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1 www.enerRylob.com I — Helena, W 877- 472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888 -235 -8515 <br />- AsandalEre,NwaSiixa �lSI 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 />12/03/13 <br />Project: Schwartz SW 11/06/13 <br />S27254 <br />Work Order: <br />C13110376 <br />Analyte <br />Count Result Units <br />RL 0/49EC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E900.0 <br />Batch: GrAB -1663 <br />Sample ID: Th230 -GrAB -1663 <br />Laboratory Control Sample <br />Run: G5000W_131119A <br />11/25/13 18:32 <br />Gross Alpha <br />120 pCi /L <br />105 <br />80 120 <br />Sample ID: Sr90 -GrAB -1663 <br />Laboratory Control Sample <br />Run: G5000W_131119A <br />11/25/13 18:32 <br />Gross Beta <br />167 pCi /L <br />93 <br />80 120 <br />Sample ID: MB -GrAB -1663 <br />6 Method Blank <br />Run: G5000W 131119A <br />11/25/13 18:32 <br />Gross Alpha <br />-0.6 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 />2 pCi /L <br />Gross Beta MDC <br />3 pCi /L <br />Sample ID: C13100909- 001GDUP <br />6 Sample Duplicate <br />Run: G5000W_131119A <br />11/25/13 18:32 <br />Gross Alpha <br />179 pCi /L <br />9.3 <br />15.1 <br />Gross Alpha precision ( ±) <br />4.59 pCi /L <br />Gross Alpha MDC <br />1.89 pCi /L <br />Gross Beta <br />44.1 pCi /L <br />1.4 <br />21.4 <br />Gross Beta precision ( ±) <br />2.55 pCi /L <br />Gross Beta MDC <br />2.79 pCi /L <br />Sample ID: C13110403- 001FMS <br />Sample Matrix Spike <br />Run: G5000W_131119A <br />11/25/13 18:32 <br />Gross Alpha <br />94.1 pCi /L <br />74 <br />70 130 <br />Sample ID: C13110403- 001FMSD <br />Sample Matrix Spike Duplicate <br />Run: G5000W_131119A <br />11/25/13 18:32 <br />Gross Alpha <br />103 pCi /L <br />82 <br />70 130 9.3 <br />16.6 <br />Sample ID: C13110403 -001 FMS <br />Sample Matrix Spike <br />Run: G5000W_131119A <br />11/25/13 18:32 <br />Gross Beta <br />181 pCi /L <br />96 <br />70 130 <br />Sample ID: C13110403 -001 FMSD <br />Sample Matrix Spike Duplicate <br />Run: G5000W_131119A <br />11/25/13 18:32 <br />Gross Beta <br />189 pCi /L <br />101 <br />70 130 4.2 <br />13.8 <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 24 <br />