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Sparger Analytical Laboratory Division <br /> Mobile Laboratory Divislon <br /> Techno PScientific DivisionWith Automation in <br /> Y- <br /> 8020 Modified Matrix Spike (MS) & Matrix Spike Duplicate (MSD) <br /> BTEX Analysis Report <br /> Attention: Mr. Jim Hoblitzell Date Sampled: Feb 1 1994 <br /> Falcon Energy Date Received: Feb 5, 1994 <br /> P.O. Box 1257 <br /> Stockton, CA 95201 <br /> Project ID: 94-069 Project Name: 221-225 Miner Avenue <br /> Client ID: MS/MSD LAB ID: ST94-02-009 MS <br /> ST94-02-009 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 32 31 ug/kg 107% 103% 3%c <br /> Toluene 30 ppb ND 31 31 ug/kg 103% 103% 0% <br /> Ethylbenzene 30 ppb ND 32 31 ug/kg 107% 103%fl 3% <br /> Xylenes 30 ppb ND 31 31 ug/kg 103% 103% 0°/0 <br /> Surrogate % Recovery of Trifluorotoluene — 93% MS 97% MSD <br /> ppb= partsper billion. = ug/kg micrograms per kRcgram <br /> ppm- parts per mi ion = uglg a micrograms per gram <br /> NO - Not Detected. Compound(s)may be present at concentrations below the detection limit. <br /> Feb 14, 1994 <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 /> ICertilication No.1614y <br /> 3050 Fite Circle, Suite 112 • Sacramento, California 95827 • (996) 362-8947 • FAX(996) 362-0947 <br />