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• �. ' www.erserdab.com Helena, ITT 877 -472 -0711 • Billings, W 800- 735 -4488 • Casper, WY 868- 235 -0515 as <br />�"a 1R°' �ma 19s1 Gillette, wr 866 -686 -7175 • Rapid City, SD 808 -672 -1225 • College Station, TX OW680 -2216 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />09/30/14 <br />Project: Schwartz -GW 9/10/14 <br />S27680,S27681 <br />Work Order: <br />C14090456 <br />Analyte Count <br />Result Units <br />RL %REC <br />Low Limit High Limit RPD <br />RPDLimit Quail <br />Method: E900.0 <br />Batch: GrAB -1851 <br />Lab ID: Th230 -GrAB -1851 <br />Laboratory Control Sample <br />Run: G542M_140919A <br />09/22/14 20:34 <br />Gross Alpha <br />138 pCi /L <br />120 <br />80 120 <br />Lab ID: Sr90 -GrAB -1851 <br />Laboratory Control Sample <br />Run: G542M_140919A <br />09/22/14 20:34 <br />Gross Beta <br />181 pCi /L <br />91 <br />80 120 <br />Lab ID: MB -GrAB -1851 <br />6 Method Blank <br />Run: G542M_140919A <br />09/22/14 20:34 <br />Gross Alpha <br />0.5 pCi /L <br />U <br />Gross Alpha precision ( ±) <br />0.9 pCi /L <br />Gross Alpha MDC <br />1 pCi /L <br />Gross Beta <br />-0.6 pCi /L <br />U <br />Gross Beta precision ( ±) <br />2 pCi /L <br />Gross Beta MDC <br />3 pCi /L <br />Lab ID: C14090400- 001FDUP <br />6 Sample Duplicate <br />Run: G542M_140919A <br />09/22/14 20:34 <br />Gross Alpha <br />62.7 pCi /L <br />18 <br />20.5 <br />Gross Alpha precision ( ±) <br />3.18 pCi /L <br />Gross Alpha MDC <br />2.07 pCi /L <br />Gross Beta <br />12.1 pCi /L <br />4.9 <br />46.3 <br />Gross Beta precision ( ±) <br />2.26 pCi /L <br />Gross Beta MDC <br />3.21 pCi /L <br />Lab ID: C14090456- 002FMS <br />Sample Matrix Spike <br />Run: G542M_140919A <br />09/22/14 20:34 <br />Gross Alpha <br />263 pCi /L <br />97 <br />70 130 <br />Lab ID: C14090456- 002FMSD <br />Sample Matrix Spike Duplicate <br />Run: G542M_140919A <br />09/22/14 20:34 <br />Gross Alpha <br />283 pCi /L <br />115 <br />70 130 7.5 <br />14.7 <br />Lab ID: 014090456- 002FMS <br />Sample Matrix Spike <br />Run: G542M_140919A <br />09/22/14 20:34 <br />Gross Beta <br />231 pCi /L <br />105 <br />70 130 <br />Lab ID: C14090456- 002FMSD <br />Sample Matrix Spike Duplicate <br />Run: G542M_140919A <br />09/22/14 20:34 <br />Gross Beta <br />221 pCi /L <br />100 <br />70 130 4.6 <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 19 of 25 <br />