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

Is there lead in Chelmsford's tap water?

2.4PPBparts per billion of lead in Chelmsford Water District's water at the latest test, in 2025

Under the legal limit of 15 ppb

Water companies that supply Chelmsford

3 public water companies list Chelmsford as a place they supply. The biggest is the Chelmsford Water District, with about 28,750 people. The highest latest result among Chelmsford's water companies is 3.5 parts per billion, at the North Chelmsford Water District. None of the 3 with results was above 15 at its latest test. 1 found too little lead to measure. Small ones like East Chelmsford Water District supply just their own grounds or street; most of Chelmsford gets its water from the Chelmsford Water District. Your water bill names yours.

The Chelmsford Water Districtabout 28,750 people · latest lead test: 2.4 ppb · 978-256-2931
The North Chelmsford Water Districtabout 7,660 people · latest lead test: 3.5 ppb · 978-251-3931
The East Chelmsford Water Districtabout 2,800 people · latest lead test: none found · 978-453-0121

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