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,, wy?i rgytabcom II <br />' *417-,.472-0711 • Billings, MY NO-735-4419 • Casper,WYBSA-Y35.1513 <br />I,alfigrfisNwanSlYra1J?lt 17175 ? Rapid_C?, S? 118-i7Y-1Y25 • CoI1e4e Station, rx eee-6sn-Yra <br /> QA/QC Summary Report <br /> Prepared by Cas per, WY Branch <br />Client: Cotter Corporation Report Date: 03/2111 <br />Project: Schwartz SW 2/17/11 S25626-S25633 Work Order: 011020554 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLiimit Qual <br /> Batch. RA226 5202 <br />Method: E903.0 <br />Sample ID: C11020548-004FMS Sample Matrix Spike Run: G5421VI_110228A 03/14/11 13:39 <br />Radium 226 13 pCi/L 106 70 130 <br />Sample ID: 011020548-004FMSD Sample Matrix Spike Duplicate Run: G542M_110228A 03/14/11 13:39 <br />Radium 226 12 pCi/L 92 70 130 13 24.4 <br />Sample ID: MB-RA226-5202 3 Method Blank Run: G5421VI_110228A 03/14/11 13:39 <br />Radium 226 0.0045 pCi/L U <br />Radium 226 precision (±) 0.092 pCi/L <br />Radium 226 MDC 0.16 pCi/L <br />Sample ID: LCS-RA226-5202 Laboratory Control Sample Run: G542M_110228A 03/14/11 13:39 <br />Radium 226 7.5 pCi/L 118 85 115 S <br />- LCS response is outside of the accepta nce range for this analysis. Since the MB, M S, and MSD are acceptable the batch is approved. <br /> Batch: RA226-5193 <br />Method: E903.0 <br />Sample ID: C11020554-003EMS Sample Matrix Spike Run: TENNELEC-3_110223A 03/01/11 16:37 <br />Radium 226 14 pCi/L 109 80 120 <br />Sample ID: C11020554-003EMSD Sample Matrix Spike Duplicate Run: TENNELEC-3_110223A 03/01/11 16:37 <br />Radium 226 13 pCi/L 99 80 120 9.1 26 <br />Sample ID: LCS-RA226-5193 Laboratory Control Sample Run: TENNELEC-3_110223A 03/01/11 21:43 <br />Radium 226 6.6 pCi/L 101 90 110 <br />Sample ID: MB-RA226-5193 3 Method Blank Run: TENNELEC-3_110223A 03/01/11 21:43 <br />Radium 226 0.19 pCi/L <br />Radium 226 precision (±) 0.097 pCi/L <br />Radium 226 MDC 0.11 pCi/L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 27 of 39 <br />