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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 Matt Taylor BTEX Analyzed 02-06-96 <br /> WALLACE-KUHL & ASSOCIATES Matrix Water <br /> 3050 Industrial Blvd <br /> West Sacramento CA 95691 <br /> Project 293803 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes <br /> PPB PPB PPB PPB <br /> Reporting Lirrut 0 5 0 5 0 5 0 5 <br /> QA/QC PARAMETER <br /> Matrix Blank ND ND ND ND <br /> PERCENT RECOVERIES <br /> Matrix Spike 92% 94% 94% 95% <br /> Matrix Spike 95% 96% 97% 98%a <br /> Duplicate <br /> pph=parts per billion=ug/L=nna.mgram per liter <br /> ND =Not detected Compound(s)may be present at concentrations below the reporting limit <br /> All surrogate recoveries were within 30r%of target values <br /> Spikes&Spike Duplicates were each spiked with 250 ng BTEX Standard <br /> ANALYTICAL PROCEDURES <br /> BTEX Benzene toluene ethvlbenzene and total rvlene isomers tBTE` )are measured bN ectmcttan using EPA`lethod 5030 lollowed by anaivss <br /> ustne EPA Method 602 which unlizes a gas chromatograph(GCT equipped with a phototonizanon detector(PIDI <br /> <6r,"_ 02-12-96 <br /> abor tory Representative Date Reported <br /> I i <br /> E'<CFLCHE\t ENVIRONMENTAL LA135 15 CERTIFIED 8Y THE STATE OF CALIFORNIA <br /> DFPARTNIENT OF HEALTH SERVICES A5 A HAZARDOUS WASTE TESTING L 1130RATORY <br /> tCerr:ficahon No I-501 <br />