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wwwenergyiab.com Helena, MT 8774724711 • Billings, MT 800-735-4468 • Casper, WY 888-235-8515 <br />119 J Gillette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-688-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 11 /17/10 <br />Project: Schwartzwalder Water Monitoring Program (S25247) Work Order: C10101008 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.7 Batch: 28121 <br />Sample ID: MB-28121 2 Method Blank Run: ICP2-C_101109A 11/09/10 23:44 <br />Boron ND mg/L 0.10 <br />Iron ND mg/L 0.030 <br />Sample ID: LCS3-28121 2 Laboratory Control Sample Run: ICP2-C_101109A 11/09/10 23:48 <br />Boron 0.517 mg/L 0.10 98 85 115 <br />Iron 2.63 mg/L 0.030 105 85 115 <br />Sample ID: C10110164.002AMS3 2 Sample Matrix Spike Run: IC132-C_101109A 11/10/10 00:37 <br />Boron 0.731 mg/L 0.10 95 70 130 <br />Iron 3.08 mg/L 0.030 101 70 130 <br />Sample ID: C1 01101 64-002AMSD 2 Sample Matrix Spike Duplicate Run: ICP2-C_101109A 11/10/10 00:41 <br />Boron 0.801 mg/L 0.10 109 70 130 9.1 20 <br />Iron 3.30 mg/L 0.030 110 70 130 6.9 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 11 of 23