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• Www.enc dab.com Helena, MT 877 -472 -0711 • Billings, MT 808 -735 -4169 • Casper, WY 888- 235 -8515 <br />'v10 liv Gillette, WY 866 -686 -7175 • Rapid City, So 886- 672 -1225 • College Station, TX 888 -698 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />02/26/14 <br />Project: Schwartz - GW 2/5/14 S27350 <br />Work Order: <br />C14020159 <br />Analyte Count Result Units <br />RL <br />%REC <br />Low Limit <br />High Limit <br />RPD <br />RPDLimit Quay <br />Method: E200.7 <br />Analytical Run- ICP2- C_140210A <br />Sample ID: ICV <br />4 Initial Calibration Verification Standard <br />02/10/14 12:17 <br />Aluminum <br />4.99 mg /L <br />0.10 <br />100 <br />95 <br />105 <br />Iron <br />5.08 mg /L <br />0.030 <br />102 <br />95 <br />105 <br />Manganese <br />5.01 mg /L <br />0.010 <br />100 <br />95 <br />105 <br />Zinc <br />0.976 mg /L <br />0.010 <br />98 <br />95 <br />105 <br />Sample ID: ICSA <br />4 Interference Check Sample A <br />02/10/14 12:45 <br />Aluminum <br />497 mg /L <br />0.10 <br />99 <br />80 <br />120 <br />Iron <br />188 mg /L <br />0.030 <br />94 <br />80 <br />120 <br />Manganese <br />0.000100 mg /L <br />0.010 <br />Zinc <br />-00145 mg /L <br />0.010 <br />Sample ID: ICSAB <br />4 Interference Check Sample AB <br />02/10/14 12:49 <br />Aluminum <br />502 mg /L <br />0.10 <br />100 <br />80 <br />120 <br />Iron <br />191 mg /L <br />0.030 <br />96 <br />80 <br />120 <br />Manganese <br />0.502 mg /L <br />0.010 <br />100 <br />80 <br />120 <br />Zinc <br />0.976 mg /L <br />0.010 <br />98 <br />80 <br />120 <br />Method: E200.7 <br />Batch: 40564 <br />Sample ID: MB -40564 <br />4 Method Blank <br />Run: ICP2- C_140210A <br />02/10/14 16:02 <br />Aluminum <br />ND mg /L <br />0.009 <br />Iron <br />ND mg /L <br />0.005 <br />Manganese <br />ND mg /L <br />0.0002 <br />Zinc <br />0.004 mg /L <br />0.002 <br />Sample ID: LCS3 -40564 <br />4 Laboratory Control Sample <br />Run: ICP2- C_140210A <br />02/10/14 16:06 <br />Aluminum <br />2.52 mg /L <br />0.030 <br />101 <br />85 <br />115 <br />Iron <br />2.55 mg /L <br />0.030 <br />102 <br />85 <br />115 <br />Manganese <br />2.50 mg /L <br />0.0010 <br />100 <br />85 <br />115 <br />Zinc <br />0.504 mg /L <br />0.010 <br />100 <br />85 <br />115 <br />Sample ID: C14020127- 001DMS3 <br />4 Sample Matrix Spike <br />Run- ICP2- C_140210A <br />02/10/14 16:18 <br />Aluminum <br />2.55 mg /L <br />0.047 <br />102 <br />70 <br />130 <br />Iron <br />2.61 mg /L <br />0.030 <br />102 <br />70 <br />130 <br />Manganese <br />2.52 mg /L <br />0.0011 <br />100 <br />70 <br />130 <br />Zinc <br />0.514 mg /L <br />0.010 <br />100 <br />70 <br />130 <br />Sample ID: C14020127 -001 DMSD3 <br />4 Sample Matrix Spike Duplicate <br />Run: ICP2- C_140210A <br />02/10/14 16:22 <br />Aluminum <br />2.58 mg /L <br />0.047 <br />103 <br />70 <br />130 <br />1.0 <br />20 <br />Iron <br />2.61 mg /L <br />0.030 <br />102 <br />70 <br />130 <br />0.0 <br />20 <br />Manganese <br />2.52 mg /L <br />0.0011 <br />99 <br />70 <br />130 <br />0.4 <br />20 <br />Zinc <br />0.514 mg /L <br />0.010 <br />100 <br />70 <br />130 <br />0.1 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - <br />Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 7 of 20 <br />