Underground Storage Tanks (USTs)

UST Mission & Program

ENIPC UST Program's mission is to promote and preserve Tribal environments and investments. The OETA UST Program assists Pueblos and Tribes with tank and related concerns to enhance tribal values, cultures, lands and health. 
The Resource Conservation and Recovery Act (RCAC) establishes the authority to regulate underground storage tanks (USTs). A UST system is defined as a tank and any underground piping connected to the tank that has at least 10% of its combined volume underground. This definition includes the tank, connected underground piping, any underground equipment, such as valves and pumps and containment systems.

Many Pueblos and tribes operate gas stations which provide opportunities for economic development and services to the community. USTs and piping are buried at gas stations and contain fuel until pumped into your vehicle.

Our goals are to increase public safety and environmental health by assisting tribal UST facilities improve leak detection and prevention, as well as identifying abandoned USTs and facilitating communication among tribal UST stakeholders.

We offer compliance assistance, training, workshops, assist with opening and closing UST facilities and much more.

Why Monitor USTs?

Because USTs are underground, it is easy to forget about them. Just one gallon of gasoline can contaminate up to five million gallons of drinking water!

There are about 200 USTs on tribal lands in New Mexico and millions of USTs nationwide.

Compliance assistance providers help regulate communities and businesses comply with environmental laws through one-to-one counseling, online resource centers, fact sheets, guides and training.

What is Compliance Assistance?

Compliance assistance means helping businesses, federal facilities, local governments and tribes meet their environmental regulatory requirements.

To protect health and water, USTs are regulated by environmental laws. USTs are operating in compliance when documents are maintained showing tanks, lines and equipment are properly installed, registered, insured, protected from corrosion, regularly monitored, and tested.

We offer assistance with record keeping systems, on and off-site training, and informative walk-through visits so your tribal UST facility is prepared for inspections and operating safely.

Compliance assistance is most effective when used in an integrated strategy combining compliance monitoring (inspections), compliance incentives and auditing (self-disclosure policies), and enforcement.
  • Compliance with general requirements
  • Spill and overfill protection
  • Release detection system
  • Corrosion protection system
  • Reporting and record keeping
  • Tank closure system



Compliance Training for Owners/Operators
ENIPC-OETA UST program offers training opportunities throughout the State at various locations in addition to on-site training at tribal gas stations.
Trainings include:
  • Federal Requirements for USTs
  • Reporting and Recordkeeping
  • Financial Responsibility
  • UST Operations and Maintenance
  • Compliance Issues
  • On-Site Walk through Demostrations
None currently scheduled. Contact us to set one up.

Leonard Sabatino 505-692-8772

Class A & B Exam

The newly-developed online exam for class A and B designated underground storage tank (UST) operators is now available on EPA’s website https://www.epa.gov/ust/class-a-and-class-b-ust-operator. There you will find out how to access the exam and also, you can access EPA’s guidance documents, which can help designated operators prepare for and complete the exam.

The EPA developed this easily accessible, free exam to help class A and B designated operators in Indian country meet the 2015 UST requirement that designated operators demonstrate knowledge, also known as the Operator Training requirement. October 13, 2018 is the deadline for designated operators to verify compliance with this requirement.

Please share widely with others who might benefit from accessing and using the exam. After passing the exam, class A and B operators can print a certificate which can serve as proof they possess a level of knowledge about the UST systems they operate, and which they could show to an UST inspector. Striving to ensure that designated operators are knowledgeable about UST requirements will help keep our environment safe from underground storage tank releases.

UST Closure Info

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Tank Installation

UST Compliance Records Binder

The following documents can be used to store and maintain all UST records in one place. Maintaining binders monthly is recommended. 
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Contains suspected release documentation, incident response & emergency release guide:
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Includes UST system description and maintenance information:
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Contains information on safe UST practices:
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Includes final revised UST regulations:
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First walk through inspection should be completed before October 13, 2018:
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