
Below 15, the level that requires action
3 public water companies list Yorktown as a place they supply. The biggest is the Yorktown Consold. Water District#1, with about 36,000 people. The highest latest result among Yorktown's water companies is 1.2 parts per billion, at the Yorktown Consold. Water District#1. None of the 3 with results was above 15 at its latest test.