PERMFILE53532 - Laserfiche WebLink

Home Browse Search

As shown on the maps, the dig sites are generally located on the hill tops and not in the drainage areas. None are located on slopes greater than 30 percent. Where the actual excavations reach into the gullies, I will leave a strip of undisturbed ground if at ail possible (Some pre-existing disturbances do not have this buffer wne). All excavations wilt be termed and silt fences will be used in the berms. The Forest Service now requires this on areas of 10 percent or greater slope. Before an excavation is begun, I cut a berm along the downslope edge along the entire length of the proposed excavation using the track hoe bucket. A silt fence is then erected inside the berm and its apron is weighted down. Rocks and possible sedimem are caught either by the berm or the silt fence. Some dead timber from the Hayman fire will also be laid cross slope to help stabilize and reduce any possible runoff. All berms and silt fences will remain in place for at least a year after reclamation. (The Forest Service now requires them to remain in place until 80 percent growth is achieved.) Stormwater that leaves the sites is limited to that which is running off ground other than the excavation sites. I have not tried to mitigate any increased runoff caused by the Hayman fire except as it might have an impact on the mining sites by increasing the runoff received by them. At this point, I don't believe any of the sites will be affected; however, if necessary, I will cut berms above these sites and use silt fencing to protect the mining site. I am operating with this standard: Zero tolerance. No runoff with sediments will leave any of the permitted sites. I am and will take measures to insure this is achieved. Rule 6.3.4 Exhibit D-Reclamation Plan Reclamation Costs: Please comment on why the cost estimate for the reclamation is based on only a partial reclamation (I2, 000 sq ft excavation, and two prospect pits). Note that the Operator will be required to bond for the reclamation of the entire disturbance (Rule 4.2.2(2)). As stated, the reclamation costs were based on the areas anticipated to be disturbed in any one season and not yet reclaimed. The annual disturbance, not reclaimed in the same season, should average about 16,000 square feet (approximately I/3 acre.) I am now aware the Division of Minerals and Geology computes the bond, not on what is actually disturbed in any season and what would be required to be reclaimed, but on what is planned to be disturbed for the life ofthe operation.