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l (1, 11v <br /> PLANNING <br /> � L ` TEL:303-384-8097 14451OT"ST. GOLDEN,CO 80401 <br /> PUBLIC WORKS FAX:303-384-8161 <br /> Goldlen EL.T 303 38 8 5 4 1 1 WWW.CITYOFGOLDEN.NET <br /> — <br /> RECEIVED <br /> March 23, 2018 MAR P' -018 <br /> OMSION FECLA*TION <br /> Michael A. Cunningham r""A��'�AND SAFeTy <br /> Colorado Division of Reclamation Mining and Safety <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> RE: Empire Pit <br /> Reclamation Permit No. M-1977-534 <br /> Dear Mr. Cunningham, <br /> Golden has revised Technical Revision#3 (TR03) in response to the Division's adequacy review and <br /> comments received by the landowner. The substance of the revision—excavation and replacement of <br /> soils in the area that lacks adequate revegetation—remains the same. <br /> Per the recommendations in the attached report, Golden will excavate the project area 2.5 feet. A <br /> capillary barrier will be placed in the bottom 6 inches of the excavation. The materials used for the <br /> capillary barrier will be based on soil samples collected in the spring after the ground thaws. Testing <br /> results and a description of the capillary barrier selected will be submitted to the DRMS by July 1, 2018. <br /> Above the barrier, a 2 foot layer of subsoil would be placed and covered with a minimum 6 inch layer of <br /> topsoil. The topsoil and subsoil would be tested by the CSU soil testing lab and results would be <br /> submitted to the DRMS. Golden expects work to be complete by October 1, 2019. <br /> A new seed mix that is more tolerant of alkalinity and salt conditions is proposed for the area. Please <br /> see the attachment for details. <br /> Please contact me at abeierle@cityofgolden.net or 303-384-8153 if you have any questions or require <br /> additional information. <br /> Sincerely, <br /> Aav;L— <br /> Anne Beierle, Deputy Director <br /> Public Works Department <br />