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Tate Pa 9 e'14 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) mg/l <br /> E-9 8116190 17.82 - -16.26 -0.29 <br /> (cont.) 9117190 18.15 -16.59 -0.33 <br /> 9/19190 18.15 -- -16.59 0.00 24,000 130 140 80 6,000 <br /> 10/11/90 18.24 -- -16.68 -0.09 -- -- -- -. -- <br /> 1 PJ6190 <br /> _1216190 18.11 -16.55 0.13 <br /> 2112191 17.80 -16.24 0.31 18,000 2,600 130 610 4,700 <br /> 2/25191 18.76 - -17.20 -0.96 -- -- ._ __ __ <br /> 4/23191 16.89 -15.33 1.87 -- -- __ <br /> 7115/91 Dry -- -- -- -- - <br /> 10/8/91 Dry -- <br /> 1/22/92 <br /> 1/22/92 18.24 -16.68 -- -- -- -- <br /> 4/22/92 17.45 -15.89 0.79 3,600 170 10 50 120 -- <br /> 7/29/92 Dry -- -- -- -- _ -- -- <br /> 10/29/92 17.19 -15.63 -- 8,900 480 32 440 1,100 <br /> 1127/93 16.10 - -14.54 1.09 12,000 390 25 310 730 - <br /> 4/29/93 14.19 -12.63 1.91 12,000 270 <98 150 380 -- <br /> 8/5/93 15.83 -14.27 -1.64 16,000 370 22 220 460 <br /> 11/10/93 16.18 -14.62 -0.35 12,000 210 21 200 390 <br /> 3/21/94 15.51 -- -13.95 0.67 6,300 170 24 200 320 -- <br /> 6/27194 15.34 -13.78 0.17 10,000 780 18 660 980 <br /> 9/29194 16.36 -14.80 -1.02 8,800 430 14 470 630 <br /> 12/8/94 15.97 -14.41 0.39 7,800 450 20 610 810 -- <br /> 3/8/95 13.54 -11.98 2.43 8,600 100 <20 230 260 - <br /> 6/1/95 12.02 -10.46 1.52 24,000 550 38 870 2,000 <br /> 9/11/95 14.22 -- -12.66 -2.20 150,000 1,700 7,600 3,000 14,000 - <br /> 12/5/95 14.58 -13.02 -0.36 45,000 960 1,500 1,000 3,200 <br /> 3/18196 9.62 -- -8.06 4.96 8,800 290 130 240 490 -- <br /> 6/18/96 10.35 -8.79 -0.73 1,600 110 32 69 91 110 <br /> 9/25/96 12.82 - -11.26 -2.47 2,800 130 <5 180 46 83 - <br /> 12/4/96 12.20 -10.64 0.62 2,800 290 32 250 80 560 -- <br /> 3/19/97 NP 7.72 - -6.16 4.48 <50 <0.5 <0.5 <0.5 <0.5 <5 0.1 <br /> 615197 NP 9.39 - -7.83 -1.67 <50 <0.5 <0.5 <0.5 <0.5 8.5 0.2 <br /> 8/19/97 NP 10.84 -9.28 -1.45 <50 <0.5 <0.5 <0.5 <0.5 <5 0.2 <br /> 11/25/97 NP 11.10 -9.54 -0.26 <50 <0.5 <0.5 <0.5 <0.5 <5 -- <br /> 3/19/98 P 4.80 -3.24 6.30 <50 <0.5 <0.5 <0.5 <0.5 320 0.9 <br /> 6124/98 NP 6.76 -5.20 -1.96 <50 <0.5 <0.5 <0.5 <0.5 <5 2.2 <br /> 9/10198 NP 8.59 -7.03 -1.83 <50 <0.5 <0.5 <0.5 <0.5 <5 -- <br /> 12/17/98 NP 8.61 - -7.05 -0.02 <50 <0.5 <0.5 <0.5 <0.5 15.0 <br />