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Trust our People. Trust our Data. Billings, MT 800.735.4489 • Casper, WY 888.235.0515 <br />College Station, TX 888.690.2218 • Gillette, WY 866.686.7175 • Helena. MT 877.411.0711 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />05/20/15 <br />Project: Schwartz - GW 4/21/15 S27905, S27908 <br />Work Order: <br />C15040681 <br />Analyte <br />Count Result <br />Units <br />RL <br />%REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.7 <br />Analytical Run: ICP4-C_150423A <br />Lab ID: ICV <br />6 Initial Calibration Verification Standard <br />04/23/15 12:23 <br />Aluminum <br />4.94 <br />mg/L <br />0.10 <br />99 <br />95 <br />105 <br />Calcium <br />49.5 <br />mg/L <br />1.0 <br />99 <br />95 <br />105 <br />Iron <br />4.94 <br />mg/L <br />0.030 <br />99 <br />95 <br />105 <br />Magnesium <br />49.7 <br />mg/L <br />1.0 <br />99 <br />95 <br />105 <br />Potassium <br />48.9 <br />mg/L <br />1.0 <br />98 <br />95 <br />105 <br />Sodium <br />49.3 <br />mg/L <br />1.0 <br />99 <br />95 <br />105 <br />Lab ID: ICSA <br />6 Interference Check Sample A <br />04/23/15 12:42 <br />Aluminum <br />471 <br />mg/L <br />0.10 <br />94 <br />80 <br />120 <br />Calcium <br />455 <br />mg/L <br />1.0 <br />91 <br />80 <br />120 <br />Iron <br />175 <br />mg/L <br />0.030 <br />87 <br />80 <br />120 <br />Magnesium <br />496 <br />mg/L <br />1.0 <br />99 <br />80 <br />120 <br />Potassium <br />0.00802 <br />mg/L <br />1.0 <br />Sodium <br />0.000860 <br />mg/L <br />1.0 <br />Lab ID: ICSAB <br />6 Interference Check Sample AB <br />04/23/15 12:47 <br />Aluminum <br />476 <br />mg/L <br />0.10 <br />95 <br />80 <br />120 <br />Calcium <br />459 <br />mg/L <br />1.0 <br />92 <br />80 <br />120 <br />Iron <br />176 <br />mg/L <br />0.030 <br />88 <br />80 <br />120 <br />Magnesium <br />501 <br />mg/L <br />1.0 <br />100 <br />80 <br />120 <br />Potassium <br />-0.00401 <br />mg/L <br />1.0 <br />Sodium <br />0.0503 <br />mg/L <br />1.0 <br />Method: E200.7 <br />Batch: R198572 <br />Lab ID: MB -150423A <br />6 Method Blank <br />Run: ICP4-C 150423A <br />04/23/15 13:06 <br />Aluminum <br />ND <br />mg/L <br />0.01 <br />Calcium <br />ND <br />mg/L <br />0.01 <br />Iron <br />ND <br />mg/L <br />0.005 <br />Magnesium <br />ND <br />mg/L <br />0.01 <br />Potassium <br />ND <br />mg/L <br />0.06 <br />Sodium <br />ND <br />mg/L <br />0.2 <br />Lab ID: LFB-150423A <br />6 Laboratory Fortified Blank <br />Run: ICP4-C_150423A <br />04/23/15 13:10 <br />Aluminum <br />0.977 <br />mg/L <br />0.10 <br />98 <br />85 <br />115 <br />Calcium <br />47.2 <br />mg/L <br />1.0 <br />94 <br />85 <br />115 <br />Iron <br />0.954 <br />mg/L <br />0.030 <br />95 <br />85 <br />115 <br />Magnesium <br />46.7 <br />mg/L <br />1.0 <br />93 <br />85 <br />115 <br />Potassium <br />49.4 <br />mg/L <br />1.0 <br />99 <br />85 <br />115 <br />Sodium <br />48.0 <br />mg/L <br />1.0 <br />96 <br />85 <br />115 <br />Lab ID: C15040621-001BMS2 <br />6 Sample Matrix Spike <br />Run: ICP4-C_150423A <br />04/23/15 13:18 <br />Aluminum <br />1.96 <br />mg/L <br />0.030 <br />96 <br />70 <br />130 <br />Calcium <br />119 <br />mg/L <br />1.0 <br />93 <br />70 <br />130 <br />Iron <br />2.04 <br />mg/L <br />0.030 <br />94 <br />70 <br />130 <br />Magnesium <br />101 <br />mg/L <br />1.0 <br />94 <br />70 <br />130 <br />Potassium <br />97.7 <br />mg/L <br />1.0 <br />94 <br />70 <br />130 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - <br />Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 7 of 21 <br />