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2019 Biological Resources Inventory Report <br /> Table 3: <br /> Federally Listed Species Known to Occur in Adams County,Colorado <br /> Common Name Scientific Name' Status' Likelihood of Occurrence in Project area/Habitat Suitability3 <br /> Ute Ladies'-tresses Spiranthes diluvialis FT Unlikely to occur.Suitable habitat likely does exist for Ute ladies'-tresses <br /> orchids orchid(ULTO),however the species is not known to occur in Adams <br /> County.Suitable habitat includes perennial stream terraces,floodplains, <br /> and oxbows at elevations between 4,300-7,000 feet.Recent surveys <br /> since 1992 have expanded the number of vegetation and hydrology types <br /> occupied by ULTO to include seasonally flooded river terraces, <br /> subirrigated or spring-fed abandoned stream channels and valleys,and <br /> lakeshores.Twenty-six populations have been discovered along irrigation <br /> canals,berms,levees,irrigated meadows,excavated gravel pits,roadside <br /> barrow pits,reservoirs,and other human-modified wetlands.The habitats <br /> at the crossings of the South Platte River have dense vegetation cover <br /> with at least partial canopy coverage.No critical habitat designated for <br /> ULTO exists in the Project area. <br /> Western Prairie Fringed Platanthera FT Not present.Western prairie fringed orchid is a perennial orchid of the <br /> Orchid3 praeclara North American tall grass prairie and is found most often on unplowed <br /> calcareous prairies and sedge meadows.This species is dependent on <br /> mycorrhizal fungi,and its persistence is dependent on periodic <br /> disturbance by fire,mowing,or grazing.The species occurs in Iowa, <br /> Kansas,Minnesota,Missouri,Nebraska,North Dakota,and Oklahoma. <br /> Upstream depletions to the Platte River system in Colorado and Wyoming <br /> may affect the species in Nebraska.No critical habitat is designated for <br /> the orchid in the Project area. <br /> 1 Source:Ackerfield(2015) <br /> 2 FE=Federal Endangered,FT=Federal Threatened <br /> 3 USFWS(2017a) <br /> 3 Water depletions in the North Platte River,South Platte River,and Laramie River basins may affect the species and/or critical habitat <br /> associated with the Platte River in Nebraska. <br /> 4 USFWS(2010) <br /> 5 CNHP(2015a) <br /> 6 CNHP(2015b) <br /> 2.2.1.4 State Listed Species <br /> CPW's threatened and endangered list includes state listed endangered and threatened species (CPW <br /> 2017). This list includes amphibians, birds, fish, and mammals. Table 4 summarizes the state listed <br /> species that were evaluated for presence within the Project and the status and the likelihood of <br /> occurrence in the study area. Species identified with a potential to occur in Table 4 are described in <br /> further detail below. Species of concern do not have any regulatory protection in Colorado, and impacts to <br /> these species will be minimized to the extent practicable using best management practices and <br /> avoidance measures. <br /> 10 Tucson South Sand and Gravel Mine—Brighton,Colorado <br />