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EXCELCHEiIII <br /> ENVIRONMENTAL LABS <br /> 21. _ <br /> 500 Giuseppe Count, Suite 9 0 <br /> Roseville, CA 95678 <br /> Phone#: (916) 773-3664 Fax#: (916) 773-4784 <br /> ANALYSIS REPORT <br /> Attention: Mr. John Bower Date Analyzed: 03-04-97 <br /> Secor Matrix: _ Water <br /> 1787 Tribute Road, Suite C <br /> Sacramento, CA 95815 <br /> Project : J0710-001-OVL00O2 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes <br /> PPB PPB PPB PPB <br /> Re rung Limit: 0.5 0.5 0.5 0.5 _. <br /> QA/QC PARAMETER <br /> Matrix Blank ND ND ND ND <br /> PERCENT RECOVERIES <br /> Matrix Spike 900/0 990/0 98% 990/0 <br /> Matrix Spike 104% 106% 105% 106% <br /> Duplicate <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 /> All surrogate recoveries were within 30%of target values. <br /> Spikes&Spike Duplicates were each spiked with 250 ng BTEX standard. <br /> ANALYTICAL PROCEDURES <br /> BTEX—Benzene,toluene,ethylbenzene,and total xylene isomers(BTEX)are measured by extraction using EPA Method 5030 followed by analysis <br /> using EPA Method 602 which utilizes a gas chromatograph(GC)equipped with a photoionization detector(PID). <br /> 03-05-97 <br /> La ratory Representative Date Reported <br /> Q1 <br /> EXCELCHEM Er-MRONMENt'AL LABS IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASI8TESTING LABORATORY <br /> (C.Aifw.U.n Na 1760) <br />