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www.vwolab.com ( Helena, MT 877- 472 -0711 • Billings, MT 600 - 735 -4489 • Casper, WY 888 - 235 -8515 <br />A#&Y&W Ewmftw Maw IN2 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 Report Date: 07/08/13 <br />Project: Schwartz GW 6/6/2013 S26941 Work Order: C13060270 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.7 <br />478 <br />mg /L <br />458 <br />mg /L <br />178 <br />Analytical Run: ICP4- C_130619A <br />Sample ID: ICV <br />8 Initial Calibration Verification Standard <br />0.00609 <br />mg /L <br />06/19/13 13:06 <br />Aluminum <br />4.88 <br />mg /L <br />0.10 <br />98 <br />95 <br />105 <br />Calcium <br />49.5 <br />mg /L <br />0.50 <br />99 <br />95 <br />105 <br />Iron <br />4.96 <br />mg /L <br />0.030 <br />99 <br />95 <br />105 <br />Magnesium <br />49.7 <br />mg /L <br />0.50 <br />99 <br />95 <br />105 <br />Manganese <br />478 <br />mg /L <br />0.010 <br />96 <br />95 <br />105 <br />Potassium <br />47.9 <br />mg /L <br />0.50 <br />96 <br />95 <br />105 <br />Sodium <br />49.4 <br />mg /L <br />0.50 <br />99 <br />95 <br />105 <br />Zinc <br />0.968 <br />mg /L <br />0.010 <br />97 <br />95 <br />105 <br />Sample ID: ICSA <br />Aluminum <br />Calcium <br />I ron <br />Magnesium <br />Manganese <br />Potassium <br />Sodium <br />Zinc <br />Sample ID: ICSAB <br />Aluminum <br />Calcium <br />Iron <br />Magnesium <br />Manganese <br />Potassium <br />Sodium <br />Zinc <br />8 Interference Check Sample A <br />478 <br />mg /L <br />458 <br />mg /L <br />178 <br />mg /L <br />501 <br />mg /L <br />0.00609 <br />mg /L <br />0.0174 <br />mg /L <br />- 0.0637 <br />mg /L <br />0.0196 <br />mg /L <br />8 Interference Check Sample AB <br />475 <br />mg /L <br />467 <br />mg /L <br />179 <br />mg /L <br />502 <br />mg /L <br />0.453 <br />mg /L <br />0.0192 <br />mg /L <br />0.00366 <br />mg /L <br />0.849 <br />mg /L <br />0.10 <br />0.50 <br />0.030 <br />0.50 <br />0.010 <br />0.50 <br />0.50 <br />0.010 <br />0.10 <br />050 <br />0.030 <br />0.50 <br />0.010 <br />0.50 <br />0.50 <br />0.010 <br />96 <br />80 <br />120 <br />92 <br />80 <br />120 <br />89 <br />80 <br />120 <br />100 <br />80 <br />120 <br />95 <br />80 <br />120 <br />93 <br />80 <br />120 <br />89 <br />80 <br />120 <br />100 <br />80 <br />120 <br />91 <br />80 <br />120 <br />85 <br />80 <br />120 <br />06/19/13 13:20 <br />06/19/13 13:24 <br />Method: E200.7 <br />Batch: R175001 <br />Sample ID: MB- 130619A <br />8 Method Blank <br />Run: ICP4- C_130619A 06/19/13 13:43 <br />Aluminum <br />ND mg /L <br />0.009 <br />Calcium <br />ND mg /L <br />0.02 <br />Iron <br />ND mg /L <br />0.002 <br />Magnesium <br />0.06 mg /L <br />0.01 <br />Manganese <br />ND mg /L <br />0.0010 <br />Potassium <br />ND mg /L <br />0.04 <br />Sodium <br />ND mg /L <br />0.2 <br />Zinc <br />0.003 mg /L <br />0.001 <br />Sample ID: LFB- 130619A <br />8 Laboratory Fortified Blank <br />Run: ICP4- C_130619A 06/19/13 13:47 <br />Aluminum <br />0.951 mg /L <br />0.10 <br />95 <br />85 115 <br />Calcium <br />47.8 mg /L <br />0.50 <br />96 <br />85 115 <br />Iron <br />0.956 mg /L <br />0.030 <br />96 <br />85 115 <br />Magnesium <br />47.8 mg /L <br />0.50 <br />96 <br />85 115 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 8 of 21 <br />