waters of the United States
Ohio v. United States Environmental Protection Agency
The Sixth Circuit dismissed as moot a lawsuit seeking to preliminarily enjoin EPA's 2015 Clean Water Rule that clarified the definition of "waters of the United States" under the CWA. Ohio and Tennessee challenged the validity of the...
Colorado v. U.S. Environmental Protection Agency
A district court stayed the Navigable Waters Protection Rule, which substantially narrows the definition of "waters of the United States" that are subject to federal regulation under the CWA, in Colorado. Colorado argued that the...
California v. Wheeler
A district court denied a motion for preliminary relief in a challenge to the Navigable Waters Protection Rule, which substantially narrows the definition of "waters of the United States" that are subject to federal regulation under the...
Conservation Law Foundation v. Longwood Venues & Destinations, Inc.
A district court upheld EPA's interpretation that the CWA does not regulate discharges into groundwater that is hydrologically connected to navigable waters in a lawsuit concerning a wastewater treatment facility on Cape Cod. An...
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