An official website of the United States government.

We've made some changes to 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.

Ground Water and Drinking Water

Safe Drinking Water Hotline

If you have a drinking water question, "Ask a Question" through our online database. You can also submit an online form to send a question or comment directly to EPA.

Drinking water topics:

  • Local drinking water quality
  • Drinking water standards
  • Public drinking water systems
  • Source water protection
  • Large capacity residential septic systems
  • Commercial and industrial septic systems
  • Injection wells
  • Drainage wells

Search the Hotline's question and answer database

Find an answer or "Ask a Question" about drinking water and ground water programs authorized under the Safe Drinking Water Act.