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Table 1 A of 31 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Dr.,Stockton,California <br /> Well Depth Product Groundwater Groundwater Total <br /> Date Elevation to Water thickness, Elevation Elevation change TPH-G Benzene Toluene Ethylbenzene Xylenes MtBE DO <br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mgll <br /> E-5 6121100 -- 8.37 -5.92 -2.25 -- -- -- -- -- -- 0.48 <br /> (Cont.) 9113100 NP 10.17 -- -7.72 -1.80 <50 <0.5 <0.5 <0.5 <0.5 <2.50 3.09 <br /> 12/15/00 -- 9.62 -7.17 0.55 -- -- -- -- -- -- 1.10 <br /> 3/1/01 P 7.95 -- -5.50 1.67 <50.0 <0.500 <0.500 <0.500 <0.500 <2.50 3.9 <br /> 5110101 -- 7.64 - -5.19 0.31 - - - - -- - 2.8 <br /> E-6 8/26188 3.01 -- _- -- <br /> 11/28/88 <br /> -11/28/88 - <br /> 2/27/89 2,230 600 290 1,010 <br /> 5/30/89 -- <br /> 8/22189 -- <br /> 1214/89 <br /> 1/4/90 18.00 -14.99 -- <br /> 2/11/90 17.82 -14.81 0.18 -- _ <br /> 2/15/90 17.78 -14.77 0.04 - <br /> 2/22190 18.58 -15.57 -0.80 -- -- -- -- -- <br /> 318/90 17.65 -14.64 0.93 - 3,600 740 340 980 <br /> 415!90 17.67 - -14.66 -0.02 -- -- -- -- _ <br /> 4119/90 17.73 -14.72 -0.06 - -- <br /> 5/10190 18.11 -15.10 -0.38 <br /> 5/24190 18.13 -- •15.12 -0.02 <br /> 615/90 18.12 - -15.11 0.01 -- _ <br /> 6/19190 18.80 - -15.79 -0.68 -- -- -- -- <br /> 7112190 18.72 -15.71 0.08 -- -- __ <br /> 8116190 Dry -- <br /> 9117/90 Dry -- - -- - <br /> 10/11/90 Dry <br /> 1216190 Dry -- -- - -- - -- <br /> 2/12/91 18.86 -15.85 -- <br /> 2/25191 18.84 - -15.83 0.02 -- - -- <br /> 4/23191 18.14 -15.13 0.70 -- -- -- <br /> 7/15191 Dry - -- <br /> 10/8/91 <br /> 10/8/91 Dry - - -- <br /> 1/22192 Dry -- <br /> 4/22192 18.55 -15.54 <br /> 7/29/92 Dry -- -- - <br /> 10/29/92 Dry - - - <br />