Browse 3 clean water act citizen suits cases decided by Ninth Circuit. AI-powered summaries, holdings, and legal analysis.
Ninth Circuit Clarifies Point Source Discharge Under Clean Water Act
San Luis Obispo Coastkeeper v. County of San Luis Obispo, decided by Ninth Circuit on December 3, 2025, resulted in a defendant win outcome. The Ninth Circuit affirmed the district court's dismissal o...
Ninth Circuit: CERCLA and CWA do not apply extraterritorially without clear intent
Confederated Tribes of the Colville Reservation v. Teck Cominco Metals Ltd, decided by Ninth Circuit on September 3, 2025, resulted in a defendant win outcome. The Confederated Tribes of the Colville ...
Ninth Circuit: No CWA violation without proof of pollutant "addition" from point source
State of Montana v. Talen Montana, LLC, decided by Ninth Circuit on March 4, 2025, resulted in a defendant win outcome. The Ninth Circuit affirmed the district court's dismissal of a Clean Water Act l...
CaseLawBrief currently tracks 3 clean water act citizen suits cases from Ninth Circuit. This number is updated as new opinions are published.
Outcome breakdown: Defendant Win: 3.
Each case page on CaseLawBrief includes an AI-generated plain English summary, key holdings, and legal analysis. Click any case above to read its full analysis.