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www.enerdab.com r Helena, MT 877- 472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888 -235 -8515 <br />Aw"a EMAInct Nwe ►951 ; Gillette, WY 866 -666 -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: Cotter Corporation <br />Report Date: <br />05/06/13 <br />Project: Schwartz GW 4/11/13 S26889 <br />Work Order: <br />C13040486 <br />Analyte Count <br />Result Units <br />RL <br />%REC <br />Low Limit <br />High Limit <br />RPD <br />RPDLimit Qual <br />Method: E200.7 <br />Analytical Run: ICP2- C_130422A <br />Sample ID: ICV <br />4 <br />Initial Calibration Verification Standard <br />04/22/13 11:32 <br />Aluminum <br />4.74 mg /L <br />010 <br />95 <br />95 <br />105 <br />Iron <br />5.16 mg /L <br />0.030 <br />103 <br />95 <br />105 <br />Manganese <br />5.02 mg /L <br />0.010 <br />100 <br />95 <br />105 <br />Zinc <br />1.01 mg /L <br />0.010 <br />101 <br />95 <br />105 <br />Sample ID: ICSA <br />4 <br />Interference Check Sample A <br />04/22/13 12:00 <br />Aluminum <br />495 mg /L <br />0.10 <br />99 <br />80 <br />120 <br />Iron <br />187 mg /L <br />0.030 <br />94 <br />80 <br />120 <br />Manganese <br />- 0.00140 mg /L <br />0.010 <br />Zinc <br />- 0.00530 mg /L <br />0.010 <br />Sample ID: ICSAB <br />4 <br />Interference Check Sample AB <br />04/22/13 12:04 <br />Aluminum <br />499 mg /L <br />0.10 <br />100 <br />80 <br />120 <br />Iron <br />189 mg /L <br />0.030 <br />95 <br />80 <br />120 <br />Manganese <br />0.496 mg /L <br />0.010 <br />99 <br />80 <br />120 <br />Zinc <br />0.983 mg /L <br />0.010 <br />98 <br />80 <br />120 <br />Method: E200.7 <br />Batch: 37226 <br />Sample ID: MB -37226 <br />4 <br />Method Blank <br />Run: ICP2- C_130422A <br />04/22/13 14:25 <br />Aluminum <br />ND mg /L <br />0.009 <br />Iron <br />0.01 mg /L <br />0.005 <br />Manganese <br />ND mg /L <br />0.0002 <br />Zinc <br />ND mg /L <br />0.002 <br />Sample ID: LCS3 -37226 <br />4 <br />Laboratory Control Sample <br />Run: ICP2- C_130422A <br />04/22/13 14:45 <br />Aluminum <br />2.40 mg /L <br />0.030 <br />96 <br />85 <br />115 <br />Iron <br />2.55 mg /L <br />0.030 <br />101 <br />85 <br />115 <br />Manganese <br />2.50 mg /L <br />0.0010 <br />100 <br />85 <br />115 <br />Zinc <br />0.496 mg /L <br />0.010 <br />99 <br />85 <br />115 <br />Sample ID: C13040547- 001CMS3 <br />4 <br />Sample Matrix Spike <br />Run: ICP2- C_130422A <br />04/22/13 15:13 <br />Aluminum <br />2.47 mg /L <br />0.030 <br />98 <br />70 <br />130 <br />Iron <br />2.66 mg /L <br />0.030 <br />103 <br />70 <br />130 <br />Manganese <br />2.55 mg /L <br />00010 <br />101 <br />70 <br />130 <br />Zinc <br />0.504 mg /L <br />0.010 <br />100 <br />70 <br />130 <br />Sample ID: C13040547- 001CMSD <br />4 <br />Sample Matrix Spike Duplicate <br />Run: ICP2- C_130422A <br />04/22/13 15:17 <br />Aluminum <br />2.46 mg /L <br />0.030 <br />98 <br />70 <br />130 <br />0.3 <br />20 <br />Iron <br />2.66 mg /L <br />0.030 <br />103 <br />70 <br />130 <br />0.3 <br />20 <br />Manganese <br />2.56 mg /L <br />0.0010 <br />102 <br />70 <br />130 <br />0.3 <br />20 <br />Zinc <br />0.504 mg /L <br />0.010 <br />100 <br />70 <br />130 <br />0.0 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 7 of 21 <br />