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J <br /> cb Curtis &Tompkins Ltd <br /> LABORATORY NUMBER: 103642 - 12 DATE _t-NA-1 QED • 04 / 29 / 91 <br /> CLIENT: MILLER ENG I NEER I NG DATE IcLlUIL 1 EL <br /> PROJECT ID: RMI - STOCKTON <br /> SAMPLE ID: 16 - 1A, 1B , 1C <br /> RESULT UNITS REPORTING METHOD <br /> PARAMETER LIMIT <br /> - ^„&Dm1 UM! <br /> 1 . 7 mg/kg 0 . 25 EP"--&01-0 <br /> CHROMIUM <br /> 30 . 0 mg/kg 0 . 50 EPA 6010 <br /> HEXAVALENT CHROMIUM ND mg /kg 0 . 06 EPA 7195 <br /> NICKEL <br /> 29 1 mg/kg 1 . 6 EPA 6010 <br /> LEAD <br /> ND mg /kg 3 . 0 EPA 7420 <br /> ZINC <br /> 50 7 mg / kg 0 50 EPA 6010 <br /> ND= Not detected at or above reporting Limit . <br /> RPD 90 Recovery , % <br /> QA/QC SUMMARY <br /> _--__, 5 94 <br /> CADMIUM 3 90 <br /> CHROMIUM c1 102 <br /> HEXAVALENT CHROMIUM 3 87 <br /> NICKEL 3 101 <br /> LEAD <1 91 <br /> ZINC <br />