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wWWAnff 8b.com <br />A?tryt7rafEW-40CO$We 109 <br />-0711 • Billings, hrr 800-735-4489 • Casper, WY 888-235-0515 <br />Rapid City, 8D 888-672-.1225 • College Station, TX 888-610-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 12/09/10 <br />Project: Schwartzwalder Water Monitoring Program Discharge Work Order: 010110384 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Batch: 28196 <br />Method: E200.8 <br />Sample ID: MB-28196 Method Blank Run: ICPMS2-C_101122A 11/23/10 07:42 <br />Uranium ND mg/L 0.00030 <br />Sample ID: LCS3-28196 Laboratory Control Sample Run: ICPMS2-C_101122A 11/23/10 07:46 <br />Uranium 0.595 mg/L 0.00030 119 85 115 S <br />- Response is above standard QA limit. This could indicate a high bias for the sample results. Since there were no detectable analyte responses, and the remainder of the <br />run QA is within acceptance range, this batch is approved. <br />Sample ID: 010110517-003AMS3 Sample Matrix Spike Run: ICPMS2-C_101122A 11/23/10 08:02 <br />Uranium 0.647 mg/L 0.00030 124 70 130 <br />Sample ID: 010110517-003AMSD Sample Matrix Spike Duplicate Run: ICPMS2-C_101122A 11/23/10 08:07 <br />Uranium 0.659 mg/L 0.00030 126 70 130 1.8 20 <br />Method: E200.8 <br />Sample ID: LRB <br />Uranium <br />Sample ID: LFB <br />Uranium <br />Sample ID: 010110384-001BMSD <br />Uranium <br />Sample ID: C1 01 1 0384-001BMS4 <br />Uranium <br />Method Blank <br />ND mg/L 0.00030 <br />Laboratory Fortified Blank <br />0.0526 mg/L 0.00030 <br />Sample Matrix Spike Duplicate <br />0.0529 mg/L 0.00030 <br />Sample Matrix Spike <br />0.0526 mg/L 0.00030 <br />Batch: R140342 <br />Run: ICPMS4-C 101129A 11/29/1013:15 <br />Run: ICPMS4-C_101129A 11/29/1013:19 <br />105 85 115 <br />Run: ICPMS4-C 101129A 11/29/1015:06 <br />106 70 130 <br />Run: ICPMS4-C_101129A 11/29/1015:18 <br />105 70 130 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration S - Spike recovery outside of advisory limits. <br />Page 4 of 9