ENFORCE30010 - Laserfiche WebLink

Home Browse Search

ACZ ACZ Inc. Engineering and Environmental Services 1475 Pine Grove Road, Suite 109 P.O. Boz 774018 Steamboat Springs, Colorado 80477 303-879-6260 August 9, 1993 Ill Illlllllllllllll ~^ AUG 11 1993 Divisionpof Miner is and Geology Divicien o, n,~i~ic ,7 ` ~ Uyc "y` 1313 Sherman Street, Room 215 Denver, Colorado 80203 Re: Energy Fuels Mining Company - Raton Creek Mine (Per.~r:it C-82-055), NOV C-93-087 Dear Mr Dudash: The Division of Minerals and Geology (DMG) issued a Notice of Violation (NOV) for the areas designated as Santa Fe Loadouts 1 and 2 under the Raton Creek Mine Permit for: Failure to pass surface drainage from disturbed areas through a sedimentation pond, a series of sedimentation ponds, or a treatment facility before leaving the permit area." The required remedial action to abate the NOV included installation of approved sediment control structures and the following related anions: Submit new designs for sediment control that a) captures all srtrface drainage and treau it prior to leaving the permit area, or b) retains it on site within anon-discharging facility" Implement new designs within IS days following 7R approval" In response to the NOV, Energy Fuels Mining Company (EFMC) inspened the site and reviewed bo[h existing site conditions and those portions of the approved permit document relating to drainage and sediment control plans for the loadout areas. The approved permit documen[ indicates that containment berms will be established, where necessary, along the permit boundary to control drainage and prevent runoff discharge from leaving the disturbed area. In lieu of developing designs for and construtting additional drainage structures, EFMC proposes to cons[rutt containment berms in accordance with the approved drainage and sediment control plan. Given the existing site conditions of uniformly flat surfaces combined with asemi-arid climate, the containment berms should effenively control site drainage while avoiding significant additional work and the associated surface disturbance. The berms will be constructed approximately 1.5 feet high, where necessary (based on any surface gradient which would tend to promote positive drainage), along the perimeter of both loadout sites. The proposed berms will serve to control ninon from any upgradient undisturbed areas and to intercept and direr any runoff to the existing sumps. Reclamation of both loadout sites will include regrading to contain all surface runoff on-site so that the berms can be eliminated.