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• www.efwOab.com Helena, MT 877-472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 888- 235 -0515 <br />- Aw"WEseAiararM -1l3Y Gillette, WY 866 - 686 -7175 • Rapid City, SD 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 9/3/14 S27625 and S27660 <br />Analyte Count Result Units <br />Method: A2540 C <br />Lab ID: MB-1140904A <br />Method Blank <br />Solids, Total Dissolved TDS @ 180 C <br />ND mg /L <br />Lab ID: LCS- 2_140904A <br />Laboratory Control Sample <br />Solids, Total Dissolved TDS @ 180 C <br />1120 mg /L <br />Lab ID: 014090135 -005A DUP <br />Sample Duplicate <br />Solids, Total Dissolved TDS @ 180 C <br />556 mg /L <br />Lab ID: C14090135 -006A MS <br />Sample Matrix Spike <br />Solids, Total Dissolved TDS @ 180 C <br />1690 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 09/26/14 <br />Work Order: C14090147 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: TDS140904A <br />Run: BAL -19 140904B 09/04/14 13:57 <br />7 <br />Run: BAL- 19_140904B <br />11 100 90 110 <br />Run: BAL- 19_140904B <br />10 <br />Run: BAL- 19_140904B <br />11 102 90 110 <br />ND - Not detected at the reporting limit. <br />0.2 <br />09/04/14 13:58 <br />09/04/14 14:06 <br />5 <br />09/04/14 14:06 <br />Page 7 of 29 <br />