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A4ED-Tox <br /> ASSOCIATES INC <br /> PAGE 61 OF 61 <br /> MATRIX: WATER MED-TOX JOB NOS: 9105035, <br /> 9105036 & 9105037 <br /> CLIENT PROJ. ID: 10246.19 <br /> MATRIX SPIKE RECOVERY SUMMARY <br /> DC CONTROL LIMITS <br /> OBSERVED RECOVERIES <br /> INST./ SA14PLE SAMPLE SPIKE REC. X RPD <br /> COMPOUND METHOD SPIKED RESULT ADDED MS MSD % REC. RPD LIMIT LIMIT <br /> As, Arsenic V22/7060 9105037-1H NO 0.040 0 472 0_440 103.9 7.2 56-1-141.7 16.0 <br /> Cd, Cadmium ICP/6010 9105025-2F NO 0.05 0 0430 0.0445 87.5 3.42 72.4-112.8 18.9 <br /> Cr, Chromium ICP/6010 9105025-2F 0.010 0.2 0.186 0.186 88.0 0.08 77.4-107.9 5.8 <br /> Cu, Copper ICP/6010 9105025-2F 0.052 0.25 0.281 0.276 90.6 1.73 82.9-104 3 66 <br /> Hg, Mercury Hg/7470 9105037-IH NO 2-0 2.000 2.000 100-0 0.0 95.0-105 0 2 0 <br /> Ni, Nickel ICP/6010 9105025-2F 0.013 0.5 0.451 0.455 88.0 0.88 81.3-104.1 3.4 <br /> iPb, Lead ICP/6010 9105025-2F ND 0.5 0.452 0.456 90.8 1.04 80.1-110-7 6 5 <br /> Se, Selenium V22/7740 9105037-1H NO 0.080 0.0941 0.0985 120.3 4.7 51.1-136.2 17 4 <br /> Zn, zinc ICP/6010 9105025-2F 0_0988 0.5 0.519 0.520 84.2 0-26 65.3-121-2 3 4 <br /> Fluoride DIONEX/300 9105035-5J NO 5 5.06 5.08 101.3 0.39 84.1-114.5 5.8 <br /> iChloride DIONEX/300 9105035-51 30-0 25 60.3 60.2 121.2 0.12 84 8-133.0 5 3 <br /> Nitrate DIONEX/300 9105035-5J ND 5 4.97 4-97 99-4 0.0 71.0-144.0 5 6 <br /> Nitrite DIONEX/300 9105035-5J NO 5 6-46 6.43 128.9 0.47 90 8-153-4 3.3 <br /> Sulfate DIONEX/300 9105035-5J 27_8 50 75 3 76.5 96.2 1-6 82.6-116 2 7 1 <br /> NO = Not Detected <br /> i <br />