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1 <br /> Spargero Analytical Laboratory Division <br />' Mobile Laboratory Division <br /> T6chmlcgylnc. Sclentffic Division <br /> I tth Automotion in Mind <br /> I <br /> 8020 Modified Laboratory Control Spike (LCS) & <br /> Laboratory Control Spike Duplicate (LCSD) BTEX Analysis Report <br /> Attention Ms Faith Morris-Daverin Date Sampled Feb 22, 1994 <br />' Geological Audit Services, Inc Date Received Feb 23, 1994 <br /> 1803 W March Lane, Suite A <br /> Stockton, CA 95207 <br /> Project ID Project Name Larry's Auto Repair <br />' Client ID LCS/LCSD LAB ID ST94-03-002 LCS <br /> ST94-03-002 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 31 30 ug/L 103% 100% 3% <br /> Toluene 30 ppb ND 32 31 ug/L 107% 103% 3% <br />' Ethylbenzene 30 ppb ND 32 32 ug/L 107% 107% 0% <br /> Xylenes 30 ppb ND 32 31 ug/L 107% 103% 3% <br /> Surrogate % Recovery of Trifluorotoluene = 113% LCS 100% LCSD <br /> ppb=parts per billion=ug,L=micrograms per Liter <br /> ppm=par's per million=uglmL=micrograms per milliliter <br /> ND=Not Detected Campoine,'sr may be presert at concentrations below the de ec ion limit <br /> Mar 3, 1994 <br /> R L James Principal Chemist Date Reported <br /> ISPARGER TECHNOLOGY ANALYTICAL LABORATORY 1NC IS CERTIcIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Cerinccaticn No Soto) <br /> r <br /> 3050 Fite Circle Suite 112 • Sacramento Colifornio 95827 • (996) 362-8947 • FAX(916) 362-0947 <br />