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VED 4, <br /> 1992 <br /> SuperiorAelcisionAna/ ica�`�"Inc. <br /> ..Yt <br /> 825 Arnold Drive, Suite 1 14 • Martinez, California 94553 ■ (51 0) 229-1512 /fax (510) 229-1526 <br /> C E R T I F I C:!A T E O F A N A L Y S I S <br /> DATE RECEIVED: 12/14/92 <br /> LABORATORY NO. : 87415 <br /> I� DATE REPORTED: 12/21/92 <br /> CLIENT: Decon Environmental Services <br /> CLIENT JOB NO. : STOCKTON STEEL DATE SAMPLED 12/11/92 <br /> } <br /> ANALYSIS FOR BENZENE, TOLUENE, ETHYL BENZENE & XYLENES <br /> by EPA SW-846 METHODS 5030 and 8020 'I <br /> Concentration (mg/kg) <br /> LAB £ Ethyl <br /> # Sample Identification Benzene Toluene Benzene Xylenes <br /> :f ------- ------- -------- ------ <br /> ---- -------------------- <br /> 1 01-N ND<0 . 003 ND<0 , 003 ND<0 . 003 ND<0 . 003 <br /> 2 02-N ND<0 . 003 ND<0 . 003 ND<0 . 003 ND<0 . 003 <br /> 3 03-N ND<0 . 003 ND<0 . 003 ND<0 . 003 ND<0 . 003 <br /> 4 04-N ND<0 . 003 ND<0 . 003 ND<0 . 003: ND<0 . 003 <br /> 5 01-E ND<0 . 003 ND<0 . 003 ND<0 . 003 ND<0 . 003 <br /> 6 02-E ND<0 . 003 ND<0 . 003 ND<0 . 003- ND<0 . 003 <br /> 7 03-E 0 . 047 0 . 070 0 . 32 j 1 . 0 <br /> 8 i 04-E ND<0 . 003 ND<0 . 003 ND<0 . 003 ND<0 . 003 <br /> 9 1 DESP3 ' ND<0 . 003 ND<0 . 003 ND<0 . 003 ND<0 . 003 <br /> mg/kg - parts per million (ppm) <br /> Method Detection Limit in Soil : 0 . 003 mg/kg <br /> e <br /> QAQC ! Summary: <br /> Daily Standard run at 20 ug/L: RPD = <15% <br /> MS/MSD Average Recovery= 92% Duplicate RPD = <1!k <br /> Richard Srna, Ph.D.- <br /> 41� <br /> � . � <br /> Labora ry Director <br /> f <br /> it f� <br /> !1 <br /> i� <br /> 1 <br /> Certified Laboratories <br />