Author: Paul R. Recupero

On Thursday, May 25, 2023, the U.S. Supreme Court handed down a decision in Sackett v. EPA, a closely watched case concerning the jurisdictional reach of the federal government’s ability to regulate sources of pollution under the Clean Water Act (CWA). Specifically, the Court addressed the test for determining whether wetlands are “waters of the United States” within the scope of the CWA. The CWA prohibits the discharge of pollutants into “navigable waters,” which the CWA defines as “the waters of the United States.” The definition has been the subject of numerous cases and interpretations, most recently in the 2006 Supreme Court decision in Rapanos v. United States, which created multiple tests for what constituted “waters of the United States.” The majority in Sackett has created a single, much narrower test. The background of Sackett v. EPA dates back to 2007, when plaintiffs Michael and Chantell Sackett began backfilling their property with dirt and rock, about 300 feet from Priest Lake. The Sacketts received a notice from the U.S. Environmental Protection Agency (EPA), which instructed the Sacketts to stop work because of the presence of wetlands protected by the CWA, which bars the discharge of pollutants, including rocks and sand, into “waters of the United States.” The EPA reasoned that the wetlands on the Sacketts’...

In January, the Biden Administration promulgated the federal government’s latest rule defining “waters of the United States” (WOTUS Rule). The WOTUS Rule, which defines the waters that are subject to federal permitting and oversight under the Clean Water Act (CWA) by the U.S. Environmental Protection Agency (EPA) and U.S. Army Corps of Engineers (USACE), went into effect on March 20, 2023. As with past attempts to define “waters of the United States,” the new WOTUS Rule is already triggering legal challenges. Since the enactment of the CWA in 1972, courts, agencies, and landowners have struggled to define the statute’s geographic scope, especially with respect to wetlands, which do not fit neatly within familiar notions of “water” or “land.” The statute prohibits unpermitted discharges of pollutants (including fill material) into “navigable waters” but defines that term broadly as “the waters of the United States, including the territorial seas.” The Biden Administration’s WOTUS Rule replaces the Trump Administration’s Navigable Waters Protection Rule (NWPR), which was promulgated in 2020 but subsequently vacated by two federal district courts. The NWPR followed the Trump Administration’s 2019 repeal of a 2015 Obama Administration rule (the 2015 Clean Water Rule) that had taken a categorical approach to defining “waters of the United States.” The Biden Administration’s WOTUS Rule seeks to return to...