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• www.ertereab.com ! Helena, MT 877- 472 -0111 - Billings, MT 800- 735 -4489 • Casper, WY 888- 235 -0515 <br />°a'su rlS2 Gillette, WY 866 -686 -7175 - Rapid City, SD 886- 672 -1225 - College Station, T% 888- 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />12/05/13 <br />Project: Schwartz GW 11/15/13 S27276 <br />Work Order: <br />C13110695 <br />Analyte Count Result Units <br />RL ° /.REC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E900.0 <br />Batch: GrAB -1666 <br />Sample ID: Th230 -GrAB -1666 <br />Laboratory Control Sample <br />Run: G542M_131127A <br />12/02/13 18:42 <br />Gross Alpha <br />106 pCi /L <br />92 <br />80 120 <br />Sample ID: Sr90 -GrAB -1666 <br />Laboratory Control Sample <br />Run: G542M_131127A <br />12/02/13 18:42 <br />Gross Beta <br />160 pCi /L <br />89 <br />80 120 <br />Sample ID: MB- GrAB -1666 <br />6 Method Blank <br />Run: G542M_131127A <br />12/02/13 18:42 <br />Gross Alpha <br />-0.10 pCi /L <br />U <br />Gross Alpha precision ( ±) <br />0.8 pCi /L <br />Gross Alpha MDC <br />1 pCi /L <br />Gross Beta <br />-0.2 pCi /L <br />U <br />Gross Beta precision ( ±) <br />2 pCi /L <br />Gross Beta MDC <br />3 pCi /L <br />Sample ID: C13110695- 001GDUP <br />6 Sample Duplicate <br />Run: G542M_131127A <br />12/02/13 18:42 <br />Gross Alpha <br />2960 pCi /L <br />16 <br />20 <br />Gross Alpha precision ( ±) <br />28.8 pCi /L <br />Gross Alpha MDC <br />4.59 pCi /L <br />Gross Beta <br />672 pCi /L <br />0.2 <br />13.4 <br />Gross Beta precision ( ±) <br />11.4 pCi /L <br />Gross Beta MDC <br />5.71 pCi /L <br />Sample ID: C13110799- 007AMS <br />Sample Matrix Spike <br />Run: G542M_131127A <br />12/03/13 08:37 <br />Gross Alpha <br />174 pCi /L <br />152 <br />70 130 <br />S <br />- Spike response is outside of the acceptance range for this analysis Since the LCS, MS, and the RPD for the Duplicate are acceptable the batch is <br />approved. <br />Sample ID: 013110799- 007AMSD <br />Sample Matrix Spike Duplicate <br />Run: G542M_131127A <br />12/03/13 08:37 <br />Gross Alpha <br />112 pCi /L <br />98 <br />70 130 43 <br />14.6 R <br />- RPD is outside of the acceptance range for this analysis <br />Sample ID: C13110799- 007AMS <br />Sample Matrix Spike <br />Run: G542M_131127A <br />12/03/13 08:37 <br />Gross Beta <br />155 pCi /L <br />86 <br />70 130 <br />Sample ID: C13110799- 007AMSD <br />Sample Matrix Spike Duplicate <br />Run: G542M_131127A <br />12/03/13 08:37 <br />Gross Beta <br />157 pCi /L <br />87 <br />70 130 1.1 <br />14.2 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />S - Spike recovery outside of advisory limits. <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />U - Not detected at minimum detectable concentration <br />Page 17 of 21 <br />