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SEQUOIA ANALYTICAL <br /> aYl­ 819Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> (916) 921-9600 • FAX (916) 921.0100 <br />' Raney Geotechnical Client Project ID: #074.013, UPS - North Broadway <br /> 3176 Industrial Blvd. <br /> West Sacramento, CA 95691 <br /> ::Attention: Mike Gereghty QC Sample Group: 2040085-90 Reported: Apr 17, 1992 <br />' QUALITY CONTROL DATA REPORT <br /> ANALYTE D.f. Extract D.I. Extract 0.1. Extract 0.1. Extract <br /> Barium Copper Nickel Vanadium <br />' Method: EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Analyst: S. Foster S. Foster S.Foster S. Foster <br /> Reporting Units: mg/L mg/L mg/L mg/L <br /> Date Analyzed: Apr 15, 1992 Apr 15, 1992 Apr 15, 1992 Apr 15, 1992 <br /> QC Sample#: 204-0002 204-0002 204-0002 20.1.0002 <br />' Sample Conc.: 1.1 N.D. 0.54 N.D. <br /> Spike Conc. <br /> Added: 5 5 5 5 <br />' Conc. Matrix <br /> Spike: 5.8 4.9 5.3 4.9 <br /> Matrix Spike <br /> % Recovery: 94 98 95 98 <br /> Conc. Matrix <br /> Spike Dup.: 5.8 4.8 5.3 4.8 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery: 94 96 95 96 <br /> Relative <br /> % Difference: 0.0 2.1 0.0 2.1 <br /> SEQUOIA ANALYTICAL <br /> ;. %Recovery Conc.of WS. •Conc.of Sample x 100 <br /> �- Spike Conc. Added <br /> Relative 9;Difference: Conc.of M.S.-Conc.of M.S.D. x 100 <br /> IChael R. eg (Conc.of M.S. + Conc.of M.S.D:) /2 <br /> Laboratory Director <br />' 2040080.RRR <32> <br />