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OCT-24-2000 14:10 :TSC CROYDON OFFICE • 916 255 3696 P.02/03 <br /> California Department of Toxic Substances Control HML No.: 000413 <br /> Hazardous Material%Laboratory To- 000417 <br /> Inorganic Section it <br /> Quality Assurance Summary <br /> ICPAES <br /> Elements Arsenic As Chromium Cr Cu <br /> Initial Refence Standard Found 0.86 1.03 3 <br /> Calibration mg1L Known 1.00 1.00 0 <br /> Verification Spex % Recovery 86.0 103 0 <br /> Lo* 1-48BR Found 8.94 10.5 0 <br /> Exp'date: 8101 Known 100 10.0 0 <br /> % Recovery 89 105 0 <br /> Reagent Blank <0.100 <0.080 00 <br /> Continuing Spex Found 88.7 99.5 2 <br /> Calibration mglL Known 100 100 3 <br /> Verification % Recove 86.7 99.5 2 <br /> Method Blank <0.100 <0.080 00 <br /> Duplicate HML No.: 000417 Spike Result A 389 491 3 <br /> Spike Spike Result B 384 - 485 3 <br /> Results Sample type: soil Uns Ike Result <5.00 37.1 5 <br /> Spike Added: 500 500 1 <br /> % Rf!mve A 77.8 90.8 7 <br /> % Recovery B 78.8 89.6 7 <br /> RPD 1.30 1.33 0 <br /> Duality HML soil Found 53.0 58,7 9 <br /> Control Samp, mg/kg Known B3.3 59.8 7 <br /> % Recovery 83.7 98.5 B <br /> Fatima Hussain, Analyst Miled S.Iskander.it5pervisor I <br /> to <br /> ZQ® OR/X(FV T Dall --,- MYd OV XUH9 7FM ST9Cnb Cn14 vva (17•a <br />