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\ & v www.ener&ab.com Helena, MT 077- 472 -0711 - Billings, W 800 - 735 -4469 • Casper, WY 888- 235 -0515 <br />Aa&WWEwa11nwSAw IM Gillette, <br />J WY 866 -686 -7175 a Rapid City, SD 886 -672 -1225 a College Station, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 06/13/13 <br />Project: Schwartz GW 5/20/13 S26987 & S26988 Work Order: C13050760 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.7 <br />ICSA <br />7 <br />Interference Check Sample A <br />Analytical Run- ICP4- C_130604A <br />Sample ID: ICV <br />7 Initial Calibration Verification Standard <br />Aluminum <br />06/04/13 13:30 <br />Aluminum <br />4.95 <br />mg /L <br />0.10 <br />99 <br />95 <br />105 <br />Calcium <br />49.7 <br />mg /L <br />0.50 <br />99 <br />95 <br />105 <br />Iron <br />5.03 <br />mg /L <br />0.030 <br />101 <br />95 <br />105 <br />Magnesium <br />49.7 <br />mg /L <br />0.50 <br />99 <br />95 <br />105 <br />Manganese <br />4.86 <br />mg /L <br />0.010 <br />97 <br />95 <br />105 <br />Potassium <br />48.7 <br />mg /L <br />0.50 <br />97 <br />95 <br />105 <br />Sodium <br />50.1 <br />mg /L <br />0.50 <br />100 <br />95 <br />105 <br />Sample ID: <br />ICSA <br />7 <br />Interference Check Sample A <br />06/04/13 13:45 <br />Aluminum <br />489 mg /L <br />0.10 <br />98 <br />80 <br />120 <br />Calcium <br />451 mg /L <br />0.50 <br />90 <br />80 <br />120 <br />Iron <br />177 mg /L <br />0.030 <br />88 <br />80 <br />120 <br />Magnesium <br />492 mg /L <br />0.50 <br />98 <br />80 <br />120 <br />Manganese <br />- 0.0180 mg /L <br />0.010 <br />Potassium <br />- 0.0238 mg /L <br />0.50 <br />Sodium <br />0.253 mg /L <br />0.50 <br />Sample ID: <br />ICSAB <br />7 <br />Interference Check Sample AB <br />06/04/13 13:49 <br />Aluminum <br />486 mg /L <br />0.10 <br />97 <br />80 <br />120 <br />Calcium <br />453 mg /L <br />0.50 <br />91 <br />80 <br />120 <br />Iron <br />175 mg /L <br />0.030 <br />87 <br />80 <br />120 <br />Magnesium <br />491 mg /L <br />0.50 <br />98 <br />80 <br />120 <br />Manganese <br />0.430 mg /L <br />0.010 <br />86 <br />80 <br />120 <br />Potassium <br />- 0.0374 mg /L <br />0.50 <br />Sodium <br />0.603 mg /L <br />0.50 <br />Method: <br />E200.7 <br />Batch: R174382 <br />Sample ID: <br />MB- 130604A <br />7 <br />Method Blank <br />Run: ICP4- C_130604A <br />06/04/13 14:08 <br />Aluminum <br />ND mg /L <br />0.009 <br />Calcium <br />ND mg /L <br />0.02 <br />Iron <br />ND mg /L <br />0.002 <br />Magnesium <br />0.07 mg /L <br />0.01 <br />Manganese <br />ND mg /L <br />0.0010 <br />Potassium <br />ND mg /L <br />0.04 <br />Sodium <br />ND mg /L <br />0.2 <br />Sample ID: <br />LFB- 130604A <br />7 <br />Laboratory Fortified Blank <br />Run: ICP4- C_130604A <br />06/04/13 14:11 <br />Aluminum <br />0.962 mg /L <br />0.10 <br />96 <br />85 <br />115 <br />Calcium <br />47.3 mg /L <br />0.50 <br />95 <br />85 <br />115 <br />Iron <br />0.965 mg /L <br />0.030 <br />96 <br />85 <br />115 <br />Magnesium <br />47.3 mg /L <br />0.50 <br />94 <br />85 <br />115 <br />Manganese <br />0.940 mg /L <br />0.010 <br />94 <br />85 <br />115 <br />Potassium <br />47.3 mg /L <br />0.50 <br />95 <br />85 <br />115 <br />Sodium <br />47.7 mg /L <br />0.50 <br />95 <br />85 <br />115 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - <br />Not detected at the reporting limit. <br />MDC - Minimum <br />detectable concentration <br />Page 9 of 24 <br />