
Below 15, the level that requires action
2 public water companies list Osawatomie as a place they supply. The biggest is Osawatomie's water department, with about 4,280 people. The highest latest result among Osawatomie's water companies is 1.3 parts per billion, at Osawatomie's water department. None of the 2 with results was above 15 at its latest test.