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<br /> CA RIA
<br /> Table 1. Ground Water Analytical Data- Shell-branded Service Station- Incident#98995$74, 341 E. Main Street,Ripon,California
<br /> MTBE MTBE Dissolved Gallons
<br /> Depth to GW
<br /> Water Elevations TPHg Benzene Toluene Ethylbenzene Xylenes EPA 8020 EPA 8260 Methanol Omygej Removed
<br /> gU
<br /> Date (Feet) (feet) (Concentrations in b 01
<br /> MW-1 (TOi =63.94) ---
<br /> 04/28/98 X5.32 38.62 <100 <1.0 <1.0 <1.0 <1.0 92,000 150,000 20,000 2.0 ---
<br /> 07/28/98 x.7.00 36.94 <50 <0.50 <0.50 <D.50 <0.50 5,200 160,000 32,000 1.8
<br /> 10/07/98 27.36 36.58 <1,000 <10 <10 <10 <10 130,000 13--- 30-- 1-4 7.5
<br /> 11/10/98 :7.15 36.79 <50 <0.50 <0.50 <0.50 <0.50 2k0 --- --- 1.3 3.0
<br /> 11/18/98 :'7.1 k 36.83 <500 <5.0 <5.0 <5.0 <5.0 3,300 1.2 7.5
<br /> 11/24/98 27.27 36.67 <10,000 <100 <100 <1b00 <500 138,000 15<100 130,000 05,000 --- 1.1 9.5
<br /> Q <5
<br /> 12101!98 :?7.00 36.94 <50,000 <500 <50 ___ 1.3 6.0
<br /> 12/08/98 :?7.45 36.49 <10,000 <100 160 <100 <100 130,000 130,000 ---
<br /> - --- 3.0
<br /> 12/17/98 27.37 36.57 <20,000 <200 <200 <100 <200 190,000 160,000 -- 1.4 3.0
<br /> 12/23198 27.42 36.52 <10,000 <100 <100 <100 <100 100,000 69,000 --_ 1.2 3.0
<br /> 12/29/98 27.22 36.72 <50,000 <500 <500 <.50 <500 13145 k2--- --- ---
<br /> 01/06/99 27.35 36.59 <50 <0.500 <0.500 <0.500 <0.500 ,1 --- --- 1.7 3.0
<br /> 01/14/99 27.38 36.56 <10,000 <100 <100 <100 <100 88,100 86,700 7.5
<br /> <500 <500 <500 <500 152,000 156,000 95,000
<br /> 01/19/99 27.31 36.63 <50,000 000 0'9 9.5
<br /> 01/28 /99 27.34 36.60 <25,000 <250 <250 <250 <250 k33,000 149, 1.3 3.0
<br /> 02/02/99 27.76 36.18 <50 <0.50 <0.50 <0.50 <0.50 85,000 92,000 --- 15 16.5
<br /> <10 180,000 --- ---
<br /> 02/11l99 27.20 36.74 <1,000 <10 <10 <10 110,000 50,000 2.1 17.0
<br /> 02/18/99 27.10 36.84 <20,000 <200 <200 <200 330 --- --- 1.4 12.0
<br /> 02124!!99 26.92 37.02 <2,000 <20 <20 <20 <20 150,000 160,000 --- - --- 18.0
<br /> 03/02/99 26.42 37.52 <2,000 <20.0 <20.0 <20.0 <20.0 150,000 145,000 2.4 13.0 I
<br /> 03/11/99 26.14 37.8 <50,000 <500 <500 <500 <500 112,000 151,000 .410.0
<br /> 03119!99 26.15 37.79 <50.0 <0.500 <0.500 <0.500 <0.500 132,000 114,000 - 1.8 15.0
<br /> 03/22/99 27.56 36.38 <500 <5.00 8.09 <5.00 <5.00 113,000 81,800 1.6 11.0
<br /> 04/08/99 26.17 37.77 <50.0 <0.500 <0.500 <0.500 <0.500 9,780 13,000 --- 18 9.0
<br /> 04/14/99 26.85 37.09 <50.0 <0.500 <0.500 <0.500
<br /> 0 O� <0.500 30,100 35 900 29,000 2.1 11.0
<br /> 04/22/99 27.13 36.81 <1,000 <10.0 <10 24,100 --- 1.7 11.0
<br /> 04/29/99 26.08 37.86 <50 <0.50 <0.50 <0.50 <0.50 19,000 -- 1.5 20.0
<br /> 05/06/99 27.73 36.21 <500 <5.00 <5.00 <5.00 <5.00 64,500 104,000 --- --- 12.0
<br /> 05/13/99 26.21 37.73 <50.0 <0.500 <0.500 <0.500 <0.500 <5.00 ---
<br /> 2.1 3.0
<br /> 05/18/99 28.03 359 <200 70,000 94,000
<br /> 1 <20,000 <200 <200 <200 --- 1.0 5.5
<br /> 05/25/99 28.17 35.77 <5,000 <0.50 <0.50 <0.50 <0.50 111,000 138,000
<br /> I of 6
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