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WELL CONCENTRATIONS
<br /> Shell-branded Service Station
<br /> 341 East Main Street
<br /> Ripon, California
<br /> Wic #204-6522-0307
<br /> MTBE MTBE Depth to Depth to GW SPH DO
<br /> Well ID Date TPPH TEPH 8 T E x 8020 8260 TOC Water SPH Elevation Thickness Reading
<br /> uglL} (uglt uglL} (uglL (uglL) (u IL) (ug/L) (ug/L) MSL (ft (ft} (MSL) (ft) { m}
<br /> MW-1 04/28/1,398 <100 NA <1 0 <1 0 <1 0 <1 0 92,000 150,000 NA 2532 NA NA NA 20
<br /> MW-1 07/28/1398 <50 NA <0 50 <0 50 <0 50 <0 50 5,200 160,000 NA 2700 NA NA NA 18
<br /> MW-1 10/07/1398 <1,000 NA <10 <10 <10 <10 130,000 130,000 NA 2736 NA NA NA 14
<br /> MW-1 11/10/1)98 <50 NA <0 50 <0 50 <0 50 <0 50 210 NA NA 27 15 NA NA NA 12
<br /> MW-1 11/18/1398 <500 NA <5 0 <5 0 1 <50 <50 3,300 1 NA NA 2711 NA NA NA 13
<br /> MW-1 11124/1398 <10,000 NA <100 <100 1 <100 <100 130,000 130,000 NA 2727 NA NA NA 12
<br /> MW-1 12/01/1398 <50,000 NA <500 <500 <500 <500 138,000 155,000 NA 2700 NA NA NA 11
<br /> MW-1 12/08/1998 <10,000 NA <100 160 <100 <100 130,000 130,000 NA 2745 NA NA NA 13
<br /> MW-1 12/17/1398 <20,000 NA <200 <200 <200 <200 190,000 160,000 NA 2737 NA NA NA NA
<br /> MW-1 12/2311998 <10,000 NA <100 <100 <100 <100 100,000 69,000 NA 2742 NA NA NA 14
<br /> MW-1 12/29/1998 <50,000 NA <500 <500 <500 <500 139,000 127,000 NA 2722 NA NA NA 12
<br /> MW-1 01/06/1999 <50 0 NA <0 500 <0 500 <0 500 <0 500 145 NA 2735 NA NA NA NA
<br /> MW-1 01/14/1999 <10000 NA <100 <100 <100 <100 88,100 86,700" NA 2738 NA NA NA 17
<br /> MW-1 01/19/1999 <50000 NA <500 <500 <500 <500 152,000 156,000 NA 2731 NA NA NA 09
<br /> MW-1 01/28/1999 <25000 NA <250 <250 <250 <250 133,000 149,000 NA 2734 NA NA NA 11
<br /> MW-1 02/02/1999 <50 NA <0 50 <0 50 <0 50 <0 50 85,000 92,000 NA 2776 NA NA NA 13
<br /> MW-1 02/11/1999 <1000 NA <10 <10 <10 <10 180,000 NA 2720 NA NA NA 15
<br /> MW-1 02/18/1999 <20000 NA <200 <200 <200 330 140,000 110,000 NA 2710 NA NA NA 21
<br /> MW-1 02/24/1999 <2000 NA <20 <20 <20 <20 150,000 160,000 NA 2692 NA NA NA . ..14
<br /> g -<2UUU NA <Zi C C e,20 0 1500,0001145,MU
<br /> Abbreviations
<br /> TPPH=Total petrol num hydrocarbons as gasoline by modified EPA Method 8015
<br /> F TEPH=Total petrol num hydrocarbons as diesel by modified EPA Method 8015
<br /> BTEX=benzene,tcluene,ethyibenzene,xylenes by EPA Method 8020
<br /> MTBE=methyl-tertiary-butyl ether
<br /> TOC=Top of Casing Elevation
<br /> SPH = Separate-Phase Hydrocarbons
<br /> GW=Groundwater
<br /> DO=Dissolved Oxygen
<br /> ug/L= parts per bill13 n
<br /> Pagel
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