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' www.ertr6ob.com Helena, MT 877- 472 -0711 • Billings, W 800 -735 -4409 • Casper, WY 888- 235 -6515 <br />AuWWEvA% Q Skw 1113s J Gillette, WY 866 -686 -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 />06/18/13 <br />Project: Schwartz GW 5/15/2013 S26920 & S26921 <br />Work Order: <br />013050697 <br />Analyte <br />Count Result Units <br />RL ° /diEC Low Limit High Limit RPD <br />RPDLimit Quay <br />Method: E900.0 <br />3 <br />pCi /L <br />Batch: GrAB -1549 <br />Sample ID: Th230 -GrAB -1549 <br />Laboratory Control Sample <br />Run: G5000W_130611A <br />06/13/13 15:50 <br />Gross Alpha <br />116 pCi /L <br />111 80 120 <br />Sample ID: Sr90 -GrAB -1549 <br />Laboratory Control Sample <br />Run: G5000W_130611A <br />06/13/13 15:50 <br />Gross Beta <br />174 pCi /L <br />96 80 120 <br />Sample ID: MB -GrAB -1549 <br />Gross Alpha <br />Gross Alpha precision ( ±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision ( ±) <br />Gross Beta MDC <br />Sample ID: C13050697- 002FDUP <br />Gross Alpha <br />Gross Alpha precision ( ±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision ( ±) <br />Gross Beta MDC <br />Sample ID: C13051074- 001IMS <br />Gross Alpha <br />Sample ID: C13051074- 001IMSD <br />Gross Alpha <br />Sample ID: C13051074- 001IMS <br />Gross Beta <br />Sample ID: C13051074- 001IMSD <br />Gross Beta <br />6 Method Blank <br />-0.9 <br />pCi /L <br />0.7 <br />pCi /L <br />1 <br />pCi /L <br />-2 <br />pCi /L <br />2 <br />pCi /L <br />3 <br />pCi /L <br />6 Sample Duplicate <br />243 pCi /L <br />5.51 pCi /L <br />1.95 pCi /L <br />50.9 pCi /L <br />2.66 pCi /L <br />2.79 pCi /L <br />Sample Matrix Spike <br />116 pCi /L <br />Sample Matrix Spike Duplicate <br />118 pCi /L <br />Sample Matrix Spike <br />200 pCi /L <br />Sample Matrix Spike Duplicate <br />191 pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Run: G5000W_130611A <br />Run: G5000W_130611A <br />Run: G5000W_130611A <br />107 70 130 <br />Run: G5000W_130611A <br />109 70 130 <br />Run, G5000W_130611A <br />110 70 130 <br />Run: G5000W_130611A <br />105 70 130 <br />06/13/13 1550 <br />U <br />U <br />06/13/13 15:50 <br />5.9 14.5 <br />10 20.8 <br />06/14/13 03:54 <br />06/14/13 03:54 <br />1.6 15.4 <br />06/14/13 03:54 <br />4.8 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />06/14/13 03:54 <br />13.9 <br />Page 18 of 24 <br />