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• www.vwm4ab.com � Helena, MT 877 - 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 - 235 -0515 <br />n AatA"Exe++Mrura 2w Im J Gillette, WY 866- 686 -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 />Report Date: <br />07/05/13 <br />Project: Schwartz GW 06/07/13 S26942 & S26943 <br />Work Order: <br />013060291 <br />FAnalyte <br />Count Result Units <br />RL <br />%REC <br />Low Limit High Limit RPD <br />RPDLimit Dual <br />Method: <br />E200.8 <br />Analytical Run: <br />ICPMS2- C_130703A <br />Sample ID: <br />ICV <br />Initial Calibration Verification Standard <br />07/03/13 11:18 <br />Zinc <br />0.0505 mg /L <br />0.0010 <br />101 <br />90 110 <br />Method: <br />E200.8 <br />Batch- R175514 <br />Sample ID: <br />LRB <br />Method Blank <br />Run: ICPMS2- C_130703A <br />07/03/13 11:43 <br />Zinc <br />0.001 mg /L <br />0.0006 <br />Sample ID: <br />LFB <br />Laboratory Fortified Blank <br />Run: ICPMS2- C_130703A <br />07/03/13 11:47 <br />Zinc <br />0.0551 mg /L <br />0.0010 <br />108 <br />85 115 <br />Sample ID: <br />C13060291- 002CMS4 <br />Sample Matrix Spike <br />Run: ICPMS2- C_130703A <br />07/03/13 12:47 <br />Zinc <br />0.0807 mg /L <br />0.010 <br />96 <br />70 130 <br />Sample ID: <br />C13060291- 002CMSD4 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130703A <br />07/03/13 12:50 <br />Zinc <br />0.0813 mg /L <br />0.010 <br />97 <br />70 130 0.7 <br />20 <br />Method: <br />E200.8 <br />Analytical Run: <br />ICPMS4- C_130626A <br />Sample ID: <br />ICV <br />Initial Calibration Verification Standard <br />06/25/13 14:27 <br />Arsenic <br />0.0517 mg /L <br />0.0010 <br />103 <br />90 110 <br />Method: <br />E200.8 <br />Batch. 37830 <br />Sample ID: <br />MB -37830 <br />Method Blank <br />Run: ICPMS4- C_130626A <br />06/26/13 18:04 <br />Arsenic <br />0.005 mg /L <br />0.0004 <br />Sample ID: <br />LCS3 -37830 <br />Laboratory Control Sample <br />Run: ICPMS4- C_130626A <br />06/26/13 18:08 <br />Arsenic <br />0.466 mg /L <br />0.0010 <br />92 <br />85 115 <br />Sample ID: <br />C13060268- 001BMS3 <br />Sample Matrix Spike <br />Run: ICPMS4- C_130626A <br />06/26/13 18:33 <br />Arsenic <br />0.533 mg /L <br />0.0010 <br />104 <br />70 130 <br />Sample ID: <br />C13060268 -001 BMSD3 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_130626A <br />06/26/13 18:53 <br />Arsenic <br />0.536 mg /L <br />0.0010 <br />105 <br />70 130 0.7 <br />20 <br />Method: <br />E200.8 <br />Analytical Run: <br />ICPMS4- C_130628A <br />Sample ID: <br />ICV <br />Initial Calibration Verification Standard <br />06/28/13 11:58 <br />Silver <br />0.0200 mg /L <br />0.0010 <br />100 <br />90 110 <br />Method: <br />E200.8 <br />Batch: 37830 <br />Sample ID: <br />MB -37830 <br />Method Blank <br />Run: ICPMS4- C_130628A <br />06/28/13 20:54 <br />Silver <br />0.0002 mg /L <br />0.0002 <br />Sample ID: <br />LCS3 -37830 <br />Laboratory Control Sample <br />Run: ICPMS4- C_130628A <br />06/28/13 20:59 <br />Silver <br />0.0450 mg /L <br />0.0010 <br />90 <br />85 115 <br />Sample ID: <br />C13060268 -001 BMS3 <br />Sample Matrix Spike <br />Run: ICPMS4- C_130628A <br />06/28/13 21:24 <br />Silver <br />0.0480 mg /L <br />0.0010 <br />96 <br />70 130 <br />Sample ID: <br />013060268 -001 BMSD3 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_130628A <br />06/28/13 21:27 <br />Silver <br />0.0494 mg /L <br />0.0010 <br />99 <br />70 130 2.9 <br />20 <br />Qualifiers: <br />RL - Analyte <br />reporting limit. <br />ND - <br />Not detected at the reporting limit <br />MDC - Minimum detectable concentration <br />Page 14 of 24 <br />