The Corps of Engineers receives thousands of requests each year to perform wetland delineations for potential applicants for permits under Section 404 of the Clean Water Act.
Due to limited staff and resources, response time can be several months or longer.
Preliminary delineations, which meet our minimum standards may then be submitted to the District for review and verification.
2012 National Wetland Plant List (NWPL) - The 2012 NWPL should be used in any wetland delineations performed after June 1, 2012.
2013 National Wetland Plant List Fact Sheet - 22 July 2013