Permanent Closure Requirements for Underground Storage Tank with Single-Walled Components
All regulated USTs that do not meet the requirements of H&SC, section 25291(a)(1)-(6), must be permanently closed on or before December 31, 2025 in accordance with H&SC, section 25298, and the California Code of Regulations, title 23, chapter 16 (UST Regulations), section 2672.
A single-walled UST is either the tank and/or the connected piping which do not have secondary containment and a continuous leak detection system meeting the requirements of H&SC, section 25291(a)(1)-(6).
UST Systems which do not have secondary containment and a continuous leak detection system that have not been permanently closed by the regulatory due date are out of compliance, cannot be operated, and could be red tagged by the Unified Program Agency (UPA) or the State Water Resources Control Board (State Water Board), preventing fuel deliveries and dispensing. Penalties for systems out of compliance are $500 to $5,000 per day per underground storage tank.
Guidance for the Closure of Single-Walled UST Systems
In order to fully understand what is needed to get your UST in compliance, it is important to know the facts. The below guidance addresses common questions from UST owners and operators. This deck also specifies what actions are necesssaryfor USTs that do not meet necessary requirements.View Slide Deck
Funding for the Closure of Single-Walled UST Systems
Loans and grants, made available through the Replacing, Removing, or Upgrading Underground Storage Tanks (RUST) Program, can assist eligible small businesses with the costs necessary to remove, replace, or upgrade single-walled USTs. The RUST grants are limited year-to-year, therefore, it is best to utilize these resources as early as possible.Find Out How
List of Facilities with Single-Walled Tank and/or Piping
Below is a list of facilities with single-walled tanks and/or piping , which must be permanently closed on or before December 31, 2025. The facility list was compiled using data from the California Environmental Reporting System (CERS). The accuracy of the data has not been confirmed by the State Water Board.View List