A district court granted partial summary judgment in a CWA citizen suit brought against the owner of a mine in Washington. The state of Washington and an environmental group argued the mine owner had violated various terms of its NPDES permit.

The Iowa Supreme Court reversed, 4-3, a lower court order denying Iowa's motion to dismiss a lawsuit brought by nonprofit groups seeking to reduce fertilizer and waste runoff from farms into the Racoon River.

The U.S. Supreme Court held, 6-3, that a small refinery that previously received a hardship exemption from renewable fuel requirements may obtain an "extension" even if it saw a lapse in exemption coverage in a previous year.

The D.C. Circuit vacated a district court's grant of summary judgment to USDA's Farm Service Agency in a lawsuit concerning the agency's loan approval for a chicken farm in Maryland.

The D.C. Circuit vacated FERC's issuance of a certificate of public convenience and necessity for construction of a natural gas pipeline in the St. Louis area.

The Third Circuit affirmed dismissal of a lawsuit concerning reporting requirements for emissions following fires at a steel facility near Pittsburgh.

A district court denied FWS' motion to dismiss a challenge to its authorization of 12 leopard import permits from hunts expected to occur in Zimbabwe, Tanzania, and Zambia.

A district court granted summary judgment for EPA in a FOIA lawsuit brought by a nonprofit group. The group requested a 2018 draft version of the Agency's Integrated Risk Information System (IRIS) formaldehyde assessment.

A district court granted summary judgment for FWS in a challenge to the adequacy of its recovery plan for the threatened bull trout. Environmental groups argued the plan failed to include objective and measurable criteria as required under §4(f) of the ESA.

A district court dismissed a lawsuit concerning BLM's suspension of oil and gas leases sold in Utah in 2018. Environmental groups argued BLM violated NEPA by failing to prepare an EIS prior to suspending the leases.