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American ,ttivironmentai jvem,ork <br /> PAGE 5 <br /> QUALITY CONTROL DATA <br /> MATRIX: WATER AEN JOB NO: 9406184 <br /> CLIENT PROJ. ID: 2482 DATE(S) ANALYZED: 06/20-21/94 <br /> METHOD SPIKE RECOVERY SUMMARY <br /> QC Limits <br /> Spike Average <br /> Inst./ Added Percent X Rec. RPD <br /> Compound Method (mg/L) Recovery RPD Limit Limit <br /> Ag, Silver ICP/6010 0.25 105 <1 64-122 8 <br /> As, Arsenic 4000/7060 0.04 101 4 84-118 12 <br /> Ba, Barium ICP/6010 2.0 103 <1 85-116 5 <br /> Be, Beryllium ICP/6010 0.05 98 1 76-107 6 <br /> Cd, Cadmium ICP/6010 0.25 105 <1 78-119 10 <br /> Co, Cobalt ICP/6010 0.5 105 <1 89-116 6 <br /> Cr, Chromium ICP/6010 0.2 106 <1 87-117 8 <br /> Cu, Copper ICP/6010 0.25 97 1 85-113 6 <br /> Hg, Mercury Hg/7470 2.0 ug/L 98 4 80-120 15 <br /> Mo, Molybdenum ICP/6010 0.2 106 <1 86-120 6 <br /> Ni , Nickel ICP/6010 0.5 107 <1 88-116 6 <br /> Pb, Lead ICP/6010 0.5 104 1 87-119 7 <br /> Sb, Antimony ICP/6010 0.5 109 <1 82-123 8 <br /> Se, Selenium 4000/7740 0.08 101 <1 80-114 14 <br /> T1 , Thallium ICP/6010 0.5 96 <1 77-119 9 <br /> V, Vanadium ICP/6010 0.5 105 <1 89-114 5 <br /> Zn, Zinc ICP/6010 0.5 103 1 87-117 7 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> over the reporting limit. <br /> *** END OF REPORT *** <br />