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�# Rz:.CElU`ED <br />� o <br /> Superior Ae) cision Analytic'aP: inc. CSC <br /> 825 Arnold Drive, Suite 1 14 • Martinez, California 94553 ■ (510) 229 1512 /fax {5101229-1526 <br /> i <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. : 87415 <br /> 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 5030 and 8015 <br /> LAB Concentration (mg/Kg) <br /> # i Sample Identification Gasoline Range <br /> --------------------- -------------- <br /> 7. <br /> 11 01-N ND¢1 l <br /> 5iy 01-E ND¢1 r <br /> 9 DESP31 ND<1 <br /> a <br /> mg/kg - parts per million (ppm) <br /> ii <br /> 1! <br /> Method Detection Limit for Gasoline in Soil : 1 mg/kg <br /> ( QAQC Summary: <br /> Daily Standard run at 2mg/L: RPD Gasoline = c15 <br /> MS/MSD Average Recovery = 910 Duplicate RPD = 3% <br /> [k <br /> Richard Srna, Ph.D. <br /> 01 Abora ry Director <br /> 1 <br /> r <br /> Certified Laboratories <br />