The primary focus of the meeting was on the development of regulations for data centers, with the board engaged in an extensive review of the draft bylaw. They discussed multiple facets, including the definition of “gross building area” and “floor area,” and sought to clarify these terms to avoid confusion. Participants debated whether a distinction between two-dimensional and three-dimensional measurements should be maintained or simplified within the document. Concerns were raised about the potential overlap between these definitions, leading to a suggestion that the language might need to be streamlined for clarity.

Central to the data center discussion was the issue of battery placement and associated fire safety measures. One member voiced significant concern over the potential contamination of the town’s aquifer from lithium batteries, advocating for a bylaw requiring the separation of these batteries from other parts of a building. The high combustion temperatures of lithium batteries were highlighted as a risk factor, with water from fire suppression systems posing a potential contamination threat if leakage occurred. This member stressed the importance of safeguarding the aquifer, stating that protecting this vital resource should take precedence over the economic benefits of data centers.

The board also considered the fire chief’s perspective on lithium battery risks, noting that the chief’s concerns were more focused on smaller, everyday devices like tools and scooters rather than the larger batteries typically used in data centers. It was mentioned that these batteries generally comply with fire and wiring codes, which mitigates some concerns.

In addition to battery safety, the board deliberated on how to categorize data centers under zoning classifications, debating whether small centers should fall under business categories and larger centers under industrial classifications. The discussion touched on the potential for accessory structures to circumvent size limitations, with some members cautioning against multiple buildings on a single plot that could collectively exceed intended regulatory limits.

The meeting also explored the procedural aspects of dissenting opinions and minority reports. A discussion arose about how dissenting views could be documented and shared within the board’s processes and at town meetings. While Robert’s Rules of Order provide some guidance on documenting dissent in committee settings, the approach to minority reports at town meetings remains less clear. Members considered how dissent might be expressed during public debates without being misconstrued as the board’s official stance. There was a suggestion to include minority opinions in a policy book to ensure procedural clarity for future boards.

Another topic was the implications of fire response protocols, particularly regarding the use of firefighting foams containing per- and polyfluoroalkyl substances (PFAS). Concerns were raised about the environmental impact of these chemicals, with some members advocating for a provision in the bylaw to prohibit their use in firefighting within the town. However, others pointed out the practical challenges of enforcing such restrictions and the potential conflict with existing fire codes.