2023-01-25_REVISION - M2010012 - Laserfiche WebLink

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Bulk storage of fuel and small amounts of lubricants will be stored on site and will be house in an earthen berm that will have a capacity of at least 110%of the tanks and containers to be housed. Mining will develop a gravel pit to a depth of approximately 15-20 feet. No groundwater is expected to be encountered during excavation and mining;therefore, no impact to the hydrologic balance is anticipated. No acid or toxic producing materials will be exposed during mining. No explosives will be used in conjunction with mining or reclamation. All interior haul roads will be temporary and will be reclaimed after the mining has been completed. The current haul road is approximately 25 feet wide. This is a privately owned site and does not require the State Historic Preservation Office requirements for a cultural or historic study. If the operator encounters any structure of note, the State Historic Preservation Office will be notified. 6.4.5 Exhibit E Reclamation Plan Reclamation to rangeland will occur following mining at the site. Slopes will be returned to a 3HAV slope or flatter when mining has concluded,thus allowing for reclamation to immediately follow mining as the site progresses. As topsoil,waste rock and overburden are removed from the working face,they will be stockpiled for future reclamation use. Throughout mining,slopes will be maintained at a 3HAV minimum, except for the active mine face. Waste rock and overburden will be placed on the pit floor as quantity allows. Four inches of topsoil will be replaced on affected surfaces. If necessary, surfaces will be roughened prior to seeding. All materials used for backfiliing will be generated from onsite sources. Onsite topsoil will be adequate for reclamation purposes. No importation of materials for reclamation purposes will be necessary. No trees, shrubs,or bushy-type vegetation will be planted. Only the appropriate grasses selected by the MRCS will be used. All Rite Paving and Redi Mix will use the seed mix from the original permit application and is attached for review. The seed will be drilled at W to%"in depth and straw mulch will be crimped in. All mining structures, including interior haul roads and stormwater diversion structures, will be reclaimed following all mining operations. All buildings are portable control vans. Throughout the mining area,salvageable surface material will be removed and stockpiled for use in final reclamation. Upon commencement of reclamation,the area will be monitored for noxious weeds. The original permit for this site contained a weed management program that will be followed,along with any additional guidance from the Las Animas County weed Control Program.