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! i i <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No 2130 <br /> 7906 N EL Dorado Street, Stockton, CA <br /> TOC Depth to Water Level Ethyl- Total <br /> WellDate P/ Elevation water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msi) (4rg/L) (pg/L) (pg/L) (pg/L) OWL) (14L) (pg/L) (mg/L) Comments <br /> MW-2 3/22/1993 15 19 6079 -4560 NA NA NA NA NA NA -- No FP, No S <br /> 4/6/1993 1519 60 27 4508 1,000 71 <25 31 88 NA No FP,No S <br /> 7/30/1993 1519 6098 -4579 1200 35 2 6 30 15 NA - No FP,No S <br /> 11/29/1993 1519 60 05 -4486 1,100 28 33 18 45 NA No FP,No S <br /> 3/23/1994 1519 5514 -3995 1,200 14 77 69 52 NA No FP,No S <br /> 6/22/1994 1519 5522 4003 1,200 54 15 13 5 8 NA No FP No S <br /> 9/28/1994 1519 5906 -4387 1,600 370 2 9 47 13 NA No FP, No S <br /> 12/1/1994 1519 5800 -4281 220 21 <05 26 <0 5 NA No FP,No S <br /> 2/28/1995 15 19 5508 -3989 110 <05 <05 <0 5 <0 5 NA No FP,No S <br /> 5/19/1995 15 19 5315 3796 400 23 <0 5 21 <0 5 NA -- No FP,No S <br /> 8/28/1995 1519 5483 3964 650 84 <1* 93 1 1 NA No FP,No S <br /> 12/7/1995 1519 5347 -3828 540 18 <1* 3 <1' NA No FP,No S <br /> 2/5/1996 1519 51 93 -3674 310 2 8 0 6 1 3 0 8 NA - No FP, No S <br /> 5/30/1996 1519 4791 3272 510 31 1 59 1 3 <7** No FP, No S <br /> 9/18/1996 1519 5180 3661 920 150 <2 5* 22 35 <15* No FP No S <br /> 11/26/1996 1519 4960 3441 520 21 <0 5 27 06 7 No FP, No S <br /> 3/24/1997 1519 4450 -2931 <500*** <3** <3** <3** <3" <20** No FP, No S <br /> 5/20/1997 15 19 4509 -2990 720 71 <1* 13 1 1 <6* No FP, No S <br /> 8/19/1997 1519 4869 3350 1 200 240 <5 41 <5 <50** No FP, No S <br /> 1 i/19/1997 - <br /> 1519 4677 -31 58 <50 1 7 0 89 <05 087 <5 <br /> 3/4/1998 1519 4218 -2699 <50 22 <0 5 <0 5 <0 5 51 No FP No S <br /> 6/26/1998 1519 3987 -2468 534 365 <0 5 <0 5 1 12 652 <br /> 9/1/1998 1519 41 61 2642 322 - 484 <0 5 169 1 67 <5 <br /> 12/2/1998 1519 3894 2375 390 <0 5 <0 5 0 735 <0 5 158 <br /> 3/31/1999 1519 3538 -2019 987 66 069 0 579 233 655 <br /> 6/4/1999 15 19 3667 -21 48 184 11 9 <0 5 103 0 669 126 <br /> 9/2/1999 1519 41 23 2604 4,820 - 764 <10 375 <10 191 <br /> 111/2911999 1519 3936 2417 791 425 <0 5 <0 5 114 654 <br /> 3/16/2000 1519 3539 -2020 <50 <05 <0 5 <0 5 <0 5 2 89 <br /> 6/26/2000 1519 3799 -2280 435 33 0 588 122 206 6 3[2] <br /> 9/28/2000 1519 4224 2705 165[3) 658 <0 5 0 618 0 669 3 62[2] <br /> 12/19/2000 15 19 3792 -2273 <50 <0 5 <0 5 <0 5 <0 5 <2 5 <br /> 3/15/2001 1519 3573 -2054 <50 - <2[4] <2(4] <2[4] <2[4] <2[2] <br /> Report Date January 25,2006 Page 6 of 25 <br /> I <br />