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www.awdab.com <br />Iairylfca6fie86lr U5kV'1M <br />It f • Billings, Aft 800-735-4489 • Casper, WY 888-235-8515 <br />id City, So 818-672-1225 • College Station, TX 899-698-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 04/15/11 <br />Project: Schwartz-SW 03/16/11 S25593-25600 Work Order: C11030585 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Batch: R144243 <br />Sample ID: C11030585-006DMS4 5 Sample Matrix Spike Run: ICPMS4-C_110330A 03/30/11 19:09 <br />Boron 0.0571 mg/L 0.0027 89 70 130 <br />Iron 1.27 mg/L 0.030 99 70 130 <br />Molybdenum 0.0547 mg/L 0.0010 104 70 130 <br />Silver 0.0150 mg/L 0.010 75 70 130 <br />Uranium 0.213 mg/L 0.00030 111 70 130 <br />Sample ID: 011030585-006DMSD 5 Sample Matrix Spike Duplicate Run: ICPMS4-C_110330A 03/30/11 19:16 <br />Boron 0.0584 mg/L 0.0027 92 70 130 2.2 20 <br />Iron 1.32 mg/L 0.030 102 70 130 3.7 20 <br />Molybdenum 0.0560 mg/L 0.0010 107 70 130 2.4 20 <br />Silver 0.0161 mg/L 0.010 81 70 130 7.5 20 <br />Uranium 0.210 mg/L 0.00030 106 70 130 1.2 20 <br />Sample ID: LRB 5 Method Blank Run: ICPMS4-C_110330A 03/30/11 21:28 <br />Boron 4E-05 mg/L <br />Iron 0.006 mg/L 0.0001 <br />Molybdenum 0.0001 mg/L 8E-05 <br />Silver ND mg/L 8E-05 <br />Uranium ND mg/L 8E-06 <br />Sample ID: LFB 5 Laboratory Fortified Blank Run: ICPMS4-C_110330A 03/30/11 21:35 <br />Boron 0.0513 mg/L 0.0010 103 85 115 <br />Iron 1.26 mg/L 0.012 101 85 115 <br />Molybdenum 0.0523 mg/L 0.0010 104 85 115 <br />Silver 0.0203 mg/L 0.0010 102 85 115 <br />Uranium 0.0524 mg/L 0.00030 105 85 115 <br />Method: E200.8 Batch: R144419A <br />Sample ID: LRB Method Blank Run: ICPMS4-C_110404A 04/04/11 12:28 <br />Molybdenum 0.0002 mg/L 8E-05 <br />Sample ID: LFB Laboratory Fortified Blank Run: ICPMS4-C_110404A 04/04/11 12:35 <br />Molybdenum 0.0510 mg/L 0.0010 102 85 115 <br />Sample ID: C11030827-002DMS4 Sample Matrix Spike Run: ICPMS4-C_110404A 04/05/11 11:17 <br />Molybdenum 0.0463 mg/L 0.0010 91 70 130 <br />Sample ID: 011030827-002DMSD Sample Matrix Spike Duplicate Run: ICPMS4-C_110404A 04/05/11 11:24 <br />Molybdenum 0.0483 mg/L 0.0010 95 70 130 4.3 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 21 of 39 <br />