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Tabs Paq of 31 <br /> 9 <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) mg/l <br /> PR-2 9/13/99 NP 9.12 -8.47 -1.74 <50 <0.5 <0.5 <0.5 <0.5 <5 3.3 <br /> (cont.) 12/15/99 -- 9.02 -8.37 0.10 -- -- -- -- -- -- 3.3 <br /> 3/23100 P 4.33 -3.68 4.69 <50 <0.5 <0.5 <0.5 <0.5 <2.5 3.5 <br /> 6/21/00 -- 8.61 -7.96 -4.28 -- -- -- -- -- -- 2.2 <br /> 9113/00 NP 8.36 -7.71 0.25 <50 <0.5 <0.5 <0.5 <0.5 <2.5 1.29 <br /> 12/15/00 NP 7.85 -7.20 0.51 -- -- -- -- -- -- 1.43 <br /> 3/2/01 P 5.73 -- -5.08 2.12 <50.0 <0.500 <0.500 <0.500 1.10 <2.50 4.2 <br /> 5/10101 - 5.83 - -5.18 -0.10 -- - - - - -- 2.1 <br /> BHD-1 8126188 0.58 -- -- -- 6,050 220 2,000 1,000 -- <br /> 11/28188 -- 1,870 <100 480 100 <br /> 2/27/89 -- <br /> 5/30/89 -- - 2,900 120 870 780 - <br /> 8/22/89 -- " -- 1,450 300 890 1,170 <br /> 12/4/89 -- -- -- -- 1,400 170 1,600 2,800 - <br /> 114/90 15.70 -15.12 -- -- __ -- -- <br /> 211/90 <br /> _211/90 15.42 -14.84 0.28 <br /> 2/15/90 15.39 -14.81 0.03 <br /> 2/22/90 16.22 -15.64 -0.83 -- -- -- <br /> 3/8/90 15.17 -- -14.59 1.05 -- 1,250 50 1,870 1,360 <br /> 415/90 15.38 - -14.80 -0.21 -- -- __ __ -- <br /> 4/19/90 15.58 -15.00 -0.20 <br /> 5110/90 15.92 -15.34 -0.34 - -- <br /> 5/24/90 15.89 - -15.31 0.03 -- -- - __ <br /> 6/5190 -- - <br /> 6/18/90 <br /> -- -- <br /> 6/18190 16.37 -15.79 -- - 1180 40 2070 860 <br /> 7112190 16.60 - -16.02 -0.23 -- -- -- -- <br /> 8/16190 17.89 -17.31 .1.29 -- - -- <br /> 9/17190 17.24 - -16.66 0.65 -- -- -_ _- -- <br /> 9118/90 17.24 -16.66 0.00 2,000 110 9 30 650 -- <br /> 10/11/90 17.31 -16.73 -0.07 -- -- -- -- -- <br /> 12/6/90 17.24 -16.66 0.07 -- -. __ -_ -- <br /> 2/11/91 16.92 -- -16.34 0.32 6,000 890 60 1,000 360 <br /> 2/25/91 16.86 -16.28 0.06 -- -- -- _. - <br /> 4123/91 15.99 -15.41 0.87 3,300 240 4.8 440 130 -- <br /> 7/16/91 18.00 -17.42 -2.01 7,000 420 420 400 830 <br /> 10/8/91 18.50 -- -17.92 -0.50 3,000 220 <4.0 210 15 - <br />