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www.mweab.com Helena, MT 677- 472 -0711 - Billings, w 808 - 735 -4469 - Casper, WY 888- 235 -0515 <br />Gillette, WY 866- 686 -7175 - Rapid City, SD 886- 672 -1225 - College Station, T% 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz GW 6/6/2013 S26941 <br />Analyte Count Result Units <br />Method: <br />E200.7 <br />85 115 <br />Sample ID: <br />LFB- 130619A <br />8 Laboratory Fortified Blank <br />Manganese <br />85 115 <br />0 926 mg /L <br />Potassium <br />0.50 <br />46.7 mg /L <br />Sodium <br />47.2 mg /L <br />Zinc <br />92 <br />0.921 mg /L <br />Sample ID: <br />C13060270- 001CMS2 <br />8 Sample Matrix Spike <br />Aluminum <br />Run: ICP4- C_130619A <br />2.06 mg /L <br />Calcium <br />0.030 <br />248 mg /L <br />Iron <br />1.93 mg /L <br />Magnesium <br />92 <br />157 mg /L <br />Manganese <br />1.89 mg /L <br />Potassium <br />70 130 <br />106 mg /L <br />Sodium <br />1.0 <br />140 mg /L <br />Zinc <br />1.86 mg /L <br />Sample ID: <br />C13060270 -001 CMSD2 <br />8 Sample Matrix Spike Duplicate <br />Aluminum <br />1.95 mg /L <br />Calcium <br />70 130 <br />246 mg /L <br />Iron <br />1.0 <br />1.88 mg /L <br />Magnesium <br />155 mg /L <br />Manganese <br />90 <br />1.86 mg /L <br />Potassium <br />104 mg /L <br />Sodium <br />Run: ICP4- C_130619A <br />138 mg /L <br />Zinc <br />0.030 <br />1.83 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 07/08/13 <br />Work Order: C13060270 <br />RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: R175001 <br />Run: ICP4 -C 130619A 06/19/1313:47 <br />0.010 <br />93 <br />85 115 <br />0.50 <br />93 <br />85 115 <br />0.50 <br />94 <br />85 115 <br />0.010 <br />92 <br />85 115 <br />Run: ICP4- C_130619A <br />06/19/13 22:36 <br />0.030 <br />100 <br />70 130 <br />1.0 <br />92 <br />70 130 <br />0.030 <br />94 <br />70 130 <br />1.0 <br />97 <br />70 130 <br />0.0020 <br />93 <br />70 130 <br />1.0 <br />98 <br />70 130 <br />1.0 <br />97 <br />70 130 <br />0.010 <br />90 <br />70 130 <br />Run: ICP4- C_130619A <br />06/19/13 22:39 <br />0.030 <br />95 <br />70 130 <br />5.1 <br />20 <br />1.0 <br />89 <br />70 130 <br />1.1 <br />20 <br />0.030 <br />92 <br />70 130 <br />2.8 <br />20 <br />1.0 <br />95 <br />70 130 <br />1.4 <br />20 <br />0.0020 <br />91 <br />70 130 <br />1.4 <br />20 <br />1.0 <br />96 <br />70 130 <br />1.9 <br />20 <br />1.0 <br />94 <br />70 130 <br />1.8 <br />20 <br />0.010 <br />89 <br />70 130 <br />1.5 <br />20 <br />ND - Not detected at the reporting limit. <br />Page 9 of 21 <br />