In a wetland and water delineation, we evaluate your Site for presence of regulated wetlands and/or jurisdictional waters. This typically involves a desktop reconnaissance, where we review topographic, soil, floodplain and wetland maps, as well as aerial photography and other accessible Site information to determine the presence of potential jurisdictional wetlands and/or waters on the Site. We then visit your Site to ground-verify our findings and formally delineate any potentially regulated wetlands and waters.
A wetland is regulated if it meets certain criteria for vegetation, soil, and hydrology characteristics. Formal wetland delineation involves:
- Identifying plants in and around the suspected wetland area
- Digging a small soil pit to evaluate soils for hydric features
- Observing local water sources and/or changes in topography
A stream is regulated if it is tributary to a Traditional Navigable Waterway and exhibits other characteristics, such as ordinary high water mark that indicates flowing water significant enough to leave a mark on the landscape. Formal delineation of waters involves:
- Walking your Site to look for signs of flowing water
- Following stream channels upstream to find the extent of jurisdiction.
Wetlands and waters are regulated by the Clean Water Act. If you are planning any construction or development on your Site, such as a mechanical vegetation clearing, placing fill materials, excavation, bridges, culverts, or stream crossings that will impact a jurisdictional water or wetland it will require a permit form the U.S. Army Corps of Engineers and/or your state environmental agency. This also includes temporary stream crossings.