The Third Circuit upheld EPA's TMDL plan for the Chesapeake Bay against challenges from farmer and home building groups. The TMDL—the largest ever developed by EPA—identifies necessary…

A district court granted summary judgment in favor of a coal company, thereby dismissing environmental groups' CWA claim that the company violated its NPDES permit. The dispute centered on…

A district court held that although EPA did not violate its nondiscretionary duty under the CWA to either approve or disapprove a TMDL for PCBs in the state of Washington, it acted contrary to law…

A district court dismissed three New Hampshire cities' citizen suit challenging EPA's decision to approve New Hampshire's impaired waters list under the CWA. The cities lack…

A district court dismissed environmental groups' lawsuit challenging EPA's "authorization" of pollution trading and offsets outlined in its 2010 TMDL for the Chesapeake Bay.…

A district court upheld EPA's final TMDL for the Chesapeake Bay against challenges from farmer and home building groups. The TMDL—the largest ever developed by EPA—identifies the necessary…

A district court held that EPA cannot regulate stormwater as a pollutant under the CWA. According to the court, the language of CWA §303(d)(1)(C) is clear. EPA may set TMDLs to regulate pollutants…

A district court held that environmental groups and water associations may intervene in a lawsuit challenging EPA's TMDL for the Chesapeake Bay and its tributaries. The plaintiffs in the…

A district court held that EPA's approval of a sediments and total suspended solids (TSS) TMDL for the Anacostia River in Maryland and Washington, D.C., was arbitrary and capricious. When…

The Ninth Circuit held that a timber company has standing to challenge EPA's decision to retain the Redwood Creek in Northern California as an impaired water body under CWA §303(d). The…