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`I <br /> Spargero Analytical Laboratory Dmsion <br /> Mobile Laboratory Drvision <br /> oTechnok4y,n. Scientific Dmsion <br /> With Automohon in Mind <br /> EPA Method 601 <br /> Halogenated Volatile Organics <br /> Matrix Control Spike (MS) and Matrix Spike Duplicate (MSD) <br /> Attention Mr Tam Landwehr Date Sampled Apr 30, 1998 <br /> Apex Envirotech, Inc Date Received May 1, 1998 <br /> 7844 Madison Ave Ste 106 Date Analyzed May 6, 1998 <br /> Fair Oaks, CA 95628 Invoice# 9451 MAY98 <br /> Project# ERA02-009 Project Name Manteca Moore Petro <br /> Client ID MS/MSD LAB ID 9451-001 MS <br /> 9451-001 MSD <br /> Matrix Water Dilution 1 1 <br /> UNITS = ug/I <br /> Sample Spike MS MSD MS MSD OC Limits <br /> Compound Conc Added Result Result % Rec % Rec RPD RPD % Rec <br /> 1,1-Dichloroethane ND 10 13 13 130% 130% 0% 20 51-130 <br /> Trichloroethene ND 10 11 10 110% 100% 10% 20 72-130 <br /> 1,2-Dichloropro pane ND 10 12 12 120% 120% 0% 20 67-120 <br /> Chlorobenzene ND 10 11 10 110% 100% 10% 20 59-130 <br /> 1,2-Dichlorobenzene ND 10 10 10 100% 100% 0% 20 60-140 <br /> Surrogate % Recovery of 2-Bromo-l-Chloropropane = 104% MS 102% MSD <br /> Surrogate % Recovery of 1,4-Dichlorobutane = 95% MS 93% _MSD <br /> ppb=parts per billion=ugA=micrograms per Eger <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 /> May 26, 1998 <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 /> (Certification No 1614) <br /> 601 MSW As <br /> 3050 Fite Circle Suite 112 9 Sacramento Califomio 95827 • (946) 362-8947 • FAX(996) 362-0947 <br />