
Below 15, the level that requires action
6 public water companies list Mauston as a place they supply. The biggest is Mauston Waterworks, with about 4,456 people. The highest latest result among Mauston's water companies is 4.3 parts per billion, at Kountry Aire Est MHP III. None of the 6 with results was above 15 at its latest test. 5 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well.