N.M. Admin. Code § 20.5.110.1002

Current through Register Vol. 35, No. 23, December 10, 2024

Section 20.5.110.1002 - OPERATION, MAINTENANCE, REPAIR AND REPLACEMENT OF SECONDARY CONTAINMENT FOR ASTS

A. Owners and operators shall operate, maintain and repair secondary containment in accordance with the current edition of an industry standard or code of practice developed by a nationally recognized association or independent testing laboratory approved in advance by the department.

B. Owners and operators shall not store inside the secondary containment any material which is chemically reactive with the regulated substance stored in the AST system, or with the AST itself. Owners and operators shall not store any material in the secondary containment that reduces the capacity of the secondary containment below the requirements in 20.5.109.904 NMAC.

C. Owners and operators shall draw off any accumulation of liquid in the secondary containment, including all sumps, within one week of the accumulation, and shall remove any other debris that has accumulated inside the secondary containment. Owners and operators shall properly treat and dispose of any accumulated liquid with a visible sheen. If gravity drain valves are used to remove the accumulated liquid from the secondary containment, owners and operators shall keep all valves closed except during the process of draining the accumulated liquid.

D. In order to maintain the highest level of secondary containment in case of a discharge from, or an overfill of, an AST system, owners and operators shall keep the spill containment buckets, catchment basins, containment sumps, basin sumps, and piping trenches free of water, regulated substances and debris.

E. Owners and operators shall, in accordance with the current edition of an industry standard or code of practice developed by a nationally recognized association or independent testing laboratory approved in advance by the department:

(1) maintain, repair and replace any concrete secondary containment systems; and

(2) repair all significant cracks in the floors and walls of concrete secondary containment systems.

F. Owners and operators shall use one or more of the following to comply with the concrete secondary containment system repair requirements in Subsection E above:

(1)Societyof Protective Coating and National Association of Corrosion Experts SSPC-TU2/NACE 6G197, "Design, Installation and Maintenance of Coating Systems for Concrete used in Secondary Containment';

(2)AmericanConcreteInstitute 224R, "Control of Cracking in Concrete Structures"; or

(3)AmericanConcreteInstitute "Concrete Repair Manual".

G. Owners and operators shall maintain, repair and replace any geo-synthetic liner according to manufacturer's instructions, which owners and operators shall keep readily available at the facility for the life of the liner.

H. Owners and operators shall protect from corrosion any secondary containment constructed of steel, and shall cathodically protect any portion of the steel secondary containment that is in contact with an electrolyte, including soil or water. Owners and operators shall maintain the exterior of any steel secondary containment in accordance with the current edition of an industry standard or code of practice developed by a nationally recognized association or independent testing laboratory approved in advance by the department. The following shall be used to comply with this requirement: Society of Protective Coatings SSPC-PA-1, "Shop, Field, and Maintenance Painting of Steel".

I. Owners and operators of above ground storage tanks which are either double-walled or which have an interstitial space that is monitored as a method of release detection shall comply with the following applicable requirements:

(1) where design and release detection method allow the interstice of a double-walled above ground storage tank to be visually inspected without disturbance of the release detection system, owners and operators shall monthly visually inspect for the presence of water, regulated substances or debris;

(2) if testing conducted in accordance with 20.5.109, 20.5.110 or 20.5.111 NMAC indicates that the stored regulated substance is leaking into the interstice of the AST, then owners and operators shall have the tank repaired in accordance with the tank manufacturer's instructions or specifications, or with the current edition of an industry standard or code of practice developed by a nationally recognized association or independent testing laboratory. Also, owners and operators shall ensure the repair is conducted in accordance with the requirements in 20.5.110.1010 NMAC;

(3) owners and operators shall monitor all vertical ASTs with an interstitial space between the tank bottom and secondary containment for the presence of water or regulated substances; if gravity drain valves are used for monitoring and removal of water or regulated substances, owners and operators shall keep them closed except during the process of monitoring and draining;

(4) owners and operators shall keep all sumps associated with interstitial monitoring free of water;

(5) owners and operators shall annually inspect and test all sensors used to monitor interstitial spaces, in accordance with manufacturer's testing protocol, or in accordance with the current edition of an industry standard or code of practice developed by a nationally recognized association or independent testing laboratory approved in advance by the department; and

(6) owners and operators shall remove any liquid found in interstitial spaces, and dispose of it properly.

J. Owners and operators shall operate, maintain, and repair containment sumps on AST systems in order to prevent any leaks or spills in the containment area from entering the environment.

K. Under-dispenser containment must allow for visual inspection and access to the components in the containment system or be periodically monitored for liquid in the sump in accordance with 20.5.110.1008 NMAC.

L. Containment sumps shall be maintained to meet requirements in 20.5.110.1007 NMAC.

N.M. Admin. Code § 20.5.110.1002

Adopted by New Mexico Register, Volume XXIX, Issue 14, July 24, 2018, eff. 7/24/2018