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Doc Date:1211112001 Section 779.14(a) Continued. III Illllllllllll 111 --- -~ Rule 2.04.6 activities. Modeling techniques were adapted from the OSM handbook publication, Coal Mining and Reclamation Operations, Par 1, The Determination of Lhe Probable Hydrologic Consequences, May 1980. The specific modeling techniques used are explained in detail in Sections 779.15, 779.16 and 780.21. It should be noted that required surface and ground water information was collected to provide site-specific data and verifiable conclusions. JI~ Section 779.14 Geology Description • (a) The description shall include a general statement of the geology within the proposed mine plan area down to and including the first aquifer to be affected below the lowest coal seam to be mined. Introduction The following discussion focuses on the geology of the Kerr mine area. In the Kerr loadout area, there will be minimal disturbance of in-situ materials since the loadout facilities are constructed on fill material which will remain following reclamation. Accordingly, the discussion on the geology of the loadout area is limited to the stratigraphy of the first 25 feet below the land surface. With respect to the Kerr mine area, the geology of all areas to be disturbed by mine operations is described down to and including the stratum below the lowermost coal seam to be mined. As discussed in Section 779.15 the coal seam to be mined, known as the Sudduth Seam, is the only aquifer to be disturbed. Boreholes drilled to a depth of 120 feet below the Sudduth Seam have encountered no other aquifers. The Kerr Mine is located approximately ten (10) miles east of Malden, Colorado on County Road 12E. The Kerr loadout facilities are located on the southern edge of Walden, Colorado. The locations of both the mine and loadout facilities are shown on Figure 1, General Location. 779-10a Dnviced _ 11n..a 1