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www ena oab.com Helena, MT 877472 -0711 • Billings, W 890 - 7354489 • Casper, WY 888 - 235 -8515 <br />"WI" Ewshws 2mr.119 Gillette, WY 866 -666 -7175 • Rapid City, SD 888- 672 -1225 • College Station, TX 868 -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 01AEC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: <br />E200.7 <br />Analytical Run: ICP4- C_130925A <br />Sample ID: <br />ICV <br />4 Initial Calibration Verification Standard <br />09/25/13 12:43 <br />Aluminum <br />Sample ID: <br />4.99 mg /L <br />0.10 <br />100 <br />95 <br />105 <br />Iron <br />Aluminum <br />5.07 mg /L <br />0.030 <br />101 <br />95 <br />105 <br />Manganese <br />Iron <br />4.89 mg /L <br />0.010 <br />98 <br />95 <br />105 <br />Zinc <br />Manganese <br />0.959 mg /L <br />0.010 <br />96 <br />95 <br />105 <br />Sample ID: <br />ICSA <br />4 Interference Check Sample A <br />0.002 mg /L <br />0.001 <br />09/25/13 12:57 <br />Aluminum <br />Sample ID: <br />474 mg /L <br />0.10 <br />95 <br />80 <br />120 <br />Iron <br />Aluminum <br />177 mg /L <br />0.030 <br />88 <br />80 <br />120 <br />Manganese <br />Iron <br />- 0.0164 mg /L <br />0 010 <br />0.030 <br />102 <br />85 115 <br />Zinc <br />Manganese <br />0.00142 mg /L <br />0.010 <br />0.010 <br />99 <br />85 115 <br />Sample ID: <br />ICSAB <br />4 Interference Check Sample AB <br />0.50 mg /L <br />0.010 <br />100 <br />85 115 <br />09/25/13 13:01 <br />Aluminum <br />Sample ID: <br />481 mg /L <br />0.10 <br />96 <br />80 <br />120 <br />Iron <br />Aluminum <br />178 mg /L <br />0.030 <br />89 <br />80 <br />120 <br />Manganese <br />Iron <br />0.427 mg /L <br />0.010 <br />85 <br />80 <br />120 <br />Zinc <br />Manganese <br />0.829 mg /L <br />0.010 <br />83 <br />80 <br />120 <br />MDC - Minimum detectable concentration <br />Page 7 of 21 <br />Method: <br />E200.7 <br />Batch 39145 <br />Sample ID: <br />MB -39145 <br />4 Method Blank <br />Run: ICP4- C_130925A <br />09/25/13 18:00 <br />Aluminum <br />0.02 mg /L <br />0.009 <br />Iron <br />ND mg /L <br />0.002 <br />Manganese <br />ND mg /L <br />0.0010 <br />Zinc <br />0.002 mg /L <br />0.001 <br />Sample ID: <br />LCS3 -39145 <br />4 Laboratory Control Sample <br />Run: ICP4- C_130925A <br />09/25/13 18:04 <br />Aluminum <br />2.5 mg /L <br />0.10 <br />99 <br />85 115 <br />Iron <br />2.5 mg /L <br />0.030 <br />102 <br />85 115 <br />Manganese <br />2.5 mg /L <br />0.010 <br />99 <br />85 115 <br />Zinc <br />0.50 mg /L <br />0.010 <br />100 <br />85 115 <br />Sample ID: <br />C13090822 -001 DMS3 <br />4 Sample Matrix Spike <br />Run: ICP4- C_130925A <br />09/25/13 19:03 <br />Aluminum <br />5.2 mg /L <br />0.10 <br />104 <br />70 130 <br />Iron <br />5.2 mg /L <br />0.030 <br />105 <br />70 130 <br />Manganese <br />4.8 mg /L <br />0.010 <br />96 <br />70 130 <br />Zinc <br />095 mg /L <br />0.010 <br />95 <br />70 130 <br />Sample ID: <br />C13090822 -001 DMSD3 <br />4 Sample Matrix Spike Duplicate <br />Run: ICP4- C_130925A <br />09/25/13 19:06 <br />Aluminum <br />5.6 mg /L <br />0.10 <br />113 <br />70 130 <br />8.5 <br />20 <br />Iron <br />5.4 mg /L <br />0.030 <br />109 <br />70 130 <br />3.7 <br />20 <br />Manganese <br />5.0 mg /L <br />0.010 <br />99 <br />70 130 <br />3.0 <br />20 <br />Zinc <br />0.96 mg /L <br />0.010 <br />96 <br />70 130 <br />1.0 <br />20 <br />Qualifiers: <br />RL - Analyte <br />reporting limit. <br />ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 7 of 21 <br />