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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 TPI -G MBTE <br /> 12/19/94 64.18 -21.72 2.35 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 3/2195 62.20 -19.74 198 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 5/18/95 60.45 -17.99 1.75 -- -- -- -- -- -- <br /> 5/19/95 -- -- -- <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 8/10195 63.88 -21.42 -3.43 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 11/17/95 63.04 -20.58 0.84 <0.5 <0.5 <0.5 <0.5 <50 <3 <br /> 2114196 60.51 -18.05 2.53 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 5/9/96 59.76 -17.30 0.75 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 9/6/96 63.90 -21.44 -4.14 <0.5 <0.5 <0.5 <0.5 <50 <5 <br /> 11/22/96 62.25 -19.79 1.65 <0.5 <0.5 <0.5 <0.5 <50 <S <br /> W-4 43.06 <br /> 7/20187 52.23 -9.17 <br /> 7/23/87 -- -- -- 1.6 <0.5 0.9 10 <900 11/18/87 55.10 -12.04 -2.87 2 9 3 32 <200 -- <br /> 2/1/88 53.36 -10.30 1.74 -- -- -- -- -- -_ <br /> 6124/88 55.60 -12.54 -2.24 <0.5 <0.5 <0.5 <0.5 -- -- <br /> 9/28/88 59.29 -16.23 -3.69 <br /> 1013188 59.36. -16.30 -0.07 <0.5 <0.5 <0.5 <0.5 -- -- <br /> 1/4/89 57.59 -14.53 1.77 -- -- __ <br /> 1/5/89 -- -- -- <0.5 <0.5 <0.5 <0.5 -- <br /> 4/4/89 55.98 -12.92 1.61 <0.5 <0.5 <0.5 <0.5 -- -- <br /> 7/9/89 59.12 -16.06 -3.14 -- -- -- _ <br /> 7/11/89 -- -- -- <0.5 <0.5 <0.5 <0.5 --10/16/89 60.77 -17.71 -1.65 <0.5 <0.5 <0.5 <0.5 --1/18/90 5 8.66 -15.60 2.11 -- -- -- -- -- __ <br /> 1/19/90 -- 0.5 0.4 <0.3 0.6 <50 -- <br /> 5/9/90 42.99 -- -- -- -- -- -- -- <br /> 10/02/90 Dry <br /> 1/29/91 Dry -- -- -- -- -- --1/30/91 <br /> -- -- -- -- -- -- --3/15/91 Dry -- -- -- -- -- -- -- <br /> 4/18/91 -- <br /> 7122/91 Dry -- -- -- -- -- -- _- -- <br /> 10/22/91 Dry <br /> 3382\TAB LESA34NOV6.XLS <br />