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www.energylab.com f Helena, MT 877- 472 -0711 • Billings, mT 800 - 735 -4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 -666 -7175 • Rapid City, SO BBB- 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 />05/06/13 <br />Project: Schwartz GW 4/11/13 S26889 <br />Work Order: <br />C13040486 <br />Analyte Count Result Units <br />RL %REC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E900.0 <br />Batch- GrAB -151 <br />Sample ID: Th230 -GrAB -1511 <br />Laboratory Control Sample <br />Rum G542M_130424A <br />04/26/13 16:25 <br />Gross Alpha <br />119 pCi /L <br />114 <br />80 120 <br />Sample ID: Sr90 -GrAB -1511 <br />Laboratory Control Sample <br />Run: G542M_130424A <br />04/26/13 16.25 <br />Gross Beta <br />166 pCi /L <br />90 <br />80 120 <br />Sample ID: MB -GrAB -1511 <br />6 Method Blank <br />Run: G542M_130424A <br />04/26/13 16:25 <br />Gross Alpha <br />-0.2 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 />2 pCi /L <br />U <br />Gross Beta precision ( ±) <br />1 pCi /L <br />Gross Beta MDC <br />2 pCi /L <br />Sample ID: C13040547 -001 EMS <br />Sample Matrix Spike <br />Run G542M_130424A <br />04/26/13 16:24 <br />Gross Alpha <br />78.5 pCi /L <br />72 <br />70 130 <br />Sample ID: C13040547 -001 EMSD <br />Sample Matrix Spike Duplicate <br />Run: G542M_130424A <br />04/26/13 16:24 <br />Gross Alpha <br />96.4 pCi /L <br />89 <br />70 130 21 <br />17.3 R <br />-The RPD for the MSD is high The individual spike recoveries are within range, the MB is acceptable, and <br />the LCS is acceptable therefore the batch is approved <br />Sample ID: C13040547 -001EMS <br />Sample Matrix Spike <br />Run: G542M_130424A <br />04/26/13 16:24 <br />Gross Beta <br />178 pCi /L <br />96 <br />70 130 <br />Sample ID: C13040547 -001 EMSD <br />Sample Matrix Spike Duplicate <br />Run: G542M_130424A <br />04/26/13 16:24 <br />Gross Beta <br />185 pCi /L <br />100 <br />70 130 3.6 <br />14 <br />Sample ID: C13040624 -003ADUP <br />6 Sample Duplicate <br />Run- G542M_130424A <br />04/27/13 04:28 <br />Gross Alpha <br />15.0 pCi /L <br />12 <br />43.1 <br />Gross Alpha precision ( ±) <br />2.38 pCi /L <br />Gross Alpha MDC <br />2.85 pCi /L <br />Gross Beta <br />5.05 pCi /L <br />45 <br />122.1 <br />Gross Beta precision ( ±) <br />2.34 pCi /L <br />Gross Beta MDC <br />3.73 pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />Page 17 of 21 <br />