Current through Register Vol. 35, No. 6, March 26, 2024
A. Owners and
operators shall maintain all containment sumps (including but not limited to
under dispenser sumps and transition sumps) and draw off liquid that has
accumulated in the containment sumps within one week of the accumulation, and
shall remove any other debris that has accumulated inside the containment
sumps. Owners and operators shall properly treat and dispose of any accumulated
liquid with a visible sheen, and the disposal shall be in accordance with all
federal, state, and local statutes, ordinances, and regulations. If gravity
drain valves are used to remove accumulated liquid from the containment sumps,
owners and operators shall keep all valves closed except during the process of
draining the accumulated liquid.
B.
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 containment sumps and basin sumps free of water, regulated substances,
and debris.
C. Owners and operators
shall maintain all containment sumps associated with interstitial monitoring of
underground piping; the sumps shall be liquid tight and kept free of
water.
D. Owners and operators of
AST systems with single walled containment sumps associated with interstitial
monitoring shall have the integrity of the sumps tested no later than three
years after the effective date of these regulations, and every three years
thereafter, in accordance with the following:
(1) Hydrostatic or other test methods shall
be conducted to ensure the containment sumps are liquid tight including at all
penetrations in accordance with one of the following:
(a) the equipment manufacturer's developed
and published testing requirements;
(b)
Petroleum Equipment Institute RP
1200, "Recommended Practices for the Testing and Verification of Spill,
Overfill, Leak Detection, and Secondary Containment Equipment at UST
Facilities"; or
(c) 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;
(2) Hydrostatic test methods using a test
apparatus developed specifically for testing containment sumps shall ensure the
containment sumps are liquid tight including at all penetrations and comply
with one of the following:
(a) protocols
developed by the manufacturer of the test apparatus and the certification as
listed on the web site of the national work group on leak detection
evaluation;
(b) protocols developed
and published by the manufacturer of the containment sump;
(c)
Petroleum Equipment Institute RP
1200, "Recommended Practices for the Testing and Verification of Spill,
Overfill, Leak Detection, and Secondary Containment Equipment at UST
Facilities"; or
(d) an
alternate test method approved by the department in writing in advance in
accordance with the requirements for Alternate Methods Requests in
20.5.110.1014 NMAC.
(3) A
low liquid level hydrostatic test method may be conducted if all of the
following conditions are met:
(a) test method
used shall be in accordance with the following:
(i) the liquid level meets the third-party
certification for the sensor installed in the sump;
(ii) the duration of the test shall be a
minimum of one hour unless a different test period is specified by the
containment sump manufacturer or in (iii) below;
(iii) 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) either a
hydrostatic test shall be conducted every 12 years in accordance with Paragraph
(1) and (2) of Subsection D or a site check shall be conducted every 12 years
in accordance with in Subsection B of 20.5.118.1801 NMAC.
(c) a sump sensor that automatically shuts
off equipment associated with the sump and meets the requirements for placement
and testing of sensors used for interstitial monitoring in Subparagraph (b) of
Paragraph (3) of Subsection A of 20.5.111.1106 NMAC;
(4) A low liquid level test per Paragraph (3)
of this subsection shall not be conducted if the following conditions exist:
(a) a liquid is discovered in the sump or
evidence is found that a liquid has been at a level equal to or higher than the
lowest penetration in the sump; then testing has to be conducted in accordance
with Paragraph (1) of this subsection;
(b) sensors in containment sumps are
discovered to be located higher than the lowest part of the sump; then a test
shall be conducted in accordance with Paragraph (1) of this subsection and
owners and operators shall report and investigate a suspected release in
accordance with the requirements in 20.5.118 NMAC; or
(c) a site check conducted in accordance with
Paragraph (3) of this subsection indicates there has been a release from the
containment sump.
E. Owners and operators of AST systems with
double-walled containment sumps associated with interstitial monitoring shall
have the integrity of the sumps tested no later than three years from the
effective date of these regulations, and every three years thereafter, in
accordance with one of the following:
(1)
interstices under vacuum, pressure, or brine filled, are continuously monitored
by use of interstitial sensors or visually inspected every 30 days, and the
monitoring records are maintained in accordance with 20.5.110.1015 NMAC. Owners
and operators shall ensure that annual functionality testing or annual
inspections of the monitoring equipment are conducted in accordance with
20.5.111.1104 NMAC. Owners and operators who cannot demonstrate that the
interstices of the containment sumps are continuously monitored or inspected
every 30 days shall have the sumps tested in accordance with Subsection D
above; or
(2) containment sumps
with dry interstices that are not continuously monitored are integrity tested
in accordance with Subsection D of 20.5.110.1007 NMAC.
F. All sensors and equipment used to monitor
containment sumps and their interstices shall be functionality tested annually
in accordance with 20.5.111.1104 NMAC.
G. A report shall be produced which includes
the results of the testing, and the report shall be submitted in accordance
with 20.5.110.1016 NMAC and maintained in accordance with the requirements in
20.5.110.1015 NMAC.
H. Owners and
operators of storage tank systems shall ensure that tests of containment sumps
as required in this section are performed by qualified testers. The
requirements for testers can be found in 20.5.105 NMAC.
I. Owners and operators of storage tank
systems shall dispose of water or other test media used in testing of
components of petroleum storage tank systems, or any accumulated liquid with a
visible sheen, and the disposal shall be in accordance with all federal, state,
and local statutes, ordinances, and regulations. Owners and operators who
temporarily store the test media or water on-site shall do so in accordance
with all federal, state, and local statutes, ordinances, and
regulations.
