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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 y L p L p L L u L ugIL Observations <br /> MW-1 2/28/95 1458 6000 5421 -3963 340 21 <0 5 0 6 <0 5 NA No FP, No S <br /> 5/19/95 1458 5241 -3783 210 2 9 <0 5 0 7 <0 5 NA No FP, No S <br /> 8/28/95 1458 5404 -3946 240 32 <05 1 0 <0 5 NA No FP, No S <br /> 1217/95 1458 5267 -3809 190 1 7 <0 5 <05 <0 5 NA No FP, No S <br /> 215/96 1458 5011 -3553 230 2 5 <0 5 0 5 <0 5 NA No FP, No S <br /> 5130196 1458 4717 -3259 180*** 1 2 <0 5 <0 5 <0 5 <4`* No FP, No S <br /> 9/18/96 1458 5096 -3638 200 1 6 <0 5 <0 5 <0 5 <5** No FP, No S <br /> 11/26/96 1458 4880 -3422 220 1 5 <0 5 <0 5 <0 5 5 No FP, No S <br /> 3124197 1458 4373 -2915 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP, No S <br /> 5120/97 1458 4432 -2974 230 <7** <0 6** <0 5 0 5 <5** No FP, No S <br /> 8119/97 1458 4778 -3320 200 65 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 11/19/97 1458 45 95 -3137 170 7 0 0 77 <0 5 0 63 <5 No FP, No S <br /> 314198 1458 4133 -2675 <50 0 51 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 6126/98 1458 3913 -2455 248 1 73 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 911198 1458 4089 -2631 249 519 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 1212/98 1458 3820 -23 62 227 <0 5 <0 5 <0 5 <0 5 127 No FP, No S <br /> 3131199 1458 3468 -2010 152 <0 5 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 6/4199 1458 35 98 -2140 168 263 <0 5 <0 5 <0 5 109 No FP, No S <br /> 9/2199 1458 4049 -2591 232 1 04 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 11/29/99 1458 38 64 -2406 129 <0 5 <0 5 <0 5 <0 5 <2 5 No FP, No S <br /> 3116100 1458 3466 -2008 55 <0 5 <0 5 <0 5 <0 5 <2 5 No FP, No S <br /> 6/26100 1458 3726 -2268 175 <0 5 <0 5 <0 5 <0 5 <2[2] No FP, No S <br /> 9/28100 1458 4149 -26 91 86 9[3] 214 <0 5 <0 5 <0 5 <2[2] No FP, No S <br /> 12/19/00 1458 3717 -2259 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP, No S <br /> 3/15/01 1458 35 00 -2042 <50 <2[4] <2[4] <2[4] <2[4] <2[2] No FP, No S <br /> 6120101 1458 3827 -2369 <50 <2[4] <2[4] <2[4] <2[4] <2[2] No FP, No S <br /> 9/12101 1458 4247 -2789 <50 <2[4] <2[4] <2[4] <2[4] <2[2] No FP, No S <br /> 12/12/01 1458 3936 -2478 <50 <1 0141 <1 0[4] <1 0[4] <1 0[4] 0 54[2] No FP, No S <br /> 3/13/02 1458 36 46 -21 88 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] No FP, No S <br /> 6118102 1458 3865 -2407 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] No FP, No S <br /> K IWprocesslJ5 BP AR=21301Quarter1yN1 QTR 0312130 GWMR 1003 1 of 13 <br />