WESTFIELD — For years, Kristen L. Mello has been advocating against so-called forever chemicals, or PFAS, which seeped into the ground decades ago from firefighting foam at Barnes Air National Guard Base and tainted Westfield’s drinking water.
As the city continues to grapple with that pollution, Mello and other residents are rallying against what they see as a new environmental threat: A large-scale lithium-ion battery storage project.
