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• E www.ewitylab.com Helena, MT 877- 472 -0711 • Billings, MT 600- 735 -4489 • Casper, WY 888- 235 -0515 <br />Sh' ym Gillette, WY 866 -686 -7175 • 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 -SW 9/4/14 S27661 <br />Analyte Count Result <br />Units <br />Method: E200.7 <br />Report <br />Lab ID: LFB- 140910A <br />8 Laboratory Fortified <br />Blank <br />Manganese <br />0.908 <br />mg /L <br />Molybdenum <br />0.923 <br />mg /L <br />Potassium <br />50.6 <br />mg /L <br />Sodium <br />48.7 <br />mg /L <br />Lab ID: C14090226- 001CMS2 <br />8 Sample Matrix <br />Spike <br />Aluminum <br />1.94 <br />mg /L <br />Calcium <br />155 <br />mg /L <br />Iron <br />1.92 <br />mg /L <br />Magnesium <br />118 <br />mg /L <br />Manganese <br />1.94 <br />mg /L <br />Molybdenum <br />1.90 <br />mg /L <br />Potassium <br />99.9 <br />mg /L <br />Sodium <br />121 <br />mg /L <br />Lab ID: C14090226- 001CMSD <br />8 Sample Matrix <br />Spike Duplicate <br />Aluminum <br />1.90 <br />mg /L <br />Calcium <br />153 <br />mg /L <br />Iron <br />1.91 <br />mg /L <br />Magnesium <br />116 <br />mg /L <br />Manganese <br />1.95 <br />mg /L <br />Molybdenum <br />1.90 <br />mg /L <br />Potassium <br />99.7 <br />mg /L <br />Sodium <br />120 <br />mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 11 of 26 <br />Report <br />Date: <br />09/30/14 <br />Work Order: <br />C14090226 <br />RL <br />%REC <br />Low <br />Limit <br />High Limit <br />RPD <br />RPDLimit Qual <br />Batch: R190960 <br />Run: <br />ICP4- C_140910A <br />09/10/14 14:55 <br />0.010 <br />91 <br />85 <br />115 <br />0.10 <br />92 <br />85 <br />115 <br />0.50 <br />101 <br />85 <br />115 <br />0.50 <br />97 <br />85 <br />115 <br />Run: <br />ICP4- C_140910A <br />09/10/14 17:01 <br />0.030 <br />95 <br />70 <br />130 <br />1.0 <br />93 <br />70 <br />130 <br />0.030 <br />94 <br />70 <br />130 <br />1.0 <br />95 <br />70 <br />130 <br />0.0031 <br />90 <br />70 <br />130 <br />0.015 <br />92 <br />70 <br />130 <br />1.0 <br />94 <br />70 <br />130 <br />1.0 <br />93 <br />70 <br />130 <br />Run: <br />ICP4- C_140910A <br />09/10/14 17:41 <br />0.030 <br />93 <br />70 <br />130 <br />2.1 <br />20 <br />1.0 <br />92 <br />70 <br />130 <br />1.0 <br />20 <br />0.030 <br />93 <br />70 <br />130 <br />0.9 <br />20 <br />1.0 <br />93 <br />70 <br />130 <br />1.5 <br />20 <br />0.0031 <br />91 <br />70 <br />130 <br />0.7 <br />20 <br />0.015 <br />92 <br />70 <br />130 <br />0.0 <br />20 <br />1.0 <br />94 <br />70 <br />130 <br />0.2 <br />20 <br />1.0 <br />92 <br />70 <br />130 <br />0.8 <br />20 <br />ND - Not detected at the reporting limit. <br />Page 11 of 26 <br />