Emily J. Dupraz

First Circuit Vacates Air Permit Due to Inadequate BACT Analysis

On June 3, 2020, the U.S. Court of Appeals for the First Circuit vacated an air permit issued by the Massachusetts Department of Environmental Protection (DEP) for the construction of a new compressor station proposed by Algonquin Gas Transmission as part of its Atlantic Bridge natural gas pipeline project and remanded the matter to the agency for further analysis.  Town of Weymouth v. Massachusetts Department of Environmental Protection, et al., No. 19-1794 (Jun. 3, 2020).  In reviewing the agency’s decision, the First Circuit concluded that the DEP’s Best Available Control Technology (BACT) analysis was inadequate because the Agency failed to undertake its own independent analysis of the cost-effectiveness of the various options of controlling air emissions and instead relied on the Federal Energy Regulatory Commission’s (FERC) analysis.  The court also decided several other environmental arguments raised by the Town of Weymouth and other petitioners in favor of the DEP, including environmental justice and noise concerns, among other issues, which are addressed in a