A district court held that environmental groups may pursue a RCRA claim against the current and former owners of a steel mill for disposing of hazardous waste without a permit, but dismissed the groups' remaining RCRA and CWA claims. The groups' claims that the mill has released and continues t...

California's highest court upheld a regional water board's issuance of a NPDES permit authorizing a power plant to draw cooling water from an adjacent harbor and slough. An environmental group filed suit, claiming that the permit did not satisfy the "best technology available" requirement of CWA...

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 developing a TMDL for a particular pollutant, the CWA and its implementing regulations require the state—in de...

A district court held that environmental groups lack standing to challenge BLM's approval of two quarterly oil and gas lease sales under the APA, NEPA, FLPMA, and the Mineral Leasing Act. The groups claimed that BLM failed to meaningfully address the issue of climate change in approving the leases, ...

The D.C. Circuit denied trade associations' petition for review of a nationwide permit issued by EPA for the discharge of pollutants incidental to the normal operation of vessels. The associations, which represent commercial ship owners and operators, raised a number of procedural challenges, al...

The Fifth Circuit vacated portions of EPA's 2008 concentrated animal feeding operations (CAFOs) rule. The rule requires CAFOs that propose to discharge to apply for an NPDES permit. But there must be an actual discharge into navigable waters to trigger the CWA's requirements. EPA, therefore,...

A California court ordered the California Air Resources Board (CARB) to set aside its "functional equivalent document" that evaluates the environmental consequences of its climate change scoping plan and to enjoin implementation of the scoping plan until the agency complies with its obligati...

The Ninth Circuit held that a local flood district is liable under the CWA for discharging polluted stormwater into the Los Angeles and San Gabriel Rivers. Environmental groups filed suit against the flood district as well as against a county for unlawful stormwater discharges into the Los A...