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HML Number: 960778 <br /> California Department of Toxic Substances Control to 960800 <br /> Hazardous Materials Laboratory <br /> Inorganic Section <br /> Quality Assurance Summary <br /> ' HML Soil QC Sanple method Calibration Verification Duplicate Spiked Sample HML No.: Matrix: <br /> Blank Standard <br /> Element Spike Results mg/kg Unspiked Spike % Recovery <br /> mg/kg mg/L Result Added <br /> found known X ng/L found known % A: B: RPD (mg/k9) (mg/kg) A: 8: II <br /> Cr-Chromium <0.08 9.11* 10.0 91.1* <br /> Cu-Co r 0.07 <br /> Ni-Nickel <0.05 <br /> Zn-Zinc <0.05 <br /> HML Liquid QC Seaple Reagent Inorganic Ventures Duplicate Spiked Sample HML No.: 960785 Matrix: LIQUID <br /> Blank Reference Standard <br /> Element m!9/kg mg/L Spike Results mg/kg Unspiked Spike X Recovery <br /> Result Added <br /> found known % found known X A: 8: RPD (mg/kg) (mg/kg) A: B: <br /> mg/L <br /> Cr-Chromium 5.20 5.39 96.5 <0.08 5.02* 5.00 100* 143000* 143000* 0.00 94400* 50000 97.2• 97.2* <br /> Cu-Copper 24.2 29.0 83.4 0.07 1.01 1.00 101 18100 18100 0.00 8350 10000 97.5 97.5 <br /> Ni-Nickel 4.67 4.96 94.2 <0.05 1.05 1.00 105 14900 14900 0.00 3990 10000 109 109 <br /> 2n-2 ink 50.2 57.1 87.9 <0.05 1.03 1.00 103 11500 11500 0.00 401 1 10000 111 111 <br /> NOTE: * Analyzed by FAAS. <br /> 1 <br /> ICP Analyst's Signature: o� Milan S. Iskander, Supervisor, Date: N / <br /> Chemist: Chemist's Signature: +4L`,'i nom' <br /> Date Analyzed: 02/21/97 �/ <br />