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www.aiasub.oom Heine, OF 1774724711 • Billings, W 181.7711.1418 • Cesper, WY 818-M-111115 <br />Amilli a B RAW SMO nar J -- , 6ilW Wt' 1114M7173 • Rapid CRS SO 811472-1228 • Collge Stedon, Ix 111-181-2211 <br />QA/QC Summary Report <br />Client: Cotter Corporation <br />Project: Schwartzwalder Mine <br />Report Date: 10/12/10 <br />Work Order: C10090382 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLImit Qual <br />Method: E900.0 Batch: GrAB-0965 <br />Sample ID: MB-GrAB-0965 6 Method Blank Run: G542M_100917A 09/21/10 13:52 <br />Gross Alpha .2 pCi/L U <br />Gross Alpha precision (±) 0.8 pCi/L <br />Gross Alpha MDC 1 pCi/L <br />Gross Beta -2 pCi/L U <br />Gross Beta precision (±) 1 pCi/L <br />Gross Beta MDC 2 pCVL <br />Sample ID: Th230-GrAB-0965 Laboratory Control Sample Run: G542M_100917A 09/21/10 13:52 <br />Gross Alpha 104 pCi/L 103 70 130 <br />Sample ID: Cs137-GrAB-0965 Laboratory Control Sample Run: G542M_100917A 09121/1013:53 <br />Gross Beta 90.3 pCi/L 103 70 130 <br />Sample ID: C10090382.OO1FMS Sample Matrix Spike Run: G542M_100917A 09/21/1013:53 <br />Gross Alpha 106 pCl/L 103 70 130 <br />Sample ID: C10090382-001FMSD Sample Matrix Spike Duplicate Run: G542M_100917A 09/21/10 13:53 <br />Gross Alpha 110 pCi/L 108 70 130 4.1 18.3 <br />Sample ID: 010090382-001FMS Sample Matrix Spike Run: G542M 100917A 09/21/10 13:53 <br />Gross Beta 84.4 pCi/L 91 70 130 <br />Sample ID: 010090382-001FMSO Sample Matrix Spike Duplicate Run: G542M_100917A 09/21/10 13:53 <br />Gross Beta 89.7 pCi/L 97 70 130 6.1 15.9 <br />Sample ID: C10090526-004GDUP 6 Sample Duplicate Run: G542M_100917A 09/24/10 20:17 <br />Gross Alpha 1.44 pCi/L 32 343.5 U <br />Gross Alpha precision (±) 2.87 pCl/L <br />Gross Alpha MDC 4.70 pCi/L <br />Gross Beta 1.36 pCi/L 76 205.6 U <br />Gross Beta precision (t) 2.29 pCi/L <br />Gross Beta MDC 3.80 pCi/L <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 26 of 36