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www.ener&b.com Helena, MT 877472 -0711 • Billings, MT 800- 735 -4409 • Casper, WY 888 -235 -0515 <br />"~Erik °'Sliec' 1JV Gillette, wr 866 -686 -7175 • Rapid City, SD 686 - 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: 10/22/13 <br />Project: Schwartz GW 9/23/13 S27095 Work Order: C13090867 1 <br />Analyte 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: E245.1 Batch: 130927A <br />Sample ID: IPC Instrument Performance Check Sample Run: CVAA_C203_130927A 09/27/13 14:16 <br />Mercury 0.00520 mg /L 0.00010 104 95 105 <br />Method: <br />E245.1 <br />Sample ID: <br />MB -39206 <br />Mercury <br />Sample ID: <br />LCS -39206 <br />Mercury <br />Sample ID: <br />C13091022- 002DMS <br />Mercury <br />Sample ID: <br />C13091022- 002DMSD <br />Mercury <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Method Blank <br />ND mg /L <br />Laboratory Control Sample <br />0.00504 mg /L <br />Sample Matrix Spike <br />0.00482 mg /L <br />Sample Matrix Spike Duplicate <br />0.00493 mg /L <br />Run: CVAA_C203_130927A <br />7E -05 <br />Run: CVAA_C203_130927A <br />0.00010 101 85 115 <br />Run: CVAA_C203_130927A <br />0.00010 96 70 130 <br />Run: CVAA_C203_130927A <br />0.00010 99 70 130 <br />ND - Not detected at the reporting limit. <br />Batch: 39206 <br />09/27/13 15:10 <br />09/27/13 15:11 <br />09/27/13 15:22 <br />09/27/13 15:24 <br />2.3 10 <br />Page 13 of 21 <br />