The D.C. Circuit denied two petitions to review EPA attainment designations for the 2010 sulfur dioxide NAAQS. An environmental group argued that the Agency should have designated Gallia County, Ohio, as a nonattainment area rather than an unclassifiable area because air quality modeling data submit...

The Sixth Circuit held that seepage from a coal-fired power plant that reached a nearby lake violated RCRA, but not the CWA. Environmental groups argued that the chemicals being stored in coal ash ponds contaminated the surrounding groundwater, which in turn contaminated a nearby lake, in violation ...

The Ninth Circuit affirmed a district court's ruling that a Canadian smelter company that dumped several million tons of industrial waste into the Columbia River was liable for a Native American tribe's response costs. The company argued that CERCLA did not allow the tribe to recover its costs of es...

A district court granted in part an environmental group's request to compel EPA to produce guidelines for commercial or industrial solid waste incinerators (CISWI) and other categories of solid waste incinerators (OSWI). The group argued that the Agency failed to comply with nondiscretionary duties ...