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i <br /> pargerAnalytical Laboratory Division <br /> Mobile Laboratory Dmsion <br /> TechnologyInc Scientific Division <br /> S� 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 /> Project ID Project Name Mid-Cal II <br /> Client ID MS/MSD LAB ID ST93-09-024 MS <br /> ST93-09-024 MSD <br /> Matrix Soil Dilution <br /> Conc Sample MS MSD MS % MSD % % RPD <br /> Name 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 /> Etnylbenzene 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 Trifluorotoluene = 100% MS 100% MSD <br /> ppb = parts per billion ug/kg o micrograms per kilogram <br /> ppm= parts per million = uglg = micrograms per gram <br /> NO — Not Detected Compovnd($}may be present at concentrations below the detection limit <br /> Sep 24, 1993 <br /> R L James, Principal Chemist DATE <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 /> (CartiGcauon N o 16141 <br /> 0 <br /> 3050 Fite Circle Suite 112 o Sacramento California 95827 • (996) 362-8947 e FAX(996) 362-0947 <br />