
Below 15, the level that requires action
7 public water companies list Schodack as a place they supply. The biggest is Castleton's water department, with about 2,413 people. The highest latest result among Schodack's water companies is 6.4 parts per billion, at Nassau (V). None of the 7 with results was above 15 at its latest test. 4 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well.