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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 Top of Screen Level Elevation TPHg Benzene Toluene benzene Xylene MtBE <br /> Number Date (feet ms]) (ft btc) (ft btc) (feet msl) --�tg/L. Itg/L n/L jig/L_ µg/L µg/L Observations <br /> MW-6 12/19/00 1455 37 39 -22 84 <50 156 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> (cont) 03/15/01 1455 35 14 -2059 <50 <2 [4] <2[4] <2 [4] <2[4] <2[21 No FP,No S <br /> 06/20/01 1455 3835 -23 80 <50 <2 [4] <2 [4] <2[4] <2 [4] <2[2] No FP,No S <br /> 09/12/01 1455 4268 -28 13 <50 <2 [4] <2 14] <2[4] <2[4] <2[2] No FP,No S <br /> 12/12/01 1455 3950 -2495 73[6] <1 0[4] <1 0[4] <1 0[4] <1 014] <0 50[2] No FP,No S <br /> 03/13/02 1455 3663 -2208 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] No FP,No S <br /> 06/18/02 1455 3874 -24 19 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] No FP,No S <br /> 09/11/02 1455 4384 -29 29 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] No FP,No S <br /> 12/18/02 1455 41.32 -26.77 71 <0.50 <0 50 <0.50 <0.50 <0 50[2] No FP,No S <br /> MW-7 02/28/95 1416 5350 5361 -3945 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 05/19/95 1416 5173 -3757 <50 <0 5 <0 5 <05 <0 5 NA No FP,No S <br /> 08/28/95 1416 5351 -3935 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 12/07/95 1416 5210 -3794 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 02/05/96 1416 4958 -3542 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> 05/30/96 1416 4665 -3249 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 09/18/96 1416 5043 -3627 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 11/26/96 1416 4830 -3414 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 03/24/97 1416 4320 -29 04 <200*** <2** <0 5 <0 5 <0 5 <4** No FP,No S <br /> 05/20/97 1416 4381 -2965 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> 08/19/97 1416 47 25 -33 09 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 11/19/97 1416 4542 -3126 <50 2 6 2 9 080 4 5 <5 No FP,No S <br /> 03/04/98 1416 4077 -2661 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 06/26/98 1416 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 t <br /> 12/02/98 1416 3770 -2354 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 03/31/99 1416 34 16 -2000 <50 1 11 106 0 932 273 <5 No FP,No S <br /> 06/04/99 1416 3549 -2133 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 09/02/99 1416 4002 -25 86 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> 11/29/99 1416 3821 -2405 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> 03/16/00 1416 34 14 -1998 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> Arco_2130_4QMR02 <br /> 7 of 12 <br />