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• www.ewzlab.com Helena,Mf 877-472-0711 •Billings,MT 800-735-4489•Casper,WY 888-235-8515 <br /> Gillette,WY 866-686-7175•Rapid City,SO 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: 10/24/14 <br /> Project: Schwartz-GW 10/1/14 S27710 Work Order: C14100097 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: RA-05 Batch: RA228-4786 <br /> Lab ID: LCS-228-RA226-7399 Laboratory Control Sample Run:TENNELEC-3_141006F 10/15/14 09:45 <br /> Radium 228 7.6 pCi/L 111 80 120 <br /> Lab ID: MB-RA226-7399 3 Method Blank Run:TENNELEC-3_141006F 10/15/14 09:45 <br /> Radium 228 0.2 pCi/L U <br /> Radium 228 precision(±) 1 pCi/L <br /> Radium 228 MDC 2 pCi/L <br /> Lab ID: C14100124-001AMS Sample Matrix Spike Run:TENNELEC-3_141006F 10/15/14 09:45 <br /> Radium 228 14.9 pCi/L 105 70 130 <br /> Lab ID: C14100124-001AMSD Sample Matrix Spike Duplicate Run:TENNELEC-3_141006F 10/15/14 09:45 <br /> Radium 228 15.5 pCi/L 110 70 130 4.3 44.9 <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 /> D-in of vi <br />