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<br />' may be added or deleted from this mix to fit site specific-needs and objectives. Species <br />availability and economics will also influence seed mixture composition. <br />' Interim revegetation may be established on areas that require plant cover for extended periods <br />of time, but will require redisturbance and reseeding during the final reclamation process. An <br />example of a typical interim revegetation seed mixture is contained is Table 6. This seed <br />mixture will be used to establish vegetation on passive soil stockpiles, water control and <br />treatrnent structures, road cuts and fills and outer areas where surface stability and interim <br />wildlife habitat capabilities are important factors. Providing vegetation cover and forage for <br />' wildlife species on interim reclamation areas is an important mitigative measure that can be <br />accomplished through the establishment of species selected for this purpose. Species may be <br />added or deleted from this mix to fit site-specific stabilization and wildlife needs and objectives. <br />' Species availability and economics will also influence seed mixture composition. <br />In considering species for permanent revegetation seed mixtures postmining land use <br />requirements play a larger role in determining the number and selecting the types of species to <br />' be used. livestock grazing favors the inclusion of highly productive, rhizomatous grass <br />species, while general wildlife needs where community structure and diversity of food <br />resources are the primary goals are normally better met through the selection of a variety of less <br />' aggressive grasses, forts and woody plant species. When a specific vegetation community is <br />to be established, its proposed floristic composition will drive the species selection process. <br />Establishment of certain species may also require special planting techniques or methods, with <br />the interseeding of woody species being most commonly used. <br />When permanent revegetation focuses primarily on reestablishing wildlife habitat as the <br />postmining land use, maximising the species contributions of native grasses, forts and woody <br />' plant species in the revegetation community will drive seed mix formulation and planting rates. <br />Providing vegetation cover and forage for wildlife species within permanent reclamation areas <br />can be accomplished through the establishment of species specifically selected for this purpose. <br />' In addition to stabilization characteristics, the revegetation species list and the permanent seed <br />mixtures proposed in this document include plant species capable of providing cover and food <br />for wildlife species. The operational latitude has been provided in The Plan to add or delete <br />plant species from seed mixtures to fit site-specific stabilization and wildlife needs and <br />' objectives. <br />It is anticipated that several permanent seed mixtures adjusted to ffie soil mediums in which <br />' they are to be planted will be used in reclaiming disturbances associated wiW the Yankee Gulch <br />Project. Examples of potential seed mizttrres formulated for specific topdressings, site-specific <br />environmental conditions and postrnining land uses have been developed and are as follows: <br />Permanent Revegetation Seed Mixture-Foothills Swale (Table 7), Permanent Revegetation <br />Seed Mixture-Foothills Pinyon/Juniper (Table 8), Permanent Revegetation Seed Mixture- <br />Rolling Loam-Piceance (Table 9), and Permanent Revegetation Seed Mixture-Dry Exposure <br />(Table 10). The species contained in these mixtures may be substituted or their compositional <br />percentages varied based on commercial availability and site performance. The panty and <br />gemtination factors presented in the seed mixture tables are for demonstration purposes. The <br />actual purity and germination values for speck seed Tots will be used in formulating seed <br />' mixtures each year. <br />Seed labeling, quality and testing will be in accordance with the Colorado Seed Law. Certified <br />weed-free seed will be procured whenever possible. All seed used will be free of primary <br />' noxious weeds. At American Soda's discretion, seed mixture samples may be sent to the <br />Colorado Seed Laboratory at Colorado State University or other qualified facility for <br />' American Soda, LLP. S-S <br /> Soil Conservation. Plosion and Sediment <br /> Convol. reclamation and Revegeution flan <br />' l7crober 28, 1996 <br />