2011-02-04_HYDROLOGY - M1977300 (2)

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J "w.energylab.com {F Helena, MT 877-472-0711 • Billings, tAT 800-735-4489 -Casper, WY $08-235-0515 .. / AealyHcalF=0ancvSlons 1952 Gillette, WY 866-686-7175 • Rapid City, SO 888-672-1225 -College Station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Cotter Corporation Project: Schwartzwalder Water Sampling Program-Ground Water Analyze Count Result Units RL %REC Low Limit Report Date: 01/21/11 Work Order: C10120819 High Limit RPD RPDLimit Qual Method: E200.8 Balch: R141596 Sample ID: LRB 7 Method Blank Run: ICPMS2-C_110107A 01/07/11 10:30 Arsenic NO mg/L 6E-05 Copper NO mg/L 7E-05 Lead NO mg/L 3E-05 Molybdenum 0.0001 mg/L 5E-05 Thallium NO mg/L 1 E-05 Uranium NO mg/L 1 E-05 Zinc 0.0003 mg/L 0.0003 Sample ID: LFB 7 Laboratory Fortilied Blank Run: ICPMS2-C_110107A 01/07/11 10:43 Arsenic 0.0459 mg/L 0.0010 92 85 115 Copper 0.0452 mg/L 0.0010 90 85 115 Lead 0.0474 mg/L 0.0010 95 85 115 Molybdenum 0.0532 mg/L 0.0010 106 85 115 Thallium 0.0461 mg/L 0.0010 92 85 115 Uranium 0.0449 mg/L 0.00030 90 85 115 Zinc 0.0443 rng/L 0.0010 88 85 115 Sample ID: C1 01 2081 9-OOlDMS 7 Sample Matrix Spike Run: ICPMS2-C_110107A 01/07/11 14:14 Arsenic 0.0580 mg/L 0.0010 116 70 130 Copper 0.0602 mg/L 0.010 117 70 130 Lead 0.0599 mg/L 0.050 120 70 130 Molybdenum 0.0615 mg/L 0.10 118 70 130 Silver 0.0220 mg/L 0.010 110 70 130 Thallium 0.0603 mg/L 0.10 120 70 130 Uranium 0.0770 mg/L 0.00030 122 70 130 Sample ID: C1 0120819-001 DMSD 7 Sample Matrix Spike Duplicate Run: ICPM32-C_110107A 01/07/11 14:21 Arsenic 0.0581 mg/L 0.0010 116 70 130 0.1 20 Copper 0.0604 mg/L 0.010 118 70 130 0.2 20 Lead 0.0595 mg/L 0.050 119 70 130 0.7 20 Molybdenum 0.0620 mg/L 0.10 119 70 130 20 Silver 0.0223 mg/L 0.010 112 70 130 1.2 20 Thallium 0.0596 mg/L 0.10 119 70 130 20 Uranium 0.0764 mg/L 0.00030 121 70 130 0.8 20 Qualifiers: RL - Analyze reporting limit. MDC - Minimum detectable concentration ND - Not detected at the reporting limit. Page 11 of 25