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wwwxegg ab.com Helena, MT 877472-0711 • Billings, W 800-735-4488 • Casper, INY 888-235-0515 <br />An"WEcaftombdal 8 Gillette, WY 866-686-7175 • Rapid City, SD 888.672-1225 • College Station, TX 888-680-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz GW 3/24/11 S25646 & S25647 <br />Analyte Count Result Units <br />Method: E900.0 <br />Sample ID: MB-GrAB-1066 6 Method Blank <br />Gross Alpha -0.982 pCi/L <br />Gross Alpha precision (±) 0.670 pCi/L <br />Gross Alpha MDC 1.26 pCi/L <br />Gross Beta 1.26 pCi/L <br />Gross Beta precision (±) 1.39 pCi/L <br />Gross Beta MDC 2.29 pCi/L <br />Sample ID: Th230-GrAB-1066 Laboratory Control Sample <br />Gross Alpha 108 pCi/L <br />Sample ID: Cs137-GrAB-1066 Laboratory Control Sample <br />Gross Beta 85.7 pCi/L <br />Sample ID: 011030722-001GDUP 6 Sample Duplicate <br />Gross Alpha 5.87 pCi/L <br />Gross Alpha precision (±) 2.35 pCi/L <br />Gross Alpha MDC 3.31 pCi/L <br />Gross Beta 14.6 pCi/L <br />Gross Beta precision (±) 2.32 pCi/L <br />Gross Beta MDC 3.46 pCi/L <br />Sample ID: C11030741-001GMS Sample Matrix Spike <br />Gross Alpha 130 pCi/L <br />Sample ID: C11030741-001GMSD Sample Matrix Spike Duplicate <br />Gross Alpha 120 pCi/L <br />Sample ID: 011030741-001GMS Sample Matrix Spike <br />Gross Beta 100 pCi/L <br />Sample ID: C11030741-001GMSD Sample Matrix Spike Duplicate <br />Gross Beta 94 pCi/L <br />Report Date: 04/19/11 <br />Work Order: C11030817 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: GrAB-1066 <br />Run: G5000W_110329A 04/07/11 01:29 <br />U <br />U <br />Run: G5000W_110329A 04/07/11 01:29 <br />106 80 120 <br />Run: G5000W 110329A 04/07/11 01:29 <br />96 80 120 <br />Run: G5000W_110329A 04/07/11 01:29 <br />76 103.8 <br />23 44.7 <br /> Run: G5000W_110329A 04/07/11 13:36 <br />114 70 130 <br /> Run: G5000W_110329A 04/07/11 13:36 <br />104 70 130 8.1 17.6 <br /> Run: G5000W 110329A 04/07/11 13:36 <br />103 70 130 <br /> Run: G5000W_110329A 04/07/11 13:36 <br />95 70 130 6.8 15.6 <br />Clualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 20 of 26