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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/ C REPORT <br /> Attention Vic Cherven BTEX Analyzed 07-12-96 <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 /> R_ eporting Linut 0 005 0 005 0 005 _ 0005 <br /> QA/QC PARAMETER <br /> Matrix Blank ND ND ND ND <br /> PERCENT RECOVERIES <br /> Matrix Spike 95% 96% 96% 97% <br /> Matrix Spike I00% 101% 102% 103% <br /> Duphcate <br /> ppm=parts per million a mglKg=mAltgram per kilogram T _ <br /> ND =Not detected. Compound(s)may be present at concentrations below the reporting lumt. <br /> All surrogate recoveries were within 30%of target values. <br /> Spikes&Spike Duplicates were each spiked with 250 ng BTF-X standard <br /> ANALYTICAL PROCEDURES <br /> BTEX—Benzene,toluene,ethylbenzene,and total xylene isomers(BTM are measured by extraction usmg EPA Method 5030 followed by analysts <br /> using EPA Method 8020 which utilizes a gas chromatograph(GC)equipped with a phototomzatton detector(PID) <br /> b— -A,.,- <br /> 07-15-96 <br /> o atory Representative Date Reported <br /> £KCELCHEM ENVIRONMENTAL LASS 1S CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESITNG LABORATORY <br /> (Certification No 1760) <br />