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www.ewdab.com Helena,MT$77472-0711 •Billings,MT 800-7354489•Casper,WY 888-235-0515 <br /> f Sb"1NT f Gillette,WY 866-686-7175 0 Rapid City,SO 888-672-1225•College Station,TX 888-698-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper,WY Branch <br /> Client: Cotter Corporation Report Date: 04/28/14 <br /> Project: Schwartz GW 04/09/14 S27455, S27457 Work Order: C14040376 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.8 Batch:41107 <br /> Lab ID: C1 4040399-001 BMS3 12 Sample Matrix Spike Run: ICPMS2-C_140416A 04/16/14 21:56 <br /> Arsenic 0.483 mg/L 0.0010 97 70 130 <br /> Barium 0.649 mg/L 0.050 130 70 130 <br /> Copper 0.523 mg/L 0.0050 105 70 130 <br /> Lead 0.512 mg/L 0.0010 102 70 130 <br /> Manganese 2.26 mg/L 0.0010 91 70 130 <br /> Molybdenum 0.526 mg/L 0.0010 105 70 130 <br /> Silver 0.0463 mg/L 0.0010 93 70 130 <br /> Thallium 0.487 mg/L 0.00050 97 70 130 <br /> Uranium 0.551 mg/L 0.00030 110 70 130 <br /> Zinc 0.620 mg/L 0.010 124 70 130 <br /> Lab ID: C14040399-001 BMSD 12 Sample Matrix Spike Duplicate Run: ICPMS2-C_140416A 04/16/14 21:59 <br /> Aluminum 2.30 mg/L 0.030 92 70 130 2.6 20 <br /> Antimony 0.570 mg/L 0.0010 114 70 130 0.4 20 <br /> Arsenic 0.480 mg/L 0.0010 96 70 130 0.7 20 <br /> Barium 0.644 mg/L 0.050 129 70 130 0.9 20 <br /> Copper 0.517 mg/L 0.0050 103 70 130 1.1 20 <br /> Lead 0.504 mg/L 0.0010 101 70 130 1.6 20 <br /> Manganese 2.24 mg/L 0.0010 89 70 130 1.3 20 <br /> Molybdenum 0.518 mg/L 0.0010 104 70 130 1.5 20 <br /> Silver 0.0463 mg/L 0.0010 93 70 130 0.1 20 <br /> Thallium 0.478 mg/L 0.00050 96 70 130 1.9 20 <br /> Uranium 0.545 mg/L 0.00030 109 70 130 1.1 20 <br /> Zinc 0.615 mg/L 0.010 123 70 130 0.9 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 13 of 26 <br />