Watercolour of a small house at dusk, with the water meter cover in the sidewalk out front.

Is there lead in Groton's tap water?

1.1PPBLead in Groton Utilities's water at the latest test, in 2026

Below 15, the level that requires action

Water companies that supply Groton

7 public water companies list Groton as a place they supply. The biggest is Groton Utilities, with about 30,200 people. The highest latest result among Groton's water companies is 6.1 parts per billion, at Mystic Village Apartments. None of the 7 with results was above 15 at its latest test. 4 found too little lead to measure.

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