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.. P t i' •. i a.0 <br /> ur3 <br /> S <br /> P.. <br /> SUPERIOR ANALYTICAL LABORATORY, INC. <br /> 1555 BURKE. UNIT I • SAP, FRANCISCO. C4 94124 • PHONE (415) 647.2081 <br /> C E R T I F I C A T E O F A LN A L Y S I S <br /> LABORATORY NO. : 80562 DATE RECEIVED: 02/16/90 <br /> CLIENT: Alton Geoscience DATE REPORTED: 02/22/90 <br /> CLIENT JOB NO. : 30-1.10 <br /> ANALYSIS FOR BENZENE, TOLUENE, ETHYL BENZENE & XYLENES <br /> by EPA SW-846 Methods 5030 and 8020 <br /> wConcentration(ug/L) <br /> LAB Ethyl <br /> x Sample Identification Benzene Toluene Benzene Xylenes <br /> 1 MW-1 ND<0.3 ";D<0.3 ND<0.3 !D<0.3 <br /> - 2 MW-2 43 0.8 0. 7 1 .6 <br /> 3 MW-4 370 43 130 98 <br /> 4 4W-5 220 9.4 65 150 <br /> 5 MW-6 220 21 330 250 <br /> 6 kik -S 9.4 7.3 70 1'•0 <br /> 7 Mi+-7 ND<0.3 SD<0.3 VD<0.3 ND<0.3 <br /> r ug/L - parts per billion (ppb) <br /> ug/kg - parts per billion (ppb} <br /> Method Detection Limit in Soil: 3 ug/kg <br /> Method Detection Limit in Hater: 0.3 ug/L <br /> QAQC Summary: <br /> Daily Standard run at 20ug/L: RPD = <15% <br /> MS/MSD Averase Recovery = 100 %: Duplicate RPD = <1% <br /> Edw•a�R ft. ra lis r <br /> l <br /> -- -.L. ara ry._Manager--- ---- <br /> Y <br /> OUTSTANDING QUALITY AND SERVICE <br />