2011-06-30_REVISION - M2002004 (82)

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OVERVIEW GCC RIO GRANDE, INC. PUEBLO CEMENT PLANT AND LIMESTONE QUARRY EXHIBIT E - RECLAMATION PLAN The Reclamation Plan is based on the following assumptions: Revised June 29, 2011 E -1 Reclamation of disturbed mine areas is an integral part of the planned mining operation. Two distinct phases of mine reclamation will performed: 1) Mine Area reclamation performed contemporaneously following mining operations, and 2) Final Closure reclamation which will be performed at the time the mine permanently closes. Pursuant to Special Use Permit No. 1999 -002, issued by the Pueblo County Board of Commissioners, GCC is not required to reclaim any of the land used for cement manufacturing.' In addition, as owner of land on which GCC Rio Grande has constructed the plant's access road, a bridge over the St. Charles River and a railroad spur connecting the cement plant to the BNSF railway, the State Land Board will not require the removal of these improvements. Reclamation of the GCC Rio Grande Pueblo Limestone Quarry will involve backfilling and grading mined out areas to achieve planned post- mining topography, reconstructing soil profiles to provide a suitable plant growth medium, reconstructing drainages to safely convey storm water runoff through and off of the mine site, and establishing vegetation communities capable of supporting the designated post - mining land uses. Reclamation will be conducted contemporaneously with mining. • Disturbed areas will be reclaimed; • Newly excavated materials will be placed into previously excavated, un- reclaimed areas wherever feasible. Otherwise, materials will be placed in temporary stockpiles and stabilized; • No stockpiles will remain at the conclusion of mining and reclamation operations; • Reclaimed materials include topsoil (assumed to average approximately 6 inches in thickness), subsoil (assumed to average approximately 18 to 24 inches in thickness), unconsolidated material below the soil horizon (variable thickness), and shale (0 to approximately 15 -feet thick); • Topsoil (also identified as the A- horizon) will be replaced on top of subsoil (identified as the A -C horizon), and the subsoil will be placed on top of a regraded, mixed, unconsolidated material /shale horizon; • Reseeding will follow completion of materials placement; and • Revegetation efforts will be monitored and maintained. BACKFILLING, GRADING & POST - MINING TOPOGRAPHY Previously mined areas will be contemporaneously reclaimed as part of the normal mining cycle. As ' "Per Title 17 of the Pueblo County Code, ... approval of a special use effectively changes the zoning of the subject property to specifically allow for the use(s) identified in the special use permit. ... SUP 1999 -002 does not require reclamation of the land used for cement manufacturing. Zoning Interpretation of Rio Grande Special Use Permit No. 1999 -002, Pueblo County, Colorado, Memorandum from Kim Headley, Director, Pueblo County Planning & Development Department, June 8, 2011. [Emphasis in original.] 2 GCC Improvements, Letter from Kerri Stroup, Assistant Attorney General, State Trust Lands, Natural Resources & Environment, State of Colorado Department of Law, December 10, 2010. Exhibit E — Reclamation Plan