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ENERGY 4: 0' 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 866.686.1175•Helena.MT 877.472.0711 <br /> QA/QC Summary Report <br /> Prepared by Casper,WY Branch <br /> Client: Cotter Corporation Report Date: 01/21/16 <br /> Project: Schwartz-GW 1/7/16 S28557,S28560 Work Order: C16010232 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E900.0 Batch:GrAB-2189 <br /> Lab ID: Th230-GrAB-2189 Laboratory Control Sample Run• G542M_160112A 01/14/16 00:48 <br /> Gross Alpha 103 pCi/L 97 80 120 <br /> Lab ID: Sr90-GrAB-2189 Laboratory Control Sample Run: G542M_160112A 01/14/16 00:48 <br /> Gross Beta 179 pCi/L 92 80 120 <br /> Lab ID: MB-GrAB-2189 6 Method Blank Run:G542M 160112A 01/14/16 00:48 <br /> Gross Alpha -0.8 pCi/L U <br /> Gross Alpha precision(±) 0.7 pCi/L <br /> Gross Alpha MDC 1 pCi/L <br /> Gross Beta 0.9 pCi/L U <br /> Gross Beta precision(±) 2 pCi/L <br /> Gross Beta MDC 3 pCi/L <br /> Lab ID: C16010239-003ADUP 6 Sample Duplicate Run:G542M_160112A 01/14/16 00:48 <br /> Gross Alpha 2.40 pCi/L 7.2 130.9 <br /> Gross Alpha precision(±) 1 56 pCi/L <br /> Gross Alpha MDC 1.73 pCi/L <br /> Gross Beta 1.97 pCi/L 13 150.4 U <br /> Gross Beta precision(±) 1.45 pCi/L <br /> Gross Beta MDC 2.73 pCi/L <br /> Lab ID: 016010239-004AMS Sample Matrix Spike Run. G542M_160112A 01/14/16 00'48 <br /> Gross Alpha 94.0 pCi/L 80 70 130 <br /> Lab ID: 016010239-004AMS Sample Matrix Spike Run:G542M_160112A 01/14/16 00 48 <br /> Gross Beta 201 pCi/L 101 70 130 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration U-Not detected at minimum detectable concentration <br /> Page 11 of 17 <br />