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

Is there lead in Mundelein's tap water?

4.3PPBparts per billion of lead in Mundelein's water at the latest test, in tests since 2026

Under the legal limit of 15 ppb

Water companies that supply Mundelein

2 public water companies list Mundelein as a place they supply. The biggest is Mundelein's water department, with about 31,500 people. The highest latest result among Mundelein's water companies is 4.3 parts per billion, at Mundelein's water department. None of the 2 with results was above 15 at its latest test. Small ones like Dayspring Bible College supply just their own grounds or street; most of Mundelein gets its water from Mundelein's water department. Your water bill names yours.

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