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5.4 Revegetation <br />Revegetation will occur concurrently with the mining process as is practical. Care will be <br />taken to regrade and provide reclaimed slopes such that revegetation regrowth may occur to <br />help comply with state and erosion standards. Seeding and grassing activities will take place <br />immediately upon completion of reclaimed slopes (season permitting) whenever practical <br />size areas become available and free from mining activity. Areas not planned for revegetation <br />include the area below NHWL in Phases/ ponds 1, 3, and 4 as they will become below -grade <br />ponds. Based on SCS guidance for other local projects having similar surficial soils, the <br />following revegetation procedures are anticipated: <br />Grass seed will typically be planted in unfrozen soil between October 1 and April 30 <br />Grass seed will typically be planted with a grass drill, or where necessary, with a <br />broadcast seeder <br />The proposed seed mix and application rates in pounds of pure live seed per acre are <br />described on the following pages <br />Weed control practices will be implanted as required. <br />The above procedures may be modified as conditions dictate. Plant species anticipated to <br />establish themselves naturally along the shorelines include cattails, willows, cottonwoods, <br />and bulrushes. Proposed seed mixtures to be used on site where appropriate are listed below. <br />Availability may dictate the need for substitution. The anticipated seed mix to be used for <br />Three Bells Mine revegetation is shown in Table 2. A revegetation cost estimate was <br />provided by the DRMS and is available in Attachment F <br />Table 2: Seed Mix for Three <br />Bells Mine <br />Species <br />Preferred Varieties <br />Rate Lbs. /Acre <br />PLS Seeded /Acre <br />Planted (Drilled 1) <br />Green needlegrass <br />Stipa viridula <br />Lodorm <br />2.00 362,000 <br />Indian ricegrass <br />Achnatherum hymenoides <br />Paloma <br />2.00 376,000 <br />Slender wheatgrass <br />Elymus trachycaulus <br />Primar, Revenue <br />2.00 <br />320,000 <br />Thickspike wheatgrass <br />Elymus lanceolatus <br />Critana <br />2.00 <br />372,000 <br />Western wheatgrass <br />Pascopyrum smithii <br />Arriba, Barton <br />5.00 <br />630,000 <br />Lewis flax <br />285,000 <br />Linum lewisii <br />Appar <br />1.00 <br />Upright prairie coneflower <br />Ratibida columnifera None 0.25 225,000 <br />IGEI Consultants, Inc. <br />18 dune - January 20145 <br />Three Bells Mine Reclamation Permit Amendment <br />