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ENERGY <br />A'- 4ORJA1 OHIF.S <br />Method: E900.0 <br />Sample ID: MB -GrAB -1104 <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: Th230 -GrAB -1104 <br />Gross Alpha <br />Sample ID: Cs137 -GrAB -1104 <br />Gross Beta <br />Sample ID: C11060344 -001 FDUP <br />Gross Alpha <br />Gross Alpha precision ( ±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision ( ±) <br />Gross Beta MDC <br />- Activity of original sample is below detection <br />Sample ID: C11060386- 008FMS <br />Gross Alpha <br />- Spike response is outside of the acceptance <br />matrix related. The batch is approved. <br />Sample ID: C11060386- 008FMSD <br />Gross Alpha <br />Sample ID: 011060386- 008FMS <br />Gross Beta <br />Sample ID: C11060386- 008FMSD <br />Gross Beta <br />www.energylab.com <br />Mury&ied&cal 'Slate 1852 <br />Client: Cotter Corporation <br />Project: Schwartz GW 5/26/11 S25771 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Analyte Count <br />Result Units <br />RL %REC Low Limit High Limit <br />RPD RPDLimit Qual <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />S - Spike recovery outside of advisory limits. <br />6 Method Blank <br />-1.36 <br />0.704 <br />1.36 <br />0.00971 <br />1.53 <br />2.57 <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />Laboratory Control Sample <br />95.7 pCi /L <br />Laboratory Control Sample <br />84.9 pCi /L <br />6 Sample Duplicate <br />6.52 <br />4.11 <br />6.21 <br />2.47 <br />3.34 <br />5.53 <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />limit; duplicate is above detection limit, <br />Sample Matrix Spike <br />180 pCi /L <br />range for this analysis. Since the LCS <br />Sample Matrix Spike Duplicate <br />167 pCi /L <br />Sample Matrix Spike <br />104 pCi /L <br />Sample Matrix Spike Duplicate <br />98.0 pCi /L <br />Helena, MT 877- 472 -0711 • Billings, MT 800- 735 -4409 • Cesper, WY 888- 235 -0515 <br />Gillette, WY 086 -686 -7175 • Rapid City, So 888 - 872 -1225 • College Station, Tx 888- 600 -2218 <br />Run: G5000W_110621A <br />Run: G5000W_110621A <br />95 80 120 <br />Run: G5000W_110621A <br />96 80 120 <br />Run: 05000W 110621A <br />Run: G5000W_110621A <br />132 70 130 <br />Run: G5000W_110621A <br />107 70 130 <br />Run: G5000W_110621A <br />100 70 130 <br />Report Date: 07/11/11 <br />Work Order: C11050928 <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />U - Not detected at minimum detectable concentration <br />Batch: GrAB -1104 <br />06/23/11 23:30 <br />U <br />U <br />06/23/11 23:30 <br />06/23/11 23:30 <br />06/23/11 23:30 <br />240 181.8 R <br />95 140.1 U <br />but within the limits of precision, resulting in high RPD. Batch is acceptable. <br />Run: G5000W_110621A 06/25/11 12:18 <br />146 70 130 S <br />and the RPD for the MS MSD pair are acceptable, the response is considered to be <br />06/25/11 12:18 <br />7.9 16.6 S <br />5.8 <br />Page 15 of 20 <br />06/25/11 12:18 <br />06/25/11 12:18 <br />15.8 <br />