Water Data and Tools

  • Modernizing the Water Quality Portal

    Get ready for improvements to one of our most popular web applications! The EPA and USGS are partnering to modernize the vital Water Quality Portal (WQP) and advance a shared vision to deliver standardized, high-quality water data to the public. Learn more about the upcoming changes.

  • Water Data and Tools

    Using water data and tools to help EPA protect our waters. 

Discover how data and tools help EPA protect and restore our waters to ensure that they are drinkable, fishable and swimmable. Learn about the following categories of water data tools:

Report to Congress

 

Contact Us About Water Data and Tools to ask a question, provide feedback, or report a problem.
Last updated on August 24, 2026