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E CELCHEM <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. John Juhrend BTEX Analyzed: 05-12-95 <br />' GEOCON Matrix: Soil <br /> 3235 Sunrise Blvd. , #6 <br /> Rancho Cordova, CA 95742 <br /> Project: S8100-06-11A <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes <br /> PPM PPM PPM REN, <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 100% 100% 102% 102% <br /> Matrix Spike 91% 92% 92% 93% <br /> Duplicate <br /> ppm : parts par million + mq/Kq - milligram per kilogram <br /> ND Not detected Compound(&) may be present at concentrations below the roportinq 11nit <br />' '1ik�oga eerecoveries were within 30! of target value=. <br /> p p Duplieates were each spilled with 250 xbq VrEX standard <br /> ANALYTICAL PROCEDORKS <br /> BTAX-- Benzene, toluene, etbylbenaene, and total xylene isomers (STEX) are measured by extraction using EPA <br /> t <br /> Mehod 5030 followed by analysis using EPA Method 8924 whiob utilises a gee chromatograph (GC) -quipped with <br />' a photoionl2atlon detector (AID) <br /> 3%' 05-15-95___ <br /> L bo atony Representative Date Reported <br /> EXCELCHEN ENVIRONMENTAL LABS IS CERTIFIED BY THE STATE of CALIPORMIA <br /> PEPARTMMM OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br />' (Certification No 1760) <br />