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EXCELCHEM <br /> 40 ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 <br /> Roseville, CA 95678 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> OA/QC REPORT <br /> Attention Vic Cherven TPHd Analyzed 07-01 -96 <br /> 1017 26th Street Matrix Water <br /> Sacramento, CA <br /> Project 96006/Valley Motors <br /> TPHd <br /> PPB <br /> Reporting Llmlt SQ <br /> QA/QC PARAMETER - - <br /> Matrix Blank ND <br /> PERCENT RECOVERIES <br /> Laboratory Control Spike 65% <br /> Laboratory Control Spike Duplicate 60% <br /> ppb=parts per billion-uglL=microgram per Lief <br /> ND=Not detected Compound(s)may be present at concentrations below the reporting Imut. <br /> Spikes&Spike Duplicates were each spiked with 5000 ug of diesel standard <br /> ANALYTICAL PROCEDURES <br /> TPHd—Total petroleum hydrocarbons as diesel(high boding points)are measured by extraction using EPA Method 3510,followed by modified EPA <br /> Method 8015 with direct sample miection into a GC equipped with an FID <br /> I <br /> I <br /> i <br /> 07-02-96 <br /> o Fato�r—yRepresentative 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 /> (Certdicatton Na 1760) <br />