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ISpargero Analytical Laboratory Division <br /> TechnologyInc Mobile Laboratory Dnnslon <br /> Scientific Division <br /> With Automation in Mind <br />' 8020 Modified Matrix Spike (MS) & Matrix Spike Duplicate (MSD) <br /> BTEX Analysis Report <br />' Attention Mr Bob Marty Date Sampled Sep 21, 1993 <br /> Geological Audit Date Received Sep 22, 1993 <br /> 1803 W March Lane, Suite A <br />' Stockton, CA 95207 <br /> Pro)ect ID Project Name Mid-Cal II <br />' Client ID MS/MSD LAB ID ST93-09-024 MS <br /> ST93-09-024 MSD <br />' Matrix Sod Dilution <br /> Conc Sample MS MSD MS % MSD % % RPD <br /> MName Spike Added Result Result Result Units Recovery Recovery Recovery <br /> Benzene 30 ppb ND 31 31 ug/kg 103% 103% 0% <br />' Toluene 30 ppb ND 30 31 ug/kg 100% 103% 3% <br /> Ethylbenzene 30 ppb ND 30 30 ug/kg 100% 100% 0% <br />' Xylenes 30 ppb ND 30 30 ug/kg 100% 100% 0% <br />' Surrogate % Recovery of Tnfluorotoluene = 100% MS 100% MSD <br />' ppb — parts per billion ug/kg — micrograms per kilogram <br /> ppm— parts per million — uglg —micrograms per gram <br /> NO - Not Detected Compoundis)may be present at concentrations balow the detection limit <br /> Sep 24, 1993 <br /> R L James, Principal Chemist DATE <br />' SPARGER TECHNOLOGY ANALYTICAL LABORATORY INC 1S 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 • (996) 362-8947 0 FAX (996) 362-0947 <br />