Is there lead in Boston's tap water?
5.9PPBLead in Mwra's water at the latest test, in 2025
Below 15, the level that requires action
Below 15, the level that requires action
2 public water companies list Boston as a place they supply. The biggest is Mwra, with about 2,580,000 people. The highest latest result among Boston's water companies is 8 parts per billion, at the Boston Water and Sewer Commission (Mwra). None of the 2 with results was above 15 at its latest test.