
Below 15, the level that requires action
2 public water companies list Holden as a place they supply. The biggest is Johnson County Pwsd 2, with about 12,490 people. The highest latest result among Holden's water companies is 1.9 parts per billion, at Johnson County Pwsd 2. None of the 2 with results was above 15 at its latest test. 1 found too little lead to measure.