noun
water and sewer services; water supply and sewerage
Refers to the combined public utility systems for water supply (上水道) and sewerage/drainage (下水道). Often used in administrative, municipal, and infrastructure contexts.
この地域の上下水道は市が管理しています。
The city manages the water and sewer services in this area.
上下水道の
The development of water and sewer infrastructure is lagging behind.