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IW? 1.3fI IL-UlII-uuIIng3,MY auu-Iaa-rvu VOaywyn .............•. <br />t X7175 ; `Ra4id .C ty, SD 818-612-1225 • College Station, TX 818-610-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz SW 2/17/11 S25626-S25633 <br />Analyte Count Result Units RL %REC Low Limit High Limit <br />Method: E900.0 <br />Sample ID: MB-GrAB-1047 6 Method Blank Run: G5000W_110228A <br />Gross Alpha 0.123 pCi/L <br />Gross Alpha precision (±) 0.750 pCi/L <br />Gross Alpha MDC 1.25 pCi/L <br />Gross Beta -0.328 pCi/L <br />Gross Beta precision (±) 1.47 pCi/L <br />Gross Beta MDC 2.47 pCi/L <br />Sample ID: Th230-GrAB-1047 Laboratory Control Sample Run: G5000W_110228A <br />Gross Alpha 105 pCi/L 103 80 120 <br />Sample ID: Cs137-GrAB-1047 Laboratory Control Sample Run: G5000W_110228A <br />Gross Beta 62.9 pCi/L 72 80 120 <br />- LOS response is outside of the accepta nce range for this analysis. Since the MB, MS, and MSD are acceptable the batch is approved. <br />Sample ID: C11010810-001ADUP 6 Sample Duplicate Run: G5000W_110228A <br />Gross Alpha 85.3 pCi/L <br />Gross Alpha precision (±) 8.89 pCi/L <br />Gross Alpha MDC 7.65 pCi/L <br />Gross Beta 11.3 pCi/L <br />Gross Beta precision (±) 4.17 pCi/L <br />Gross Beta MDC 6.64 pCi/L <br />Sample ID: C11020554-003FMS Sample Matrix Spike Run: G5000W_110228A <br />Gross Alpha 119 pCi/L 110 70 130 <br />Sample ID: C11020554-003FMSD Sample Matrix Spike Duplicate Run: G5000W_110228A <br />Gross Alpha 116 pCi/L 107 70 130 <br />Sample ID: C11020554-003FMS Sample Matrix Spike Run: G5000W_110228A <br />Gross Beta 99.6 pCi/L 107 70 130 <br />Sample ID: C11020554-003FMSD Sample Matrix Spike Duplicate Run: G5000W_110228A <br />Gross Beta 103 pCi/L 111 70 130 <br />Report Date: 03/21/11 <br />Work Order: C11020554 <br />RPD RPDLimit Qual <br />Batch: GrAB-1047 <br />03/01/11 22:40 <br />U <br /> U <br /> 03/01/11 22:40 <br /> 03/01/11 22:40 <br /> S <br /> 03/01/11 22:40 <br />3.2 30.6 <br />11 79.9 <br /> 03/02/11 10:54 <br /> 03/02/11 10:54 <br />3.0 17.7 <br /> 03/02/11 10:54 <br /> 03/02/11 10:54 <br />2.9 15.6 <br />Qualifiers: <br />RL - Analyte reporting limit. ND Not detected at the reporting limit. <br />MDC - Minimum detectable concentration S - Spike recovery outside of advisory limits. <br />U - Not detected at minimum detectable concentration <br />Page 26 of 39