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I <br /> tS rgero Analytical Laboratory Dmsion <br /> Mobile Laboratory Division <br /> TechnologyInc Scientific Dmslon <br /> With Automotlon in Mind <br /> 1 <br /> 8020 Modified Laboratory Control Spike (LCS) & <br />' Laboratory Control Spike Duplicate (LCSD) BTEX Analysis Report <br />' Attention Mr Bob Marty Date Sampled Oct 6, 1993 <br /> Geological Audit Date Received Oct 8, 1993 <br /> 1803 W March Lane, Suite A <br />' Stockton, CA 95207 <br /> Project ID Project Name Mid-Cal II <br />' Client ID LCS/LCSD LAB ID ST93-10-015 LCS <br /> ST93-10-015 LCSD <br />' Matrix Sail Dilution <br /> Cone Sample LCS LCSD LCS % LCSD % % RPD <br /> Name Spike Added Result Result Result Units Recovery Recovery Recovery <br /> Benzene 30 ppb ND 29 30 ug/kg 97% 100% 3% <br /> Toluene 30 ppb ND 29 30 ug/kg 97% 100% 3% <br /> Ethylbenzene 30 ppb ND 29 30 ug/kg 97% 100% 3% <br /> Xylenes 30 ppb ND 29 30 ug/kg 97% 100% 3% <br />' Surrogate % Recovery of Trifluorotoluene = 97% LCS 97% LCSD <br />' ppb = parts Per billion ug/kg = microorams per kilogram <br /> ppm= parts per million m uglo — micrograms per gram <br /> ND — Not Detected Compaund(s)may be present et concentrations below the detection lima <br /> Oct 15, 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 0 Sacramento California 95827 • (996) 362-8947 • FAX (996) 362-0947 <br />