1. 1. Alternatives allowed. All existing UST systems must comply with one of the following requirements:

   1. a. New UST system performance standards under 9VAC25-580-50;
   2. b. The upgrading requirements in subdivisions 2, 3, and 4 of this section; or
   3. c. Closure requirements under Part VII of this chapter, including applicable requirements for corrective action under Part VI (9VAC25-580-230 et seq.) of this chapter.

2. 2. Tank upgrading requirements. Steel tanks must be upgraded to meet one of the following requirements in accordance with a code of practice developed by a nationally recognized association or independent testing laboratory:

   1. a. Interior lining. Tanks upgraded by internal lining must meet the following:

      1. (1) The lining was installed in accordance with the requirements of 9VAC25-580-110; and
      2. (2) Within 10 years after lining, and every five years thereafter, the lined tank is internally inspected and found to be structurally sound with the lining still performing in accordance with original design specifications. If the internal lining is no longer performing in accordance with original design specifications and cannot be repaired in accordance with a code of practice developed by a nationally recognized association or independent testing laboratory, then the lined tank must be permanently closed in accordance with Part VII of this chapter.

   2. b. Cathodic protection. Tanks upgraded by cathodic protection must meet the requirements of 9VAC25-580-50 1 b (2), (3), and (4) and the integrity of the tank must have been ensured using one of the following methods:

      1. (1) The tank was internally inspected and assessed to ensure that the tank was structurally sound and free of corrosion holes prior to installing the cathodic protection system;
      2. (2) The tank had been installed for less than 10 years and is monitored monthly for releases in accordance with subdivisions 4 through 9 of 9VAC25-580-160;
      3. (3) The tank had been installed for less than 10 years and was assessed for corrosion holes by conducting two tightness tests that meet the requirements of subdivision 3 of 9VAC25-580-160. The first tightness test must have been conducted prior to installing the cathodic protection system. The second tightness test must have been conducted between three and six months following the first operation of the cathodic protection system; or
      4. (4) The tank was assessed for corrosion holes by a method that is determined by the department to prevent releases in a manner that is no less protective of human health and the environment than subdivisions 2 b (1), (2), and (3) of this section.

   3. c. Internal lining combined with cathodic protection. Tanks upgraded by both internal lining and cathodic protection must meet the following:

      1. (1) The lining was installed in accordance with the requirements of 9VAC25-580-110; and

      2. (2) The cathodic protection system meets the requirements of subdivisions 1 b (2), (3), and (4) of 9VAC25-580-50.

         1. (a) American Petroleum Institute Publication 1631, Recommended Practice for the Interior Lining of Existing Steel Underground Storage Tanks;
         2. (b) National Leak Prevention Association Standard 631, Spill Prevention, Minimum 10 Year Life Extension of Existing Steel Underground Tanks by Lining Without the Addition of Cathodic Protection;
         3. (c) National Association of Corrosion Engineers Standard RP-02-85, Control of External Corrosion on Metallic Buried, Partially Buried, or Submerged Liquid Storage Systems; and

         4. (d) American Petroleum Institute Recommended Practice 1632, Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems.

            NOTE: The following codes of practice may be used to comply with the periodic lining inspection requirement in subdivision 2 a (2) of this section:

         5. (a) American Petroleum Institute Recommended Practice 1631, Interior Lining and Periodic Inspection of Underground Storage Tanks;
         6. (b) National Leak Prevention Association Standard 631, Chapter B Future Internal Inspection Requirements for Lined Tanks; or
         7. (c) Ken Wilcox Associates Recommended Practice, Recommended Practice for Inspecting Buried Lined Steel Tanks Using a Video Camera.

         NOTE: The following historical codes of practice were listed as options for complying with subdivision 2 of this section:

3. 3. Piping upgrading requirements. Metal piping that routinely contains regulated substances and is in contact with the ground must be cathodically protected in accordance with a code of practice developed by a nationally recognized association or independent testing laboratory and must meet the requirements of subdivisions 2 b (2), (3) and (4) of 9VAC25-580-50.

   NOTE: The codes of practice listed in the note following subdivision 2 b of 9VAC25-580-50 may be used to comply with this requirement.

4. 4. Spill and overfill prevention equipment. To prevent spilling and overfilling associated with product transfer to the UST system, all existing UST systems must comply with UST system spill and overfill prevention equipment requirements specified in subdivision 3 of 9VAC25-580-50.
5. 5. Release detection. Release detection shall be provided in accordance with Part IV (9VAC25-580-130 et seq.) of this chapter.

Owners and operators must permanently close in accordance with Part VII (9VAC25-580-310 et seq.) of this chapter any UST system that does not meet the new UST system performance standards in 9VAC25-580-50 or has not been upgraded in accordance with subdivisions 2, 3, and 4 of this section. This does not apply to previously deferred UST systems described in Part X (9VAC25-580-380 et seq.) of this chapter and where an upgrade is determined to be appropriate by the department.

Owners and operators must obtain a permit and the required inspections in accordance with the provisions of the Virginia Uniform Statewide Building Code (§ 36-97 et seq. of the Code of Virginia).

A permit from the building official must be obtained prior to upgrading any UST system. No upgraded UST system shall be placed into use unless and until the system is inspected in accordance with the provisions of the Virginia Uniform Statewide Building Code (§ 36-97 et seq. of the Code of Virginia).

In the case of state-owned facilities, the Department of General Services shall function as the building official in accordance with § 36-98.1 of the Code of Virginia.

In the case of federal facilities the building official must be contacted. Owners and operators must obtain a permit and the required inspections in accordance with the provisions of the Virginia Uniform Statewide Building Code (§ 36-97 et seq. of the Code of Virginia).

Statutory Authority

§§ 62.1-44.15 and 62.1-44.34:9 of the Code of Virginia; 42 USC § 6901 et seq.; 40 CFR Parts 280 and 281.

Historical Notes

Derived from VR680-13-02 § 2.2, eff. October 25, 1989; amended, Virginia Register Volume 34, Issue 1, eff. January 1, 2018; Errata, 34:4 VA.R. 503 October 16, 2017; amended, Virginia Register Volume 39, Issue 5, eff. November 23, 2022.