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ENTHALPY <br /> ANALYT I C A L <br /> Batch QC <br /> Type: Matrix Spike Duplicate Lab ID: QC865647 Batch: 244690 <br /> Matrix(Source ID): Miscell. (427167-002) Method: EPA 6010B Prep Method: EPA 3050B <br /> Source <br /> Sample RPD <br /> QC865647 Analyte Result Result Spiked Units Recovery Qual Limits RPD Lim DF <br /> Antimony 76.61 ND 101.0 mg/Kg 76% 75-125 1 41 1 <br /> Arsenic 72.68 3.573 101.0 mg/Kg 68% 75-125 4 35 1 <br /> Barium 108.4 11.68 101.0 mg/Kg 96% 75-125 4 20 1 <br /> Beryllium 88.81 ND 101.0 mg/Kg 88% 75-125 1 20 1 <br /> Cadmium 99.22 20.85 101.0 mg/Kg 78% 75-125 1 20 1 <br /> Chromium 228.4 150.8 101.0 mg/Kg 77% 75-125 1 20 1 <br /> Cobalt 92.17 6.552 101.0 mg/Kg 85% 75-125 3 20 1 <br /> Copper 129.6 39.55 101.0 mg/Kg 89% 75-125 0 20 1 <br /> Lead 121.7 28.02 101.0 mg/Kg 93% 75-125 7 20 10 <br /> Molybdenum 82.24 ND 101.0 mg/Kg 81% 75-125 0 20 1 <br /> Nickel 110.9 17.72 101.0 mg/Kg 92% 75-125 1 20 1 <br /> Selenium 19.89 ND 101.0 mg/Kg 20% 75-125 27* 20 1 <br /> Silver 78.81 ND 101.0 mg/Kg 78% b 75-125 3 20 1 <br /> Thallium 89.82 10.03 101.0 mg/Kg 79% 75-125 0 20 1 <br /> Vanadium 126.7 21.04 101.0 mg/Kg 105% 75-125 5 20 10 <br /> Zinc 12,050 12230 101.0 mg/Kg -177% NM 75-125 11 20 10 <br /> Value is outside QC limits <br /> ND Not Detected <br /> NM Not Meaningful:Sample concentration>4X spike concentration <br /> b See narrative <br /> 4 of <br /> 13 of 13 <br />