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ENERGY <br />Trust our People. Trust our Data. <br />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 <br />Project: Schwartz -SW 10/02/15 S28439 -S28441 <br />Analyte <br />Count Result Units <br />Report Date: 10/19/15 <br />Work Order: C15100183 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E900.0 <br />Lab ID: Th230-GrAB-2151 <br />Gross Alpha <br />Lab ID: Sr90-GrAB-2151 <br />Gross Beta <br />Lab ID: MB-GrAB-2151 <br />Gross Alpha <br />Gross Alpha precision (±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision (±) <br />Gross Beta MDC <br />Lab ID: C15100063-001 FDUP <br />Gross Alpha <br />Gross Alpha precision (±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision (±) <br />Gross Beta MDC <br />Lab ID: C15100183-002GMS <br />Gross Alpha <br />Lab ID: C15100183-002GMS <br />Gross Beta <br />Laboratory Control Sample <br />88.3 pCi/L <br />Laboratory Control Sample <br />182 pCi/L <br />6 Method Blank <br />0.3 <br />0.7 <br />1 <br />-0 6 <br />2 <br />3 <br />pCi/L <br />pCi/L <br />pCi/L <br />pCi/L <br />pCi/L <br />pCi/L <br />6 Sample Duplicate <br />2 07 <br />1 33 <br />1.49 <br />3.69 <br />1 68 <br />2 81 <br />pCi/L <br />pCi/L <br />pCi/L <br />pCi/L <br />pCi/L <br />pCi/L <br />Sample Matrix Spike <br />128 pCi/L <br />Sample Matrix Spike <br />197 pCi/L <br />Run. G542M_151012B <br />88 80 120 <br />Run• G542M_151012B <br />94 80 120 <br />Run. G542M_151012B <br />Run•G542M_151012B <br />Run: G542M_151012B <br />90 70 130 <br />Run: G542M_151012B <br />95 70 130 <br />Batch GrAB-2151 <br />10/14/15 0720 <br />10/14/15 07 20 <br />10/14/15 0720 <br />U <br />U <br />10/14/15 07 20 <br />29 123.5 <br />66 116 2 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit <br />U - Not detected at minimum detectable concentration <br />10/14/15 07.20 <br />10/14/15 0720 <br />Page 13 of 19 <br />