2012-06-20_PERMIT FILE - C2010089 (87)

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associations or communities based upon two or more dominant species accompanied by narrative describing species, successional stage, capabi- litiee of land, growth rates or productivity, and currant uses of vege- tation (used for grazing, wildlife, crops). IVB. Vegetation lnventory map of Areas Designated as Alluvial Valley Floors, nrale 1:4R00 showing plant varieties and cotnnunicles accompanied by a narrative which'includea: a complete Hating of species, percent canopy coverage for each apeciea, bare ground and litter, number of trees per acre for each species; a measure of production (production above ground at peak of growing season for (1) perennial, and (2) desirable annual species, animal unite months (AUMS) the type is supporting, gro over density and the potential AUMS under beneficial management epre- eentative cross - sections tranaecting the alluvial val show- ing communities encountered at selected location, ogr by of the alluvial valley floor area. The vegetation • , a. co elated with the soils survey and hydrologic investigatio ed rela- tionehipe shall be explained. The inventory will ish the character- istic root systems of vegetation located within th alluvial valley floor area and will relate the root system as well as other growth factors to the relative productivity of hay, forage, and other species providing pro- duction to domesticated and wild animals. The condition and trend of species will be identified and analyzed to determine reasons far trends. IVC. Current Use of Lands Within Alluvial Valley Floor Areas will be presented on 1:4800 scale map with the use categories including, but not limited to managed grazing, hay cutting, wildlife habitat, crop land, irrigated land, unimproved rangeland and marsh habitat. An accompanying narrative will quantitatively assess the economic importance of each land use to the affected area and to the county area(s) involved. Land uses over the previous ten years will be identified and assessed. The importance of subirrigation will be assessed and production changes ae a result of changes in the ground and /or surface water system and the soil moisture content will be determined. V. Biologic Information (Wildlife) VA. Wildlife Inventory Map of Affected area showing habitat for major wildlife and ecologically important species, scale 1:24,000. Accompanied by a list- ing of wildlife species utilizing the area, seasons of use and degrees of dependence, including fawning or calving areas, nesting areas, strutting and dancing grounds, areas of critical cover, watering or feeding, and principal migration routes. Areas of critical winter habitat will be carefully identified, both as to their location and conditions making them critical. VI. Projected "Operational" Information VIA. I1.Lustrated narrative of mining and reclamation procedures describing disposition of spoiled overburden, method of placement of overburden, sequence of placement of overburden to distinguish between differing lithologies, methods of compaction, soil replacement methods and source of soil, soil amendments proposed, revegetation methods proposed, post- -mining maintenance and monitoring scheduled, and detailed experiences giving confidence of success for proposed reclamation procedures includ- ing pertinent measurements of post - mining conditions. This information shall be in sufficient detail to satisfy the regulatory authority that the critical functions of alluvial valley floors will be adequately restored. VIB. Estimates of character and quality of spoiled overburden as porous materials in terms of porosity, storage coefficients, permeability, chemical stability (leaching, ion exchange capacity) and nutrient con- tent (for vegetation) for a period of ten years after mining and