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• <br />The Crusher Feed Pile concrete paved base. and containment berm shall be constructed within 2 weeks after permit <br />issuance, prior to full-time processing. <br />The Concrete Leachate Collection/Recycle Facility, Stormwater/Sedimentation Collection Pond, and first stage of <br />the Diversion Ditch have been constructed directly below the pre-existing waste rock within the proposed Tailings <br />Impoundment. This was done to immediately begin to mediate the toxic and acidic run-off from this material. <br />Throughout 2009, any leachate from this source has been treated with lime, greatly reducing the negative impact to <br />the environment while a permanent solution, through this permit application, is being resolved. All construction was <br />supervised and inspected by a licensed CO professional engineer. As-built drawings are included in Exhibit E. <br />6.4.20(16) <br />There are no special construction measures that would require any specific Quality Assurance/Control programs <br />above and beyond what would be performed under normal commercial construction or engineering practices. <br />6.4.20(17)(a-b) <br />As previously mentioned in Exhibit D, 63.4(l)(a) and per the Mining Plan, Exhibit C 633(l)(b) & (c), there is no <br />overburden to be removed as part of the proposed operation and there will be no top soil reserved for reclamation. <br />Due to the nature of poor topsoil conditions at this site (0-2", previously described in Exhibit B) it is impractical to <br />salvage it for future reclamation uses. Within the Tailings Impoundment area, a great deal of the pre-existing <br />surface is covered with abandoned mine waste rock. Once this material is removed for processing, it will be re- <br />impounded in the same place and reclamation will proceed as outlined in Exhibit D. <br />6.4.20(17)(c)(iii) <br />Inorder for revegetation to be done, plant growth medium will need to be imported and incorporated into the <br />reclaimed surfaces. <br />• This medium consists of covering the impoundment area with a 4" blend of municipal Class-A bio-solids and wood <br />chips. The Class-A bio-solids shall be purchased and trucked to the site. They will not need to be produced on-site <br />and a composting program will not need to occur. Class-A bio-solids are produced by certified, carefully regulated <br />(CDPBE jurisdiction) facilities to generate a product that is authorized for direct land application. <br />The wood chips come from slash and woody refuse generated from beetle kill mitigation of local coniferous trees. It <br />should be noted that the USFS has an ongoing major pine beetle kill remediation project and the availability of wood <br />chips will not only be massive, but using this material will help the local community dispose of this "waste" product. <br />The blend shall consist of an average 1 : 5 volumetric ratio of Class-A bio-solids (1.0 ton/cu. yd.) and woodchips <br />(0.25 ton /cu. yd.). This blend shall be achieved by on-site mixing of the material utilizing a front-end loader. <br />Application shall be 400 tons of the mixture per acre to achieve 4" of coverage, assuming a weight of 0.4 tons/cubic <br />yard (mixture). A staging area for this growth medium is near the top of the Tailings Impoundment shown in <br />Exhibit E. Temporary erosion control measure shall be implemented around this area (ie silt fence, straw bales). <br />In the appendix of this Exhibit T, there is description of biosolids recycling done by the Rocky Mountain Water <br />Environment Association. <br />6.4.20(17)(c)(iv) <br />Because of the nature of the incremental, phased reclamation proposed, there will be an opportunity to measure the <br />success of this re-vegetation plan and provide for a chance to modify the method with soil amendments and/or <br />fertilizers on a as needed basis. <br />6.4.20(18)(a) <br />This operation can only improve the existing wildlife habitat. Pre-existing waste rock that is producing toxic and <br />acidic conditions is being removed and processed. This will provide for a net_gain of more hospitable wildlife <br />habitat and along with the prescribed reclamation measures in Exhibit D increase vegetation for wild grazing. <br />• See the statement from the CO Division of Wildlife contained in Exhibit B. <br />25