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www.ener&b.com t Helena, MT 611472 -0711 • Billings, W 600- 735 -4489 • Casper, WY 888- 235 -0515 <br />Aw�"Ewahm Am Gillette, WY 866 - 866 -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: 08/29/13 <br />Project: Schwartz -GW 8/2/13 S27063 Work Order: C13080122 <br />Analyte Count Result Units RL ° /diEC Low Limit High Limit RPD RPDLimit Qual <br />Method: RA -05 Batch: RA228 -4484 <br />Sample ID: LCS- 228 -RA226 -6787 Laboratory Control Sample Run: TENNELEC- 3_130812C 08/20/13 12:06 <br />Radium 228 8.3 pCi /L 104 80 120 <br />Sample ID: MB -RA226 -6787 <br />Radium 228 <br />Radium 228 precision ( ±) <br />Radium 228 MDC <br />Sample ID: C13080065- 001GMS <br />Radium 228 <br />Sample ID: C13080065- 001GMSD <br />Radium 228 <br />3 Method Blank <br />0.2 pCi /L <br />1 pCi /L <br />2 pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Sample Matrix Spike <br />18 pCi /L <br />Sample Matrix Spike Duplicate <br />18 pCi /L <br />Run. TENNELEC- 3_130812C 08/20/13 12:06 <br />U <br />Run: TENNELEC -3 130812C 08/20/13 12:06 <br />98 70 130 <br />Run: TENNELEC- 3_130812C 08/20/13 12:06 <br />96 70 130 2.0 39.6 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 9 of 12 <br />