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www.eradab.com ( Helena, MT 871472 -0711 • Billings, MT 801- 735 -44B8 • Casper, WY 888- 235 -0515 <br />An"W wam IM J Gillette, wY 866 -666 -1175 • Rapid City, SO 8BB- 672 -1225 • College Station, TX 808- 680 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />09/26/14 <br />Project: Schwartz -SW 9/3/14 S27625 and S27660 <br />Work Order: <br />C14090147 <br />Analyte Count Result Units <br />RL %REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E903.0 <br />Batch: RA226 -7357 <br />Lab ID: 014090144- 001EMS <br />Sample Matrix Spike <br />Run: BERTHOLD 770- 2_140908A <br />09/15/14 09:55 <br />Radium 226 <br />24 pCi /L <br />107 70 130 <br />Lab ID: C14090144- 001EMSD <br />Sample Matrix Spike Duplicate <br />Run: BERTHOLD 770- 2_140908A <br />09/15/14 09:55 <br />Radium 226 <br />24 pCi /L <br />107 70 130 0.1 <br />21 <br />Lab ID: LCS -RA226 -7357 <br />Laboratory Control Sample <br />Run: BERTHOLD 770- 2_140908A <br />09/15/14 11:32 <br />Radium 226 <br />13 pCi /L <br />111 80 120 <br />Lab ID: MB -RA226 -7357 3 <br />Method Blank <br />Run: BERTHOLD 770-2140908A <br />09/15/14 11:32 <br />Radium 226 <br />0.003 pCi /L <br />U <br />Radium 226 precision ( ±) <br />0.09 pCi /L <br />Radium 226 MDC <br />0.2 pCi /L <br />Method: E903.0 <br />Lab ID: C14090144- 001FMS <br />Radium 226 <br />Lab ID: C14090144- 001FMSD <br />Radium 226 <br />Lab ID: MB -RA226 -7352 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Lab ID: LCS -RA226 -7352 <br />Radium 226 <br />Sample Matrix Spike <br />22 pCi /L <br />Sample Matrix Spike Duplicate <br />24 pCi /L <br />3 Method Blank <br />1.0 pCi /L <br />0.3 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 -7352 <br />Run: TENNELEC- 3_140908B 09/22/14 11:39 <br />97 70 130 <br />Run: TENNELEC- 3_140908B 09/22/14 11:39 <br />108 70 130 10.0 20.8 <br />Run: TENNELEC -3 140908B 09/22/14 11:39 <br />Run: TENNELEC- 3_140908B 09/22/14 11:39 <br />98 80 120 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 23 of 29 <br />