THE Metropolitan Waterworks and Sewerage System (MWSS) celebrates its 50th year with renewed enthusiasm to properly operate and maintain the waterworks system and to build the New Centennial Water source, Kaliwa Dam Project.
On June 19, 1971, Republic Act 6234 was enacted. The National Waterworks and Sewerage System (Nawasa) was dissolved and the MWSS was created with a mandate "to ensure an uninterrupted and adequate supply and distribution of potable water for domestic and other purposes at just and equitable rates."