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\ C or".erergylab.com Helena, MT 877472 -0711 • Billings, W 800- 7354489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 -886 -7175 • Rapid City, SO 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 />07/16/13 <br />Project: Schwartz GW 6/20/1 <br />S27008 & S2009 <br />Work Order: <br />013060813 <br />FAnalyte <br />Count Result Units <br />RL ° /diEC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E900.0 <br />Batch: GrAB -1568 <br />Sample ID: Th230 -GrAB -1568 <br />Laboratory Control Sample <br />Run: G5000W_130629A <br />07/03/13 20:25 <br />Gross Alpha <br />107 pCi /L <br />103 <br />80 120 <br />Sample ID: MB -GrAB -1568 <br />6 Method Blank <br />Run: G5000W_130629A <br />07/03/13 20.25 <br />Gross Alpha <br />-0.9 pCi /L <br />U <br />Gross Alpha precision ( ±) <br />0.7 pCi /L <br />Gross Alpha MDC <br />1 pCi /L <br />Gross Beta <br />-1 pCi /L <br />U <br />Gross Beta precision ( ±) <br />2 pCi /L <br />Gross Beta MDC <br />3 pCi /L <br />Sample ID: C13060672 -001 FDUP <br />6 Sample Duplicate <br />Run: G5000W_130629A <br />07/03/13 20:25 <br />Gross Alpha <br />1510 pCi /L <br />1.3 <br />12.4 <br />Gross Alpha precision ( ±) <br />17.9 pCi /L <br />Gross Alpha MDC <br />3.41 pCi /L <br />Gross Beta <br />372 pCi /L <br />0.4 <br />14.2 <br />Gross Beta precision ( ±) <br />7.93 pCi /L <br />Gross Beta MDC <br />4.98 pCi /L <br />Sample ID: 013060772- 005FMS <br />Sample Matrix Spike <br />Run: G5000W_130629A <br />07/04/13 09:09 <br />Gross Alpha <br />128 pCi /L <br />116 <br />70 130 <br />Sample ID: C13060772- 005FMSD <br />Sample Matrix Spike Duplicate <br />Run: G5000W_130629A <br />07/04/13 09:09 <br />Gross Alpha <br />116 pCi /L <br />104 <br />70 130 9.8 <br />15.4 <br />Sample ID: C13060772- 005FMS <br />Sample Matrix Spike <br />Run: G5000W_130629A <br />07/04/13 09:09 <br />Gross Beta <br />194 pCi /L <br />96 <br />70 130 <br />Sample ID: C13060772- 005FMSD <br />Sample Matrix Spike Duplicate <br />Run: G5000W_130629A <br />07/04/13 09:10 <br />Gross Beta <br />193 pCi /L <br />96 <br />70 130 0.3 <br />13.9 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit <br />U - Not detected at minimum detectable concentration <br />Page 18 of 23 <br />