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Threatened and Endangered Species Habitat Assessment <br /> Two Rivers Parcels-Varra Companies <br /> Weld County, Colorado <br /> • The Contractor will protect the surrounding area and,from siltation. This will be accomplished <br /> by using silt fence and/or other measures, as necessary. The Contractor will repair all damage <br /> to erosion-control measures in the construction area due to rain, hail, and snow storms. <br /> • All temporarily disturbed areas will be reseeded with native seed mix as specified in the mine <br /> plan.The Primary Revegetation Seed Mixture combines a thoughtful mingling of predominantly <br /> native grasses of diverse height,form, color and function,to add cover,food source for wildlife <br /> and pollinators. <br /> • The cottonwoods along the lower terrace of the two rivers will be preserved. <br /> • All riverine areas will otherwise remain untouched. <br /> Voluntary Conservation Measures <br /> The following conservation measures consistent with Service recommendations for emergency flood <br /> response activities (Service 2013) have been incorporated into the project design to avoid and minimize <br /> adverse impacts on Preble's. Preconstruction design avoids riparian and wetland habitats. <br /> 1. All mining areas, access routes, staging areas, and work areas will all be outside riparian areas <br /> and in previously disturbed or modified cropland and nonhabitat areas. <br /> 2. The project avoids fragmenting linear riparian corridors. <br /> 3. The project will implement mine-site reclamation consisting of reseeding with native grasses <br /> and pollen producing species. <br /> 4. The project will avoid disturbing (e.g., crushing or trampling) or removing (e.g., cutting or <br /> clearing) all vegetation, such as willows,trees, shrubs, and grasses in riparian areas. A few tall <br /> trees and shrubs may be trimmed to provide a corridor for conveyors. <br /> Endangered Species Act (ESA) Compliance <br /> The project area does not fall within Service habitat or survey guidelines for the majority of the species <br /> listed by the Service as potentially occurring in Weld County(Table 2). The piping plover, pallid <br /> sturgeon, and western prairie fringed orchid are species that are affected by continued or ongoing water <br /> depletions to the Platte River system. Because there is no federal nexus,the project would avoid all <br /> waters of the U.S., and the project would not require a federal action,the project would not require <br /> Section 7 depletions consultation. <br /> ERO assessed the project area for suitable habitat for Preble's, eastern black rail (Laterallus jam aicensis <br /> ssp.Jamaicensis), monarch butterfly(Danaus plexippus), and Ute ladies'-tresses orchid (Spiranthes <br /> diluvialis or ULTO). Although the ESA does not apply to take of plants incidental to otherwise lawful <br /> activities, ERO evaluated impacts of the project on ULTO. <br /> ERO Project#21-266 6 <br /> ERO Resources Corporation <br />