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• - www.enerdab.com Helena, W 877 - 472 -0711 • Billings, W 600 - 735 -4489 • Casper, WY 888 -235 -0515 <br />An"aEmAMN °"rat Gillette, WY 866 -666 -7175 • Rapid City, SO 886- 672 -1225 • College Station, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz SW 5/21/13 S26991 - S26995 <br />Analyte Count Result Units <br />Method: A2540 C <br />06/27/13 <br />Sample ID: MB- 1_130528A <br />Method Blank <br />Solids, Total Dissolved TDS @ 180 C <br />ND mg /L <br />Sample ID: LCS- 2_130528A <br />Laboratory Control Sample <br />Solids, Total Dissolved TDS @ 180 C <br />1940 mg /L <br />Sample ID: 013050899 -002A MS <br />Sample Matrix Spike <br />Solids, Total Dissolved TDS @ 180 C <br />91600 mg /L <br />Sample ID: C13050921 -003A DUP <br />Sample Duplicate <br />Solids, Total Dissolved TDS @ 180 C <br />6170 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 10 of 31 <br />Report Date: <br />06/27/13 <br />Work Order: <br />C13050860 <br />RL <br />%REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Batch: TDS130528A <br />Run- BAL- 19_130528B <br />05/28/13 11:56 <br />10 <br />Run: BAL- 19_130528B <br />05/28/13 11:56 <br />20 <br />97 90 110 <br />Run: BAL- 19_130528B <br />05/28/13 15:44 <br />500 <br />99 90 110 <br />Run. BAL- 19_130528B <br />05/28/13 15:47 <br />100 <br />0.8 <br />5 <br />ND - Not detected at the reporting limit. <br />Page 10 of 31 <br />