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www- emeab.COM Helena, MT 877- 472 -0711 • Billings, MT 608 - 735 -4489 a Casper, WV 888 -235 -6515 <br />A.ayHcalEaeeNeeasatiae. N!t Gillette, WY 866 -886 -7115 • Rapid City, SD 686- 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: 10/15/13 <br />Project: Schwartz SW 9/10/13 S27157 Work Order: C13090392 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E903.0 Batch: RA226 -6845 <br />Sample ID: C13090222- 001EDUP <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: C13090386- 004CMS <br />Radium 226 <br />Sample ID: MB- RA226 -6845 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: LCS- RA226 -6845 <br />Radium 226 <br />Method: E903.0 <br />Sample ID: C13090078- 001EMS <br />Radium 226 <br />Sample ID: C13090078- 001EMSD <br />Radium 226 <br />Sample ID: MB- RA226 -6843 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: LCS - RA226 -6843 <br />Radium 226 <br />3 Sample Duplicate <br />Run: BERTHOLD 770- 1_130916B <br />09/24/13 15:32 <br />0.20 pCi /L <br />23 <br />114 <br />0.11 pCi /L <br />0.14 pCi /L <br />Sample Matrix Spike <br />Run: BERTHOLD 770- 1_130916B <br />09/24/13 17:13 <br />24 pCi /L <br />105 70 130 <br />3 Method Blank <br />Run, BERTHOLD 770- 1_130916B <br />09/24/13 21:58 <br />-0003 pCi /L <br />U <br />008 pCi /L <br />0.1 pCi /L <br />Laboratory Control Sample <br />Run: BERTHOLD 770- 1_130916B <br />09/24/13 21:58 <br />12 pCi /L <br />108 80 120 <br />Sample Matrix Spike <br />22 pCi /L <br />Sample Matrix Spike Duplicate <br />24 pCi /L <br />3 Method Blank <br />-0.02 pCi /L <br />0.09 pCi /L <br />0.2 pCi /L <br />Laboratory Control Sample <br />12 pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Batch: RA226 -6843 <br />Run: BERTHOLD 770- 2_130916C 09/24/13 17:14 <br />96 70 130 <br />Run: BERTHOLD 770- 2_130916C 09/24/13 17:14 <br />106 70 130 10 21.7 <br />Run: BERTHOLD 770- 2_130916C 09/24/13 22:00 <br />U <br />Run: BERTHOLD 770- 2_130916C 09/24/13 22:00 <br />105 80 120 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 22 of 26 <br />