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wwvrx*rg0abPrn <br />AuBtlrNEialkmStoa IM <br />offyi,10'2-071 1 B illings, MT 100-735=41E8 • Casper, WY 888-235-1515 <br />aid CO, SD 816 612-1225 • College Station, ix 888-6!0-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 04/01/11 <br />Project: Schwartz SW 03/01/1 1 S25651-S25658 Work Order: C11030134 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qua[ <br />Method: E903.0 Batch: RA226-5219 <br />Sample ID: C11030181-001EMS Sample Matrix Spike Run: BERTHOLD 770-2_110308A 03/14/11 17:07 <br />Radium 226 13 pCi/L 88 70 130 <br />Sample ID: C1 1030181 -001 EMSD Sample Matrix Spike Duplicate Run: BERTHOLD 770-2_110308A 03/14/11 17:07 <br />Radium 226 14 pCi/L 99 70 130 9.8 28.2 <br />Sample ID: MB-RA226-5219 3 Method Blank Run: BERTHOLD 770-2_110308A 03/14/11 17:07 <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-RA226-5219 Laboratory Control Sample Run: BERTHOLD 770-2_110308A 03/14/11 17:07 <br />Radium 226 6.3 pCi/L 101 85 115 <br />Method: E903.0 Batch: RA226-5215 <br />Sample ID: 011030099-001 DMS Sample Matrix Spike Run: G542M_110307A 03/14/11 17:02 <br />Radium 226 14 pCi/L 98 70 130 <br />Sample ID: C1 1030099-001 DMSD Sample Matrix Spike Duplicate Run: G542M_110307A 03/14/11 17:02 <br />Radium 226 15 pCi/L 104 70 130 5.5 23.9 <br />Sample ID: MB-RA226-5215 3 Method Blank <br />Radium 226 -0.06 <br />Radium 226 precision (±) 0.08 <br />Radium 226 MDC 0.2 <br />Sample ID: LCS-RA226-5215 Laboratory Co <br />Radium 226 6.2 <br />Run: G542M_110307A 03/14/11 22:15 <br />pCi/L U <br />pCi/L <br />pCi/L <br />ntrol Sample Run: G542M_110307A 03/14/11 22:15 <br />pCi/L 99 85 115 <br />Method: E903.0 Batch: RA226-5225 <br />Sample ID: C11030134-001 FMS Sample Matrix Spike Run: TENNELEC-3_11031 OG 03/21/11 15:10 <br />Radium 226 12 pCi/L 89 70 130 <br />Sample ID: C11030134-001FMSD Sample Matrix Spike Duplicate Run: TENNELEC-3_11031OG 03/21/11 15:10 <br />Radium 226 9.9 pCi/L 76 70 130 15 25.9 <br />Sample ID: MB-RA226-5225 3 Method Blank Run: TENNELEC-3_110310G 03/21/11 15:10 <br />Radium 226 0.09 pCi/L U <br />Radium 226 precision (±) 0.09 pCi/L <br />Radium 226 MDC 0.1 pCi/L <br />Sample ID: LCS-RA226-5225 Laboratory Control Sample Run: TENNELEC-3_11031 OG 03/21/11 15:10 <br />Radium 226 6.1 pCi/L 95 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 32 of 43 <br />