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• - www.enerdab.com <br />Helena, MT 077- 472 -0711 a Billings, MT 800 -735 -4469 • Casper, WY 888 -235 -0515 <br />Gillette, WY 866 -606 -1175 • Rapid City, SO 886- 672 -1225 • College Station, TX 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared <br />by Casper, WY Branch <br />Revised Date: <br />03/06/14 <br />Client: Cotter Corporation <br />Report Date: <br />02/24/14 <br />Project: Schwartz -SW 02/04/14 S27321 <br />Work Order: <br />C14020109 <br />Analyte Count Result Units <br />RL ° /.REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2540 C <br />Batch: TDS140205A <br />Sample ID: MB- 1_140205A Method Blank <br />Run: BAL -19 140205A <br />02/05/14 13:27 <br />Solids, Total Dissolved TDS @ 180 C ND mg /L <br />7 <br />Sample ID: LCS- 2_140205A Laboratory Control Sample <br />Rum BAL- 19_140205A <br />02/05/14 13:28 <br />Solids, Total Dissolved TDS @ 180 C 2020 mg /L <br />20 101 90 110 <br />Sample ID: 014020050 -001 B DUP Sample Duplicate <br />Run: BAL- 19_140205A <br />02/05/14 13:28 <br />Solids, Total Dissolved TDS @ 180 C 1110 mg /L <br />20 0.3 <br />5 <br />Sample ID: C14020050 -002B MS Sample Matrix Spike <br />Run: BAL- 19_140205A <br />02/05/14 13:29 <br />Solids, Total Dissolved TDS @ 180 C 3300 mg /L <br />20 99 90 110 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 6 of 27 <br />