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www- mgylab.com <br />Helena, MT 677472 -0711 • Billings, MT 600 - 735 -4469 • Casper, WY 888- 235 -0515 <br />'t Gillette, WY 866 -666 -7175 • <br />Rapid City, SD 886 -672 -1225 • College Station, TX 888 - 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY <br />Branch <br />Client: Cotter Corporation <br />Report Date: <br />07/08/13 <br />Project: Schwartz GW 6/6/2013 S26941 <br />Work Order: <br />C13060270 <br />[Analyte <br />Count Result Units <br />RL <br />%REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: <br />E200.7 <br />Analytical Run: ICP4- C_130612A <br />Sample ID: <br />ICV 4 Initial Calibration Verification Standard <br />06/12/13 11.07 <br />Aluminum <br />4.90 mg /L <br />0.10 <br />98 <br />95 <br />105 <br />Iron <br />4.93 mg /L <br />0.030 <br />99 <br />95 <br />105 <br />Manganese <br />4.78 mg /L <br />0.010 <br />96 <br />95 <br />105 <br />Zinc <br />0.965 mg /L <br />0.010 <br />97 <br />95 <br />105 <br />Sample ID: <br />ICSA 4 Interference Check Sample A <br />06/12/13 11:21 <br />Aluminum <br />475 mg /L <br />0.10 <br />95 <br />80 <br />120 <br />Iron <br />176 mg /L <br />0.030 <br />88 <br />80 <br />120 <br />Manganese <br />- 0.0172 mg /L <br />0.010 <br />Zinc <br />0.0164 mg /L <br />0.010 <br />Sample ID: <br />ICSAB 4 Interference Check Sample AB <br />06/12/13 11:25 <br />Aluminum <br />491 mg /L <br />0.10 <br />98 <br />80 <br />120 <br />Iron <br />184 mg /L <br />0.030 <br />92 <br />80 <br />120 <br />Manganese <br />0.440 mg /L <br />0.010 <br />88 <br />80 <br />120 <br />Zinc <br />0.865 mg /L <br />0.010 <br />86 <br />80 <br />120 <br />Method: <br />E200.7 <br />Batch: 37830 <br />Sample ID: <br />MB -37830 4 Method Blank <br />Run: ICP4- C_130612A <br />06/12/13 15:52 <br />Aluminum <br />ND mg /L <br />0.01 <br />Iron <br />ND mg /L <br />0.004 <br />Manganese <br />ND mg /L <br />0.0002 <br />Zinc <br />0.003 mg /L <br />0.001 <br />Sample ID: <br />LCS3 -37830 4 Laboratory Control Sample <br />Run: ICP4- C_130612A <br />06/12/13 16:10 <br />Aluminum <br />2.26 mg /L <br />0.030 <br />91 <br />85 <br />115 <br />Iron <br />2.26 mg /L <br />0.030 <br />90 <br />85 <br />115 <br />Manganese <br />2.18 mg /L <br />0.0010 <br />87 <br />85 <br />115 <br />Zinc <br />0.425 mg /L <br />0.010 <br />85 <br />85 <br />115 <br />Sample ID: <br />C13060244- 004CMS3 4 Sample Matrix Spike <br />Run: ICP4- C_130612A <br />06/12/13 16:18 <br />Aluminum <br />8.63 mg /L <br />0.030 <br />216 <br />70 <br />130 <br />S <br />Iron <br />5.38 mg /L <br />0.030 <br />113 <br />70 <br />130 <br />Manganese <br />2.43 mg /L <br />0.0010 <br />96 <br />70 <br />130 <br />Zinc <br />0.479 mg /L <br />0.010 <br />92 <br />70 <br />130 <br />Sample ID: <br />C13060244- 004CMSD3 4 Sample Matrix Spike Duplicate <br />Run: ICP4- C_130612A <br />06/12/13 16:21 <br />Aluminum <br />8.56 mg /L <br />0.030 <br />213 <br />70 <br />130 0.9 <br />20 S <br />Iron <br />5.35 mg /L <br />0.030 <br />112 <br />70 <br />130 0.5 <br />20 <br />Manganese <br />2.43 mg /L <br />0.0010 <br />96 <br />70 <br />130 0.0 <br />20 <br />Zinc <br />0.483 mg /L <br />0.010 <br />93 <br />70 <br />130 0.9 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration S - Spike recovery outside of advisory limits. <br />Page 7 of 21 <br />