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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 /> Wall pate Elevation to Water Thickness Elevation Elevation TPHg Banana Toluene benzene {total} MtBE 00
<br /> Number Sampled (ft,MSL) (ft,TOC) {ftJ (ft,MSL) Change(ft) (ug") (ug"ll (ugfi) (ug") (ug/1) 0911) (m91L)
<br /> E-4 2112/1991 10.46 - -16.15 0.34 3,200 750 9 73 270 - -
<br /> (cont) 2125/1991 16.43 - -16.10 0.05 - - - - _ _ _
<br /> 4123/1991 17.62 - -1529 0.81 - - - _ -
<br /> 7116t91 2030 - -17.97 -2.68 - - -
<br /> 10/811991 2010 - -18.57 -0.60 - - -
<br /> 1!2211992 1901 - -16,68 1.89 8.500 1,100 140 t0 220 - -
<br /> 4/2211992 18.05 - -15.72 0.96 6,300 730 12 110 200 - --
<br /> 7MI1992 19.63 - -17,30 •1.58 7,700 1,000 14 130 310 - -
<br /> 10129/1992 19.99 - -17.66 -0.36 5,600 1,300 16 130 180 - -
<br /> 1/27/1993 16.72 - -14,39 3.27 10,000 470 28 130 270 --
<br /> 4129l1993 14.94 -- -12,61 1.78 14,000 1,300 22 280 520 - --
<br /> 81511993 16.63 -- -14.30 -1,69 9,400 900 <20 160 240 -- _
<br /> 11110/1993 16.92 - -14.59 -0.29 4,400 290 <20 67 130 - -
<br /> 3/21/1994 16.39 -- -14.06 0.53 5,400 340 24 110 220 - -
<br /> 6l2711994 16.14 - -13.81 0.25 7,800 790 11 170 470 - -
<br /> 9129l1994 17,06 - -14.73 -0.92 1,600 130 <D.5 33 41 - -
<br /> 121871994 16.65 - -14.32 0.41 5,200 940 88 170 380 - --
<br /> 37811995 14.19 -- -11.66 2.46 7,900 490 5.6 130 190 - --
<br /> 61111995 12.74 - -10.41 1.45 15.000 1,000 10 360 380 - -
<br /> 911111995 14.96 - -12.63 -2.22 10.DOO 1,000 <10 350 320 -- -
<br /> 12f511995 15.23 - -12.90 -0.27 - - - .. __
<br /> 311811996 10.10 - -7.77 5.13 4,700 530 35 250 350 - -
<br /> 611611996 11.03 •• -8.70 •0.93 -- - - -- -
<br /> 912511996 13.47 - -11.14 -2.44 7,600 690 <10 380 190 <5 =
<br /> 121411996 12.94 -10.61 0.53
<br /> 311 911 997 NP 7.43 -5.10 5,51 1,600 120 6.4 38 <5 0.2
<br /> 6/5/1997 10,06 - -7.75 •2.65 - - - -- - - 0.1
<br /> 6/1911997 NP 11.57 - -9,24 -1.49 1,800 83 7.8 6.3 7.6 110 0.1
<br /> 11125/1997 P 11.27 - -8,94 0.30 - - •- - _ _ -
<br /> 311 911 99 6 NP 5.47 - -3.14 5.80 11D 3.6 <0.50 <0.50 <0.50 14 3.8
<br /> 6/14/1998 7.53 - -5.20 -2,06 - - _
<br /> 9110/1998 NP 9.20 - -6.87 -1.67 97.2 3.35 <0.50 <0.50 <0.50 8.15 -
<br /> 1211711998 9.29 - -6.96 -0.09 _ _ - _
<br /> 3/10/1999 NP 7.07 - -4.74 2.22 .50 <0.50 <0,50 <0.50 <0.50 <5.0 3,0
<br /> 612211999 9.02 - -6.69 -1.95 - - - - - - 0.6
<br /> 911311999 NP 10.77 - -8.44 -1.75 107 <0.50 <0,50 0.738 <0.50 6.53 2.3
<br /> 12/1511999 10.65 - -8.32 0.12 - - - - _ _ 1.1
<br /> 312312000 NP 5.97 - -3.64 4.68 <50 <0,50 <0,50 <0.50 <0.50 <2.50 1.7
<br /> 612112000 8.21 - -5.88 -2.24 - - - - - - 0.68
<br /> 911312000 NP 10.00 - -7.67 -1.79 <50 <0,50 <0-50 <0.50 <D.50 <2.50 1.50
<br /> 12/15/2000 9.48 - -7.15 0.52 - -- - _ _ - 0.71
<br /> 31172001 P 7,40 - -5.07 2.08 777 22.4 -6-OD 35.1 10.8 60.3 2.8
<br /> 5110/2001 7.51 - -5.10 -0.11 - - - - - - 2.5
<br /> 812012001 P 10.27 •• -7.94 -2.76 720 14 3.6 28 6.9 39 -
<br /> 127572001 9.41 - -7.08 086 - - - _ _ - -
<br /> 3711l2002 P 7.64 - •5.31 1.77 680 9.7 1.4 23 4.1 45 1.68
<br /> 61612002 8.60 - -627 -0.96 - - -- - - - 0.76
<br /> 9724/2002 P 1 D 43 - -8,10 -1.83 150' 0.64 1.2 <0.50 0.77 23 058
<br /> 12/17/2002 8-64 - -6,31 1.79 -- - - _ - - _
<br /> 371612003 P 8.58 - -6.25 0.06 <50 <0.50 <0.50 50.50 <0.50 <2.5 1.07
<br /> 611712003 8.84 - -6.5t -0.26 - -- - - - - 0.10
<br /> 912412003 P 10.60 - -8.27 -1.76 180 <0.50 <0.50 2.5 0.54 21 D.77
<br /> 12/18/2003 9.93 - -7.60 0.67 - _ _ -. _ - _
<br /> 311712004 P 7.60 -5.47 2.13 140.60 <0.51) <0.50 <0.50 <0.50 10A0 --
<br /> 612212004 9,60 -7.47 -2.00 - - - _ _ _
<br /> 9/21/2004 10.93 -8.60 -1.13 370 <0.50 <0.50 0.83 <0.50 13 -
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