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COLORADO <br /> Y Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> October 7, 2019 <br /> Kirk Daehling <br /> Natural Soda LLC <br /> 3200 CR 31 <br /> Rifle,CO 81650 <br /> RE. Nacholite Project,Permit No.M-1983-194, TR-44 Reclamation Cost Estimate-Changes to <br /> Bond <br /> Dear Mr. Daehling: <br /> This reclamation cost update was in response to the technical revision request(TR-44) which was <br /> submitted on October 1, 2019 and a site inspection conducted on October 3, 2019. The Division is <br /> mandated to recalculate the reclamation cost estimate to ensure that the Financial Warranty <br /> adequately,reflects the actual current cost of fulfilling the requirements of the approved <br /> reclamation plan. <br /> Below is a table summarizing input values that have been updated with technical revision (TR-44) <br /> as compared to previous technical revision (TR-43). This table does not account for price changes <br /> resulting from inflation or other RS Means cost changes. On July 1, 2019 the Division implemented <br /> it's second of four incremental increases. <br /> Task Form Used Change Justification <br /> 01a Demo - Updated existing building dimensions <br /> Removed TR-36 features no longer to be constructed <br /> Updated pipeline inventory based on email average of 34,948 <br /> LF of 10". <br /> Removed electrical infrastructure to be removed by WREA <br /> Job task hours adjusted to reflect less work <br /> 02a Borehole Updated names accordingly <br /> 05a Dozer - Updated per D&A Repose 46 ac of pads requiring reclamation <br /> (Disturbed and Interim Reclamation) <br /> 46 ac @ 24" (148,427 CY) <br /> OF: <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 <br />