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wwive eb-com <br />,Aa?Itc?f Ex?eclSiw i><St <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />• hiiiings, eu 6uu-IOD-"ov • Gasper, wT awz3D-vv* <br />?' so 08413=1225 • college Station, Tx 866-610-2218 <br />Client: Cotter Corporation Report Date: 04/20/11 <br />Project: Schwartz-SW 3/22/11 S25636-S25643 Work Order: C11030702 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E903.0 Batch: RA226-5261 <br />Sample ID: C11030702-007FMS Sample Matrix Spike Run: BERTHOLD 770-2_110327A 04/11/11 12:47 <br />Radium 226 15 pCi/L 114 70 130 <br />Sample ID: C11030702-007FMSD Sample Matrix Spike Duplicate Run: BERTHOLD 770-2_110327A 04/11/11 12:47 <br />Radium 226 13 pCi/L 100 70 130 13 26 <br />Sample ID: MB-RA226-5261 3 Method Blank Run: BERTHOLD 770-2110327A 04/11/11 12:47 <br />Radium 226 -0.09 pCi/L U <br />Radium 226 precision (±) 0.07 pCi/L <br />Radium 226 MDC 0.2 pCi/L <br />Sample ID: LCS-RA226-5261 Laboratory Control Sample Run: BERTHOLD 770-2_110327A 04/11/11 12:47 <br />Radium 226 7.0 pCi/L 112 85 115 <br />Method: E903.0 Batch: RA226-5258 <br />Sample ID: C11030665-001 DMS Sample Matrix Spike Run: TENNELEC-3_110324B 03/30/11 08:32 <br />Radium 226 12 pCi/L 94 70 130 <br />Sample ID: C1 1030665-001 DMSD Sample Matrix Spike Duplicate Run: TENNELEC-3_110324B 03/30/11 08:32 <br />Radium 226 12 pCi/L 95 70 130 1.1 25 <br />Sample ID: MB-RA226-5258 3 Method Blank Run: TENNELEC-3_110324B 03/30/11 10:25 <br />Radium 226 0.08 pCi/L U <br />Radium 226 precision (±) 0.07 pCi/L <br />Radium 226 MDC 0.1 pCi/L <br />Sample ID: LCS-RA226-5258 Laboratory Control Sample Run: TENNELEC-3_110324B 03/30/11 10:25 <br />Radium 226 6.0 pCi/L 93 85 115 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration U - Not detected at minimum detectable concentration <br />Page 26 of 38 <br />