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wwwtnergOob.com Helena, MT 877 -472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WV 868 -235 -1515 <br />102 f Gillette, WY 166 -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 Report Date: 10/24/13 <br />Project: Schwartz GW 9/25/13 S27178 & S27179 Work Order: C13091022 <br />FAnalyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_130927A <br />Sample ID: ICV Initial Calibration Verification Standard 09/27/13 14:13 <br />Mercury 0.00469 mg /L 0.00010 94 90 110 <br />Method: <br />Sample ID: <br />Mercury <br />E245.1 <br />IPC <br />Instrument Performance Check Sample <br />0.00520 mg /L 0.00010 <br />104 <br />Run: CVAA_C203_130927A <br />95 105 <br />Batch: 130927A <br />09/27/13 14:16 <br />Method: <br />E245.1 <br />Batch: 39206 <br />Sample ID: <br />MB -39206 <br />Method Blank <br />Run: CVAA_C203_130927A <br />09/27/13 15:10 <br />Mercury <br />ND mg /L <br />7E -05 <br />Sample ID: <br />LCS -39206 <br />Laboratory Control Sample <br />Run: CVAA_C203_130927A <br />09/27/13 15:11 <br />Mercury <br />0.00504 mg /L <br />0.00010 <br />101 <br />85 115 <br />Sample ID: <br />C13091022- 002DMS <br />Sample Matrix Spike <br />Run: CVAA_C203_130927A <br />09/27/13 15:22 <br />Mercury <br />0.00482 mg /L <br />0.00010 <br />96 <br />70 130 <br />Sample ID: <br />C13091022- 002DMSD <br />Sample Matrix Spike Duplicate <br />Run: CVAA_C203_130927A <br />09/27/13 15:24 <br />Mercury <br />0.00493 mg /L <br />0.00010 <br />99 <br />70 130 2.3 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 16 of 26 <br />