2012-09-05_REVISION - M1995030 - Laserfiche WebLink

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MINING PLAN EXHIBIT D (cont) and will be responsible for safety during a blasting event. No explosives will stored on the site. McAtee Construction Co. will maintain information on each blasting event at the mine and make it available to the Division upon request. The information will contain the date, time, charge size and blasting material type used. A copy f the explosives license and name of the contractors person el respon- sible for detonation of the charge will be kept also. There is a single drainage ditch shown on MAP EXHIBIT C. At some time in the future we will cross the ditch to mine Stage II. This will involve building a bridge or placing culverts in the ditch. Another alternative may be to relocate the ditch around the south and east sides of the mine or mining thru the ditch and allow the water to enter the excavated area and pass thru the lake, exiting on the east side. If a permit is needed for any of these options it will be obtained from the jurisdictional agency prior to the activity taking place. In addition, a Technical Revision showing the proposed change will be filed with the Division prior to making the change. Wherever the mining operation is adjacent to the ditch and around the mine perimeter a 100 foot mining setback will be maintained to allow for sloping as discussed above. All the setbacks will be used as areas to stockpile growth medium and will contain access roads around the mined area. The setback lines on the map are the indication of the mining limits, i.e. the top of the slope into the lake area. Once the bank slopes are established and we are assured the setbacks will no longer be disturbed they will be reclaimed in the prescribed manner. As noted above the area needing reclamation will be no more than 16.00 acres ± at one time. All interior pit slopes will be maintained with a pit -ward attitude so that there will be no drainage off the affected land. This same slope management plan will prevent any offsite slides or other disruptions, and will also address some of the storm - water runoff questions arising from the Clean Water Act. No water will be discharged from the pit, but we will be applying for a Colorado Pollutant Discharge System (CPDS) permit to address the stormwater management at the mine. McAtee Construction Co. has adequate water available to meet the requirements for evaporative and process losses on the 5.10 acres of the current mine. The existing Augmentation Plan (case #2000CW185) and well permit (68697F) will be revised prior to any new water being exposed. Current water information can be found in Exhibit G - Water. 11