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www.owdab.com <br />AaryRtatFirM?ea sMp,lBSt <br />-0711 • Billings, NT 600-735-4499 • Casper, WY OW2354516 <br />3epid City, S0 SIB-672-1225 a College station, TX #88410-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 02/11/11 <br />Project: Schwartz SW 01 -11 -11 S25440-S25447 Work Order: C11010459 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E900.0 Batch: GrAB-1032 <br />Sample ID: MB-GrAB-1032 6 Method Blank Run: G5000W_110127A 01/28/11 23:09 <br />Gross Alpha -0.7 pCi/L U <br />Gross Alpha precision (±) 0.7 pCi/L <br />Gross Alpha MDC 0.8 pCi/L <br />Gross Beta 0.1 pCi/L U <br />Gross Beta precision (±) 1 pCi/L <br />Gross Beta MDC 1 pCi/L <br />Sample ID: Th230-GrAB-1032 Laboratory Control Sample Run: G5000W_110127A 01/28/11 23:09 <br />Gross Alpha 94 pCi/L 93 70 130 <br />Sample ID: Cs137-GrAB-1032 Laboratory Control Sample Run: G5000W_110127A <br />Gross Beta 54 pCi/L 61 70 130 <br />- LCS response is outside of the acceptance range for this analysis. Since the MB, MS, and MSD are acceptable the batch is approved. <br />Sample ID: 011010234-003AMS Sample Matrix Spike Run: G5000W_110127A <br />Gross Alpha 101 pCi/L 97 70 130 <br />Sample ID: C11010234-003AMSD Sample Matrix Spike Duplicate <br />Gross Alpha 109 pCi/L <br />Sample ID: C1 101 0234-003AMS <br />Gross Beta <br />Sample Matrix Spike <br />92.5 pCi/L <br />Sample ID: 011010234-003AMSD <br />Gross Beta <br />Sample ID: C10120855-002CDUP <br />Gross Alpha <br />Gross Alpha precision (±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision (±) <br />Gross Beta MDC <br />Sample Matrix Spike Duplicate <br />94.1 pCi/L <br />6 Sample Duplicate <br />72.4 pCi/L <br />18.9 pCi/L <br />24.2 pCi/L <br />22.1 pCi/L <br />14.6 pCi/L <br />23.8 pCi/L <br />Run: G5000W_110127A <br />104 70 130 6.9 <br />Run: G5000W_110127A <br />101 70 130 <br />Run: G50DOW_110127A <br />103 70 130 1.7 <br />Run: G5000W_110127A <br />27 <br />01/28/11 23:09 <br />S <br />01/28/11 23:09 <br />01/28/11 23:09 <br />17.2 <br />01/28/11 23:09 <br />01/28/11 23:09 <br />15.6 <br />01/29/11 11:26 <br />56.1 <br />11 135.2 U <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 25 of 38 <br />