N.M. Admin. Code § 20.5.106.606

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

Section 20.5.106.606 - SECONDARY CONTAINMENT FOR UST SYSTEMS

A. Owners and operators shall install secondary containment as follows:

(1) for any new or replaced UST system;

(2) for any new or replaced dispenser system. A dispenser system is considered replaced when both the dispenser and the equipment needed to connect the dispenser to the underground storage tank system are installed at a UST facility. The equipment necessary to connect the dispenser to the underground storage tank system includes check valves, shear valves, unburied risers or flexible connectors, or other transitional components that are underneath the dispenser and connect the dispenser to the underground piping. Under-dispenser containment shall allow for access to the components in the containment system for visual inspections; and

(3) for any UST piping replaced after April 4, 2008.

B. Owners and operators shall design, provide project drawings for, and construct the entire new UST system with the secondary containment system in compliance with the current edition of an industry standard or code of practice developed by a nationally recognized association or independent testing laboratory. The project drawings shall be approved in advance by the department. The secondary containment system shall:

(1) include all tanks, piping, dispenser systems, and all containment sumps for any piping and ancillary equipment that routinely contains regulated substances;

(2) include containment sumps, including under-dispenser containment, transition sumps, and containment sumps for submersible turbine pumps, that are liquid-tight on their sides, bottoms, and at any penetrations; and

(3) be interstitially monitored in accordance with the requirements in 20.5.108 NMAC.

C. If owners and operators:

(1) replace a UST, they shall install a double-walled tank with an inner and outer barrier and a release detection system that meets the requirements of 20.5.108 NMAC;

(2) replace a dispenser system, they shall install, in accordance with manufacturer's recommendations, an under-dispenser containment system that shall be hydrostatically tested and approved by the department prior to use; types of under-dispenser containment systems include, but are not limited to, dispenser liners, containment sumps, dispenser pans and dispenser sump liners; or

(3) replace piping, they shall install only double-walled piping with an inner and outer barrier and a release detection system that meets the requirements of 20.5.108 NMAC for the replaced piping.

D. Owners and operators shall use one or more of the following to comply with secondary containment requirements:

(1)Petroleum Equipment Institute Publication RP100, "Recommended Practices for Installation of Underground Liquid Storage Systems";

(2)American Petroleum Institute RP 1615, "Installation of Underground Hazardous Substances or Petroleum Storage Systems";

(3)National Fire Protection AssociationStandard 30, "Flammable and Combustible Liquids Code"; or

(4)National Fire Protection AssociationStandard 30A, "Code for Motor Fuel Dispensing Facilities and Repair Garages".

E. The secondary containment requirements of this section shall not apply to:

(1) existing USTs in a manifolded system (as secondary containment is only required for a new or replaced UST in a manifolded system);

(2) repairs meant to restore a UST, piping or dispenser system to operating condition;

(3) piping runs that are not new or replaced for USTs with multiple piping runs;

(4) suction piping that meets the requirements of Subsection B of 20.5.108.813 NMAC; and

(5) non-pressurized piping that manifolds two or more underground tanks together, such as a siphon piping system;

N.M. Admin. Code § 20.5.106.606

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