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r <br /> EXCELCHEM <br /> ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 0 <br /> Roseville, CA 95678 <br /> Phone#: (916) 773-3664 Fax#: (916) 773-4784 <br /> (2A/OC REPORT <br /> Attention: Mr. Noel Lerner Date Analyzed: 08-25-97 <br /> Helmick&Lerner, Inc. Matrix: Water <br /> 1620 Executive Court <br /> Sacramento, CA 95864 <br /> Project: 00814/Stagg H.S. <br /> I TPHd <br /> PPB <br /> _Reporting Limit: 50 <br />' QA/QC PARAMETER <br /> • Matrix Blank ND <br /> PERCENT RECOVERIES <br /> ILaboratory Control Spike 96% <br /> Laboratory Control Spike Duplicate 87% <br /> I <br /> ppb=parts per billion=ug/L=microgram per liter <br /> ND=Not detected. Compound(s)may be present at concentrations below the reporting limit. <br /> ISpikes&Spike Duplicates were each spiked with 5000 ug of diesel standard. <br /> ANALYTICAL PROCEDURES <br /> TPHd--Total petroleum hydrocarbons as diese[(high boiling points)are measured by extraction using EPA Method 3510,followed by modified EPA , <br /> Method 8015 with direct sample injection into a GC equipped with an FID. <br /> 09-02-97 <br /> ab ratoryresentative Date Reported <br /> EXCELCHEM ENVIRONMENTAL LABS IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESIING LABORATORY <br /> (Certification No.2119) <br /> 17 <br />