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• www.energylab.com Helena, MR 877- 472 -0711 • Billings, MR 000- 735 -4488 • Casper, WY 888 - 235 -0515 <br />1111111110, 11►s1 Gillette, WY 066 -686 -7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 888 -680 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz -GW 09/04/14 S27679 <br />Analyte Count Result Units <br />Method: A2540 C <br />Lab ID: MB-1140910B <br />Method Blank <br />Solids, Total Dissolved TDS @ 180 C <br />ND mg /L <br />Lab ID: LCS- 2_140910B <br />Laboratory Control Sample <br />Solids, Total Dissolved TDS @ 180 C <br />1100 mg /L <br />Lab ID: C14090390 -001A DUP <br />Sample Duplicate <br />Solids, Total Dissolved TDS @ 180 C <br />4870 mg /L <br />Lab ID: C14090400 -001A MS <br />Sample Matrix Spike <br />Solids, Total Dissolved TDS @ 180 C <br />1290 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 09/30/14 <br />Work Order: C14090400 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: TDS140910B <br />Run: BAL -19 140910B 09/10/14 15:20 <br />7 <br />Run: BAL- 19_140910B <br />11 99 90 110 <br />Run: BAL- 19_140910B <br />100 <br />Run: BAL - 19_14091 OB <br />10 100 90 110 <br />ND - Not detected at the reporting limit. <br />09/10/14 15:20 <br />09/10/14 15:26 <br />5 <br />09/10/14 15:26 <br />Page 6 of 21 <br />