2014-10-23_HYDROLOGY - M1977300 (3)

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www.erwgylab.com Helena,MT 877-472-0711 +Billings,MIT 600-735-4480•Casper,WY 888-235-0515 A w bsl)"fj Sines 1932 Gillette,WY 866-686 7175•Rapid City,SD 886-672-1225•College Station,TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Cotter Corporation Report Date: 08/21/14 Project: Schwartz-GW 7/31/14 S27613 Work Order: C14080021 Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual Method: E200.7 Analytical Run: ICP4-C_140806A Lab ID: ICV 9 Initial Calibration Verification Standard 08/06/14 13:08 Aluminum 4.89 mg/L 0.10 98 95 105 Calcium 49.5 mg/L 0.50 99 95 105 Iron 4.96 mg/L 0.030 99 95 105 Magnesium 49.5 mg/L 0.50 99 95 105 Molybdenum 0.958 mg/L 0.10 96 95 105 Potassium 47.9 mg/L 0.50 96 95 105 Sodium 48.8 mg/L 0.50 98 95 105 Uranium 4.85 mg/L 1.0 97 95 105 Zinc 0.964 mg/L 0.010 96 95 105 Lab ID: ICSA 9 Interference Check Sample A 08/06/14 13:22 Aluminum 473 mg/L 0.10 95 80 120 Calcium 461 mg/L 0.50 92 80 120 Iron 179 mg/L 0.030 89 80 120 Magnesium 498 mg/L 0.50 100 80 120 Molybdenum 0.000180 mg/L 0.10 Potassium 0.0128 mg/L 0.50 Sodium 0.0481 mg/L 0.50 Uranium 0.405 mg/L 1.0 Zinc -0.00351 mg/L 0.010 Lab ID: ICSAB 9 Interference Check Sample AB 08/06/14 13:26 Aluminum 477 mg/L 0.10 95 80 120 Calcium 462 mg/L 0.50 92 80 120 Iron 179 mg/L 0.030 90 80 120 Magnesium 501 mg/L 0.50 100 80 120 Molybdenum 0.00136 mg/L 0.10 Potassium -0.000330 mg/L 0.50 Sodium 0.105 mg/L 0.50 Uranium 0.394 mg/L 1.0 Zinc 0.922 mg/L 0.010 92 80 120 Method: E200.7 Batch: R189559 Lab ID: MB-140806A 9 Method Blank Run: ICP4-C 140806A 08/06/14 13:45 Aluminum ND mg/L 0.01 Calcium ND mg/L 0.01 Iron ND mg/L 0.005 Magnesium ND mg/L 0.01 Molybdenum ND mg/L 0.007 Potassium ND mg/L 0.06 Sodium 0.02 mg/L 0.01 Uranium ND mg/L 0.1 Zinc ND mg/L 0.003 Qualifiers: RL-Analyte reporting limit. ND-Not detected at the reporting limit. MDC-Minimum detectable concentration Page 7 of 20