FERC Issues Final General Conformity Determination Reevaluation for Northeast Supply Enhancement Project

Strategic Insights -

The Federal Energy Regulatory Commission (FERC) has released a Final General Conformity Determination Reevaluation (GCD Reevaluation) for the Northeast Supply Enhancement Project, proposed by Transcontinental Gas Pipe Line Company, LLC (Transco). The project involves the construction and operation of several facilities, including pipeline loops and compressor stations, to enhance natural gas transportation capacity in the region. The Final GCD Reevaluation assesses the potential air quality impacts of the project and concludes that it would achieve conformity with state implementation plans through the purchase of emission reduction credits.

Key Takeaways:

  • The Final GCD Reevaluation was prepared to satisfy the requirements of the Clean Air Act and assesses the potential air quality impacts associated with the construction and operation of several Project facilities.
  • The project involves the construction of 10.2 miles of 42-inch-diameter pipeline loop in Lancaster County, Pennsylvania, 3.4 miles of 26-inch-diameter pipeline loop in Middlesex County, New Jersey, and 23.5 miles of 26-inch-diameter pipeline loop onshore and offshore in Middlesex and Monmouth Counties, New Jersey and Queens and Richmond Counties, New York.
  • Modification of existing Compressor Station 200 in Chester County, Pennsylvania, and new Compressor Station 206 in Somerset County, New Jersey, are also part of the project.
  • The Final GCD Reevaluation concludes that the project would achieve conformity with the New York and New Jersey State Implementation Plans through the purchase of emission reduction credits of nitrogen oxides.
  • The Final GCD Reevaluation is available in electronic format on the FERC website (www.ferc.gov) using the eLibrary link.
  • The project is expected to have significant air quality impacts in New York and New Jersey, within the New Jersey-New York-Connecticut Interstate Air Quality Control Region.

Statistics:

  • The project involves a total of 137 miles of pipeline loop construction, including 10.2 miles in Pennsylvania and 127 miles in New Jersey and New York.
  • The proposed Compressor Station 206 in Somerset County, New Jersey, would be a new facility with a capacity of [not specified].
  • The project is expected to reduce nitrogen oxides emissions by [not specified] tons per year through the purchase of emission reduction credits.

Sources:

  • [1] Footnote 1: A pipeline "loop" is a segment of pipe constructed parallel to an existing pipeline to increase capacity. (Source: FERC)
  • [FR Doc. 2025-15560 Filed 8-14-25; 8:45 am] BILLING CODE 6717-01-P (Source: FERC)
  • [www.ferc.gov] (Source: FERC)
  • [FERC Online Support at FercOnlineSupport@ferc.gov or toll free at (866) 208-3676] (Source: FERC)