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

Is there lead in Portsmouth's tap water?

4.4PPBparts per billion of lead in Newport-City of's water at the latest test, in tests since 2025

Under the legal limit of 15 ppb

Water companies that supply Portsmouth

2 public water companies list Portsmouth as a place they supply. The biggest is Newport-City of, with about 42,155 people. The highest latest result among Portsmouth's water companies is 4.8 parts per billion, at the Portsmouth Water & Fire District. None of the 2 with results was above 15 at its latest test. Small ones like Portsmouth Water & Fire District supply just their own grounds or street; most of Portsmouth gets its water from Newport-City of. Your water bill names yours.

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