Pennsylvania's highest court held that the $10,000/day civil penalty under the Clean Streams Law does not apply to each day that pollutants leaked from an impoundment remain in the…

The Fifth Circuit affirmed a lower court decision dismissing an environmental restoration company's lawsuit against the U.S. Army Corps of Engineers for building new wetlands without…

The Fifth Circuit stayed a preliminary injunction that barred a company from constructing a crude oil pipeline through the environmentally sensitive Atchafalaya Basin. An environmental group…

In a 259-page opinion, a federal claims court held that the U.S. Army Corps of Engineers is responsible for causing recurrent flooding along the Missouri River. Farmers, landowners, and business…

The U.S. Supreme Court held that the United States may pursue claims against New Mexico for violating the Rio Grande Compact, which Colorado, New Mexico, and Texas entered into in the 1930s to…

A district court upheld the U.S. Department of Homeland Security's (DHS') decision to waive the legal requirements of NEPA, ESA, and CZMA for two border wall construction projects in San…

The U.S. Supreme Court, in an unsigned judgment and decree, ordered Wyoming to pay Montana $20,340 in damages, plus $67,270.87 in costs, for reducing the amount of water available in the Tongue…

The Arizona Court of Appeals held that a tribe may proceed with its nuisance claim against a ski resort for its use of reclaimed wastewater to make artificial snow. In 2002, the ski resort…

The Ninth Circuit held that Maui County is liable for illegally discharging treated wastewater that seeped through groundwater into the Pacific Ocean. The County owns and operates four wells at…

The Michigan Court of Appeals held that a class action case involving the Flint water crisis can proceed. Citizens of Flint formed a class and sued Michigan officials for their "deliberate…