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www.emdab.com Helena, MT 877- 472 -0711 - Billings, MT 001 -735 -4469 - Casper, WY 808- 235 -0515 <br />Aw"NEkobw AW IM 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 />Project: Schwartz GW 1/14/15 S28103, S28106, S28107 <br />Analyte <br />Count Result <br />Units <br />Method: E900.0 <br />Lab ID: Th230 -GrAB -1937 <br />Laboratory Control <br />Sample <br />Gross Alpha <br />135 <br />pCi /L <br />Lab ID: Sr90 -GrAB -1937 <br />Laboratory Control <br />Sample <br />Gross Beta <br />183 <br />pCi /L <br />Lab ID: MB -GrAB -1937 <br />6 Method Blank <br />Gross Alpha <br />2 <br />pCi /L <br />Gross Alpha precision ( ±) <br />1 <br />pCi /L <br />Gross Alpha MDC <br />1 <br />pCi /L <br />Gross Beta <br />-1 <br />pCi /L <br />Gross Beta precision ( ±) <br />1 <br />pCi /L <br />Gross Beta MDC <br />2 <br />pCi /L <br />Lab ID: C15010389- 001CMS <br />Sample Matrix Spike <br />Gross Alpha <br />145 <br />pCi /L <br />Lab ID: C15010389- 001CMS <br />Sample Matrix Spike <br />Gross Beta <br />215 <br />pCi /L <br />Lab ID: 015010389- 003CDUP <br />6 Sample Duplicate <br />Gross Alpha <br />994 <br />pCi /L <br />Gross Alpha precision ( ±) <br />193 <br />pCi /L <br />Gross Alpha MDC <br />2.39 <br />pCi /L <br />Gross Beta <br />163 <br />pCi /L <br />Gross Beta precision ( ±) <br />16.8 <br />pCi /L <br />Gross Beta MDC <br />3.11 <br />pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 02/02/15 <br />Work Order: C15010389 <br />RL %REC Low Limit High Limit RPD RPDLtmit Qual <br />Batch: GrAB -1937 <br />Run: TENNELEC- 3_150123A 01/26/15 23:26 <br />99 80 120 <br />Run: TENNELEC- 3_150123A 01/26/15 23:26 <br />93 80 120 <br />Run: TENNELEC -3 150123A 01/26/15 23:26 <br />A <br />Run: TENNELEC- 3_150123A 01/26/15 23:26 <br />104 70 130 <br />Run: TENNELEC- 3_150123A 01/26/15 23:26 <br />107 70 130 <br />Run: TENNELEC- 3_150123A 01/26/15 23:26 <br />7.9 48.8 <br />8.5 30.7 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 13 of 19 <br />