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Sparer Analytical Laboratory Drnslon <br /> g <br /> Mobile Laboratory Division <br /> Sclentrfic Dmslon <br /> With Automation in Mind <br /> 8020 Modified Laboratory Control Spike (LCS) & <br /> Laboratory Control Spike Duplicate (LCSD) BTEX-Analysis Report <br /> Attention Mr Bob Marty Date Sampled Sep 21, 1993 <br /> Geological Audit Date Received Sep 22, 1993 <br /> 1 803 W March Lane, Suite A <br /> Stockton, CA 95207 <br /> Project ID Project Name Mid-Cal 11 <br /> Client ID LCS/LCSD LAB ID ST93-09-024 LCS <br /> ST93-09-024 LCSD <br /> Matrix Soil Dilution <br /> Conc Sample LCS LCSD LCS % LCSD % % RPD <br /> Name Spike Added Result Result Result Units Recovery Recovery Recovery <br /> Benzene 30 ppb ND 30 31 ug/kg 100% 103% 3% <br /> Toluene 30 ppb ND 30 31 ug/kg 100% 103% 3% <br /> Ethylbenzene 30 ppb ND 30 31 ug/kg 100% 103% 3% <br /> Xylenes 30 ppb ND 30 31 ug/kg 100% 103% 3% <br /> Surrogate % Recovery of Trifluorotoluene = 100% LCS 103% LCSD <br /> ppb = parts per billion = uglkg = micrograms per kilogram <br /> ppm= parts per million uglg a micrograms per gram <br /> NO — Not Detected Compound(s)may be present at concentrations below the detection limit <br /> Sep 24, 1993 <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 o Sacramento Colifornio 95827 o (916) 362-8947 e FAX (916) 362-0947 <br />