WetCollect is a hosted software solution designed to expedite the data collection and processing of COE Wetland Determination Forms as prescribed in the Regional Supplements to the Corps of Engineers Wetland Delineation Manual.
With the advancement of wetland science, the U.S. Army Corps of Engineers (USACE) has released a new set of Regional Supplements to the 1987 Corps of Engineers (COE) Wetlands Delineation Manual. These manuals were created in order to accurately identify and describe the three required wetland parameters which can vary significantly from region to region. As stated by the COE, producing “Regional Supplement[s] is part of a nationwide effort to address regional wetland characteristics and improve the accuracy and efficiency of wetland-delineation procedures. Regional differences in climate, geology, soils, hydrology, plant and animal communities, and other factors are important to the identification and functioning of wetlands. These differences cannot be considered adequately in a single national manual.”
As part of the procedure for developing the new supplements, the United States and Territories were sorted by the COE into 10 Regions (Map of Regional Supplements). The 10 Regions are based upon differences and unique characteristics amongst the United States Department of Agriculture (USDA) Land Resource Regions (LRRs) and Major Land Resource Areas (MLRAs) (Conterminous U.S Map & AK, HI, the Caribbean, and the Pacific Basin Map).
Building upon the initial regionalization of the vegetation parameter and associated indicator status of species within the United States Fish and Wildlife Service (USFWS) National List of Vascular Plant Species That Occur in Wetlands (Region Map), the hydrology and hydric soil parameters have been modified to reflect regionalization within the Supplements. Wetland Hydrology Indicators, defined in accordance with guidance from the Environmental Laboratory at the USACE Engineer Research and Development Center (ERDC), and Hydric Soil Indicators, defined within The National Technical Committee for Hydric Soils (NTCHS) Field Indicators of Hydric Soils in the United States, are now based upon each indicator’s relative presence within particular LRRs and MLRAs. The COE Data Forms for each region are located within the following links to the Regional Supplements.