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Client Number BN 01ARC01 <br /> FaAlrtyopfe Chu Number <br /> Arca Representative Chuck Carmel <br /> Work Order Number C3-07-0251 <br /> QC Check Sample Results <br /> Date of Expected <br /> Analyte Source Analysis Value Units Recoverya, % <br /> Modified EPA 8020 <br /> Benzene SUPELCO 06/23/93 500 ug/L 108 <br /> Toluene SUPELCO 06/23/93 500 ug/L 112 <br /> Ethylbenzene SUPELCO 06/23/93 Soo ug/L 103 <br /> Xylene, total SUPELCO 06/23/93 1500 ug/L 110 <br /> Metals <br /> Lead VHG LOT #21039H 07 20 93 50 t—U—(J/—Ll 95 4 <br /> QC Matrix Spike and Duplicate Spike Results <br /> Matrix Water <br /> Sample Date of Spike Recovery, Duplicate <br /> Analyte ID Analysis Amount Units % Recovery, % RPDa,% <br /> Modified EPA 8020 <br /> Benzene C3070259-12 07/24/93 200 ug/L 110 112 18 <br /> Toluene C3070259-12 07/24/93 200 ug/L 100 101 10 <br /> Eihylbenzene 03070259-12 07/24/93 200 ug/L 890 885 06 <br /> Xylene, total 03070259-12 07/24/93 600 ug/L 890 86 7 26 <br /> Metals, <br /> Lead 03070121-01 07/20/9315000 u L 91 0 870 449 <br /> a See attached table for acceptability[Imrts <br /> GTELConcord,CA <br /> 0307 IG-TEL - <br /> FNVIC3070251BT8 R O KU t N I A L <br /> - LARORATORIIS INC. <br />