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wwwmwgob.com Helena, MT 877- 472 -0711 *Billings, W 800- 735 -4489 o Casper, WY 888 -235 -1515 <br />Gillette, WY 866 -686 -1175 * 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 <br />Report Date: <br />09/05/13 <br />Project: Schwartz SW 8/6/13 S27019 <br />Work Order: <br />013080305 <br />Analyte <br />Count Result Units <br />RL ° /.REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E903.0 <br />0.44 pCi /L <br />45 <br />Batch: RA226 -6791 <br />Sample ID: 013080303- 001GMS <br />Sample Matrix Spike <br />Run: BERTHOLD 770- 2_130814A <br />08/20/13 10:00 <br />Radium 226 <br />32 pCi /L <br />139 70 130 <br />S <br />- Spike response is outside of the acceptance range for this analysis Since the LCS and the RPD for the MS MSD pair are acceptable, the response is considered to be <br />matrix related. The batch is approved. <br />U <br />0.10 pCi /L <br />Sample ID: C13080303 -001 GMSD <br />Sample Matrix Spike Duplicate <br />Run: BERTHOLD 770- 2_130814A <br />08/20/13 10:00 <br />Radium 226 <br />34 pCi /L <br />149 70 130 6.6 <br />23.1 S <br />- Spike response is outside of the acceptance range for this analysis Since the LCS and the RPD for the MS MSD pair are acceptable, the response is considered to be <br />matrix related. The batch is approved. <br />Sample ID: MB- RA226 -6791 <br />3 Method Blank <br />Run: BERTHOLD 770-2130814A <br />08/20/13 11:58 <br />Radium 226 <br />-0.07 pCi /L <br />U <br />Radium 226 precision ( ±) <br />0.2 pCi /L <br />Radium 226 MDC <br />0.4 pCi /L <br />Sample ID: LCS - RA226 -6791 <br />Laboratory Control Sample <br />Run: BERTHOLD 770- 2_130814A <br />08/20/13 11:58 <br />Radium 226 <br />13 pCi /L <br />118 80 120 <br />Method: E903.0 <br />Sample ID: C13080329 -001 EMS <br />Radium 226 <br />SamplelD: C13080331- 001FDUP <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: MB- RA226 -6794 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: LCS -RA226 -6794 <br />Radium 226 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 21 of 25 <br />Batch: RA226 -6794 <br />Sample Matrix Spike <br />Run: BERTHOLD 770- 2_130814B <br />09/04/13 01.28 <br />28 pCi /L <br />98 70 130 <br />3 Sample Duplicate <br />Run: BERTHOLD 770- 2_130814B <br />09/04/13 01:28 <br />0.44 pCi /L <br />45 <br />71.1 <br />017 pCi /L <br />0.18 pCi /L <br />3 Method Blank <br />Run, BERTHOLD 770-2130814B <br />09/04/13 03:04 <br />001 pCi /L <br />U <br />0.10 pCi /L <br />0.2 pCi /L <br />Laboratory Control Sample <br />Run: BERTHOLD 770- 2_130814B <br />09/04/13 03:04 <br />12 pCi /L <br />104 80 120 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 21 of 25 <br />