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www energylab.mm Helena, MT 077472-0711 • Billings, MT 800-7354468 • Casper, WY 888-236-1315 <br />rer J 6ilietta, WY 806-686-7175 • Rapid City, SD 880-672-1225 • Wage Station, TX 886-080-2210 <br />QA/QC Summary Report <br />Revised Date: 11/23/10 <br />Client: Cotter Corporation Report Date: 11 /12/10 <br />Project: Schwartzwalder Water Monitoring Program Discharge Work Order: 010100590 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Batch: 28033 <br />Sample ID: MB-28033 4 Method Blank Run: ICPMS4-C_101102B 11/02/10 21:10 <br />Arsenic 0.0008 mg/L 5E-05 <br />Boron 0.009 mg/L 0.003 <br />Iron 0.002 mg/L 0.001 <br />Thallium 0.001 mg/L 0.0001 <br />Sample ID: LCS3-28033 4 Laboratory Control Sample Run: ICPMS4-C_101102B 11/02/10 21:17 <br />Arsenic 0.513 mg/L 0.0010 102 85 115 <br />Boron 0.440 mg/L 0.10 86 85 115 <br />Iron 2.14 mg/L 0.030 86 85 115 <br />Thallium 0.501 mg/L 0.10 100 85 115 <br />Sample ID: C10101128-00213MS3 4 Sample Matrix Spike Run: ICPMS4-C_101102B 11/02/10 23:55 <br />Arsenic 0.506 mg/L 0.0010 101 70 130 <br />Boron 0.454 mg/L 0.10 78 70 130 <br />Iron 2.23 mg/L 0.030 87 70 130 <br />Thallium 0.505 mg/L 0.10 101 70 130 <br />Sample ID: 010101128-002DMSD 4 Sample Matrix Spike Duplicate Run: ICPMS4-C_101102B 11/03/10 00:02 <br />Arsenic 0.507 mg/L 0.0010 101 70 130 0.2 20 <br />Boron 0.456 mg/L 0.10 79 70 130 0.6 20 <br />Iron 2.21 mg/L 0.030 86 70 130 0.8 20 <br />Thallium 0.493 mg/L 0.10 99 70 130 2.4 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 13 of 22