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Spargero Analytical Laboratory Division <br /> Mobile LaboratoryyInc Scientific Dvsion <br /> ' WiflA'ht�(J <br /> ' 8020 Modified Laboratory Control Spike (LCS) & <br /> Laboratory Control Spike Duplicate (LCSD) ETEX Analysis Report <br /> t Attention Mr Rick Walls Date Sampled Jan 29 1 <br /> a p a 996 <br /> ' Geocon Environmental Date Received Jan 31, 1996 <br /> 3235 Sunrise Blvd , Ste 6 Date Analyzed Feb 1, 1996 <br /> Rancho Cordova, CA 95742 Invoice# 6229 <br /> ' Project ID S8100-06-11 B Project Name Stockton Yard <br /> Client ID LCS/LCSD LAB ID ST96-02-001 LCS <br /> ' Matrix Soil Dilution ST96-02-001 LCSD <br /> ' Conc Sample LCS LCSD LCS % LCSD % % RPD <br /> Name Spike Added Result Result Result Units Recovery Recovery Recovery <br /> Benzene 30 ppb ND 30 35 ug/kg 100% 117% 15% <br /> Toluene 30 ppb ND 31 36 ug/kg 103% 120% 15% <br /> Ethylbenzene 30 ppb ND 31 37 ug/kg 103% 123% 18% <br /> Xylenes 30 ppb ND 32 38 ug/kg 107% 127% 17% <br /> Surrogate % Recovery of Trifluorotoluene = 103% LCS 101% LCSD <br /> ppb=parts per billion=ug/kg=micrograms per kilogram <br /> ppm=park per million=uglg=micrograms per gram <br /> ND=Nol Delecled Compound(s)may be present at concenlralions below the detection limit <br />' Feb 6, 1996 <br /> R t 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 />' 3(1561 hf(-' C w` fc- `)odc 112 o SoctomeWo California 95827 996 362-8947 a FAX 9465 362-0947 <br />