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EXHIBIT D <br />MINING PLAN <br />Operation Overview <br />Historical Operation Areas: This site has and continues to be a source of gravel for El <br />Paso County and the Colorado Department of Highways. It is also used by several <br />private contractors as a source of grave] for roadway and other types of constmction. The <br />oldest mined areas are near the north easterly comer of the site. <br />Affected Land included in this Operation: This amendment application seeks to add area <br />to the permit boundary which lies to the west and south of the existing permit boundary. <br />The amendment is to facilitate the expansion of the pit. <br />The permitted azea and the effected azea will be amended by this application in order to <br />expand the mining area. <br />Methods of Minine: The pit is still managed by the permittee. The permittee allows the <br />extraction of materials from the pit by others parties. The removed materials aze used to <br />constmct, re-surface and otherwise maintain the many miles of gravel roadway in the <br />county and for site work at various construction sites in the county. <br />The operation of the site is consistent in its nature and will continue to be. Material is <br />excavated using a front end loader(s) and placed in trucks. Material is removed from the <br />working face of the pit. Processing of the material will take place on site to improve <br />gradation and better meet various project specifications. The overall result is a relatively <br />small physical working azea for exposing the working face, a track turn aoound area, the <br />processing area and the use of stock piles. <br />The current access to the site is from Curtis Road. The entrance is just to the south of the <br />intersection of Curtis Road and Garrett Road. The entrance is closed and locked during <br />periods of inactivity. There is access to rangeland owned by the permittee through this <br />entrance; however the primary use is for the gravel pit. <br />EarthmovinQ Operations (Soil & Overburden Salvage): <br />As a new area is opened for grave] extraction the topsoil is pushed aside, typically with a <br />bulldozer. As a result topsoil stockpiling occurs around the perimeter of the mining azea. <br />This facilitates the replacement of topsoil over the regraded area by simply using the <br />bulldozer to push the topsoil on to the newly established slopes. <br />