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

Is there lead in Colchester's tap water?

NO LEADfound in Colchester Sewer & Water Commission's water at the latest test, in tests since 2026

Too little lead to measure

Water companies that supply Colchester

7 public water companies list Colchester as a place they supply. The biggest is the Colchester Sewer & Water Commission, with about 4,020 people. The highest latest result among Colchester's water companies is 4.7 parts per billion, at Ctwc - Ponemah's water department. None of the 7 with results was above 15 at its latest test. 4 found too little lead to measure. Small ones like Ctwc - Ponemah's water department supply just their own grounds or street; most of Colchester gets its water from the Colchester Sewer & Water Commission. 5 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well. Your water bill names yours.

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