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ENERGY <br />L ABO BATOR I F_S <br />Client: Cotter Corporation <br />Project: Schwartz GW 9/13/12 S26638 <br />Analyte Count Result <br />Method: E900.0 <br />Sample ID: Th230 -GrAB -1362 <br />Gross Alpha <br />Sample ID: Sr90 -GrAB -1362 <br />Gross Beta <br />Sample ID: MB -GrAB -1362 <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: C12090380- 003EDUP <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: C12090392- 004DMS <br />Gross Alpha <br />Sample ID: C12090392- 004DMSD <br />Gross Alpha <br />Sample ID: C12090392- 004DMS <br />Gross Beta <br />Sample ID: C12090392- 004DMSD <br />Gross Beta <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />www.energylab.com <br />Analytical Excellence Since 1852 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Laboratory Control Sample <br />201 pCi /L <br />Laboratory Control Sample <br />168 pCi /L <br />6 Method Blank <br />0.2 <br />0.7 <br />1 <br />-2 <br />1 <br />3 <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />6 Sample Duplicate <br />12.1 pCi /L <br />2.53 pCi /L <br />3.22 pCi /L <br />5.13 pCi /L <br />3.06 pCi /L <br />4.94 pCi /L <br />Sample Matrix Spike <br />183 pCi /L <br />Sample Matrix Spike Duplicate <br />193 pCi /L <br />Sample Matrix Spike <br />185 pCi /L <br />Sample Matrix Spike Duplicate <br />176 pCi /L <br />Helena, MT 877- 472 -0711 • Billings, MT 800 - 135 - 4489 • Casper, WY 888 - 235 - 0515 <br />Gillette, WY 866 686 - 7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 8B8 - 690 - 221 B <br />Report Date: 10/18/12 <br />Work Order: C12090499 <br />Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Run: G542M_121002A <br />98 80 120 <br />Run: G542M_121002A <br />92 80 120 <br />Run: G542M_121002A <br />Run: G542M_121002A <br />Run: G542M_121002A <br />88 70 130 <br />Run: G542M_121002A <br />92 70 130 <br />Run: G542M_121002A <br />98 70 130 <br />Run: G542M_121002A <br />93 70 130 <br />20 113 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Batch: GrAB -1362 <br />10/03/12 16:27 <br />10/03/12 16:27 <br />10/03/12 16:27 <br />U <br />U <br />10/03/12 16:27 <br />28 55.9 <br />10/03/12 16:27 <br />10/04/12 04:35 <br />5.4 14.7 <br />10/04/12 04:35 <br />10/04/12 04:35 <br />5.0 13.9 <br />Page 19 of 23 <br />