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2H:1V Slope Reclaimed 3HAV <br /> Created by Dozer <br /> Push ®00,0• <br /> "�.,►�� Active Mining <br /> Highwall <br /> Figure D-1. Highwall Slopes <br /> Mining is broken up into pods. Pod 1, the current active area, will be mined out and become a <br /> processing area. Pod 2, in the northeast corner of the permit area, will be mined next, followed <br /> by the centrally located Pod 3. See Map C-2 for locations of each pod. All three pods are <br /> connected by an internal haul road. Throughout mining of the site, reclamation will be occurring <br /> incrementally as mining progresses. This reduces the overall disturbance at any point in time. <br /> There is sufficient topsoil and overburden on site to successfully reclaim the site to its final <br /> condition. Reclamation includes regrading of the site, topsoiling, and revegetation to create a <br /> final land use of hay meadows and dryland pasture. <br /> Pod 1 will see reclamation of roughly half its area once mining is underway in Pod 2. Only 20 <br /> acres will be needed for processing. As such, the total disturbance area at the Hayden Gravel <br /> Pit will be no more than 72.9 acres at any time. <br /> Dewatering will not be required while mining as groundwater is not anticipated to be exposed. <br /> No groundwater was encountered during exploration. The nearest existing wells (92353 & <br /> 287407) are installed with a collar that is below the bottom of mining (see Map C-2). There is a <br /> well within the Routt County Pit according to Colorado well records, however this well has been <br /> mined through by the county since its recorded installation. Therefore, it is assumed to be <br /> abandoned. The groundwater table is clearly well below the lowest elevation of mining. If any <br /> groundwater is exposed, mining will cease, and the mining depth will be adjusted to two feet <br /> above the groundwater level. <br /> No blasting will take place at the Hayden Gravel Pit. No refuse, acid, or toxic producing material <br /> are expected to be encountered in this operation. If these materials are encountered, at least <br /> two feet of inert material will be placed over the area and mining will move to a different area. <br /> Hayden Gravel Pit <br /> December 2022 D-2 Lewicki&Associates <br />