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SpargeroAnalytical Laboratory Division <br /> TechnoloMobile Laboratory Division <br /> gy Inc. Scientific Division <br /> With Automotion to Mind <br /> ' 8020 Modified Laboratory Control Spike (LCS) & <br /> Laboratory Control Spike Duplicate (LCSD) BTEX Analysis Report <br /> Attention: Mr. Vic Cherven Date Sampled: Oct 7 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: Arts & artists <br /> x <br /> Client ID: LCS/LCSD LAB ID: ST93-10-015 kCS <br /> ST93-10-015 LCSD <br /> Matrix: Water 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 29 30 ug/L 97% 100% 3% <br /> Toluene 30 ppb ND 29 30 ug/L 97% 100% 3% <br />' Ethylbenzene 30 ppb ND 29 30 ug/L 97% 100% 3% <br /> Xylenes 30 ppb ND 29 30 ug/L 97% 100% 3% <br /> Surrogate % Recovery of Trifluorotoluene = 93% LCS 97% LCSD <br />' ppb— parts per billion= uglL — micrograms per Liter <br /> ppm= parts per million uplmL =micrograms per milE iter <br /> ND = Not Detected. Compound(s)may be present at concentrations below the detection limit. <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 • Sacramento, California 95827 • (916) 362-8947 • FAX(946) 362-0947 <br />