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SUMMIT ENGINEERING C 0 1 ENGINEERS & LAND SURVEYORS <br /> Mail: P.O. Box 1897 Alamosa, CO 81101 P: 719-589-6147 E: summitengco@gmail.com <br /> Reclamation Plan <br /> Reclamation of the site will take place in phases as shown in those maps included in <br /> Exhibits C and F. Each phase of reclamation correlates to a phase of excavation. When <br /> one phase of excavation expires, reclamation of that particular phase will begin; thus, <br /> The Robins Rock Pit will be reclaimed as mining progresses. Mining operations should <br /> commence at the end of 2030, and the site should be fully reclaimed shortly after. <br /> Ultimately, the prominent defile in the cliff wall resulting from mining operations will be <br /> used as a livestock driveway after mining operations are completed. A semi-flat <br /> "platform" at the depth of basalt formation will be left approximately 90-feet above the <br /> valley floor. This platform will be graded to drain toward the southeast much like the <br /> existing terrain. The maximum depth of mining anticipated is 40-feet along the west <br /> edge of the pit (50-feet or more from the permit boundary). This depth with decrease to <br /> approximately 20-feet on the eastern edge of the operation extents. An outline of the <br /> plan is as follows: <br /> a) No overburden is expected to be encountered during mining operations because <br /> basalt rock outcrops are within a few inches of the surface. Thus, removal and <br /> replacement of overburden are not anticipated. <br /> b) Steep slopes exist throughout the permit boundary. These slopes are a result of <br /> the pit being located on a prominent escarpment that extends several miles in <br /> both directions. Consequently, there is little or no benefit to making all slopes <br /> within the site 3:1, particularly where the native slopes are more vertical in their <br /> original state. However, most areas affected by the excavation will not have <br /> slopes greater than 3:1, and all slopes that may occur further north and deeper in <br /> the mesa will not be greater than 3:1. <br /> c) Material that is appropriate for backfill encountered throughout, and during, <br /> mining operations will be stored on site to be used to establish finished 3:1 <br /> slopes in those areas where highwalls may occur. Said material may include <br /> gravel (3"-minus), sand, and loam. If not enough material is stockpiled to <br /> establish 3:1 slopes in the final phases of reclamation, material will be delivered <br /> to the site by the applicant. <br /> d) The following measures will be taken to revegetate the site once mining <br /> operations have been completed. <br /> • When the excavation has been completed, fine-grained material will be <br /> replaced to a depth of at least 6 inches and revegetated according to <br /> NRCS recommendations herewith. We estimate that approximately <br /> 18,000 CY of fine material will need to be moved from the stockpile an <br /> average distance of 400 feet with a rubber-tired load to get the material in <br /> place for final grading. <br /> Job # 1200710MP - C Page118of79 <br />