2012-12-17_HYDROLOGY - M1977300 (3)

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Qualifiers: • ��i www.energylab.com Analytical Excellence Rocs 1952 Client: Cotter Corporation Project: Schwartz GW 9/27/2012 S26570 Helena, MT 877- 472 -0111 • Billings, MT 800- 135 -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 Method: E200.8 Sample ID: MB -35244 9 Method Blank Aluminum 0.002 mg /L 0.0007 Antimony 0.0001 mg /L 6E -05 Arsenic 0.002 mg /L 0.0002 Copper 0.0002 mg /L 0.0001 Lead 7E -05 mg /L 2E -05 Manganese 0.0006 mg /L 7E -05 Silver 0.0008 mg /L 4E -05 Thallium 0.0004 mg /L 4E -05 Zinc ND mg /L 0.009 Run: ICPMS2- C_121016A Report Date: 10/23/12 Work Order: C12100013 r Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual Method: E200.8 Analytical Run: ICPMS2- C_121016A Sample ID: ICV 9 Initial Calibration Verification Standard 10/16/12 12:30 Aluminum 0.0513 mg /L 0.0010 103 90 110 Antimony 0.0516 mg /L 0.0010 103 90 110 Arsenic 0.0504 mg /L 0.0010 101 90 110 Copper 0.0530 mg /L 0.0010 106 90 110 Lead 0.0489 mg /L 0.0010 98 90 110 Manganese 0.0505 mg /L 0.0010 101 90 110 Silver 0.0205 mg /L 0.0010 103 90 110 Thallium 0.0492 mg /L 0.0010 99 90 110 Zinc 0.0530 mg /L 0.0010 106 90 110 Batch: 35244 10/16/12 20:19 Sample ID: LCS3 -35244 9 Laboratory Control Sample Run: ICPMS2- C_121016A 10/16/12 20:33 Aluminum 2.40 mg /L 0.030 96 85 115 Antimony 0.528 mg /L 0.0010 105 85 115 Arsenic 0.514 mg /L 0.0010 102 85 115 Copper 0.500 mg /L 0.0050 100 85 115 Lead 0.505 mg /L 0.0010 101 85 115 Manganese 2.41 mg /L 0.0010 96 85 115 Silver 0.0551 mg /L 0.0010 109 85 115 Thallium 0.485 mg /L 0.00050 97 85 115 Zinc 0.502 mg /L 0.010 100 85 115 Sample ID: C12100001- 001CMS3 9 Sample Matrix Spike Run: ICPMS2- C_121016A 10/16/12 20:43 Aluminum 46.9 mg /L 0.030 70 130 A Antimony 1.04 mg /L 0.0010 104 70 130 Arsenic 1.04 mg /L 0.0010 103 70 130 Copper 0.998 mg /L 0.0050 98 70 130 Lead 108 mg /L 0.0010 107 70 130 Manganese 4.81 mg /L 0.0010 90 70 130 Silver 0.105 mg /L 0.0010 105 70 130 Thallium 1.05 mg /L 0.00050 105 70 130 Zinc 1.05 mg /L 0.019 93 70 130 RL - Analyte reporting limit. A - The analyte level was greater than four times the spike level. In accordance with the method % recovery is not calculated. ND - Not detected at the reporting limit. MDC - Minimum detectable concentration Page 8 of 20