A California appellate court held that California's Commission on State Mandates erred in ruling that certain requirements set forth in a municipal stormwater sewer permit for Los Angeles County constituted unfunded state mandates subject to reimbursement under the state constitution. Although the p...

A Wisconsin court held that the state environmental agency should have considered impacts on downstream water quality when it issued a state pollutant discharge elimination system permit to an industrial dairy processing plant. An environmental group challenged the permit, arguing that it would allo...

The Supreme Court of Kansas reversed and remanded the Kansas Department of Health and Environment's decision to issue a prevention of significant deterioration (PSD) permit to a power company to construct an 895-megawatt coal-fired power plant. An environmental group filed suit against the state age...

The Eighth Circuit vacated and remanded EPA's best available retrofit technology (BART) determination for a large power plant in North Dakota, but otherwise upheld EPA's partial disapproval of two SIPs submitted by North Dakota to meet the CAA's visibility requirements as well as the Agency's federa...

The Ninth Circuit held that the California Air Resource Board (CARB) low carbon fuel standard's regulation of ethanol does not facially discriminate against out-of-state commerce. CARB treats all ethanol within each regional category the same, and its decision to draw one of the regional categories ...

A California court issued a tentative decision upholding the California Air Resource Board's (CARB's) authority to sell greenhouse gas allowances at auction under the California Global Warming Solutions Act of 2006, also known as Assembly Bill 32 (AB 32). The court tentatively agreed that the auctio...

The Supreme Court of Washington upheld an administrative order the state environmental agency issued to a farmer, directing him to take several steps to curb pollution of a creek that runs through his property. A lower court invalidated the order, ruling that it was unsupported by substantial eviden...

The Seventh Circuit reversed a lower court decision finding a Wisconsin mine operator liable under the CWA for discharging copper into navigable waters without a permit. The CWA's permit shield provision provides that if a NPDES permit holder discharges pollutants in accordance with the terms of its...

The Second Circuit upheld a lower court's permanent injunction barring the state of Vermont from bringing an enforcement action, or taking other action, to compel the Vermont Yankee nuclear power plant to shut down after its license expires on March 21, 2012, if it fails to obtain legislative approv...

The Third Circuit, in a case involving a contaminated site in New Jersey, affirmed in part and reversed in part a lower court decision finding the former owner of the site liable to the current owner under CERCLA but not RCRA. The lower court ruled that the current owner's claim for injunctive relie...