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—+�yr <br /> `i DEC Z g f992 <br /> O <br /> Superior !'recision Aria/y ,tica Inc_ <br /> n" 825 Arnold Drive. Suite 1 14 • Martinez, California 94553 ■ (510) 229-1512 / fax (51 0) j29-1 526 <br /> C E R T I F I C" A T E O F A N A L Y S I S } <br /> Ej <br /> DATE RECEIVED: 12/14/92 <br /> LABORATORY NO. : 87418 <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 J <br /> by Modified EPA SW-846 Method 8015 <br /> (� LAB, Concentration (mg/kg) <br /> # .g Sample Identification Diesel-Range <br /> ------ ------------------- <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 /> I <br /> mg/kg - parts per million (ppm) i <br /> i€ <br /> Method Detection Limit for Diesel in Soil : 10 mg/kg <br /> QAQC E Summary <br /> ik <br /> Daily Standard run at 200mg/L: RPD Gasoline = NA <br /> RPD Diesel = 5 <br /> MS/MSD Average Recovery '= 105 Duplicate RPD = 2 <br /> ,l <br /> Richard Srna, Ph.D. <br /> Labors ory Director. <br /> jk <br /> L <br /> Certified Laboratories <br />