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wwmenergylabtom Helena, MT 877472 -0711 • Billings, W 808 -735 -4489 • Casper, WY 888- 235 -8515 <br />' awh= sinu Im J Gillette, W 866 -686 -1175 • Rapid City, SD 888- 672 -1225 • College Station, TX 888- 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 07/16/13 <br />Project: Schwartz GW 6/23/13 S26948 Work Order: 013060891 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLlimit Qual <br />Method: E300.0 Analytical Run: IC1- C_130626A <br />Sample ID: CCV- 062613 -03 2 Continuing Calibration Verification Standard 06/27/13 03:51 <br />Chloride 9.85 mg /L 1.0 99 90 110 <br />Sulfate 38.6 mg /L 1.0 96 90 110 <br />Method: <br />E300.0 <br />Batch: R175272 <br />Sample ID: <br />ICB- 062613 -01 <br />2 <br />Method Blank <br />Chloride <br />ND mg /L <br />Sulfate <br />0.2 mg /L <br />Sample ID: <br />LFB- 062613 -01 <br />2 <br />Laboratory Fortified Blank <br />Chloride <br />98 <br />90 110 <br />9.84 mg /L <br />Sulfate <br />97 <br />90 110 <br />39.1 mg /L <br />Sample ID: <br />C13060891 -001 BMS <br />2 <br />Sample Matrix Spike <br />Chloride <br />100 <br />90 110 <br />27.2 mg /L <br />Sulfate <br />94 <br />90 110 <br />262 mg /L <br />Sample ID: <br />C13060891 -001 BMSD <br />2 <br />Sample Matrix Spike Duplicate <br />Chloride <br />101 <br />90 110 0.7 <br />27.4 mg /L <br />Sulfate <br />93 <br />90 110 0.2 <br />262 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 13 of 20 <br />Batch: R175272 <br />Run- IC1- C_130626A <br />06/26/1319:25 <br />0.07 <br />0.08 <br />Run: IC1- C_130626A <br />06/26/13 19:43 <br />1.0 <br />98 <br />90 110 <br />1.0 <br />97 <br />90 110 <br />Run: IC1- C_130626A <br />06/27/13 04:43 <br />1.0 <br />100 <br />90 110 <br />1.7 <br />94 <br />90 110 <br />Run IC1- C_130626A <br />06/27/1305:00 <br />1.0 <br />101 <br />90 110 0.7 <br />20 <br />1.7 <br />93 <br />90 110 0.2 <br />20 <br />ND - Not detected at the reporting limit. <br />Page 13 of 20 <br />