Superfund Enterprise Management System (SEMS)

Superfund Enterprise Management System (SEMS) is published by U.S. Environmental Protection Agency. DatenUS uses it for: Superfund National Priorities List sites and contaminants. We load it on a schedule from the official source and show the date of the latest update on every page that uses it.

Official source: epa.gov

• Environment & Hazard Risk

Frequently asked questions

Is Superfund Enterprise Management System (SEMS) data free to use?

Yes. Superfund Enterprise Management System (SEMS) is a work of the U.S. government and is in the public domain. You can use it without a license; citing U.S. Environmental Protection Agency is good practice.

Who publishes Superfund Enterprise Management System (SEMS)?

U.S. Environmental Protection Agency publishes it. The official page is https://www.epa.gov/superfund/search-superfund-sites-where-you-live.

How current is Superfund Enterprise Management System (SEMS) on DatenUS?

The latest data we loaded is as of 10/28/2026. We check the source on a schedule and update the pages that use it.

How should I cite this data?

Cite the original publisher: Superfund Enterprise Management System (SEMS), U.S. Environmental Protection Agency, https://www.epa.gov/superfund/search-superfund-sites-where-you-live. If you used a DatenUS page, you can add its URL as the place you viewed it.