Current through Register Vol. 56, No. 18, September 16, 2024
(a) Any substantial modification or upgrade to an
underground storage tank system, excluding field constructed tanks and airport
hydrant systems regulated pursuant to N.J.A.C. 7:14B-4A, shall meet the following
requirements:
1. The permit requirements at
N.J.A.C. 7:14B-10, prior to initiating a substantial modification or upgrade to an
underground storage tank system;
2. The
underground storage tank system performance standards under N.J.A.C.
7:14B-4.1; and
3. The requirements in sections (b) through (g)
below.
(b) Any substantial
modification or upgrade to a steel or fiberglass tank system shall meet the
following requirements, as applicable, in accordance with a code of practice
developed by a nationally recognized association or independent testing laboratory:
1. A tank may be upgraded by internal lining if
the lining is installed in accordance with the requirements of
N.J.A.C.
7:14B-5.4, and provided the internal
inspection determines the tank is structurally sound. A steel tank shall have
sufficient wall thickness (minimum 1/8 inch or 0.32 centimeter), and cathodic
protection in accordance with
N.J.A.C.
7:14B-4.1(a)1ii(2), (3),
and (4).
i. Within 10 years after installing the
lining, and every five years thereafter, the lined tank shall be internally
inspected and found to be structurally sound with the lining still performing in
accordance with original design specifications.
ii. If the internal inspection reveals that the
tank is not structurally sound, or the internal lining is not performing in
accordance with original design specifications and cannot be repaired according to a
code of practice developed by a nationally recognized association or independent
testing laboratory, the lined tank shall be closed in accordance with
N.J.A.C. 7:14B-9.2.
iii. For a steel tank upgraded by both internal
lining and cathodic protection for corrosion protection, where the internal lining
is failing and cannot be repaired, the tank shall not require closure pursuant to
(b)1ii above, provided the owner and operator demonstrate that the UST system
construction continues to prevent the release or threatened release of any stored
regulated substance and the cathodic protection is maintained and operated according
to
N.J.A.C. 7:14B-5.2.
Demonstration shall be made by providing the Department a permit
application in accordance with N.J.A.C. 7:14B-10, and records indicating, at a
minimum:
(1) The tank installation
date;
(2) The installation date and
purpose for the internal lining upgrade, and records of the internal inspection(s)
required pursuant to (b)1i above;
(3)
The installation date of the cathodic protection system upgrade, documentation of
operation of the cathodic protection system maintained pursuant to
N.J.A.C.
7:14B-5.6(a) 1ii and
documentation of the method used to ensure tank integrity required pursuant to (b)2
below; and
(4) Evidence of tank
integrity, such as precision tank test results.
2. Any substantial modification or upgrade
involving cathodic protection shall meet the requirements of
N.J.A.C.
7:14B-4.1(a) 1ii(2),
(3), and (4) and the integrity of the tank is ensured using one of the following
methods:
i. The tank is internally inspected and
assessed to ensure that the tank is structurally sound, has sufficient wall
thickness (minimum 1/8 inch or 0.32 centimeter) for steel tanks), and is free of
corrosion holes prior to installing the cathodic protection system;
ii. The tank has been installed for less than 10
years and is monitored monthly for releases in accordance with 7:14B-6.5(a)4 through
8;
iii. The tank has been installed for
less than 10 years and is assessed for corrosion holes by conducting two tightness
tests that meet the requirements of 7:14B-6.5(a)3. The first tightness test shall be
conducted prior to installing the cathodic protection system. The second tightness
test shall be conducted between three and six months following the first operation
of the cathodic protection system; or
iv. The tank is assessed for corrosion holes by a
method that is determined by the Department to be no less protective of human health
and the environment than (b)2i through iii above.
3. Any drilling performed for the installation of
the cathodic protection systems shall be performed in accordance with 58:4A-4.1 et
seq., the Subsurface and Percolating Waters Act.
(c) Any substantial modification or upgrade to
piping that routinely contains regulated substances, shall meet the requirements of
N.J.A.C.
7:14B-4.1(a)2ii(2), (3),
and (4) and 5.4, as applicable, and be conducted in accordance with a code of
practice developed by a nationally recognized association or independent testing
laboratory.
(d) Any substantial
modification or upgrade to equipment designed to prevent spilling and overfilling
associated with product transfer to the underground storage tank system shall meet
the requirements specified in N.J.A.C.
7:14B-4.1(a) 3, 5.4, and
5.10.
(e) The following codes and
standards, incorporated herein by reference, as amended and supplemented, shall be
used to comply with the requirements of (b) above:
1. American Petroleum Institute Publication 1631,
"Interior Lining and Periodic Inspection of Underground Storage Tanks" (available at
www.api.org);
2. 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" (obtained from: United
States Environmental Protection Agency, Office of Underground Storage Tanks,
Washington, D.C. 20460, or
www.nlpa-online.org);
3. NACE International Standard Practice SP0285,
"External Corrosion Control of Underground Storage Tank Systems by Cathodic
Protection," (available at
www.NACE.org) and
Underwriters Laboratories Standard 58, "Standard for Steel underground storage tanks
for Flammable and Combustible Liquids" (available at
www.UL.com); or
4. American Petroleum Institute Publication 1632,
"Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems"
(available at
www.api.org).
(f) The following codes of practice and standards,
incorporated herein by reference, as amended and supplemented, and as applicable,
shall be used to comply with the periodic lining inspection requirement of (b)1
above:
1. American Petroleum Institute Publication
1631, "Interior Lining and Periodic Inspection of Underground Storage Tanks"
(available at
www.api.org);
2. National Leak Prevention Association Standard
631, Chapter B "Future Internal Inspection Requirements for Lined Tanks";
or
3. Ken Wilcox Associates Recommended
Practice, "Recommended Practice for Inspecting Buried Lined Steel Tanks Using a
Video Camera" (available at
www.kwaleak.com/protocols).
(g) The following codes and standards,
incorporated herein by reference, as amended and supplemented, and as applicable,
shall be used to comply with the requirements of (c) above:
1. American Petroleum Institute Publication 1632,
"Cathodic Protection of Underground Storage Tanks and Piping Systems" (available at
www.api.org);
2. NACE International Standard Practice SP 0169
"Control of External Corrosion on Underground or Submerged Metallic Piping Systems"
(available at
www.NACE.org);
3. Steel Tank Institute Recommended Practice R892,
"Recommended Practice for Corrosion Protection of Underground Piping Networks
Associated with Liquid Storage and Dispensing Systems" (available at
www.steeltank.com);
4. NACE International Standard Practice SP 0285,
"External Corrosion Control of Underground Storage Tank Systems by Cathodic
Protection" (available at
www.NACE.org);
or
5. Underwriters Laboratories Subject
971A, "Outline of Investigation for Metallic Underground Fuel Pipe" (available at
www.UL.com).
