1987-12-01_PERMIT FILE - C1981017 (286)

Home Browse Search

Chapter V The reclamation objective is to eliminate the sharp crest of the fill and improve surface drainage to minimize erosion and sloughing and prevent surface water from -� entering the fill. This involves rounding the contour of the fill crest and constructing diversion ditches above the crest of the fill. TYPE (6): SEVERE EROSION AREA Erosion is common in Coal Basin. The reclamation objective is to prevent or reduce erosion problems, and the method is to improve surface drainage with rip rap and in some cases, where feasible, to change natural channels. c. Final Contours. i A formal request for a variance from approximate original contour (AOC) based on steep slope mining conditions was submitted on Aug. 3, 1981. It was supported by the surface manager of the area, the District Ranger of the Sopris Ranger District of the White River National Forest. See App. V-E-1 for details of the request and the Forest Service letter of support. Exhibits V-E-1 (a through e), V-E-2 and VI-D-1 (a through d) illustrate Coal Basin topography and postmining contours. Exhibits V-E-1 (a through e) are mine portal cross-sections. Exhibit V-E-2 shows Coal Basin topography. Exhibits VI-D-1 (a `r through d) are maps which indicate the topography of the postmining Coal Basin and are titled Postmining Land Use Facilities. 2. Topsoil Handling Procedures. a. Methods of Stripping. Topsoil will be salvaged from any area that is to be disturbed using scrapers or dozers. The salvage operations will be under the supervision of the environmental coordinator to ensure: — vegetation is cleared prior to topsoil salvaging — topsoil is removed to reocmmended depths (6"to 14" average soil depth in Coal Basin) (See soils resource information, Section G, Chaper III) — topsoil is not contaminated with other materials i.e. rocks, stumps, etc. — topsoil is hauled and stored in areas using techniques approved by CMLRD. i 32