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ENERGY <br />A`-ONAIONI( <br />www.energylab.com <br />hmtlytical ligillenn ffiaa 1912 <br />Client: Cotter Corporation <br />Project: Schwartz GW 6/2/11 S25801 <br />Helena, MT 877- 472 -0711 • Billings, MT 800 - 735 -4488 • Casper, WY 888 -235 -0515 <br />Gillette, WY 866 -886 -7175 • Rapid City, SD 888 - 672 -1225 • College Station, TX 888 -600 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Report Date: 07/07/11 <br />Work Order: C11060160 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E900.0 <br />Sample ID: MB -GrAB -1105 <br />Gross Alpha <br />Gross Alpha precision ( ±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision ( ±) <br />Gross Beta MDC <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />6 Method Blank <br />-1.54 pCi /L <br />0.705 pCi /L <br />1.37 pCi /L <br />-0.165 pCi /L <br />1.51 pCi /L <br />2.54 pCi /L <br />Run: G542M_110623A <br />Sample ID: Th230 -GrAB -1105 Laboratory Control Sample Run: G542M_110623A 06/29/11 22:25 <br />Gross Alpha 87.8 pCi /L 87 80 120 <br />Sample ID: Cs137 -GrAB -1105 Laboratory Control Sample Run: G542M_110623A 06/29/11 22:25 <br />Gross Beta 86.4 pCi /L 99 80 120 <br />Sample ID: C11060153- 001DMS Sample Matrix Spike Run: G542M_110623A 06/29/11 22:25 <br />Gross Alpha 111 pCi /L 109 70 130 <br />Sample ID: C11060153= 001DMSD Sample Matrix Spike Duplicate Run: G542M_110623A 06/29/11 22:25 <br />Gross Alpha 128 pCi /L 125 70 130 14 17.1 <br />Sample ID: 011060153- 001DMS Sample Matrix Spike Run: G542M_110623A 06/29/11 22:25 <br />Gross Beta 99.9 pCi /L 109 70 130 <br />Sample ID: 011060153- 001DMSD Sample Matrix Spike Duplicate Run: G542M_110623A 06/29/11 22:25 <br />Gross Beta 99.2 pCi /L 108 70 130 0.7 15.7 <br />Sample ID: 011060172- 005DDUP 6 Sample Duplicate Run: G542M_110623A 07/01/11 03:37 <br />Gross Alpha 210 pCi /L 13 19.2 <br />Gross Alpha precision ( ±) 9.91 pCi /L <br />Gross Alpha MDC 5.38 pCi /L <br />Gross Beta 70.3 pCi /L 5.8 20.3 <br />Gross Beta precision ( ±) 3.53 pCi /L <br />Gross Beta MDC 4.13 pCi /L <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 13 of 18 <br />Batch: GrAB -1105 <br />06/29/11 22:25 <br />U <br />U <br />