Leaking UST Cleanup Compilation Map

The national UST program has cleaned up over 505,000 leaking UST (LUST) releases in its history, and approximately 60,000 LUST releases remain as of March 2022.

The ASTSWMO LUST Task Force has compiled information and lessons learned from across the nation for several factors that affect cleanup as a resource for States and Territories to help address the remaining LUST releases.

2021 Annual State Fund Survey/Tanks Update

The Vermont Department of Environmental Conservation, in partnership with ASTSWMO, conducts a survey of all State Financial Assurance Fund programs and provides results on their design characteristics, funding, and fund activity each year. Summary and results from 2021 are provided below.

Note: The 2021 Survey tables are the result of an abridged version of the State Fund Survey that differs from the surveys sent in recent years. ASTSWMO is in the process of updating the data collection and reporting processes to create a new “Annual Tanks Update,” which will include information from release prevention, remediation, and Fund and financial assurance programs. The new project will replace the Annual State Fund Survey

Abridged Annual Tanks Update – 2021

For archives of previous State Fund Surveys visit the Annual State Fund Survey Archives page.

Webinar – ASTSWMO and Tanks Subcommittee 101

Are you interested in learning more about ASTSWMO’s organization including our mission, membership, and activities? What about the mission and goals of the Tanks Subcommittee? This webinar provides an introduction to the Association – our structure what we do, who we represent – and information about the Tanks Subcommittee including their membership, activities, and benefits of participating on an active Task Force.

2021 ASTSWMO Annual Meeting Presentations


UST Open Bermed Containment Systems at Retail Fueling Facilities

This position paper addresses open bermed containment systems at commercial retail fuel facilities that are used to meet the spill prevention equipment requirements for underground storage tanks (USTs) outlined in 40 CFR 280.20(c), and replaces ASTSWMO’s July 2016 position on these systems. The new document clarifies that ASTSWMO’s position addresses open bermed containment systems at retail fueling facilities, includes additional details about the construction and design of spill buckets vs open bermed containment systems, and new and updated references and resources.

2021 ASTSWMO Mid-Year Webinar Recordings


EPA OUST Briefing on Proposed Rulemaking – E15 and Compatibility with USTs

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On January 19, 2021, EPA published a proposed rulemaking in the Federal Register to modify E15 dispenser labels and revise UST system compatibility requirements. A summary of the proposal and links to the notice and Federal Register are available here.
During this meeting on February 16, 2021, ASTSWMO hosted leadership from EPA OUST to provide a short briefing on the proposed rulemaking – focusing on the UST provisions.

2020 ASTSWMO Annual Webinar Recordings


EPA’s UST Finder: National UST and Releases Web Map – Webinar

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The U. S. Environmental Protection Agency (EPA), along with ASTSWMO, developed UST Finder, a flexible web map application containing a comprehensive, state-sourced national map of underground storage tank (UST) and leaking UST (LUST) data. Using publicly available information, UST Finder provides the attributes and locations of active and closed USTs, UST facilities, and LUST sites from states as of 2018-2019. UST Finder contains information about proximity of UST facilities and LUST sites to: surface and groundwater public drinking water protection areas; estimated number of private domestic wells and number of people living nearby; and flooding and wildfires. UST Finder can import additional data layers and export UST facility and LUST site information for use by other software programs.

During this webinar Alex Hall and Fran Kremer from EPA’s Office of Research and Development introduced UST Finder to participants and highlighted the web application’s features and available data. UST Finder is accessible to the public here.