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9MMIff wwwAneWaD.com Helena, MT B77-4724711 • Billings, MT 600-735-4419 • Casper, WY 888-235-0515 <br />11V Gillette, wy 866-666-7175 • Rapid City, 80 88B-672-1225 • College Station, TX 888-660-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 04/11 /11 <br />S h rt SW 3/10/2011 S25686-S25688 Work Order: C11030378 <br />Project. c wa z- <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Quai <br />Method: E900.0 Batch: GrAB-1057 <br />Sample ID: MB-GrAB-1057 6 Method Blank Run: G5000W_110315A 03/16/11 22:15 <br />Gross Alpha -0.593 pCi/L U <br />Gross Alpha precision (±) 0.642 pCi/L <br />Gross Alpha MDC 1.17 pCi/L <br />Gross Beta -0.637 pCi/L U <br />Gross Beta precision (±) 1.39 pCi/L <br />Gross Beta MDC 2.35 pCi/L <br />Sample ID: Th230-GrAB-1057 Laboratory Control Sample Run: G5000W_110315A 03/16/11 22:15 <br />Gross Alpha 96.8 pCi/L 96 80 120 <br />Sample ID: Cs137-GrAB-1057 Laboratory Control Sample Run: G5000W_110315A 03/16/11 22:15 <br />Gross Beta 68.2 pCi/L 78 80 120 S <br />- LCS response is outside of the accepta nce range for this analysis. Since the MB, MS, and MSD are acceptable the batch is approved. <br />Sample ID: C1 1030360-001 AMS Sample Matrix Spike Run: G5000W_110315A 03/16/11 22:15 <br />Gross Alpha 128 pCi/L 116 70 130 <br />Sample ID: C11030360-001AMSD Sample Matrix Spike Duplicate Run: G5000W_110315A 03/16/11 22:15 <br />Gross Alpha 127 pCi/L 115 70 130 1.0 16.7 <br />Sample ID: C11030360-001AMS Sample Matrix Spike Run: G5000W_110315A 03/16/11 22:15 <br />Gross Beta 102 pCi/L 103 70 130 <br />Sample ID: C11030360-001AMSD Sample Matrix Spike Duplicate Run: G5000W_110315A 03/16/11 22:15 <br />Gross Beta 105 pCi/L 106 70 130 2.8 15.3 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 21 of 29