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ell <br /> SUPERIOR ANALYTICAL I A80RATOF{Y, INC. <br /> # 1555 SUAKE. UNIT I•SAN FRANC:SCO. CA 94124 - PHONE(415) 647-2061 <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> It <br /> LABORATORY NO,: 52463 DATE RECEIVED: 09/07/90 <br /> " CLIENT: Leedshiii - Herkenhoff, Inc. DATE REPORTED: 09/14/90 <br /> a CLIENT JOS NO. : 90819. 12 <br /> -41 ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS <br /> by Modified EPA SW-846 Method 8015 <br /> LAB <br /> Concentration (m9/k9) <br /> Sampia Identification Diesel Range <br /> ---_ ---------------------- -------------- <br /> k <br /> c.> 3e — -9o-sna-10 ND<10 <br /> 40 9-•6-90-ab6-20 NDC10 <br /> 42 9-6-90-sb6-30 ND<10 <br /> 43 9-6-90-sb6-35 ND<10 <br /> Minimum Detection Limit for Diesel in Sail : 10mg/kg <br /> QAQC Summary: <br /> Daily Standard run at 20OM9/L: %Diff Diesel s <15X <br /> MS/MSD Average Recovery = 967 : Duplicate RPD 1 X <br /> rs Richard Srna, Ph.D. <br /> tM. - <br /> �! Laboratory D ect <br /> Lr <br /> OWSTANDING QUALITYAND SERVICE <br />