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Superior Pr cision Ana/erica/, / � <br /> [Eli <br /> 825 Arnold Drive, Suite 114 • Martinez, Calirornia 94553 (510) 229 151 P K4(7T0 29-1529 °0 <br /> DEC 2 8" 1992 <br /> EIVVirI L HEALTH <br /> PEFUW UbERVICES <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> LABORATORY NO. : 87418 DATE RECEIVED: 12/14/92 <br /> CLIENT: Decon Environmental Services DATE REPORTED: 12/21/92 <br /> CLIENT JOB NO. : STOCKTON STEEL DATE SAMPLED : 12/11/92 <br /> ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS <br /> by Modified EPA SW-846 Method 8015 <br /> LAB Concentration (mg/kg) <br /> # Sample Identification Diesel Range <br /> 1 SP-1, -2 ND<10 <br /> 2 SP-3 , -4 30 <br /> 3 SP-5, -6 37 <br /> 4 SP-7, -8 200 <br /> 5 SP-9 84 <br /> mg/kg - parts per million (ppm) <br /> Method Detection Limit for Diesel in Soil : 10 mg/kg <br /> QAQC Summary: <br /> Daily Standard run at 200mg/L: RPD Gasoline = NA <br /> RPD Diesel = 5 <br /> MS/MSD Average Recovery = 105 % : Duplicate RPD = 2 <br /> Richard Srna, Ph.D. <br /> tZ <br /> Laboratory Direc or <br /> Certified Laboratories <br />