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• rL=4 www.enerM lab.com Helena, MT 877- 472 -0711 - Billings, MT 808- 735 -4489 - Casper, WY 888- 235 -0515 <br />Sk' Itaz Gillette, WY 866 -688 -7175 - Rapid City, So 886- 672 -1225 - College Station, TX 888 - 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch ' d D / 5/14 <br />Client: Cotter Corporation <br />Project: Schwartz -GW 1/30/14 S27319 <br />Analyte Count Result Units <br />Method: A2540 C <br />Sample ID: MB- 1_140204A <br />Method Blank <br />Solids, Total Dissolved TDS @ 180 C <br />ND mg /L <br />Sample ID: LCS- 2_140204A <br />Laboratory Control Sample <br />Solids, Total Dissolved TDS @ 180 C <br />1970 mg /L <br />Sample ID: C14010891 -001A DUP <br />Sample Duplicate <br />Solids, Total Dissolved TDS @ 180 C <br />220 mg /L <br />Sample ID: C14020002 -001A MS <br />Sample Matrix Spike <br />Solids, Total Dissolved TDS @ 180 C <br />1580 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 6 of 20 <br />Revise ate. 03 0 <br />Report Date: <br />02/18/14 <br />Work Order: <br />C14020002 <br />RL <br />° /.REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Batch: TDS140204A <br />Run: BAL -19 140204B <br />02/04/14 15:23 <br />7 <br />Run: BAL -19 140204B <br />02/04/14 15:23 <br />20 <br />99 90 110 <br />Run: BAL -19 140204B <br />02/04/14 15:24 <br />10 <br />0.5 <br />5 <br />Run: BAL -19 140204B <br />02/04/14 15:25 <br />11 <br />98 90 110 <br />ND - Not detected at the reporting limit. <br />Page 6 of 20 <br />