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Are there specific regulations for underground tanks by state?

April 5, 2026

Quick Answer

Yes, regulations for underground propane tanks vary by state, and they are typically governed by local and state environmental protection agencies, such as the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA), as well as individual state codes and standards.

State Regulations Overview

Underground propane tanks are subject to specific regulations that vary by state. For instance, the U.S. Environmental Protection Agency (EPA) requires that underground storage tanks (USTs) be registered and inspected regularly to prevent leaks and maintain environmental safety. In California, USTs are regulated by the California State Water Resources Control Board, which requires tank owners to submit a detailed tank installation plan and perform regular leak detection tests.

Underground Propane Tank Installation Requirements

When installing an underground propane tank, several key requirements must be met. For example, in Texas, the Texas Commission on Environmental Quality (TCEQ) requires that all USTs be at least 10 feet away from any building or other tank, and that the tank be installed above the water table and on a stable base. In addition, the tank owner must provide a spill response plan and keep detailed records of tank inspections and maintenance.

Specific State Tank Standards

In Colorado, underground propane tanks are regulated by the Colorado Department of Public Health and Environment, which requires that all USTs be installed according to the Colorado UST Code. The code specifies that tanks must be at least 10 feet away from any building or other tank, and that the tank owner must perform regular inspections and maintenance to ensure the tank’s integrity. In Illinois, the Illinois Environmental Protection Agency (IEPA) requires that all USTs be registered and inspected regularly to prevent leaks and maintain environmental safety.

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