Wetland Assessment & Delineation
ECORP has extensive experience conducting assessments and delineations of wetlands and other waters of the United States throughout California, and other Western States. ECORP's biologists are experienced with a broad range of freshwater and coastal wetland communities. Wetland assessments are conducted to identify the presence and approximate extent of potentially jurisdictional waters of the United States (regulated under the federal Clean Water Act), and waters regulated by the California Department of Fish and Game. The U.S. Fish and Wildlife Service and NOAA are consulted under the federal Endangered Species Act regarding potential effects to federally-listed threatened and endangered species.
Data obtained through assessment investigations are often used during initial project opportunity/constraint analyses. Jurisdictional delineations precisely map and quantify the extent of wetlands and other waters of the United States subject to U.S. Army Corps of Engineers jurisdiction, and regulated under the federal Clean Water Act. Field investigations involve the collection of site-specific data, including soil characteristics, assessment of plant species composition, and evaluations of hydrologic conditions. Wetland delineations are conducted in accordance with the Corps of Engineers Wetlands Delineation Manual and the interim supplement to the Corps of Engineers Wetlands Delineation Manual: Arid West Region.
- Pre-investment due diligence analysis
- Wetland jurisdictional determinations
- Use of Global Positioning System (GIS) databases to map locations of sensitive resources
- Development of Geographic Information System (GIS) databases to catalog wetlands and other sensitive biological resources
- Preliminary assessment of regulatory requirements and project design consultation to assist in regulatory compliance