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 www.epa.gov. 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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

Vapor Intrusion

Technical Guide For Addressing Petroleum Vapor Intrusion At Leaking Underground Storage Tank Sites

This document is intended for use at any site subject to petroleum contamination from underground storage tanks where vapor intrusion may be of potential concern. It is applicable to both residential and non-residential settings.

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

Technical Guide For Addressing Petroleum Vapor Intrusion At Leaking Underground Storage Tank Sites (PDF)(129 pp, 3 MB)