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 This website is no longer updated and links to external websites and some internal pages may not work.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

Underground Storage Tanks (USTs)

Petroleum Vapor Intrusion Database

PVI Database (ZIP)(1 MB)
This is the complete PVI database file and presents data from 74 sites, comprised of 69 sites in 10 states, 4 sites in Canada, and 1 site in Australia. The Microsoft Access database must be unzipped after download.

Australian PVI Database (XLSX)(1 MB)
This file contains data for 124 sites in Australia (6,000 records). Analysis of these data are presented in Appendix C of the PVI Database Report below.

  • Australian PVI Data Export (XLSX)(317 K)
    This file contains 1,080 paired measurements of petroleum hydrocarbon soil vapor and groundwater source concentrations from 124 sites.

Supporting Documentation

The technical report below evaluates the petroleum vapor intrusion database.

For assistance with accessibility for the PDFs, please email Sharon Fredericks (

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