A Minnesota appellate court remanded a challenge to the Minnesota Pollution Control Agency's (MPCA's) grant of an air emissions permit for a proposed copper-nickel mine in northern Minnesota. Environmental groups argued the MPCA improperly issued the permit because the company receiving it did not i...

A district court granted EPA's motion to remand without vacatur the Clean Water Act Section 401 Certification Rule., full_html...

A district court granted partial summary judgment for environmental groups in a CWA citizen suit concerning water quality standards for mercury in Idaho. The groups argued that EPA's failure to promptly publish and promulgate mercury standards after disapproving Idaho's revision of those standards v...

A district court granted summary judgment for environmental groups in an ongoing dispute over a Hawaii county's release of pollutants into injection wells at a wastewater reclamation facility near the Pacific Ocean. The groups argued the county violated the CWA by failing to obtain an NPDES permit f...

The D.C. Circuit granted in part environmental groups' petition to review EPA's 2019 rule setting annual renewable fuel volume levels under the Renewable Fuel Standard (RFS) program. The groups argued that EPA's "aggregate compliance approach" for determining whether biofuel qualifies as renewable f...