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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 Level i Ethyl- 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) (pg1L) (uglL) (pg1L) (ug1L) (ug1L) (pg1L) (pg1L) (mg/L) Comments <br /> MW-5 11/5/1990 -- 2545 521 2024 7 500 430 55 760 1,600 — <br /> 2/25/1991 — 2545 429 2116 2 400 160 59 120 96 -- — <br /> 6l27/1991 -- 2545 534 2011 ND<50 67 ND<O 5 ND<O 5 ND<O 5 — -- <br /> 9/25/1991 2545 574 1971 1 800 — 120 39 79 94 -- — <br /> 12/10/1991 2545 510 20 35 720 — 46 34 38 58 — -- <br /> 3/2511992 2545 432 21 13 550 75 033 4 3 2 <br /> _ <br /> 6/25/1992 -- 2545 -- _ -_ _ <br /> 12!811992 - 2545 1162 1383 <br /> 3/10/1993 — 2545 1211 1334 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<0 5 -- — <br /> 6/16l1993 — 2545 1013 1532 73 - 22 21 39 57 -- -- <br /> 10/22/1993 - 2545 499 2046 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 - <br /> 1/24/1994 -- 2545 891 1654 120 — 11 06 26 26 ND<5 0 -- <br /> 6/711994 -- 2545 638 1907 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<5 0 -- <br /> 9/13/1994 -- 2545 599 1946 ND<50 ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND<5 0 — <br /> 1/10/1995 — 2545 43 2110 ND<50 — ND<0 5 ND<O 5 ND<O 5 ND<1 - <br /> 3/23/1995 -- -- -- 620 — 20 2 5 55 53 -- QC-1 <br /> 3/23/1995 — 2545 419 21 26 910 - 23 3 68 65 -- 7 9 <br /> 10/4/1995 -- 2545 541 2004 ND<50 22 ND<O 50 0 69 ND<1 0 78 6 9 <br /> 1/411996 -- 2545 4 62 2083 130 46 11 45 37 87 26 <br /> 3/29/1996 2545 445 2100 490 -- 27 ND<1 20 12 13 27 <br /> 7/1/1996 2545 501 2044 580 -- 35 5 30 13 11 <br /> 37 <br /> 10/15/1996 — 2545 523 2022 380 - 39 1 2 86 124 34 5 5 <br /> 4/16/1997 -- 2545 390 2155 -- - __ __ __ <br /> 10/15/1997 2545 508 2037 <br /> 3/17/1998 2545 470 2075 <br /> 11611999 -- 2545 491 2054 <br /> 1/19/2000 -- 2545 465 2080 <br /> 4/12/2000 -- 2545 560 1985 <br /> 7/22/2000 — 2545 499 2046 <br /> 10/26/2000 -- 25 45 457 2088 <br /> 1/17/2001 -- 2545 515 2030 <br /> 4/12/2001 - 2545 483 1 2062 <br /> 5/23/2001 — 2545 4 85 2060 120 0 653 ND<0 5 ND<0 5 ND<1 5 619 — <br /> Report Date July 13,2004 Page 18 of 25 <br />