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www.energylab.com Helena, MT 877- 472 -0711 • Billings, MT 600 - 7354489 • Casper, WY 888 -235 -6515 <br />Sure. F!5? Gillette, WY 866 -666 -7175 • Rapid City, SO 886 -672 -1225 • College Station, T% 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz SW 11/06/13 S27254 <br />Analyte Count Result Units <br />Method: A2540 C <br />Sample ID: MB- 1_131111A <br />Method Blank <br />Solids, Total Dissolved TDS @ 180 C <br />ND mg /L <br />Sample ID: LCS- 2_131111 A <br />Laboratory Control Sample <br />Solids, Total Dissolved TDS @ 180 C <br />1990 mg /L <br />Sample ID: C13110280 -001 B DUP <br />Sample Duplicate <br />Solids, Total Dissolved TDS @ 180 C <br />323000 mg /L <br />Sample ID: 013110369 -001A MS <br />Sample Matrix Spike <br />Solids, Total Dissolved TDS @ 180 C <br />1360 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 12/03/13 <br />Work Order: C13110376 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: TDS131111A <br />Run: BAL- 19_131111A 11/11/13 11:49 <br />10 <br />Run: BAL- 19_131111 A <br />20 100 90 110 <br />Run: BAL- 19_131111A <br />1000 <br />Run: BAL- 19_131111A <br />11 102 90 110 <br />ND - Not detected at the reporting limit. <br />11/11/1311:49 <br />11/11/13 11:49 <br />2.9 5 <br />11/11/13 11:50 <br />Page 6 of 24 <br />