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PERMIT. APPLICATION <br />REGULAR 212.(AMMENDMEN`I) <br />flew ti,mm~endeaQ rrttn~tn~j area <br />(s~1~D~ P'lt-) <br />EXHIBIT D <br />Miningl'lan <br />~ Sandso, Ins.. proposes. an out,oE stream surface mine-to extract sand and gravel materials. <br />This. extraction .will occur-during file winter months-of November through Mareh. The <br />mining or exeraetion of the materials wrll Ire confitte¢ to d,e t~otzndariss listed and shown on <br />Exhibit" G: l~?tcavation of dte materials would be done uti}izing a variety of equipment <br />including front~end loaders, scrapers, bulldozers, draglines, traek-hoes, truek, etc., a5 <br />neeessary_ Alttough ground water will be rncountc~rcd, the pit tivitl Dave a minimum of 300 <br />Eest of separation from thencarby Arumas ttivcr. 'l~he groundwater that will be encountered <br />is appro~matety. &12 feet below the surface, depending on weather and moisture eonditions <br />kom yesr to year. The estimated commenccm~r lots For mining will be approximately mid <br />November, 2004. Life of the pit will be largely market driven but, based on current volumes <br />of demand, the fife expectancy is 20-30 years. Topsoil that will not be used for immediate <br />reelattratian will be stabilized with 'a vegetative cover anti! it is used for rcclarrr3tion. <br />Thickness of tic topsoil ar-erages 18"_ Prom this 18" average and below.to approximately <br />75', is suitahle material for processing. The deptt of tte excavation wi}i be approximately <br />35'. There wil! be no stockpiles of waste rock or overburden. <br />Pit excavation will begin at the south end of the pit lvidr removal of topsoil to be stockpiled <br />for reuse during reclamation. Topsoil rnatcrial in excess of that required for reclamation <br />would he slaved. in. low. azeas of.pasturetand owned by Sandco and adjacent to the pit azea <br />and seeded with native grass. 1=.xeavation would begin at die west pit boundary and extend <br />to the east pit boundary. tlpproximately hvo acres per year will be stripped to expose the <br />sand and gravel deposit. Upon reaching du cast pit boundary, remova} of the sand and <br />gravel to about one foot above the groundwater table would progress back to the west pit <br />boundary. Excavated material would be hauled to stockpile at the existing processing area_ <br />The subsequent excavation would again start at the cast pit boundary and tnatenal removed <br />to the final grade. 1Vet material removed will be placed on the previously excavated surfass <br />to allow drainags of water before loading and transporting to the stockpile area. The <br />.._ _ ..backslopes of_tte pit boundaries volt-bc inac6, e~ a slope not steeper than t' vertical to 3' <br />horizontal: Fxeavated slopex drat are temporary, i.e., betwe<~n the yearly excavations within <br />the pit will be made'to approximately t' vertical to 1.5' horizontal_ This protedure will. be <br />followed on.a yearly basis until excavation is completed to the north pit boundary. <br />