Is there lead in Wellesley's tap water?
3.5PPBLead in Wellesley Water Division's water at the latest test, from July to December 2025
Below 15, the level that requires action
Below 15, the level that requires action
2 public water companies list Wellesley as a place they supply. The biggest is Wellesley Water Division, with about 29,550 people. The highest latest result among Wellesley's water companies is 4.3 parts per billion, at Wellesley College. None of the 2 with results was above 15 at its latest test.