Document xz46bpRV58m16VDkq9z3Q7GK6

Aa a - Il yo DuPont Engineering Barley Mill Plaza Bldg. 27 Lancaster Pike & Rte. U ! Wilmington, DE 19805 DuPont Engineering July 31, 2002 tzzz L l> David P. Watkins West Virginia Department of Environmental Protection Division of Water Resources 1201 Greenbrier Street Charleston, West Virginia 25311-1088 cn Public Water Supply Results, West Virginia and Ohio DuPont Washington Works, Washington, WV Dear Mr. Watkins: Attached are the finalized C-8 results for public water supplies sampled along the Ohio River in West Virginia and Ohio. Public water supplies located as far as three and a half miles upstream of the DuPont Washington Works facility and 53 miles downstream were included in the sampling events. Results finalized through February 28, 2002 were provided in the One-Mile Radius Survey and C-8 Sampling Report and Ohio River Public Water Supply Sampling document issued by DuPont in April 2002. Results finalized through May 17, 2002 are presented in Table 1 and Figure 1. Figure 1 shows the locations of the public water supplies sampled along the Ohio River. Table 1 presents the updated C-8 results for each groundwater source at the public water supply sampled. For locations sampled more than once, results are presented with the most recent sampling event listed last. Please contact me at (302) 992-6820 if you have any questions. Sinr.ftreJv Andrew S. Hartten Project Director cc: GIST Members Attachments E : Gu Pen* de Nemours and Company CONTAIN n o o p 000318 EN-398C Rev 3**2000 Parkersburg, WV | Belpre, OH Blennerhassett Island, WV Little Hocking, OH Table 1. Summary of C-8 in Groundwater Public Water Supplies, W est Virginia and Ohio Dupont Washington Works, Washington W V `^ Sample lD & ' AlSample Dat PPSDPT 3/6/2002 PPSDAT 3/6/2002 PPSDAT 4/25/2002 PPSDRANY1 3/6/2002 PPSDRANY1 3/6/2002 PPSDRANY1 4/25/2002 PPSDRANY2 3/6/2002 PPSDRANY3 PPSDRANY4 3/6/2002 3/6/2002 PPSDRANY5 3/6/2002 BELPSDAT 2/7/2002 BELPSDAT 3/25/2002 BELPSDAT 4/23/2002 BELPSDPW1 2/7/2002 BELPSDPW1 3/25/2002 BELPSDPW2 2/7/2002 BELPSDPW2 2/7/2002 BELPSDPW2 3/25/2002 BELPSDPW3 3/25/2002 BELPSDPW3 BELPSDPW4 4/23/2002 2/7/2002 BELPSDPW4 3/25/2002 BELPSDPW4 4/23/2002 BELPSDPW5 2/7/2002 BELPSDPW5 3/25/2002 BELPSDPW5 4/23/2002 BELPSDPW5 4/23/2002 BLENI TWO 2/21/2002 BLENI TW7 2/21/2002 BLENI W19A BLENISLEPS1 2/21/2002 1/30/2002 LHPSD1 12/20/2001 LHPSD1 1/21/2002 LHPSD1 2/22/2002 LHPSD1 3/26/2002 LHPSD1 4/23/2002 LHPSD2 12/20/2001 LHPSD2 12/20/2001 LHPSD2 1/21/2002 LHPSD2 2/22/2002 LHPSD2 2/22/2002 LHPSD2 3/26/2002 LHPSD2 4/23/2002 LHPSD3 12/20/2001 LHPSD3 1/21/2002 LHPSD3 2/22/2002 LHPSD3 3/26/2002 LHPSD3 4/23/2002 NQ (<0.050) NQ (<0.050) NQ (<0.050) 0.0693 0.0686 0.0746 ND (<0.010) ND (<0.010) ND (<0.010) ND (<0.010) 0.0818 0.113 0.12 0.0995 0.13 NQ (<0.050) NQ (0.050) NQ (0.050) 0.141 0.12 0.101 0.133 0.114 0.107 0.103 0.107 0.111 ND (0.010) NQ (0.050) 0.316 0.165 1.82 1.72 2.37 2.99 2.02 3.72 3.52 2.97 2.03 2.07 3.31 3.4 0.844 0.744 0.42 0.827 0.783 Page 1 of 4 Before Treatment Sample After Treatment Sample After Treatment Sample Production Well duplicate Production Well Production Well Production Well Production Well Production Well After Treatment Sample After Treatment Sample After Treatment Sample Production Well Production Well Production Well duplicate Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well duplicate Test well Test well Test well Drinking Supply Well Production Well Production Well Production Well Production Well Production Well Production Well duplicate Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well 000313 Little Hocking, OH (cont.) General Electric, WV Lubeck, WV Table 1. Summary of C-8 in Groundwater Public Water Supplies, W est Virginia and Ohio Dupont Washington Works, Washington W V ^ Sample ID LHPSD5 LHPSD5 LHPSD5 LHPSD5 LHPSD5 LHPSD5 LHPSDEP001 LHPSDEP001 LHPSDEP001 LHPSDTW1 LHPSDTW10 LHPSDTW11 LHPSDTW12 LHPSDTW2 LHPSDTW3 LHPSDTW4 LHPSDTW4 LHPSDTW4 LHPSDTW6 LHPSDTW9 LHTORCHBS BARTLETTCC 339B STA GE WELL 3 GE WELL 3 GE WELL 3 GE WELL 3 LPSDAT LPSDAT LPSDWELLA LPSD WELL A LPSD WELL A LPSD WELL A LPSD WELL B LPSD WELL B LPSD WELL B LPSD WELL C LPSD WELL C LPSD WELL C LPSD WELL C LPSD WELL D LPSD WELL D LPSD WELL D LPSD WELL D LPSD WELL E LPSD WELL E LPSD WELL E LPSD WELLE e-VSample Date fef 12/20/2001 1/21/2002 1/21/2002 2/22/2002 3/26/2002 4/23/2002 1/22/2002 3/26/2002 4/23/2002 1/22/2002 1/21/2002 1/21/2002 1/21/2002 1/22/2002 1/22/2002 1/22/2002 3/26/2002 4/23/2002 1/22/2002 1/22/2002 1/22/2002 1/22/2002 1/22/2002 1/3/2002 1/3/2002 2/21/2002 4/26/2002 3/28/2002 4/26/2002 1/3/2002 2/21/2002 3/28/2002 4/26/2002 2/21/2002 3/28/2002 4/26/2002 1/3/2002 2/21/2002 3/28/2002 4/26/2002 1/3/2002 2/21/2002 3/28/2002 4/26/2002 1/3/2002 2/21/2002 3/28/2002 4/26/2002 Page 2 of 4 ug/l 7.66 6.22 6.14 5.69 6.57 6.11 1.69 2.62 1.93 2.16 1.9 1.41 0.758 0.103 4.48 37.1 33.3 28.7 1.79 0.364 1.85 1.94 1.81 1.78 1.87 1.75 1.84 0.69 0.652 0 764 0.683 0.796 0 938 0.61 0.551 0.532 0.592 0.479 0.491 0.471 0.758 0.725 0.692 0.506 0.332 1 1.09 1.11 C o m m e n t s . -"i Production Well Production Well duplicate Production Well Production Well Production Well Water System Point Water System Point Water System Point Test well Test well Test well Test well Test well Test well Test well Test well Test well Test well Test well Water System Point Water System Point Water System Point Production Well duplicate Production Well Production Well After Treatment Sample After Treatment Sample Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well 000314 Table 1. Summary of C-8 in Groundwater Public W ater Supplies, W est Virginia and Ohio Dupont Washington Works, Washington W V SNMMGRatiMMat? ' Lubeck, WV (cont.) Belleville Hydra Plant, WV Tuppers Plains PSD, OH Ravenswood Municipal, WV Mason County PSD, WV Racine Locks and Dam, WV "*' Sample ID ??Sam ple Dat LPSD WELL F 1/3/2002 LPSD WELL F LPSD WELL F LPSD WELL F LPSD WELL F 2/21/2002 3/28/2002 3/28/2002 4/26/2002 BELLEVILLELD 1/29/2002 TPPSDPT 2/6/2002 TPPSDPT TPPSDAT 3/25/2002 2/6/2002 TPPSDAT 3/25/2002 TPPSDAT TPPSDPW1 TPPSDPW1 4/24/2002 2/6/2002 3/25/2002 TPPSDPW1 TPPSDPW2 TPPSDPW2 4/24/2002 2/6/2002 3/25/2002 TPPSDPW2 TPPSDPW3 4/24/2002 2/6/2002 TPPSDPW3 TPPSDPW4 TPPSDPW4 3/25/2002 2/6/2002 3/25/2002 TPPSDPW5 TPPSDPW5 2/6/2002 3/25/2002 TPPSDPW6 TPPSDPW6 TPPSDPW6 2/6/2002 3/25/2002 4/24/2002 CORASIN COR ASOUT COR BLEND AT 3/27/2002 3/27/2002 3/27/2002 COR WELL1 COR WELL 2 COR WELL3 COR WELL 4 COR WELL 5 3/27/2002 3/27/2002 3/27/2002 3/27/2002 3/27/2002 MASONCPSD1 MASONCPSD1 MASONCPSD1 1/29/2002 3/27/2002 4/25/2002 MASONCPSD2 MASONCPSD2 MASONCPSD2 1/29/2002 3/27/2002 4/25/2002 MASONCPSD3 MASONCPSD3 MASONCPSD3 1/29/2002 3/27/2002 4/25/2002 RACINELD 1/4/2002 ug/l 1.04 0.313 0.358 0.352 0.332 NQ (<0.050) 0.372 0.347 0.361 0.358 0.363 0.726 0.705 0.702 0.417 0.327 0.371 NQ (<0.050) NQ (<0.050) 0.0734 0.07 0.201 0.201 0.649 0.634 0.62 ND (<0.010) NQ (<0.050) ND (<0.010) ND (<0.010) ND (<0.010) ND (<0.010) ND (<0.010) ND (<0.010) NQ (<0.050) NQ (<0.050) NQ (<0.050) 0.0618 0.0838 0.0714 0.0707 0.102 0.063 0.518 Cmmrits'i;Si;^^ Production Well Production Well Production Well duplicate Production Well Miscellaneous Use Before Treatment Sample Before Treatment Sample After Treatment Sample After Treatment Sample After Treatment Sample Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Air Stripper In Air Stripper Out Blend After Treatment Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Production Well Miscellaneous Use Page 3 of 4 000315 Table 1. Summary of C-8 in Groundwater Public W ater Supplies, West Virginia and Ohio Dupont Washington Works, Washington W V Village of Racine, OH New Haven Water Dept., WV Village of Syracuse, OH Village of Pomeroy, OH VORAT VORRV3 VORWELL1 VORWELL2 NHPSDAT NHPSDPW1 NHPSDPW1 VOSAT VOSAT VOS NORTH 2 VOS NORTH 2 VOS SOUTH R3 VOS SOUTH R3 VOPAT VOPAT VOPWELL1 VOPWELL2 VOPWELL2 VOPWELL4 VOPWELL4 SampteDate 3/26/2002 3/26/2002 3/26/2002 3/26/2002 4/10/2002 4/10/2002 4/10/2002 3/29/2002 4/24/2002 3/29/2002 4/24/2002 3/26/2002 4/24/2002 3/26/2002 4/24/2002 4/24/2002 3/26/2002 4/24/2002 3/26/2002 4/24/2002 ND = Not Detected at or above the limit of detection (LOD). The listed LOD is approximate and varies by instrument and over time. NQ = Not Quantifiable. Detected at a level above the LOD and below the limit of quantification (LOQ). All C-8 results are reported in ug/l. Misc. = Miscellaneous water use is not used for drinking. '3 ^ # & (C o m m n ts .1>ij3b ND (<0.010) ND (<0.010) ND (<0.010) ND (<0.010) After Treatment Sample Production Well Production Well Production Well ND (<0.010) NQ (<0.050) NQ (<0.050) After Treatment Sample Production Well duplicate NQ (<0.050) ND (<0.010) NQ (<0.050) 0.491 0.208 ND (<0.010) After Treatment Sample After Treatment Sample Production Well Production Well Production Well Production Well 0.0659 0.0628 ND (<0.010) 0.0689 ND (<0.010) 0.0851 0.0712 After Treatment Sample After Treatment Sample Production Well Production Well Production Well Production Well Production Well Page 4 of 4 000316 000317 000318