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WELL CONCENTRATIONS
<br /> Shell-branded Service Station
<br /> 341 East Main Street
<br /> Ripon, CA
<br /> Wic #204-6522-0307
<br /> I Depth
<br /> MTBE I MTBE to . Depth GW SPH DO
<br /> Well ID Date TPPH TEPH B T E X 8020 ! 8260 TOC Water to SPH ! Elevation Thickness Reading
<br /> (ug/L u IL (ug/L (ug/L (u IL) (u l (uglL) (ug/L MSL (ft.) (ft.) I (MSL) ft. I (Ppm)
<br /> EW-1 719199 <10,000 NA <100 <100 <100 <100 74,400 94,600 64.24 29.81 NA 34.43 NA 2.6
<br /> EW-1 7112199 55.0 NA <0.500 <0.500 <0.500 <0.500 72,100 87,000 64.24 29.87 NA 34.37 NA 2.6
<br /> EW-1 7122199 <50.0 NA <0.500 <0.500 <0.500 <0.500 84,000 103,000 64.24 30.10 NA 34.14 NA 2.1
<br /> EW-1 7128199 <20,000 NA <200 <200 <200 <200 107,000 90,000 64.24 30.41 NA 33.83 NA 1.2
<br /> EW-1 815199 195 NA 14.0 4.40 2.70 10.6 112,000 121,000"' 64.24 30.29 NA 33.95 NA 1.0
<br /> EW-1 8111199 <2,500 NA <25.0 <25.0 <25.0 <25.0 148,000 157,000 64.24 30.35 NA 33.89 NA 2.1
<br /> EW-1 8118199 149 NA 13.1 0.842 <0.500 2.70 146,000 440,000 64.24 30.73 NA 33.51 NA 2.5
<br /> EW-1 1 8/27199 210 NA <1.00 <1.00 <1.00 <1.00 174,000 187,000'* 64.24 30.09 NA 34.15 NA 2.8
<br /> EW-1 919199 <10,000 NA <100 <100 <100 <100 147,000 192,000 64.24 28.10 NA 36.14 NA 1.9
<br /> EW-1 9113199 <500 NA 13.2 <5.00 <5.00 <5.00 110,000 127,000 64.24 27.41 NA 36.83 NA 2.4
<br /> EW-1 9122199 <1,250 NA 15.9 <12.5 <12.5 <12.5 95,800 99,800 64.24 30.11 NA 34.13 NA 0.49
<br /> EW-1 9129199 <1,000 NA 15.9 <10.0 <10.0 <10.0 110,000 114,000 64.24 29.94 NA 34.30 NA 0.9
<br /> EW-1 1017199 75.9 NA <0.500 <0.500 <0.500 <0.500 65,700 92,000 64.24 30.05 NA 34.19 NA 0.7
<br /> EW-1 10/13/99 <10,000 NA <100 <100 <100 <100 68,900 225,000 64.24 30.00 NA 34.24 NA 2.0
<br /> EW-1 10/19/99 <10,000 NA <100 <100 <100 <100 144,000 117,000 64.24 29.81 NA 34.43 NA 1.2
<br /> EW-1 10/27/99 1,940 NA 16.5 167 1 47.2 337 b 84,000 64.24 29.83 NA 34.41 NA 2.5
<br /> EW-1 1112199 1,710 NA 23.0 126 41.7 299 72,800 72,500 64.24 29.76 NA 34.48 NA 2.5
<br /> EW-1 1119199 144 NA <0.500 <0.500 <0.500 <0.500 78,200 99,700 64.24 29.67 NA 34.57 NA 2.1
<br /> EW-1 11/17/99 <50.0 NA <0.500 <0.500 <0.500 <0.500 120,000 91,600 64.24 30.04 NA 34.20 NA 2.1
<br /> EW-1 11/23/99 <5,000 NA <50 <50 <50 <50 58,000 94,000 64.24 29.42 NA 34.82 NA 3.3
<br /> EW-1 1213199 165 NA 8.05 13.7 1.93 16.5 1,230,000 111,000 64.24 29.70 NA 34.54 NA 2.3
<br /> j EW-1 1217199 <500 NA <5.00 <5.00 <5.00 <5.00 85,100 75,000 64.24 29.55 NA 34.69 NA 1.07
<br /> EW-1 12/15/99 <250 NA <2.50 <2.50 <2.50 <2.50 218,000 104,000 64.24 28.85 NA 35.39 NA 2.8
<br /> EW-1 12/22/99 64.3 NA <0.500 <0.500 <0.500 <0.500 114,000 141,000" 64.24 29.20 NA 35.04 NA 0.6
<br /> EW-1 12/29/99 <500 NA <15.0 <5.00 <5.00 <5.00 150,000 99,200 64.24 29.30 NA 34.94 NA 1.8
<br /> EW-1 116100 86.3 NA 0.792 <0.500 <0.500 <0.500 1 101,000 1 89,400 64.24 29.01 1 NA 35.23 NA 0.7
<br /> EW-1 1112100 <50,000 NA <500 <500 <500 1 <500 1 95,100 1 102,000 64.24 1 29.42 NA 34.82 NA 1.5
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