2019-09-09_PERMIT FILE - M2018063

Home Browse Search

MINING PLAN EXHIBIT D (CONT) Each time the mine is re-entered, mining begins by setting up the plant and if needed an area is stripped. The salvaged topsoil will be stockpiled along the mine perimeter setbacks or on the mine floor, i .e . , in places where it will not be disturbed until needed. Much of the permit area will continue to be used by the owners for their ranching purposes throughout the life of the mine . The approximate location of the soil piles are shown on the MINING PLAN MAP. Mining will begin on a section of the slopes created at the end of the last mining cycle until a near vertical face is open. This face will be worked to the east and west until it extends across the property and at that time mining will progress to the south or north depending on the Stage mining is taking place . As mining progresses thru the site the processing plant will be set near the open face to reduce the haul distance from the mine face . As mining progresses the plan is to begin to armor both sides of the embankment along the creek channel . The plan entails building the channel side armoring as mining progresses when mining gets within 350 feet of the channel bank. When mining reaches the final dig line on the excavation side that section will be armored. In general, the toe of the armoring will be below the thalweg of the channel, so on the outside it will be 5 ft below and in the inside it will be 3 feet below. The material will be placed a minimum of two (2) feet thick. The armoring material to be used will be recycled concrete/asphalt that conforms to the definition of Inert Material, available to the Ellicott Sand & Gravel, the exterior slopes will be graded 2 . 5 : 1 and the inside slopes will be 3 : 1 . The size of the material will fall in the range of 12 to 36 inches or greater and will be placed below grade and on the inside it will be covered with material from on site . Adequate quantities will be stored on site to complete the necessary armoring on any give section. It will then be seeded when the area is reclaimed. The Typical Armoring Cross Section show on Figure D-2 provides details . This pit will be operated year-around by Ellicott Sand & Gravel LLC, weather permitting. There may be periods when the demands for material are slow and no mining will take place at which time the mine will become an Intermediate Operation. 7 (revised 9/9/19)