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Table 1. Summary of Groundwater Monitoring Data: Water Elevations and Analyses <br /> ARCO Facility 434, Lodi, California <br /> Top-of-casing Depth-to- Water-level Change since <br /> Well number elevation, water, elevation, last measurement, Concentrations in L <br /> and date in feet(a) in feet in feet in feet Benzene Toluene Eth lbenzene Xylenes TPH-G MBTE <br /> 8/10/95 64.15 -21.62 -3.70 <0.5 <0.5 <0.5 <05 <50 -- <br /> 11/17/95 63.22 -20.69 0.93 <0.5 <0.5 <0.5 <0.5 <50 <3 <br /> 2/14/96 60.55 -18.02 2.67 <0.5 <0.5 <0.5 1.9 <50 -- <br /> 5/9l96 59.90 -17.37 0.65 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 9/6/96 64.33 -21.80 -4.43 <0.5 <0,5 <0.5 <0.5 <50 <5 <br /> 11/22/96 62.25 -19.72 2.08 0.72 1.5 0.56 5.1 <50 <5 <br /> W-2A 42.92 <br /> 6124188 51.31 -8.39 -- 437 937 140 672 -- -- <br /> 9/28/88 59.13 -16.21 -7.82 -- -- -- -- -- __ <br /> 10/3/88 59.03 -16.11 0.10 55.8 16.3 6.4 15.3 --1/4/89 56.60 -13.68 2.43 760 220 11 214 -- -- <br /> 4/4/89 55.06 -12.14 1.54 700 14.4 78.3 520 -- -- <br /> 719/89 60.10 -17.18 -5.04 390 90 30 100 --10/16/89 60.10 -17.18 0.00 3090 1060 50 1 1 l 0 -- -- <br /> 1/18/90 57.84 -14.92 2.26 900 510 64 635 2400 -- <br /> 5/9/90 42.89 59.90 -17.01 -2.09 2500 1500 150 2100 -- <br /> 10/2/90 Dry -- -- -- -- -- -- --1/29/91 .60.95 -18.06 -1.05 -- -- -- -- -- __ <br /> 3/15/91 Dry -- -- -- -- -- -- -- -- <br /> 7/22/91 63.03 -20.14 -2.08 -- -- -- -- -- __ <br /> 10/22/91 Dry -- -- -- -- -- -- --2/10/92 61.69 -18.80 1.34 <br /> 2/11/92 -- -- -- 17 3.7 1.0 3.7 150 <br /> 5/12/92 61.29 -18.40 0.40 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 8/18/92 Dry <br /> 11/16/92 Dry <br /> 2/22193 Dry -- -- -- -- -- -- _- -- <br /> 5/25/93 63.07 -20.18 -1.78 <br /> 8/23/93 Dry <br /> 11/17/93 Dry <br /> 3/22/94 Dry <br /> 6/23/94 63.19 -20.30 -0.12 1.4 1.1 0.3 2.8 15 <br /> 9/28/94 Dry -- -- -- -- -- -- --12/19/94 63.70 -20.81 -0.51 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 33821TA13t,t:S1434N0V6.Xt.S <br />