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www.en oisb.com j Helena, MT 877 -472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888 -235 -0515 <br />o Ae�jtlrstfiresA�nc°S+bscr IM2 J 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: <br />Cotter Corporation <br />Report Date: <br />07/05/13 <br />Project: <br />Schwartz GW 06/07/13 S26942 & S26943 <br />Work Order: <br />C13060291 <br />Analyte <br />Count Result Units <br />RL ° /cREC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E200.7 <br />Batch: R175001 <br />Sample ID: C13060270- 001CMS2 <br />7 Sample Matrix Spike <br />Run: ICP4- C_130619A <br />06/19/13 22:36 <br />Aluminum <br />2.06 mg /L <br />0.030 <br />100 <br />70 130 <br />Calcium <br />248 mg /L <br />1.0 <br />92 <br />70 130 <br />Iron <br />1.93 mg /L <br />0.030 <br />94 <br />70 130 <br />Magnesium <br />157 mg /L <br />1.0 <br />97 <br />70 130 <br />Manganese <br />1.89 mg /L <br />0.0020 <br />93 <br />70 130 <br />Potassium <br />106 mg /L <br />1.0 <br />98 <br />70 130 <br />Sodium <br />140 mg /L <br />10 <br />97 <br />70 130 <br />Sample ID: C13060270- 001CMSD2 <br />7 Sample Matrix Spike Duplicate <br />Run: ICP4- C_130619A <br />06/19/13 22:39 <br />Aluminum <br />1.95 mg /L <br />0.030 <br />95 <br />70 130 <br />5.1 <br />20 <br />Calcium <br />246 mg /L <br />10 <br />89 <br />70 130 <br />1.1 <br />20 <br />Iron <br />1.88 mg /L <br />0.030 <br />92 <br />70 130 <br />2.8 <br />20 <br />Magnesium <br />155 mg /L <br />1.0 <br />95 <br />70 130 <br />1.4 <br />20 <br />Manganese <br />1.86 mg /L <br />0.0020 <br />91 <br />70 130 <br />1.4 <br />20 <br />Potassium <br />104 mg /L <br />1.0 <br />96 <br />70 130 <br />1.9 <br />20 <br />Sodium <br />138 mg /L <br />1.0 <br />94 <br />70 130 <br />1.8 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 11 of 24 <br />