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40-ge 3 of 16
<br /> Table 1
<br /> Groundwater Elevation and Analytical data
<br /> ARCO Service Station#2093
<br />�4
<br /> 3425 Tracy Blvd.,Tracy,CA
<br /> Well Depth Groundwater Groundwater Product Ethyl- Xylenes
<br /> Well Date Elevation to Water Elevation Elevation Thickness TPHg Benzene Toluene benzene (total) MtBE DO
<br /> Number Sampled ft,MSL (ft,TOG ft,MSL Change ft ft (UUA-) (Ug/L u /L (ug/L u A- u m /L
<br /> ATR-2 7/18/1996 12.10 37.12 -0.20 - <50 <0.5 <0.5 <0.5 <0,5 500 -
<br /> (cord.) 11/15/19% 12.70 36.52 -0,60 - <50 <0.5 <0.5 <0.5 <0.5 750 -
<br /> 3/14/1997 P 12.70 36.52 0.00 - <50 <0.5 <0,5 <0.5 <0.5 280 0.08
<br /> 6/4/1997 NP 12.02 37.20 0,68 - <50 0.64 <0.5 <0.5 <0.5 480 0.06
<br /> 8/11/1997 P 12.33 36.89 -0.31 <50 <0.5 <0.5 <0.5 <0.5 440
<br /> 11/17/1997 P 12.26 36.96 0.07 - <50 <0.5 <0.5 <0,5 <0.5 98
<br /> 3/30/1998 NP 11.82 37.40 0.44 -- <50 <0.5 <0.5 <0.5 <0.5 18120' 1,2
<br /> 6/25/1998 NP 12.05 37.17 •0.23 <50 <0.5 <0.5 <0.5 <0.5 109 1.6
<br /> 9/11/1998 NP 12.12 37.10 -0.07 <50 <0.5 <0.5 <0.5 <0,5 250 1.67
<br /> 12115/1998 NP 12.01 37.21 0.11 <50 <0.5 <0.5 <0.5 <0.5 <5.0 1.5
<br /> 3/17/1999 NP 11.65 37.57 0.36 <50 <0.5 <0.5 <0.5 <0.5 <5.0 2.3
<br /> 5/14/1999 NP 12.05 37.17 -0.40 - <50 <0.5 <0.5 <0.5 <0.5 <5.0 1.90
<br /> 9/16/1999 NP 12.23 36,99 -0.18 <50 <0.5 <0.5 <0.5 <0.5 <5.0 3.7
<br /> 1 2122/1 999 NP 12.14 37.08 0.09 <50 <0.5 <0.5 <0.5 <0.5 <2.50 7.43
<br /> 2/29/2000 NP 11.50 37.72 0.64 <50 <0.5 <0.5 <0.5 <0.5 4.83 5.1
<br /> 6!7/2000 NP 12,11 37.11 -0.61 <50 <0.5 <0.5 <0.5 <0.5 126 -
<br /> 9/25/2000 NP 12.11 37.11 0.00 - <50 <0.5 <0,5 <0.5 <0.5 141 0.30
<br /> 12/29/2000 P 12.03 37.19 0.08 - <50.0 <0.500 <0.500 <0.500 <0,500 89' 5.6
<br /> 3/27/2001 P 11.92 37.30 0.11 - <50.0 <0.500 <0,500 <0.500 <0.500 37.2" 4.1
<br /> 6!20/2001 P 12.03 37.19 -0.11 - <50 <0.50 <0.50 <0.50 <0.50 %.
<br /> 9/12/2001 P 12.18 37.04 -0.15 <500 <5.0 <5,0 <5.0 <5.0 500 2.9
<br /> 12/1912001 P 11.97 37.25 0.21 - <500 <5.0 <5.0 <5.0 <5.0 250' 0.82
<br /> 3/14/2002 P 12.00 37.22 -0.03 <500 <5.0 <5,0 <5.0 <5,0 98" 0.82
<br /> 6/28/2002 P 12.12 37.10 -0.12 - 170 <0.5 <0.5 <0.5 <0.5 300" 1.5
<br /> 9/11/2002 P 12.10 37.12 0.02 54 <0,5 <0.5 <0.5 <0.5 110' 1.9
<br /> 12117/2002 p 11.44 37.78 0.66 -- <50 <0.5 <0.5 <0.5 4.5 16' 1.4
<br /> ATR-3 4/23/1987 49.93 11.79 38,14 -- - 17,000 2,300 180 <5.0 2,300 -- -
<br /> 12/22/1987 11.93 38,00 -0.14 -- 5,000 50 530 250
<br /> 3/24/1988 12,58 37.35 -0.65 43,000 8,300 8,700 4,400 7,800 -
<br /> 6/23/1988 11.17 38.76 1.41 70,000 6,160 4,221 1,800 4,750
<br /> 9/29/1988 12,23 37.70 4,06 57,400 8,850 17,600 2,190 8,170 -
<br /> 2/22/1989 11.82 38.11 0.41 - 110,000 1,000 2,100 480 2,000 - »
<br /> 6/29/1989 -- - -- - 4,500 890 520 250 1,100 -
<br /> 9/18/1989 12.19 $7.74 -- -- 7,400 1,900 1,300 460 2,200 -
<br /> 12/28/1989 12.01 37.92 0.16 - 27,000 840 1,400 840 5,600
<br /> 4/18/1990 12.15 37,78 -0.14 -- 4,800 1,000 490 340 1,500 - -
<br /> 10/16/1990 12.35 37,58 -0.20 14,000 1,900 1,300 760 4,600 -
<br /> 10/19/1990 12.28 37.65 0.07 - - _
<br /> 1/10/1991 12.01 37.92 0.27 2,600 610 230 160 670 -
<br /> 4/10/199t 11.82 38.11 0,19 - 3,000 910 120 110 190 -
<br /> 7/10A99t 12.23 $7.70 441 -- 19,000 420 300 340 760 -
<br /> 9/24/1991 12.57 37.36 -0.34 -- 2,000 280 81 69 130 - -
<br /> j 1/23/1992 12.12 37.81 0.45 sheen -- - - _ _
<br /> 4/20/1992 11.93 38.00 0.19 sheen -
<br /> 7/8/1992 12.22 37.71 -0.29 sheen --
<br /> 10/7/1992 12.38 37.55 -0.16 sheen -
<br /> 1/18/1993 11.22 38.71 1.16 sheen -
<br /> 4114/1993 11.49 38.44 -0.27 sheen -
<br /> K:U58P.WCCAOM34Qo WtA4 QTR aZTable 1_2,3a4a
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