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Environmental Assessment <br /> Table 2-6.Reclamation Timetable <br /> Activity Estimated <br /> Timeframe <br /> Mine Portal Sealing 1 month <br /> Demolition and Removal of Structures 4 months <br /> Backfilling and Grading 6 months <br /> Re-Establishment of Surface Drainages 2 months <br /> Re-Top soiling 2 months <br /> Revegetation 1 Month <br /> Removal of Sediment Control Structures, 2 months <br /> Re-Top soiling, and Revegetation (through 2 years later) <br /> Revegetation Monitoring Biennially <br /> (estimated at 2-3 years until bond release) <br /> Reclamation details including: soil removal, storage, and redistribution; soil suitability descriptions; <br /> revegetation; revegetation success criteria; and sealing mine openings are described in detail in the state <br /> mine permit C-1981-035. Reclamation details for surface disturbance associated with exploration drilling <br /> on UMU surface are provided in Federal Permit CO-0106A. All reclamation activities are in conformance <br /> with all information required under 30 CFR 784.13 through 784.26 and CDRMS Regulations of the <br /> Colorado Mined Land Reclamation board for Coal Mining. <br /> 23.7 Design Features <br /> The design features included as part of the Proposed Action are measures intended to minimize impacts to <br /> the environment and to area residents. Many of these design features were included in GCC's LPC LUP <br /> application or were negotiated or required by LPC during the LUP review process to meet LPC's Code <br /> Standards for Compatible Development(Section 82-193(c) (2)(a)through(f)of the LPC Code of <br /> Ordinances) as required to obtain a Class II land use permit. These measures are summarized below and <br /> grouped by the issues that they address. These design features are included in the Proposed Action as <br /> GCC committed measures to eliminate, reduce, or monitor potential resource impacts associated with <br /> mining activities at King II Mine. These and additional operating conditions are detailed in the LPC LUP <br /> Staff Report publicly available on the La Plata GCC Energy website at: http://laplatacount�gm2.com <br /> /Citizens/Detail_Le iFg ile.aspx?Frame=&MeetingID=3103&MediaPosition=&ID=3163&CssClass=. <br /> Design Feature la: Dust from facility and mining operations <br /> Dust generated by surface coal handling activities is suppressed or contained by the design of processing <br /> equipment. For example, conveyors and transfer points and associated screening and crushing equipment <br /> are enclosed. The coal stockpile conveyors are discharged through stacking tubes rather than into open <br /> air. Coal is loaded into trucks with equipment designed to minimize fugitive dust emissions. <br /> DOI-B LM-CO-S010-2011-0074-EA <br /> September 2017 <br /> -44- <br />