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Ji <br /> ;:?fir SUPERIOR ANALYTICAL LABORATORY, INC. <br /> 1385 I AlfifAX S., STE. U. SAN Ff1ANCI.SCO. CA 9412.4 • P1IONE (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. : 51447 DATE RECEIVED: . 12/08/89 <br /> CLIENT : Lecdshill - Herkenhoff , Inc . DATE REPORTED: 12/16/£39 <br /> CLIENT JOB NO. : 98,32 . 12 <br /> ANALYSIS FOR TOTAL PETROLEUM, HYDROCARBONS <br /> by Modified EPA SW-646 Method 8015 <br /> LAB concentration (mg/kg ) <br /> f Sample Identification Gasoline Range Diesel Range <br /> 7 C1 ND< 10 ND00 <br /> b C2 ND< 10 ND< 10 <br /> 9 C3 ND< 10 ND< 10 <br /> Minimum Detection Limit for Gasoline and Diesel in Soil : iomg/kg <br /> QAQC Summary : <br /> I <br /> Daily Standard run at 2001ng/L : RPD Gasoline = < 15% <br /> RPD Diesel = <30% RSD <br /> MS/MSD Average Recovery = 74% : Duplicate RPD = 7% <br /> Richard Srna, Ph. D. <br /> Laboratory Dir for <br /> OUTSTANDING QUALITY AND SERVICE <br />