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www.energyiab.crom Helena, MT 877 472-0711 -Billings, ldT 800-135-4489 • Casper, WY 888-235-0515 <br />Anrlytica/fxeallauesSnn 7851 + <br />ED' Gillette, VM 866-686-7175 n Rapid City, S0 888-672-1225 * College Station, TX 888-690-2218 <br />QA,/QC Summary Report <br />Client: Cotter Corporation <br />Project: Schwartzwalder Water Monitoring Program - SW <br />Report Date: 12110110 <br />Work Order: 010110203 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimil Oual <br />Method: E900.0 Batch: GrAB-1007 <br />Sample ID: MB-GrAB-1007 6 Method Blank Run: G542M_101122A 11/24/10 22:19 <br />Gross Alpha -3 pCi/L U <br />Gross Alpha precision (±) 0.7 pCi/L <br />Gross Alpha MDC 0.9 pCi/L <br />Gross Beta -0.7 pCi/L U <br />Gross Beta precision (±) 1 pCi/L <br />Gross Bela MDC 1 pCi/L <br />Sample ID: Th230-GrAB-1007 Laboratory Control Sample Run: G542M_101122A 11 /24/10 22:19 <br />Gross Alpha 97 pCi/L 97 70 130 <br />Sample ID: Cs137-GrAB-1007 Laboratory Control Sample Run: G542M_101122A 11/24/10 22:19 <br />Gross Bela 87 pCi/L 98 70 130 <br />Sample ID: C1 01 1 01 46-003DDUP 6 Sample Duplicate Run: G542M_101122A 1 V24110 22:19 <br />Gross Alpha -5.60 pCi/L 0.8 100.8 U <br />Gross Alpha precision (±} 2.54 pCi/L <br />Gross Alpha MDC 4.88 pCi/L <br />Gross Beta 3.65 pCi/L 0.0 143.9 U <br />Gross Beta precision (±) 2.44 pCi/L <br />Gross Bela MDC 3.99 pCirL <br />Sample ID: C1 01 1 05 51-001FMS Sample Matrix Spike Run: G542M_101122A 11/25/10 10:27 <br />Gross Alpha 141 pCirL 106 70 130 <br />Sample ID: C10110551-001 FMSD Sample Matrix Spike Duplicate Run: G542M101122A 11/25/10 10:27 <br />Gross Alpha 149 pCi/L 114 70 130 5.1 15.6 <br />Sample ID: C1 01 1 0551-001 FMS Sample Matrix Spike Run: G542M_.101122A 11/29/10 23:07 <br />Gross Beta 101 pCi/L 97 70 130 <br />Sample ID: C10110551-001 FMSD Sample Matrix Spike Duplicate Run: G542M_101122A 11/29/10 23.07 <br />Gross Bela -1.54 pCi/L -18 70 130 210 16.3 USR <br />- Spike response is outside of the acceptance range for this analysis due to the analyst forgetting to spike the sample. Since the LCS and the MS are acceptable the batch ie <br />approved. <br />Qualifiers: <br />RL - Analyle reporting limit. <br />MDC - Minimum delectable concentration <br />S - Spike recovery outside of advisory limits. <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />U - Not detected at minimum detectable concentration <br />Page 30 of 43 <br />