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Trust 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 <br />Report Date: <br />06/02/15 <br />Project: Schwartz - SW 5/1/15 S27880, S27882 <br />Work Order: <br />C15050078 <br />Analyte <br />Count Result Units RL <br />%REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E900.0 <br />Batch: GrAB-2015 <br />Lab ID: Th230-GrAB-2015 <br />Laboratory Control Sample <br />Run: G542M_150507A <br />05/09/15 05:46 <br />Gross Alpha <br />104 pCi/L <br />104 80 120 <br />Lab ID: Sr90-GrAB-2015 <br />Laboratory Control Sample <br />Run: G542M_150507A <br />05/09/15 05:46 <br />Gross Beta <br />189 pCi/L <br />97 80 120 <br />Lab ID: MB-GrAB-2015 <br />6 Method Blank <br />Run: G542M 150507A <br />05/09/15 05:46 <br />Gross Alpha <br />-0.4 pCi/L <br />U <br />Gross Alpha precision (±) <br />0.8 pCi/L <br />Gross Alpha MDC <br />1 pCi/L <br />Gross Beta <br />-2 pCi/L <br />U <br />Gross Beta precision (±) <br />2 pCi/L <br />Gross Beta MDC <br />3 pCi/L <br />Lab ID: 015050078-002DDUP <br />6 Sample Duplicate <br />Run: G542M_150507A <br />05/09/15 05:46 <br />Gross Alpha <br />17.6 pCi/L <br />24 <br />57.2 <br />Gross Alpha precision (t) <br />4.14 pCi/L <br />Gross Alpha MDC <br />2.08 pCi/L <br />Gross Beta <br />6.70 pCi/L <br />72 <br />62.2 R <br />Gross Beta precision (±) <br />1.56 pCi/L <br />Gross Beta MDC <br />2.86 pCi/L <br />Duplicate RPD is outside of the acceptance range for Gross Beta indicating a possible low precision <br />for the batch. The sample associated with this Duplicate has been <br />reanalyzed and the results for the reanalysis <br />are shown on the Analytical Report for that sample. <br />Lab ID: C15050085-0011MS <br />Sample Matrix Spike <br />Run: G542M_150507A <br />05/09/15 05:46 <br />Gross Alpha <br />100 pCi/L <br />100 70 130 <br />Lab ID: C15050085-0011MS <br />Sample Matrix Spike <br />Run: G542M_150507A <br />05/09/15 05:46 <br />Gross Beta <br />206 pCi/L <br />104 70 130 <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 />R - RPD exceeds advisory limit. <br />Page 24 of 31 <br />