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M9. www.vw&4ab.com Helena, MT 877 -472 -0711 a Billings, MT 800- 735 -4489 a Casper, WY 888- 235 -0515 <br />r ' <br />MR Gillette, WY 866 -686 -1175 a Rapid City, SO 886- 672 -1225 a 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 />06/19/13 <br />Project: Schwartz GW 5/23/2013 <br />S26999 & S27000 <br />Work Order: <br />C13050906 <br />Analyte Count Result Units <br />RL <br />%REC Low Limit High Limit RPD <br />RPDLimit Quay <br />Method: A2540 C <br />Batch TDS130529A <br />Sample ID: M13- 1_130529A <br />Method Blank <br />Run: BAL -19 130529B <br />05/29/13 15:52 <br />Solids, Total Dissolved TDS @ 180 C <br />ND mg /L <br />10 <br />Sample ID: LCS- 2_130529A <br />Laboratory Control Sample <br />Run: BAL- 19_130529B <br />05/29/13 15:52 <br />Solids, Total Dissolved TDS @ 180 C <br />1960 mg /L <br />20 <br />98 90 110 <br />Sample ID: C13050827 -001A DUP <br />Sample Duplicate <br />Run: BAL- 19_130529B <br />05/29/13 15:53 <br />Solids, Total Dissolved TDS @ 180 C <br />64900 mg /L <br />500 <br />0.6 <br />5 <br />Sample ID: 013050899 -004A MS <br />Sample Matrix Spike <br />Run: BAL- 19_130529B <br />05/29/13 15:55 <br />Solids, Total Dissolved TDS @ 180 C <br />86600 mg /L <br />500 <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 />