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About EPA

Organization Chart for the Office of Water (OW)

  • Resource Management
    Staff
  • OW Assistant Administrator and
    Deputy Assistant Administrator

    202-564-5700

    About OW

  • Management and Operations Staff
  • Water Policy
    Staff
  • Project Management
    Office
  • Office of Ground Water and Drinking Water (OGWDW)

    202-564-3750

    About OGWDW

    Standards and Risk Management Division
    Drinking Water Protection
    Division
    Water Security Division
  • Office of Science and Technology (OST)

    202-566-0430

    About OST

    Engineering and Analysis Division
    Standards and Health Protection Division
    Health and Ecological Criteria Division
  • Office of Wastewater Management (OWM)

    202-564-0748

    About OWM

    Municipal Support Division
    Water Permits Division
  • Office of Wetlands, Oceans and Watersheds (OWOW)

    202-566-1730

    About OWOW

    Wetlands Division
    Assessment and Watershed Protection Division
    Oceans and Coastal Protection Division

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