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• www.ene &lb.COM Helena, MT 817 -472 -0711 • Billings, MT 801 - 735 -4489 • Casper, WY 888 - 235 -1515 <br />} &mOwa SAW liv � Gillette, WY 866 -686 -7175 • Rapid City, SO 886- 672 -1225 • College Station, T% 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 09/30/13 <br />Project: Schwartz SW 09/05/13 S27131 Work Order: C13090222 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 <br />Analytical Run: ICPMS2- C_130918A <br />Sample ID: ICV <br />6 Initial Calibration Verification Standard <br />09/18/13 14:54 <br />Aluminum <br />0.0507 <br />mg /L <br />0.0010 <br />101 <br />90 <br />110 <br />Copper <br />0.0500 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />Manganese <br />0.0508 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Molybdenum <br />0.0502 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />Silver <br />0.0205 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Thallium <br />0.0511 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Method: E200.8 <br />Batch: R178486 <br />Sample ID: LRB <br />6 Method Blank <br />Run: ICPMS2- C_130918A <br />09/18/13 14:16 <br />Aluminum <br />ND mg /L <br />0.001 <br />Copper <br />ND mg /L <br />0.0001 <br />Manganese <br />ND mg /L <br />2E -05 <br />Molybdenum <br />ND mg /L <br />4E -05 <br />Silver <br />ND mg /L <br />5E -05 <br />Thallium <br />ND mg /L <br />9E -06 <br />Sample ID: LFB <br />6 Laboratory Fortified Blank <br />Run: ICPMS2- C_130918A <br />09/18/13 14:19 <br />Aluminum <br />0.0536 mg /L <br />0.0010 <br />107 <br />85 115 <br />Copper <br />0.0548 mg /L <br />0.0010 <br />110 <br />85 115 <br />Manganese <br />0.0518 mg /L <br />00010 <br />104 <br />85 115 <br />Molybdenum <br />0.0508 mg /L <br />00010 <br />102 <br />85 115 <br />Silver <br />0.0202 mg /L <br />0.0010 <br />101 <br />85 115 <br />Thallium <br />0.0517 mg /L <br />0.0010 <br />103 <br />85 115 <br />Sample ID: C13080326- 001CMS4 <br />6 Sample Matrix Spike <br />Run: ICPMS2- C_130918A <br />09/18/13 15:13 <br />Aluminum <br />0.0571 mg /L <br />0.030 <br />107 <br />70 130 <br />Copper <br />0.0544 mg /L <br />0.0050 <br />107 <br />70 130 <br />Manganese <br />0.161 mg /L <br />0.0010 <br />102 <br />70 130 <br />Molybdenum <br />0.0557 mg /L <br />0.0010 <br />108 <br />70 130 <br />Silver <br />0.0183 mg /L <br />0.0010 <br />91 <br />70 130 <br />Thallium <br />0.0585 mg /L <br />0.00050 <br />117 <br />70 130 <br />Sample ID: C13080326 -001 CMSD4 <br />6 Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130918A <br />09/18/13 15:16 <br />Aluminum <br />0.0563 mg /L <br />0.030 <br />105 <br />70 130 <br />1.4 <br />20 <br />Copper <br />0.0519 mg /L <br />0.0050 <br />102 <br />70 130 <br />4.9 <br />20 <br />Manganese <br />0.157 mg /L <br />0.0010 <br />94 <br />70 130 <br />2.4 <br />20 <br />Molybdenum <br />0.0550 mg /L <br />0.0010 <br />107 <br />70 130 <br />1.4 <br />20 <br />Silver <br />0.0176 mg /L <br />0.0010 <br />88 <br />70 130 <br />37 <br />20 <br />Thallium <br />0.0561 mg /L <br />0.00050 <br />112 <br />70 130 <br />4.2 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 15 of 27 <br />