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wonliAnagyab.com Wt77'?Zuid 1 412-0111 • Billings, MT 000-735-4489 • Gasper, WY 888-235=0515 <br />A f6WIllim,shu 1l St c ri; SD 886-612-1225 • College Station, IX 888-690-2218. <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 04/08/11 <br />Project: Schwartz SW 03/08/11 S25677-S25684 Work Order: C11030280 <br />Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Oual <br />Method: E903.0 Batch: RA226-5233 <br />Sample ID: C11030162-003CMS Sample Matrix Spike Run: G542M_110315B 03/27/11 13:34 <br />Radium 226 12 pCi/L 90 70 130 <br />Sample ID: C1 1 03 01 62-003CMSD Sample Matrix Spike Duplicate Run: G542M_110315B 03/27/11 13:34 <br />Radium 226 13 pCi/L 101 70 130 11 24.8 <br />Sample ID: MB-RA226-5233 Method Blank Run: G542M_110315B 03/27/11 13:34 <br />Radium 226 0.010 pCi/L U <br />Radium 226 precision (±) 0.086 pCi/L <br />Radium 226 MDC 0.15 pCi/L <br />Sample ID: LCS-RA226-5233 Laboratory Control Sample Run: G542M_110315B 03/27/11 13:34 <br />Radium 226 5.6 pCi/L 89 85 115 <br />Method: E903.0 <br />Sample ID: C1 1 030211-003DMS Sample Matrix Spike <br />Radium 226 14 pCi/L <br />Sample ID: C11030211-003DMSD Sample Matrix Spike Duplicate <br />Radium 226 14 pCi/L <br />Sample ID: LCS-RA226-5235 Laboratory Control Sample <br />Radium 226 6.2 pCi/L <br />Sample ID: MB-RA226-5235 Method Blank <br />Radium 226 0.17 pCi/L <br />Radium 226 precision (±) 0.11 pCi/L <br />Radium 226 MDC 0.13 pCi/L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Batch: RA226-5235 <br />Run: TENNELEC-3 110315B 03/21/11 17:17 <br />109 70 130 <br />Run: TENNELEC-3_110315B 03/21/11 17:17 <br />111 70 130 1.7 25.1 <br />Run: TENNELEC-3_110315B 03/21/11 20:55 <br />95 85 115 <br />Run: TENNELEC-3 110315B 03/21/11 20:55 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 25 of 36 <br />