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6.4.4 Exhibit D <br /> Mining Plan <br /> The Mattics Pit is a site that Fremont Paving and Redi Mix is seeking to permit 1,313 <br /> acres. The target gravel source is located beneath limited topsoil and overburden. The primary <br /> commodities are sand and gravel. Incidental materials not used for construction material will <br /> be used to reconstruct the pit floor and lessen the pit slopes. A portable asphalt or concrete <br /> batch plant may be onsite as projects warrant. <br /> Mining will proceed from the center of the pit and move southeast until the first phase <br /> is complete. From there, the next phase is north of phase one and mining will occur in an <br /> easterly direction for phase 2 & 3. The fourth phase, which is less in overall acreage than the <br /> first three phases, is on the western side of the proposed permit. Phases 1-3 are split into 350- <br /> acre sections and phase 4 will be 260 acres. Each phase will be mined 100 acres at a time with <br /> the previous 100 mined acres undergoing reclamation. Extracted material will be moved to the <br /> processing area that is anticipated to be located on the initial 9.95-acre portion of the pit. <br /> Earthmoving will be accomplished using bulldozers, front end loaders and/or scrapers <br /> depending on the depth of plant growth material and overburden. All plant growth material <br /> and topsoil will be salvaged and stockpiled for reclamation use. Front end loaders will be used <br /> for mining at the site. These stockpiles will be located at the perimeter of the site and posted <br /> as reclamation topsoil. Waste rock and overburden will be stockpiled and used to rebuild the <br /> pit floor and slopes during reclamation. Overburden perimeter stormwater diversion berms <br /> will be constructed as excavation and reclamation progresses. <br /> Mining will develop a gravel pit to a depth of approximately 20 feet. The private road <br /> will be reestablished across the bottom of the reclaimed pit. No groundwater is expected to be <br /> encountered during excavation and mining; therefore, no impact to the hydrologic balance is <br /> anticipated. No acid or toxic producing materials will be exposed during mining. No explosives <br /> will be used in conjunction with mining or reclamation. <br /> The proposed mining operation will consist of an access road southwest of the site. <br /> Aggregate will be processed and sized using a crusher and screens. All interior haul roads will <br /> be temporary and will be reclaimed after the mining has been completed. It is estimated that <br /> the life of the pit is 20-25 years and is dependent upon demand. <br />