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fn �, <br /> - Sparg el Analytical Laboratory DMSIon <br /> Mobile Laboratory Division <br /> • Technoicy Inc. scientific Division <br /> With Automahon /n Mlnd <br /> 8020 Modified Laboratory Control Spike (LCS) & <br /> Laboratory Control Spike Duplicate (LCSD) BTEX Analysis Report <br /> Attention Mr Bob Marty Date Sampled Jan 14, 1994 <br /> Geological Audit Services, Inc Date Received Jan 17, 1994 <br /> 1803 West March Lane, Suite A <br /> Stockton, CA 95207 <br /> Project ID Project Name Mid-Cal Leasing II <br /> Client ID LCS/LCSD LAB ID ST94-01-031 LCS <br /> ST94-01-031 LCSD <br /> Matrix Water Dilution <br /> Conic Sample LCS LCSD LCS % LCSD % % RPD <br /> Name Spike Added Result Result Result Units Recovery Recovery Recovery <br /> • Benzene 30 ppb ND 33 31 ug/L 110% 103% 6% <br /> Toluene 30 ppb ND 32 31 ug/L 107% 103% 3% <br /> Ethylbenzene 30 ppb ND 32 31 ug/L 107% 103% 3% <br /> Xylenes 30 ppb ND 32 32 ug/L 107% 107% 0% <br /> Surrogate % Recovery of Trifluorotoluene = 110% LCS 93% LCSD <br /> ppb - parts per billion - ug(L - micrograms per Liter <br /> ppm- parts per million = ug/mL = micrograms per milliliter <br /> NO = Not Detected CDmpoundis}may be present at concentrations below the detection limit <br /> Feb 2, 1994 <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 /> ICertiricatlon No 16141 <br /> 3050 Fite Grcle, Suite 112 . Sacramento, Californla 95827 • (916) 362-8947 o FAX(996) 362-0947 <br />