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WWWff #ab.com ( Helena, MT 677-41Z-OlI 1 • Billings, MI OuI1"/aa-"GO - baapar, m vvu-ao+-w w <br />K--,..? l -..... - v.?e _ - ,.... - 4100 _c711_11"c ¦ P.11 Sc+.Oi.. TyJUIR-ASIA-V'11A <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 03/04/11 <br />Project: Schwartz SW02-03-11 S25602-S25608 Work order: C11020189 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Quell <br /> Batch: R142714 <br />Method: E200.8 <br />Sample ID: LRB 4 Method Blank Run: ICPMS2-C_110211A 02/11/11 12:47 <br />Arsenic ND mg/L 0.0020 <br />Molybdenum ND mg/l- 0.0050 <br />Uranium ND mg/L 0.00020 <br />Zinc ND mg/L 0.0050 <br />Sample ID: LFB 4 Laboratory Fortified Blank Run: ICPMS2-C_110211A 02/11/11 12:54 <br />Arsenic 0.0526 mg/L 0.0010 105 85 115 <br />Molybdenum 0.0516 mg/L 0.0010 103 85 115 <br />Uranium 0.0502 mg/L 0.00030 100 85 115 <br />Zinc 0.0542 mg/L 0.0010 108 85 115 <br />Sample ID: C11020224-001AMS4 4 Sample Matrix Spike Run: ICPMS2-C_110211A 02/12/11 04:36 <br />Arsenic 0.0525 mg/L 0.0010 105 70 130 <br />Molybdenum 0.0494 mg/L 0.0010 99 70 130 <br />Uranium 0.0510 mg/L 0.00030 102 70 130 <br />Zinc 0.0651 mg/L 0.010 130 70 130 <br />Sample ID: C11020224-001AMSD 4 Sample Matrix Spike Duplicate Run: ICPMS2-C_110211A 02/12/11 04:43 <br />Arsenic 0.0530 mg/L 0.0010 106 70 130 0.9 20 <br />Molybdenum 0.0495 mg/L 0.0010 99 70 130 0.2 20 <br />Uranium 0.0510 mg/L 0.00030 102 70 130 0.0 20 <br />Zinc 0.0657 mg/L 0.010 131 70 130 0.9 20 S <br />Method: E200.8 Batch: R142961 <br />Sample ID: LRB 2 Method Blank Run: ICPMS2-C_110222A 02/22/11 14:05 <br />Silver ND mg/L 0.00020 <br />Uranium ND mg/L 0.00020 <br />Sample 1D: LFB 2 Laboratory Fortified Blank Run: ICPMS2-C_110222A 02/22/11 14:12 <br />Silver 0.0198 mg/L 0.0010 99 85 115 <br />Uranium 0.0541 mg/L 0.00030 108 85 115 <br />Sample ID: C1 1020388-001 BMS4 2 Sample Matrix Spike Run: ICPMS2-C_110222A 02/22/11 15:33 <br />Silver 0.020 mg/L 0.010 99 70 130 <br />Uranium 0.051 mg/L 0.00030 101 70 130 <br />Sample ID: C1 1020388-001 BMSD 2 Sample Matrix Spike Duplicate Run: ICPMS2-C_110222A 02/22/11 15:40 <br />Silver 0.020 mg/L 0.010 100 70 130 0.3 20 <br />Uranium 0.051 mg/L 0.00030 101 70 130 0.2 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 20 of 37