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4.4.2 Classification <br /> Under the Cowardin Classification System for Wetlands and Deepwater Habitats (Cowardin et <br /> al., 1979), Wetland D is in the Palustrine System, Emergent Persistent Wetland Class. <br /> 4.4.3 Vegetation <br /> Wetland D is dominated by a sparse cover of threesquare bulrush and a small amount of <br /> saltmeadow rush, saltgrass, and curly dock (Rumex crispus). Intermediate wheatgrass <br /> (Thinopyrum intermedium) and the noxious weed Canada thistle are common at the margins. <br /> 4.4.4 Hydrology <br /> Wetland D is a depression with clay-rich soil that contained standing water due to recent <br /> heavy rains. In addition, it interacts with the seasonally high groundwater table associated <br /> with the alluvial aquifer of the Big Thompson River. <br /> 4.4.5 Soils <br /> Pit 6 was dug within Wetland D in an area with 2 inches of surface water at the time of the <br /> delineation. The hydric soil had a redox dark surface (F6) with oxidized rhizospheres on living <br /> roots (Photo 10). <br /> 4.5 Wetland E <br /> 4.5.1 Location <br /> Wetland E is located near the Big Thompson River on an overbank deposit from the 2013 flood <br /> (Photo 11). Wetland E measures approximately 844 square feet (0.02 acre) (Photo 12). <br /> 4.5.2 Classification <br /> Under the Cowardin Classification System for Wetlands and Deepwater Habitats (Cowardin et <br /> al., 1979), Wetland E is in the Palustrine System, Emergent Persistent Wetland Class. <br /> 4.5.3 Vegetation <br /> Wetland E has an overstory of plains cottonwood and peachleaf willow (Salix amygdaloides) <br /> trees with a few sandbar willows (Solix exigua) in the shrub layer. The understory is dominated <br /> by reed canarygrass (Phalaris arundinacea) growing with meadow fescue (Festuca pratensis), <br /> Emory sedge, curly dock, teasel (Dipsacus fullonum), American yellowrocket (Barbarea <br /> orthocereas), and cheatgrass (Bromus tectorum). <br /> 4.5.4 Hydrology <br /> Wetland E is adjacent to the Big Thompson River and is influenced by the seasonally high <br /> groundwater associated with the river. <br /> 4.5.5 Soils <br /> Pit 10 was dug in a stand of reed canarygrass on the low terrace near the river. The hydric soil <br /> had a redox dark surface (F6) and oxidized rhizospheres on living roots. <br /> 4.6 Wetland F <br /> 4.6.1 Location <br /> Wetland F is located in the south-central portion of the project site in a slough that is an <br /> abandoned channel of the Big Thompson River (Photo 13). Wetland F measures <br /> approximately 11,238 square feet (0.26 acre). <br /> 4 <br />