North Carolina Administrative Code › Title 15A - Environmental Quality › Chapter 02 - Environmental Management › Subchapter N - CRITERIA AND STANDARDS APPLICABLE TO UNDERGROUND STORAGE TANKS › Section .0900 - PERFORMANCE STANDARDS FOR UST SYSTEM OR UST SYSTEM COMPONENT INSTALLATION OR REPLACEMENT COMPLETED ON OR AFTER NOVEMBER 1, 2007 › Section 02N .0901 - GENERAL REQUIREMENTS

Current through Register Vol. 39, No. 2, July 15, 2024
(a) This Section
				  applies to a UST system or UST system component installation or replacement
				  completed on or after November 1, 2007.
(b) A UST system or UST system component
				  shall not be installed or replaced within an area defined in Rule .0301(b) of
				  this Subchapter.
(c) A tank shall
				  meet the requirements for secondary containment including interstitial release
				  detection monitoring in accordance with this Rule.
(d) All UST system components other than
				  tanks including connected piping, underground ancillary equipment, dispensers,
				  line leak detectors, submersible pumps, spill buckets, siphon bars, and remote
				  fill pipes shall meet the requirements for secondary containment including
				  interstitial release detection monitoring in accordance with this Rule. Spill
				  buckets replaced on tanks installed prior to November 1, 2007 may comply with
				  the interstitial monitoring requirements described in Paragraph (k) of this
				  Rule. Gravity-fed vertical fill pipes, vapor recovery, vent lines, and
				  containment sumps are excluded from the secondary containment requirements in
				  this Rule.
(e) A UST system design
				  is required for installation or replacement of a UST system, UST, or connected
				  piping. If required by G.S. 89C, UST system designs must be prepared by a
				  Professional Engineer licensed by the North Carolina Board of Examiners for
				  Engineers and Surveyors.
[Note: The North Carolina Board of Examiners for Engineers
					 and Surveyors has determined via letter dated December 20, 1993, that
					 preparation of a UST system design constitutes practicing engineering under
					 G.S. 89C.]
(f) If required
				  by the equipment manufacturer, persons installing, replacing or repairing UST
				  systems or UST system components must be trained and certified by the equipment
				  manufacturer or the equipment manufacturer's authorized representative to
				  install, replace or repair such equipment.
(g) UST systems or UST system components
				  shall be installed, tested, operated, and maintained in accordance with the
				  manufacturer's specifications and the codes of practice, and industry standards
				  described in Rule .0907 of this Section.
(h) UST systems or UST system components
				  shall not be installed or replaced in areas where they will be in contact with
				  contaminated soil or free product.
(i) Secondary containment systems shall be
				  designed, constructed, installed and maintained to:
(1) detect the failure of the inner wall and
				  outer wall for UST system components with double wall construction;
(2) contain regulated substances released
				  from a UST system until they are detected and removed;
(3) prevent a release of regulated substances
				  to the environment outside of the containment system;
(4) direct releases to a monitoring point or
				  points;
(5) provide a release
				  detection monitoring device or monitoring method for the interstitial
				  space;
(6) on an uninterrupted
				  basis, monitor the inner and outer walls of double-walled tanks for breaches of
				  integrity using pressure, vacuum or hydrostatic monitoring methods or monitor
				  the interstitial space of double-walled tanks for releases using an electronic
				  liquid detecting sensor method along with periodic testing as specified in Rule
				  .0903(f) of this Section;
(7) on an
				  uninterrupted basis, monitor the inner and outer walls of double-walled
				  non-tank components for breaches of integrity using pressure, vacuum, or
				  hydrostatic methods, or monitor a non-tank component for releases by using an
				  electronic liquid detecting sensor placed in a containment sump and in the
				  interstitial space of a double-walled spill bucket along with periodic
				  integrity testing as specified in Rules .0904(f), .0905(g) and .0906(e) of this
				  Section; and
(8) provide a printed
				  record of release detection monitoring results and an alarm history for each
				  month.