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COLORADO <br /> UDivision of Reclamation, <br /> Mining and Safety <br /> Department of natural Resources <br /> 1313 Sherman St. Room 215 <br /> Denver, CO 80203 <br /> January 25,2022 <br /> Mr.Kirk Daehling <br /> Natural Soda LLC <br /> 3200 CR 31 <br /> Rifle,CO 81650 <br /> Re: Nahcolite Project,Permit No.M-1983-194,Technical Revision Approval,Revision No.TR-48 <br /> Dear Mr.Daehling: <br /> On January 25,2022 the Division of Reclamation,Mining and Safety approved the Technical Revision application submitted <br /> to the Division on January 18,2022,addressing the following: <br /> Drilling and Completion of Subsurface Subsidence Monitoring Well 17H--I V SSMW located on the pre-existing 16- <br /> 17H-1 V pad <br /> The terms of the Technical Revision No.48 approved by the Division are hereby incorporated into Permit No.M-1983-194. <br /> All other conditions and requirements of Permit No.M-1983-194 remain in full force and effect. <br /> If the revised liability amount exceeds the performance bond currently held(see below),please submit additional bond. The <br /> revision will not be final until the bond is approved by the Division. <br /> Bond Held: $3,671,965.00 <br /> Prior Liability: $3,671,965.00 <br /> Change in Liability: $241,741.00 <br /> Revised $3,913,706.00 <br /> Liability: <br /> If you have any questions,please contact me. <br /> Sincerely, <br /> A�r 5z4fw4e <br /> Amy C.Yeldell <br /> Environmental Protection Specialist <br /> ''• <br /> 1313 Sherman St. Room 215 Denver, CO 80203 P (303)866 3567 F(303)832 8106 https://drms.colorado.gov �07 <br /> * *; <br /> Jared Polis, Governor I Dan Gibbs, Executive Director Virginia Brannon, Director <br /> *187SM <br />