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As conditions evolve, we are taking precautionary actions to mitigate exposure and reduce the impact of the novel coronavirus (COVID-19) on our customers and employees. We remain committed to providing safe and reliable service to our customers, and we are doing our part to protect the communities where we live and serve.
To learn more, and stay updated on National Grid’s efforts, visit our dedicated page: ngrid.com/covid-19.
In 2017 we integrated the industry leading standards set by the American Petroleum Institute (API1173) into our existing programs and standards to form a single, umbrella framework providing a disciplined and formal method to manage pipeline safety risks and compliance issues. Learn more about the structure and benefits in our Safety Management System brochure.
In accordance with federal regulations, some segments along transmission pipelines have been designated as High Consequence Areas (HCAs) and supplemental hazard assessment and prevention programs (called Integrity Management Programs) have been developed.
National Grid is guided by an Integrity Management Program (IMP), which has been developed in accordance with rules established by the U.S. Department of Transportation (DOT) and local state regulatory agencies, which govern the program. The IMP was developed through the cooperation of industry experts, from both within and outside of National Grid, and meets or exceeds all federal requirements. The primary goal is to continuously improve safety by identifying, assessing and managing risks to natural gas pipelines.
At National Grid, we are committed to the safe operation of all of our natural gas facilities, including pipelines. We:
Excess Flow Valve Notification
Did you know you can request installation of an Excess Flow Valve (EFV) on your existing gas service line under certain circumstances? For more information, call National Grid at 781-907-2958 or email.
Federal regulation 49 C.F.R. §192.383(d) regarding gas pipeline safety requires National Grid to notify customers of their right to request installation of an Excess Flow Valve (EFV) on their existing gas service line under certain circumstances. An EFV is a mechanical safety device installed inside a gas service line between the gas main in the street and the gas meter. The EFV is designed to minimize the flow of natural gas in the event of a service line break. A potential benefit is, in the event that an excavator accidentally digs up the gas service line, the valve would operate to minimize or shut off the flow of gas.
If the customer’s service line operates at a pressure of less than 10 pounds per square inch gauge throughout the year, the customer’s service line is exempt from EFV installation.
Customers with loads of 1,000 standard cubic feet of gas per hour (SCFH) or less are eligible for an EFV unless one or more of the following conditions exist: (1) the customer’s service line operates at a pressure of less than 10 pounds per square inch gauge throughout the year, (2) the gas company has prior experience with contaminants in the gas stream that could interfere with the EFV’s operation or cause loss of service to a customer; (3) there is potential for interference with necessary operation or maintenance activities, such as blowing liquids from the line; or (4) an EFV meeting the performance standards set forth in the federal regulations is not commercially available to the gas company.
EFVs do not operate on all gas service lines and certain parameters may exist where installation of an EFV is not warranted. Many customers already have an EFV installed on their existing service line. If you would like to determine if you are eligible to have an EFV installed on your gas service line, call National Grid at 781-907-2958 or send an email.
Installation requires Dig Safe® notification and excavation where the existing gas service line connects to the gas distribution main. Gas service will be interrupted to the customer.
Customers may pay a basic installation charge of $3,900. Additional costs may apply based on location-specific installation needs. The Massachusetts Department of Public Utilities (MDPU) is currently reviewing a request by National Grid to allow the EFV to be installed without a direct charge to the customer. Customer requests for EFV installations will be scheduled to occur after the MDPU’s final decision on payment responsibility and customers will be charged in compliance with the MDPU’s decision. In the future, additional costs may be incurred to maintain and/or replace the EFV and these costs may be charged to the customer.