The Curayao reservoir is one of the six (6) reservoirs located in Manila Water's Marikina Grid. These reservoirs have been serving as storage for water supply and for emergency response for Marikina and neighboring towns of San Mateo and Rodriguez.

More than 13,500 families in the Rizal service area of Manila Water are now being provided with improved water quality and supply, as the company completes 40 projects in its intensified expansion program.

Manila Water continues to expand its service coverage in the East Zone as it now counts 1,132,976 water service connections as of June 2022. This translates to 7.4 million residents in the eastern part of Metro Manila and the entire province of Rizal receiving world-class water and wastewater services. Of these total number of connections, 95% or 1,077,017 are domestic customers while 5% or 54,399 are commercial and industrial customers.

Manila Water honored three (3) outstanding environmental programs and eighty-four (84) barangays within the East Zone concession area that have reached and/or exceeded desludging targets for 2021 as the company marked the tenth year of its ‘Toka Toka Para Sa Malinis na Ilog’ or ‘Toka Toka’ advocacy. As the first and only environmental movement focused on wastewater management which began in 2012, Toka Toka aims to educate, engage, and influence the public to do its share or ‘Toka’ to clean our waterways by connecting to existing sewer lines, availing of desludging services, practicing proper solid waste management, and participating in various sewerage and sanitation programs.

In July 2022, Manila Water Company, a Philippine-based water and wastewater services company, with presence in Southeast Asia and the Kingdom of Saudi Arabia, received an improved overall ESG Risk Rating of 27.1 from Sustainalytics, one of the world’s leading ESG research and analysis companies. The score puts Manila Water in the Medium-Risk category and places at 11th among the 50 water utility sub-industry. Sustainalytics evaluated Manila Water’s policies, programs, and strategies on ten Environment, Social, Governance (ESG) topics that are material to the company.