A district court vacated EPA's denial of an environmental group's petition to issue new and revised water quality standards for the state of Washington. The group argued that EPA acted…
The Ninth Circuit remanded EPA's issuance of an NPDES general permit for concentrated animal feeding operations (CAFOs) in Idaho. Environmental groups challenged the permit, arguing it lacked…
A district court denied states' and industry groups' motion to stay an order vacating and remanding EPA's 2020 Clean Water Act Section 401 Certification Rule, which had limited the…
The U.S. Supreme Court dismissed a lawsuit brought by Mississippi against Tennessee seeking damages for a Tennessee city's pumping of groundwater from the Middle Claiborne Aquifer.…
A district court granted in part and denied in part gasoline companies' motion for summary judgment in a lawsuit brought by the state of Maryland seeking to redress alleged contamination of…
A district court vacated and remanded EPA's 2020 Clean Water Act Section 401 Certification Rule, which limited the ability of states and Native American tribes to regulate water pollution.…
The Ninth Circuit remanded a summary judgment order in a challenge to EPA's approval of Montana's variance request from approved water quality standards adopted under the CWA. An…
A district court granted EPA and the Army Corps of Engineers' motion to voluntarily remand the Navigable Waters Protection Rule, and granted the Navajo Nation's request that remand…
The Ninth Circuit, 2-1, vacated and remanded a district court ruling in a CWA citizen suit concerning a clay manufacturer's discharges. Environmental groups argued the manufacturer illegally…
The Ninth Circuit vacated an NPDES permit issued by EPA for concentrated animal feeding operations in Idaho. Environmental groups argued the permit lacked sufficient monitoring provisions to…