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a � � <br /> Table 9 <br /> Groundwater Elevation and Analytical Data <br /> Former BP Retail Site No 11194 <br /> 2375 Tracy Blvd, Tracy, CA <br /> TOC Depth to Water Levei Ethyl- Total <br /> Well Date PI Elevation Water Elevation TPHg ;TPHd Benzene Toluene benzene Xylenes MtBE DONumber Sampled NP (feet msl) (feet bgs) (feet msl) (pglL) /L) (pg1L) (pg1L) (pg/L) (pg1L) <br /> MW-3 10/31/2002 P 25 21 4 91 20 30 ND<50 (pglL) (mglL) Comments <br /> ND<Q 5 ND<Q 5 ND<0 5 ND<0 5 88 <br /> 01/30/2003 P 25 2i 4 73 20 48 <50 -. <Q 50 <Q 50 <0 50 <Q 50 - <br /> 04/30/2003 P 25 21 4 61 20 60 <50 < 15 <br /> 0 50 <Q 5Q <Q 50 <0 50 9 9 <br /> 07/30/2003 P 25 21 513 20 08 <50 -- <0 5D <0 50 <0 50 <Q—50 - <br /> 07/ <br /> 0 _ <br /> 10/29/2003 P 25 21 5 05 20 16 <50 < 2 9 <br /> 0 5Q <0 50 <0 50 <0 50 <br /> 01126/2004 P 2521 4 56 5 1 <br /> 20 65 <50 <0 50 <0 50 <0 50 <0 50 15 – <br /> 04/27/2004 P 2521 5 04 2017 <50 -- <0 50 <0 50 <0 50 <0 50 27 – <br /> 07/30/2004 P 2521 ---- <br /> 528 19 93 <50 <0 50 <0 50 <0 50 <0 50 1 9 – <br /> 10/28/2004 -- 2521 —4-64 20 57 <br /> – ''^ – – -- Sampled Annually 3rd <br /> 01/31/2005 -- 2521 440 2081 <br /> '" – -- Sampled Annually 3rd <br /> 04/29/2005 - 25 21 4 71 20 50 _ _ _ Quarter <br /> – – – -- Sampled Annually 3rd <br /> 07!2912005 P 25 21 5 15 20 06 <50 _. <0 5o <050 < Quarter <br /> 0 50 <0 50 <br /> <0 50 ._ <br /> MW-4 9/2/1986 – – - 48,000 – 3,OD0 3 200 <br /> 2/9/1987 -- _ w 4,700 -- <br /> - 14,000 - 230 160 880 <br /> 9121!1987 - -- – – 14,000 620 83 - _ <br /> 10/20/1987 – __ – 1,600 <br /> -- 4,900 50 ND<0 5 ND<Q 5 <br /> 11/20/1987 -- -- 2,500 - 240 7,300 -. <br /> 3/13/1988 – 25 90 5 04 20 86 – -- 260 .. `- <br /> 3/23/1988 -- 25 90 !TO-8 20 82 76 .- 10 1 6 _ 1 3 <br /> 617!1988 – 25 90 5 25 065 <br /> – <br /> 10/18/1988 -- 2590 555 2035 1,100 75 28 13 35 _ <br /> 2/15/1990 - 2590 4 90 21 00 1,800 -- 370 43 130 g8 _ <br /> 4/26/1990 25 90 5 05 20 85 <br /> 7/12/1990 2590 516 2074 3,100 -- 510 41 220 320 _ <br /> 8!27/199025 90 546 2044 _ - <br /> 11/2/1990 -- 2590 551 2039 <br /> 11l511990 90 ---653 <br /> 20 37 950 330-- 18 52 29 <br /> 2/25/1991 -- 2590 4 73 21 17 370 – 120 3 3 22 13 _ <br /> 6/27/1991 – 25 90 564 2026 11500 -- 130 ND<0 5 21 18 _ r <br /> 9/25/1991 <br /> 2590 _660 19 30 810 -- 70 49 12 110 _ <br /> Report Date October 13, 2005 <br /> Page 17 of 28 <br />