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P <br /> SUPERIOR ANALYTICAL LABORATORY, INC. <br /> 1555 BURKE, UNIT I•SAN FRANCISCO, CA 94124 • PHONE"(4 647-2081 <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. : 81009 DATE RECEIVED: 06/14/90 <br /> CLIENT: Western Geologic Resources DATE REPORTED: 06/20/90 <br /> CLIENT JOB NO. : 6-056.03 <br /> ANALYSIS FOR BENZENE, TOLUENE, ETHYL BENZENE & XYLENES <br /> cy EPA SW-846 Methods 5030 and 8020 <br /> i'1 <br /> C,oncentration(ug/Kg) <br /> LAB Ethyl <br /> -#V- Sample-Identification Benzene Toluene Benzene Xylenes <br /> ------- ------- ----- ------- <br /> 8 8-7-15.5' ND<3 ND<3 ND<3 ND<3 <br /> 12 B-7-35.0' ND<3 I4D<3 ND<3 ND<3 <br /> 16 B-7-55.5' ND<3 I4D<3 ND<3 ND<3 <br /> is B-7-66 ND<3 10<3 ND<3 ND<3 <br /> F <br /> ug/kg - par's per billion (ppb) <br /> Method Detection Limit in Soil : 3 ug/Kg <br /> ;rJ Method Detection Limit in Water: 0.3 ug/L <br /> } <br /> OAQC Summary: <br /> Daily Standard run at 20ug/L: RPD - <15% <br /> f , 'u MS/MSD Average Recovery = 89%: Duplicate RPD = <4% <br /> 4 Rich a, P <br /> Labor Manager <br /> r - <br /> -� OUTSTANDING QUALITY AND SERVICE <br /> �l <br />