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www.m&sb.com Helena, MT 877- 472 -0711 - Billings, MT 800 -735 -4489 - Casper, WY 888- 235 -0515 <br />ra' Sm IM 1 Gillette, WY 866 -688 -7175 - Rapid City, SD 886- 672 -1225 - College Station, TX 888- 690 -2218 <br />11 • QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />2.02 <br />Report Date: <br />07/05/13 <br />Project: Schwartz GW 06/07/13 S26942 & S26943 <br />Work Order: <br />C13060291 <br />FAnalyte <br />Count Result Units <br />RL ° /.REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E900.0 <br />pCi /L <br />Batch: GrAB -1562 <br />Sample ID: Th230 -GrAB -1562 <br />Laboratory Control Sample <br />Run: G542M_130621 A <br />06/24/13 19.14 <br />Gross Alpha <br />113 pCi /L <br />107 80 120 <br />Sample lD: MB -GrAB -1562 <br />6 Method Blank <br />Run: G5421VI_130621A <br />06/24/13 19:14 <br />Gross Alpha <br />0.4 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 />-0.2 pCi /L <br />U <br />Gross Beta precision ( ±) <br />1 pCi /L <br />Gross Beta MDC <br />2 pCi /L <br />Sample ID: C13060247- 004EMS <br />Gross Beta <br />Sample ID: C13060247- 004EMSD <br />Gross Beta <br />Sample ID: 013060286- 002EDUP <br />Gross Alpha <br />Gross Alpha precision ( ±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision ( ±) <br />Gross Beta MDC <br />Sample Matrix Spike <br />217 pCi /L <br />Sample Matrix Spike Duplicate <br />202 pCi /L <br />6 Sample Duplicate <br />2.02 <br />pCi /L <br />2.72 <br />pCi /L <br />4.41 <br />pCi /L <br />11.9 <br />pCi /L <br />3.71 <br />pCi /L <br />5.86 <br />pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Run: G542M_130621A <br />114 70 130 <br />Run: G542M_130621A <br />105 70 130 <br />Run- G542M_130621A <br />06/24/13 19:15 <br />06/24/13 19:15 <br />7.5 13.8 <br />06/24/13 19:15 <br />2.5 272.1 U <br />19 67.1 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 19 of 24 <br />