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if + <br /> Sparger Analytical Laboratory aboratory Drnslon <br /> rTechnologyInc Mobile Laboratory Division <br /> Scientific Division <br /> EPA Method 8020 <br /> Modified Matrix Spike (MS) & Matrix Spike Duplicate (MSD) <br /> BTEX Analysis Report <br /> Attention Mr Claudio Avila Date Sampled Feb 24, 1997 <br /> EMCON Date Received Feb 25, 1997 <br /> 1433 North Market Blvd Date Analyzed Mar 3, 1997 <br /> Sacramento, CA 95834 Invoice# 7469 <br /> Project ID 22613-100 001 Project Name Don Rodgers <br /> Client ID MS/MSD (Batch) LAB ID 7482-015MS <br /> 7482-015MSD <br /> Matrix Water Dilution 11 <br /> Spike Sample MS MSD MS % MSD % % RPD QC Limits <br /> Name Added Conc Result Result - Units Recovery Recovery Recovery RPD %Rec <br />. Benzene 30 ND 25 23 ug/1 83% 77% 8% 20 65-135 <br /> Toluene 30 ND 26 24 ug/1 87% 80% 8% 20 65-135 <br /> Ethylbenzene 30 ND 22 23 ug/I 73% 77% 4% 20 65-135 <br /> m,p-Xylenes 60 070 45 46 ug/I 74% 76% 2% 20 65-135 <br /> o-Xylenes 30 050 23 23 ug/I 75% 75% 0% 20 65-135 <br /> Surrogate % Recovery of Trlfluorotoluene = 103% MS 94% MSD <br /> ppb=parts per billion=ug11=micrograms per Mer <br /> ppm=parts per million a uglml=micrograms per mdlibter <br /> NO=Not Detected Compound(s)may be present at concentrations below the detection limit <br /> Mar 5, 1997 <br /> / R L James, �6hemist 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 /> 8020msw <br />