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EXCELCHEM <br />' ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 0 <br /> Roseville, CA 95678 s� <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> OA/OC REPORT <br /> Attention Mr Vic Cherven TPHd Analyzed 08-14-96 <br /> Upgradlent Environmental Matrix Water <br /> 1017 26th Street <br /> Sacramento, CA 95816 <br /> Project 96021/Teresi Trucking <br /> TPHd <br /> PPB <br /> Reporting Limit 50 <br /> QA/QC PARAMETER <br /> Matrix Blank ND <br /> . PERCENT RECOVERIES <br /> Laboratory Control Spike 64% <br /> Laboratory Control Spike Duplicate 70% <br /> I ppb=parts per billion=ug1L=microgram per liter <br /> ND=Not detested Compound(s)maybe present at concentrations below the reporting limit <br /> Spikes&Spike Duplicates were each spiked with 5000 ug of dlesel standard <br /> ANALYTICAL PROCEDURES <br /> TPHd--Total petroleum hydrocarbons as diesel(high boiling points)are measured by exiractlon using EPA Method 3510,foilowed by modified EPA <br /> Method 8015 with direct sample infection into a GC equipped with an FID <br /> 08-15-96 <br /> ratoryepresentative Date Reported <br /> 01 <br /> 1 <br /> E%CELCHEM ENVIRONMENTAL MBS 15 CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification Na 1760) <br /> I` 3 <br />