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ENERGY Trust our People.Trust our Data, I Billings,MT 800.735.4489•Casper,WY 888.235.0515 <br /> -- College Station.TX 888.690.2218•Gillette,WY 866.686.7175•Helena.MT 817.412.0711 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 04/04/16 <br /> Project: Schwartz-GW 3/16/16 S28711, S28718, S28720 Work Order: C16030565 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E900.0 Batch:GrAB-2212 <br /> Lab ID: Th230-GrAB-2212 Laboratory Control Sample Run.G5000W_160328A 03/30/16 02 39 <br /> Gross Alpha 113 pCi/L 113 80 120 <br /> Lab ID: Sr90-GrAB-2212 Laboratory Control Sample Run:G5000W_160328A 03/30/16 02:39 <br /> Gross Beta 191 pCi/L 98 80 120 <br /> Lab ID: MB-GrAB-2212 6 Method Blank Run:G5000W_160328A 03/30/16 02 39 <br /> Gross Alpha 0.8 pCi/L U <br /> Gross Alpha precision(±) 0.8 pCi/L <br /> Gross Alpha MDC 1 pCi/L <br /> Gross Beta 1 pCi/L U <br /> Gross Beta precision(±) 2 pCi/L <br /> Gross Beta MDC 3 pCi/L <br /> Lab ID: C16030457-003DMS Sample Matrix Spike Run:G5000W160328A 03/30/16 02 39 <br /> Gross Alpha 385 pCi/L 38 70 130 S <br /> -Spike response is outside of the acceptance range for this analysis Since the LCS and the RPD recoveries are acceptable,the response is considered to be matrix related <br /> The batch is approved <br /> Lab ID: 016030457-003DMSD Sample Matrix Spike Duplicate Run:G5000W_160328A 03/30/16 02:39 <br /> Gross Alpha 392 pCi/L 45 70 130 2.0 49 S <br /> -Spike response is outside of the acceptance range for this analysis Since the LCS and the RPD recoveries are acceptable,the response is considered to be matrix related <br /> The batch is approved <br /> Lab ID: C16030457-003DMS Sample Matrix Spike Run:G5000W_160328A 03/30/16 02 39 <br /> Gross Beta 245 pCi/L 97 70 130 <br /> Lab ID: C16030457-003DMSD Sample Matrix Spike Duplicate Run:G5000W_160328A 03/30/16 02:39 <br /> Gross Beta 252 pCi/L 101 70 130 2.8 30.4 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration S-Spike recovery outside of advisory limits. <br /> U-Not detected at minimum detectable concentration <br /> Page 12 of 19 <br />