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wwmenerdab.com Helena, MT $77- 472 -0711 • Billings, MT 600 - 735-0118$ • Casper, WY 888- 235 -0515 <br />Au" 1C1 A-1.02 Gillette, WY 866 - 686 -7175 • Rapid City, SO 888 -672 -1225 * College Station, TX 888 -660 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />10/02/13 <br />Project: Schwartz SW 9/5/13 S27130 <br />Work Order: <br />013090203 <br />Analyte Count Result Units <br />RL <br />%REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.7 <br />Batch: R178496 <br />Sample ID: C13090186- 002BMSD <br />5 <br />Sample Matrix Spike Duplicate <br />Run: ICP4- C_130918A <br />09/18/13 17:40 <br />Method: E200.7 <br />Analytical Run: ICP4- C_130923A <br />Sample ID: ICV <br />2 <br />Initial Calibration Verification Standard <br />09/23/13 14.14 <br />Aluminum <br />4.89 mg /L <br />0.10 <br />98 <br />95 <br />105 <br />Manganese <br />4.78 mg /L <br />0.010 <br />96 <br />95 <br />105 <br />Sample ID: ICSA <br />2 <br />Interference Check Sample A <br />09/23/13 14:29 <br />Aluminum <br />464 mg /L <br />0.10 <br />93 <br />80 <br />120 <br />Manganese <br />- 0.0146 mg /L <br />0.010 <br />Sample ID: ICSAB <br />2 <br />Interference Check Sample AB <br />09/23/13 14:33 <br />Aluminum <br />468 mg /L <br />0.10 <br />94 <br />80 <br />120 <br />Manganese <br />0.419 mg /L <br />0.010 <br />84 <br />80 <br />120 <br />Method: E200.7 <br />Batch R178677 <br />Sample ID: MB- 130923A <br />2 <br />Method Blank <br />Run: ICP4- C_130923A <br />09/23/13 14:51 <br />Aluminum <br />ND mg /L <br />0.009 <br />Manganese <br />ND mg /L <br />0.0010 <br />Sample ID: LFB- 130923A <br />2 <br />Laboratory Fortified Blank <br />Run: ICP4- C_130923A <br />09/23/13 14:55 <br />Aluminum <br />0.947 mg /L <br />0.10 <br />95 <br />85 <br />115 <br />Manganese <br />0.923 mg /L <br />0.010 <br />92 <br />85 <br />115 <br />Sample ID: C13080630- 004CMS2 <br />2 <br />Sample Matrix Spike <br />Run: ICP4- C_130923A <br />09/23/13 17:38 <br />Aluminum <br />1.99 mg /L <br />0.030 <br />98 <br />70 <br />130 <br />Manganese <br />1.97 mg /L <br />0.0020 <br />94 <br />70 <br />130 <br />Sample ID: C13080630- 004CMSD <br />2 <br />Sample Matrix Spike Duplicate <br />Run: ICP4- C_130923A <br />09/23/13 17:42 <br />Aluminum <br />1.99 mg /L <br />0.030 <br />98 <br />70 <br />130 0.2 <br />20 <br />Manganese <br />1.97 mg /L <br />0.0020 <br />94 <br />70 <br />130 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 12 of 25 <br />