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COLORADO <br /> �/ Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> July 8, 2025 <br /> Julie Mikulas <br /> Martin Marietta Materials, Inc. <br /> 1800 N. Taft Hill Road <br /> Fort Collins, CO 80521 <br /> RE: Financial Warranty Increase, Revision No. SI-3, Iverson Mine, Permit No. M-2011-001 <br /> Dear Ms. Mikulas, <br /> On July 8, 2025, the Division of Reclamation, Mining and Safety (Division/DRMS) increased the current <br /> Financial Warranty for the Iverson Mine (M-2011-001) to $7,460,253.00, in accordance with Rule 4.2.1 <br /> of the Mineral Rules and Regulations for the Extraction of Construction Materials. This is an increase of <br /> $2,519,353.00 from the currently held amount of$4,940,900.00. <br /> The surety increase is based on observations made during the June inspection, documents in the <br /> permit file, and the Division's financial warranty cost estimate provided to you on June 17, 2025. <br /> The Division ordered amendment of the current Financial Warranty, or submittal of a new Financial <br /> Warranty reflecting the increase, is due within sixty (60) days from the date of this letter, September 6, <br /> 2025. Failure to post the additional required Financial Warranty within sixty (60) days may result in the <br /> Division pursuing enforcement actions. <br /> Please make arrangements with Sara Stevenson-Benn at the Division's Denver office for submittal of <br /> the financial warranty. Any other questions regarding completion, execution and/or submittal of <br /> financial warranty forms should also be directed to Sara at sara.stevenson-bennPstate.co.us. <br /> If you need additional information or have any questions, please contact me by email at <br /> Patrick.lennbere(@state.co.us. <br /> Sincerely, <br /> a-4 <br /> Patrick Lennberg <br /> Environmental Protection Specialist <br /> F 011 <br /> 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 https://drms.colorado.gov/ <br /> <<v O <br /> Jared Polis, Governor I Dan Gibbs, Executive Director I Michael A. Cunningham, Director p <br /> **1876 <br />