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r <br /> Page 2 of 3 <br /> SWger 0 Analytical Laboratory Divisio <br /> Inc. Mobile Laboratory Divisi*-Scientific Division <br /> Environmental Laboratones <br /> EPA Method 8020 <br /> Modified Laboratory Control Spike (LCS) & <br /> Laboratory Control Spike Duplicate (LCSD) BTEX Analysis Report <br /> Attention Kathleen Waldo Date Sampled Apr 22, 2002 <br /> IT Corporation Date Received Apr 23, 2002 <br /> 1326 North Market Blvd Date Analyzed Apr 23, 2002 <br /> Sacramento, CA 95834 Invoice# 14661APR2002 <br /> Project ID 8800391A/01030000 Project Name Don Rodgers <br /> Client ID LCS/LCSD 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 28 29 93% 97% 4% <br /> Toluene 30 ND 28 28 93% 93% 0% <br /> E=thylbenzene 30 ND 27 28 90% 93% 4% <br /> total-Xylenes 90 ND 82 83 91% 92% 1% <br /> mg/m3=milligrams per cubic meter <br /> ND=Not Detected Compound(s)may be present at concentrations beiow the detection limit <br /> Apr 23, 2002 -T <br /> R L Jaynes Principal Chemist Date Reported <br /> SPARGER TECHNOLOGY ANALYTICAL LABORATORY INC 1S CERTflED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No 1514) <br /> 3050 Fite <br /> Circle, Suite 112 Sacramento, California 95827 (916) 362-8947 0FAX (916) 362-0947 <br />