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thistle, Tumble mustard, and Halogeton on topsoil stockpiles and land laying fallow prior to fall <br />seeding. Applications of Plateau or other similar herbicides have proven effective at controlling <br />cheatgrass while showing limited effects on other vegetation. Plateau could be used to reduce <br />the cheatgrass seedbank in topsoil stockpiles or for seedling establishment on final reclamation <br />as conditions warrant. Herbicides are only to be applied in an approved manner specified on <br />their label. <br />h. In soils which have an overwhelming propensity to support cheatgrass, such as on Refuse Pit <br />1, long term control of cheatgrass may require a monoculture of one of the highly competitive <br />wheatgrasses. Establishment of such competitive stand may even require use of herbicides <br />to minimize competition from cheatgrass. <br />V.1.3 Phases and Timing The revegetation of disturbed areas is dependent on the completion of <br />activities for a given area. Table V-7 shows activities during and after mine construction and the anticipated <br />revegetation schedule for the same. Site specific plans are to be implemented as soon as practicable <br />following the completion of a given activity. Implementation is dependent upon the season for most <br />favorable revegetation operations. This usually corresponded with a dormant fall seeding. Temporary <br />erosion control measures, such as surface roughening, imprinting, placement of erosion control netting <br />(e.g., excelsior blanket), and sowing with nurse crops or stubble mulch are used prior to seeding of steep <br />slopes when loss of surface materials due to wind and water erosion could occur. Leaving the site fallow <br />has the advantage of accumulating moisture for future seedling establishment if the site is to be sown the <br />• next fall. Disturbed areas revegetated during final reclamation are listed in Table V-6. <br />Roadsides, cutbanks, areas adjoining operating support facilities and areas adjoining sediment ponds were <br />revegetated even though additional disturbance will occur on many of these sites during the life of the mine <br />operations. Revegetation of the waste disposal area will be conducted sequentially as the disposal area is <br />developed. See Table V-7. Topsoil stockpiles are recontoured and planted during the fall following their <br />construction. During construction, all planting operations, including seedbed preparation, are detailed on <br />standard forms and supervised by a qualified reclamation specialist (Table V-8). <br /> <br />TR65 (6/2007) V-32 <br />