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www.energyiab.com ft Helena, MT 877-472-0711 o Billings, MT 800 735 4489 < Casper WY 888435.0515 <br />AniWealFzcapaeceSias IOU ' Gillette, WY 866-686-7175 Q Rapid City SD 888-672-1225 • College Statmn, TX 888-690-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation <br />Project: Schwartzwalder Water Monitoring Program-Discharge <br />Analyte Count Result Units <br />Report Date: 09/27/10 <br />Work Order: C10090073 <br />RL %REC Low Limit High Limit RPD RPDLimit Wual <br />Method: E200.8 <br />Sample ID: LRB 6 Method Blank <br />Cadmium 3E-05 mg/L <br />Copper ND mg/L <br />Nickel NO mg/L <br />Selenium NO mg/L <br />Uranium NO mg/L <br />Zinc 0.001 mg/L <br />Sample ID: LFB 6 Laboratory Fort ified Blank <br />Cadmium 0.0519 mg/L <br />Copper 0.0504 mg/L <br />Nickel 0.0511 mg/L <br />Selenium 0.0524 mg/L <br />Uranium 0.0536 mg/L <br />Zinc 0.0527 mg/L <br />Sample ID: C10090075-001BMS4 6 Sample Matrix Spike <br />Cadmium 0.0491 mg/L <br />Copper 0.0484 mg/L <br />Nickel 0.0481 mg/L <br />Selenium 0.0484 mg/L <br />Uranium 0.0525 mg/L <br />Zinc 0.0610 mg/L <br />Sample ID: C10090075-001 BMSD 6 Sample Matrix Spike Duplicate <br />Cadmium 0.0496 mg/L <br />Copper 0.0492 mg/L <br />Nickel 0.0497 mg& <br />Selenium 0.0504 mg/L <br />Uranium 0.0530 mg/L <br />Zinc 0.0605 mg/L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br /> Batch: R136941 <br /> Run:ICPMS2-C_100907A 09/07/1011:58 <br />1 E-05 <br />7E-05 <br />0.0007 <br />0.0002 <br />1 E-05 <br />0.0003 <br /> Run:ICPMS2-C_100907A 09107/10 12:06 <br />0.0010 104 B5 115 <br />0.0010 101 85 115 <br />0.0010 102 85 115 <br />0.0010 105 85 115 <br />0.00030 107 85 115 <br />0.0010 103 85 115 <br /> Run:ICPMS2-C_100907A 09108/1006:52 <br />0.010 98 70 130 <br />0.010 94 70 130 <br />0.0010 93 70 130 <br />0.0010 94 70 130 <br />0.00030 105 70 130 <br />0.010 92 70 130 <br /> Run: ICPMS2-C_100907A 09/08110 06:59 <br />0.010 99 70 130 1 20 <br />0.010 95 70 130 1.5 20 <br />0.0010 96 70 130 3.1 20 <br />0.0010 98 70 130 4.1 20 <br />0.00030 106 70 130 1 20 <br />0.010 91 70 130 0.7 20 <br />ND - Not detected at the reporting limit. <br />Page 12 of 22