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www.meab.com f Helena, MT 817- 472 -0711 a Billings, Mr 800 -735 -4489 • Casper, WY 888- 235 -8515 <br />9= IM 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 />06/19/13 <br />Project: Schwartz GW 5/23/2013 S26999 & S27000 <br />Work Order: <br />C13050906 <br />Analyte <br />Count Result Units <br />RL <br />%REC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E300.0 <br />Batch: R174147 <br />Sample ID: ICB- 052813 -01 <br />2 Method Blank <br />Run: IC1- C_130528A <br />05/28/13 16:48 <br />Chloride <br />ND mg /L <br />0.07 <br />Sulfate <br />02 mg /L <br />0.08 <br />Sample ID: LFB- 052813 -01 <br />2 Laboratory Fortified Blank <br />Run: IC1- C_130528A <br />05/28/13 17:05 <br />Chloride <br />9.34 mg /L <br />1.0 <br />93 <br />90 110 <br />Sulfate <br />376 mg /L <br />1.0 <br />94 <br />90 110 <br />Sample ID: C13050907- 001BMS <br />2 Sample Matrix Spike <br />Run: IC1- C_130528A <br />05/29/13 06:26 <br />Chloride <br />225 mg /L <br />4.2 <br />95 <br />90 110 <br />Sulfate <br />773 mg /L <br />17 <br />94 <br />90 110 <br />Sample ID: 013050907- 001BMSD <br />2 Sample Matrix Spike Duplicate <br />Run IC1- C_130528A <br />05/29/13 06:43 <br />Chloride <br />219 mg /L <br />4.2 <br />92 <br />90 110 2.4 <br />20 <br />Sulfate <br />752 mg /L <br />17 <br />91 <br />90 110 2.7 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 16 of 24 <br />