The Barnstable County Assembly of Delegates Standing Committee on Finance convened on September 15, 2025, to discuss significant developments regarding the municipal fire training site and its ongoing environmental remediation efforts. The meeting highlighted two major components of the project: the Phase 2 site investigation and the installation of a permeable reactive barrier.

The Phase 2 site investigation, conducted in accordance with the Massachusetts contingency plan, aims to assess and remediate contamination at the site. Progress has been made with the consulting firm GZA, with completion anticipated by winter or spring, although potential delays may arise from decisions by the Massachusetts Department of Environmental Protection (MassDEP). Monthly technical sessions are being held with local stakeholders, including the towns of Barnstable and Yarmouth, to ensure all parties are informed about the investigation's findings and methodologies.

Key aspects of the investigation include an ecological risk assessment to evaluate the impact of PFAS (per- and polyfluoroalkyl substances) on local wildlife and the development of a groundwater model to understand the flow of contaminants. Recent public meetings have provided updates on the nature and extent of the contamination plume, which is being monitored closely as it affects nearby drinking water sources.

In addition to the site investigation, the committee discussed the installation of a permeable reactive barrier designed to mitigate the spread of PFAS. This barrier will be created by injecting a liquid carbon solution into the ground, which will help to clean the water as it passes through. A pilot test conducted prior to installation showed promising results, with water downstream of the barrier showing non-detectable levels of contaminants.

The committee emphasized the importance of these efforts not only for environmental protection but also for cost savings related to water treatment operations. The ongoing collaboration among local authorities and environmental agencies aims to ensure the safety and quality of water resources in the region.

As the project progresses, the committee will continue to monitor developments and engage with the community to provide updates on the remediation efforts and their implications for public health and the environment.