An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Frequently Asked Questions on the Update to the ATSDR Policy Guideline for Dioxins and Dioxin-Like Compounds in Residential Soil

In October 2008, the Agency for Toxic Substances and Disease Registry (ATSDR) updated its policy guideline for dioxin and dioxin-like compounds in residential soil. Refer to the frequent questions attachment (below) for additional details and information.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.