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• www.energylab.com Helena,MT 877-472-0711 •Billings,MT 800-735-4409 a Casper,WY 888-235-0515 <br /> "1Q'�°�'teist Gillette,WY 866-686-7175•Rapid City,SD 888-672-1225•College Station,A 888-600-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 07/29/14 <br /> Project: Schwartz -GW 07/03/14 S27602 Work Order: C14070210 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: RA-05 Batch: RA228-4712 <br /> Lab ID: LCS-228-RA226-7268 Laboratory Control Sample Run:TENNELEC-3_140714F 07/21/14 11:58 <br /> Radium 228 8.6 pCi/L 114 80 120 <br /> Lab ID: MB-RA226-7268 3 Method Blank Run:TENNELEC-3 140714F 07/21/14 11:58 <br /> Radium 228 0.7 pCi/L U <br /> Radium 228 precision(±) 0.8 pCi/L <br /> Radium 228 MDC 1 pCi/L <br /> Lab ID: C14070230-003EMS Sample Matrix Spike Run:TENNELEC-3_140714F 07/21/14 11:58 <br /> Radium 228 23 pCi/L 114 70 130 <br /> Lab ID: C14070230-003EMSD Sample Matrix Spike Duplicate Run:TENNELEC-3_140714F 07/21/14 11:58 <br /> Radium 228 23 pCi/L 111 70 130 1.5 29.4 <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 11 of 14 <br />