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EXCEL.CHEM <br /> ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 1 <br /> Roseville, CA 95678 4 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> OA/OC REPORT <br /> Attention Mr Vic Chervin Date Analyzed 10-04-96 <br /> Upgradient Matrix Water <br /> 336 Augusta Court <br /> Valley Springs, CA 95252 <br /> Project Gillies Trucking <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes <br /> PPB PPB PPB PPB <br /> Reporting Limit 0 5 0 5 05 0 5 <br /> QA/QC PARAMETER <br /> Matrix Blank ND ND ND ND <br /> PERCENT RECOVERIES <br /> Matrix Spike 114% 118% 118% 122% <br /> Matrix Spike 113% 117% 118% 122% <br /> Duplicate <br /> ppb=parts per billion=uglL=microgram per liter <br /> ND =Not detected Compound(s)may be present at concentrations below th,reporting limit <br /> Al[surrogate recoveries were within 30%of target values <br /> Spikes&Spike Duplicates were each spiked with 250 ng BTE\standard <br /> ANALYTICAL PROCEDURk S <br /> BTEA--Benzene toluene ethylbenz,ne and total aylane Isomers(I3TEN)arc,measured by extraction using EPA Method 5030 followed by anabsts <br /> using EPA Method 602 which utilizes a gas chromatograph(GC)equipped with a photolomzation ddector(PID) <br /> 10-04-96 <br /> aba atory Representative Date Reported <br /> EKCELCHEM ENVIRONMENTAL LABS IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMFNT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> ICerti6ca4rni No 17o01 <br />