We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

EPA's website will operate in a diminished capacity on Saturday Feb 17, 2018 from 8:00 a.m. to noon EST for routine maintenance. Some services, such as search, may be temporarily unavailable for brief periods during this time. We apologize for any inconvenience.

Private Drinking Water Wells

The EPA does not regulate private drinking water wells. Many states and towns do not require sampling of private wells after installation. It is the responsibility of the homeowner to maintain the safety of their water. This website provides information to help homeowners care for their private wells and protect their health.

State Resources