /2 4 /0 2 " 3/28/02 2 /2 3 /0 2 ........... ......... 1 /2 6 /0 2 12/10/01 7 /1 9 /0 1 1/30/01 - 1 0 /4 /0 0 "T^O TT 4/3 /00 ..........1 /1 3 /0 0 ............10/20/99 7 /2 0 /9 9 .... ........ .............. 5 /2 8 /9 8 7 /2 3 /9 7 4 /1 7 /9 8 - 11/22/91 B lU tl/ir. . ,> /iV 1 . 2780 3100 1720 3480 3100 40 3620 22303330 3240 1120 2650 2300 2160 2180 2100 3260 1790 2700 2000 220 280 ... LM W -3 U M W -5A 7 /2 4 /0 3 5 /2 1 /1 3 /1 1 /0 3 10/11/02 " 8/2G/02 " " 5 /2 4 /0 2 3/27/02 2 /2 4 /0 2 1 /2 9 /0 2 12/13/01 11/22/91 3/22/91 *2060 2030 Dry-no sample NQ {<0.05) Dry-no sample 2270 1760 1920 1700 ' 1620 1000 390 7 /2 4 /0 3 8 /2 1 /0 3 ..................... 473 245 3 /1 1 /0 3 10/11/02 8 /2 6 /0 2 5 /2 1 /0 2 3 /2 7 /0 2 2/23/02 1 /2 6 /0 2 12/11/01 ~ 11/22/91 3/22/91 112 Dry-no sempla " -------------------------W T * 93.6 B2.2 9 9 .3 .............. . ........ 94,4 " 0.8 1.6 1 10/14/03 2 of 6 Table 3_ 1B.doc ASH026512 B ID 779794 E ID 779794 Table 3,1 B Summary of Analytcal Resuits: 0*8 n roundwater Letart Landfill, L etali, WV r / ih v i _ m m m m s A d i. W NBHW ! LMW-3A 7/22/03 146 I 5/19/03 3/11/03 .... ... ' 200 144 10/11/02 204 'f/26/02 Dry-no sampte I : 5/24/02 3/27/02 ~ "W " 132 " 2/23/02 101 1/26/02 98.6 I 12/11/01 ..... ........... 100 : -- - 6 0 _ 3 ........ 7/18/99 11/22/91 350 I ... LMW-4 .... 3/22/91 7/22/03 380 992 5/19/03 ....... 1280 3/11/03 1520 I 10/11/02 8/27/02 2840 1416 . 5/21/02 1690 I 3/27/02 atife " 2620 2250 1/26/02 3060 I ....... 142//31/30/Q01 1/14/00 .......... 1580 272 172 ____ ........ 11/22/01 '"l... 3/28/91 830 690 LMW-5B 7/22/03 7/22/03 (dup) 1800 1940 6/194)3 2010 4 5/19/03 (dup) 3/11/D3 1660 1470 10/11/02 2230 10/11/02 (dup) 2280 I 8/27/02 8/27/02 (dup)* 1480 1340 6 /2 1 /0 ............ 1720 5/21/02 (dup) * 1830 I ... 1810 3/27/02 (dup) ` 1.... 1850 2/23/62 1460 I 2/23/02(dUp) 1/28/02 " ....... ....... 1490 1780 ` 1/26/02 (tup) ~ r 1890 12/11/01 1880 I 7/20/01 ......... 483 I I ,, 10/1^/03 3 of 6 Table3_1B.doc ASH026S13 E ID 779795 E ID 779795 Table 3,1 B Summary of Analytical Results: C-8 in Groundwater Letart Landfill, Letart, WV LMW-5B continued LMW-12 M A /-13A LMW-14A LMW-2A i 'W i\ 7/204)1(dUp) 5 17314)1 ..... 615 10/5/00 1190, J 10/5/00 (dup) 780 7/25/00 ' 900,4 4/3/00 4/3/00 (dup) 1/14/00 10/21/99 10/21/99 (dup) 7/20/99 7/23/97 ....9/2JV04.......... 1100 1020 1030 1750 ....... 1700 445 480 530 3/15/94 1200 11/22/91 380 3/22/91 340 7/24/03 2 0 /0 3 " 3/11/53 ~ Dry-no sample Dry-no sample Dry-no sample 10/10/02 Dry-no sample 7/24/03 5/19/03 3/11/03 177 185 144 W ftw e ' ' ' 510 7/24/03 ................ 766 5 /1 9 4 3/11/03 10/10/02 998 493 ....974' ' ' ........ 7/22/03 5/20/03 3/124)3 10/14/02 8/27/02 5/24/02 3/29/02 2/24/02 '1/26/02 ' 1^/11/01.... 7/194)1 1/30/01 10/5/0D f/2 5 /0 0 4/3/00 1/14/00 10/21/99 7/20/99 5/28/98 ft' ' " C ll (uryi) -i 1020 998 678 031 678 922 717 714 740 830 242 423 248 275 306 453 370 350 990 " 10/14/03 4ofB Table 3 1B.doc ASH026514 EID779796 E ID 779796 Table 3.1B Summary of Analytical Results; C-8 in Groundwater Letart Landfill, Letart, WV LMW-2A (continued) LMW-6 LMW-10 LMW-11 LMWM3B LMW-14B . 7/23/97 4/17/S6 9/20/04 3/16/94 11/22/91 3/22/91 ..... 7/23/03 5/21/03 jra /0 3 10/14/02 8/27/02 5/24/02 3/2W02 2m m 1/264)2 ..... 12/11/01 1/13/00 6/28/98 11/22/91 3/22/91 -7/24/03 6/20/03 3/11/03 10/17/02 8/29/02 5/21/02 3/27/02 2m m 1/26/02 12/13/01 7/22/03 5/20/03 3/12/03 10/14/02 .. 8/27/02 5/21/02 3/29/02 2/24/02 1/26/02 12/11/01 7/24/03 5/19/03 3/11/03 10/10/02 7/24/03 s /ia /0 3 3/12/03 10/10/02 460 460 270 geo ' -- 63 50 9.73 9.53 11.6 15.1 10.5 20,7 14.8 14.0 18,1 15.8 94 30 24 25 Dry-no sample Dry.no sample Dry-no sample Instrumentation probtems-Not sampled Pump problems-Not sampled 0.208 0.136 0.126 0.133 0,134 0.128 0.124 .......... 0.12 a i2i 0.058 0.059 ' 0.119 0.112 0.159 0.128 4.97 -- 0603 ... ..... 0149 0.0956 Dry-no sample 101 " 704 - 105 10/14/03 6 of 6 T a b le 3_1B .do c ASH0265X5 B ID 7 7 9 7 9 7 E ID 779797 Table 3.1 B Summary o f Analytical Results: C-8 in Groundwater Letart Landfill, Letart, WV IM W -9 lo a m 0.803 6/20/03 0.856 3/12/03 .............. 0.62S 10/17/02 ... 0.907 2 9 /0 2 0.479 ......... 5/24/02 0.715 3/27/02 ....... 0.631 2m m 0.617 1/26/02 .............. 0.675 12/10/01 0.845 --------- 10/7/02 -- ......................... 0 2 ............. la.Ill.1..''1..... . J = estim ated value (below laboratory quantitation lim it). N ote; A nalytical m ethod changed as ofN overuber 2001 (see Sectoon 2.0 for details). * A nalytical duplicates' values were previously inadvertently om itted from the tables. j 1 . 10/14/03 6 of 6 Table 3_1B.doc A SH 026516 EXD779798 E ID 779798 Table 4.0 M onitoring W ell Construction and G roundw ater Elevation Data Dry Run Landfill Lubeck, W V P aram eters M easuring Point Elevation (feet) Total d e p th (feet) Well D iam eter (in c h e s) S lo t Size (inches) S creen Length (feet) Elevation o t S creen Interval (feet) Docom ber-01 January-02 F e b ru a ry -0 2 Wlarch-02 May-02 A ugust-02 O ctober-02 Feb/M arch-03 May-03 A ugust-03 w m m m m SB ? A *-.. DRMW-6A DRMW-12A DRMW-12B DRMW-13A PRMW-21A DRMW-16B DRMW-17B DRMW-18B 744.48 11,89 2 0.010 732.41 17.17 4 0.010 5 720.24 716.24 737.81 738.29 738.26 738.7S 73825 735.61 736.92 739.49 739.02 738.11 727.30 728.50 727.99 728.89 728.97 725.51 725.91 728.99 729.21 727.55 732.85 20.24 4 0.010 10 722.61 712,81 728.11 729.14 728.70 729.58 729.67 726.24 726.64 729.71 729.94 728.32 722.57 13.33 707.62 19.79 42 0.010 0.010 5 . 10 714.24 709.24 697.83* 687.83 714.35 716.97 714.16 716.68 716.70 713.62 713.97 717.67 716.69 713.68 703.00 704.97 70443 702.95 702.98 61.61 4 0.010 20 7 5 1 .3 7 731.57 736.49 746.31 747.09 747.48 853.56 127.09 925.87 202.05 44 0 .0 1 0 0.010 20 20 746.47 726.47 7 4 3 .8 2 723.82 V / i ?' 737.19 751.88 754.37 755,64 757.47 755.11 755,22 754.97 10/14/2003 1 Of 2 T a b le 4 _ 0 .x ls A SH 026517 E ID 779799 E ID 779799 1 Table 4.0 M onitoring W ell C onstruction and G roundw ater Elevation Data I Dry Run Landfill Lubeck, W V SAbtye'Ari fe -'z o fie M ' 1 DIM W 19B DKMW-20B DRMW-12^ Param eters ..... DRMW-1S DRMW-21B DRMW-14 I M easuring Point E levation (feet) 881.99 151.76 668.79 136.41 733,1 37.82 722.68 37.54 734.28 48,60 707.87 _ 938.08 177.20 239,91 1 Well D iam eter Inches) .... S lo t Size iincnB&f -- 4 0.010 4 0.010 4 0.010 4 0.010 2 0.010 4 0.010 10 NA I Screen Length 20 20 15 15 20 20 __ NA 1 Elevation o t Screen Interval (feet) 75023 - 762.38 730.23 732.38 't^Kjscsss"AlihlP. 7 1 0 .2 8 695.28 7 0 0 .1 4 685.14 n p sp 7 0 5 ,6 8 685.68 5 5 0 .4 7 530.47 I NA ffi83Smtm,*aM*z D ecem ber-01 January-02 I February-02 M arch-02 May-02 A ugust-02 I October-02 Feb/M arch>03 May-03 A ugust-03_____ _ 750.94 759.93 757.64 757.74 I s s r JH *! ...724.40 725-25 725.40 725.74 725.99 723.65 752.95 757.53 757.75 757.84 723.54 725.87 725.65 725.18 711.81 712.17 711/16 712.21 712.54 710.65 711.65 712.81 712.53 ' 711.45 716.50 716,33 717.02 716.88 713.82 716.02 716.68 716.64 715.81 613.01 613.19 614.06 614.18 ~ 7 g 'o 9 757.99 754.87 755.45 755.12 755.31 755.13 755.33 755.4 755.61 1 I I I I I I I 1Q/14/2003 2 Of 2 Table 4JXxl$ A SH 026518 E ID 779800 i E ID 779800 I I I I I I I I ) i I 1 I 1 I 1 I Table 4,1 A Sum m ary o f A nalytical Results: C-8 in Surface W ater D ry Run Landfill Lubeck, WV - -y ' " --------- ^ o u t LeI ooi .. .......-- OUTLET 003 OUTLET 004 'w r . M u a tm g a m ^ .g T > 8 ,(d g /i). ------ l 38.6 _ . 7/24/03 ......... 39.7 6/13/03 5/19/03 30.8 . 88.8 4m m 131.0 3/28/03 2/26/03 88.5 69.0 1/29/03 12/30/02 .... ..... 88.4 56.9 ........ 11/21/02 10/30/02 64.6 81.7 9/30/02 , ..W i^H W jD ditian.-------- 8/30/02 7 /3 1 /0 2 " 7/1/02 No-flow conditions No-flow conditions No-flow conditions .... 6/28/02 No-flow conditions ........ 5/28/02 4/24/02 30.9 41 _ 3/25/02 ...... 2/25/02 1/28/02 12/12/01 . 71.6 43.9 41.6 No-Odw conditions 10/3/2000 12/29/1909 5/19/1998 " ..... 31.5 66 17 ~ ~ ' 4/9/1996 88 8/13/03 No-flow conditions 7/24/03 27.6 6/13/03 ............. 10.3 5/19/03 4/30/03 3/31/03 2/28/03 No-flow conations No-flow conditions Noflow conditions No-flow conditions " " 1/31/03 No-flow condlfions 12/30/92 11/30/02 10/30/02 9/30/02 B/30/02 No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions 7/1/02 azm i 5/28/02 .... 25.3 No-flow conditions No-Row conditions 4/29/02 20.1 " 3/26/02 6.77 2/25/02 1/28/02 ` 12/72/51 1 No-flow conditions No-flow conditions No-flow conditions 8/13/03 No-flow conditions 7/24/03 6/13/03 0.243 0.461 5/19/03 ...... 0.543 4/30/03 3/31/03 2/28/03 No-flow conditions No-flow conditions . No-flow conditions 1/31/03 12/30/02 No-flow conditions Noflow conditions 11/30/02 10/30/02 No-flow conditions Noflow conditions " 9/30/02 B/30/02 No-flow conditions Noflaw conditions 7/1/02 0.70 I 10/14/03 1 of 3 Table 4_1A.doc ASH026519 E ID 779801 E ID 779801 Table 4.1A Sum m ary o f A nalytical R esults: C-8 in Surface W ater Dry Run L andfill Lubeck, WV 10/14/03 2 Of 3 Table 4 1A.doc A SH 026520 E ID 779802 E ID 779802 T able 4,1A Sum m ary of Analytical Results: C -8 in S urface W ater Dry Run Landfill Lubeck, WV .y.-j W k & W to m & V POND UNDERDRAIN 5/10/03 4B.7 -- 3/28/03 ....." ................. 53,3 10/30/02 38.0 5/28/02 67.4 4/24/02 33.4 3/25/02 66.7 .......... 2/25/02 37.1 1/28/02 293 12/12/01 35.4 N ote: Analytical m ethod changed a s of Novem ber 2001 fse e Section 2.0 for details). 10/14/03 3 Of 3 Table 4_1A.doc A SH 026521 E ID 779803 E ID 779803 I } I I I 1 I I I * I I I I 1 I I 10/14/03 Table 4,1B Summary of Analytical Results: C-S In G roundw ater Dry Run Landfill, Lubeck, WV 1 of 3 Table 4_JB.doc A SH 026522 EXD779804 E ID 779804 Table 4.1B Summary of Analytical Results: -8 In Groundw ater Dry Run Landfill, Lubeek, WV DRMW-13A DRMW-21A DRMW-16B DRMW-17B D RM W -ieB DRMW-190 DRMW-20B DRMW-12 8/20/03 5713/03 2/27/03 10/9/02 B/28/D2 ........ 6/22/02 3/30/02 2/20/02 1/25/02 12/12/01 7/20/00 7/21/99 5/26/98 7/22/97 - 4/10/86 4/10/1995 idup) 8/21/03 5/16/03 2/28/03 10/9/02 " " " " .... ....... 8/22/03 5/18/03 2/28/03 10/8/02 8/21/03 5/15/03 3/3/03 10/8/02 8/21/03 5/15/03 3/3/03 10/7/02 8/21/03 5/15/03 2/28/03 10/7/02 8/22/03 5/15/03 2/28/03 10/8/02 " 4.38 3.23 1.5 ... 6.66 5.14 ..... 2.31 4 3.73 . 5.97 6.4 9.9 0.070 J 8.7 15 ...... 8.2 .. 11 ... ... ~..... 0.157 .... 0 .3 7 0 ______________ ...... 0.138 0/27 v u ii f -a s s a ^ iw i NO 0.06) ........... NQ 0.05) ND 1*0.01) " __MQ 1*0.05) ' NQ 0.06) Not Sampled*** Not Sampled** 0-155 NQ 0.05) NQ 0.05) Not Sampled" N D 0.01) NQ (*0.05) .......... NQ f<0.05) N Q 0.05) ..... NQ (<0.05) NQ 9,05) ND <<0.01) NQ WJ.05) NQ 0.05) 8/20/03 5/13/03 5/13/03 (dup) 2/27/03 ---- 10/9/02 a/28/02 5/22/02 3/30/02 2/20/02 1/25/02 12/12/01 7/19/00 7/21/99 5/26/98 '' 7m m 4/10/96 ..... '` 0.0586 0.0714 0.0787 0.101 0.109 0.0626 O.0B17 0.0929 -- 0.11 0.086 0.16 0.134 : <0.10 1 <0.1 <0.1 . : " ` 10/14/03 2 Of 3 Table 4_1B.doc ASH026523 E X D 77980S E ID 779805 Table 4.1 B Summary pf Analytical Results: 0 8 in Groundwater Dry R un Landfill, Lubeck, WV |S S i6 .*:fb ie # ltt8 *S !*< c -'-r1' H"-'' iH I 1;| " PRMW-13 8/20/03 17.8 5/13/03 2/27/03 22.8 15.0 10/9/02 20.9 8/28/02 13.1 8/28/02 Iduo) * 14,$ 5/22/02...__ 16.9 3/30/02 12.6 2/20/02 11.5 1/25/02 16.5 12/12/01 9.86 7/20/00 9.8 7/21/99 3.6 5/26/98 9.2 7/22/97 7 DRMW-15 8/20/03 ..... 5/14/03 3/3/03 4.77 4,55 4.64 WW" 4.92 0/28/02 3.99 5/22/02 5 5/22/02 (dup) * 4,66 3/30/02 4.91 2/20/02 3.65 1/27/02 4.35 *f 12/12/01 - 4.94 7/20/00 0.763 7/21/99 0J263 ..... DRMW-21B 8/21/03 5/18/03 2/28/03 10/9/02 NQ (0.051 NQ (<0.051 NQ 0.05) NQ (<0.05) DRMW-14 8/20/Q3 5/14/03 . 3/3/03 10/15/02 8/28/02 5/22/02 3/30/02 2/20/02 1/27/02 12/12/01 7/20/00 7/21/99 6/16/98 7/21/97 4/S/B8 NQ 0.05) NQ 03)51 NQ 0.051 NQ 0.051 NQ NQ NQ NQ (1 NQ 0.115 Z5 <0,1 <0.1 <0.1 ND =N ot D etected a t o r above the lim it o f detection (LOD). T ic listed LOD is approxim ate andvaries by instrum ent and over tune. NQ - N ot Q uantifiable. D etected a t a concentration above th e LOD and below the lim it o f quantification (LOQ). ) = estim ated value (below laboratory quantitation lim it). N ote: A nalytical m ethod changed as o fNovem ber 2001 (see Section 2.0 fo r details). * A nalytical duplicates' Values were previously inadvertently om itted from the tables. ** N o sam ples were collected fo r these Wells because snow and ice blocked the way for the truck w ith sam pling equipm ent to gain access. O nly w ater levels w ere taken fo r these w ells. *** Sam ples w ere not collected at DRM W -17B due to inaccessibility o f the welL 10/14/03 3 of 3 Tabie 4_1B.doc ASH026524 E D 779806 E ID 779806 .......... ' ' A SH 026525 E ID 779807 E ID 779807 FIGURES I I i I I I I 1 n * I I I I I 1_____ -------------------- -- --- - jL , _ . XT' SITE LOCATION MAP II A y ? Suosuel-sOUMAADPRATNACKtEENFROMTMELUBECK,WV C-o rp o rabtuePontRAatteniadmncV*eUSIdtjiPwaUertrrniotomnd Group gWoriltmeyingMtoilnl,P.loOzela,wBourofldt1n9g6025? DuPont Washington Works Foctlity Washington, West Virginia tHeIIEMuVt/MMd* [1l1oCtOUsCa.K^MD*O*ULD* MWH POTOB-. - DVDn?4t1M.O01tLet A SH 026526 E D 779808 E ID 779808 r P04-MW A SH 026527 E ID 779809 E ID 779809 E ID 779810 OToJ^WS 'I I I I I l 1 I I 1 I I I a o Ct wH N O CO 4 0100 o I I ro-ww . / / \: N, / v f / LEGEND MONITORING WELL -o s PRODUCTION WELL APPROXIMATE GROUNDWATER FLOW DIRECTION GROUNDWATER ELEVATION CONTOUR CASTWELLFIELD SCALE 700 . 700 REVISED - FEBRUARY 2003 rroundwahr elevation map Coroorote RematiloHon Ciuup 4a. yHJfenrr M lw im JHAntBWftt ----* B<rti^HWPWKT, AiTWfog27 WmEnalwr, Oc'cvor* 1B8QS Dul>a4 Washington W w ta In Ptcn* YtaMnjte, W*t Yfitfrilo <> /tu ASH026529 E ID 779811 E ID 779811 1 T I I I I I I I I I I I I I I SH026530 E ID 779812 E ID 779812 E ID 779813 S Cd SOto3 <a tetoon E ID 779814  ID 779815 EXD77981S 1I ' E ID 779816 wH ao; to tu wA HMW-12B BEDROCKMONITORWELL 1 ,5 4 CONCENTRATIONOF 0 8 (usa) LLM% 11^ I'VERBURDEN MONITORINGWELL OUTLET 004 A ACTIVESURFACEWATERSAMPLE OUTLET 004 A HISTORICSURFACEWATERSAMPLE * ACTIVESEWMNNIJAl SAMPLINGPOINT C orporale Rem ediation Group nMUaac* bttwm. DvFemA antf UKS JX w nm it Qa^eyMISWcioButWing 2? Wm'mglon, Delatore 19805 Local landfill Washington, W auMMM COMKE.SQMS oa/w/aooa `uTcmoush wjhp 7tfACQV nous __  . A' A SH 026535 E ID 779817 EID77917 A SH 026536 E ID 779818 E ID 779818 SH026537 E ID 779819 E ID 779819 ASH026538 E ID 779820 E ID 779820 ASB026539 E D 779821 E ID 779821 A SH 026540 E ID 779822 E ID 779822  SH 026541 E D 779823 E ID 779823 ASH026542 E ID 779824 E ID 779824 EXD779S25 ASH026544 EID 779826 E ID 779826 ASH026545 E ID 779827 E1D779827 CD N OD J CD OD M OD SH026546 .ta g u a ACTIVE SURFACE WATER SAMPLE LOCATION 17.4 CONCENTRATION C -8 (ug/1) HISTORIC SURFACE WATER SAMPLE LOCATION 400 SCALE 400' Corporate Remediation Group <4a M&ane* bttw**n. SxtP m i arut VX8 Diamomi Gert? KGfl PIwo, Sliding 27 KWraington. Pelowofc 13805 c - a IN SURFACE WATER 3Q03 Dry Run LondfRI DuPont Washington Works Lbeck, West Virginia .... g a l SORM9 am "_ ; K,W3t m m IC. M S MPRE 09/M/XO* aru aa O K OBUS , ASH026547 W to J 050 to to "'""i 13 BEOROCK MONITOR 1SEI1 t u CONCENTRATION C -8 (g g /l) -- 5 - - ESTIMATED UNE OF , IS0C0NCENTRAT10N (C -8) SCALE 400 400' Corporate Remedtotton Group An. Atiiamc* i * t tmnb* Poponi e n d VRS Harnend Boris/ m R o20, Building 21 Wlmlngton. fretowore 19305 C -8 IN GROUNDWATER BEDROCK WEHS 5QD5 ... D ry Run Landfill D uPont W ashington Works M* < B /^K 0 9 t t CAVO OCXS ' JUL OKU9H *03*03* '