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Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 8 of 29 <br />www.ew&ab.com <br />Helena, MT 877- 472 -8111 a Billings, W 888- 735 -4489 a Casper, WY 888- 235 -8515 <br />a"'h'" N.IRV J <br />Gillette, WY 866 -666 -7175 a Rapid City, SD 888 -672 -1225 a College Station, TX 888 -698 -2218 <br />QA/QC Summary Report <br />Prepared <br />by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />05/29/13 <br />Project: Schwartz -SW 5/4/13 S26868 S26869 <br />Work Order: <br />C13050235 <br />Analyte Count Result Units <br />RL ° /6REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2540 C <br />Batch: TDS 130509A <br />Sample ID: MB- 1_130509A <br />Method Blank <br />Run: BAL -19 130509B <br />05/09/13 15:17 <br />Solids, Total Dissolved TDS @ 180 C <br />ND mg /L <br />10 <br />Sample ID: LCS- 2_130509A <br />Laboratory Control Sample <br />Run: BAL- 19_130509B <br />05/09/13 15:17 <br />Solids, Total Dissolved TDS @ 180 C <br />1960 mg /L <br />20 98 90 110 <br />Sample ID: C13050235 -001A DUP <br />Sample Duplicate <br />Run: BAL- 19_130509B <br />05/09/13 15:18 <br />Solids, Total Dissolved TDS Co) 180 C <br />135 mg /L <br />10 1.5 <br />5 <br />Sample lD: C13050235 -002A MS <br />Sample Matrix Spike <br />Run: BAL- 19_130509B <br />05/09/13 15:18 <br />Solids, Total Dissolved TDS @ 180 C <br />1250 mg /L <br />11 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 29 <br />