PERMFILE136302 - Laserfiche WebLink

Home Browse Search

-5- Exhibit C - Mining Plan (continued) 11. Specify whether the deposit/ore will be processed on-site. Processing includes crushing, screening, washing, concrete or asphalt mixing, or milling. If the deposit/ore will be processed, then describe the nature of the process, facilities and chemicals utilized. The description should describe the measures to be taken to minimize disturbance to the hydrologic balance, prevent off-site damage, and provide fora stable configuration of the reclaimed area consistent with the proposed future land use. The process area and any'structures must be described on Exhibit E - Map. Note: If tailings ponds, heaps or vats are part'of the milting process, the mine plan description should address the following: Plant Facilities. Describe the chemical types and 'quantities to be utilized, chemical storage and spill containment. Plant operation details should include tank capacities, operating solution volumes, sump/pump back systems, curbing, etc. Tailings and Heaps. Describe the chemical constituents of the tailings or leached ore, the chemistry of any leachate, anticipated impacts to ground or surface waters and design details such as liners, diversions or chemical treatment facilities to be used to control these impacts. Drainage Control. Describe the measures used to divert upland drainage away from the site both during and after operation, This should include design details demonstrating the capacity of ditches and impoundment structures to contain operating solutions and the volume of water generated by a significant rainfall event. Maps and Plans. Design drawings should describe specific design details for tailings ponds and embankments, heap or vat configurations, ponds and ditches, ore and tail transport systems, etc. i '. , . EXHIBIT D - Reclamation Plan The purpose of the reclamation plan is to describe the timing, procedures, criteria and materials that will be used to reclaim the affected land to the proposed future land use. This plan must be correlated to Exhibit E - Map. .•The description of the reclamation plan must be adequate to satisfy the requirements of Rule 3 and demonstrate compliance with Rule 6. The local representative of the Soil Conservation Service can provide you with recommendations for on-site reclamation. At a minimum, you should include the following information: ~, 1. Specify the thickness of overburden to be replaced and when the overburden will be replaced in relation to ongoing extraction. We recommend that you consider backfilling and establishing the final reclaimed grade on previously mined areas at least once per year. If you backfill and reduce slopes as soon as practicable, then you will generally be increasing the efficiency of the operation by minimizing the handling of overburden, hastening reclamation and release of the financial warranty back to you.