2012-08-06_HYDROLOGY - M1977300 (2)

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ENERGY Or* Client: Cotter Corporation Qualifiers: RL - Analyte reporting limit. MDC - Minimum detectable concentration www.energylab.com Asalyikal &alma Sim 1132 Helena, MT 871 -472 -0711 • Billings, MT 800 -135 -4489 • Casper, WY 888 -235 -0515 Gillette, WY 868 -688 -7175 • Rapid City, SO 888 -872 -1225 • College Station, TX 888 -690 -2218 QA/QC Summary Report Prepared by Casper, WY Branch ND - Not detected at the reporting limit. Report Date: 05/21/12 Project: Schwartz SW 4/12/12 S26446- S26448 Work Order: 012040754 Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLImit Qual Method: E200.8 Analytical Run: ICPMS2- C_120417A Sample ID: ICV 7 Initial Calibration Verification Standard 04/17/12 11:43 Antimony 0.0480 mg/L 0.0010 96 90 110 Arsenic 0.0489 mg /L 0.0010 98 90 110 Copper 0.0485 mg /L 0.0010 97 90 110 Lead 0.0492 mg /L 0.0010 98 90 110 Molybdenum 0.0489 mg /L 0.0010 98 90 110 Silver 0.0200 mg /L 0.0010 100 90 110 Thallium 0.0502 mg /L 0.0010 100 90 110 Method: E200.8 Batch: 33357 Sample ID: MB - 33357 7 Method Blank Run: ICPMS2- C_120417A 04/17/12 13:40 Antimony 9E -05 mg /L 6E -05 Arsenic 0.0002 mg /L 0.0002 Copper 0.0003 mg /L 0.0001 Lead 2E -05 mg /L 2E -05 Molybdenum 0.0002 mg /L 6E -05 Silver 0.0008 mg /L 4E -05 Thallium ND mg/L 4E -05 Sample ID: LCS3 -33357 7 Laboratory Control Sample Run: ICPMS2- C_120417A 04/17/12 13:43 Antimony 0.498 mg /L 0.0010 100 85 115 Arsenic 0.529 mg /L 0.0010 106 85 115 Copper 0.471 mg /L 0.0050 94 85 115 Lead 0.521 mg /L 0.0010 104 85 115 Molybdenum 0.507 mg /L 0.0010 101 85 115 Silver 0.0536 mg /L 0.0010 106 85 115 Thallium 0.517 mg /L 0.00050 103 85 115 Sample ID: C12040754 -001DMS3 7 Sample Matrix Spike Run: ICPMS2- C_120417A 04/17/12 14:19 Antimony 0.482 mg /L 0.0010 96 70 130 Arsenic 0.535 mg /L 0.0010 107 70 130 Copper 0.488 mg /L 0.0050 97 70 130 Lead 0.534 mg /L 0.0010 107 70 130 Molybdenum 0.520 mg /L 0.0010 103 70 130 Silver 0.0535 mg /L 0.0010 107 70 130 Thallium 0.532 mg /L 0.00050 106 70 130 Sample ID: C12040754 -001 DMSD 7 Sample Matrix Spike Duplicate Run: ICPMS2- C_120417A 04/17/12 14:21 Antimony 0.499 mg /L 0.0010 100 70 130 3.4 20 Arsenic 0.543 mg /L 0.0010 109 70 130 1.4 20 Copper 0.494 mg /L 0.0050 99 70 130 1.4 20 Lead 0.548 mg /L 0.0010 110 70 130 2.6 20 Molybdenum 0.536 mg /L 0.0010 107 70 130 3.0 20 Silver 0.0561 mg /L 0.0010 112 70 130 4.9 20 Thallium 0.547 mg /L 0.00050 109 70 130 2.7 20 Page 14 of 28