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www.eoe eeb.com Helena, MT 877472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 -235 -0515 <br />f Ao**W Ewaftm Sm 1632 Gillette, WY 866 -686 -7175 • Rapid City, SO 886 - 672 -1225 • College Station, TX 888 -696 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />10/24/13 <br />Project: Schwartz GW 9/25/13 S27178 & S27179 <br />Work Order: <br />C13091022 <br />FAnalyte Count Result Units <br />RL <br />° /6REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2540 C <br />Batch: TDS131001A <br />Sample ID: MB- 1_131001A <br />Method Blank <br />Run: BAL -19 131001A <br />10/01/13 13:07 <br />Solids, Total Dissolved TDS @ 180 C <br />ND mg /L <br />10 <br />Sample ID: LCS- 2_131001A <br />Laboratory Control Sample <br />Run: BAL- 19_131001A <br />10/01/13 13:07 <br />Solids, Total Dissolved TDS @ 180 C <br />1980 mg /L <br />20 <br />99 90 110 <br />Sample ID: C13090578 -009A MS <br />Sample Matrix Spike <br />Run: BAL- 19_131001A <br />10/01/13 13:07 <br />Solids, Total Dissolved TDS @ 180 C <br />27900 mg /L <br />100 <br />99 90 110 <br />Sample ID: C13090578 -011A DUP <br />Sample Duplicate <br />Run: BAL- 19_131001A <br />10/01/13 13:08 <br />Solids, Total Dissolved TDS @ 180 C <br />131000 mg /L <br />1000 <br />1.5 <br />5 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 8 of 26 <br />