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v <br /> SUPERIOR ANALYTICAL LABORATORY, INC �y�<< f9 ` <br /> 5 V <br /> 16 <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. . 51418 DATE RECEIVED. 11 /30/89 <br /> CLIENT: Leedshill - Herkenhoff, Inc. DATE REPORTED- 12/01 /89 <br /> CLIENT JOB NO. : 9832. 12 <br /> ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS <br /> by Modified EPA SW-846 Method 8015 <br /> LAB Concentration (mg/kg) <br /> -#-- Sample-Identification Gasoline Range Diesel Range <br /> / / TBS 10 3200 ND<500 <br /> 2 11 /17/89-TB5-20 11000 ND<500 <br /> mg/kg - parts per million (ppm) <br /> Minimum Detection Limit for Gasoline and Diesel in Soil . 10mg/kg <br /> QAQC Summary: <br /> Daily Standard run at 200mg/L. RPD Gasoline = < 15% <br /> = <br /> MS/MSD Average Recovery = 128 RPD Diesel < 15% <br /> Richard Srna, Ph D. <br /> Laboratory Dir for <br /> OUTSTANDING QUALITY AND SERVICE <br />