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TABLE 1 <br /> GROUND-WATER MONITORING DATA <br /> ARCO Service Station No. 0548 <br /> 1612 Hammer Lane <br /> Stockton, California <br /> (Page 1 of 2) <br /> Well/ Static <br /> Sample Elevation of Water Elevation of Ethyl- Total <br /> Number Date Top of Casing Level Ground Water TPH9 Benzene Toluene benzene Xylenes observations <br /> NW-1 <br /> W-49-MW1 10/30/91 10.36 49.58 -39.22 <50 2.1 <0.50 <0.50 0.96 No FP, No S, No 0 <br /> W-49-MW1# 10/30/91 NM NM NM <50 <0.50 <0.50 <0.50 <0.50 NS <br /> MW-1((56) 03/18/92 10.36 46.30 -35.94 130 18 0.50 <0.50 1.7 No FP, No S, No 0 <br /> MW-1(56) 06/10/92 10.36 48.10 -37.74 <50 1.0 <0.50 <0.50 <0.50 No FP, No S, No 0 <br /> MW-1(56) 09/04/92 10.36 49.85 -39.49 260 8.7 *<1 *<1 41* No FP, No S, Yes 0 <br /> NW-1(56) 12/04/92 10.36 48.83 -38.47 ***150 7.0 <0.50 <0.50 <0.50 No FP, No S, Yes 0 <br /> MW-2 <br /> W-49-MW2 10/30/91 9.82 49.10 -39.28 <50 <0.50 <0.50 <0.50 <0.50 No FP, No S, No 0 <br /> MW-2(61) 03/18/92 9.82 48.81 -35.99 <50 <0.50 <0.50 <0.50 <0.50 No FP, No S, No 0 <br /> MW-2(61) 06/10/92 9.82 47.57 -37.75 <50 <0.50 <0.50 <0.50 <0.50 No FP, No S, No 0 <br /> MW-2(60) 09/04/92 9.82 49.36 -39.54 <50 <0.50 <0.50 <030 <0.50 No FP, No S, Yes 0 <br /> MW-2(61) 12/04/92 9.82 48.35 -39.53 <50 <0.50 <0.50 <0.50 <0.50 No FP, No S, Yes 0 <br /> MW-3 <br /> W-49-MW3 10/30/91 9.95 49.00 -39.05 <50 <0.50 <0.50 <0.50 <0.50 No FP, No S, No 0 <br /> MW-3(62) 03/18/92 9.95 45.78 -35.83 <50 <0.50 <0.50 <0.50 <0.50 No FP, No S, No 0 <br /> MW-3(62) 06/10/92 9.95 47.47 -37.52 60 <0.50 <0.50 <0.50 <0.50 No FP, No S, No 0 <br /> MW-3(62) 09/04/92 9.95 49.22 -39.27 **<73 <0.50 <0.50 <0.50 <0.50 No FP, No S, Yes 0 <br /> MW-3(62) 12/04/92 9.95 48.30 -38.35 **<150 <0.50 <0.50 <030 <0.50 No FP, No S, Yes 0 <br /> See notes on page 2 of 2 <br /> 0118ccar <br /> 30004-6 <br />