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Ta�fe 1 <br /> Page 2 of 7 <br /> Groundwater Monitoring Data <br /> 1995 to Present <br /> ARCO Service Station No. 2130 <br /> 7906 North El Dorado Street, Stockton, California <br /> Well EIevation Static Water Groundwater Ethyl- Total <br /> Number Date Top of Casing Top of Screen Level Elevation TPHG Benzene Toluene benzene Xylene MTBE Obseryatsons <br /> MW-2 05/20/97 15 19 6000 4509 -2990 720 71 <1* 13 11 <6* No FP, No S <br /> MW-2 08/19/97 15 19 60 00 4869 -3350 1,200 240 <5 41 <5 <50** No FP,No S <br /> MW-2 11/19/97 1519 60 00 4677 -3158 <50 17 089 <0 5 0 87 <5 No FP, No S <br /> MW-2 03/04/98 1519 6000 4218 -2699 <50 2 2 <0 5 <0 5 <0 5 51 No FP,No S <br /> MW-2 06/26/98 1519 6000 3987 -2468 53 4 3 65 <05 <05 112 652 No FP, No S <br /> MW-2 09/01/98 1519 6000 4161 -2642 322 484 <0 5 169 167 <5 No FP, No S <br /> MW-3 02/28/95 1610 60 00 5588 -3978 73 0 7 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-3 05/19/95 1610 6000 53 94 -3784 52*** <0 5 <05 <0 5 <0 5 NA No FP,No S <br /> MW-3 08/28/95 1610 6000 55 64 -3954 <50 <05 <05 <05 <0 5 NA No FP,No S <br /> MW-3 12/07/95 1610 6000 5430 -3820 <50 <0 5 <0 5 <05 <0 5 NA No FP, No S <br /> MW-3 02/05/96 1610 6000 5173 -35 63 <50 <0 5 <0 5 <0 5 <0 5 NA No FP, No S <br /> MW-3 05/30/96 1610 6000 4879 -3269 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP, No S <br /> MW-3 09/18/96 1610 6000 52 73 -3663 <50 <0 5 <05 <05 <0 5 <3 No FP, No S <br /> MW-3 11/26/96 1610 6000 5041 -3431 <50 19 <0 5 <05 <0 5 <3 No FP, No S <br /> MW-3 03/24/97 1610 6000 4529 -2919 <50 <0 5 <0 5 <0 5 <05 <3 No FP, No S <br /> MW-3 05/20/97 1610 60 00 4593 -2983 <50 <0 5 <0 5 <05 <0 5 <3 No FP, No S <br /> MW-3 08/19/97 1610 6000 4956 -3346 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP, No S <br /> MW-3 11/19/97 1610 6000 4762 -3152 <50 13 1 1 <0 5 0 83 <5 No FP, No S <br /> MW-3 03/04/98 1610 6000 4295 -2685 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP, No S <br /> MW-3 06/26/98 1610 6000 4067 -2457 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP, No S <br /> MW-3 09/01/98 1610 6000 4250 -2640 716 <0 5 <05 <0 5 <0 5 <5 No FP, No S <br /> MW-4 02/28/95 1457 5500 5427 -3970 <50 0 9 <0 5 <05 <0 5 NA No FP, No S <br /> MW-4 05/19/95 1457 5500 5238 -3781 <50 <05 <0 5 <05 <0 5 NA No FP, No S <br /> CP1D 1QMR\3RDQTRARC01213OQ398 X1S <br /> Table 1 <br /> �CKKCiCEg <br /> 11/16/98 <br />