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ENERGY <br />LAHO RATSRIES <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />www.energylab.com Helena, MT 877 472 - 0711 • Billings, MT 800 735 - 4489 • Casper, WY 888 - 235 - 0515 <br />An'h' 't Excellence ars 1852 Gillette, WY 866 -686 -7115 • Rapid City, SD 889- 672 -1225 • College Station, TX 888 -690 -2218 <br />Client: Cotter Corporation <br />Project: Schwartz GW 9/20/2012 S26607 & S26608 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />111 <br />Method: E200.8 Analytical Run: ICPMS4- C_121005A <br />Sample ID: ICV 13 Initial Calibration Verification Standard 10/05/12 12:30 <br />Aluminum 0.0504 mg /L 0.0010 101 90 110 <br />Antimony 0.0527 mg /L 0.0010 105 90 110 <br />Calcium 10.0 mg /L 0.0066 100 90 110 <br />Copper 0.0495 mg /L 0.0010 99 90 110 <br />Iron 0.997 mg /L 0.0010 100 90 110 <br />Magnesium 9.96 mg /L 0.0027 100 90 110 <br />Manganese 0.0496 mg /L 0.0010 99 90 110 <br />Molybdenum 0.0498 mg /L 0.0010 100 90 110 <br />Potassium 9.84 mg /L 0.0041 98 90 110 <br />Sodium 9.94 mg /L 0.0043 99 90 110 <br />Thallium 0.0503 mg /L 0.0010 101 90 110 <br />Uranium 0.0503 mg /L 0.00030 101 90 110 <br />Zinc 0.0514 mg /L 0.0010 103 90 110 <br />Method: E200.8 <br />Sample ID: LRB 13 Method Blank <br />Aluminum ND mg /L 0.0002 <br />Antimony 0.0003 mg /L 0.0001 <br />Calcium 0.06 mg /L 0.007 <br />Copper ND mg /L 3E -05 <br />Iron ND mg /L 0.0006 <br />Magnesium 0.006 mg /L 0.003 <br />Manganese ND mg /L 3E -05 <br />Molybdenum ND mg /L 3E -05 <br />Potassium ND mg /L 0.004 <br />Sodium 0.01 mg /L 0.004 <br />Thallium ND mg /L 6E -05 <br />Uranium 0.0002 mg /L 9E -06 <br />Zinc ND mg /L 0.0002 <br />Run: ICPMS4-C_121005A <br />Sample ID: LFB 13 Laboratory Fortified Blank Run: ICPMS4- C_121005A <br />Aluminum 0.0504 mg /L 0.0010 101 85 115 <br />Antimony 0.0476 mg /L 0.0010 95 85 115 <br />Calcium 12.9 mg /L 0.0066 103 85 115 <br />Copper 0.0499 mg /L 0.0010 100 85 115 <br />Iron 1.28 mg /L 0.0010 102 85 115 <br />Magnesium 12.7 mg /L 0.0027 101 85 115 <br />Manganese 0 0518 mg /L 0.0010 104 85 115 <br />Molybdenum 0.0492 mg /L 0.0010 98 85 115 <br />Potassium 12.6 mg /L 0.0041 101 85 115 <br />Sodium 12.7 mg /L 0.0043 101 85 115 <br />Thallium 0.0514 mg /L 0.0010 103 85 115 <br />Uranium 0.0514 mg /L 0.00030 102 85 115 <br />Zinc 0.0538 mg /L 0.0010 108 85 115 <br />ND - Not detected at the reporting limit. <br />Report Date: 10/18/12 <br />Work Order: C12090782 <br />Batch: R165489 <br />10/05/12 13:05 <br />10/05/12 13:10 <br />Page 11 of 21 <br />