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Y <br /> 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 John Bower BTEX Analyzed 05-28-96 <br /> SECOR Matrix Water <br /> 1734 34th Street <br /> Sacramento, CA 95816-7004 <br /> Project Time Oil -Lockeford <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes <br /> PPB PPB PPB PPB <br /> Reporting Limit 0 5 0 5 05 05 <br />• QA/QC PARAMETER <br /> Matrix Blank ND ND ND ND <br /> PERCENT RECOVERIES <br /> Matrix Spike 89% 95% 98% 91% <br /> Matrix Spike 900/0 96% 103% 1000/0 <br /> Duplicate <br /> ppb=parts per billion=ug/L=microgram per liter <br /> ND =Not detected Compound(s)may be present at concentrations below the reporting limit <br /> All surrogate recoveries were within 30%of target values. <br /> Spikes&Spike Dupiicates were each spiked with 250 ng BTEX standard <br /> ANALYTICAL PROCEDURES <br /> BTEX--Benzene,toluene,ethylbcnzcae and total xylene isomers(BTEX)are nwasuned by ex1ractron using EPA Method 5030 followed by analyse <br /> using EPA Method 602 which utilizes a gas chromatograph(GC)equipped with a photoionrzation detector(PID) <br /> 05-30-96 <br /> *oryR�epr�men-ta�ttve Date Reported <br /> tENVHt0N EXTALLAM IS CER7HYTI-W-STATEMCALiFORNMA <br /> DFPARTNIMrOF HEALTH SMVtCES AS A HAZARDOUS WASTETESTTNG LABORATORY <br /> (C-erhfw&on Na 77M <br />