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• www.enerdab.com Helena,UT$77-472-0711 •Billings,MT 800-735-4488-Casper,WY 888-235-0516 <br /> AwfftW E=MWM X'1952 Gillette,WY 866-666-7175-Rapid City,SD 888-672-1225-College Station,A 868-680-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 07/11/14 <br /> Project: Schwartz-GW 6/16/14 S27576 Work Order: C14060740 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E903.0 Batch: RA226-7238 <br /> Lab ID: C14060746-001DMS Sample Matrix Spike Run:BERTHOLD 770-2_140623B 07/08/14 16:26 <br /> Radium 226 22 pCi/L 98 70 130 <br /> Lab ID: C14060746-001DMSD Sample Matrix Spike Duplicate Run: BERTHOLD 770-2_140623B 07/08/14 16:26 <br /> Radium 226 22 pCi/L 97 70 130 0.8 22 <br /> Lab ID: MB-RA226-7238 3 Method Blank Run:BERTHOLD 770-2 140623B 07/08/14 16:26 <br /> Radium 226 0.07 pCi/L U <br /> Radium 226 precision(±) 0.1 pCi/L <br /> Radium 226 MDC 0.2 pCi/L <br /> Lab ID: LCS-RA226-7238 Laboratory Control Sample Run:BERTHOLD 770-2_140623B 07/08/14 17:57 <br /> Radium 226 12 pCi/L 101 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 9 of 13 <br />