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Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( focusable="false" ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

  • Due to a lapse in government funding, the majority of USGS websites will not be updated except to provide important public safety information. Websites displaying real-time water data will be updated with limited support. For more information, please see www.doi.gov/shutdown.

National aquifer codes

Queryables

  • geometry
  • id (string)
  • national_aquifer_name (string)