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www.ener&b.com Helena, W 877 -472 -0711 • Billings, MT 608 - 735 -4469 • Casper, WY 888- 235 -8515 <br />EnsillamSbo lost Gillette, ANY 866 -686 -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 />Report Date: <br />02/25/14 <br />Project: Schwartz -SW 2/4/14 <br />S27322 <br />Work Order: <br />C14020114 <br />[Analyte <br />Count Result Units <br />RL ° /.REC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: RA -05 <br />Batch: RA228 -4606 <br />Sample ID: LCS- 228 -RA226 -7066 <br />Laboratory Control Sample <br />Run: TENNELEC- 3_140207C <br />02/13/14 12:02 <br />Radium 228 <br />9.6 pCi /L <br />97 <br />80 120 <br />Sample ID: MB -RA226 -7066 <br />3 Method Blank <br />Run: TENNELEC -3 140207C <br />02/13/14 12:02 <br />Radium 228 <br />3 pCi /L <br />Radium 228 precision ( ±) <br />1 pCi /L <br />Radium 228 MDC <br />1 pCi /L <br />Sample ID: C14020114 -001 FMS <br />Sample Matrix Spike <br />Run: TENNELEC- 3_140207C <br />02/13/14 12:02 <br />Radium 228 <br />16 pCi /L <br />98 <br />70 130 <br />Sample ID: C14020114 -001 FMSD <br />Sample Matrix Spike Duplicate <br />Run: TENNELEC- 3_140207C <br />02/13/14 12:02 <br />Radium 228 <br />18 pCi /L <br />110 <br />70 130 11 <br />36.6 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 23 of 26 <br />