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COLORADO <br /> 0 Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> December 22, 2021 <br /> Andy Azacarraga <br /> M.A. Concrete Construction, Inc. <br /> 2323 River Road <br /> Grand Junction, CO 81505 <br /> RE. 32.5 Road Gravel Pit,Permit No.M-2009-035,Proposed bond calculation <br /> Dear Mr.Azacarraga: <br /> On November 10, 2021 the Division of Reclamation Mining and Safety(Division) inspected the <br /> above mentioned pit The last bond update was conducted in 2009 in conjunction with AM-1 and is <br /> based on the worst-case scenario of the approved permit Staff reviewed the permit file and has <br /> calculated a preliminary reclamation cost estimate (Attached). As noted in the inspection report <br /> areas related to Phase 1 were not inspected and physical site conditions are unknown. Staff has <br /> updated the 2009 cost based on inflation.Additionally pumping tasks were removed as this activity <br /> is currently not necessary to complete reclamation,no other figures were updated. Please note that <br /> the Division can only change input figures and unit costs are fixed based on the RS Means and CAT <br /> handbook. <br /> Please provide feedback on the Divisions calculation by February 28, 2022. If the Division does not <br /> receive a response by Monday,February 28, 2022 then the Division will issue a Notice of Surety <br /> Increase at the proposed amount of$13,677 for a total bond amount of$87,765 to be held. <br /> Please feel free to contact me with any further questions. <br /> Sincerely, <br /> Ar�� <br /> Amy Yeldell <br /> Environmental Protection Specialist <br /> Ec: Travis Marshall, Senior EPS, Grand Junction DRMS <br /> b '�fl�o <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 />