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11=10" www.ene dsb.com Helena,MT 877-472-0711 -Billings,MT 600-735-4489-Casper,WY 888-235-0515 <br /> $Am Gillette,WY 866-666-7175-Rapid City,SO 886-672-1225-College Station,TX 888-696-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 04/28/14 <br /> Project: Schwartz GW 04/09/14 S27455, S27457 Work Order: C14040376 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E900.0 Batch:GrAB-1724RI <br /> Lab ID: Th230-GrAB-1724 Laboratory Control Sample Run:TENNELEC-3_140422A 04/25/14 17:27 <br /> Gross Alpha 135 pCi/L 115 80 120 <br /> Lab ID: Sr90-GrAB-1724 Laboratory Control Sample Run:TENNELEC-3_140422A 04/25/14 17:27 <br /> Gross Beta 169 pCi/L 95 80 120 <br /> Lab ID: MB-GrAB-1724 6 Method Blank Run:TENNELEC-3 140422A 04/25/14 17:27 <br /> Gross Alpha 3 pCi/L <br /> Gross Alpha precision(±) 0.8 pCi/L <br /> Gross Alpha MDC 1.0 pCi/L <br /> Gross Beta -0.4 pCi/L U <br /> Gross Beta precision(±) 1 pCi/L <br /> Gross Beta MDC 2 pCi/L <br /> Lab ID: C14040086-003ADUP 6 Sample Duplicate Run:TENNELEC-3_140422A 04/25/14 17:28 <br /> Gross Alpha 645 pCi/L 2.8 18.5 <br /> Gross Alpha precision(±) 27.4 pCi/L <br /> Gross Alpha MDC 11.3 pCi/L <br /> Gross Beta 116 pCi/L 9.5 35.7 <br /> Gross Beta precision(±) 15.9 pCi/L <br /> Gross Beta MDC 21.7 pCi/L <br /> Lab ID: C14040415-001FMS Sample Matrix Spike Run:TENNELEC-3_140422A 04/25/14 17:27 <br /> Gross Alpha 356 pCi/L 84 70 130 <br /> Lab ID: C14040415-001FMSD Sample Matrix Spike Duplicate Run:TENNELEC-3_140422A 04/25/14 17:27 <br /> Gross Alpha 292 pCi/L 32 70 130 20 20 S <br /> -Sample activity for this radionuclide is much larger than the spike activity added. Therefore the matrix spike recovery could not be calculated. The LCS and the RPD of the <br /> MS/MSD pair are acceptable;this batch is approved. <br /> Lab ID: C14040415-001FMS Sample Matrix Spike Run:TENNELEC-3_140422A 04/25/14 17:28 <br /> Gross Beta 264 pCi/L 107 70 130 <br /> Lab ID: C14040415-001FMSD Sample Matrix Spike Duplicate Run:TENNELEC-3_140422A 04/25/14 17:28 <br /> Gross Beta 258 pCi/L 104 70 130 2.4 13.5 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration S-Spike recovery outside of advisory limits. <br /> U-Not detected at minimum detectable concentration <br /> Page 20 of 26 <br />