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I cb <br /> Curtis &Tompkins Ltd <br /> I <br /> i <br /> LABORATORY NUMBER: 103642 » 9 DATE RECEIVED- 04 / 26 / 91 <br /> CLIENT. MILLER ENGINEERING DATE A-NA,LYZEU. 04 / 29 / 91 <br /> PROJECT ID RMI -STOCKTON DATE REPORTED: 04 / 30 / 91 <br /> SAMPLE ID 5 - 1A, 1B, 1C <br /> I <br /> PARAMETER RESULT UNITS REPORTING METHOD <br /> LIMIT <br /> CADMIUM 1 5 mg / kg 0 25 EPA 6010 <br /> CHROMIUM 22 5 mg / kg 0 50 EPA 6010 <br /> HEXAVALENT CHROMIUM ND mg / kg 0 06 EPA 7195 <br /> NICKEL 22 . 2 mg /kg 1 . 6 EPA 6010 <br /> LEAD 12 9 mg /kg 3 . 0 EPA 7420 <br /> IWINC 43 4 mg /kg 0 50 EPA 6010 <br /> I <br /> I <br /> ND=Not detected at or above reporting limit <br /> QA/QC SUMMARY RPD, % Recovery , % <br /> CADMIUM 5 94 <br /> CHROMIUM 3 90 <br /> HEXAVALENT CHROMIUM ¢1 102 <br /> NICKEL 3 87 <br /> LEAD 3 101 <br /> ZINC c1 91 <br /> I <br /> I <br />