Pittsburgh, PA
Environmental Alert
(By Lisa Bruderly)
The definition of “waters of the United States” (WOTUS) determines federal jurisdiction under the Clean Water Act (CWA). It affects U.S. Army Corps of Engineers (Corps) permitting for impacts from crossing, or otherwise disturbing, federally regulated streams and wetlands, as well as NPDES permitting, federal spill reporting and SPCC plans.
As one of their last actions for 2022, U. S. EPA and the Corps (the Agencies) released a pre-publication notice of a new definition of WOTUS on December 30, 2022. The new definition will become final 60 days after publication in the Federal Register. The definition was originally proposed in a December 7, 2021 rulemaking.
Although the Agencies have promoted this final rule as establishing a “durable definition” that will “reduce uncertainty” in identifying WOTUS, this definition does not appear to provide much-needed clarity. Rather, generally speaking, the new definition codifies the approach that the Agencies have already been informally utilizing, which entails relying on the definition of WOTUS from the late 1980s, as interpreted by subsequent U. S. Supreme Court decisions (e.g., Rapanos v. United States, 547 U.S. 715 (2006)). The Agencies reverted back to this definition in August of 2021, when the U.S. District Court for the District of Arizona vacated the definition of WOTUS promulgated by President Trump’s administration, referred to as the Navigable Waters Protection Rule.
The Agencies’ current approach to interpreting WOTUS relies heavily on both of the frequently discussed tests identified in the Rapanos decision. In Rapanos, Justice Antonin Scalia issued the plurality opinion, holding that WOTUS would include only “relatively permanent, standing or continuously flowing bodies of water” connected to traditional navigable waters, and to “wetlands with a continuous surface connection to such relatively permanent waters” (i.e., adjacent wetlands). …