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www.emoiab.com E' J Helena, MT 677 -472 -0711 0 Billings, MT 600- 735 -4489 • Casper, WY 888- 235 -0515 <br />'�'�'r Gillette, WY 866 -686 -7175 • Rapid City, SD 8BB- 672 -1225 • College Station, T% 888 - 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />06/13/13 <br />Project: Schwartz GW 5/20/13 S26987 & S26988 <br />Work Order: <br />C13050760 <br />Analyte Count Result Units <br />RL <br />%REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2540 C <br />Batch: TDS130522b <br />Sample ID: MB- 1_130522b <br />Method Blank <br />Run: BAL -19 130522B <br />05/22/13 16:52 <br />Solids, Total Dissolved TDS @ 180 C <br />ND mg /L <br />10 <br />Sample ID: LCS- 2_130522b <br />Laboratory Control Sample <br />Run: BAL- 19_130522B <br />05/22/13 16:52 <br />Solids, Total Dissolved TDS @ 180 C <br />1970 mg /L <br />20 <br />98 90 110 <br />Sample ID: C13050779 -001A DUP <br />Sample Duplicate <br />Run: BAL- 19_130522B <br />05/23/13 16:19 <br />Solids, Total Dissolved TDS @ 180 C <br />1820 mg /L <br />20 <br />2.0 <br />5 <br />Sample ID: C13050779 -003A MS <br />Sample Matrix Spike <br />Run: BAL- 19_130522B <br />05/23/13 16:20 <br />Solids, Total Dissolved TDS Co) 180 C <br />4090 mg /L <br />20 <br />99 90 110 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 8 of 24 <br />