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1 <br /> Sparger 0 Page1ofI <br /> Analytical Laboratory Division <br /> • <br /> TechrKkxjy, <br /> Mobile Laboratory Division <br /> Inc. Scientific Division <br /> Environmental Laboratories <br /> i <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 Aug 5, 2002 <br /> Shaw E&I Date Received Aug 5, 2002 <br /> 1326 North Market Boulevard Date Analyzed Aug 5, 2002 <br />' Sacramento, CA 95834 Invoice# 14992A0002 <br /> Project ID 8800391A/01020000 Project Name Don Rogers <br /> Client ID LCSILCSD LAB ID QC - BATCH <br />' Matrix Air Volume 5 ml <br /> units = Mg/M3 <br /> Spike Sample LCS LCSD LCS % LCSD % % RPD <br /> Name Added Conc Result Result Recovery Recovery Recovery <br /> Benzene 30 ND 32 31 107% 103% 3% <br /> Toluene 30 ND 32 31 107% 103% 3% <br /> Ethylbenzene 30 ND 33 31 110% 103% 6% <br /> total-Xylenes 90 ND 100 95 111% 106% 5% <br /> mg/m"=milligrams per cubic meter <br /> ND=Not Detected Ccmpound(s)may be present at concentrations below the detection limit <br /> Aug 5, 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 /> (Certification No 1614) <br /> 3050 Fite Circle, Suite 112 • Sacramento, California 95827 • 916) 362-8947 - FAX 916 362-0947 <br />