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www.ener&ab.com Helena,NT 877-472-0711 •Billings,MT 800-735-4489•Casper,WY 888-235-8515 <br /> - Ae>rya�EYcdAerasmc.lase Gillette,WY 866-686-7175•Rapid City,SO 886-672-1225•College Station,A 8811490-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 06/05/14 <br /> Project: Schwartz 5/14/14 S27476-S27484 Work Order: C14050479 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E903.0 Batch:RA226-7192 <br /> Lab ID: C14050479-009CMS Sample Matrix Spike Run:BERTHOLD 770-2_140516A 05/27/14 08:54 <br /> Radium 226 24 pCi/L 106 70 130 <br /> Lab ID: C14050479-009CMSD Sample Matrix Spike Duplicate Run:BERTHOLD 770-2_140516A 05/27/14 08:54 <br /> Radium 226 26 pCi/L 116 70 130 9.3 21 <br /> Lab ID: MB-RA226-7192 3 Method Blank Run:BERTHOLD 770-2 140516A 05/27/14 10:40 <br /> Radium 226 0.2 pCi/L <br /> Radium 226 precision(±) 0.1 pCi/L <br /> Radium 226 MDC 0.2 pCi/L <br /> Lab ID: LCS-RA226-7192 Laboratory Control Sample Run:BERTHOLD 770-2_140516A 05/27/14 10:40 <br /> Radium 226 11 pCi/L 96 80 120 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 12 of 23 <br />