2009-02-26_PERMIT FILE - M2009018 (6)

Home Browse Search

Exhibit D- Mining Plan extracted, are detailed in Exhibit I & J: Soils and Vegetation Information, and are shown on Exhibit I & J: Soil and Vegetation Map. Aggregate extends from the overburden to a depth of 49± feet from the surface until it reaches the unconsolidated layer of Pierre Shale. Surface elevation for these tracts is established by survey at the existing water monitoring well identified in Tract C. Elevation at the surface is 4834.58± feet, with groundwater at 28.00± feet below the surface, or elevation 4806.58, as determined by a water level meter (March 2006). Initially, heavy equipment (typically, scrapers, dozers, or excavators operating alone or in combination) will extract soil, placing it along the basin perimeter in the construction of up to a five (5.0±) foot high visual berm. The berm will be variable in height and width, and may be comprised initially of soil, but may be combined separately with either overburden or clean fill. Outslopes of the berm will be 3H:1 V or flatter to aid establishment of grasses over the finished berm utilizing the approved seed mixture. Where necessary to aid in access along the perimeter of the pit or completed reservoir, the berms may be increased in width to facilitate the access of vehicles or heavy equipment. The height and width of the berm will be field fit at the time of placement and will not go beyond permit limits. While the berm width will vary, it will fit within the ten (10.0±) buffer between the permit boundary and any planned extraction, and where wider, will extend into the basin area conforming to 311:1 V minimum outslopes. To the extent possible, the height of berms will near five (5.0±) feet along the perimeter where a residential structure is within 125.0± feet from active extraction operations. Soils and overburden volumes extracted in excess of that needed for reclamation may be temporarily stockpiled as part of the berms, elsewhere on-site, or relocated to the Kurtz Project, until sold as product. To facilitate dry extraction of overburden and aggregate, groundwater will be discharged from the areas of active extraction into an existing seep ditch at the location shown on Exhibit C-2: Extraction Map. Discharge of waters will be conducted under an approved Colorado Dept. of Health discharge permit Subsequent to soil salvage, extraction of overburden and aggregate will commence. Extraction utilizes, but is not limited to, diverse heavy equipment; including, scrapers, excavators, dozers, backhoes, and related heavy equipment. The raw material will be transported by heavy equipment or haul trucks to on-site plant facilities, or to an established loading area where materials will be conveyed to on or off-site plant facilities. Varra Companies, Inc. 2 February 2008 Heintzelman Project RMS 112 Permit Application 3