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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 Elevatlon Elevation TPHg Benzene Toluene benzene {total) MtBE DO
<br /> Number Sampled (ft,MSL) (11,TOC) (ft) (ft,MSL) Change(n) (ug") (ug") (ugM (ug") iug+l) (Ug11) (m9lL)
<br /> E-5 8/2611988 2.45 - - - - - 2,690 390 270 570 - -
<br /> t 112811988 - - - - - 580 140 110 420 - -
<br /> 2/2711989 - - - -- - 1,770 200 200 1,400 - -
<br /> 573011989 - - - » - 2,430 36 260 1,670 - -
<br /> W211989 - - - » - 3,110 130 240 1,720 - -
<br /> 121411989 - - - -- - 600 40 120 1,030 - -
<br /> 1/4/1990 17.51 - -15.06 - _ - _ _ _
<br /> 211!1990 17.32 - -14.87 0.19 - - - -
<br /> 2115f1990 17.29 - -14.84 0.03 - - - -
<br /> 2122f1990 19.07 - -16.62 •1.78 - - - - -
<br /> 3/611990 17.03 - -14.58 2.04 - 272 39.4 97.8 532 - -
<br /> 47511990 17.31 - -14.66 -0.28 - - - - -
<br /> 4/19/1990 17.26 - -14.61 0.05 - - - - -
<br /> 5110/1990 17.65 - -15.20 -0.39 - - - - -
<br /> 512411990 17.61 - -15.16 0.04 - - - - -
<br /> 61511990 17.57 - -15.12 0.04 - - - - - _
<br /> 6/1911990 18.49 •- -16.04 -0.92 - 2,150 30 200 780 -- -
<br /> 7/1211990 18.37 - -15.92 0.12 - - - - -
<br /> 811611990 18.65 -- -16.20 -0.26 -
<br /> 911711990 19.01 - -16.56 -0.36 -
<br /> 9110/1990 19.01 - -16.56 0.00 30,000 7,400 21D 860 8,300 - -
<br /> 10/1111990 19.11 - -16.66 -0.10 - -
<br /> 121611990 18.95 - -16.50 0.16 -
<br /> 2/1411991 18-62 - -16.17 0.33 18,000 6,300 12D 560 4,300 -
<br /> 212511991 18.59 - -16,14 0.03 - - - - - -
<br /> 412311991 17.67 -1542 0.72 10,0D0 8,400 <D.50 270 680
<br /> 7115/1991 dry - - - - -
<br /> 1 01611 99 1 dry --
<br /> 1/2211992 1923, - -16.78 - - -
<br /> 4!2211992 16,31 - -15-86 0.92 28,000 4,300 130 560 1,700 - »
<br /> 712911992 19.60 - -17.15 -1.29 - -- - - _
<br /> 1 012 9/1 992 dry - - _ - _ - _
<br /> 1/2711993 16.90 - -14.45 - 26,000 4,000 110 470 800 - -
<br /> 4/29/1993 15.08 - -12.63 1.82 41,000 6,300 110 920 2,200 - -
<br /> 8/5/1993 19.80 - -14.35 -1.72 26,000 4,700 <50 560 560 - --
<br /> 11f1011993 17.19 - -14.74 -0.39 19,000 2,500 <50 380 690 -
<br /> 312111994 16-60 - -14.15 0.59 1310D0 1,700 40 300 650 -
<br /> 6127/1994 16.27 - •13.82 0.33 9,400 1,800 17 260 $20 - »
<br /> 912911994 17.23 - •14.78 -0.96 7,900 1.200 <20 200 330 - »
<br /> 12/8/1994 16.83 - -14.38 0.40 6,800 1,300 30 220 410
<br /> 3/811995 14.34 - -11M 2A9 39,000 3,000 <50 480 1,400 - »
<br /> 6!111995 12.75 - -10.30 1.59 2,300 6.9 Q.5 11 53 _
<br /> 9/1111995 14.75 - -12.30 -2.00 1,200 <3 4 6 14
<br /> 12/511995 15.41 -• -12.96 -0.66 - - - -- _
<br /> 311811996 9,60 - -7.15 5.81 150 0.59 <0.5 <0.5 0.65 _
<br /> 611811996 11.20 - -8.75 -1.60 - - - - .-
<br /> 912511996 13.12 -10,67 -1.92 <50 <0.5 <0.5 <0.5 <0,5 <5 -
<br /> 12/411996 12.65 -10.20 0.47 - - _ _ _
<br /> 311 911 99 7 NP 8.44 - -5-99 4.21 <50 <0.5 <0.5 <0.5 <D.5 - 7.8
<br /> 61511997 P 10,20 - -7.75 -1,76 - - - - _ _ 97
<br /> 8119/1997 NP 11,72 - •9.27 -1.52 <50 <0.5 <0.5 <0.5 <0.5 <5 7.3
<br /> 11/2511997 P 11,93 - •9.48 -0.21 - - _ -
<br /> 3/2011998 NP 5.61 - -3.16 6.32 1,200 5.7 2.6 1_4 1.3 <5 14.0
<br /> 6/24/1998 7.66 - -5.21 •2.05 - - - _ _ _ _
<br /> 9f1011996 NP 9.40 - -6.95 -1.74 <50 <0.5 <0.5 <0.5 <0.5 <5 ..
<br /> 1211711998 9.45 - -7.00 -0.05 -• - - -. _ _ -
<br /> 3/1011999 NP 7.27 - -4.82 2.18 <50 <0.5 .1
<br /> <0,5 <0.5 <0.5 <5 4
<br /> 672211999 9.22 -6.77 -1.95 3.1
<br /> 9/13/1999 NP 10.93 -8.40 -1.71 <50 <0.5 <0.5 <0.5 <0.5 <5 5.6
<br /> 12/1511999 10.82 - -8.37 0-11 - - - - - - 9.5
<br /> 3/23/2000 NP 6.12 - -3.67 4.70 <50 <0.5 <0.5 <0.5 <0.5 <2,50 4.7
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