A district court granted in part summary judgment for an environmental group in a challenge to EPA's issuance of recommended water quality criteria for cadmium in 2016. The group argued EPA…
The D.C. Circuit dismissed five states' petition to review EPA's extension of a compliance deadline for a revised national drinking water regulation, which in turn extended the deadline…
The Minnesota Supreme Court affirmed in part and reversed in part an appellate court ruling in a challenge to the Minnesota Pollution Control Agency's (MPCA's) decision to issue an NPDES…
The Ninth Circuit, 2-1, denied the city of San Francisco's challenge to an EPA order denying review of the city's NPDES permit for a combined sewer system and wastewater treatment…
The Tenth Circuit affirmed denial of conservation groups' claims in a lawsuit concerning the Bureau of Reclamation's decision to sign a water contract allowing the state of Utah to draw…
A district court granted EPA's and the Army Corps of Engineers' motion to stay Texas' and Idaho's challenge to the Biden Administration's 2023 rule revising the definition…
The U.S. Supreme Court held, 5-4, that an 1868 peace treaty between the Navajo Nation and the United States establishing the Navajo Reservation reserved necessary water to accomplish the purpose…
The Ninth Circuit, 2-1, denied a municipal irrigation district's request to compel a district court to remand to state court its motion for preliminary injunction in a suit concerning water…
A district court granted in part and denied in part an environmental group's motion for summary judgment in a CWA citizen suit concerning the Forest Service's discharge of aerially…
The U.S. Supreme Court held that the CWA extends to only those "wetlands with a continuous surface connection to bodies that are 'waters of the United States' in their own right,…