The Ninth Circuit, on remand from the U.S. Supreme Court, held that pollution exceedances detected at monitoring stations in Los Angeles County were sufficient to establish the county's…

A district court upheld DOI's approval of oil spill response plans an oil company submitted for drilling operations in the Chukchi and Beaufort Seas. Despite environmental groups'…

A district court dismissed a landowner's lawsuit challenging the U.S. Army Corps of Engineers' jurisdictional determination for property that contains peat. The Corps issued its…

A district court dismissed a homebuilder association's lawsuit against EPA and the U.S. Army Corps of Engineers challenging their determination that portions of the Santa Cruz River are…

The Ninth Circuit reversed a lower court decision dismissing a conservation group's CWA citizen suit alleging that a scrap metal company violated California's general NPDES permit for…

A district court held that a mining company is liable under the CWA for the unpermitted discharge of selenium at one its surface mines. The company did not dispute that it has been discharging…

The Seventh Circuit upheld a dredge and fill permit issued by the U.S. Army Corps of Engineers for a highway project that crosses wetlands in Indiana. The Corps adequately considered practicable…

A district court dismissed an environmental group's APA lawsuit against EPA challenging 40 C.F.R. §124.55(b), which pertains to state certification of discharge permits issued by the Agency…

The Fourth Circuit upheld the U.S. Army Corps of Engineers' decision to issue a CWA §404 fill permit to a surface mine in West Virginia. Environmental groups challenged the permit on two…

A district court dismissed as time barred environmental groups' CWA and APA claims challenging EPA's list of dispersants and other projects that may be used in the event of an oil spill…