American Metal Market, 4th Steel Tube and Pipe Conference 3-22-2011

Pictures of Pipeline Material and Construction Quality Issues 6-15-2012

Underground Natural Gas Storage: Key Documents

On December 19, 2016, PHMSA published in the Federal Register an Interim Final Rule (IFR) that revises the Federal pipeline safety regulations to address critical safety issues related to downhole facilities, including wells...

Risk Modeling Work Group Overview

The PHMSA Pipeline Risk Modeling Work Group was formed as a follow up to the September 2015 Pipeline Risk Modeling Methodologies Public Workshop. The purpose of the group is to provide technical, integrity management and operational input to PHMSA to aid in the development of a pipeline system...

Class Location Special Permits

Welcome. This site is administered by the Pipeline and Hazardous Materials Safety Administration (PHMSA), and provides information concerning applications for special permits to operate certain gas transmission pipelines at pressures based on previous class location designation, under...

Pipeline Enforcement Guidance

Enforcement Guidance documents are available to clarify PHMSA's enforcement authority by identifying and summarizing precedent, including those from interpretations, advisory bulletins, final orders, and decisions on petitions for reconsideration.  The material contained in these documents describe the practices used by PHMSA personnel in undertaking their compliance, inspection, and enforcement activities.  This guidance facilitates improved enforcement consistency and is particularly helpful when precedence exists for clarifying performance-based requirements. 

Guided Wave Check List

Locations

Underground Natural Gas Storage: Facility Locations

The following map shows the various types and locations of U.S. underground natural gas storage facilities. (Map courtesy of U.S. Energy Information Administration.)

Pictures

The picture below illustrates the various types of geologic formations used for underground natural gas storage. As noted, the majority of underground gas storage facilities make use of depleted oil and gas fields. Other facilities are found...

State Participation

PHMSA is reaching out to state entities who have the safety authority over the downhole portion (wells/reservoir/salt cavern) of intrastate natural gas underground storage facilities to participate in our underground storage safety program. To participate, state...