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10, www.awulab.com Helena, W 877.472 -0711 a Billings. W 800 -735 -4489 a Casper, WY 888- 235 -0515 <br />IadyBrd&W1Mw2M 1JU Gillette, WY 866 -686 -7175 a Rapid City, SD 886 -672 -1225 a College Station, TX 888- 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 05/01/13 <br />Project: Schwartz SW 4/03/13 S26860 Work Order: C13040198 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 <br />Analytical Run: ICPMS4- C_130411A <br />Sample ID: ICV <br />5 Initial Calibration Verification Standard <br />Batch: R172412 <br />Sample ID: LRB <br />04/11/13 15:18 <br />Calcium <br />10.0 mg /L 0.0066 <br />100 <br />90 <br />110 <br />Iron <br />0.981 mg /L 0.0010 <br />98 <br />90 <br />110 <br />Magnesium <br />9.88 mg /L 0.0027 <br />99 <br />90 <br />110 <br />Potassium <br />9.94 mg /L 0.0041 <br />99 <br />90 <br />110 <br />Sodium <br />9.95 mg /L 0.0043 <br />99 <br />90 <br />110 <br />Method: E200.8 <br />Batch: R172412 <br />Sample ID: LRB <br />5 <br />Method Blank <br />Run: ICPMS4- C_130411A <br />04/11/13 15:52 <br />Calcium <br />ND mg /L <br />0.007 <br />Iron <br />0.0007 mg /L <br />0.0006 <br />Magnesium <br />0.003 mg /L <br />0.003 <br />Potassium <br />0.06 mg /L <br />0.004 <br />Sodium <br />0.1 mg /L <br />0.004 <br />Sample ID: LFB <br />5 <br />Laboratory Fortified Blank <br />Run: ICPMS4- C_130411A <br />04/11/13 15:57 <br />Calcium <br />12.5 mg /L <br />0.0066 <br />100 <br />85 115 <br />Iron <br />1.27 mg /L <br />0.0010 <br />101 <br />85 115 <br />Magnesium <br />12.5 mg /L <br />0.0027 <br />100 <br />85 115 <br />Potassium <br />12.5 mg /L <br />0.0041 <br />99 <br />85 115 <br />Sodium <br />12.6 mg /L <br />0.0043 <br />100 <br />85 115 <br />Sample ID: C13040231- 006CMS4 <br />5 <br />Sample Matrix Spike <br />Run: ICPMS4- C_130411A <br />04/12/13 01:18 <br />Calcium <br />93.1 mg /L <br />1.0 <br />70 130 <br />A <br />Iron <br />1.27 mg /L <br />0.030 <br />95 <br />70 130 <br />Magnesium <br />17.4 mg /L <br />1.0 <br />100 <br />70 130 <br />Potassium <br />14.6 mg /L <br />1.0 <br />96 <br />70 130 <br />Sodium <br />49.0 mg /L <br />1.0 <br />100 <br />70 130 <br />Sample ID: C13040231- 006CMSD <br />5 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_130411 A <br />04/12/13 01:22 <br />Calcium <br />94.8 mg /L <br />1.0 <br />70 130 <br />1.8 <br />20 A <br />Iron <br />1.24 mg /L <br />0.030 <br />92 <br />70 130 <br />2.9 <br />20 <br />Magnesium <br />17.6 mg /L <br />1.0 <br />101 <br />70 130 <br />1.3 <br />20 <br />Potassium <br />15.2 mg /L <br />1.0 <br />100 <br />70 130 <br />3.6 <br />20 <br />Sodium <br />49.9 mg /L <br />1.0 <br />106 <br />70 130 <br />1.8 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />Page 15 of 25 <br />