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Trust our People. Trust our Data. Billings, MT 800.735.4489 • Casper. WY 888.235.0515 <br />www.energyiab.com College Station, TX 888.690.2218 • Gillette, WY 866.686.7175 • Helena, MT 811.471.0711 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz - GW 4/21/15 S27905, S27908 <br />Analyte <br />Count Result <br />Units <br />Method: E900.0 <br />Lab ID: Th230-GrAB-2006 <br />Laboratory Control <br />Sample <br />Gross Alpha <br />99.0 <br />pCi/L <br />Lab ID: Sr90-GrAB-2006 <br />Laboratory Control <br />Sample <br />Gross Beta <br />191 <br />pCi/L <br />Lab ID: MB-GrAB-2006 <br />6 Method Blank <br />Gross Alpha <br />2 <br />pCi/L <br />Gross Alpha precision (t) <br />1 <br />pCi/L <br />Gross Alpha MDC <br />0.9 <br />pCi/L <br />Gross Beta <br />-2 <br />pCi/L <br />Gross Beta precision (t) <br />1 <br />pCi/L <br />Gross Beta MDC <br />2 <br />pCi/L <br />Lab ID: C15040742-001 FDUP <br />6 Sample Duplicate <br />Gross Alpha <br />37.6 <br />pCi/L <br />Gross Alpha precision (t) <br />7.59 <br />pCi/L <br />Gross Alpha MDC <br />0.931 <br />pCi/L <br />Gross Beta <br />12.7 <br />pCi/L <br />Gross Beta precision (t) <br />2.00 <br />pCi/L <br />Gross Beta MDC <br />2.66 <br />pCi/L <br />Lab ID: C15040742-002FMS <br />Sample Matrix Spike <br />Gross Alpha <br />164 <br />pCi/L <br />Lab ID: C15040742-002FMS <br />Sample Matrix Spike <br />Gross Beta <br />248 <br />pCi/L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 05/20/15 <br />Work Order: C15040681 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: GrAB-2006 <br />Run: TENNELEC-3_150427A 04/29/15 00:16 <br />83 80 120 <br />Run: TENNELEC-3_150427A 04/29/15 00:16 <br />98 80 120 <br />Run: TENNELEC-3 150427A 04/29/15 00:16 <br />U <br />Run: TENNELEC-3_150427A 04/29/15 00:16 <br />1.7 50.3 <br />17 40.6 <br />Run: TENNELEC-3_150427A 04/29/15 00:17 <br />106 70 130 <br />Run: TENNELEC-3_150427A 04/29/15 00:17 <br />116 70 130 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 15 of 21 <br />