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www.energylab.com Helena, MT 877- 472 -0711 - Billings, W 600- 735 -4189 - Caspar, WY 888- 235 -8515 <br />21- OR f Gillette, WY 866 -886 -7175 - Rapid City, SD 888- 672 -1225 - College Station, TX 888- 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper WY Branch <br />Revised Date: 03/06/14 <br />Client: Cotter Corporation Report Date: 02/24/14 <br />Project: Schwartz -SW 02/04/14 S27321 Work Order: 014020109 <br />[Analyte Count Result Units RL ° /6REC Low Limit High Limit RPD RPDLimit Qual <br />Method: RA -05 Batch: RA228 -4606 <br />Sample ID: LCS- 228 -RA226 -7066 Laboratory Control Sample Run: TENNELEC- 3_140207C 02/13/14 12:02 <br />Radium 228 9.6 pCi /L 97 80 120 <br />Sample ID: MB -RA226 -7066 <br />Radium 228 <br />Radium 228 precision ( ±) <br />Radium 228 MDC <br />Sample iD: C14020114 -001 FMS <br />Radium 228 <br />Sample ID: C14020114 -001 FMSD <br />Radium 228 <br />3 Method Blank <br />3 pCi /L <br />1 pCi /L <br />1 pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Sample Matrix Spike <br />16 pCi /L <br />Sample Matrix Spike Duplicate <br />18 pCi /L <br />Run: TENNELEC- 3_140207C 02/13/14 12:02 <br />Run: TENNELEC- 3_140207C 02/13/14 12:02 <br />98 70 130 <br />Run. TENNELEC- 3_140207C 02/13/14 12:02 <br />110 70 130 11 36.6 <br />ND - Not detected at the reporting limit. <br />Page 24 of 27 <br />