Resources
Your hub for underground storage tank information, environmental data, and regulatory resources.
Browse All States
Explore UST facilities and LUST releases across all 50 states and territories, organized by region.
UST & LUST Glossary
Key terms and definitions for underground storage tanks, remediation, compliance, and environmental assessments.
Interactive Map
View all UST facilities and LUST release sites on an interactive, searchable map of the United States.
About UST Map
Learn about our data sources, methodology, EPA attribution, and the purpose of this directory.
EPA UST Program↗
Official EPA underground storage tank program page with regulatory information, guidance, and data.
EPA UST Finder↗
The original EPA UST Finder tool — the primary data source for UST Map.