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wwmeneigylab-mm <br />,As?CN:E?+?is 3ilocar fA'Ft <br />2-0711 • Billings, htf 800-735-4480 • Casper, W WOO-235-0515 <br />Rape Ch, SD 866-672-1225 • College Station, TX 868-690-221$ <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 02/25/11 <br />Project: Schwartz SW 01-25-11 S25523-S25525 & S25568-S25572 Work Order: C11010792 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qua[ <br />Method: E903.0 Batch: RA226-5164 <br />Sample ID: C11010835-001DMS Sample Matrix Spike Run: BERTHOLD 770-1 _110204A 02/14/11 12:55 <br />Radium 226 14.4 pCi/L 109 70 130 <br />Sample ID: C1 1010835-001 DMSD Sample Matrix Spike Duplicate Run: BERTHOLD 770-1 _110204A 02/14/11 12:55 <br />Radium 226 13.8 pCi/L 106 70 130 4.1 25 <br />Sample ID: MB-RA226-5164 3 Method Blank Run: BERTHOLD 770-1 110204A 02/14/11 14:43 <br />Radium 226 -0.067 pCi/L U <br />Radium 226 precision (±) 0.065 pCi/L <br />Radium 226 MDC 0.15 pCi/L <br />Sample ID: LCS-RA226-5164 Laboratory Control Sample Run: BERTHOLD 770-1_ 110204A 02/14/11 14:43 <br />Radium 226 6.9 pCi/L 111 70 130 <br />Method: E903.0 <br />Sample ID: C11010780-001GMS <br />Radium 226 <br />Sample ID: C11010780-001GMSD <br />Radium 226 <br />Sample ID: MB-RA226-5162 <br />Radium 226 <br />Radium 226 precision (±) <br />Radium 226 MDC <br />Sample ID: LCS-RA226-5162 <br />Radium 226 <br />Sample Matrix Spike <br />13.7 pCi/L <br />Sample Matrix Spike Duplicate <br />13.1 pCi/L <br />3 Method Blank <br />0.20 pCi/L <br />0.093 pCi/L <br />0.10 pCi/L <br />Laboratory Control Sample <br />6.6 pCi/L <br />Batch: RA226-5162 <br />Run: TENNELEC-3_110203C 02/22/11 11:01 <br />107 80 120 <br />Run: TENNELEC-3_110203C 02/22/11 11:01 <br />101 80 120 4.2 23.9 <br />Run: TENNELEC-3_110203C 02/22/11 11:01 <br />Run: TENNELEC-3_110203C 02/22/11 11:01 <br />101 90 110 <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 27 of 39 <br />