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<br />A water runoff control system was plaiuiad to enhance and maintain the <br />stability of the tailings dam As much water runoff as possible is diverted <br />around the tailings pond and away from the outer edge of the tailings dam em- <br />bankment. Water runoff from above the tailings pond is controlled by a <br />diversion ditch with s downstream born. Similar ditches are used to divert <br />water runoff away from the edges and toe of the tailings dam. These ditches <br />were excavated when the started dike was constructed, and were built and <br />maintained in a manner that red~.icea water velocity in the conveyance system <br />and prevents downstream erosion. <br />In addition to these diversion ditches. the lower sections of the tailings dam <br />embankment are protected aganiat arcaian fi om surface water runoff with a <br />layer of riprap. This riprap pretectien material cronsieta of irregular sized <br />Boulder Creek granite, and was obtained from mine development rock from the <br />Mogul mine. <br />Any topsoil of aull'icient quality for sustaining vegetation that waa encountered <br />during the construction of t_he taiings dam was removed sad stockpiled within <br />the permit boundary area. 'Ilse area southeast of the mill building, between the <br />prospect pits on tha ti.nilitc Cloud and II~•cuiaa patented lode r,ining claims, <br />are being used to stockpile topsoil. The tapaoil will be protected from erosion, <br />and will not be disturbed by any mining operations in this location. A thick <br />wood fiber mulch was applied to the surface of the stockpiled topsoil, and <br />shallow diversion ditches were drag around the perimeter of'the topsoil in order <br />tO Ini nimi~t~ ero810n. <br />The larger trees that were removed from the tailings impoundment area during <br />tha construction stage were used for none timber and firewood. The smaller <br />trees and shrubs, and the branches and foliage from the larger trees, were <br />incorporated in the wood fiber mulch that was applied to the surface of the <br />stockpiled topsoil. <br />Re vegetation has proven to be the moat effective reclamation method for sur- <br />face lands affected by mining and milling acti.~ities. If properly established, re <br />vegetation will provide effective erosion control, contribute aigniiicantly to <br />water quality, result in aesthetic improvement, and return afFa:ted lands to a <br />ailvicultural usefulness. Therefore, the estabhehment of a permanent cover of <br />indigenous vegetation on the land surface atiecied by these milling operations <br />will be the primary cbj ective of this reclamation plan. <br />Whereas the mine dumps are a mixture of coarse and fine-grained quartz vein <br />r•.ateral and waste rocks, t~:e mill tailings will consist of fine e~^.•ained sand and <br />silt that are predormnately composed of gangue minerals. Because of the dif- <br />ferent physical and chemical characteristics between the ruins dumps and the <br />mill tailings, the eetabllehment of a divine and effective vegetative Grover on <br />these dissimilar land surfaces will require separate approaches w re <br />vegetation. <br />