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Page 1 of 1 <br />' <br /> Sparger 0 Analytical Laboratory Division <br /> Techrx*) Mobile Laboratory Division <br /> y,Inc Scientific Division <br /> Enwronmental Laboratories <br /> EPA Method 8020 <br /> Modified Laboratory Control Spike (LCS) & <br /> Laboratory Control Spike Duplicate (LCSD) BTEX Analysis Report <br /> Attention David Herzog Date Sampled Jul 1, 2002 <br /> Shaw E&I Date Received Jul 1, 2002 <br /> 1326 North Market Boulevard Date Analyzed Jul 2, 2002 <br /> 1 Sacramento, CA 95834 Invoice# 14886JUL02 <br /> Don Rogers <br /> Project 1D 8800391A Project Name Don Rogers <br />' Client ID LCS/LCSD LAB ID QC - BATCH <br /> Matrix Air Volume 5 ml <br /> units = mglm3 <br /> Spike Sample LCS LCSD LCS % LCSD % % RPD <br /> Name Added Conc Result Result Recovery Recovery Recovery <br />' Benzene 30 ND 31 31 103% 103% 0% <br /> Toluene 30 ND 31 31 103% 103% 0% <br /> Ethylbenzene 30 ND 32 32 106% 106% 0% <br />' total-Xylenes 90 ND 87 87 97% 97% 0% <br />' mg1m3=milligrams per cubic meter <br /> ND=Net Detected Compound(s)may be present at concentrations below the detection limit <br /> Ju12, 2002 <br /> R L James, Principal Chemist Date Reported <br /> SPARGER TECHNOLOGY ANALYTICAL LABORATORY INC IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Corttiscation No 1614) <br />' 3050 Fite Circle, Suite 112 • Sacramento California 95827 • 916 362-8947 • FAX 916 362-0947 <br />