The U.S. Third Circuit Court of Appeals reversed a key New Jersey water permit for U.S. energy company Williams Cos' long-delayed Northeast Supply Enhancement (NESE) natural gas pipeline project in Pennsylvania, New Jersey and New York.
The court said in a ruling on Tuesday that it granted petitions by environmental groups, vacated the Water Quality Certification and remanded the case to the New Jersey Department of Environmental Protection (NJDEP).
“Following the Third Circuit's decision, we are working promptly with state regulatory officials to address the court's findings and remain committed to advancing the Northeast Supply Enhancement (NESE) project," Cherice Corley, a spokesperson at Williams, told Reuters in an email.
"At this time, we do not expect the decision to adversely affect project construction or the anticipated in-service timeline," Corley said.
A coalition of environmental groups filed a lawsuit last November against the NJDEP for unjustifiably approving the certification for NESE, after first rejecting the project in 2019 for failure to demonstrate compliance with state water quality standards.
“When the water quality certificate was denied in 2019, that should have been the end of it," said Charlie Kratovil, Central Jersey Organizer at Food & Water Watch, one of the environmental groups opposing the project.
NESE is a roughly $1 billion project under construction by Williams' Transcontinental Gas Pipe Line Co (Transco) unit that would expand the existing Transco gas pipe. NESE includes the construction of an offshore pipe in the Raritan Bay between New Jersey and New York.
The environmental groups contended that the underwater segment would require dredging the bay floor, stirring up sediment containing toxic contaminants like mercury and PCBs (polychlorinated biphenyls), which could pose risks to human health and marine habitats.
Williams officially broke ground on NESE in Brooklyn, New York, in April 2026.
In addition to NESE, Williams is developing another long-delayed gas pipe in the region, Constitution Pipeline from Pennsylvania to New York.
Both projects were controversial in part because they were previously rejected by state environmental regulators and canceled by Williams in past years before U.S. President Donald Trump sought their revival after returning to office in 2025.
Williams said on its website that it targeted completion of NESE in the fourth quarter of 2027 and Constitution in the fourth quarter of 2028.
NESE is designed to move around 0.4 billion cubic feet per day (bcfd) of gas from Pennsylvania, across New Jersey and into New York.
Constitution, which is not under construction, is designed to move around 0.65 bcfd of gas from Pennsylvania to New York.
One billion cubic feet of gas is enough to supply around five million U.S. homes for a day.
(Reuters)
Facts Only
* The U.S. Third Circuit Court of Appeals reversed a New Jersey water permit for Williams Cos' Northeast Supply Enhancement (NESE) natural gas pipeline project.
* The court granted petitions by environmental groups, vacated the Water Quality Certification, and remanded the case to the New Jersey Department of Environmental Protection (NJDEP).
* Williams stated they are working with state regulatory officials to address the court's findings and remain committed to the NESE project.
* Environmental groups filed a lawsuit against the NJDEP regarding unjustifiable approval of the NESE certification, following a 2019 rejection based on water quality standards.
* NESE is a project under construction by Williams' Transcontinental Gas Pipe Line Co (Transco) unit.
* NESE includes constructing an offshore pipe in Raritan Bay between New Jersey and New York.
* Williams targeted completion of NESE in the fourth quarter of 2027.
* NESE is designed to move 0.4 billion cubic feet per day (bcfd) of gas from Pennsylvania, across New Jersey, and into New York.
* Williams is also developing the Constitution Pipeline from Pennsylvania to New York.
* Constitution is not under construction but is designed to move 0.65 bcfd of gas from Pennsylvania to New York.
Executive Summary
Full Take
The reversal of the water permit introduces a significant judicial intervention into an energy infrastructure timeline, shifting the immediate path forward from regulatory approval to mandated review by state officials. The pattern observed is the tension between private commercial objectives—the pipeline expansion and construction timelines projected by Williams—and public environmental mandates established through regulatory certification. Environmental groups framed their opposition around potential long-term contamination risks from dredging, setting up a clear conflict between economic development and ecological stewardship concerning marine habitats. The fact that prior state regulators had already rejected the project suggests a history where permitting was contested at the administrative level before reaching the federal court. The pattern here is the leverage exerted by external litigation to force regulatory reconsideration, which tests the robustness of established environmental review processes when pitted against long-term industrial development goals. The core implication is that even projects with substantial projected timelines face vulnerability based on evolving legal interpretations of environmental compliance, forcing a re-evaluation of risk assessment versus operational necessity.
What assumptions are driving the projection of an in-service timeline despite adverse court findings? How does the dynamic between state regulatory bodies and private entities impact public trust in infrastructure planning when litigation is involved? Does the reliance on future timelines obscure the necessary process for incorporating complex, multi-jurisdictional environmental findings into immediate operational plans?
Sentinel — Human
The text reads like standard, fact-based reporting on a legal/environmental dispute, characterized by specific citations and layered background information that points toward human journalistic drafting.