U.S. Environmental Protection Agency


This interactive web-based application draws environmental data from publicly available federal, state, and local GIS sources and web services and provides immediate screening of environmental assessment indicators for a user-defined area of interest. This information includes data on regulated facilities, demographics, historic places, threatened and endangered species, wetlands, and other topics. These features contribute to a streamlined review process that potentially raises important environmental issues at the earliest stages of project development.

NEPAssist Homepage


  • Ingests data from user-defined web services
  • Creates customizable reports and analyses that can be saved as Excel or PDF files
  • Integrates with U.S. Fish and Wildlife Service IPaC tool

Tool Screenshots

Tell us how you use this resource.

Help us build better tools and services by sharing your story with us.