Dover, MA Water Supply: The Hidden Contamination Risks Every Homebuyer Must Know

Dover's reliance on private wells and septic systems creates multiple water quality risks: (1) PFAS 'forever chemicals' detected at levels approaching the 20 ppt state limit in public systems and some private wells; (2) Nitrate contamination from septic systems affecting groundwater in developed areas, with Dover enforcing a strict 5 mg/L local standard (vs. 10 mg/L federal); (3) Naturally occurring minerals (iron, manganese) causing aesthetic issues. Dover's contamination profile is typical for well-reliant MetroWest towns—not uniquely severe, but requiring thorough testing and potential treatment systems.