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s • • <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former BP Service Station No 11194 <br /> 2375 Tracy Blvd, Tracy, CA <br /> TOC Depth to Water LevelEthyl. Total <br /> Well Date PI Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) WL) (pglL) (pglL) (pgll-) (pg/L) (pg/L) (991L) (mg/L) Comments <br /> MW-3 1/6/1999 — 2521 485 2036 90 — 2 ND<1 0 ND<1 0 ND<1 0 39 — <br /> 9/13/1999 2521 501 2020 ND<250 — ND<5 0 ND<5 0 ND<5 0 ND<5 0 86 — <br /> 1/19/2000 -- 2521 451 2070 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 14 <br /> 4/12/2000 — 2521 529 1992 ND<50 — N0<0 5 ND<0 5 ND<0 5 ND<0 5 30 - <br /> 7/22/2000 — 2521 505 2016 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 12 — <br /> 10/26/2000 -- 2521 460 2061 ND<50 -- ND<0 5 ND<0 5 ND<0 5 N0<0 5 34 -- <br /> 1/17/2001 — 2521 461 2060 ND<50 — ND<0 5 353 0 846 453 471 — <br /> 4/12/2001 -- 2521 475 2046 130 -- 072 ND<0 5 0 503 166 131 -- <br /> 5/23/2001 -- 2521 492 2029 590 — ND<0 5 N0<0 5 ND<0 5 ND<1 5 828 <br /> 7/31/2001 -- 2521 515 2006 1,600 -- ND<0 5 ND<0 5 ND<0 5 ND<1 5 2,350 -- <br /> 10/30/2001 — 2521 522 1999 ND<250 — ND<2 5 ND<2 5 ND<2 5 ND<7 5 485 -- <br /> 1/29/2002 - 2521 405 21 16 170 -- ND<0 5 N0<0 5 ND<0 5 ND<1 0 199 — <br /> 4/30/2002 -- 2521 470 2051 310 -- ND<2 5 ND<2 5 ND<2 5 ND<5 0 207 -- <br /> 7/30/2002 P 2521 4 99 1 2022 ND<50 — 0 991 ND<0 5 ND<0 5 ND<1 0 1,280 — <br /> 10/31/2002 P 2521 491 2030 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 88 — <br /> 01/30/2003 P 2521 473 2048 <50 -- <0 50 <0 50 <0 50 <0 50 15 <br /> 04/30/2003 P 2521 461 2060 <50 -- <0 50 <0 50 <0 50 <0 50 99 -- <br /> 07/3012003 P 2521 513 2008 <50 -- <0 50 <0 50 <0 50 <0 50 29 -- <br /> 10/29/2003 P 2521 505 2016 <50 -- <0 50 <0 50 <0 50 <0 50 51 -- <br /> 01/26/2004 P 2521 456 2065 <50 -- <0 50 <0 50 <0 50 <0 50 15 -- <br /> 04/2712004 P 2521 504 2017 <50 -- <050 1 <0 50 1 <0 50 <0 50 27 .. <br /> MW-4 9/2/1986 -- - -- -- 48,000 -- 3,000 3,200 -- 4,700 -- _ <br /> 2/9/1987 — — - 14,000 — 230 160 — 880 -- -- <br /> 9/21/1987 -- — — 14 000 -- 620 83 — 1 600 -- — <br /> 10/20/1987 — — -- — 4 900 — 50 ND<0 5 -- ND<0 5 — -- <br /> 11/20/1987 -- -- — — 2,500 -- 240 7,300 — 260 -- <br /> 3/13/1988 - 2590 504 2086 -- — -. — <br /> 3/23/1988 — 2590 508 2082 76 — 10 1 6 — 13 -- <br /> 6l7/1988 — 2590 525 2065 — — — -- -- — - — <br /> 10/18/1988 — 2590 555 2035 1 1,100 -- 75 28 13 35 — -- <br /> 2/15/1990 — 2590 490 2100 1,800 -- 370 43 130 98 -- -- <br /> 4/26/1990 — 2590 505 2085 -- -- — — — _ _ — <br /> 7/12/1990 2590 516 2074 3,100 — 510 41 220 320 — -- <br /> Report Date July 13,2004 <br /> Page 15 of 25 <br />