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-�CeAvAEV-W�3- www.wdab.com Helena,IJIT 877472-0711 •Billings,MY 800-7354480•Casper,WY 888-235-0515 <br /> f a°'&W A028"102 f Gillette,WY 866-666-7175•Rapid City,SD$88-672-1225•College Station,TX 888-600-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 05/21/14 <br /> Project: Schwartz-SW 5/1/14 S27466 Work Order: C14050047 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E903.0 Batch: RA226-7178 <br /> Lab ID: C14050046-001 DMS Sample Matrix Spike Run:G542M_140505A 05/12/14 07:49 <br /> Radium 226 24 pCi/L 106 70 130 <br /> Lab ID: C14050046-001 DMSD Sample Matrix Spike Duplicate Run:G542M_140505A 05/12/14 07:50 <br /> Radium 226 24 pCi/L 106 70 130 0.3 21.2 <br /> Lab ID: LCS-RA226-7178 Laboratory Control Sample Run:G542M_140505A 05/12/14 07:50 <br /> Radium 226 11 pCi/L 98 80 120 <br /> Lab ID: MB-RA226-7178 3 Method Blank Run:G542M_140505A 05/12/14 07:50 <br /> Radium 226 0.09 pCi/L U <br /> Radium 226 precision(±) 0.2 pCi/L <br /> Radium 226 MDC 0.2 pCi/L <br /> Method: E903.0 Batch: RA226-7180 <br /> Lab ID: C14050046-001GMS Sample Matrix Spike Run:G542M_140507A 05/19/14 07:12 <br /> Radium 226 23 pCi/L 103 70 130 <br /> Lab ID: C14050046-001GMSD Sample Matrix Spike Duplicate Run:G542M_140507A 05/19/14 07:12 <br /> Radium 226 24 pCi/L 103 70 130 0.3 20.8 <br /> Lab ID: MB-RA226-7180 3 Method Blank Run:G542M_140507A 05/19/14 08:53 <br /> Radium 226 0.05 pCi/L U <br /> Radium 226 precision(±) 0.1 pCi/L <br /> Radium 226 MDC 0.2 pCi/L <br /> Lab ID: LCS-RA226-7180 Laboratory Control Sample Run:G542M_140507A 05/19/14 08:53 <br /> Radium 226 12 pCi/L 103 80 120 <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 23 of 27 <br />