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EXCEL.CHEM <br /> iENVIRONMENTAL LABS ' <br /> 500 Giuseppe Court, Suite 9 <br /> i Roseville, CA 95678 <br /> Phone#: (916) 773.3664 Fax#: (916) 773-4784 <br /> i <br /> QA/OC REPORT <br /> iAttention: Mr. Noel Lerner Date Analyzed: 08-25-97 <br /> Helmick& Lemer, Inc. Matrix: Water <br /> 1620 Executive Court <br /> Sacramento, CA 95864 <br />' Project: 00814/Stagg H.S. <br />' Laboratory Control Spike Laboratory Control Spike Duplicate <br /> Compound % Recovery % Recover <br />' 1,2-Dibromoethane 111% 115% <br />' ppb=parts per billion=ug/L=microgram per liter. <br /> ND =Not detected. Compound(s)may be present at concentrations below the reporting litnit. <br />' ANALYTICAL PROCEDURES <br /> HV—Halogenated Volatiles are measured using EPA Method 624 which utilizes a purge and trap interfaced to a gas chromatograph(GC)equipped <br /> with a mass spectrometer. <br /> 09-02-97 <br /> bo atory Representative Date Reported <br /> 1 <br /> 1 . <br /> i <br /> 1 <br /> 1 EXCELCHEM ENVIRONMENTAL LABS 15 CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No.2119) <br /> 1 18 <br />