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• www.aweab.COM I Helena, NT 871 472 -0711 - Billings, UT 860- 735 -4489 - Casper, WY 888 - 235 -0515 <br />- AaarjtlrslEual4rcaSfaci 1952 J 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 />Report Date: <br />07/16/13 <br />Project: Schwartz GW 6/23/13 S26948 <br />Work Order: <br />013060891 <br />[Analyte Count <br />Result Units <br />RL <br />° /6REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2540 C <br />Batch: TDS 130626A <br />Sample ID: MB- 1_130626A <br />Method Blank <br />Run: BAL -19 130626A <br />06/26/13 1542 <br />Solids, Total Dissolved TDS @ 180 C <br />ND mg /L <br />10 <br />Sample ID: LCS- 2_130626A <br />Laboratory Control Sample <br />Run: BAL- 19_130626A <br />06/26/13 15.42 <br />Solids, Total Dissolved TDS @ 180 C <br />2010 mg /L <br />20 <br />100 90 110 <br />Sample lD: C13060874 -001 B MS <br />Sample Matrix Spike <br />Run: BAL- 19_130626A <br />06/26/13 15:49 <br />Solids, Total Dissolved TDS @ 180 C <br />1170 mg /L <br />11 <br />99 90 110 <br />Sample ID: C13060896 -001A DUP <br />Sample Duplicate <br />Run: BAL- 19_130626A <br />06/26/13 15:53 <br />Solids, Total Dissolved TDS @ 180 C <br />25400 mg /L <br />200 <br />3.7 <br />5 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 6 of 20 <br />