Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Guidance
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. About EPA

Organization Chart for the Office of Water

 
Office of Water

About the Office of Water

 
Office of the Ground Water and Drinking Water (OGWDW)
  • Drinking Water Capacity and Compliance Assistance Division
  • Drinking Water Infrastructure Development Division
  • Standards and Risk Management Division
  • Drinking Water Science and Engineering Division
Office of Water Emergency Response and Cybersecurity (OWERC)
  • Preparedness and Response Division
  • Risk and Threat Analysis Division
  • Cybersecurity Division
Office of Wastewater Management (OWM)
  • Water Infrastructure Division
  • Water Permits Division
  • WIFIA Division
  • Engineering and Science Division
Office of Wetlands, Oceans and Watersheds (OWOW)
  • Watershed Restoration, Assessment, and Protection Division
  • ​Oceans, Wetlands, and Communities Division
  • Standards and Health Protection Division
  • Health and Ecological Assessment Division

About EPA

  • Our Mission and What We Do
  • EPA Organization Chart
  • Headquarters Offices
    • Office of the Administrator
    • Office of Air and Radiation
    • Office of Chemical Safety and Pollution Prevention
    • Office of Enforcement and Compliance Assurance
    • Office of Finance and Administration
    • Office of General Counsel
    • Office of Inspector General
    • Office of International and Tribal Affairs
    • Office of Land and Emergency Management (OLEM)
    • Office of Research and Development
    • Office of Water
  • Regional Offices
  • Labs and Research Centers
  • EPA History
Contact EPA
Contact EPA to ask a question, provide feedback, or report a problem.
Last updated on November 17, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.