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6.5 Consideration of Property Ownership. It is not anticipated that the project will cause detriment to neighboring <br />properties. <br />6.6 Safety of Impoundment Structures. Not applicable. <br />6.7 Floodplain Management [E.O. 11988]. It is not anticipated that the project will cause detriment to the Big <br />Thompson River floodplain. <br />6.8 Water Supply and Conservation. A water substitute supply plan, submitted to the Colorado Office of the State <br />Engineer and provided with the permit application shows that annual depletions totaling 71.38 acre-feet of evaporation <br />loss and other sources of loss will be replaced with 200 acre-feet of leased water from the City of Loveland, which, after <br />river transit losses of 3.75 % has a replacement yield of 92.24 acre-feet. In addition, there aze no plans for water storage <br />in the future. See a copy of the water subsfihrte supply plan as an attachment to this document. <br />6.9 Energy Conservation and Development [Federal Power Act of 1920 (16 USC 791a et seq.)]. Not applicable <br />6.10 Navigation [Section 10 of the Rivers and Harbors Act of 1899]. Not applicable. <br />6.11 Environmental Benefits. <br />Reclamation within the project occurs after completion of each mining cell. Backfilling of overburden materials, if <br />required, progresses, followed by regrading of the periphery of the mining cell to form a shoreline and transitional <br />area surrounding the former mining cell. The cell is allowed to fill with water to the ambient level. Topsoil is <br />replaced along the cell edges and revegetation commences. Revegetation includes the seeding and planting of grasses, <br />forbs, shrubs, and trees to stabilize the ]and surface, minimize erasion, and create apost-mining vegetation <br />community. For this project, two vegetation communities will be created, a mesic transitional mixed grassland in non- <br />wetlandareas, and a wet meadow and channel mixed grass/sedge/rush community in the wet meadow and drainage <br />channel mitigation wetlands. <br />Wetland mitigation will create, enhance, andJor replace jursdictional wetlands disturbed by the mining sequence. <br />Mitigation is described in the attached mitigation plan, but includes creafion of a wet meadow wetland and drainage <br />channel wetland equivalent in character to the oxbow channel wetlands disturbed by the project. While additional <br />wetland communities will be created along the shorelines of the post-mining lakes, these communities will develop <br />during the reclamation of the mining operation. <br />In addition, a deed restriction will be placed on the land to preserve and protect mitigation wetlands as well as non- <br />impacted jurisdictional and non jurisdictional wetlands on the property. The deed restriction will be implemented as a <br />special condition. <br />6.12 Economics. As described in the altematives analysis and comment responses from the permit application, <br />various mining scenarios have been evaluated with regazd the economics. See the alternatives analysis of the permit <br />application and the comment responses letter dated October 17, 2003 for more detailed economic information on this <br />alternative. <br />6.13 Mitigation. <br />See attached mitigation plan for details. Because of the nature of this activity being reviewed under an individual <br />permit, and because of NEPA regulations, the Corps has the authority to take jurisdiction over all wetlands at a <br />site (including non jurisdictional wetlands) and require mitigation for all impacted wetlands. <br />Project: Green & Croissant Aggregate Mining Applicant: Loveland Ready Mix, Inc. Pg 23 of 53 <br />Corps Flle No: 200]80205 Waterway: Big Thompson Wetlands, Wcld Counry, CO <br />