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ENERGY <br />LABORATORIES <br />Client: Cotter Corporation <br />Project: Schwartz SW 07/19/11 S25861- S25868 <br />Analyte <br />Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E900.0 <br />Sample ID: MB -GrAB -1141 <br />Gross Alpha <br />Gross Alpha precision ( ±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision ( ±) <br />Gross Beta MDC <br />www.energylab.com Helena, MT 877 472 - 0711 • Billings, MT 800 - 735 - 4489 • Casper, WY 888 - 235 -0515 <br />Analiffesi Ewan= Stu 1831 Gillette, WY 886- 686 -7175 • Rapid City, SD 888- 672 -1225 • College Station, TX 888 -690 -2218 <br />6 Method Blank <br />-2.58 pCi /L <br />0.845 pCi /L <br />1.71 pCi /L <br />-0.647 pCi /L <br />1.44 pCi /L <br />2.44 pCi /L <br />Sample ID: Th230 -GrAB -1141 Laboratory Control Sample <br />Gross Alpha 106 pCi /L 106 80 120 <br />Sample ID: Cs137 -GrAB -1141 Laboratory Control Sample <br />Gross Beta 82.5 pCi /L <br />Sample ID: C11070615- 001EMS Sample Matrix Spike <br />Sample ID: C11070615 -001 EMS Sample Matrix Spike <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Run: G542M_110810B <br />Run: G542M_110810B <br />Run: G542M_110810B <br />96 80 120 <br />Run: G542M_110810B <br />Gross Alpha 123 pCi /L 107 70 130 <br />Report Date: 08/21/11 <br />Work Order: C11070766 <br />Batch: GrAB -1141 <br />08/14/11 08:12 <br />U <br />U <br />08/14/11 08:12 <br />08/14/11 08:12 <br />08/14/11 08:12 <br />Sample ID: C1 1 07061 5- 001EMSD Sample Matrix Spike Duplicate Run: G542M_110810B 08/14/11 08:12 <br />Gross Alpha 148 pCi /L 132 70 130 19 20 S <br />- Spike response is outside of the acceptance range for this analysis. Since the LCS and the MS are acceptable the batch is approved. <br />Gross Beta 107 pCi /L 104 70 130 <br />Run: G542M_110810B 08/14/11 08:12 <br />Sample ID: C11070615 -001 EMSD Sample Matrix Spike Duplicate Run: G542M_110810B 08/14/11 08:12 <br />Gross Beta 87.8 pCi /L 82 70 130 20 20 <br />Sample ID: 011070772- 002ADUP 6 Sample Duplicate Run: G542M_110810B 08/17/11 11:29 <br />Gross Alpha 4.91 pCi /L 7.6 131.9 <br />Gross Alpha precision ( ±) 3.11 pCi /L <br />Gross Alpha MDC 4.78 pCi /L <br />Gross Beta 4.17 pCi /L 68 137.1 <br />Gross Beta precision ( ±) 2.11 pCi /L <br />Gross Beta MDC 3.41 pCi /L <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 25 of 38 <br />