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SUPERIOR ANALYTICAL_ LABORATORY, INC. <br /> 1385 FAIRFAX ST, STE D • SAN FRANCISCO. CA 94124 • PHONE (415) 647-2081 <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. - 51483 DATE RECEIVED: 12/15/89 <br /> ' CLIENT. Leedshi7l - Herkenhoff, Inc. DATE REPORTED. 12/27/89 <br /> CLIENT JOB NO. , 9832 . 12 <br /> ANALYSIS FOR TOTAL PERTROLEUM HYDROCARBONS <br /> by Modified EPA SW-846 Method 8015 <br /> LAB Concentration (mg/kg) <br /> # Sample Identification <br /> ---- --------------------- Gasoline Range <br /> 1 BC-5 <br /> 2 BC-5 ND< 1 <br /> 3 BC-7 9 <br /> 4 BC-8 ND< 1 <br /> 5 BC-9 1 <br /> ND< 1 <br /> mg/kg - parts per million (Ppm) <br /> Minimum Detection Limit for Gasoline in Soil . 1mg/kg <br /> QAQC Summary <br /> ' Daily Standard run at 2mg/L - RPD Gasoline = < 15% <br /> MS/MSD Average Recovery = 104%. Duplicate RPD = 7% <br /> Richard Srna, PP-D. <br /> f <br /> 2gLabor:a!tory DZ actor <br /> i <br /> OUISTANDINC OUAZI i Y AND SERVICE <br />