Current through Register Vol. 35, No. 18, September 24, 2024
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
Association
Standard 30,
"Flammable and
Combustible Liquids Code"; or
(4)
National Fire Protection
Association
Standard 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;