Laserfiche WebLink
majority of the slopes are immediately under the big top soil stockpile area in Pit 1 as <br />well as the pit floor. <br />Stability ofslopes- We felt the 1:1 slopes with a bench as a protective measure was quite <br />adequate at this site based on the fact there are numerous mine shafts in the immediate <br />area in the same geologic formations that aze stable after 125 years with no timbering. <br />Also, we have mined this pit for 20 plus years and have never experienced any slope <br />failures. <br />Direction of mining Pit 1- As there is an existing operation at this site, mining will <br />continue on the level ofpresent pit. We will mine north and east to permit limits and <br />construct slopes and benches. At the same time we will mine west and south to daylight <br />floor to existing level. Upon completion of this phase we will drop back to south end of <br />day lighted pit area and mine a 30' cut back to north, east, and west. All phases will be <br />mined on 3:1 slopes up to bench areas, at which time bench will be constructed. Mining <br />will be performed on 3:1 slopes in order to minimize reclamation costs. Pit 1 will be <br />mined in this sequence to the pit floor elevation with the exception of area under <br />southwestern top soil pile in Pit 1. At this point, all of Pit 1 will be top soiled and seeded. <br />Any remaining top soil will be moved to east Pit 2 stockpile while mining out this area. <br />Upon completion, slopes will be top soiled and seeded and mining will commence in Pit <br />2. <br />Direction of mining Pit 2- Mining will proceed from north to south. Slopes and benches <br />will be constructed as mining progresses. Benches will be sloped into wall and top soiled <br />and seeded the same as Pit 1 as levels are mined out. Upon completion of mining, pit <br />floor will be graded and prepared for top soil placement. <br />Topsoil salvage- Past top soil stripping has indicated soil ranges from 6" to T deep. It is <br />difficult to calculate and average thickness. All rises or ridges are minimal but once you <br />enter a depression or low lying area, it increases instantly. There will be more than <br />sufficient top soil to replace to minimum of 12" in all areas. <br />Exhibit E-Reclamation Plan (Rule 6.4.51 <br />Re-vegetation ofbenches will occur upon completion and preparation ofbench. As <br />mining proceeds down, the bench will be top soiled and seeded. More than likely we will <br />hand-broadcast seed on benches as this will probably be relatively small areas. Top soil <br />will be spread and graded with a dozer. <br />Existing top soil piles- Existing top soil piles will be moved into N.E. stockpile area of <br />Pit 1 for fmal reclamation of slopes, benches and pit floor. <br />Exhibit F-Reclamation Plan Map1Rule 6.4.6) <br />The dates and signatures shown on map. The topography in question has been revised on <br />the map. Also note we changed pit floors to a 1 % drainage shown on map. The ponds <br />