The Mayor of the District of Columbia shall have the power to lay water mains and water pipes and to erect fireplugs and hydrants wherever the same may be in his judgment necessary for the public safety, comfort, or health.
D.C. Code § 34-2401.01
National capital housing authority, low income housing, acquisition, development and disposition of property, see § 6-101.01. Permit and excavation fees, sewer, water and gas main, see § 2-136. Public roads and bridges, jurisdiction in mayor, see § 9-101.02. Taxation, budget estimates, mayor to include expenses of Water Department in annual estimate, see § 47-212. .