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www.mw&ab.com Helena, MT 877 -472 -0711 • Billings, MT 600- 735 -4409 • Casper, WY 888 -235 -0515 <br />Gillette, WY 866-686 -7175 • Rapid City, SD 888- 672 -1225 • College Station, TX 888 - 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />02/25/14 <br />Project: Schwartz -SW 2/4/14 <br />S27322 Work Order: <br />C14020114 <br />Analyte <br />Count Result Units RL ° /6REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: <br />E245.1 <br />Analytical Run: CVAA_C203_140207A <br />Sample ID: <br />ICV <br />Initial Calibration Verification Standard <br />02/07/14 15 13 <br />Mercury <br />0.00454 mg /L 0.00010 91 90 110 <br />Method: <br />E245.1 <br />Batch: 140207A <br />Sample ID: <br />IPC <br />Instrument Performance Check Sample Run: CVAA_C203_140207A <br />02/07/14 15:17 <br />Mercury <br />0.00507 mg /L 0.00010 101 95 105 <br />Method: <br />E245.1 <br />Batch- 40571 <br />Sample ID: <br />MB -40571 <br />Method Blank Run: CVAA_C203_140207A <br />02/07/14 15:20 <br />Mercury <br />ND mg /L 7E -05 <br />Sample ID: <br />LCS -40571 <br />Laboratory Control Sample Run- CVAA_C203_140207A <br />02/07/14 15:26 <br />Mercury <br />0.00459 mg /L 0.00010 92 80 120 <br />Sample ID: <br />C14020109 -001 DMS <br />Sample Matrix Spike Run: CVAA_C203_140207A <br />02/07/14 15:51 <br />Mercury <br />0.00504 mg /L 0.00010 101 70 130 <br />Sample ID: <br />C14020109 -001 DMSD <br />Sample Matrix Spike Duplicate Run: CVAA_C203_140207A <br />02/07/14 15:53 <br />Mercury <br />0.00537 mg /L 0.00010 107 70 130 6.3 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 17 of 26 <br />