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• i <br /> EXCELCHEM <br /> ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 <br /> Roseville, CA 95678 14 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> QA/QC REPORT <br /> Attention Mr Vic Clierven TPHd Analyzed 02-15-96 <br /> UPGRADIENT Matiix Soil <br /> 1017 26th Street <br /> Saciarnento, CA 95816 <br /> Project# 960131 Teresi Trucking <br /> TPHd <br /> PPM <br /> Reporting Linut 10 <br /> QA/QC PARAMETER <br /> Matrix Blank ND <br /> PERCENT RECOVERIES <br /> Matrix Spike 68% <br /> Matrix Spike Duplicate 65% <br /> Laboratory Control Spike 65% <br /> Laboratory Control Spike Duplicate 69% <br /> ppm=plrts per million=mg/Kg=milligram per kilogram <br /> ND=NDt detected Compound(s)maybe present at concentrinons below the reporting limit <br /> Spikes&Spike Duplicates were each spiked with 5000 ug of diesel standard <br /> ANALV71CAL PROCEDURES <br /> TPHd--Total petroleum hydroLarbons as diesel(high boiling points)are measured by extraction using EPA Method 3550 followed by modified EPA <br /> Methal 5015 with direct sample injection into-t GC equipped with in FID <br /> 02-23-96 <br /> bor tory Representative Date Reported <br /> EXC ELCHENI ENV IRONNIENTAL LABS IS CERTIFIED BY 711E STATE OF CAL1rORNiA <br /> DE PAR rMENTOF HEALTH SER-ICES ASA HAZARDOUS WASTE TESTING LABORATORY <br /> (C,rldicalum Nu 1760) <br />