Wetland Delineation Information

1. Regulatory Guidance and Resources:

• EPA Wetlands Page: EPA - Wetlands

  • Provides an overview of wetlands, their importance, and regulations under the Clean Water Act.

• USACE Regulatory Program U.S. Army Corps of Engineers Regulatory Program:

  • Details on the permitting process, including information on wetland delineations and jurisdictional determinations.

• National Wetlands Inventory (NWI): US Fish & Wildlife Service - NWI

  • Offers maps and tools to identify wetlands and other aquatic resources across the U.S.

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2. Technical Resources:

• Corps of Engineers Wetlands Delineation Manual: 1987 Wetlands Delineation Manual

  • The primary technical manual for conducting wetland delineations in the U.S.

• Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Regional Supplements

  • Supplements to the 1987 manual, tailored for specific regions of the U.S., providing additional guidance based on regional characteristics.

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3. Mapping and Data Tools:

• National Wetlands Mapper: Wetlands Mapper

  • An interactive map that provides access to wetland and deepwater habitat data.

• USDA Web Soil Survey: Web Soil Survey

  • A tool that helps identify soil types and their suitability for wetland delineations, which is crucial for determining hydric soils.

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4. Training and Certification:

• Wetland Training Institute (WTI): Wetland Training Institute

  • Offers courses and certifications for professionals in wetland delineation and management.

• Society of Wetland Scientists (SWS): Society of Wetland Scientists

  • A professional association that provides resources, training, and certification for wetland professionals.

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5. Case Studies and Reports:

• USGS Wetland Case Studies: USGS Wetland and Aquatic Research Center

  • Includes case studies on wetland research and restoration efforts.

• State or Regional Environmental Agencies:

  • Many states have specific guidance and case studies for wetland delineation. For example, California’s Wetland and Riparian Area Protection Policy offers resources specific to that state.

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6. Legal and Compliance Resources:

• Clean Water Act Compliance Assistance: EPA Compliance Assistance

  • Guidance on how to comply with the Clean Water Act, particularly regarding wetlands.

• Wetlands Permitting Information by State: State Wetland Programs

  • A resource from the Association of State Wetland Managers (ASWM) that provides links to state-specific wetland permitting information.

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