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M <br /> . . <br /> E <br /> 1-101 Ma <br /> r <br /> SUPEFRIOR ANALYTICAL, LABORATORY, INC. <br /> 155'55 BURKE, UNIT • SAN FRANCISCO. CA 94124 • F+oNC(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. ; 52483 DATE RECEIVED: 09/07/90 <br /> 77. CLIENT: Leedshill - Herkenhoff, Inc. DATE REPORTED: 09/14/90 <br /> CLIENT JOB NO. : 90819. 12 <br /> ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS <br /> ¢. by Modified EPA SW-848 Method 5030 and 8015 <br /> f LAB Concentration (ug/1 ) <br /> # Sample Identification Gasoline Range <br /> € ---- ---•------------------ ___..---------_ <br /> 22 9-5-90-sbi-w ND<60 <br /> 23 9-6-90••sb4-W 8700 _ <br /> 24 9-6-90-ebB-w 66 <br /> ug/1 - parts per billion (ppb) <br /> Minimum Detection Limit for Gasoline in water: 50ug/l <br /> QAQC Summary: <br /> Daily Standard run at 2m9/L: XDiff Gnaoline = <15 M <br /> { MS/MSD Average Recovery = 9ON: Duplicate RPD = 5 % <br /> r: Rich d Srna, Ph D <br /> Lat,oratory pdrrectoW <br /> u <br /> OUTSTANDING QUALITY AND SERVICE <br />