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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 /> OA/()C REPORT <br /> Attention: Mr. Noel Lerner Date Analyzed: 08-25-97 <br /> Helmick&Lerner, Inc. Matrix: Soil <br /> 1620 Executive Court <br /> Sacramento, CA 95864 <br /> Project: 00814/Stagg H.S. <br /> Matrix Spike Matrix Spike Duplicate <br /> Compound % Recovery % Recovery <br />' 1,2-Dibromoethane 116% 119% <br /> ppm=Parts per million=mg/kg=milligrams per kilogram <br /> ND =Not detected. Compound(s)may be present at concentrations below the reporting limit. <br />' ANALYTICAL PROCEDURES <br /> I-IV—Halogenated Volatiles are measured first by extraction(EPA method 5030)then by using EPA Method 8240 which utilizes a purge and trap <br /> interfaced to a gas chromatograph(GC)equipped with a mass spectrometer. <br /> 1 <br />' 09-02-97 ' <br /> a ratory Representative Date Reported <br /> I <br />' EXCELCHEM ENVIRONMENTAL LABS IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No.2119) <br />' 15 <br />