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Spargero Analytical Laboratory Division <br /> Mobile Laboratory Division <br /> Technologilyinc. Scientific Division <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: Jun 23, 1993 <br /> Geological Audit Services, Inc. Date Received: Jun 24, 1993 <br /> 1803 West March Lane, Suite A <br /> Stockton, CA 95207 <br /> Project ID: Project Name: Marino Brothers <br /> Client ID: LCS/LCSD LAB ID: ST93-06-029 LCS <br /> ST93-06-029 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 31 28 ug/kg 103% 93% 10% <br /> Toluene 30 ppb ND 30 28 ug/kg 100% 93% 7% <br /> Ethylbenzene 30 ppb ND 31 28 ug/kg 103% 93% 10% <br /> Xylenes 30 ppb ND 28 28 ug/kg 93% 93% 0% <br /> Surrogate % Recovery of Trifluorotoluene = 100% LCS 97% LCSD <br /> ppb = parts per billion = ug/kg = micrograms per kilogram <br /> ppm= parts per million = ug/g = micrograms per gram <br /> NO = Not Detected. Compoundls)may be present at concentrations below the detection limit. <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 • Sacramento, California 95827 9 (916) 362-8947 9 FAX(916) 362-0947 <br />