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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 'lop of Screen Level Elevation TPHG Benzene Toluene benzene Xylene MTBE <br /> Number Date feet msl feet b s feet b s (feet msl L /L IL µ L /L µ /L Observations <br /> MW4 02/28/95 1457 5500 5427 -3970 <50 0 9 <0 5 <0 5 <0 5 NA No FP,No S <br /> 05/19/95 1457 5238 -3781 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 08/28/95 1457 54 10 -3953 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 12/07/95 1457 5269 -38 12 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 02/05/96 1457 50 12 -35 55 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 05/30/96 1457 4721 -3264 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 09/18/96 1457 51 80 -3723 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 11/26/96 1457 4884 -3427 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 03/24/97 1457 43 84 -2927 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 05/20/97 1457 4434 -2977 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 08/19/97 14 57 4789 -3332 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 11/19/97 1457 4601 -3144 <50 1 1 068 <0 5 054 <5 No FP,No S <br /> 03/04/98 1457 4164 -27 07 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 06/26/98 1457 39 16 -24 59 <50 141 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 09/01/98 1457 41 83 -2726 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 12/02/98 1457 3822 -23 65 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 03/31/99 1457 3477 -2020 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 06/04/99 1457 3586 -21 29 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 09/02/99 1457 4059 -2602 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 11/29/99 1457 3878 -2421 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> 03/16/00 1457 3475 -2018 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> 06/26/00 1457 3721 -2264 <50 <0 5 <0 5 <0 5 <0 5 <2[2] No FP,No S <br /> 09/28/00 1457 4158 -2701 <50 <0 5 <0 5 <0 5 <0 5 <2[2] No FP,No S <br /> 12/19/00 1457 372 -22 63 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> 03/15/01 1457 3503 -2046 <50 <2 [4] <2 [4] <2 [4] <2 [4] <2[21 No FP,No S <br /> 06/20/01 1457 3833 -2376 <50 <2 [4] <2 [4] <2 [4] <2 [4] <2[2] No FP,No S <br /> 09/12/01 1457 4261 -28 04 <50 <2 [4] <2 [4] <2 [4] <2 [4] <2[2] No FP,No S <br /> 12/12/01 1457 3937 -24 80 <50 <1 0[4] <1 0[4] <1 0[41 <1 0[4] <0 50[2] No FP,No S <br /> 03/13/02 1457 3643 -21 86 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] No FP,No S <br /> 11 1 06/18/02 1457 3870 -2413 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] No FP,No S <br /> Arco_2130_Quai terly_Data XLS <br /> 4 of 12 <br />