WOTUS, an acronym that has received a lot of attention in recent years, stands for the “waters of the United States.” When Congress enacted the Clean Water Act (“CWA” or the “Act”) in 1972, it prohibited “the discharge of any pollutant by any person” into navigable waters without a permit. The Act defines navigable waters as the “waters of the United States, including the territorial seas.” 33 U.S.C. §§ 1311(a), 1362(7), (12). But Congress failed to, in turn, define the words “waters of the United States,” and the Supreme Court has noted that these “words themselves are hopelessly indeterminate.” Sackett v. EPA, 132 S. Ct. 1367, 1375 (2012) (J. Alito, concurring). The meaning of these words matters because violations of the CWA are subject to substantial criminal and civil penalties, so knowing whether a feature on your site is a WOTUS subject to federal jurisdiction has important consequences. Continue Reading Navigating the CWA’s Reach: What’s Happening with WOTUS?