Northwest Environmental Training Center (NWETC)

Wetlands Delineation


*This course includes both classroom and field activities. This course focuses on use of the 1987 Corps of Engineers Wetland Delineation Manual and updated regional supplements as applied in the field and how to make a wetland call. This course combines 1½ days of classroom lecture with a one-half day field exercise to give attendees the basic knowledge and experience they will need to properly delineate and document wetlands. Recent changes in wetland delineation protocols can have a positive effect on land use and in some cases change the wetland boundary of one delineated using the 1987 Corps of Engineers Wetland Delineation Manual. In the classroom on day 1 and the first part of day 2, attendees will learn how to classify wetlands according to Cowardin and Brinson, identify the key criteria associated with wetlands (hydrophytic vegetation, hydric soils, and wetland hydrology), and how these criteria are used to define the wetland boundaries. This course will also cover relevant


  • Introduction to Wetlands
  • Clean Water Act and other regulations
  • Wetland Classification
  • Wetland Delineation Methods
  • 1987 Corps of Engineers Wetland Delineation Manual
  • Regional Supplement
  • Wetland Field Data Forms
  • Wetland Indicators
  • Hydrophytic Vegetation
  • Wetland Hydrology
  • Hydric Soils
  • Wetland Jurisdiction
  • Field Exercise

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