2013-11-26_HYDROLOGY - M1977300 (4)

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www.erw&b.com Helena, MT 871472 -0711 • Billings, MT 608- 735 -4409 a Casper, WY 888 -235 -8515 ttel Gillette, WY 886-686 -7175 • Rapid City, SO 886 - 672 -1225 • College Station, TX 888 - 690 -2218 QA /QC Summary Report Prepared by Casper, WY Branch Client: Cotter Corporation Report Date: 10/22/13 Project: Schwartz GW 9/23/13 S27095 Work Order: C13090867 Analyte Count Result Units RL ° /6REC Low Limit High Limit RPD RPDLimit Qual Method: E200.7 Batch: 39160 Analytical Run: ICP2- C_130927A Sample ID: ICV 5 Initial Calibration Verification Standard Run: ICP2- C_130927A 09/27/13 21:14 09/27/13 10:59 Aluminum ND mg /L 4.88 mg /L 0.10 98 95 105 Copper 0.001 0.978 mg /L 0.010 98 95 105 ND mg /L Iron 5.08 mg /L 0.030 102 95 105 0.0002 Manganese 5.05 mg /L 0.010 101 95 105 Zinc 0.979 mg /L 0.010 98 95 105 Run: ICP2- C_130927A Sample ID: ICSA 5 Interference Check Sample A 2.47 mg /L 0.030 99 85 115 09/27/13 11:36 Aluminum 493 mg /L 0.10 99 80 120 Iron Copper 2.58 mg /L 0.00440 mg /L 0.010 85 115 Manganese Iron 0.0010 188 mg /L 0.030 94 80 120 0.498 mg /L Manganese 100 0.000100 mg /L 0 010 Sample ID: 013090862- 001CMS3 5 Sample Matrix Spike Zinc Run: ICP2- C_130927A - 0.0135 mg /L 0.010 4.31 mg /L 0.030 149 Sample ID: ICSAB 5 Interference Check Sample AB 0.531 mg /L 0.0050 102 09/27/13 11:40 Aluminum Iron 502 mg /L 0.10 100 80 120 Copper 0.515 mg /L 0.010 103 80 120 Zinc Iron 0.525 mg /L 191 mg /L 0.030 96 80 120 013090862 -001 CMSD3 Manganese 0.505 mg /L 0.010 101 80 120 4.19 mg /L Zinc 145 0.980 mg /L 0.010 98 80 120 0.0050 Method: E200.7 Batch: 39160 Sample ID: MB -39160 5 Method Blank Run: ICP2- C_130927A 09/27/13 21:14 Aluminum ND mg /L 0.009 Copper ND mg /L 0.001 Iron ND mg /L 0.005 Manganese ND mg /L 0.0002 Zinc ND mg /L 0.002 Sample ID: LCS3 -39160 5 Laboratory Control Sample Run: ICP2- C_130927A 09/27/13 21,18 Aluminum 2.47 mg /L 0.030 99 85 115 Copper 0.507 mg /L 0.0050 101 85 115 Iron 2.58 mg /L 0.030 103 85 115 Manganese 2.49 mg /L 0.0010 100 85 115 Zinc 0.498 mg /L 0.010 100 85 115 Sample ID: 013090862- 001CMS3 5 Sample Matrix Spike Run: ICP2- C_130927A 09/27/13 21:31 Aluminum 4.31 mg /L 0.030 149 70 130 S Copper 0.531 mg /L 0.0050 102 70 130 Iron 3.42 mg /L 0.030 107 70 130 Manganese 3.02 mg /L 0.0010 99 70 130 Zinc 0.525 mg /L 0.010 98 70 130 Sample ID: 013090862 -001 CMSD3 5 Sample Matrix Spike Duplicate Run: ICP2- C_130927A 09/27/13 21:35 Aluminum 4.19 mg /L 0.030 145 70 130 2.7 20 S Copper 0.520 mg /L 0.0050 100 70 130 2.1 20 Iron 3.40 mg /L 0.030 106 70 130 0.5 20 Qualifiers: RL - Analyte reporting limit MDC - Minimum detectable concentration ND - Not detected at the reporting limit. S - Spike recovery outside of advisory limits. Page 7 of 21