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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 91. Facility and Aboveground Storage Tank (AST) Regulation
11/21/2024

9VAC25-91-145. Performance standards for certain aboveground storage tanks located in the City of Fairfax.

A. The requirements of this section apply to aboveground storage tanks at facilities with an aggregate capacity of one million gallons or greater existing prior to January 29, 1992, and located in the City of Fairfax.

B. All ASTs altered as required by this section shall be strength tested before being returned to use in accordance with the applicable code or standard under which they were built.

C. All ASTs shall contain a release prevention barrier (RPB) either under or in the bottom of the tank. The RPB shall be capable of (i) preventing the release of the oil and (ii) containing or channeling the oil for leak detection. Existing elevated ASTs that are installed in containment areas meeting the requirements of an RPB or that are located within earthen containment dikes and are included in the daily and weekly inspections required by 9VAC25-91-130 B 5 shall be considered to be in compliance with the requirements of this section.

D. All ASTs altered as required by this section shall meet the applicable standards and requirements found in the Uniform Statewide Building Code or other standards approved by the department. Approval and all applicable permits shall be obtained from the local building official before altering ASTs.

E. Operators of facilities subject to this section shall meet the performance standards of this section no later than July 1, 2021.

Statutory Authority

§§ 62.1-44.15, 62.1-44.34:15, 62.1-44.34:15.1, and 62.1-44.34:19.1 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 31, Issue 26, eff. November 1, 2015; amended, Virginia Register Volume 39, Issue 5, eff. November 23, 2022.

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