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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 /> QA jQC REPORT <br /> Attention Vic Chernen Date Analyzed 11-27-95 <br /> UPGRADIENT Matrix. Soil <br /> 3369 Kimberly Road <br /> Cameron Park, CA 95682 <br /> Project: 95044 / J&L Market <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes <br /> PPM PPM PPM PPM <br /> Reporting Lieut 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 94% 92% 90% 91% <br /> Matrix Spike 100% 98% 97% 97% <br /> Duplicate <br /> ppm = parts per million = mg/Kg = milligram per kilogram <br /> ND = Not detected Compound(s)may be present at concentrations below the reporting limit <br /> All surnogatc recoveries were within 3D%of target values <br /> spikes&spike Dupbcates were each spiked with 2So ng BTEX standard. <br /> ANALYTICAL PROCEDURES <br /> B'IEX—Benzene toluene,ethylbencene,and total xylene isomers(BTEX)are measured by extraction using EPA Method 5030 followed <br /> by analysts using EPA Method 8020 which utilizes a gas chromatograph (GC)equipped with a phototontzation detector(PID) <br /> 12-04-95 <br /> bo tory Representative Date Reported <br /> EXCELCHEM ENVIRONMENTAL WBS IS CERTIFIED BY THE STATE OF CAUFORNIA <br /> DEPARTMENTOF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No 17601 <br />