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Table 2
<br /> Groundwater Elevation and Analytical Data(ARCO)
<br /> ARCO Service Station#2133
<br /> 2908 Benjamin Holt Drive
<br /> Stockton,California
<br /> Well Depth Product Groundwater Groundwater Ethyl- Xylenes
<br /> Well Date Elevation to Water Thickness Elevation Elevation TPMg Benzene Toluene benzene {total) MtBE DO
<br /> Number Sampled (ft,MSL) (ft,TOC) (ft) (It MSL) Change(ft) Jug/1) (ug/1) (u911) (u911) (ug/1) (u91l) Img1L)
<br /> E-2 8!2611988 2,86 -
<br /> 11128M 988 - - - - - 79 4 5 12 --
<br /> 2/27/1989 - -- - -• - 300 7.6 9.9 47,6
<br /> 5/3011989 - - -- - -- 638 10.3 19.4 75,3 - -
<br /> 8/2211989 -- - -- - - 85 <25 <25 <25 -
<br /> 12l411989 - -- - - - 102 8,2 <0.6 53 - -
<br /> 11411990 17.90 -- -15,04 - _ _ _
<br /> 21111990 17.70 - -14,84 0.20 - - -
<br /> 2/1511990 17.67 - -14.81 0.03 - -- -
<br /> 212211990 1844 - -15.58 -0.77 - - - _ _
<br /> 31811990 17.40 - -14.54 1.04 - 108 24.5 15.6 33.9 - -
<br /> 4/5/1990 17.69 - -14.83 -0.29 - -- - - _
<br /> 411911990 17.72 - -14.86 -0.03 -
<br /> 5/1011990 18,03 - •15.17 -0.31 -
<br /> 5!2411990 17.96 - -15.10 0,07 -
<br /> 615/1990 17.95 - -15.09 0.01 -
<br /> 6/18/1990 18.86 - -16.00 -0.91 - 63.6 8 6.3 6.8 -- -
<br /> 7/1211990 18.76 - -15.90 0.10 - - - _ _
<br /> 8716/1990 19.05 - -16.19 -0.29 - --
<br /> 9117/1990 19.40 - -16.54 -0.35 --
<br /> 9119!1990 19.40 - -18.54 0.00 2,000 1D 19 so 200 - --
<br /> 1011171990 19.49 - -16,63 -0.09 - - - _ _ _ --
<br /> 121611990 19.34 - -16,48 0.15 - -
<br /> . 211111991 19.00 - -18.14 0.34 - _ __ _
<br /> 212511991 16.93 -16.07 0.07
<br /> 4123/1
<br /> 991
<br /> 91 m05 -15.19 0.88 1,300 19 <0.5 1.2 1.8 -- -
<br /> 7/1511991 2D,75 - -17.69 -2.70 1,6DO 62 20 7.3 43 - -
<br /> 10/811991 21.30 - -18.44 -0.55 2,200 55 <2.5 3.3 6 - -
<br /> 112211992 19.47 - -16.61 1.83 2,400 41 14 22 47 - -
<br /> 412211992 18.62 - -15.76 0.85 1,200 37 2.2 3.7 6 - -
<br /> 712911992 20.07 - -17.21 -1.45 1.800 45 4.5 9.3 4.7
<br /> 10129/1992 20.52 -- -17.66 -0,45 540 12 <0.5 2.5 1.4
<br /> 1/27/1993 17.23 -- -14.37 3.29 1,900 47 9.4 75 7.0 -- -
<br /> 4129/1993 15.43 - -12.57 1.80 3,400 110 15 15 29 - -
<br /> 8/511993 17.10 - -14,24 -1.67 2.300 45 <5 12 5 - -
<br /> 11/1011993 - - _ -
<br /> 3121!1994 16.86 - -13.94 - 11000 13 8 7 6 -
<br /> 612711994 16.58 - -13.72 0.22 1,200 9.4 9.5 9.2 7.6 -- -
<br /> 9129194 -- _ - » _ --
<br /> 12/611994 17,20 - .14.34 -- 600 12 3.8 4,7 4
<br /> 301995 14,85 -- •11.99 2.35 1,300 7.5 4 17 7.3
<br /> 61111995 13,21 -- -10.35 1.64 1,800 25 2.6 40 52
<br /> 911111995 15.49 - -12.63 -2.28 1,5D0 9 <3 22 5
<br /> 121511995 15.82 - 42.96 -0.33 660 3 <4 4 1
<br /> 311811996 10-68 - -7,82 5.14 73D 5.6 2.7 15 13
<br /> 611811996 11.55 - -8,69 487 550 5.4 1.2 11 10 10 _
<br /> 9/2511996 14.10 - •11.24 -2.55 1,200 13 <0.5 23 24 10 _
<br /> 121411996 13.50 - -10.64 0.60 680 6.4 <0.5 2.4 2.7 8.7 -
<br /> 3119/1997 NP 8.97 - -6.11 4.53 <50 <0.5 <0.5 <0.5 <0.5 <5 0.4
<br /> 615/1997 NP 10.65 - -7.79 -1.68 82 <0.5 <0,5 <0.5 <0.5 <5 0.5
<br /> 6/19/1997 NP 12.11 - -9.25 -1.46 240 <0.5 <0,5 <0.5 <0.5 <5 0,4
<br /> 1112511997 NP 12.25 -9.39 -0.14 280 <0.5 <0.5 0.85 <0.5 <5 -
<br /> 3119A998 NP 6,03 -- -3.17 6.22 <50 <0.5 <0.5 <0.5 <0.5 27 1.6
<br /> 612411998 NP 8.06 - -5.20 -2.03 <50 -0.5 <0.6 <0.5 <0.5 <5 1.5
<br /> 911011998 NP 9.78 -- -6.92 -1.72 <50 <O.5 <A <0.5 <0,5 <5 _
<br /> 1 211 711 9 9 8 NP 9-85 - -6.99 -0.07 <50 -0.5 <0,5 <0.5 <0,5 <5 _
<br /> 3/10/1999 NP 7.62 = 4.76 2.23 <50 <0.5 <0,5 <D.5 <0.5 <5 2.8
<br /> 8/22/1999 NP 9.63 -6,77 -2,01 <50 <0.5 <0.5 <0.5 <0.5 <5 3.8
<br /> 9/1311999 NP 11.29 -- -8,43 -1.66 <50 <0 5 <0.5 <0-5 <0.5 <5 2.1
<br /> 12!1611999 NP 1121 - -8.35 0.08 <50 <0,5 <0.5 <0.5 <0.5 2,59 _
<br /> 312312000 NP 6.52 - -3.66 4.69 <50 <0.5 <0.5 <0.5 <0.5 <2.5 3.5
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