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Spargero Analytical laboratory Division <br /> Mobile Laboratory Dvislon <br /> TechnologyInc Scientific Division <br /> W ft) ALdoriiohon rr� MincY <br /> i <br /> 8020 Modified Laboratory Control Spike (LCS) & <br /> Laboratory Control Spike Duplicate (LCSD) BT'EX Analysis Report <br /> Attention Mr Rick Walls Date Sampled Jan 31 1996 <br /> Geocon Environmental Date Received Feb 1, 1996 <br /> ' 3235 Sunrise Blvd , Ste 6 Date Analyzed Feb 8, 1996 <br /> Rancho Cordova, CA 95742 Invoice# 6231 <br /> tProject ID S8100-06-11B Project Name Stockton Yard <br /> Client ID LCS/LCSD LAB ID ST96-02-008LCS <br /> ST96-02-008LCSD <br /> Matrix Soil Dilution <br /> Cone Sample LCS LCSD LCS % LCSD % % RPD <br /> Name Spike Added Result Result Result Units Recovery Recovery Recovery <br /> Benzene 30 ppb ND 26 26 ug/kg 87% 87% 0% <br /> Toluene 30 ppb ND 26 25 ug/kg 87% 83% 4% <br /> ' Ethylbenzene 30 ppb ND 26 25 uglkg 87% 83% 4% <br />' Xylenes 30 ppb ND 27 25 uglkg 90% 83% 8% <br /> Surrogate % Recovery of Triiluorotoluene = 84% LCS 84% LCSD <br /> ppb=parts per billion=Ug/kg=micrograms per kilogram <br /> ppm=parts per million=Uglg=micrograms per gram <br /> tND=Not Detected Campound(s)may be present at concentrations below the detection limit <br />' Feb 9, 1996 <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 />' (Certpficabon No 1614) <br /> 112 0 S(-1Ct01))er-)10 Cohfori-ilo 95827 0 (996) 362-8947 o FAX (916) 362-0947 <br />