The FMWR consists of the following Departments at the headquarters in Abuja Department of Water Supply (DWS) Department of Irrigation and Drainage (DID) Department of Dams and Reservoir Operations (DDRO) Department of Water Quality and Sanitation (DWQS) Department of Water Resources Planning, and Technical Support Services Department of River Basin Operation and Inspectorate Department of Human Resources Department of Finance and Accounts Department of Procurement