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ENERGY ; ' 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 866.686.7115•Helena,MT 817.472.0711 <br /> QA/QC Summary Report <br /> Prepared by Casper,WY Branch <br /> Client: Cotter Corporation Report Date: 02/25/16 <br /> Project: Schwartz- SW 02/09/16 S28676 Work Order: C16020332 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E900.0 Batch:GrAB-2200 <br /> Lab ID: Th230-GrAB-2200 Laboratory Control Sample Run:G5000W_160223A 02/24/16 23:40 <br /> Gross Alpha 112 pCi/L 106 80 120 <br /> Lab ID: Sr90-GrAB-2200 Laboratory Control Sample Run.G5000W_160223A 02/24/16 23:40 <br /> Gross Beta 188 pCi/L 97 80 120 <br /> Lab ID: MB-GrAB-2200 6 Method Blank Run.G5000W_160223A 02/24/16 23:40 <br /> Gross Alpha -0.3 pCi/L U <br /> Gross Alpha precision(±) 0.7 pCi/L <br /> Gross Alpha MDC 1 pCi/L <br /> Gross Beta 0.1 pCi/L U <br /> Gross Beta precision(±) 2 pCi/L <br /> Gross Beta MDC 3 pCi/L <br /> Lab ID: C16020325-004CMS Sample Matrix Spike Run G5000W_160223A 02/24/16 2340 <br /> Gross Alpha 337 pCi/L 106 70 130 <br /> Lab ID: 016020325-004CMSD Sample Matrix Spike Duplicate Run:G5000W_160223A 02/24/16 23 40 <br /> Gross Alpha 329 pCi/L 103 70 130 2.5 49 7 <br /> Lab ID: C16020325-004CMS Sample Matrix Spike Run:G5000W_160223A 02/24/16 23:40 <br /> Gross Beta 467 pCi/L 97 70 130 <br /> Lab ID: 016020325-004CMSD Sample Matrix Spike Duplicate Run:G5000W_160223A 02/24/16 2340 <br /> Gross Beta 511 pCi/L 107 70 130 9.1 30 5 <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 />