9VAC25-580-30: Installation requirements for partially excluded UST systems

Owners and operators must install an UST system listed in subsection C of 9VAC25-580-20 storing regulated substances (whether of single-wall or double-wall construction) that meets the following requirements:

1. Will prevent releases due to corrosion or structural failure for the operational life of the UST system;

2. Is cathodically protected against corrosion, constructed of noncorrodible material, steel clad with a noncorrodible material, or designed in a manner to prevent the release or threatened release of any stored substance; and

3. Is constructed or lined with material that is compatible with the stored substance.

Note: The following codes of practice may be used as guidance for complying with this section:

(a) NACE International Standard Practice SP0285, External Corrosion Control of Underground Storage Tank Systems by Cathodic Protection;

(b) NACE International Standard Practice SP0169, Control of External Corrosion on Underground or Submerged Metallic Piping Systems;

(c) American Petroleum Institute Recommended Practice 1632, Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems; or

(d) Steel Tank Institute Recommended Practice R892, Recommended Practice for Corrosion Protection of Underground Piping Networks Associated with Liquid Storage and Dispensing Systems.