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