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�1 <br /> ir <br /> 1 <br /> SIERRA <br /> Table 2 Analytic Results for Ground Water - Chevron Service Station #9-6171, 5633 Pacific Avenue, Stockton, California (continued) <br /> EXPLANATION ANALYTIC LABORATORIES <br /> TPPH(G)=Total Purgeable Petroleum Hydrocarbons as Gasoline SEQ=Sequoia Analytical Laboratory of Redwood City, California <br /> TOG =Total Oil and Grease GTEL=Groundwater Technology, Inc, of Sacramento,California <br /> B = Benzene SAL =Superior Analytical Laboratory of Martinez, California <br /> T=Toluene <br /> E = Ethylben7ene NOTES <br /> X=Xylc.ncs <br /> EDB = Ethylene dibromide t This well was dry <br /> I'C = Fecal coliform bacteria ' Typical gasoline pattern not present Peak at 7 2 minutes subtracted from gasoline range before <br /> = Not analysed/not applicable calculating gasoline concentration <br /> DHS=Department of Health Services •' Non-gasoline components which were not identified by the laboratory present in sample at 150 <br /> MCLS=Maximum Contaminant Levels ppb, 11/29/90 Non-gasoline components which were not identified by the laboratory present in <br /> BALs = Recommended Action Levels sample at 300 ppb, 3/14/91 <br /> NE = Not established Gasoline range concentration reported Peaks not associated with gasoline are observed early in <br /> the chromatogram <br /> ANALYTIC METHODS 2 Gasoline range concentration reported The chromatogram shows only a single peak <br /> S Both gasoline and a single solvent peak are observed in the chromatogram <br /> 8015=EPA Mcthod 5030/8015 for TPI']l(G) ° Both gasoline and multiple solvent peaks were observed in the chromatogram <br /> 602 = EPA Method 602 for 131 EX 5 EkAh gasoline and a single solvent peak (chiorinatcd)we.ne_observed in the chromatogram <br /> 8020= EPA Method 8020 for I3 FEX s Gasoline range concentration mported, peaks are rc presentative of tetrachloroethene and trace <br /> 504 =EPA Mcthod 504 for EDB amount of gasoline <br /> 503E=Standard Methods Method 503E for TOG <br /> 910=EPA Method 910 for Fecal coliform bacteria <br /> 14604T GW <br />