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wwweneigytabcom 1 72-0711 + Billings, Mr 800-735-4169 • Casper, WY 868-2354515 <br />< ? ? 7,5 ?Rapid City,SD 80471-1225 0 College Station, TX 888-6307221$, <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz-SW 3/22/11 S25636-S25643 <br />Analyte Count Result <br />Method: RA-05 <br />Sample ID: LCS-228-RA226-5261 Laboratory Cc <br />Radium 228 8.3 <br />Sample ID: MB-RA226-5261 <br />Radium 228 <br />Radium 228 precision (±) <br />Radium 228 MDC <br />Sample ID: C11030702-007FMS <br />Radium 228 <br />Report Date: 04/20/11 <br />Work Order: C11030702 <br />Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: RA228-3649 <br />ntrol Sample Run: TENNELEC-3_110327C 04/05/11 11:16 <br />pCi/L 114 80 120 <br />3 Method Blank <br />0.4 pCi/L <br />0.8 pCi/L <br />1 pCi/L <br />Sample Matrix Spike <br />14 pCi/L <br />Sample ID: C11030702-007FMSD Sample Matrix Spike Duplicate <br />Radium 228 16 pCi/L <br />Run: TENNELEC-3_110327C 04/05/11 11:16 <br />U <br />Run: TENNELEC-3 110327C 04/05/11 11:16 <br />100 70 130 <br />Run: TENNELEC-3_110327C 04/05/11 11:16 <br />117 70 130 16 38.9 <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 27 of 38 <br />