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gumTrust our People. Trust our Data. ! Billings. MT 800.735.4489 • Casper, WY 888.235.0515 <br />College Station, TX 888.690.2218 • Gillette. WY 866.686.7175 • Helena, MT 877.472.0711 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 04/07/15 <br />Project: Schwartz -GW 3/26/15 S28160,S28161,S28166 Work Order: C15030861 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E900.0 <br />Batch: GrAB-1991 <br />Lab ID: Th230-GrAB-1991 <br />Laboratory Control Sample <br />Run: G5000W_150401A <br />04/03/15 16:36 <br />Gross Alpha <br />133 pCi/L <br />99 80 120 <br />Lab ID: Sr90-GrAB-1991 <br />Laboratory Control Sample <br />Run: G5000W_150401A <br />04/03/15 16:36 <br />Gross Beta <br />189 pCi/L <br />96 80 120 <br />Lab ID: MB-GrAB-1991 <br />6 Method Blank <br />Run: G5000W_150401A <br />04/03/15 16:36 <br />Gross Alpha <br />0.09 pCi/L <br />U <br />Gross Alpha precision (t) <br />0.7 pCi/L <br />Gross Alpha MDC <br />1 pCi/L <br />Gross Beta <br />-1.0 pCi/L <br />U <br />Gross Beta precision (t) <br />2 pCi/L <br />Gross Beta MDC <br />3 pCi/L <br />Lab ID: C15030678-00lDDUP <br />6 Sample Duplicate <br />Run: G5000W_150401A <br />04/03/15 16:36 <br />Gross Alpha <br />68.8 pCi/L <br />16 <br />50.6 <br />Gross Alpha precision (t) <br />13.9 pCi/L <br />Gross Alpha MDC <br />1.52 pCi/L <br />Gross Beta <br />18.1 pCi/L <br />0.4 <br />36.3 <br />Gross Beta precision (t) <br />2.31 pCi/L <br />Gross Beta MDC <br />2.63 pCi/L <br />Lab ID: C15030880-002DMS <br />Sample Matrix Spike <br />Run: G5000W_150401A <br />04/03/15 16:36 <br />Gross Alpha <br />148 pCi/L <br />80 70 130 <br />Lab ID: C15030880-002DMS <br />Sample Matrix Spike <br />Run: G5000W_150401A <br />04/03/15 16:36 <br />Gross Beta <br />204 pCi/L <br />101 70 130 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 11 of 17 <br />