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n + <br /> Spargero Analytical Laboratory Dmsion <br /> Mobile Laboratory Derision <br /> eJ <br /> chnolo y Inc Scientific Division <br /> With Automation in Mind <br /> EPA Method 8020 <br /> Modified Matrix Spike (MS) & Matrix Spike Duplicate (MSD) <br /> BTEX Analysis Report <br /> Attention Mr Jeffrey Rothgery Date Sampled May 29, 1997 <br /> Apex Envirotech, Inc Date Received May 30, 1997 <br /> 7844 Madison Ave , Ste 106 Date Analyzed Jun 3, 1997 <br /> Fair Oaks, CA 95628 Invoice # 7855 <br /> Project ID ERA02 009 Project Name Moore Petroleum <br /> Client ID MS/MSD LAB ID 7855-004MS <br /> 7855-004MSD <br /> Matrix Water Dilution 1 1 <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 23 24 ug/I 77% 80% 4% 20 65-135 <br /> Toluene 30 ND 24 25 ug/l 80% 83% 4% 20 65-135 <br /> Ethylbenzene 30 ND 24 24 ug/l 80% 80% 0% 20 65-135 <br /> m,p-Xylenes 60 2 4 45 46 ug/l 71% 73% 2% 20 65-135 <br /> o-Xylenes 30 0 90 24 24 ug/l. 77% 77% 0% 20 65-135 <br /> Surrogate % Recovery of Trifluorotoluene = 99% MS 100% MSD <br /> ppb s parts per billion a ugll a micrograms per titer <br /> ppm=parts per million=uglml=micrograms per milliliter <br /> ND=Not Detected Compound(s)may be present at concentrations below the detection limit <br /> Jun 9, 1997 <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 /> (Certrficabon No 1614) <br /> 8020msw <br /> 3050 Fite Circle Suite 112 • Sacramento California 95827 0 (996) 362-8947 • FAX(976) 362-0947 <br />