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

Is there lead in Oshkosh's tap water?

6.1PPBparts per billion of lead in Oshkosh Waterworks's water at the latest test, from January to June 2025

Under the legal limit of 15 ppb

Water companies that supply Oshkosh

2 public water companies list Oshkosh as a place they supply. The biggest is Oshkosh Waterworks, with about 63,000 people. The highest latest result among Oshkosh's water companies is 6.1 parts per billion, at Oshkosh Waterworks. None of the 2 with results was above 15 at its latest test. Small ones like Algoma Tn Sanitary District 1 supply just their own grounds or street; most of Oshkosh gets its water from Oshkosh Waterworks. Your water bill names yours.

Oshkosh Waterworksabout 63,000 people · latest lead test: 6.1 ppb
The Algoma Tn Sanitary District 1about 3,935 people · latest lead test: 0.3 ppb

Next: is my pipe lead? · who pays? · which filter?