The National Environmental Policy Act (NEPA) requires federal agencies to evaluate the environmental effects of their proposed actions. When a proposed action may cause significant environmental impacts, NEPA requires the agency to prepare an environmental impact statement that evaluates alternatives including measures to avoid or mitigate impacts. The agency may not divide a single project into separate bites and find that each in isolation would not have a significant environmental impact. Instead, regulations issued by the Council on Environmental Quality require the agency’s environmental review to encompass connected actions and similar actions.
In Delaware Riverkeeper Network v. FERC, Texas Eastern Pipeline Company sought certificates of public convenience from the Federal Energy Regulatory Commission (FERC) authorizing construction and operation of the Northeast Upgrade Project, one of four projects to improve the Eastern Leg of a natural gas pipeline known as the 300 Line. FERC evaluated the Northeast Upgrade project separately from the others on the ground that each project was designed to provide natural gas to different customers pursuant to different contracts within different time frames. FERC concluded that the potential environmental impacts were not significant and terminated its evaluation by issuing a finding of no significant impact. Environmental organizations petitioned for review of the FERC action on the ground that the four pipeline projects were interrelated and cumulatively would, in their view, clear hundreds of forest acres, fragment habitat and adversely impact wetlands and groundwater in significant ways.
On review, the Court of Appeals for the District of Columbia held that FERC’s segmented environmental review failed to meet NEPA’s requirements. The Court reasoned that all four projects involved the construction of a single, physically interdependent pipeline, were undertaken in a close time frame and were financially interdependent. No customer was a customer of a single pipeline segment and no logical justification existed for the choice of where one project ended and the next began. Accordingly, the Court remanded the case to FERC to review the pipeline project as a whole, including its cumulative impacts.
FERC now faces the daunting task of determining how to implement the Court’s holding in other situations. To be sure, in many cases FERC will be able to readily ascertain whether projects involving a single pipeline are physically, financially and temporally interdependent. But in some areas of the country, transmission pipelines are being installed contemporaneously with natural gas wells, gathering lines physically connecting these wells to the transmission pipelines, and supporting roads, impoundments and other infrastructure. Whether these arguably related projects are sufficiently connected or similar to trigger joint NEPA review may turn on whether they involve different ownership, distinct functions, separate financing and customers and clear physical divisions. Resolving these questions may be no easy task, and even then does not necessarily determine whether a full environmental impact statement must be prepared. When performing an environmental assessment of multiple projects together, FERC may still conclude that the environmental effects are insignificant. With so many steps in the analysis that may be controversial, a new wave of NEPA challenges is likely on the horizon.
One postscript for practitioners before the D.C. Circuit. In a punchy concurring opinion, Judge Silberman expressed his dismay at the submission of a brief “laden with obscure acronyms.” For those of us in the environmental bar for whom use of acronyms has become second nature, beware.