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�►, DPG Site <br /> ERC <br /> Aquatic Resource Delineation Report <br /> depicted on the Aquatic Resource Delineation Maps dated May 8, 2019 are provided as Appendix A. <br /> Wetland Determination data sheets are provided in Appendix B. <br /> 4.0 EXISTING CONDITIONS <br /> 4.1 LANDSCAPE SETTING <br /> The study area is situated within the Great Plains ecoregion (Bailey 1976) at an approximate elevation of <br /> 4,600 feet above mean sea level (AMSL). The vicinity of the study area is comprised largely agricultural <br /> land with pockets of wooded areas and a single-family dwelling. Land neighboring the study area includes <br /> the South Platte River and Mitani-Tokuyasu State Wildlife Area to the east; Holly Avenue and the South <br /> Platte River to the south;the Cache la Poudre to the north;Weld County Parkway to the west. <br /> The landscape within the study area is characterized by the Upland Grassland and Ruderal Herbaceous, <br /> Cultivated Cropland,Western Cattail Marsh, and Western Great Plains Riparian Woodland and Shrubland <br /> vegetation (Comer et al. 2003). The Western Great Plains Riparian Woodland and Shrubland vegetation <br /> encompasses the aquatic resource habitats near the South Platte and Cache la Poudre Rivers (Aquatic <br /> Resource H), and in the central portion of the study area north of the single-family dwelling.The aquatic <br /> resource habitats exhibiting Western Cattail Marsh vegetation occur in topographic depressions (Aquatic <br /> Resource A and B)within the north central portion of the study area. The majority of the study area has <br /> been in recent agricultural production.The Cultivated Cropland vegetation community occurs throughout <br /> the eastern, western, and southern portions of the study area. The Upland Grassland and Ruderal <br /> Herbaceous vegetation community was observed abutting the Cache la Poudre River riparian area to the <br /> south. <br /> The USGS topographic map shows a perennial stream identified as Cache le Poudre River (Aquatic <br /> Resource H) in sections of the northern portion of the study area.This feature was investigated in the field <br /> and the stream channel and associated wetland were delineated. Additionally, an unnamed intermittent <br /> stream depicted flowing generally east in an oxbow pattern to and from the Cache la Poudre River in the <br /> north central portion of the study area. The unnamed intermittent oxbow stream was evaluated in the <br /> field and found to be mostly dominated by upland vegetation with pockets of wetlands(Aquatic Resources <br /> C, D, E,and F). <br /> 4.2 AQUATIC RESOURCES <br /> A total of 18.37 acres of aquatic resources were delineated by ERC within the study area. Delineated <br /> aquatic resources were classified according to physical and biological characteristics using the <br /> Classification of Wetlands and Deepwater Habitats of the United States (Cowardin Classification System) <br /> (Cowardin et al. 1979). Within the study area, wetland habitat types were classified based on field <br /> evaluation and are summarized below in Table 1. Summary of Aquatic Resources Delineated within the <br /> Study area. <br /> A description of the aquatic resource habitat types is provided as follows. Refer to Table 2 for a list of <br /> vegetation identified within the study area (Lichvar et al. 2016). The Aquatic Resource Delineation Map <br /> 5 <br />