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

Is there lead in Greenwich's tap water?

NO LEADfound in Aquarion-Eastern Fairfield County's water at the latest test, in tests since 2026

Too little lead to measure

Water companies that supply Greenwich

4 public water companies list Greenwich as a place they supply. The biggest is Aquarion-Eastern Fairfield County, with about 351,756 people. None of the 4 with results was above 15 at its latest test. 4 found too little lead to measure. Small ones like Brunswick School (Lower & Lower Middle) supply just their own grounds or street; most of Greenwich gets its water from Aquarion-Eastern Fairfield County. Your water bill names yours.

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