Louisiana Administrative Code › Title 33 - ENVIRONMENTAL QUALITY › Part V - Hazardous Wastes and Hazardous Materials › Subpart 3 - Natural Resources › Chapter 304 - Transportation of Hazardous Liquids by Pipeline-Operation and Maintenance [49 CFR Part 195 Subpart F] › Section V-30418 - Valves: Onshore Valve Shut-Off For Rupture Mitigation [49 CFR 195.418]

Current through Register Vol. 50, No. 6, June 20, 2024
A. Applicability.
				  For newly constructed and entirely replaced onshore hazardous liquid or carbon
				  dioxide pipeline segments, as defined at §30105, with diameters of 6 inches or
				  greater that could affect high-consequence areas or are located in high
				  consequence areas (HCA), and that have been installed after April 10, 2023 an
				  operator must install or use existing rupture-mitigation valves (RMV), as
				  defined at §30105, or alternative equivalent technologies according to the
				  requirements of this section and
				  §30419 RMVs and alternative equivalent
				  technologies must be operational within 14 days of placing the new or replaced
				  pipeline segment in service. An operator may request an extension of this
				  14-day operation requirement if it can demonstrate to PHMSA, in accordance with
				  the notification procedures in §30123, that application of that requirement
				  would be economically, technically, or operationally infeasible. The
				  requirements of this section apply to all applicable pipe replacements, even
				  those that do not otherwise directly involve the addition or replacement of a
				  valve. [49 CFR
				  195.418(a)]
B. Maximum spacing between valves. RMVs and
				  alternative equivalent technology must be installed in accordance with the
				  following requirements. [49
				  CFR 195.418(b)]
1. Shut-off Segment. For purposes of this
				  Section, a "shut-off segment" means the segment of pipeline located between the
				  upstream valve closest to the upstream endpoint of the replaced pipeline
				  segment in the HCA or the pipeline segment that could affect an HCA and the
				  downstream valve closest to the downstream endpoint of the replaced pipeline
				  segment of the HCA or the pipeline segment that could affect an HCA so that the
				  entirety of the segment that could affect the HCA or the segment within the HCA
				  is between at least two RMVs or alternative equivalent technologies. If any
				  crossover or lateral pipe for commodity receipts or deliveries connects to the
				  replaced segment between the upstream and downstream valves, the shut-off
				  segment also extends to a valve on the crossover connection(s) or lateral(s),
				  such that, when all valves are closed, there is no flow path for commodity to
				  be transported to the rupture site (except for residual liquids already in the
				  shut-off segment). Multiple segments that could affect HCAs or are in HCAs may
				  be contained within a single shut-off segment. All entirely replaced onshore
				  hazardous liquid or carbon dioxide pipeline segments, as defined in §30105,
				  that could affect or are in an HCA must include a minimum of one valve that
				  meets the requirements of this section and
				  section
				  30419 The operator is not
				  required to select the closest valve to the shut-off segment as the RMV or
				  alternative equivalent technology. An operator may use a manual pump station
				  valve at a continuously manned station as an alternative equivalent technology.
				  Such a manual valve used as an alternative equivalent technology would not
				  require a notification to PHMSA in accordance with
				  §30123 [49 CFR
				  195.418(b)(1)]
2. Shut-Off Segment Valve Spacing. Pipeline
				  segments subject to Subsection A of this Section must be protected on the
				  upstream and downstream side with RMVs or alternative equivalent technologies.
				  The distance between RMVs or alternative equivalent technologies must not
				  exceed: [49 CFR
				  195.418(b)(2)]
a. for pipeline segments carrying non-highly
				  volatile liquids (HVL): 15 miles, with a maximum distance not to exceed 7 1/2
				  miles from the endpoints of a shut-off segment: or [49 CFR
				  195.418(b)(2)(i)]
b. for pipeline segments carrying non-highly
				  volatile liquids (HVL): 15 miles, with a maximum distance not to exceed 7 1/2
				  miles from the endpoints of a shut-off segment: or [49 CFR
				  195.418(b)(2)(ii)]
3. Laterals. Laterals extending
				  from shut-off segments that contribute less than 5 percent of the total
				  shut-off segment volume may have RMVs or alternative equivalent technologies
				  that meet the actuation requirements of this section at locations other than
				  mainline receipt/delivery points, as long as all of these laterals contributing
				  hazardous liquid volumes to the shut-off segment do not contribute more than 5
				  percent of the total shut-off segment volume, based upon maximum flow volume at
				  the operating pressure. A check valve may be used as an alternative equivalent
				  technology where it is positioned to stop flow into the lateral. Check valves
				  used as an alternative equivalent technology in accordance with this paragraph
				  are not subject to
				  §30419 but must be inspected, operated,
				  and remediated in accordance with §30420, including for closure and leakage, to
				  ensure operational reliability. An operator using a such a valve as an
				  alternative equivalent technology must submit a request to PHMSA in accordance
				  with §30123
				  [49 CFR
				  195.418(b)(3)]
4. Crossovers. An operator may use a manual
				  valve as an alternative equivalent technology for a crossover connection if,
				  during normal operations, the valve is closed to prevent the flow of hazardous
				  liquid or carbon dioxide with a locking device or other means designed to
				  prevent the opening of the valve by persons other than those authorized by the
				  operator. The operator must document that the valve has been closed and locked
				  in accordance with the operator's lock-out and tag-out procedures to prevent
				  the flow of hazardous liquid or carbon dioxide. An operator using a such a
				  valve as an alternative equivalent technology must submit a request to PHMSA in
				  accordance with
				  §30123 [49 CFR
				  195.418(b)(4)]