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ENERGY <br />Trust our People. Trust our Data. <br />Billings, MT 800.135.4489 • 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: 10/30/15 <br />Project: Schwartz - SW 10/7/15 S28471 - S28472 Work Order: C15100364 <br />Analyte Count Result Units <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E900.0 <br />Lab ID: Th230-GrAB-2154 <br />Gross Alpha <br />Lab ID: Sr90-GrAB-2154 <br />Gross Beta <br />Lab ID: MB-GrAB-2154 <br />Gross Alpha <br />Gross Alpha precision (±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision (±) <br />Gross Beta MDC <br />Laboratory Control Sample Run• G542M_151013A <br />100 pCi/L 101 80 120 <br />Batch: GrAB-2154 <br />10/14/15 19:46 <br />Laboratory Control Sample Run. G542M_151013A 10/14/15 19.46 <br />183 pCi/L 94 80 120 <br />6 Method Blank <br />-0.3 pCi/L <br />0 7 pCi/L <br />1 pCi/L <br />-0 5 pCi/L <br />2 pCi/L <br />3 pCi/L <br />Lab ID: C15100293-001ADUP 6 Sample Duplicate <br />Gross Alpha 2.82 pCi/L <br />Gross Alpha precision (±) 1 44 pCi/L <br />Gross Alpha MDC 1 53 pCi/L <br />Gross Beta 1 80 pCi/L <br />Gross Beta precision (±) 1.40 pCi/L <br />Gross Beta MDC 2 72 pCi/L <br />- The Gross Beta for Sample and the Duplicate are both below the MDC The RPD is acceptable <br />Lab ID: Cl 5100364-002FMS Sample Matrix Spike <br />Run' G542M_151013A <br />Run G542M_151013A <br />Run. G542M_151013A <br />Gross Alpha 117 pCi/L 96 70 130 <br />Lab ID: C15100364-002FMS Sample Matrix Spike <br />Run. G542M_151013A <br />Gross Beta 198 pCi/L 98 70 130 <br />10/14/15 19 46 <br />U <br />U <br />10/14/15 19:46 <br />6.2 106 4 <br />1300 157 8 UR <br />10/14/15 19.46 <br />10/14/15 1946 <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 12 of 18 <br />