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TABLE 1
<br /> GROUNDWATER MONITORING DATA
<br /> ARCO Service Station 0548
<br /> 1612 Hammer Lane
<br /> Stockton, California
<br /> (Page 1 of 3)
<br /> dell/ static
<br /> Sample Elevation of Water Elevation of Ethyl- Total
<br /> Number Date Top of Casing Level Groundwater TPH9 Benzene Toluene benzene Xylenes TOG Observations
<br /> MW-1
<br /> W-49-MWI 10/30/91 10.36 49.58 -39.22 <50 2.1 <0.50 <0.50 0.96 NS No FP, No S, No 0
<br /> W-49-MW1# 10/30/91 10.36 NM NM <50 4.50 <0.50 <0.50 <0.50 NS NS
<br /> MW-1((56) 03/18/92 10.36 46.30 -35.94 130 18 - 0.50 <0.50 1.7 NS 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 Ns No FP, No S, No 0
<br /> MW-1(56) 09/04/92 10.36 49.85 -39.49 260 8.7 *<1 *<1 <1* NS No fP, No S, Yes 0
<br /> MW-1(56) 12/04/92 10.36 48.83 -38.47 ***150 7.0 <0.50 <0.50 <0.50 NS No FP, No S, Yes 0
<br /> MW-1* 03/04/93 10.36
<br /> MW-1(56) 06/07/93 10.36 44.24 -33.88 *160 0.9 <0.5 <0.5 <0.5 <0.5 No FP, No S, Yes 0
<br /> MW-1(56) 09/02/93 10.36 46.14 -35.78 130 0.9 <0.5 <0.5 <0.5 <0.5 No FP, No S, Yes 0
<br /> NW-1(56) 12/16/93 10.36 43.92 -33.56 110 1.3 0.7 0.6 1.5 <0.5 No FP, No S, Yes 0
<br /> MW-1(40) 04/08/94 10.36 40.94 -30.58 150 22 26 4.5 31 NS No FP, No S
<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 NS 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 NS No FP, No S, No 0
<br /> MW-2(61) 06/10/92 9.82 47.57 -37.75 <50 <0.50 <0.50 4.50 <0.50 NS No FP, No S, No 0
<br /> MW-2(60) 09/04/92 9.82 49.36 -39.54 <50 <0.50 <0.50 <0.50 <0.50 NS 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 NS No FP, No S, Yes 0
<br /> MW-2(61) 03/04/93 9.82 45.46 -35.64 ***57 **<0.6 <0.5 40.5 <0.5 NS No FP, No S, Yes 0
<br /> MW-2(61) 06/07/93 9.82 43.84 -34.02 <50 <0.5 <0.5 <0.5 <0.5 NS No FP, No S, No 0
<br /> MW-2(61) 09/02/93 9.82 45.65 -35.83 <50 <0.5 <0.5 <0.5 <0.5 NS No FP, No S, No 0
<br /> 14W-2(61) 12/16/93 9.82 43.49 -33.67 <50 2.9 <0.5 <0.5 <0.5 NS No FP, No S, No 0
<br /> MW-2(40) 04/08/94 9.82 40.41 -30.59 <50 <1.5 <1.5 <1.5 <2.5 NS No FP, No S
<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 NS 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 NS No FP, No S, No 0
<br /> MW-3(62) 06/10/92 9.95 47.47 -37.52 60 4.50 <0.50 <0.50 <0.50 NS 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 NS No FP, No S, Yes 0
<br /> MW-3(62) 12/04/92 9.95 48.30 -38.35 **<150 <0.50 <0.50 <0.50 <0.50 NS No FP, No S, Yes 0
<br /> MW-3(62) 03/04/93 9.95 45.43 -35.48 **<140 <0.5 <0.5 <0.5 0.7 NS No FP, No S, Yes 0
<br /> NW-3(62) 06/07/93 9.95 43.75 -33.80 **<150 <0.5 <0.5 <0.5 <0-5 NS No FP, No S, Yes 0
<br /> See notes on page 3 of 3
<br /> 0429ccsr/30004-11
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