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~ • SMUGOLER MINE SITE S a EXHIBIT D In reclaiming to Wildlife Habitat, all disturbed areas associated with the mine site will be physically stabilized. The roads, all contributing mine site improvements and the principal mine waste piles will not be revegetated.s A11 other disturbed areas will be revegetated. Other than the roads, these have been designated Historic Places within the definitions of federal and state statutes. Reclamation to Wildlife Habitat will entail the establishment ofa stabilizing herbaceous (grass and forb) stand throughout the site, for wildlife forage. Shrubs also will be planted in low densities throughout the site. Trees will not be planted because the site is mountain shrubland habitat. As required by the Colorado Mined Land Reclamation Act, the vegetation will achieve a cover equal to or greater than that of the surrounding area. Grasses, and a properly inoculated nitrogen fixing legume, provide the foundation for accelerating the natural process of recovery, i. e., reclamation. Specific species to be planted are discussed in Section D-4.3, Revegetation. D-4.1 Erosion Control and Structure Removal Erosion control of mine dumps is addressed in EPA-approved Work Plan ~ Mine portals will be secured in accordance with applicable mine safety regulations. Structures with no useful future or historic function will be removed from the site. D-4.2 Growth Medium All of the area disturbed at the Smuggler Mine was disturbed years ago at a time when no soil was salvaged. The value of saving soil to aid reclamation was not recognized until recent years. Indeed, reclamation was not even recognized as advantageous until relatively recently - long afrer the disturbance had occurred at the Smuggler Mine. Most areas can be revegetated with or without soil. Most barren, sterile, mine waste rock can be revegetated by amending with fertilizer, sewage or manure, etc., and by providing relatively intensive maintenance. Although not present at the Smuggler Mine, bare acid tailings can be revegetated by liming, fertilizing, protecting from the wind, protecting against erosion, amending, and relatively intensive maintenance. The principal ingredient that makes the most difference in the quality of vegetation produced by a revegetation effort is soil. Generally, any soil will provide two or three times the quality of s Pursuant to the requirements of the EPA ENGINEERING EVALUATION/Cost ANALYSIS (EE/CA) FOR NON-TIME CRITICAL REMOVAL ACTION ON OPERABLE UNIT 2 OF THE SMUGGLER MOUNTAIN NPL SITE (U.S. EPA, Region VII[, Jan. 25, 1995), which is Attachment 4 to the EPA ACTION MEMORANDUM, dated April l9, 1995, which Is Exhibi[-1 t0 the EPA ADMIMSTRATIVE ORDER ON CONSENT FOR REMOVAL ACTION pp. 14, 19, dated May 8, 1995, entered in EPA Docket No. CERCLA V[II-95-07. The EPA-approved WORK PLAN is Xhll)It-3 [O the ADMINISTRATIVE ORDER ON CONSENT FOR REMOVAL ACTION (AOC), id. - 2S - SMUGGLER MINE SITE