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" www.erwgylab.rom r Helena, MT 877 - 472 -0711 • Billings, MT 800- 735 -4489 a Casper, WY 888 -235 -0515 <br />f <br />AmWM Ewakim Rm 1032 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 Report Date: 07/30/13 <br />Project: Schwartz -GW 7/3/13 S27057 Work Order: C13070189 <br />Analyte Count Result <br />Units <br />RL <br />° /diEC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.7 <br />Batch: R176062 <br />Sample ID: LFB- 130718A <br />9 Laboratory Fortified <br />Blank <br />Run: ICP4- C_130718A <br />07/18/13 12:50 <br />Aluminum <br />0.974 <br />mg /L <br />0.10 <br />96 <br />85 <br />115 <br />Calcium <br />48.7 <br />mg /L <br />0.50 <br />97 <br />85 <br />115 <br />Iron <br />0.974 <br />mg /L <br />0.030 <br />97 <br />85 <br />115 <br />Magnesium <br />48.8 <br />mg /L <br />0.50 <br />98 <br />85 <br />115 <br />Manganese <br />0 950 <br />mg /L <br />0.010 <br />95 <br />85 <br />115 <br />Molybdenum <br />0.983 <br />mg /L <br />0.10 <br />98 <br />85 <br />115 <br />Potassium <br />48.7 <br />mg /L <br />0.50 <br />97 <br />85 <br />115 <br />Sodium <br />49.1 <br />mg /L <br />0.50 <br />98 <br />85 <br />115 <br />Zinc <br />0.930 <br />mg /L <br />0.010 <br />93 <br />85 <br />115 <br />Sample ID: 013070367- 002CMS2 <br />9 Sample Matrix <br />Spike <br />Run: ICP4- C_130718A <br />07/18/13 17:41 <br />Aluminum <br />1.98 <br />mg /L <br />0.030 <br />94 <br />70 <br />130 <br />Calcium <br />472 <br />mg /L <br />1.0 <br />74 <br />70 <br />130 <br />Iron <br />2.21 <br />mg /L <br />0.030 <br />93 <br />70 <br />130 <br />Magnesium <br />159 <br />mg /L <br />1.0 <br />95 <br />70 <br />130 <br />Manganese <br />2.08 <br />mg /L <br />0.0020 <br />90 <br />70 <br />130 <br />Molybdenum <br />1.91 <br />mg /L <br />0.0059 <br />93 <br />70 <br />130 <br />Potassium <br />102 <br />mg /L <br />1.0 <br />94 <br />70 <br />130 <br />Sodium <br />203 <br />mg /L <br />1.0 <br />92 <br />70 <br />130 <br />Zinc <br />1.80 <br />mg /L <br />0.010 <br />87 <br />70 <br />130 <br />Sample ID: 013070367- 002CMSD2 <br />9 Sample Matrix <br />Spike Duplicate <br />Run: ICP4- C_130718A <br />07/18/13 18:25 <br />Aluminum <br />2.13 <br />mg /L <br />0.030 <br />101 <br />70 <br />130 7.0 <br />20 <br />Calcium <br />489 <br />mg /L <br />1.0 <br />90 <br />70 <br />130 3.4 <br />20 <br />Iron <br />2.27 <br />mg /L <br />0.030 <br />96 <br />70 <br />130 2.6 <br />20 <br />Magnesium <br />161 <br />mg /L <br />1.0 <br />97 <br />70 <br />130 1.5 <br />20 <br />Manganese <br />2.15 <br />mg /L <br />0.0020 <br />94 <br />70 <br />130 3.6 <br />20 <br />Molybdenum <br />1.98 <br />mg /L <br />0.0059 <br />97 <br />70 <br />130 3.8 <br />20 <br />Potassium <br />117 <br />mg /L <br />1.0 <br />109 <br />70 <br />130 14 <br />20 <br />Sodium <br />216 <br />mg /L <br />1.0 <br />105 <br />70 <br />130 6.3 <br />20 <br />Zinc <br />1.82 <br />mg /L <br />0.010 <br />88 <br />70 <br />130 1.2 <br />20 <br />Clualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 8 of 20 <br />