
Below 15, the level that requires action
3 public water companies list Hinsdale as a place they supply. The biggest is the Hinsdale Town Water District, with about 350 people. The highest latest result among Hinsdale's water companies is 0.8 parts per billion, at Willow Creek. None of the 3 with results was above 15 at its latest test. 1 found too little lead to measure.