About the Williamsburg former Manufactured Gas Plant Site


Gas used for cooking, lighting, heating and commercial purposes was manufactured at the Williamsburg Manufactured Gas Plant (MGP) from approximately 1887 through the late 1930’s or early 1940’s. Historical records, while incomplete, indicate that an independent company operated the plant before that company merged to form Brooklyn Union Gas in 1895. The plant used coal and petroleum products to create a flammable gas which was piped into the surrounding neighborhoods. After the property was sold by Brooklyn Union, it was subdivided and now has multiple private owners and uses, including commercial and warehouse operations and a former City of New York Department of Sanitation garage. National Grid is responsible for the investigation and remediation of the site because it was operated by a predecessor company (Brooklyn Union) at the time MGP-related contamination occurred.

This website provides information on the Williamsburg former MGP Site, the Remedial Investigation of the site, and opportunities for public participation. National Grid is committed to the protection and enhancement of the environment, always seeking ways to minimize the environmental impacts of our past, present and future activities. We hope this website, a part of our public participation and outreach efforts, is helpful and informative. If you need additional information or have suggestions to make our website better, please contact the individuals listed under Contacts.

For more information about the New York State Department of Environmental Conservation’s Manufactured Gas Plant Site program go to: http://www.dec.ny.gov/

Site News and Updates

Hotline Number Update

National Grid is committed to keeping the community informed of any activities at the site. We will continue to post updates on this project website. Please note that the National Grid Hotline for the Williamsburg former MGP Site has changed. Any questions pertaining to the site can be posed by calling the new number at (718) 982-7349.

Williamsburg Works Interim Remedial Measure
NAPL Recovery Wells

The non-aqueous Phase Liquid (NAPL) Recovery Well installation and development field work for the 50 Kent Avenue Interim Remedial Measure (IRM) includes the installation of recovery wells to recover coal tar at the 50 Kent Avenue property of the Former Williamsburg Works MGP Site.

Update for the Week Ending August 4, 2017

Site Restoration Nears Completion

On-going activities:

  • Continued post remediation NAPL recovery from the Site recovery wells along North 11th Street and North 12th Street; and
  • Continued erosion and sediment control measures until the next hydroseeding event scheduled for September 2017 in accordance with NYC Parks specifications.
Recently Completed:

  • Completed the demobilization of electrical service equipment from the support areas on N. 12th Street;
  • Completed the replacement and installation of sidewalks on North 12th Street; and
  • Installed permanent fencing and gates across N. 12th Street.

Upcoming activities:

  • Hydroseed the Site in September 2017; and
  • Adjust the Site fence height to final Site grade.

Community Air Monitoring Plan Summary

Community air monitoring, initiated on Tuesday, December 1, 2015, was completed on May 31, 2107, with the completion of all intrusive activities on Site.

If you have any questions or comments about the work on the Site, please use the Williamsburg MGP Telephone Hotline at (718) 982-7349.

Photos of Activity

Installing sidewalks on North 12th Street.

Installing sidewalks on North 12th Street.

Completing sidewalk installation on North 12th Street.

Completing sidewalk installation on North 12th Street.

Installing permanent fencing and gates across North 12th Street.

Fence and gates installed across North 12th Street.

Site view August 2017.