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• www enetgylab.axn Helena, MT 877472 -0711 • Billings, MT 800 - 7354489 • Casper, WY 888- 235 -6515 <br />10'°' "yast Gillette, WY 866486 -7175 • Rapid City, SO 888 -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: 10/24/13 <br />Project: Schwartz GW 9/25/13 S27178 & S27179 Work Order: C13091022 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E903.0 Batch: RA226 -6869 <br />Sample ID: C13091022- 001FMS Sample Matrix Spike Run: BERTHOLD 770- 1_130930B 10/07/13 22:36 <br />Radium 226 31 pCi /L 106 70 130 <br />Sample ID: C13091022- 001FMSD <br />Radium 226 <br />Sample ID: MB- RA226 -6869 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: LCS- RA226 -6869 <br />Radium 226 <br />Sample Matrix Spike Duplicate <br />31 pCi /L <br />3 Method Blank <br />-0.1 pCi /L <br />0.08 pCi /L <br />0.2 pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Laboratory Control Sample <br />11 pCi /L <br />Run: BERTHOLD 770- 1_130930B 10/07/13 23:36 <br />104 70 130 1.7 21.6 <br />Run: BERTHOLD 770- 1_130930B 10/07/13 23:36 <br />U <br />Run: BERTHOLD 770- 1_130930B 10/07/13 23:36 <br />100 80 120 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 22 of 26 <br />