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,.01 <br /> Superior Precision Analytical. Inc. <br /> 825 Arnold Drive, Suite 1 14 • Martinez, California 94553 510) 229-1115 12 /f X 19"€596 xv <br /> a <br /> i <br /> C E R T I F I C A T E O F A N A L Y S DEC 2 8 SSD2 <br /> EWR0i%v)LPNTAI. HEALTH <br /> LABORATORY NO. : 87415 DATE RECEIVEPERkb-Y `r04;;F,:y <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 5030 and 8015 <br /> LAB Concentration (mg/kg) <br /> # Sample Identification Gasoline Range <br /> 1 01-N ND<1 <br /> 5 01-E ND<1 <br /> 9 DESP3 ' ND<1 <br /> mg/kg - parts per million (ppm) <br /> Method Detection Limit for Gasoline in Soil : 1 mg/kg <br /> QAQC Summary: <br /> Daily Standard run at 2mg/L: RPD Gasoline = <15 <br /> MS/MSD Average Recovery = 9126 : Duplicate RPD = 3; <br /> Richard Srna, Ph.D. <br /> Laboratory Director <br /> Certified Laboratories <br />