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Sparger 0 Analytical Laboratory Dmsion <br /> '01 J Mobile Laboratory Dnnslon <br /> ech olo y Inc Scientific Dnnsion <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 Oct 13, 1997 <br /> Apex Envirotech, Inc Date Received Oct 15, 1997 <br /> 7844 Madison Ave , Ste 106 Date Analyzed Oct 27, 1997 <br /> Fair Oaks, CA 95628 Invoice# 8572 <br /> Project ID ERA02 009 Project Name New Manteca Frontage Road <br /> Client ID MS/MSD (Batch) LAB ID 8619-001 MS <br /> 8619-001 MSD <br /> Matrix Soil Dilution 1 1 <br /> Spike Sample MS MSD MS % MSD % % RPD QC Limits <br /> Analyte Added Conc Result Result Units Recovery Recovery Recove RPD %Rec <br /> Benzene 30 ND 26 24 ug/kg 87% 80% 8% 20 65-135 <br /> Toluene 30 ND 26 24 ug/kg 87% 80% 8% 20 65-135 <br /> Ethylbenzene 30 ND 24 22 ug/kg 80% 73% 9% 20 65-135 <br /> m,p-Xylenes 60 50 54 49 ug/kg 82% 73% 10% 20 65-135 <br /> o-Xylenes 30 ND 26 24 ug/kg 87% 80% 8% 20 65-135 <br /> Surrogate % Recovery of Trifluorotoluene = 88% MS 87% MSD <br /> ppb=parts per billion=ug/kg=micrograms per kilogram <br /> ppm=pans per million=ugtg=micrograms per gram <br /> ND=Not Detected Compound(s)may be present at concentrations below the detection limit <br /> Oct 29, 1997 <br /> RL James,Principal Chemist Date Reported <br /> 181 SPARGER TECHNOLOGY ANALYTICAL LABORATORY INC IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Cwtification No 1614) <br /> 8020MSS As <br /> 3050 Fife Circle Suite 112 • Sacramento California 95827 • (996) 362-8947 o FAX(996) 362-0947 <br />