The results of the October 2023 groundwater and surface water PFAS sampling event indicate that PFAS presence at downgradient and cross-gradient monitoring locations at the landfill and at a sampling location on Long Pond. Concentrations at five of the seven groundwater monitoring well locations exceeded applicable MassDEP criteria.
After notification and discussion of the testing results with MassDEP, the Town and CDM Smith will perform a second sampling event in Spring 2024. The sampling seeks to obtain additional data and insights to seasonal fluctuations in results. The Town will continue to work with MassDEP to better understand the situation and address any requirements to reduce or eliminate sources of contamination.