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!1 <br /> SIERRA <br /> Table 2 Analytic Results for Ground Water - Chevron Service Station #9-0959, 103 West i lth Street, Tracy, California <br /> Well Date Analytic Analytic TPPH(G) B T E X <br /> IDSampled Lab Method <---------------------------------------------ppb--------------------------------------> <br /> MW-1 12/14/92 SPA 8015/8020 2,400 <0 5 16 65 18 <br /> 3/23/93 GTEL 8015/8020 1,3001 2 8 3 19 <br /> MW-2 12/14/92 SPA 8015/8020 910 <0 5 15 46 12 <br /> 3/23/93 GTEL 801.5/8020 7501 <0 5 3 3 4 <br /> MW-3 12/14/92 SPA 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 3/23/93 GTEL 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> Tnp/Lab Blank <br /> TB-LB 3/23/93 GTEL 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> Bailer Blank <br /> BB 3/23/93 GTEL 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> EXPLANATION ANALYTIC LABORATORIES <br /> TPPH(G) =Total Purgeable Petroleum Hydrocarbons as Gasoline SPA= Superior Precision Analytical Inc , of Martinez California <br /> B=Benzene GTEL= Groundwater Technology Environmental Laboratories Inc <br /> T=Toluene of Concord California <br /> E=Ethylbenzene <br /> X=Xylenes NOTES <br /> ppb= Parts per billion <br /> = Not analyzed/Not applicable Analytic data prior to March 23, 1993 were compiled from the <br /> Environmental Assessment Report prepared for Chevron by <br /> ANALYTIC METHODS Groundwater Technology, Inc ,January 7 1993 <br /> Laboratory reports a hydrocarbon pattern not characteristic of fresh <br /> 8415=EPA Method 8015/5030 for TPPH(G) gasoline <br /> 8020=EPA Method 8020 for 13TEX <br /> 29904T GW <br />