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.

Ground Water and Drinking Water

Drinking Water Emergency Response

While it rarely occurs, your drinking water may become unsafe to drink because of a natural disaster or high levels of contaminants in the source where your drinking water comes from. If there is a potential problem with your drinking water, whether it’s related to a natural disaster or not, your supplier must notify you. The information below is to help identify some of the issues you may face preparing for, during and after an event that can directly impact your health and the health of your family.

Top of Page