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i i • <br /> TABLE 1 <br /> GROUNDWATER MONITORING DATA <br /> ARCO Service Station No 2130 <br /> 7906 North EI Dorado Street, Stockton, California <br /> Elevation Static Water Groundwater Ethyl- Total <br /> Well Top of Casing Top of Screen Level Elevation TPHg Benzene Toluene benzene Xylene MtBE <br /> Number Date feet msl ft btc ft btc feet msl m /L m /L m /L m /L m /L m /L Observations <br /> MW-2 02/28/95 1519 6000 5508 -3989 110 <0 5 <0 5 <0 5 <0 5 NA No FP, No S <br /> 05/19/95 1519 5315 -3796 400 23 <0 5 21 <0 5 NA No FP, No S <br /> 08/28/95 1519 5483 -3964 650 84 <1* 93 1 1 NA No FP, No S <br /> 12/07/95 1519 5347 -3828 540 18 <1* 3 <1* NA No FP, No S <br /> 02/05/96 1519 51 93 -3674 310 28 06 1 3 08 NA No FP, No S <br /> 05/30/96 1519 4791 -3272 510 31 1 0 59 1 3 <7** No FP, No S <br /> 09/18/96 1519 51 80 -3661 920 150 <2 5* 22 35 <15* No FP, No S <br /> 11/26/96 1519 4960 -3441 520 21 <0 5 27 06 7 No FP, No S <br /> 03/24/97 1519 4450 -2931 <500*** <3** <3** <3** <3** <20** No FP, No S <br /> 05/20/97 1519 4509 -2990 720 71 <1* 13 1 1 <6* No FP, No S <br /> 08/19/97 1519 4869 -3350 1,200 240 <5 41 <5 <50** No FP, No S <br /> 11/19/97 1519 4677 -31 58 <50 1 7 089 <0 5 087 <5 No FP, No S <br /> 03/04/98 1519 4218 -2699 <50 22 <0 5 <0 5 <0 5 51 No FP, No S <br /> 06/26/98 1519 3987 -2468 534 365 <0 5 <0 5 1 12 652 No FP, No S <br /> 09/01/98 1519 41 61 -2642 322 484 <0 5 169 1 67 <5 No FP, No S <br /> 12/02/98 1519 3894 -2375 390 <0 5 <0 5 0 735 <0 5 158 No FP, No S <br /> 03/31/99 1519 3538 -2019 987 66 069 0 579 233 655 No FP, No S <br /> 06/04/99 1519 3667 -21 48 184 11 9 <0 5 103 0 669 126 No FP, No S <br /> 09/02/99 1519 41 23 -2604 4,820 764 <10 375 <10 191 No FP, No S <br /> 11/29/99 1519 3936 -2417 791 425 <0 5 <0 5 1 14 654 No FP, No S <br /> 03/16/00 1519 3539 -2020 <50 <0 5 <0 5 <0 5 <0 5 289 No FP, No S <br /> 06/26/00 1519 3799 -2280 435 33 0 588 122 206 6 3[2] No FP, No S <br /> 09/28/00 1519 4224 -2705 165[3] 658 <0 5 0 618 0 669 3 62[2] No FP, No S <br /> 12/19/00 1519 3792 .2273 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP, No S <br /> 03/15/01 1519 3573 -2054 <50 <2 [4] <2 [41 <2 [4] <2 [4] <2[2] No FP, No S <br /> 06/20/01 1519 3899 -2380 <50 <2 [4] <2 [4] <2 [41 <2 [4] <2[2] No FP, No S <br /> 09/12/01 1519 4329 -2810 <50 <2 [4] <2 [4] <2 [41 <2 [4] <2(2] No FP, No S <br /> 12/12/01 1519 4020 -2501 <50 <1 0[4] <1 0[4] <1 0(4] <1 0[41 1 2[2] No FP, No S <br /> 03/13/02 1519 3721 -2202 <50 062 <0 50 <0 50 <0 50 2 5[2] No FP, No S <br /> 06/18/02 1519 3738 -2219 <50 1 50 <0 50 <0 50 1 70 2 6[2] No FP, No S <br /> 09/11/02 15.19 44.49 -29.30 <50 1 1 <0.50 <0 50 <0 50 3 0[2] No FP, No S <br /> k V5 BP ARCG1213MQuarteHyl3_QTR 021Arco_2130_3QMR02 <br /> 2 of 11 <br />