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L 0 R A D0 <br /> Division of Reclamation, <br /> Mining and Safety <br /> Dcpartmcnt of Natural Resources <br /> MEMO <br /> September 11,2019 <br /> To: Leah Simmons <br /> From: Tabetha Lynch <br /> RE: Elk Creek Mine; C-1981-022 <br /> RCE SL-1 <br /> I have updated the reclamation cost estimate (RCE) for Elk Creek Mine for the Phase I bond release SL-1. <br /> This including updating the costs with the most recent July 2019 costs, as well as removing and <br /> modifying tasks associated with SL-1. Minor Revision 106 tasks were incorporated into the estimate and <br /> a new maintenance item associated with the Elk Creek stream channel was added to Task 150,yearly site <br /> maintenance. Based on the RCE the required surety after the approval of SL-1 is $3,865,886. <br /> The following tasks were removed or modified: <br /> Task Modification <br /> 001 Reduced acreage between task 001 and 005 (bottom polygons) <br /> 005 Reduced acreage between task 001 and 005 (top polygons) <br /> 006 Reduced <br /> 014-016 Incorporated from MR106 <br /> 024 Removed <br /> 025 Removed <br /> 030 Removed <br /> 033 Removed <br /> 034 Reduced 19.4 acres <br /> 050 Reduced 19.4 acres <br /> 110 Reduced to remove reclaim of Elk Creek Portal and Backfill of shaft <br /> 130 Demo tasks were modified as follows <br /> Lamp house and Foreman Trailer and pads were removed <br /> Sanborn Overland Conveyor was reduced and one transfer station was removed <br /> Oil and fuel tank including sludge removal and haul were removed <br /> Wash bay, associated pad and footers were removed <br /> Coal stack tubes (2) and footers were removed <br /> Coal Reclaim structure removed <br /> Coal stack tube transfer conveyor was removed <br /> Power lines were reduced <br /> Shop,pad, and foots were removed <br /> Shop addition was removed <br /> 150 Added elk creek stream channel and ditch maintenance items for dozer and excavator <br /> 2hrs per year for 10 years. <br /> Cpl\ <br /> 0 <br /> 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br /> Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director 1876� <br />