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gumTrust our People. Trust our Data. Billings, MT 800.735.4489 • Casper, WY 888.235.0515 <br />College Station, TX 888.690.2218 • Gillette, WY 866.686.7175 • Helena. MT 871.472.0711 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />E200.7 <br />Lab ID: <br />MB -44432 <br />4 Method Blank <br />Report Date: <br />05/07/15 <br />Project: Schwartz - GW 4/14/15 S27854, S27857 <br />Iron <br />0.02 <br />ND mg/L <br />Work Order: <br />C15040486 <br />Analyte <br />Count Result Units <br />RL <br />%REC Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.7 <br />Aluminum <br />2.53 mg/L <br />Iron <br />0.006 <br />Analytical Run: ICP4-C_150420A <br />Lab ID: ICV <br />4 <br />Initial Calibration Verification Standard <br />Zinc <br />0.488 mg/L <br />04/20/15 13:08 <br />Aluminum <br />4 Sample Matrix Spike <br />4.88 mg/L <br />0.10 <br />98 <br />95 <br />105 <br />2.53 mg/L <br />Iron <br />115 <br />5.02 mg/L <br />0.030 <br />100 <br />95 <br />105 <br />Manganese <br />98 <br />4.85 mg/L <br />0.010 <br />97 <br />95 <br />105 <br />Run: ICP4-C_150420A <br />Zinc <br />04/20/15 15:12 <br />0.952 mg/L <br />0.010 <br />95 <br />95 <br />105 <br />0.030 <br />Lab ID: ICSA <br />4 <br />Interference Check Sample A <br />0.0012 <br />98 <br />70 <br />04/20/15 13:27 <br />Aluminum <br />471 mg/L <br />0.10 <br />94 <br />80 <br />120 <br />Iron <br />177 mg/L <br />0.030 <br />88 <br />80 <br />120 <br />Manganese <br />-0.0193 mg/L <br />0.010 <br />Zinc <br />-0.00475 mg/L <br />0.010 <br />Lab ID: ICSAB <br />4 <br />Interference Check Sample AB <br />04/20/15 13:32 <br />Aluminum <br />461 mg/L <br />0.10 <br />92 <br />80 <br />120 <br />Iron <br />177 mg/L <br />0.030 <br />88 <br />80 <br />120 <br />Manganese <br />0.425 mg/L <br />0.010 <br />85 <br />80 <br />120 <br />Zinc <br />0.911 mg/L <br />0.010 <br />91 <br />80 <br />120 <br />Lab ID: ICSA <br />4 <br />Interference Check Sample A <br />04/20/15 19:10 <br />Aluminum <br />463 mg/L <br />0.10 <br />93 <br />80 <br />120 <br />Iron <br />177 mg/L <br />0.030 <br />88 <br />80 <br />120 <br />Manganese <br />-0.0187 mg/L <br />0.010 <br />Zinc <br />-0.00437 mg/L <br />0.010 <br />Lab ID: ICSAB <br />4 <br />Interference Check Sample AB <br />04/20/15 19:14 <br />Aluminum <br />458 mg/L <br />0.10 <br />92 <br />80 <br />120 <br />Iron <br />178 mg/L <br />0.030 <br />89 <br />80 <br />120 <br />Manganese <br />0.423 mg/L <br />0.010 <br />85 <br />80 <br />120 <br />Zinc <br />0.909 mg/L <br />0.010 <br />91 <br />80 <br />120 <br />Method: <br />E200.7 <br />Lab ID: <br />MB -44432 <br />4 Method Blank <br />Aluminum <br />Run: ICP4-C <br />ND mg/L <br />Iron <br />0.02 <br />ND mg/L <br />Manganese <br />ND mg/L <br />Zinc <br />ND mg/L <br />Lab ID: <br />LCS3-44432 <br />4 Laboratory Control Sample <br />Aluminum <br />2.53 mg/L <br />Iron <br />0.006 <br />2.57 mg/L <br />Manganese <br />2.48 mg/L <br />Zinc <br />0.488 mg/L <br />Lab ID: <br />C15040495-005BMS3 <br />4 Sample Matrix Spike <br />Aluminum <br />85 <br />2.51 mg/L <br />Iron <br />0.030 <br />2.53 mg/L <br />Manganese <br />115 <br />2.45 mg/L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 9 of 30 <br />Batch: 44432 <br />Run: ICP4-C <br />150420A <br />04/20/1514:12 <br />0.02 <br />0.01 <br />0.001 <br />0.006 <br />Run: ICP4-C_150420A <br />04/20/15 14:16 <br />0.030 <br />101 <br />85 <br />115 <br />0.030 <br />103 <br />85 <br />115 <br />0.0012 <br />99 <br />85 <br />115 <br />0.010 <br />98 <br />85 <br />115 <br />Run: ICP4-C_150420A <br />04/20/15 15:12 <br />0.030 <br />101 <br />70 <br />130 <br />0.030 <br />100 <br />70 <br />130 <br />0.0012 <br />98 <br />70 <br />130 <br />ND - Not detected at the reporting limit. <br />Page 9 of 30 <br />