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MEN www. allylab.com Helena, MT 877- 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 -235 -1515 <br />a*'�' t Gillette, WY 006-186 -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: <br />Cotter Corporation <br />Report Date: <br />10/14/13 <br />Project: <br />Schwartz GW 9/19/13 S27162 <br />Work Order: <br />C13090821 <br />Analyte <br />Count Result Units <br />RL ° /.REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E200.8 <br />E200.8 <br />Analytical Run: ICPMS2- C_130927A <br />Sample ID: ICV <br />5 Initial Calibration Verification Standard <br />Batch: 39145 <br />Sample ID: <br />09/27/13 16:09 <br />Arsenic <br />0.0499 mg /L 0.0010 <br />100 <br />90 <br />110 <br />Copper <br />0.0497 mg /L 0.0010 <br />99 <br />90 <br />110 <br />Lead <br />0.0502 mg /L 0.0010 <br />100 <br />90 <br />110 <br />Silver <br />0.0198 mg /L 0.0010 <br />99 <br />90 <br />110 <br />Thallium <br />0.0511 mg /L 0.0010 <br />102 <br />90 <br />110 <br />Method: <br />E200.8 <br />Batch: 39145 <br />Sample ID: <br />MB -39145 <br />5 Method Blank <br />Run: ICPMS2- C_130927A <br />09/27/13 18.53 <br />Arsenic <br />ND mg /L <br />0.0003 <br />Copper <br />ND mg /L <br />0.0004 <br />Lead <br />3E -05 mg /L <br />3E -05 <br />Silver <br />5E -05 mg /L <br />2E -05 <br />Thallium <br />0.0003 mg /L <br />0.0001 <br />Sample ID: <br />LCS3 -39145 <br />5 Laboratory Control Sample <br />Run: ICPMS2- C_130927A <br />09/27/13 19:09 <br />Arsenic <br />0.52 mg /L <br />0.0010 <br />104 <br />85 115 <br />Copper <br />0.47 mg /L <br />0.010 <br />93 <br />85 115 <br />Lead <br />0.54 mg /L <br />0.0010 <br />107 <br />85 115 <br />Silver <br />0.050 mg /L <br />0.010 <br />101 <br />85 115 <br />Thallium <br />0.50 mg /L <br />0.00040 <br />100 <br />85 115 <br />Sample ID: <br />C13090822 -001 DMS3 <br />5 Sample Matrix Spike <br />Run: ICPMS2- C_130927A <br />09/27/13 19:28 <br />Arsenic <br />1.0 mg /L <br />0.0010 <br />104 <br />70 130 <br />Copper <br />0.91 mg /L <br />0.010 <br />91 <br />70 130 <br />Lead <br />1.1 mg /L <br />0.0010 <br />110 <br />70 130 <br />Silver <br />0.098 mg /L <br />0.010 <br />98 <br />70 130 <br />Thallium <br />1.0 mg /L <br />0.00040 <br />102 <br />70 130 <br />Sample ID: <br />013090822 -001 DMSD3 <br />5 Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130927A <br />09/27/13 19:30 <br />Arsenic <br />1.0 mg /L <br />0.0010 <br />105 <br />70 130 <br />0.3 <br />20 <br />Copper <br />0.91 mg /L <br />0.010 <br />91 <br />70 130 <br />0.6 <br />20 <br />Lead <br />1.1 mg /L <br />0.0010 <br />108 <br />70 130 <br />1.2 <br />20 <br />Silver <br />0.097 mg /L <br />0.010 <br />97 <br />70 130 <br />1.3 <br />20 <br />Thallium <br />1.0 mg /L <br />0.00040 <br />101 <br />70 130 <br />1.0 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 10 of 21 <br />