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www.ene dobtem Helena, MT B77472-0711 • Billings, MT 000-73'5-4409 • Casper, WY 8B8-235-0515 <br />I E9&ft=an rest Gillette, WY 866-686-7175 • Rapid City, SO 886-872-1225 • College Station, TX 888-690-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 03/04/11 <br />Project: Schwartz SW02-03-11 S25602-S25608 Work Order: C11020189 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Clual <br />Method: E900.0 Batch: GrAB-1037 <br />Sample ID: MB-GrAB-1037 6 Method Blank Run: G542M_110210A 02/12/11 00:51 <br />Gross Alpha 0.080 pCi/L U <br />Gross Alpha precision (±) 0.71 pCi/L <br />Gross Alpha MDC 0.75 pCi/L <br />Gross Beta 1.3 pCi/L U <br />Gross Beta precision (±) 1.4 pCi/L <br />Gross Beta MDC 1.4 pCi/L <br />Sample ID: Th230-GrAB-1037 Laboratory Control Sample Run: G542M_110210A 02/12/11 00:51 <br />Gross Alpha 90 pCi/L 88 80 120 <br />Sample ID: Cs137-GrAB-1037 Laboratory Control Sample Run: G542M_110210A 02/12/11 00:51 <br />Gross Beta 83 pCi/L 92 80 120 <br />Sample ID: 011010788-002DDUP 6 Sample Duplicate Run: G542M_110210A 02/12/11 13:25 <br />Gross Alpha 71.8 pCi/L 3.6 40.7 <br />Gross Alpha precision (±) 10.9 pCi/L <br />Gross Alpha MDC 12.2 pCi/L <br />Gross Beta 28.2 pCi/L 27 60 <br />Gross Beta precision (±) 6.33 pCi/L <br />Gross Beta MDC 9.77 pCi/L <br />Sample ID: C11020189-001 FMS Sample Matrix Spike Run: G542M_110210A 02/12/11 13:25 <br />Gross Alpha 95.1 pCi/L 93 70 130 <br />Sample ID: C11020189-001 FMSD Sample Matrix Spike Duplicate Run: G542M_110210A 02/12/11 13:25 <br />Gross Alpha 91.4 pCi/L 89 70 130 4.0 17.6 <br />Sample ID: C11020189-001 FMS Sample Matrix Spike Run: G542M_110210A 02/15/11 08:36 <br />Gross Beta 87.3 pCi/L 98 70 130 <br />Sample ID: C11020189-001FMSD Sample Matrix Spike Duplicate Run: G542M_110210A 02/15/11 08:36 <br />Gross Beta 91.9 pCi/L 103 70 130 5.1 15.8 <br />Qualifiers: <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 25 of 37