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I ~ MINING PLAN EXHIBIT D <br />U <br />1. General Mining Plan <br />At the present time, gravel mining operations aze underway in the northwest corner of the permit <br />azea (Phase 1). Topsoil and overburden have been stripped with the topsoil stockpiled in a berm <br />along the western permit boundary and the overburden stockpiled in a berm east of the one- <br />hundred foot buffer zone between the mining operation and the Hutchins property along the <br />north permit boundary. Dewatering operations currently in use consist of a perimeter trench <br />which channels water to a sump located in the northwest corner of the pit. Water in the sump is <br />then pumped to a settling pond northwest of the sump and then dischazged to an existing <br />drainage ditch through a culvert on the Hutchins property. This method of dewatering will <br />continue for the life of the mine. The gravel that is mined is processed in the pit and transported <br />along an interior haul road from Phase 1 in a southeasterly direction across the existing permit <br />azea to the Redi-Mix plant located in the southeast corner of the existing permit area where it is <br />used to make concrete. A gravel access road has been constructed from 1800 Road located east <br />of the east pemut boundary to the Redi-Mix plant, which has been constructed in what was <br />previously identified as the southeast corner of the permit azea in the original permit application. <br />This road will be paved with asphalt in the summer of 2007. The road will remain in place after <br />mining is complete. <br />As indicated in the Introduction section of this application, the purpose of this amendment <br />application is to add approximately 83 acres to the existing permit. In general, only minor <br />changes to the mining and reclamation plans aze being proposed and the changes aze a result of <br />the addition of acreage to the existing permit. The following paragraphs detail the new mining <br />plan. Changes to the Reclamation Plan can be found in Exhibit E, Reclamation Plan. <br />The subsurface geology of the site consists of approximately four to fifteen feet of topsoil and <br />overburden overlying approximately forty feet of alluvial gravel. Underlying the gravel is the <br />Mancos Shale. In general, the azea will be mined by first stripping the topsoil and overburden <br />Anderson Pit, Apri107 D-1 <br />