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Underground Storage Tanks (USTs)

Underground Storage Tanks (USTs) Program in Indian Country

EPA implements the underground storage tank (UST) program in Indian country. We provide support to tribal governments to prevent and clean up petroleum releases from USTs.

Basic Information

EPA works to improve human health and the environment in Indian country by working with tribes to:

  • Prevent releases from USTs
  • Ensure releases are cleaned up
  • Collaborate and strengthen the relationship between EPA and tribes

The UST program in Indian country includes marketers and nonretail facilities that have USTs.  Marketers include retail facilities such as gas stations and convenience stores that sell petroleum products.  Non-retail facilities include those that do not sell petroleum products, but may rely on their own supply of gasoline or diesel for taxis, buses, limousines, trucks, vans, boats, heavy equipment, or a wide range of other vehicles. Of the more than 560 federally recognized tribes about 200 have federally-regulated underground storage tanks on their lands. Of those 200 tribes, over half have 10 or fewer active underground storage tanks. About 20 tribes have 30 or more underground storage tanks.

To learn more about EPA's tribal programs, visit EPA's American Indian Environmental Office.

Training Resources for Managing USTs in Indian Country

Providers of Tribal UST Program Training

EPA supports Tribal UST Program training through the following organizations:

Prevention Training Resources

For more information on compliance assistance, go to Resources for Owners and Operators.

Cleanup Training Resources

For more information on cleaning up leaking underground storage tanks, go to Cleaning Up UST Releases.

Publications Related to Underground Storage Tanks in Indian Country

Managing Your USTs in Indian Country
Owners and operators of USTs on tribal lands must comply with federal UST regulations. EPA developed a series of compliance assistance brochures that provide best management practices to help UST owners and operators in Indian country comply.

Report to Congress on the UST Program in Indian Country
On August 8, 2007, EPA issued the Indian country USTs Report to Congress, which discusses the considerable progress EPA and tribes have made by working together to prevent and cleanup releases from USTs in Indian country as well as the challenges remaining and work to be accomplished.

Strategy for an EPA/Tribal Partnership
EPA collaborated with its tribal partners to develop this tribal strategy in 2006. The tribal strategy serves as a foundation of future tank work and collaboration between EPA and tribes.

UST System Compatibility with Petroleum-Biofuel Blends:  A Brief Guide to the 2015 Federal UST Regulations for Owners and Operators of USTs Located on Tribal Lands
This tri-fold brochure provides UST owners and operators on tribal lands with compatibility requirements in the 2015 federal UST regulation when storing gasoline blends containing greater than 10 percent ethanol or diesel blends containing greater than 20 percent biodiesel.

For more publications on underground storage tanks visit: Publications Related to Underground Storage Tanks.