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• WWW energylab.Com Helena,MT 877472-0711 •Billings,MT 808-735-4489•Casper,WY 888-235-0515 <br /> ^ ba"W&caftA rOw 1W 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: 06/02/14 <br /> Project: Schwartz-SW 5/1/14 S27472 thru S27475 and S27467 Work Order: C14050155 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: RA-05 Batch: RA228-4661 <br /> Lab ID: LCS-228-RA226-7180 Laboratory Control Sample Run:TENNELEC-3_140507C 05/12/14 12:08 <br /> Radium 228 8.4 pCi/L 112 80 120 <br /> Lab ID: MB-RA226-7180 3 Method Blank Run:TENNELEC-3 140507C 05/12/14 12:08 <br /> Radium 228 0.5 pCi/L U <br /> Radium 228 precision(±) 0.8 pCi/L <br /> Radium 228 MDC 1 pCi/L <br /> Lab ID: C14050093-001EMS Sample Matrix Spike Run:TENNELEC-3_140507C 05/12/14 12:08 <br /> Radium 228 17 pCi/L 113 70 130 <br /> Lab ID: C14050093-001EMSD Sample Matrix Spike Duplicate Run:TENNELEC-3_140507C 05/12/14 12:08 <br /> Radium 228 17 pCi/L 112 70 130 0.4 35.8 <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 28 of 35 <br />