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Spargero Analytical Laboratory Dnnslon <br /> TechnolMobile Laboratory Division <br /> 09 ice• 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. Tom Landwehr Date Sampled: Apr 30, 1998 <br /> Apex Envirotech, Inc. Date Received: May 1, 1998 <br /> 7844 Madison Ave. Ste. 106 Date Analyzed: May 4, 1998 <br /> Fair Oaks, CA 95628 Invoice#: 9450MAY98 <br /> Project ID: ERA02.004 Project Name: Moore Petroleum <br /> Client ID: MS/MSD LAB 1D: 9450-001 MS <br /> 9450-001 MSD <br /> Matrix: Water Dilution 1: 1 <br /> Spike Sample MS MSD MS % MSD % % RPD QC Limits <br /> Analyte Added Conc. Result Result Units Recovery Recovery Recovery RPD %Rec <br /> Benzene 30 2.1 33 35 ug/I 103% 110% 6% 20 65-135 <br /> Toluene 30 0.5 30 32 ug/I 98% 105% 6% 20 65-135 <br /> Ethylbenzene 30 ND 28 30 ug/I 93% 100% 7% 20 65-135 <br /> m,p-Xylenes 60 0.4 53 57 ug/I 88% 94% 7% 20 65-135 <br /> o-Xylenes 30 0.3 28 30 ug/I 92% 99% 7% 20 65-135 <br /> Surrogate % Recovery of Trifluorotoluene= 100% MS 100% MSD <br /> ppb=parts per billion=ugA=micrograms per Iger <br /> ppm=parts per million=ugiml=micrograms per milliliter <br /> ND=Not Detected. Compound(s)may be present at concentrations below the detection limit <br /> May 8, 1998 <br /> R.L.James,Principal Chemist Date Reported <br /> SPARGER TECHNOLOGY ANALYTICAL LABORATORY,INC.IS CER-MED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No.1614) <br /> 8020MSW.xIs <br /> 3050 Fite Circle, Suite 112 • Sacramento, California 95827 0 (9f6) ,362-8947 • FAX(916) ,362-0947 <br />