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Ms. Katie Fende! November 11, 2005 Leonard Rice Engineers Page ,? CDMG Reclamation Requirements The following four rules listed by the Colorado Division of Mining and Geology (CDMG) are referenced: _ ., ,_,_, _ „_ ,_~_ _ __ .._ ..~._ -. _ _ • Timing: "All reclamation shall be carried to completion by the Operator with all reasonable diligence, and each phase of reclamation shall be completed within five (5) years from the date the Operator informs the Board of Office that such phase has commenced, unless extended by the Board of Office. The 5-year period may be applied separately to each phase as it is commenced throughout the life ofthe mine." Rule 3.1.3. • Vegetation Cover: "In those areas where revegetation is part of the Reclamation Plan, land shall be revegetated in such a way as to establish a diverse, effective, and long-lasting vegetation cover that is capable of self- ,regeneration without continued dependence on irrigation, soil amendments or fertilizer, and is at least equal in extent of cover to the natural vegetation of the surrounding area." Rule 3.1.10(1). • "The revegetation plan shall provide for the greatest probability of success in plant establishment and vegetation development by considering environmental factors such as seasonal patterns of precipitation, temperature and wind, soil texture and fertility; slope stability; and direction of slope faces. Similar attention shall be given to biological factors such as proper inoculation of legume seed, appropriate seeding and transplanting practices, care of forest planting stock and restriction of grazing during initial establishment." Rule 3.1.10(4). • "To insure the establishment of a diverse and long-lasting vegetative cover, the Operator shall employ appropriate techniques of site preparation and protection such as mechanical soil conditioning by discing and ripping; mulching; soil amendments and fertilizers; and irrigation." Rule 3.1.10(5). Recommended Reclamation Conditions • Replace trees and shrubs impacted by mining.at a minimum 1:1 ratio with native species to emulate or improve on the wildlife habitat at the site and to insure a diverse and long-lasting vegetative cover. • To provide for the greatest probability of success in plant establishment, the following requirements are recommended: o Irrigate all trees and shrubs for a period of 2 to 3 years, or until self- sustaining. o Inoculate Mountain mahogany and other shrubs with appropriate mycorrhiza to encourage growth o Place topsoil from two to eight inches deep, with an average of 4 inches. o Rip all areas compacted during mining. o Create natural contours, rather than a series of benches and cliffs. Consultants in Natural Resources and the Environment