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110 Permit Application Colorado Division of Reclamation, Mining and Safety <br />MINING PLAN - EXHIBIT C <br />BDM has prepared responses to each of the review standards in Section 6.3.3 in the <br />Construction Material Rules and Regulations. The review standard is stated followed by BDM's <br />response. <br />Rule: The purpose of the mining plan is to describe how mining will affect the permit area for the <br />duration of the operation. This plan must be correlated to Exhibit E - Map. The description of the <br />mining plan must be adequate to satisfy the requirements of Section 3.1 and demonstrate <br />compliance with Rule 3. At a minimum, the Operator/Applicant must include the following <br />information: <br />(A) Rule: specify the estimated dates that mining will commence and end. If the operation is <br />intended to be an intermittent operation as defined in C.R.S 34-32.5-103(11)(b), the <br />Applicant should include in this exhibit a statement that conforms to the provisions of <br />Section 34- 32.5-103(11)(b), C.R.S. <br />Response: Mining will commence on June 1, 2008 and will end on June 30, 2013. <br />Following permit issuance and prior to mining, storm water control measures and best <br />management practices will be put in place and topsoil will be salvaged and stockpiled. <br />Temporary cessation of operations at the proposed permit area is not anticipated. <br />However, access to the pit may be seasonally impacted by snow cover. After June 30, <br />2013, reclamation of the site will begin and will be completed during the 2013 summer <br />season. Upon completion of reclamation activities in the fall of 2013, the Board will be <br />petitioned to make a determination of the end of the life of the mine and a release of the <br />performance bond. <br />First year production is estimated at 3,600 cubic yards of bedrock material. The following <br />years' production levels are estimated to be 150 cubic yards per year. <br />(B) Rule: the estimated depth to which soil, suitable as a plant growth medium, will be <br />salvaged for use in the reclamation process. This description must be consistent with <br />information provided in Exhibit B. Sufficient soil must be salvaged to meet the vegetation <br />establishment criteria of Rule 3.1.10. If plant growth medium is not reapplied on a <br />graded area immediately after salvage, then the Operator/Applicant must specify how <br />the topsoil will be stockpiled and stabilized with a vegetative cover or other means until <br />used in reclamation. Plant growth medium stockpiles must be located separate from <br />other stockpiles, out of the way of mine traffic and out of stream channels or drainage <br />ways. The location of plant growth medium stockpiles must be shown on Exhibit E - <br />Map. <br />Response: All soil suitable as a plant growth medium will be salvaged from proposed <br />disturbance areas. Based on site observations and NRCS mapped soil characteristics, <br />six inches of suitable soil occupying approximately five percent of the site is available to <br />be salvaged (see existing disturbance area boundary, Exhibit E). The aerial extent of <br />soil is limited due to historic removal of rock from the site. Salvaged topsoil will be <br />placed on the north (uphill) boundary of the site in a stockpile. Salvageable soil resulting <br />from construction of the clear water bypass around the upper reaches of the highwall will <br />be placed in windrows immediately adjacent to its origin. All stockpiles will have interim <br />stability measures implemented including seeding with the NRCS recommended seed <br />mix represented in the Reclamation Plan (Exhibit E). The topsoil stockpile(s) will be <br />Tetra Tech Apri12008 (May 2008 Application Amendment Page)