Non-Community Public Water Systems consist of two categories: transient and non-transient. A Transient supply can be defined as a supply that serves a non-community population of 25 or more individuals at least 60 days per year. A Non-Transient supply can be defined as a non-community water system that serves the same 25 or more individuals at least 6 months a year.

The Division of Environmental Health routinely monitors Non-Community Water Systems to ensure compliance with Illinois EPA Drinking Water Standards. for Coliform and Nitrates. Please visit the following links to learn more about the Non-Community Drinking Water Program.