N.M. Admin. Code § 20.5.111.1108

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

Section 20.5.111.1108 - REQUIREMENTS FOR AST UNDERGROUND SUCTION PIPING INSTALLED ON OR AFTER JULY 24, 2018

A. Owners and operators of above ground storage tank systems where piping conveys regulated substances under suction and was installed after the effective date of these regulations shall meet the requirements for interstitial monitoring in 20.5.111.1103 NMAC and the following:

(1) Sensors shall be installed in all containment sumps associated with the piping, including under-dispenser containment, transition sumps, and secondary containment sumps used to monitor the interstice.

(2) Sensors shall:

(a) monitor the interstice;

(b) monitor all containment sumps associated with the piping;

(c) sound an alarm and automatically shut off the pump when a regulated substance or water is detected;

(d) be positioned in the lowest point of the containment sump; and

(e) be tested annually in accordance with Subsection C of 20.5.111.1104 NMAC.

(3) Containment sumps used for interstitial monitoring shall be tested every three years beginning three years after the effective date of the regulations. The testing of the containment sumps shall comply with one of the following:

(a) the testing procedures as described in Petroleum Equipment Institute Publication RP 1200, "Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities"; or

(b) the equipment manufacturer's published testing procedures.

B. Release detection is not required for suction piping that is designed and constructed to meet all of the following standards:

(1) the below-grade piping operates at less than atmospheric pressure;

(2) the below-grade piping is sloped so that the contents of the pipe will drain back into the storage tank if the suction is released;

(3) only one check valve is included in each suction line;

(4) the check valve is located directly below and as close as practical to the suction pump; and

(5) compliance with Paragraphs (2) through (4) of Subsection B of this section is demonstrated.

C. Owners and operators shall use one or more of the following to comply with the requirements of this section:

(1)Petroleum Equipment Institute Publication RP 100, "Recommended Practices for Installation of Underground Liquid Storage Systems";

(2)Petroleum Equipment Institute RP 200, "Recommended Practices for Installation of Aboveground Storage Systems for Motor Vehicle Fueling";

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

(4)American Petroleum Institute 570, "Piping Inspection Code: In-Service Inspection, Repair, and Alteration of Piping Systems"; and

(5)American Society of Mechanical Engineering Standard B31.3, "Process Piping".

D. Owners and operators shall maintain all records of release detection and testing in accordance with 20.5.11.1111 NMAC and provide to the department reports for all release detector testing, line tightness testing, and sensor testing in accordance with 20.5.11.1112 NMAC.

N.M. Admin. Code § 20.5.111.1108

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