2008-03-03_PERMIT FILE - C2006085 (2)

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• • data for the samples is provided in Exhibit AG. Following is a list of the core holes, ~~ampling intervals, type of sample (roof or floor), composite lii:hology, and sample I.D. numbers. HOLE NO. SAMPLE LD. ROOF/ FLOOR INTERVAL (depth) LITHOLOGY NF-01 NF-OIB-RG Roof 815'-825' Sandstone, siltstone, shaley coal NF-01 NF-0IB-FG Floor 829'-834' Sandstone, siltstone NF-02 NF-02C-RG Roof 315'-325' Sandstone, coal NF-02 NF-02C-FG Floor 329.7'-334.7' Mudstone NF-03 NF-03B-RG Roof 757.5'-767.5' siltstone, sandstone NF-03 NF-036-FG Floor 772.5'-777.5' siltstone, sandstone Coal AnalysE~s Coal analysis of samples from NF-02 and NF-03 are provided in Exhibit 0. Analysis NF-02 NF-03 Moisture 9.05 6.82 Ash 15.22 16.28 BTU/Ib 13,909 13,933 Sulfur 0.41 1.12 • 2.04.7 Hydrologv Description This section provides information and a description of groundwater and surtace water hydrology for the proposed Northfield Mine permit area and adjacent areas. A substantial quantity of existing hydrologic and geologic data was available to compile this permit section and the Bishop-Brogiden Hydrology Report in Exhibit K. Northfield collected baseline waiter quality and quantity data (Exhibit L) as required-.for twelve consecutive months to provide information on the seasonal variability o1F surface and groundwater resources. Groundwater Information The information presented for groundwater resources in the proposed permit area and adjacent areas has been obtained from exploration drilling, ongoing monitoring activities, and a review of available geologic, records of groundwater use, and available information on abandoned underground mines in the area. Northfield submitted a 2.04-15 Revised 8/20/07