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www.enerdab.com Helena, UT 877- 472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 888- 235 -0515 <br />- a.ymrdrirnc.swx , rau <br />Gillette, WY 866 -686 -1175 •Rapid City, SD 888 -672 -1225 •College Station, Tl(888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz -SW 12/1/14 S27813 and S27815 <br />Analyte <br />Count Result <br />Units <br />Method: E900.0 <br />Lab ID: Th230 -GrAB -1921 <br />Laboratory Control <br />Sample <br />Gross Alpha <br />133 <br />pCi /L <br />Lab ID: Sr90 -GrAB -1921 <br />Laboratory Control <br />Sample <br />Gross Beta <br />196 <br />pCi /L <br />Lab ID: MB -GrAB -1921 <br />6 Method Blank <br />Gross Alpha <br />-0.02 <br />pCi /L <br />Gross Alpha precision ( ±) <br />0.8 <br />pCi /L <br />Gross Alpha MDC <br />1 <br />pCi /L <br />Gross Beta <br />-0.2 <br />pCi /L <br />Gross Beta precision ( ±) <br />2 <br />pCi /L <br />Gross Beta MDC <br />3 <br />pCi /L <br />Lab ID: C14120088- 001EDUP <br />6 Sample Duplicate <br />Gross Alpha <br />1.47 <br />pCi /L <br />Gross Alpha precision ( ±) <br />1.22 <br />pCi /L <br />Gross Alpha MDC <br />1.94 <br />pCi /L <br />Gross Beta <br />1.75 <br />pCi /L <br />Gross Beta precision ( ±) <br />1.70 <br />pCi /L <br />Gross Beta MDC <br />2.79 <br />pCi /L <br />Lab ID: C14120088- 002EMS <br />Sample Matrix Spike <br />Gross Alpha <br />121 <br />pCi /L <br />Lab ID: C14120088- 002EMS <br />Sample Matrix Spike <br />Gross Beta <br />228 <br />pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 12/29/14 <br />Work Order: 014120088 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: GrAB -1921 <br />Run: G542M_141210A 12/11 /14 21:37 <br />116 80 120 <br />Run:G542M_141210A <br />99 80 120 <br />Run: G542M141210A <br />Run: G542M_141210A <br />Run: G542M_141210A <br />96 70 130 <br />Run: G542M_141210A <br />112 70 130 <br />12/11/14 21:37 <br />12/11/14 21:37 <br />U <br />L <br />12/11/14 21:37 <br />4.2 166 U <br />150 281.9 U <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />12/11/14 21:37 <br />12/11/14 21:38 <br />Page 18 of 25 <br />