The Supreme Court of Hawaii vacated and remanded the interim instream flow standards set by Hawaii's Commission on Water Resource Management for the Waihe'e River and the Waiehu, 'Iao, and Waikapu streams, collectively referred to as Na Wai 'Eha, or "the four great waters of Maui." In considering th...
The Fifth Circuit vacated EPA's disapproval of Texas's flexible permit program under the CAA. Texas submitted the program to EPA as a revision to its SIP and as a new feature of the state's minor new source review (NSR) regime. Under the program, modifications to facilities could be made without add...
The Tenth Circuit dismissed as moot an environmental group's CAA citizen suit against an energy company for building a new coal-fired power plant in Pueblo, Colorado, without a valid construction permit. Although the project initially complied with all applicable federal and state laws when construc...
The Sixth Circuit vacated EPA's determination that a natural gas operation's plant and production wells separately located within a 43-square-mile area constitute a single stationary source under the CAA Title V permitting program. EPA concluded that the facilities satisfy the regulatory requirement...
The Eighth Circuit held that costs a developer incurred to reduce pollution on a property it owns in Brainerd, Minnesota, that had formerly been owned by a railway company were not removal costs and thus not recoverable under the Minnesota Environmental Response and Liability Act (MERLA). Although n...
The Fifth Circuit upheld an EPA rule partially approving and partially disapproving revisions to Texas' SIP concerning civil penalties for excess emissions resulting from startup, shutdown, and malfunction (SSM) activities. Environmental petitioners sought review of EPA's decision to approve a revis...
A Pennsylvania appellate court partially struck down Act 13, which pertains to oil and gas operations in the Marcellus Shale, as unconstitutional. The Act repealed Pennsylvania’s Oil and Gas Act and replaced it with a codified statutory framework regulating oil and gas operations in the Commonweal...
The D.C. Circuit denied petitions challenging EPA's one-hour primary NAAQS for nitrogen dioxide (NOx). The new one-hour primary NAAQS requires that “the three-year average of the annual 98th percentile of the daily maximum one-hour average concentration be less than or equal to 100 parts per billi...