2004-07-23_REVISION - M1979205 - Laserfiche WebLink

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limits. The slope will then be laid back to the 3H:1 V slope. The slopes will be backfilled with either overburden or material excavated from the shelf wetlands. Ramps into the pits will be left as shallow 7H:1 V sloped areas. To minimize final reclamation tasks, slopes will be backfilled promptly after mining is complete. Creation of wetland shelves will be completed using dozers or excavators to remove material from the shelf area. Material will be removed to the depth of the water table and topsoil will be replaced to a thickness of 12 inches. The lateral extent of the shelf will extend from the lake edge to a 5-foot buffer from the existing wetlands. This buffer will prevent disturbance to the adjacent wetlands. Also during the excavation of the shelves existing cottonwoods and willow bunches will be left intact. See Map F-3 for shelf and fringe details. Re-Topsoiling Plan Topsoil will be replaced in all disturbed areas to a minimum depth of 12". It is expected that more than 12" of topsoil will be available due to the lake areas not needing topsoil. If this is the case additional topsoil will be placed in the disturbed areas. The topsoiling will occur to five feet below the expected water table. Revegetation Plan The site will be revegetated as follows: Dry Rangeland The following seed mix is recommended for the upland dry rangeland areas. After regrading, the reclaimed area should be tilled. The seed mix can then be broadcast and mulch applied over the seeding, The mulch will be crimped in at a rate of 1.5 tons/acre. Only certified weed free mulch will be used. Species Palome Indian Ricegrass Ephraim Crested Wheatgrass Canbar Canby Bluegrass Sodar Streambank Wheatgrass Canada Wildyre Slender Wheatgrass Fourwing Saltbush Rabbitbrush Skunkbush Sumac Total Lbs/acre Seed, PLS 6.0 3.0 1.0 3.0 2.5 2.5 0.3 0.3 0.3 18.9 7/22/04 Page E-2