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• www.enerulab.corn Helena,W 877-472-0711 -Billings,MT 800-735-4489-Casper,WY 888-235-0515 <br /> Mralyale,+fual�onS�aa r931 Gillette,WY 866-666-7175•Rapid City,SD 886-672-1225•College Station,TX 888-690-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 08/21/14 <br /> Project: Schwartz-GW 7/29/14 S27612 Work Order: C14071021 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E903.0 Batch:RA226-73021 <br /> Lab ID: C14071021-001EMS Sample Matrix Spike Run:G5000W_140806A 08/12/14 11:57 <br /> Radium 226 21 pCi/L 90 70 130 <br /> Lab ID: C14071021-001EMSD Sample Matrix Spike Duplicate Run:G5000W_140806A 08/12/14 13:57 <br /> Radium 226 22 pCi/L 94 70 130 4.4 23.9 <br /> Lab ID: MB-RA226-7302 3 Method Blank Run:G5000W_140806A 08/12/14 13:57 <br /> Radium 226 0.1 pCi/L U <br /> Radium 226 precision(±) 0.2 pCi/L <br /> Radium 226 MDC 0.3 pCi/L <br /> Lab ID: LCS-RA226-7302 Laboratory Control Sample Run:G5000W_140806A 08/12/14 13:57 <br /> Radium 226 10 pCi/L 89 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 19 of 22 <br />