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w <br /> y <br />) <br /> Imo` <br /> I superior Precision natVtical, Inc. <br /> ln)i I 1 4 !; �''7 <ii1«'{rj iid C'�`°i ti j510j 729 !512/foY 1�tCtj <br /> f .E <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. : 03678 DATE RECEIVED: 09/06/91 <br /> CLIENT: Parker Environmental Services DATE RFPORTED: 09/13/91 <br /> CLIENT JOB NO. : 113-13 DATE SAMPLED ! 09/06/91 <br /> ANALYSIS FOR BENZENE, TOLUENE, ETHYL BENZENE & XYLENES <br /> by EPA SW-846 Methods 5030 and 8020 <br /> Concentration(ug/Kg) <br /> LABEthyl <br /> 0 sample Ioentificatiorn Benzene 'Toluene Bonzene Xylanas <br /> 1 8-1-6 ND<3 ND<3 NDc3 N00 <br /> 2 B-1-ii ND<3 ND<3 ND<3 ND<3 <br /> 3 B-1 -16 ND<3 ND<3 ND<3 NDO <br /> 4 5-1-21 ND<3 ND<3 ND<3 ND<3 <br /> 5 B-1-20 ND 0 NQ<3 ND<3 ND<3 <br /> 6 B-1-29 ND(3 N00 ND<3 ND<3 <br /> ug/Kg - parts pet- bi11ion (NPL)) <br /> Method Detection Limit, in Soil : 3 uE/Kg <br /> OAQC Summary: <br /> Daily Standard run at 20ug/L: RPD = <15% <br /> MS/MSD Average Recovery 989: Duplicate RPD m <3 <br /> Richard Sr u, Ph.D. <br /> Laboratory Director <br /> Crt�i l�tn�,t,n+rs _ <br /> .ft <br />