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www.energylab.com <br />r ? Anl"czl Exealleaee Shea 1932 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartzwalder Water Monitoring Program-Discharge <br />Analvte Count Result Units <br />Report Date: 12/28/10 <br />Work order: C10120059 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: RA-05 <br />Sample ID: LCS-228-RA226-5050 Laboratory Control Sample <br />Radium 228 7.5 pCi/L <br />Sample ID: MB-RA226-5050 3 Method Blank <br />Radium 228 0.7 pCi/L <br />Radium 228 precision (±) 0.8 pCi/L <br />Radium 228 MDC 1 pCi/L <br />Sample ID: C10120061-001FMS Sample Matrix Spike <br />Radium 228 17 pCi/L <br />Sample ID: C10120061-001FMSD Sample Matrix Spike Duplicate <br />Radium 228 17 pCi/L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-z:t4-uora <br />Gillette, WY 866-686-7175 • Rapid City, SD 886-672-1225 • College Station, TX 888-690-2218 <br />tsaicn: rsr+cco-oz) 1 o <br />Run: TENNELEC-3_101208A 12/13/10 11:22 <br />95 70 130 <br />Run: TENNELEC-3_101208A 12/13/10 11:22 <br />U <br />Run: TENNELEC-3_101208A 12/13/10 11:22 <br />112 70 130 <br />Run: TENNELEC-3_101208A 12/13/10 11:22 <br />114 70 130 1.4 37.2 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 5 of 8