N.M. Admin. Code § 20.5.107.706

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

Section 20.5.107.706 - OPERATION AND MAINTENANCE OF CONTAINMENT SUMPS FOR UST SYSTEMS

A. Owners and operators shall maintain all containment sumps (including but not limited to turbine sumps, 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.

B. 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.

C. Owners and operators of UST systems with single walled containment sumps associated with interstitial monitoring shall have the integrity of the sump 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 manufacturers 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 http://www.nwglde.org, the web site of the national work group on leak detection evaluation; or

(b) protocols developed and published by the manufacturer of the containment sump; or

(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

(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 Item (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 C 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 Paragraph 2 of Subsection B of 20.5.108.811 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 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.

D. Owners and operators of UST systems with double-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 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 20.5.107.714 NMAC. Owners and operators shall ensure that annual functionality testing or annual inspections of the monitoring equipment are conducted in accordance with 20.5.108.805 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 C above; or

(2) containment sumps with dry interstices that are not continuously monitored are integrity tested in accordance with Subsection C of this section.

E. All sensors and equipment used to monitor containment sumps shall be functionality tested annually in accordance with Subsection B of 20.5.108.805 NMAC.

F. A report shall be produced which includes the results of the testing, and the report shall be submitted in accordance with 20.5.107.715 NMAC and maintained in accordance with the requirements in 20.5.107.714 NMAC.

G. 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.

H. 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.

N.M. Admin. Code § 20.5.107.706

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