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µ^ <br /> SUPERIOR ANALYTICAL LABORATORY, INC. <br /> 1385 FAIRFAX ST.,STE. U •SAN FRANCISCO,CA 94124 • PHONE(415) 647-2081J9 <br /> F <br /> C E R T I F I C A T E O F A N A L Y S I S ?yam <br /> LABORATORY NO. : 51398 DATE RECEIVED: 11/22/89 <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 5030 and 8015 <br /> LAB Concentration (mg/kg) <br /> # Sample Identification Gasoline Range <br /> .. ----- ---------------------- <br /> 3 MW4-10 ND<1 <br /> 5 MW4-20 <br /> ND<1 <br /> 7 MW4-30 ND<1 <br /> 9 MW4-40 ND<1 <br /> 11 MW4-50 ND<1 <br /> 12 MW4-55 <br /> ND<1 <br /> f <br /> mg/kg - parts per million (ppm) <br /> Minimum Detection Limit for Gasoline in Soil : lmg/kg <br /> i„ - <br /> QAQC Summary: <br /> Daily Standard run at 2mg/L: RPD Gasoline <br /> ` MS/MSD Average Recovery = 107%: Duplicate RAD = 0% <br /> j <br /> Richard Srna, Ph.D. <br /> Laboratory Dir for <br /> G .. <br /> OUTSTANDING QUALITYAND SERVICE <br />