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Clean Water Act (CWA)

Columbia Riverkeeper v. Wheeler

The Ninth Circuit affirmed judgment for environmental groups in a CWA challenge to compel EPA to develop and issue long-overdue temperature TMDLs for the Columbia and Snake Rivers. The groups argued that inaction by Oregon and...

American Waterways Operators v. Wheeler

A district court denied motions to remand and vacate EPA's decision to allow a no-discharge zone in Puget Sound. A tugboat, towboat, and barge industry group argued that EPA erred in determining that adequate pump-out facilities were...

Reissuance of an NPDES/SDS Permit to U.S. Steel Corp.

A state appellate court reversed the Minnesota Pollution Control Agency's decision to reissue a NPDES permit for an iron ore mine in northeast Minnesota. An environmental group and Indian band challenged the decision, arguing that the...

Blue Water Baltimore v. Wheeler

A district court denied summary judgment in a challenge to EPA's approval of Maryland's 2018 water quality report, which reclassified 139 impairment listings based on TMDLs set by the Agency for the entire Chesapeake Bay. Environmental...

Overboard? The Complexity of Traditional TMDL Calculations Under the Clean Water Act

The Clean Water Act (CWA) requires states to calculate total maximum daily loads (TMDLs) of individual pollutants that impair their waters. But the means by which TMDLs are calculated are imprecise, because (1) it is difficult to...

Conservation Law Foundation v. Longwood Venues & Destinations, Inc.

A district court upheld EPA's interpretation that the CWA does not regulate discharges into groundwater that is hydrologically connected to navigable waters in a lawsuit concerning a wastewater treatment facility on Cape Cod. An...

Puget Soundkeeper Alliance v. Wheeler

A district court held that environmental groups lacked standing in their challenge to EPA's exclusion of certain waste treatment systems from the definition of navigable waters under the CWA. The groups argued that they had...

Center for Biological Diversity v. U.S. Army Corps of Engineers

The Eleventh Circuit affirmed a district court decision upholding the U.S. Army Corps of Engineers' issuance of four CWA §404 permits to a fertilizer manufacturer engaged in phosphate mining in Florida. The district court found nothing...

Oklahoma v. United States Environmental Protection Agency

The Tenth Circuit denied a motion to hold in abeyance a lawsuit concerning EPA and the U.S. Army Corps of Engineers' 2015 Clean Water Rule. It did decide, however, to consider whether to dismiss the case in light of the Trump...

Pacific Coast Federation of Fishermen's Ass'ns v. Glaser

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...

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