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www.ewgylab.can Helena, W 071472 -0711 - Billings, W 800- 735 -4409 - Casper, WY 888 -235 -0515 <br />Gillette, WY 866 -666 -7175 - Rapid City, SO 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 />5 Laboratory Fortified Blank <br />Batch: R174170 <br />Sample ID: MB- 130529A <br />Report Date: <br />06/04/13 <br />Project: Schwartz SW 05/10/13 S26874 & S26875 & S26926 -S269 <br />Calcium <br />ND <br />Work Order: <br />C13050437 <br />FAnallyte <br />Count Result Units <br />RL <br />° /.REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.7 <br />Potassium <br />0.04 <br />mg /L <br />0.04 <br />Analytical Run: ICP4- C_130529A <br />Sample ID: ICV <br />5 Initial Calibration Verification Standard <br />0.2 <br />85 115 <br />05/29/13 14:04 <br />Calcium <br />48.8 mg /L <br />0.50 <br />98 <br />95 <br />105 <br />5 Sample Matrix Spike <br />Iron <br />4.92 mg /L <br />0.030 <br />98 <br />95 <br />105 <br />1.0 <br />Magnesium <br />48.7 mg /L <br />0.50 <br />97 <br />95 <br />105 <br />93 <br />Potassium <br />48.1 mg /L <br />0.50 <br />96 <br />95 <br />105 <br />70 130 <br />Sodium <br />49.8 mg /L <br />0.50 <br />100 <br />95 <br />105 <br />Sample ID: ICSA <br />5 Interference Check Sample A <br />1.0 <br />92 <br />70 130 <br />05/29/13 14:18 <br />Calcium <br />455 mg /L <br />0.50 <br />91 <br />80 <br />120 <br />533 mg /L <br />Iron <br />180 mg /L <br />0.030 <br />90 <br />80 <br />120 <br />0.030 <br />Magnesium <br />498 mg /L <br />0.50 <br />100 <br />80 <br />120 <br />92 <br />Potassium <br />0.0328 mg /L <br />0.50 <br />Sodium <br />0.0252 mg /L <br />0.50 <br />Sample ID: ICSAB 5 Interference Check Sample AB 05/29/13 14:22 <br />Calcium 456 mg /L 0.50 91 80 120 <br />Iron 181 mg /L 0.030 90 80 120 <br />Magnesium 501 mg /L 0.50 100 80 120 <br />Potassium 0.0626 mg /L 0.50 <br />Sodium 0.0935 mg /L 0.50 <br />Method: E200.7 <br />5 Laboratory Fortified Blank <br />Batch: R174170 <br />Sample ID: MB- 130529A <br />5 Method Blank <br />Calcium <br />Run: ICP4- C_130529A 05/29/13 14:41 <br />Calcium <br />ND <br />mg /L <br />0.02 <br />Iron <br />ND <br />mg /L <br />0.002 <br />Magnesium <br />ND <br />mg /L <br />0.01 <br />Potassium <br />0.04 <br />mg /L <br />0.04 <br />Sodium <br />ND <br />mg /L <br />0.2 <br />Sample ID: LFB- 130529A <br />5 Laboratory Fortified Blank <br />Run: ICP4- C_130529A <br />05/29/13 14:44 <br />Calcium <br />47.7 mg /L <br />0.50 <br />95 <br />85 115 <br />Iron <br />0.940 mg /L <br />0.030 <br />94 <br />85 115 <br />Magnesium <br />47.5 mg /L <br />0.50 <br />95 <br />85 115 <br />Potassium <br />47.6 mg /L <br />0.50 <br />95 <br />85 115 <br />Sodium <br />48.0 mg /L <br />0.50 <br />96 <br />85 115 <br />Sample ID: C13050521- 003BMS2 <br />5 Sample Matrix Spike <br />Run: ICP4- C_130529A <br />05/29/13 23:26 <br />Calcium <br />541 mg /L <br />1.0 <br />89 <br />70 130 <br />Iron <br />5.33 mg /L <br />0.030 <br />93 <br />70 130 <br />Magnesium <br />296 mg /L <br />1.0 <br />94 <br />70 130 <br />Potassium <br />253 mg /L <br />1.0 <br />95 <br />70 130 <br />Sodium <br />466 mg /L <br />1.0 <br />92 <br />70 130 <br />Sample ID: C13050521- 003BMSD2 <br />5 Sample Matrix Spike Duplicate <br />Run: ICP4- C_130529A <br />05/29/13 23:29 <br />Calcium <br />533 mg /L <br />1.0 <br />86 <br />70 130 1.4 <br />20 <br />Iron <br />5.22 mg /L <br />0.030 <br />91 <br />70 130 2.1 <br />20 <br />Magnesium <br />291 mg /L <br />1.0 <br />92 <br />70 130 1.6 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit <br />MDC - Minimum detectable concentration <br />Page 18 of 40 <br />