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• r0k, www.erierdab.com Helena, k(r 877- 472 -0711 • Billings, MY 808- 7354489 • Casper, WY 888 - 235-0513 <br />Asdp(ml;mdkrrraSYaea 183T Gillette, WY 866486 -1175 • Rapid City, SD 886 -672 -1225 • College station, YX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz SW 5/21/13 S26991 - S26995 <br />Analyte Count Result Units <br />Method: E200.8 <br />%REC Low Limit <br />Sample ID: C13050878- 001BMS3 <br />10 Sample Matrix Spike <br />Sample ID: C13050878- 001BMSD <br />10 Sample Matrix Spike Duplicate <br />Aluminum <br />2.28 mg /L <br />Antimony <br />0.561 mg /L <br />Arsenic <br />0.502 mg /L <br />Chromium <br />0.468 mg /L <br />Copper <br />0.526 mg /L <br />Lead <br />0.507 mg /L <br />Manganese <br />2.34 mg /L <br />Molybdenum <br />0.549 mg /L <br />Silver <br />0.0521 mg /L <br />Thallium <br />0.479 mg /L <br />Method: E200.8 <br />00010 <br />Sample ID: ICV <br />Initial Calibration Verification S <br />Uranium <br />0.0510 mg /L <br />RL <br />%REC Low Limit <br />Report Date: <br />Work Order: <br />High Limit RPD <br />06/27/13 <br />013050860 <br />RPDLimit Qual <br />Batch: R174380 <br />Sample ID: LRB <br />Method Blank <br />Batch: 37651 <br />06/04/13 15:45 <br />Uranium <br />Run: ICPMS2- C_130530A <br />05/30/13 18:46 <br />103 <br />90 110 <br />Run: ICPMS2- C_130530A <br />05/30/13 18:48 <br />0 030 <br />90 <br />70 <br />130 3.9 <br />20 <br />0.0010 <br />112 <br />70 <br />130 0.8 <br />20 <br />00010 <br />100 <br />70 <br />130 1.2 <br />20 <br />0.0050 <br />93 <br />70 <br />130 0.5 <br />20 <br />0.0050 <br />100 <br />70 <br />130 0.5 <br />20 <br />0.0010 <br />101 <br />70 <br />130 0.1 <br />20 <br />00010 <br />94 <br />70 <br />130 0.3 <br />20 <br />0.0010 <br />109 <br />70 <br />130 1.2 <br />20 <br />0.0010 <br />104 <br />70 <br />130 0.5 <br />20 <br />0.00050 <br />96 <br />70 <br />130 0.9 <br />20 <br />112 <br />70 130 2.4 <br />20 <br />Analytical Run ICPMS2- C_130604A <br />tandard <br />06/04/13 16:26 <br />0.00030 <br />102 <br />90 <br />110 <br />Method: E200.8 <br />Batch: R174380 <br />Sample ID: LRB <br />Method Blank <br />Run: ICPMS2- C_130604A <br />06/04/13 15:45 <br />Uranium <br />3E -05 mg /L <br />1 E -05 <br />103 <br />90 110 <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Run: ICPMS2- C_130604A <br />06/04/13 15:48 <br />Uranium <br />0.0541 mg /L <br />0.00030 <br />108 85 115 <br />Sample ID: C13050841- 008BMS4 <br />Sample Matrix Spike <br />06/17/13 17:14 <br />Run: ICPMS2- C_130604A <br />06/04/13 17:43 <br />Uranium <br />0.284 mg /L <br />0.00030 <br />70 130 <br />A <br />Sample ID: C13050841- 008BMSD <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130604A <br />06/04/13 17:46 <br />Uranium <br />0.288 mg /L <br />0.00030 <br />70 130 1.7 <br />20 A <br />Method: E200.8 <br />Analytical Run: ICPMS2- C_130617A <br />Sample ID: ICV <br />Initial Calibration Verification Standard <br />06/17/13 15:25 <br />Uranium <br />0.0514 mg /L <br />0.00030 <br />103 <br />90 110 <br />Method: E200.8 <br />Batch: 37651 <br />Sample ID: MB -37651 <br />Method Blank <br />Run: ICPMS2- C_130617A <br />06/17/13 17:14 <br />Uranium <br />0.0002 mg /L <br />1 E -05 <br />Sample ID: LCS3 -37651 <br />Laboratory Control Sample <br />Run: ICPMS2- C_130617A <br />06/17/13 17:18 <br />Uranium <br />0.558 mg /L <br />0.00030 <br />112 <br />85 115 <br />Sample ID: C13050881- 001CMS3 <br />Sample Matrix Spike <br />Run: ICPMS2- C_130617A <br />06/17/13 17:30 <br />Uranium <br />0.577 mg /L <br />0.00030 <br />114 <br />70 130 <br />Sample ID: C13050881- 001CMSD <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130617A <br />06/17/13 17:32 <br />Uranium <br />0.563 mg /L <br />0.00030 <br />112 <br />70 130 2.4 <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 17 of 31 <br />