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• www.ener#ab.com Helena, MT 877 -472 -0711 • Billings, MT B80- 735 -4488 • Casper, WY 888 - 235 -8515 <br />f <br />1: Gillette, WY 866 -666 -7175 • Rapid City, SD 8BB -672 -1225 • College station, TX 888 -698 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz -GW 9/16/14 S27663 <br />Analyte Count Result Units <br />Method: E903.0 <br />Lab ID: MB -RA226 -7376 <br />3 Method Blank <br />Radium 226 <br />-0.1 pCi /L <br />Radium 226 precision ( ±) <br />0.1 pCi /L <br />Radium 226 MDC <br />0.2 pCi /L <br />Lab ID: LCS -RA226 -7376 <br />Laboratory Control Sample <br />Radium 226 <br />13 pCi /L <br />Lab ID: C14090655- 001GMS <br />Sample Matrix Spike <br />Radium 226 <br />23 pCi /L <br />Lab ID: C14090655- 001GMSD <br />Sample Matrix Spike Duplicate <br />Radium 226 <br />26 pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 09/30/14 <br />Work Order: C14090659 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: RA226 -7376 <br />Run: BERTHOLD 770-2140918A 09/29/14 10:10 <br />U <br />Run: BERTHOLD 770- 2_140918A <br />115 80 120 <br />Run: BERTHOLD 770- 2_140918A <br />103 70 130 <br />Run: BERTHOLD 770- 2_140918A <br />114 70 130 11 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />09/29/14 10:10 <br />09/29/14 10:10 <br />09/29/14 10:10 <br />21.2 <br />Page 9 of 13 <br />