2014-10-09_HYDROLOGY - M1977300 (2)

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• E www.ewgylab.com Helena,MR 677-472-0711 •Billings,MY 800-735-4489•Casper,WY 888-235-0515 - AUWWE=8b=Slow 1352 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: 07/03/14 Project: Schwartz GW 06/06/14 S27541 Work Order: C14060289 Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual Method: E200.8 Analytical Run: ICPMS2-C_140619A Lab ID: ICV 5 Initial Calibration Verification Standard 06/19/14 15:47 Arsenic 0.0506 mg/L 0.0010 101 90 110 Barium 0.0499 mg/L 0.0010 100 90 110 Manganese 0.0515 mg/L 0.0010 103 90 110 Molybdenum 0.0489 mg/L 0.0010 98 90 110 Uranium 0.0506 mg/L 0.00030 101 90 110 Method: E200.8 Batch:41624 Lab ID: MB-41624 5 Method Blank Run: ICPMS2-C_140619A 06/19/14 20:56 Arsenic ND mg/L 0.0003 Barium ND mg/L 2E-05 Manganese ND mg/L 7E-05 Molybdenum 0.0001 mg/L 8E-05 Uranium 0.001 mg/L 9E-06 Lab ID: LCS3-41624 5 Laboratory Control Sample Run: ICPMS2-C_140619A 06/19/14 20:59 Arsenic 0.458 mg/L 0.0010 92 85 115 Barium 0.482 mg/L 0.050 96 85 115 Manganese 2.36 mg/L 0.0010 95 85 115 Molybdenum 0.530 mg/L 0.0010 106 85 115 Uranium 0.519 mg/L 0.00030 104 85 115 Lab ID: C14060260-003DMS3 5 Sample Matrix Spike Run: ICPMS2-C_140619A 06/19/14 21:50 Arsenic 0.456 mg/L 0.0010 91 70 130 Barium 0.548 mg/L 0.050 96 70 130 Manganese 2.50 mg/L 0.0010 93 70 130 Molybdenum 0.527 mg/L 0.0010 105 70 130 Uranium 1.18 mg/L 0.00030 111 70 130 Lab ID: C14060260-003DMSD 5 Sample Matrix Spike Duplicate Run: ICPMS2-C_140619A 06/19/14 21:52 Arsenic 0.455 mg/L 0.0010 91 70 130 0.1 20 Barium 0.561 mg/L 0.050 98 70 130 2.3 20 Manganese 2.49 mg/L 0.0010 92 70 130 0.4 20 Molybdenum 0.538 mg/L 0.0010 107 70 130 2.1 20 Uranium 1.19 mg/L 0.00030 113 70 130 0.9 20 Qualifiers: RL-Analyte reporting limit. ND-Not detected at the reporting limit. MDC-Minimum detectable concentration Page 15 of 29