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• www.erserulab.com � Helena,MT 877-472-0711 •Billings,MT 600-735-4489•Casper,WY 888-235-0515 <br /> "~ '�•f A 1951 Gillette,WY 866-686 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: 06/13/14 <br /> Project: Schwartz-GW 5/16/14 S27488 Work Order: C14050560 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: RA-05 Batch: RA228-4667 <br /> Lab ID: LCS-228-RA226-7193 Laboratory Control Sample Run:TENNELEC-3_140519A 05/22/14 12:58 <br /> Radium 228 6.2 pCi/L 86 80 120 <br /> Lab ID: MB-RA226-7193 3 Method Blank Run:TENNELEC-3_140519A 05/22/14 12:58 <br /> Radium 228 0.2 pCi/L U <br /> Radium 228 precision(±) 0.5 pCi/L <br /> Radium 228 MDC 0.8 pCi/L <br /> Lab ID: C14050559-001KDUP 3 Sample Duplicate Run:TENNELEC-3_140519A 05/22/14 12:58 <br /> Radium 228 0.6 pCi/L 42 202 U <br /> Radium 228 precision(±) 0.5 pCi/L <br /> Radium 228 MDC 0.8 pCi/L <br /> Lab ID: C14050560-001DMS Sample Matrix Spike Run:TENNELEC-3_140519A 05/22/14 12:58 <br /> Radium 228 11.9 pCi/L 80 70 130 <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 10 of 13 <br />