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EXCELCHEM <br /> ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 <br /> Roseville, CA 95678 14 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> OA/OC REPORT <br /> Attention Vic Cherven BTEX Analyzed 07-08-96 <br /> Upgradient Environmental Matrix Soil <br /> 1017 26th Street <br /> Sac, CA 95816 <br /> Project# 96006 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes <br /> PPM PPM PPM PPM <br /> Reporting Limit 0 005 0 005 0 005 0 005 <br /> QA/QC PARAMETER <br /> Matrix Blank ND ND ND ND <br /> PERCENT RECOVERIES <br /> Matrix Spike 95% 98% 101% 102% <br /> Matrix Spike 90% 92% 900/0 91% <br /> Duplicate <br /> ppm—parts per rmillon—mg/Kg-milligram per kilogram <br /> ND =Not detected. Compound(s)may be pr a mm at concentrations below the reporting lumt. <br /> All surrogate recoveries were within 30%of target values <br /> Spikes&Spike Duplicated were each spiked with 250 ng BTEX standard <br /> ANIALYTICAL PROCEDURES <br /> BTEX—Benzene,toluene,ethylben=m,and total xylene tsomers(BTEX)are measured by extraction using EPA Method 3030 followed by analysis <br /> using EPA Method 8020 which utilizes a gas chromatograph(GC)equipped with a phototonizatlon detector(PID) <br /> —"L , sz��— 07-09-96 <br /> bo tory Representative Date Reported <br /> EXCELCHEM ENVIRONMENTAL LABS 1S CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES ASA HAZARDOUS WAMTESTING LABORATORY <br /> (Catficahon No 1760) <br />