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• www.em6ob.com Helena,Mf$77-472-0711 •Billings,MT 800-735-4489•Casper,WY 888-235-0515 <br /> Gillette,WY 866-686 1175•Rapid City,SD 888-672-1225•College Station,TX 888-690-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 04/22/14 <br /> Project: Schwartz-GW 4/8/14 S27456 Work Order: C14040300 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E900.0 Batch:GrAB-1719R <br /> Lab ID: Th230-GrAB-1719 Laboratory Control Sample Run:TENNELEC-3_140415A 04/19/14 00:18 <br /> Gross Alpha 120 pCi/L 102 80 120 <br /> Lab ID: Sr90-GrAB-1719 Laboratory Control Sample Run:TENNELEC-3_140415A 04/19/14 00:18 <br /> Gross Beta 147 pCi/L 83 80 120 <br /> Lab ID: MB-GrAB-1719 6 Method Blank Run:TENNELEC-3 140415A 04/19/14 00:18 <br /> Gross Alpha 2 pCi/L <br /> Gross Alpha precision(±) 0.8 pCi/L <br /> Gross Alpha MDC 1.0 pCi/L <br /> Gross Beta -0.2 pCi/L U <br /> Gross Beta precision (±) 1 pCi/L <br /> Gross Beta MDC 2 pCi/L <br /> Lab ID: C14030820-001DDUP 6 Sample Duplicate Run:TENNELEC-3_140415A 04/19/14 00:18 <br /> Gross Alpha 3300 pCi/L 18 20 <br /> Gross Alpha precision(±) 25.6 pCi/L <br /> Gross Alpha MDC 1.94 pCi/L <br /> Gross Beta 1170 pCi/L 15 20 <br /> Gross Beta precision(±) 9.94 pCi/L <br /> Gross Beta MDC 2.94 pCi/L <br /> Lab ID: C14040261-004AMS Sample Matrix Spike Run:TENNELEC-3_140415A 04/19/14 00:18 <br /> Gross Alpha 123 pCi/L 73 70 130 <br /> Lab ID: C14040261-004AMSD Sample Matrix Spike Duplicate Run:TENNELEC-3_140415A 04/19/14 00:18 <br /> Gross Alpha 152 pCi/L 99 70 130 21 17.4 R <br /> -The RPD for the MSD is high. The individual spike recoveries are within range,the MB is acceptable,and the LCS is acceptable therefore the batch is approved. <br /> Lab ID: C14040261-004AMS Sample Matrix Spike Run:TENNELEC-3_140415A 04/19/14 00:18 <br /> Gross Beta 191 pCi/L 98 70 130 <br /> Lab ID: C14040261-004AMSD Sample Matrix Spike Duplicate Run:TENNELEC-3_140415A 04/19/14 00:18 <br /> Gross Beta 211 pCi/L 110 70 130 9.9 13.9 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration R-RPD exceeds advisory limit. <br /> U-Not detected at minimum detectable concentration <br /> Page 18 of 23 <br />