2010-11-01_HYDROLOGY - M1977300 (2)

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• wr?w.energylabxom f Helena, MT 877-472-0711 -Billings, MT 800-195-4489 - Casper WY 8B8 235-0515 .? N Amtyt(c?/Excetlanu3ince 1932 Gillette, WY 866-686-7175 G Rapid Cfty, so 888-672-1225 o College station, TX 888-69D-2218 QA/QC Summary Report Client: Cotter Corporation Project: Schwartzwalder Water Monitoring Program-Discharge Report Date: 09/27/10 Work Order: C10090073 ... _ Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLim]t Qua] Method: E200.8 Batch: 27351 Sample ID: MB-27351 4 Method Blank Run: ICPMS2-C_100914A 09114/10 15:12 Antimony ND mg/L 0.0003 Arsenic ND mg/L 0.0008 Thallium ND mg/L 0.0004 Uranium 9E-05 mg/L 6E-05 Sample ID: LC33-27351 4 Laboratory Control Sample Run: ICPM52-C_100914A 09/14/1015:19 Antimony 0.59 mg/L 0.0010 119 85 115 S Arsenic 0.52 mg/L 0.0010 105 85 115 Thallium 0.53 mg/L 0.00040 107 85 115 Uranium 0.56 mg/L 0.00030 113 85 115 - The response for Antimony response is above standard QA limit. This could indicate a high bias for the sample results. Since there were no detectable analyte responses, and the remainder of the run QA is withi n acceptance range, this batch is approved. Sample ID: C10090090-014BMS3 4 Sample Matrix Spike Run: ICPMS2-C_100914A 09/1 4110 16:20 Antimony 0.60 mg/L 0.0010 120 70 130 Arsenic 0.52 mg/L 0.0010 103 70 130 Thallium 0.54 mg/L 0.00040 109 70 130 Uranium 0.61 mg/L 0.00030 120 70 130 Sample ID: C10090090-014SMSD 4 Sample Matrix Spike Duplicate Run: ICPMS2-C--100914A 09/14/10 16:27 Antimony 0.60 mglL 0.0010 121 70 130 0.3 20 Arsenic 0.52 mg/L 0.0010 103 70 130 0.4 20 Thallium 0.55 mg/L 0.00040 109 70 130 0.8 20 Uranium 0.60 mg/L 0.00030 119 70 130 0.9 20 Method: E200.8 Batch: R137408A Sample ID: C10090073-001HMS4 2 Sample Matrix Spike Run: ICPMS4•C_100917A 09/17/10 21:37 Arsenic 0.0460 mg/L 0.0010 91 70 130 Silver 0.0182 mg/L 0.010 91 70 130 Sample ID: C10090073-001 HMSD 2 Sample Matrix Spike Duplicate Run: ICPMS4-C_100917A 09/17/10 21:44 Arsenic 0.0455 mg/L 0.0010 90 70 130 1.1 20 Silver 0.0179 mg/L 0.010 89 70 130 1.6 20 Sample ID: LRB 2 Method Blank Run: ICPMS4-C_100917A 09/17/1016:03 Arsenic NO mg/L 4E-05 Silver NO mg/L 8E-05 Sample ID: LFB 2 Laboratory Fortified Blank Run: ICPMS4-C._100917A 09117/10 16:09 Arsenic 0.0527 mg/L 0.0010 105 85 115 Silver 0.0209 mg/l_ 0.0010 105 85 115 Qualifiers: RL - Analyze reporting limit. NO - Not detected at the reporting limit. MDC - Minimum delectable concentration S - Spike recovery outside of advisory limits. Page 13 of 22