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wwwabrprlab com 7?1-0711 • Billings NT 801-735-4189 • Casper, WY 893-235-1513 <br />AWFA W:EA IYCa Stw'10Z " p d C :Y,. S0.811&672-1225 + Cdlage Station, TX 81IM104218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 02/03/11 <br />Project: Schwartz SW 01-05-11 S25539 Work Order: 011010185 <br />Analyte C ount Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E903.0 Batch: RA226-5111 <br />Sample ID: C11010182-001GMS Sample Matrix Spike Run: BERTHOLD 770-1 _110111A 01/24/11 13:12 <br />Radium 226 13 pCi/L 95 70 130 <br />Sample ID: C11010182-001GMSD Sample Matrix Spike Duplicate Run: BERTHOLD 770-1_ 110111A 01/24/11 13:12 <br />Radium 226 13 pCi/L 94 70 130 0.4 28.3 <br />Sample ID: MB-RA226-5111 3 Method Blank Run: BERTHOLD 770-1 11011 1A 01/24/11 14:46 <br />Radium 226 -0.1 pCi/L U <br />Radium 226 precision (±) 0.08 pCi/L <br />Radium 226 MDC 0.2 pCi/L <br />Sample ID: LCS-RA226-5111 Laboratory Control Sample Run: BERTHOLD 770-1_ 110111A 01/24/11 14:46 <br />Radium 226 6.9 pCi/L 111 70 130 <br />Method: E903.0 <br />Sample ID: 011010145-001DMS <br />Radium 226 <br />Sample ID: C11010145-001DMSD <br />Radium 226 <br />Sample ID: MB-RA226-5109 <br />Radium 226 <br />Radium 226 precision (±) <br />Radium 226 MDC <br />Sample ID: LCS-RA226-5109 <br />Radium 226 <br />Sample Matrix Spike <br />12.1 pCi/L <br />Sample Matrix Spike Duplicate <br />13.2 pCi/L <br />3 Method Blank <br />-0.09 pCi/L <br />0.08 pCi/L <br />0.2 pCi/L <br />Laboratory Control Sample <br />6.2 pCi/L <br />Run: G542M_110110A <br />92 70 130 <br />Run: G542M_110110A <br />102 70 130 <br />Run: G542M_110110A <br />Run: G542M_110110A <br />100 70 130 <br />01/17/11 14:08 <br />U <br />01/17/11 14:08 <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 19 of 24 <br />Batch: RA226-5109 <br />01/17/11 12:33 <br />01/17/11 12:33 <br />8.4 24.9 <br />