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T® <br /> SUPERIOR ANALYTICAL LABORATORY, INC OAC' <br /> 1385 FAIRFAX ST, STE D • SAN FRANCISCO, CA 94124 • PHONE (415) 647-2081 'k,"ell. l9 <br /> yF� ss <br /> �F <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. 51398 DATE RECEIVE 2 <br /> D. 11 /289/ <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 5030 and 8015 <br /> LAB_ --------------------- Concentration (mg/kg ) <br /> # Sample Identification GasolineRange <br /> 3 MW4-10 ND< 1 <br /> 5 MW4-20 ND< 1 <br /> 7 MW4-30 ND< 1 <br /> 9 MW4-40 ND< 1 <br /> 11 MW4-50 ND< 1 <br /> 12 MW4-55 ND< 1 <br /> mg/kg - parts per million (ppm) <br /> Minimum Detection Limit for Gasoline in Soil : lmg/kg <br /> QAQC Summary: <br /> Y <br /> Daily Standard run at 2mg/L: RPD Gasoline = <15% <br /> MS/MSD Average Recovery = 107%. Duplicate RPD = 0% <br /> Richard Srna, Ph. D <br /> Laboratory 461toor <br /> OUTSTANDING OUALITY AND SERVICE <br />