ARCHIVED REPORTS_XR0008647 CASE 1

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TABLE 1 SUMMARY OF RESULTS OF GROUNDWATER SAMPLING BP OIL COMPANY SERVICE STATION NO 11194 2375 TRACY BOULEVARD TRACY CALIFORNIA AUSTO PROJECT NO 10-O65 WELL DATE OF CASING DEPTH TO PRODUCT GROUNDWATER TPH-G B T E X DO LAB 10 SAMPLING1 ELEVATION(a) WATER THICKNESS ELEVATION (b) (ppb) (ppb) (Ppb) (ppb) (ppb) (ppm) MONITORING (Feet) (Feet) (Feet) (Feel) MW 1 02/09/87 -- — — - ND<50 NDN 5 ND<0 5 — NDA 5 — SUP MW 1 09/21/87 — — - ND<W ND<05 ND<O 5 — ND<O5 -- SUP MW 1 10/20/87 --- — - - ND<50 ND<05 ND<O 5 — ND<O 5 — SUP MW I 11/2M7 — — — ND<50 NDN5 ND<O5 — ND<0 5 — SUP MW 1 0313166 26 88 588 — 2100 — - — — — MW1 03l23" 2686 588 2100 ND<50 ND<05 ND<O5 — ND<05 SUP MW i 06/07/86 26 88 595 - 2093 — MW 1 10/16/68 2688 625 — 2063 ND<% ND<0 5 ND<O 5 ND<O 5 ND<0 5 — SUP MW 1 0211590 2688 595 — 2093 NO<50 NDN3 ND<o3 ND<O 3 NDA3 - SUP MW 1 04Po6W 2686 608 — 2080 MW 1 07/12190 2686 611 — 2077 ND<% ND<03 ND<43 ND<O 3 ND<93 — SUP MW 1 06/27/90 2688 545 — 2143 MW 1 11/02/90 2668 651 — 2037 — — — — — MW 1 11/06/90 2688 653 — 2035 ND<50 ND<O3 N9<03 ND<O 3 ND<O 3 — SUP MW-1 08/25181 2668 575 — 2113 ND<50 1`40<03 ND<0.3 1413A ND<03 SUP MW 1 06/27/91 2688 666 — 2022 ND<50 NDN 5 NDN 5 NDN 5 NDN 5 — CHR MW 1 09125191 2668 704 - 1984 ND<30 NDA 30 ND<0 30 ND<O 30 NDA 30 — SEQ MW i 12/10/91 2668 646 — 2042 ND<W ND<0.30 NDN 30 NDN 30 ND<0 30 — SEQ MW 1 03/2552 2688 595 20 93 NDG3o ND<o 30 ND<0 3o ND<0 30 ND<0 30 -» SEQ MW 0612552 2688 802 — 1886 ND<30 ND<030 NDA 30 ND<O 30 NDN 30 — SEQ MW 1 12/08152 2688 644 - 2044 ND<50 NDN 5 ND<0 5 NDN 5 ND<o 5 „ ANA MW 1 03/10493 25 88 601 - 20 87 ND<50 NDA 5 NDA 5 NDN 5 NDN 5 - PACE MW 1 (c) 0611693 2588 567 — 2121 — MW 1 (c) 10rQ193 2688 649 - 2039 — MW 1 {c) 01/24194 2688 6 38 - 2050 MW 1 06107194 2688 684 — 20 04 ND<50 NDN 5 ND<0 5 NDN 5 NDA 5 34 PACE MW 1 (c) 0911354 2688 713 — 1975 - — — — — MW2 09V02J8B -- — - - ND<50 ND<l ND<l — ND<l — SUP MW 2 02/09/87 — — MW2 09"21187 — — — - ND<W ND<95 NDNS — ND<0Z — SUP MW2 lOr-IW87 — — - — ND<50 ND,<0 5 ND<o 5 — ND<O 5 SUP MW2 llr0187 --- — — — ND<50 NDAS ND<O6 - ND<o 5 — SUP MW2 03113$8 2633 567 --- 2066MW2 03,23% 2633 563 — 2070 ND<50 ND<o 5 ND<O 5 — ND<0 5 SUP MW2 06/07/88 2633 570 — 2063 - — — — —MW2 10/16188 2633 570 — 2063 NOc50 NDN 5 ND<OS ND<0 5 ND<0 5 — SUP MW2 02115/90 2633 535 — 2098 50 43 08 07 16 - SUP MW2 04/26//0 2633 550 — 2083 - — — — — —MW2 07/1290 2633 548 — 20 85 80 04 13 06 15 — SUP MW 2 06127/90 2633 580 - 2053 — — — MW2 11/02/90 2633 585 — 2048 — — — — — - MW2 11/05/90 2633 587 2046 NDc50 ND<O 3 NDA3 ND<0.3 ND<O 3 — SUP MW2 02125/91 2633 534 - 2099 ND<50 NDN 3 NDcO 3 NDA 3 ND<o 3 — SUP MW2 06127!91 2633 607 — 2026 ND<50 ND<0 5 ND<0 5 NDN 5 NDA 5 — CHR MW2 09125191 2633 636 — 1997 NM 30 NM 30 NDA 30 NDA30 NDN 30 - SEQ MW2 12/10/91 2633 568 — 2047 NDA 30 NDA 30 NM 30 ND<0 30 NDA 30 — SEQ MW2 03/25192 2633 542 -- 20 91 240 42 is 060 38 — SEO MW2 06^251/2 2633 733 — 1900 ND<30 NM 30 NDN 30 ND<0.30 ND 0.30 --- SEQ MW2 12/08192 2633 591 2042 61 NDA5 N045 NDN5 NDN5 — ANA MW2 03110193 2633 569 — 2064 220 36 06 57 92 — PACE MW 2 06/169/3 2633 353 22.60 ND<50 NDA 5 ND<0 5 NDA 5 NDN 5 --- PACE MW 2 10"22/93 2633 606 — 2027 460 10 06 14 08 — PACE QC-1 (d) IW"22/93 -- — — --- 460 09 07 14 08 — PACE MW2 01/24/94 2633 563 — 2070 ND<50 ND<O 5 ND<0 5 ND<oS 06 — PACE MW2 OW07194 2633 608 — 2025 ND<50 NDN 5 ND<0 5 ND<0 5 NDN 5 28 PACE MW2 09/13494 2633 636 — 1997 ND<50 NDA 5 ND<0 5 NDN 5 NDN 5 all PACE 11 Nov-94 PAGE 1