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I <br />www. gglab.eom Helena, MT 077 -472 -0711 • Billings, MT 600 - 735 -4489 • Casper, WY 888- 235 -8515 <br />�A 0p' '" yZ Gillette, Wy 866 -606 -7175 • Rapid City, S© 886 -672 -1225 • College Station, TX 888 -690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz GW 6/23/13 S26948 <br />Analyte <br />Count Result Units <br />Method: E903.0 <br />Sample ID: C13060891- 001EMS <br />Sample Matrix Spike <br />Radium 226 <br />25 pCi /L <br />Sample ID: C13060891- 001EMSD <br />Sample Matrix Spike Duplicate <br />Radium 226 <br />24 pCi /L <br />Sample ID: MB -RA226 -6715 <br />3 Method Blank <br />Radium 226 <br />-0.1 pCi /L <br />Radium 226 precision ( ±) <br />0.08 pCi /L <br />Radium 226 MDC <br />0.2 pCi /L <br />Sample ID: LCS -RA226 -6715 <br />Laboratory Control Sample <br />Radium 226 <br />12 pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 07/16/13 <br />Work Order: 013060891 <br />RL ° /.REC Low Limit High Limit RPD RPDLimit Clual <br />Batch: RA226 -6715 <br />Run: BERTHOLD 770- 2_130626A 07/03/13 15:39 <br />108 70 130 <br />Run: BERTHOLD 770- 2_130626A 07/03/13 15:39 <br />104 70 130 4.2 21.2 <br />Run: BERTHOLD 770- 2_130626A 07/03/13 16:38 <br />U <br />Run: BERTHOLD 770- 2_130626A 07/03/13 16:38 <br />103 80 120 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 17 of 20 <br />