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SEQUOIA ANALYTICAL <br /> 819 Striker 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 /> 5 3176 Industrial Blvd. <br /> West Sacramento, CA 95691 <br /> Attention: Mike Gereghty OC Sample Group: 2040080-90 Reported: Apr 17, 1992 <br />' QUALITY CONTROL DATA REPORT <br /> ANALYTE STLC STLC STLC STLC STLC STLC <br /> Barium Nickel Vanadium Copper Beryllium Cadrnium <br /> Method: EPA 6010 EPA 5010 EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Analyst: Chiaravallcti Chiaravallotl Chiaravailoti Chiaraaalloti Chiaravalloti Chiaravailoti <br /> Reporting Units: mg/L mg/L mg/L rng/L mg/L mcg/L <br /> Date Analyzed: Apr 13, 1992 Apr 13, 1992 Apr 13, 1992 Apr 13. 1982 Apr 13. 1992 Apr 13. 1992 <br /> OC Sample #: 204-0060 204.0060 204-0060 20,-0060 204-0060 204-0050 <br /> Sample Conc.: 4.8 N.D- N.D. 0038 N.D- N.D. <br /> Spike Conc. <br /> Added: 2 1 1 1 1 1 <br /> Conc. Matrix <br /> Spike: 6.4 0.97 1 1 0.96 0.99 <br /> Matrix Spike <br /> % Recovery: 80 97 100 96 96 99 <br /> Conc. Matrix <br /> Spike Dup.: 6.7 1 1 1 0.97 1 <br /> Matrix Spike <br /> Duplicate <br />' % Recovery: 95 100 100 96 97 100 <br /> Relative <br /> % Difference: 4.6 3 0.0 0.0 1.0 1.0 <br /> 1 <br /> SEQUOIA ANA 4YTICAL °o Recovery: Conc.of M.S. -Conc.of Sample x 100 <br /> Spike Conc.Added <br /> � Xi <br /> Relative 90 Difference: Conc. of M,S.- Conc. of M.S.D. x 100 <br /> ichae11 es (Conc of M.S. + Conc. of M.S.D.) / 2 <br />' Laboratory Director <br /> 2040080.RRR <31> <br />