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wwx.eiWdab.com <br />1-016qf Ewsft a S81es 1Jff <br />472-0711 a Billings MI501-735-4119 • Casper,WY111-235-1513 <br />w! Rapid crty, sD /1B-i12-1225 Cdlege Steti4n, Tl(811-610-121a <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 12/17/10 <br />Project: Schwartzwalder Water Monitoring Program-Discharge Work Order: C10110468 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Clual <br /> Batch: R140133 <br />Method: E200.8 <br />Sample ID: LRB 2 Method Blank Run: ICPMS2-C_101119A 11/19/10 11:56 <br />Chromium ND mg/L 4E-05 <br />Manganese ND mg/L 5E-05 <br />Sample ID: LFB 2 Laboratory Fortified Blank Run: ICPMS2-C_101119A 11/19/10 14:51 <br />Chromium 0.0528 mg/L 0.0010 106 85 115 <br />Manganese 0.0530 mg/L 0.0010 106 85 115 <br />Sample ID: C10110479-006CMS4 2 Sample Matrix Spike Run: ICPMS2-C_101119A 11/20/10 07:21 <br />Chromium 0.0468 mg/L 0.0010 94 70 130 <br />Manganese 0.0512 mg/L 0.010 94 70 130 <br />Sample ID: C1 01 10479-006CMSD 2 Sample Matrix Spike Duplicate Run: ICPMS2-C_101119A 11/20/10 07:28 <br />Chromium 0.0491 mg/L 0.0010 98 70 130 4.9 20 <br />Manganese 0.0533 mg/L 0.010 98 70 130 4.0 20 <br />Method: E200.8 <br />Sample ID: LRB 3 Method Blank <br />Cadmium ND mg/L <br />Silver ND mg/L <br />Uranium ND mg/L <br />Sample ID: LFB 3 Laboratory Fortified Blank <br />Cadmium 0.0525 mg/L <br />Silver 0.0209 mg/L <br />Uranium 0.0512 mg/L <br />Sample ID: C10110468-001DMS4 3 Sample Matrix Spike <br />Cadmium 0.0498 mg/L <br />Silver 0.0156 mg/L <br />Uranium 0.0492 mg/L <br />Sample ID: C1 0110468-001 DMSD 3 Sample Matrix Spike Duplicate <br />Cadmium 0.0501 mg/L <br />Silver 0.0160 mg/L <br />Uranium 0.0492 mg/L <br /> Batch: R139947A <br /> Run: ICPMS4-C 101115A 11/15/1017:01 <br />7E-05 <br />8E-05 <br />8E-06 <br /> Run: ICPMS4-C_101115A 11/15/1017:08 <br />0.0010 105 85 115 <br />0.0010 105 85 115 <br />0.00030 102 85 115 <br /> Run: ICPMS4-C 101115A 11/16/1018:50 <br />0.010 99 70 130 <br />0.010 78 70 130 <br />0.00030 98 70 130 <br /> Run: ICPMS4-C_101115A 11/16/1018:56 <br />0.010 100 70 130 0.5 20 <br />0.010 80 70 130 2.5 20 <br />0.00030 98 70 130 0.0 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 12 of 23 <br />