
Below 15, the level that requires action
2 public water companies list Doniphan as a place they supply. The biggest is Doniphan's water department, with about 2,000 people. The highest latest result among Doniphan's water companies is 3.9 parts per billion, at Doniphan's water department. None of the 2 with results was above 15 at its latest test. 1 found too little lead to measure.