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EXCELCHEM <br /> ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 <br /> Roseville, CA 95678 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> OA/OC REPORT <br /> Attention Mr Vic Cherven Date Analyzed 08-16-96 <br /> Upgradient Environmental Matrix Water <br /> 1017 26th Street <br /> Sacramento, CA 95816 <br /> Project 96008/Gillies Trucking <br /> Ethyl- Total <br /> MTBE Benzene Toluene benzene Xylenes <br /> PPB PPB PPB PPB PPB <br /> Reporting Limit 05 05 05 05 05 <br /> QA/QC PARAMETER <br /> Matnx Blank ND ND ND ND ND <br /> PERCENT RECOVERIES <br /> Laboratory Control Spike 111% 90% 89% 88% 88% <br /> Laboratory Control Spike 118% 91% 90% 90% 90% <br /> Duplicate <br /> ppb=pasts per billion=ug/L=microgram per 1 ter <br /> IND =Prot detected Compound(s)mey be present at concentrations below the reporting limit <br /> Ali surrogate recoveries were within 30%of target values. <br /> Spikes&Spike Duplicates were each spiked with 250 ng BTE_\standard <br /> Spikes&Spike Duplicates were each aptked with 250 ng MTBE standard <br /> ANALWICAL PROCEDURES <br /> BTEA—Benzene toluent.,ethylbenzene,and total xylene isomers(BTI:\)are measured by extraction using EPA Method 5030 followed by analysis <br /> using EPA Method 602 which utilizes a gas chromatograph(GC)equipped with a photoiomzauon detector(PID) <br /> MTBE (Methyl Tett-Butyl Ether)-MTBE Is analyzed by EPA Method 602 which utih7es a gas chromatograph (GC) equipped with a <br /> photoiom7ation detector(PID) <br /> 08-19-96 <br /> (Lab ratory Representative Date Reported <br /> EaCELCHEM ENVIRONMENTAL LABS 15 CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (CeAification No 1760) <br /> 2 <br />