N.J. Admin. Code § 7:14B-4.2

Current through Register Vol. 56, No. 21, November 4, 2024

Section 7:14B-4.2 - Requirements for substantial modification or upgrade of an underground storage tank system

(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).

N.J. Admin. Code § 7:14B-4.2

Amended by 50 N.J.R. 409(a), effective 1/16/2018