
Below 15, the level that requires action
3 public water companies list Cortlandt as a place they supply. The biggest is the Cortlandt Consolidated Water District, with about 28,369 people. The highest latest result among Cortlandt's water companies is 1.4 parts per billion, at the Cortlandt Consolidated Water District. None of the 2 with results was above 15 at its latest test. 1 has no lead test results on file.