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• i • <br /> TABLE 1 <br /> GROUNDWATER MONITORING DATA - <br /> ARCO Service Station No 2130 <br /> 7906 North El 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 feet b s feet b s feet msl IL L /L IL L L Observations <br /> MW-7 02/28/95 14 16 53 50 53 61 -3945 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 05/19/95 14 16 5173 -3757 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 08/28/95 14 16 53 51 -3935 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 12/07/95 14 16 52 10 -37 94 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 02/05/96 14 16 4958 -3542 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 05/30/96 14 16 4665 -3249 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 09/18/96 14 16 5043 -3627 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 11/26/96 14 16 4830 -34 14 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 03/24/97 14 16 4320 -2904 <200*** <2** <0 5 <0 5 <0 5 <4** No FP,No S <br /> 05/20/97 14 16 43 81 -29 65 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 08/19/97 14 16 4725 -3309 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 11/19/97 14 16 4542 -3126 <50 2 6 2 9 0 80 4 5 <5 No FP,No S <br /> 03/04/98 14 16 4077 -2661 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 06/26/98 14 16 3857 -2441 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 09/01/98 1416 4042 -2626 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 12/02/98 14 16 3770 -2354 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 03/31/99 14 16 34 16 -2000 <50 1 11 106 0 932 273 <5 No FP,No S <br /> 06/04/99 14 16 3549 -21 33 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 09/02/99 14 16 4002 -25 86 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 11/29/99 1416 3821 -24 05 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> 03/16/00 14 16 34 14 -1998 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> 06/26/00 14 16 3678 -2262 <50 <0 5 <0 5 <0 5 <0 5 <2[2] No FP,No S <br /> 09/28/00 14 16 4102 -26 86 <50 <0 5 <0 5 <0 5 <0 5 <2[2] No FP,No S <br /> 12/19/00 14 16 3663 -2247 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> 03/15/01 14 16 3450 -2034 <50 <2 [4] <2 [4] <2 [4] <2 [4] <2[2] No FP,No S <br /> 06/20/01 14 16 3779 -23 63 <50 <2[4] <2 [4] <2 [4] <2 [4] <2[21 No FP,No S <br /> 09/12/01 14 16 4200 -2784 <50 <2 [4] <2[4] <2 [4] <2 [4] <2[2] No FP,No S <br /> 12/12/01 14 16 3885 -24 69 <50 <1 0[4] <1 0[41 <1 0[4] <1 0[4] <0 50[2] No FP,No S <br /> 03/13/02 14 16 3593 -2177 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] No FP,No S <br /> Arco_2130_Quarterly_Data XLS Delta <br /> 7 of 12 <br />