Is there lead in Sioux City's tap water?
2PPBLead in Sioux City Water Supply's water at the latest test, from 2023 to 2025
Below 15, the level that requires action
Below 15, the level that requires action
2 public water companies list Sioux City as a place they supply. The biggest is Sioux City Water Supply, with about 85,791 people. The highest latest result among Sioux City's water companies is 2 parts per billion, at Sioux City Water Supply. None of the 2 with results was above 15 at its latest test.