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lie <br /> EXCELCHEM <br /> ENVIRONMENTAL LABS <br /> s� <br /> I500 Giuseppe Court, Suite 9 0 <br /> Roseville, CA 95678 <br /> Phone#: (916) 773-3664 Fax# (916) 773-4784 <br /> I <br /> O&DC REPORT <br />' Attention Mr Vic Cherven BTEX Analyzed 08-12-96 <br /> Upgradi<ent Environmental Matrix Water <br /> 1017 26th Street <br /> Sacramento, CA 95816 <br /> Project 96021/reresi Trucking <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes <br /> PPB PPB PPB PPB <br /> Reporting Limit _ 05 05 0 5 0 5 <br /> QA/QC PARAMETER .. _..•._ <br /> • <br /> Matrix Blank ND ND ND ND <br /> PERCENT RECOVERIES <br /> Matrix Spike 88% 90% 91% 91% <br /> Matrix Spike 86% 88% 900/0 89% <br /> Duplicate <br /> ppb=parts per billion=uglL=rrucrogram per liter <br /> ND =Not detected. Compound(s)may be present at concentrations below the reporting limit <br /> All surrogate recoveries were within 30%of target values. <br /> Spikes&Spills Duplicates were each spiked with 250 ng BTEX standard <br /> I ANALYTICAL PROCEDURES <br /> BTEX—Benzene,toluene,ethylbenzene,and total xylene Isomers(BTEX)are measured by extraction using EPA Method 5030 followed by analysis <br /> using EPA Method 602 which utilizes a gas chromatograph(GC)equipped with a photolonization detector(PID) <br /> 08-15-96 <br /> atory <br /> E Representative Date Reported <br /> EXCELCHEM ENVIRONMENTAL LABS IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certdicatwn Na 1760) <br /> 2 <br />