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r <br />Trust our People. Trust our Data. Billings, MT 800.735.4489 • Gasper, WY 888.235.0515 <br />College Station, TX 888.690.2218 • Gillette, WY 866.686.7175 • Helena, MT 877.472.0711 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />07/24/15 <br />Project: Schwartz - 7/01/15 S27770, S27772 <br />Work Order: <br />C15070102 <br />Analyte <br />Count <br />Result Units <br />RL <br />%REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: <br />E200.7 <br />Analytical Run: ICP4-C_150707B <br />Lab ID: <br />ICV <br />2 <br />Initial Calibration Verification Standard <br />07/07/15 13:22 <br />Aluminum <br />4.98 mg/L <br />0.10 <br />100 <br />95 <br />105 <br />Potassium <br />49.6 mg/L <br />1.0 <br />99 <br />95 <br />105 <br />Lab ID: <br />ICSA <br />2 <br />Interference Check Sample A <br />07/07/15 13:45 <br />Aluminum <br />479 mg/L <br />0.10 <br />96 <br />80 <br />120 <br />Potassium <br />-0.0261 mg/L <br />1.0 <br />Lab ID: <br />ICSAB <br />2 <br />Interference Check Sample AB <br />07/07/15 13:49 <br />Aluminum <br />473 mg/L <br />0.10 <br />95 <br />80 <br />120 <br />Potassium <br />-0.0128 mg/L <br />1.0 <br />Method: <br />E200.7 <br />Batch: R201333 <br />Lab ID: <br />MB -150707A <br />2 <br />Method Blank <br />Run: ICP4-C 1507078 <br />07/07/15 14:09 <br />Aluminum <br />ND mg/L <br />0.007 <br />Potassium <br />ND mg/L <br />0.04 <br />Lab ID: <br />LFB-150707A <br />2 <br />Laboratory Fortified Blank <br />Run: ICP4-C_150707B <br />07/07/15 14:13 <br />Aluminum <br />0.964 mg/L <br />0.10 <br />96 <br />85 <br />115 <br />Potassium <br />49.2 mg/L <br />1.0 <br />98 <br />85 <br />115 <br />Lab ID: <br />015070092-001AMS2 <br />2 <br />Sample Matrix Spike <br />Run: ICP4-C_150707B <br />07/07/15 16:36 <br />Aluminum <br />1.96 mg/L <br />0.030 <br />93 <br />70 <br />130 <br />Potassium <br />109 mg/L <br />1.0 <br />87 <br />70 <br />130 <br />Lab ID: <br />C15070092-001AMSD <br />2 <br />Sample Matrix Spike Duplicate <br />Run: ICP4-C_150707B <br />07/07/15 17:28 <br />Aluminum <br />2.00 mg/L <br />0.030 <br />94 <br />70 <br />130 1.7 <br />20 <br />Potassium <br />119 mg/L <br />1.0 <br />97 <br />70 <br />130 8.6 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 8 of 25 <br />