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Technical Revision <br />Empire Pit <br />Reclamation Permit No. M-1977-534 <br />Introduction <br />The City of Golden is submitting a technical revision to make changes to existing 112 Operation <br />Reclamation Permit No. M-1977-534 for its Empire Pit. Changes include modifications to the methods <br />to address potentially saline soils in TR-03, re-establishment of an access road to the former explosives <br />storage facility, and construction of a new road to access property to the south. <br />Reclamation Plan <br />Golden proposes to make the following changes to the reclamation plan for the area east of the <br />reservoir: <br />1. Saline Soils <br />Golden proposes to modify the reclamation plan revisions included in TR03 as follows: Golden <br />will excavate and remove 24 inches from the project area instead of the 30 inches approved in <br />TR03. A geosynthetic clay liner will be installed at the base of the excavation instead of the 6 <br />inch clay layer approved in TR03. <br />Consistent with TR03, a combination of soil and topsoil, 24 inches thick, will be placed on the <br />barrier to provide sufficient depth for the native species roots. The subsoil will be <br />approximately 18 inches thick, would be inert and not contain excessive salts or sodium, and <br />would otherwise meet DRMS requirements. The topsoil would be a minimum of 6 inches and <br />provide sufficient nutrients to support native grasses. Additionally, the topsoil would be within <br />the pH range and alkalinity/salt tolerance of the native grasses planted. <br />Golden proposes to delete the requirement to test the soils and submit results to DMRS before <br />application at the project area. Noxious weed best management practices will be followed <br />including using certified weed -free mulch and seeds and inspecting the site after seeding to <br />determine if noxious weeds are growing. If weeds are growing, appropriate noxious weed - <br />control methods would be used. <br />2. Access Roads <br />Golden proposes to re-establish an access road along the east side of the west fence line of the <br />pasture at the request of the property owners. The Reclamation Plan Map has been amended <br />to reflect this change and is included in this technical revision. Where this access road overlaps <br />areas that have had unsuccessful revegetation, soils will not be excavated and replaced. Where <br />