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wxwene<glrlab.can Helena, frR 877 -472 -0711 •Billings, MT 600- 735 -4489 • Casper, WY 088 -235 -0515 <br />- Sm yd�Y Gillette, WY 866 -688 -7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 088 - 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz -GW 12/11/13 S27332 <br />Report Date: 01/08/14 <br />Work Order: C13120406 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Quay <br />Method: RA -05 <br />Batch: RA228 -4580 <br />Sample ID: LCS- 228 -RA226 -6999 <br />Laboratory Control Sample <br />Run: TENNELEC- 3_131213B <br />12/31/13 10:22 <br />Radium 228 <br />8.5 pCi /L <br />104 80 120 <br />Sample ID: MB -RA226 -6999 <br />3 Method Blank <br />Run: TENNELEC- 3_131213B <br />12/31/13 10:22 <br />Radium 228 <br />0.9 pCi /L <br />U <br />Radium 228 precision ( ±) <br />0.9 pCi /L <br />Radium 228 MDC <br />2 pCi /L <br />Sample ID: C13120407- 001AMS <br />Sample Matrix Spike <br />Run: TENNELEC- 3_131213B <br />12/31/13 10:22 <br />Radium 228 <br />16 pCi /L <br />110 70 130 <br />Sample ID: C13120407- 001AMSD <br />Sample Matrix Spike Duplicate <br />Run: TENNELEC-3_131213B <br />12/31/13 10:22 <br />Radium 228 <br />15 pCi /L <br />101 70 130 8.9 <br />40.9 <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 />