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Table 2 <br /> Groundwater Elevation and Analytical Data(ARCO) <br /> ARCO Service Station#2133 <br /> 2908 West Benjamin Holt Drive <br /> Stockton,California <br /> Well Depth Product Groundwater Groundwater Ethyl- Total <br /> Well pate Elevation to Water Thickness Elevation Elevation TPI-Ig Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled Notes (ft,MSL) (ft,TOC) (ft) (ft,MSL! Change(ft) (ugli) (ug1l) (ugli) (ug/1) (ugll) (ug11) (mg1L) <br /> E-8 911312000 NP 8.73 -- -7.76 -1.82 <50 <0.5 <0.5 <0.5 <0.5 <2.5 1.42 <br /> (cont.) 1211512000 P 8.20 - -7.23 0.53 444 0.741 0.802 <0.500 -0.500 2.67 0,60 <br /> 31112001 NP 6.16 - -5.19 2.04 -50.0 <0.500 <0.500 <0.500 -0.500 2.61 3.1 <br /> 5110!2001 P 6.22 - -5.25 -0,06 198 <0.500 0.772 0.608 1.52 <2.50 2.7 <br /> 8!2212001 P 8.97 - -8,00 -2.75 360 1.2 1.4 0.63 2.0 -2.5 -- <br /> 1215l2001 P 8.15 •- -7.16 0.82 280 1.1 <0.50 -0.50 0.71 4.8 1.12 <br /> 3!1112002 P 6.40 -- -5.43 1.75 77 <0.50 -0.50 -0.50 <0.50 2.9 1.62 <br /> 61612002 P 7.31 -- -6.34 -0.91 51 <0.50 -0.50 4.50 <0.50 6.7 0.83 <br /> 9!2412002 Welt Inaccessible;Roadway Repaved <br /> 1211712002 Well Inaccessible;Well Paved Over <br /> 3/1812003 Well Inaccessible;WeII Paved Over <br /> 6117!2003 Well Inaccessible;Well Paved Over <br /> 912412003 Well Inaccessible;Well Paved Over <br /> 12118/2003 P 8.68 -- -7.71 -1.37 60.00 -0.50 <0,50 -0.50 <0,50 2.5 - <br /> 311712004 P 6.54 - -5.57 2.14 67.00 -0.50 <0.50 <0.50 <0.50 2 - <br /> 6122l2004 8.60 - -L63 -2,06 - - - -_ -- __ ,- <br /> 9121l2004 9.69 -- -872 -1.09 81 <0.50 -0.50 -0.50 <0.50 5.3 -- <br /> 12/28/04 8.28 -- -7.31 1.41 -- - -- - _ - - <br /> 31812005 Traffic Hazard <br /> E-9 8/2611988 1.56 - -- » -- -- 4,700 4,900 1,400 6,100 -- - <br /> 11128J1988 -- - -- -- 760 1,100 400 1,280 - - <br /> 2/27/1989 -- -- - - 900 10D 260 1,700 - -- <br /> 5130/1989 <br /> 8/2211989 - -- .. - - 690 -500 <500 860 -- - <br /> 121411989 -- _ -- '• - -- - - <br /> 114l1990 16.64 -7 5.08 - <br /> 2/1/1990 16.44 -- -14.88 0.20 <br /> 2115/1990 16.39 -- -14.83 0.05 <br /> 212211990 16.27 -- -14.71 0.12 <br /> 318/1990 16.19 -- -14.63 0.08 - 490 70 360 1,440 -- -- <br /> 415/1990 16.48 - -14.92 -0.29 -- - <br /> 4/19/1990 16.49 -14.93 -0.01 <br /> 5!1011990 16.66 -15.30 -0.37 <br /> 5!2411990 16.77 -15.21 0.09 -- -- -- -- _ __ <br /> 61611990 16.70 -15.14 0.07 <br /> 6/1811990 17.47 -- -15.91 -0.77 <br /> 7/12/1990 17.53 - -15.97 -006 - - -• _ _ -_ <br /> 811611990 17.82 - -16.26 -0.29 <br /> 9117/1990 18.15 -- -16.59 -0.33 - - <br /> 9/1911990 18.15 -- -16.59 0.00 24,000 130 140 80 6,000 - -- <br /> 10711/1990 18.24 -- -16.68 -0.09 - -- - -- _ <br /> 12!611990 18.11 -- -16.55 0.13 -- - - » <br /> 2!12!1991 17.60 - -16.24 0.31 18.000 2,600 130 610 4,700 -- <br /> 2125l1991 18.76 -- -17.20 -0.96 - - -- _- <br /> 4123/1991 16.89 -- -15.33 1.87 <br /> 7115/1991 dry -- - <br /> 101811991 dry - -- _- <br /> 1/2211992 18.24 - -16.68 - <br /> 4!2211992 1245 - -15.89 0.79 3,600 170 10 50 120 <br /> 712911992 dry -- - .- - _ __ .. _ <br /> 10/29/1992 17.19 -- -15.63 -- 8,900 460 32 440 1,100 <br /> 1127/1993 16.10 -- -14.54 1.09 12,000 390 25 310 730 <br /> 4129/1993 14.19 - -12.63 1.91 12,000 270 <98 150 380 <br /> 8/5/1993 15.83 - -14,27 -1.64 16,000 370 22 220 460 <br /> 11/1011993 16.18 -14.62 -0.35 12,000 210 21 200 390 <br /> • 312111994 15.51 -13.95 0.67 6,300 170 24 200 320 <br /> 6127!1994 15.34 Y -13.78 0.17 10,000 780 18 660 980 _ -- <br /> 9!2911994 16.36 -14.80 -1.02 8,800 430 14 470 630 <br /> 12/8/1994 15.97 -14.41 0.39 7.800 450 20 610 810 <br /> 31811995 13.54 - -11.98 2.43 8,600 100 -20 230 260 _ _ <br /> 6/111995 12.02 - -10.46 1.52 24,000 550 38 870 2,000 _ _ <br /> 1:1B P-ARCO%21334Tab I e slgwta b I es2133.x i s <br /> 10 of 24 <br />