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wwwznergAab.com ( Helena, M1' 677-472-0711 - Billings, MT 600-735-4489 - Casper, WY 888-235-0515 <br />At>ryrialEreaA?p Slues 1tt51 J Gillette, WY 866-686-7175 • Rapid City, SO 888-672-1225 - College Station, TX 888-690-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation <br />Project: Schwartzwalder Water Monitoring Program SW <br />Report Date: 11 /29/10 <br />Work Order: C10101013 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDL[mit Qua[ <br />Method: E200.8 Batch: R139434A <br />Sample ID: C10110169-00IBMS4 3 Sample Matrix Spike Run: ICPMS4-C_101103B 11/03/10 20:36 <br />Iron 1.30 mg/L 0.030 103 70 130 <br />Thallium 0.0534 mg/L 0.0010 107 70 130 <br />Uranium 1.06 mg/L 0.00030 70 130 A <br />Sample ID: C10110169-001 BMSD 3 Sample Matrix Spike Duplicate Run: ICPMS4-C_101103B 11/03/10 20:42 <br />Iron 1.33 mg/L 0.030 105 70 130 1.7 20 <br />Thallium 0.0525 mg/L 0.0010 105 70 130 1.7 20 <br />Uranium 1.06 mg/L 0.00030 70 130 0.4 20 A <br />Sample ID: LRB 3 Method Blank Run: ICPMS4-C_101103B 11/03/10 18:18 <br />Iron ND mg/L 0.0001 <br />Thallium ND mg/L 2E-05 <br />Uranium ND mg/L 8E-06 <br />Sample ID: LFB 3 Laboratory Fortified Blank Run: ICPMS4-C_101103B 11/03/10 18:25 <br />Iron 1.28 mg/L 0.012 103 85 115 <br />Thallium 0.0531 mg/L 0.0010 106 85 115 <br />Uranium 0.0538 mg/L 0.00030 108 85 115 <br />Method: E200.8 <br />Sample ID: LRB <br />Uranium <br />Sample ID: LFB <br />Uranium <br />Sample ID: C10110221-005AMS <br />Uranium <br />Sample ID: C10110221-005AMSD <br />Uranium <br />Method Blank Run: ICPMS4-C-1 0111 OA <br />ND mg/L 8E-06 <br />Laboratory Fortified Blank Run: ICPMS4-C-1 0111 OA <br />0.0531 mg/L 0.00030 106 85 115 <br />Sample Matrix Spike Run: ICPMS4-C-1 0111 OA <br />0.0236 mg/L 0.00030 44 70 130 <br />Sample Matrix Spike Duplicate Run: ICPMS4-C-1 0111 OA <br />0.0174 mg/L 0.00030 31 70 130 <br />30 <br />Batch: R139699 <br />11/10/10 10:39 <br />11/10/10 10:43 <br />11/10/10 11:53 <br />S <br />11/10/10 11:57 <br />20 SR <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />S - Spike recovery outside of advisory limits. <br />Page 16 of 32