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t- <br /> Excelchem <br /> Environmental Labs <br /> 4946 waist Avenue, #38 <br /> North Highlands, CA 95660 ° <br /> (916)334--8661 <br /> QAJQC REPORT <br /> Attention Mr. Dave Diem BTEX Analyzed: 7-21-94 <br /> GEOCON <br /> 11333 Sunco Drive, Suite 100 <br /> Rancho Cordova, Ca. 95742 <br /> Project 58080-06-01C <br /> Matrix Soil <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 /> 1 PERCENT RECOVERIES <br /> Matrix Sptke 91% 91% 91% 93% <br /> Matrix Spike 90% 90% 91% 93% <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 surrvgnte regimen es were within 3096 of target value L <br /> Spikes at Spike Duphcatex wet each si„kod with 250 ng HUM standard. <br /> ANALYTICAL.PROCEDURES <br /> 1n1D[--I3en7enc,toluene,ethylbenzene,and total xylene isomers(BIEX)are measured by extraction using EPA Method 5430 foltowed <br /> by analysis using EPA Method 8020 which utilizes a gas chromatograph(GC)equipped month a photoiomzation detector(PID) <br /> L7-21-94 <br /> La ratory Representative Date Reported <br /> F-XCELC14EM ENVIRONMENTAL LABS IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT'OF I1EAL771 SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> ' (Certification No 1760) <br />