The initial operation involves one converted lagoon within the La Mesa WTP compound and forms part of Maynilad’s efforts to improve operational flexibility during periods of lower water inflow from the Angat–Ipo Dam system.
Supporting water supply stability
The project, targeted for full completion by June 2026, involves repurposing former sludge lagoons into a six-meter-deep impounding reservoir with a total storage capacity of up to 200 million liters of raw water, Maynilad said in a statement.
Previously used for sludge handling during the treatment process, the lagoons have been transformed into a dedicated raw water storage facility designed to support overall system operations.
Once fully operational, the reservoir will provide La Mesa Water Treatment Plant 1 with an additional raw water buffer, helping sustain stable plant operations and continuous water service during periods of reduced inflow.
The facility may also function as a settling basin during periods of elevated turbidity, allowing suspended particles in raw water to settle naturally before treatment. This is expected to support more efficient water treatment operations, especially during challenging raw water conditions.
Improving system resilience
Maynilad chief operating officer Christopher Jaime T. Lichauco said the facility enhances the company’s ability to manage fluctuations in raw water supply and quality.
“This facility enhances our ability to manage raw water variability and maintain stable treatment operations, particularly during periods of lower inflow or higher turbidity,” Lichauco said.
Once completed, the facility will become Maynilad’s first dedicated raw water storage reservoir, complementing its existing 38 treated water reservoirs across the West Zone.
Maynilad said it continues to invest in infrastructure projects aimed at improving system resilience and ensuring reliable water service for customers across its concession area in Metro Manila and Cavite. —Ed: Corrie S. Narisma
