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EXHIBIT D <br /> ' MINING PLAN <br /> ' The land within the existing mining operation is owned by Orrlando LLC (Orrlando). Orrlando has <br /> entered into a lease with the Bucklen Services Company for the purpose of mining aggregate onsite. The <br /> proposed permit boundary of approximately 60 acres is displayed in Exhibit B Vicinity Map, with mining <br /> ' activities anticipated to disturb approximately 25 acres of the site. The remaining unmined acres will be <br /> used as sites for overburden and topsoil stockpiles, offsets from existing structures,property lines and <br /> waterways and internal access. <br /> ' Geologic mapping by Hershey and Schneider(1972)indicates that the parcel to be mined is on one <br /> alluvial deposit of the Valley Fill alluvium north of the Cache La Poudre River. Specifically, the site is a <br /> ' higher terrace deposit which contains arkosic gravel and sand with some loosely cemented sand and <br /> gravel. Boring data,included in Exhibit S,indicates that bedrock is located at approximately 40 feet <br /> below the ground surface. <br /> The primary commodity to be mined is aggregate. The secondary commodity would be clean fill dirt,but <br /> it has not been determined if this will be sold. Aggregate will be sold off of Bucklen Services Company's <br /> ' sale yard. <br /> Methods of Mining <br /> ' Access to the site will be located in the southeast portion of the site, off O Street. The entrance will <br /> consist of a 150 feet long, 24 feet wide paved road. This road will also include a turn radius that will <br /> 1 assist semi-trucks turning left and heading east bound on O Street. <br /> At any one time,the active mining area will include the entire mine boundary, encompassing 25 acres. <br /> 1 The area will be worked on in a single phase,but will have three layers. The entire mine boundary will <br /> have topsoil stripped off,followed by the overburden, and finishing with the extraction of gravel to a <br /> depth of approximately 12 feet. This process will begin in the southeast and move towards the north on <br /> the site. <br /> Topsoil will be moved by scraper or excavator and dump truck to the southwest corner of the property <br /> where it will be stockpiled(see Exhibit C Mining Plan Map). A bridge or culvert crossing over the Strom <br /> Lake Drainage Ditch will be necessary to get heavy equipment across to the stockpile location; the <br /> crossing will be constructed so as not to impede flow in the drainage ditch. There is approximately 40,000 <br /> ' CY of topsoil on site. Approximately 2,000 CY will be stockpiled a day, until all topsoil has been moved <br /> to stockpile area.The 40,000 CY of stocked topsoil will remain on site and will be maintained in place <br /> through equally distributed mechanical compaction; no chemicals will be used. If necessary, stockpiles <br /> ' will be seeded to protect against wind and water erosion and be incorporated into a weed control program. <br /> Overburden will be moved by scraper or excavator and dumb trucks to the stockpile area, southwest of <br /> ' the mining area, as well.No dragline will be used in this process. Onsite,there is approximately, 302,000 <br /> to 444,000 CY of overburden, which will be stockpiled at a rate of 2,000 CY a day. Most of this stockpile <br /> will remain on-hand to be used for reclamation activities, while a small portion may be sold off. <br /> Tollgate Pit <br /> DRMS 112 Permit Application <br /> ' Page D-1 <br />