Manila Water President and Chief Executive Officer Jose Victor Emmanuel A. de Dios and Department of Public Works and Highways Secretary Manuel M. Bonoan grace the ceremonial commissioning of the Novaliches-Balara Aqueduct 4 (NBAQ4) at the reservoir in La Mesa Dam in Quezon City on January 27, 2023.

The new aqueduct that will convey up to 1,000 million liters of water per day (MLD) is part of the rehabilitation of existing aqueducts to help ensure continuous water supply for more than 7 million customers in the East Zone and will pave the way for the inspection, assessment and subsequent rehabilitation of three other existing aqueducts, which have been operating since 1929, 1956 and 1968, respectively.

The NBAQ4 project involves the construction of a new intake facility and access bridge at the La Mesa reservoir, a 7.3-kilometer underground aqueduct with a 3.1-meter diameter passing under Commonwealth Avenue, and an outlet portal and downstream distribution works at the Balara treatment plant.