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• www.e waleb.com Helena, UT 877472-0711 • Billings, MR 800-7354489 • Casper, WY 888-235-1515 <br />r Gillette, WY 866-666-7175 • Rapid City, SD 888-672-1225 • College station, TX 888-691-2218 <br />QA/QC Summary Report <br />Revised Date: 11 /23/10 <br />Client: Cotter Corporation Report Date: 11 /12/10 <br />Project: Schwartzwalder Water Monitoring Program Discharge Work Order: C10100590 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Batch: 28033 <br />Sample ID: MB-28033 2 Method Blank Run: ICPMS2-C_101105A 11/05/10 23:14 <br />Antimony ND mg/L 0.0002 <br />Uranium ND mg/L 4E-05 <br />Sample ID: LCS3.28033 2 Laboratory Control Sample Run: ICPMS2-C_101105A 11/05/10 23:21 <br />Antimony 0.590 mg/L 0.050 118 85 115 S <br />Uranium 0.566 mg/L 0.00030 113 85 115 <br />Sample ID: C10101128-002DMS3 2 Sample Matrix Spike Run: ICPMS2-C_101105A 11/06/10 00:29 <br />Antimony 0.596 mg/L 0.050 119 70 130 <br />Uranium 0.597 mg/L 0.00030 118 70 130 <br />Sample ID: 010101128-002DMSD 2 Sample Matrix Spike Duplicate Run: ICPMS2-C_101105A 11/06/10 00:35 <br />Antimony 0.521 mg/L 0.050 104 70 130 13 20 <br />Uranium 0.582 mg/L 0.00030 115 70 130 2.5 20 <br />Method: E200.8 Batch: R138681A <br />Sample ID: C10100592-001CMS4 Sample Matrix Spike Run: ICPMS4-C_101018A 10/19/10 04:52 <br />Manganese 0.140 mg/L 0.010 104 70 130 <br />Sample ID: C10100592-001CMSD Sample Matrix Spike Duplicate Run: ICPMS4-C_101018A 10/19/10 04:59 <br />Manganese 0.139 mg/L 0.010 101 70 130 1.1 20 <br />Sample ID: LRB Method Blank Run: ICPMS4-C_101018A 10/18/10 17:31 <br />Manganese 0.0002 mg/L 2E-05 <br />Sample ID: LFB Laboratory Fortified Blank Run: ICPMS4-C_101018A 10/18/10 17:38 <br />Manganese 0.0543 mg/L 0.0010 108 85 115 <br />Method: E200.8 Batch: R138746A <br />Sample ID: C10100592-001CMS4 2 Sample Matrix Spike Run: ICPMS4-C_101019A 10/19/10 19:12 <br />Chromium 0.0568 mg/L 0.050 113 70 130 <br />Iron 1.41 mg/L 0.030 107 70 130 <br />Sample ID: 010100592-001CMSD 2 Sample Matrix Spike Duplicate Run: ICPMS4-C_101019A 10/19/10 19:19 <br />Chromium 0.0521 mg/L 0.050 104 70 130 8.6 20 <br />Iron 1.36 mg/L 0.030 103 70 130 3.5 20 <br />Sample ID: LRB 2 Method Blank Run: ICPMS4-C_101019A 10/19/10 13:21 <br />Chromium ND mg/L 5E-05 <br />Iron ND mg/L 0.0001 <br />Sample ID: LFB 2 Laboratory Fortified Blank Run: ICPMS4-C_101019A 10/19/10 13:28 <br />Chromium 0.0545 mg/L 0.0010 109 85 115 <br />Iron 1.29 mg/L 0.012 104 85 115 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration S - Sp ike recovery outside of advisory limits. <br />Page 12 of 22