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I ALI a FM www.ener&b_com Helena, MT 877- 472 -0711 • Billings, W 608 - 735 -4469 • Casper, WY 886- 235 -6515 <br />J Gillette, WY 866 -686 -1175 • 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 />Project: Schwartz GW 5/23/2013 S26999 & S27000 <br />Analyte <br />Count Result Units <br />Method: <br />E200.7 <br />Sample ID: <br />MB- 130611A <br />Method Blank <br />Potassium <br />ND mg /L <br />Sample ID: <br />LFB- 130611A <br />Laboratory Fortified Blank <br />Potassium <br />456 mg /L <br />Sample ID: <br />C13051013- 002BMS2 <br />Sample Matrix Spike <br />Potassium <br />276 mg /L <br />Sample ID: <br />C13051013- 002BMSD2 <br />Sample Matrix Spike Duplicate <br />Potassium <br />278 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 06/19/13 <br />Work Order: C13050906 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: R174676 <br />Run: ICP4 -C 130611A 06/11/1312:47 <br />0.04 <br />Run: ICP4- C_130611 A 06/11/13 12:50 <br />0.50 91 85 115 <br />Run ICP4- C_130611A 06/11/1317:33 <br />1.0 97 70 130 <br />Run: ICP4- C_130611 A 06/11/13 17:36 <br />1.0 97 70 130 0.6 20 <br />ND - Not detected at the reporting limit. <br />Page 11 of 24 <br />