The Ninth Circuit reversed the dismissal of a lawsuit concerning a tile drainage system in the San Joaquin Valley that discharged agricultural drainage into navigable waters without an NPDES permit. Fishermen and conservation groups argued the district court erred by placing the burden on them of pr...

The D.C. Circuit granted in part and denied in part a petition challenging EPA's update to the Cross-State Air Pollution Rule. Environmental groups and Delaware argued that EPA violated the CAA by failing to require upwind states to eliminate their significant contributions in accordance with the de...

The Fifth Circuit dismissed environmental groups' challenge to EPA's issuance of a CWA general permit authorizing discharges from oil and gas facilities operating in the Gulf of Mexico. Environmental groups argued that EPA violated NEPA by failing to prepare an adequate EIS before issuing the permit...

The Fifth Circuit upheld a 2017 EPA rule that postponed compliance dates mandated by the Agency's 2015 rule setting new effluent limitation guidelines for flue gas desulfurization wastewater and bottom ash transport water from steam electric power plants. Environmental groups argued the 2017 rule ef...