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tel <br /> Groundwater Elevation and Analytical Data <br /> Former BP Retail Site No 11194 <br /> 2375 Tracy Blvd, Tracy, CA <br /> TOC Depth to Water Level Ethyl- Total <br /> Well Date P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg/L) (pg/L) 04L) 04L) (PgIL) (pglL) (44L) (mg1L) Comments <br /> MW-3 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 ND<0 5 34 - <br /> 1/17/2001 2521 461 20 60 ND<50 - ND<0 5 353 0 846 453 471 <br /> 4/12/2001 2521 475 2046 130 072 NM 5 0 503 1 66 131 <br /> 5/23/2001 2521 492 2029 590 ND<0 5 ND<0 5 ND<O 5 ND<1 5 828 <br /> 7/31/2001 2521 515 2006 1,600 - ND<O 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 48 5 - <br /> 1/29/2002 2521 405 21 16 170 ND<0 5 ND<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 499 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 ND4 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 /> 07/30/2003 P 2521 513 2008 <50 <0 50 <0 50 <0 50 <0 50 2 9 <br /> 10/29/2003 P 2521 505 2016 <50 <050 <0 50 <050 <0 50 51 <br /> 01/26/2004 P 2521 456 2065 <50 <050 <0 50 <0 50 <0 50 15 <br /> 04/27/2004 P 2521 504 2017 <50 - <0 50 <0 50 <0 50 <0 50 27 <br /> 07/30/2004 P 2521 528 1993 <50 <0 50 <0 50 <0 50 <0 50 1 9 <br /> 10/28/2004 2521 464 2057 -- - -- - -- - Sampled Annually 3rd <br /> Quarter <br /> 01/31/2005 2521 440 2081 - - - Sampled Annually 3rd <br /> Quarter <br /> 04/29/2005 2521 471 2050 -- - - - - Sampled Annually 3rd <br /> Quarter <br /> 07/29/2005 P 2521 515 2006 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <br /> 10/28/2005 — 2521 490 2031 — — -- — — — — -- Sampled Annually 3rd <br /> Quarter <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 20 86 -- -- -- - - <br /> 3/23/1988 - 2590 508 2082 76 10 16 13 <br /> Report Date December 1,2005 � Page 17 of 29 <br />