2012-12-17_HYDROLOGY - M1977300 (3)

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ENERGY LABORATORIES Client: Cotter Corporation Qualifiers: RL - Analyte reporting limit. IN ND - Not detected at the reporting limit. www.erergylab.com Analytical Excellence Since 1852 J Method: E200.8 Sample ID: LRB 5 Method Blank Antimony 0.0002 mg /L 6E -05 Arsenic ND mg /L 0.00010 Mercury ND mg /L 0.00010 Silver ND mg /L 5E -05 Thallium 1E-05 mg /L 9E -06 Helena, MT 877 472 - 0711 • Billings, MT 800 - 735 - 4489 • Casper, WY 888 - 235 - 0515 Gillette, WY 866 - 686 - 7175 • Rapid City, SD 888 - 672 - 1225 • College Station, TX 888 - 690 - 2218 QA/QC Summary Report Prepared by Casper, WY Branch Project: Schwartz GW 9/13/12 S26638 Work Order: C12090499 Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual Method: E200.8 Batch: 35047 Sample ID: C12090499- 001DMS3 10 Sample Matrix Spike Run: ICPMS2- C_120921A 09/21/12 19:48 Uranium 22.0 mg /L 0.00030 70 130 A Zinc 0.505 mg /L 0.019 94 70 130 Sample ID: C12090499- 001DMSD 10 Sample Matrix Spike Duplicate Run: ICPMS2- C_120921A 09/21/12 20:01 Aluminum 2.12 mg /L 0.030 84 70 130 3.3 20 Antimony 0.549 mg /L 0.0010 110 70 130 0.5 20 Arsenic 0.532 mg /L 0.0010 106 70 130 1.6 20 Copper 0.471 mg /L 0.0050 93 70 130 3.7 20 Manganese 3.87 mg /L 0.0010 101 70 130 0.4 20 Molybdenum 0.923 mg /L 0.0010 113 70 130 0.3 20 Silver 0.0504 mg /L 0.0010 101 70 130 1.0 20 Thallium 0.528 mg /L 0.00050 106 70 130 2.6 20 Uranium 21.6 mg /L 0.00030 70 130 2.0 20 A Zinc 0.487 mg /L 0.019 90 70 130 3.7 20 Method: E200.8 Analytical Run: ICPMS2- C_121003A Sample ID: ICV 5 Initial Calibration Verification Standard 10/03/12 12:09 Antimony 0.0546 mg /L 0.0010 109 90 110 Arsenic 0.0501 mg /L 0.0010 100 90 110 Mercury 0.00534 mg /L 0.0010 107 90 110 Silver 0.0208 mg /L 0.0010 104 90 110 Thallium 0.0518 mg /L 0.0010 104 90 110 Run: ICPMS2- C_121003A Sample ID: LFB 5 Laboratory Fortified Blank Run: ICPMS2- C_121003A Antimony 0.0540 mg /L 0.0010 108 85 115 Arsenic 0.0532 mg /L 0.0010 106 85 115 Mercury 0.00543 mg /L 0.0010 109 85 115 Silver 0.0202 mg /L 0.0010 101 85 115 Thallium 0.0545 mg /L 0.0010 109 85 115 Report Date: 10/18/12 Batch: R165373 10/03/12 12:30 10/03/12 12:33 A - The analyte level was greater than four times the spike level. In accordance with the method % recovery is not calculated. MDC - Minimum detectable concentration Page 13 of 23