A district court held that a local sanitation department that owns and operates a complex sanitary sewer conveyance system and 13 wastewater treatment plants must pay penalties for the…

A district court remanded to EPA its determination that several provisions of Florida's "impaired water rule" are not new or revised water quality standards and, thus, not subject…

A district court held that EPA exceeded its authority under CWA §404(c) when it invalidated an existing U.S. Army Corps of Engineer permit authorizing a mining company to discharge fill material…

The U.S. Supreme Court held that property owners may bring a civil action under the APA to challenge EPA's issuance of a CWA §309 compliance order that directs them to restore their property…

A district court held that EPA violated the CWA when it failed to review Oregon's nonpoint source rules. The nonpoint source provisions create exemptions for many sources of pollution in…

A district court upheld EPA's rule setting numeric nutrient criteria for Florida except in two respects: the stream criteria and the default downstream-protection criteria for unimpaired…

A New York trial court held that the state environmental agency's general permit for stormwater discharges from municipal separate storm sewer systems (MS4) violates the CWA and state law.…

A district court held that a mining company is liable for discharging arsenic and iron into a nearby creek in violation of its NPDES permit. The company did not deny or admit that it is in…

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The D.C. Circuit held that a home builders' association lacked standing to challenge EPA's and the U.S. Army Corps of Engineers' determination that two reaches of the Santa Cruz…