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www.ensdab.com <br />Aff6"E=Wb 2 w IM <br />Helena, W S77472-0711 • Billings, WOOD-735-4489 a Casper, WY 888-235-1515 <br />Gillette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 688-691-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 11 A 7/10 <br />Project: Schwartzwalder Water Monitoring Program (S25247) Work Order: C10101008 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Batch: R139434A <br />Sample ID: C10110169-001 BMS4 3 Sample Matrix Spike Run: ICPMS4-C_101103B 11/03/10 20:36 <br />Chromium 0.0535 mg/L 0.050 107 70 130 <br />Iron 1.30 mg/L 0.030 103 70 130 <br />Manganese 0.101 mg/L 0.010 104 70 130 <br />Sample ID: C10110169-001BMSD 3 Sample Matrix Spike Duplicate Run: ICPMS4-C_101103B 11/03/10 20:42 <br />Chromium 0.0534 mg/L 0.050 107 70 130 0.2 20 <br />Iron 1.33 mg/L 0.030 105 70 130 1.7 20 <br />Manganese 0.102 mg/L 0.010 105 70 130 0.5 20 <br />Sample ID: LRB 3 Method Blank Run: ICPMS4-C_101103B 11/03/10 18:18 <br />Chromium ND mg/L 0.050 <br />Iron ND mg/L 0.030 <br />Manganese ND mg/L 0.0050 <br />Sample ID: LFB 3 Laboratory Fortified Blank Run: ICPMS4-C_101103B 11/03/10 18:25 <br />Chromium 0.0523 mg/L 0.0010 105 85 115 <br />Iron 1.28 mg/L 0.012 103 85 115 <br />Manganese 0.0522 mg/L 0.0010 104 85 115 <br />Method: E200.8 <br />Sample ID: MB-28121 4 Method Blank <br />Antimony ND mg/L <br />Arsenic ND mg/L <br />Thallium 0.00101 mg/L <br />Uranium ND mg/L <br />Sample ID: LCS3-28121 4 Laboratory Con trol Sample <br />Antimony 0.590 mg/L <br />Arsenic 0.503 mg/L <br />Thallium 0.506 mg/L <br />Uranium 0.559 mg/L <br />Sample ID: C10110164.002AMS3 4 Sample Matrix Spike <br />Antimony 0.582 mg/L <br />Arsenic 0.498 mg/L <br />Thallium 0.493 mg/L <br />Uranium 0.566 mg/L <br />Sample ID: 010110164-002AMSD 4 Sample Matrix Spike Duplicate <br />Antimony 0.600 mg/L <br />Arsenic 0.532 mg/L <br />Thallium 0.546 mg/L <br />Uranium 0.601 mg/L <br />Batch: 28121 <br />Run: ICPMS4-C 101109A 11/09/1019:17 <br />0.0010 <br />0.00050 <br />0.00020 <br />0.00020 <br /> Run: ICPMS4-C_101109A 11/09/1019:23 <br />0.050 118 85 115 S <br />0.0010 100 85 115 <br />0.10 101 85 115 <br />0.00030 112 85 115 <br /> Run: ICPMS4-C_101109A 11/09/10 21:41 <br />0.050 116 70 130 <br />0.0010 99 70 130 <br />0.10 99 70 130 <br />0.00030 110 70 130 <br /> Run: ICPMS4-C_101109A 11/09/10 21:48 <br />0.050 120 70 130 3.2 20 <br />0.0010 106 70 130 6.5 20 <br />0.10 109 70 130 10 20 <br />0.00030 117 70 130 6.0 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 13 of 23