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Processing_Eguipment <br />The site currently contains a processing plant for screening, crushing, and washing of <br />aggregate material. A portable recycling plant for concrete/asphalt will be used on the <br />site as needed. The existing concrete batch plant adjacent to the site will be added to the <br />new permit boundary. The concrete hatch plant and portable recycling plant will remain <br />as part of the final reclamation. <br />Earth Moving Equipment <br />Dozers, loaders, scrapers, excavators, and compactors will continue to be used for mining <br />and earth moving operations. Field conveyors will be used as needed for mining <br />operations. <br />Miscellaneous <br />The site currently contains an officefshop area and scale house to support the mining and <br />processing operations. No addifional facilities will be created for the proposed <br />amendment area. Dewatering pumps and generators and watering trucks will be used <br />within the proposed amendment area as needed. <br />Similaz to the current mining operation, as mining progresses in the proposed amendment azea, <br />topsoil and overburden will be stripped with scrapers to expose the aggregate product below. All <br />soil and overburden material will be used on-site for reclamation so long-term stockpiling of <br />these materials is not anticipated. If overburden stockpiles aze necessary, they will be located <br />within, or adjacent to, the proposed mining cell and placed so that they do not impede potential <br />floodwaters. Mining of the aggregate will progress down to the underlying claystone bedrock. <br />The active mining face will extend no more than 1000 feet in length. During mining and prior to <br />reclamation, the cell walls will be a nearly vertical to'hH:1V slope. The aggregate material will <br />be temporarily stockpiled or placed directly onto a conveyor system for transport. The conveyor <br />system will transport the material to be processed at the existing processing facility. <br />During most of the current and proposed mining operation, overburden from the mining area will <br />be used for reclamation of the mined out cells. As the mining cells are excavated, side slopes <br />will be created and portions of cells will be partitioned off to create sedimentation basins as <br />necessary. Although the mining face will remain disturbed until the cell is mined out, the exterior <br />walls of the cell will be backfilled, graded to a 3H:1 V slope, and seeded as mining progresses. <br />The area along the exterior cell wall where backfilling and grading has been started, but has not <br />yet been completed, will be no greater than 1000 feet in length. Once backfilling and grading <br />has been completed in an azea, the top of the slope and the side slopes above the anticipated <br />water level will be seeded as soon as practicable (based on first available seeding season). <br />Portions of the mine cells will also be used as sedimentation basins for process fines produced <br />from the on-site processing facility. As portions, of the sediment basin become full, new <br />sedimentation areas within the cell will be created and the full sediment basins will be readied <br />for reclamation. As part of the proposed final land use, it is likely that the mining cells will also <br />receive overburden and bedrock material from mining of the adjacent Wattenberg Lakes site <br />OMG 111 Permit Amendment <br />Page 6 <br />