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Table 1. Summary of Groundwater Monitoring Data: Water Elevations and Analyses <br /> ARCO Facility 434, Lodi, California - <br /> Tap-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 MBTB <br /> 5/9/96 59.86 -17.25 0.44 <br /> 916196 64.06 -21.45 -4.20 <0.5 <0.5 <0.5 <0.5 130(c) <5 <br /> 11/22/96 61.88 -19.27 2.18 <br /> W-1 l 42.78 <br /> 5/3/90 58.83 -16.05 -- 3.4 1.1 3.4 1.9 -- -- <br /> 10/02/90 64.18 -21.40 -5.35 -- -- -- -- -- __ <br /> 10/4/90 -- -- 2 2 1 4 -- -- <br /> 1/29/91 60.70 -17.92 3.48 -- -- -- -- __ _ <br /> 2/2/91 -- -- -- 18 1 3.2 2.9 --3/15/91 60.05 -17.27 0.65 -- -- -- -_ __ <br /> 4/18/91 -- -- -- 44 <0.5 <0.5 1.9 470 -- <br /> 7/22/91 63.18 -20.40 -3.13 <br /> 7124191 -- -- -- 12 <0.5 <0.5 <0.5 450 -- <br /> 10/22/91 64.42 -21.64 -1.24 <br /> 10/23/91 -- -- -- 6.9 <0.5 <0.5 <0.5 380 <br /> 2/10/92 61.49 -18.71 2.93 -- -- -- -- __ <br /> 2/11/92 -- -- -- <0.5 <0.5 <0.5 <0.5 340 -- <br /> 5/12/92 61.11 -18.33 0.38 <0.5 <0.5 <0.5 <0.5 80 -- <br /> 8/18/92 66.14 -23.36 -5.03 <0.5 <0.5 <0.5 <0.5 <50 11/17/92 65.93 -23.15 0.21 <0.7 <0.5 <0.5 <0.5 59 -- <br /> 2/22/93 63.54 -20.76 2.39 -- -- -- -- -_ __ <br /> 2/23/93 -- -- <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 5/25/93 62.82 -20.04 0.72 <br /> 5/26/93 -- -- -- <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 8/23/93 67.13 -24.35 -4.31 <0.5 <0.5 <0.5 <0.5 <50 11/16/93 64.31 -21.53 2.82 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 3/22/94 60.55 -17.77 3.76 <0.3 <0.3 <0.3 <0.5 <10 -- <br /> 6/23/94 63.28 -20.50 -2.73 <0.3 <0.3 <0.3 <0.5 <10 -- <br /> 9/28/94 66.73 -23.95 -3.45 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 12/19/94 64.30 -21.52 2.43 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 3/2/95 62.25 -19.47 2.05 <0.5 <0.5 <0.5 <0.5 <50 -- <br /> 5/18/95 60.45 -17.67 1.80 -- -- -- <br /> 5/19195 -- -- -- <0.5 <0.5 <0.5 <05 <50 -- <br /> 8/10/95 64.11 -21.33 -3.66 <br /> 33821TAL3LESk434N0V6.XLS <br />