SM City Masinag Turns Rainwater into a Source for Mall Operations

The facility can treat up to 200,000 liters daily, helping reduce demand on local freshwater supplies.

SM City Masinag has installed a rainwater treatment facility designed to supply part of the mall’s water needs, offering an alternative to drawing entirely from conventional freshwater sources.

According to SM Supermalls, the facility can process up to 200 cubic meters, or 200,000 liters, of rainwater per day. It is expected to provide approximately 23,000 cubic meters annually—around one-third of the mall’s annual water consumption.

The project is SM’s second rainwater treatment facility in Luzon, following its installation at SM City Baguio.

Putting collected rainwater to use

The Masinag facility uses a multi-stage process that includes disinfection, filtration, and reverse osmosis. SM says monitoring and testing are incorporated to ensure the treated water meets required standards for potable use in mall operations and tenant activities.

The daily treatment capacity represents what the system can process. Its projected annual contribution reflects the amount SM expects it to supply over a year.

Engr. Liza B. Silerio, SM Supermalls Vice President for Corporate Compliance, said the location’s rainfall made Masinag a strategic choice.

“This facility transforms water runoff into more valuable use, innovating our approach in supporting the community and national water conservation efforts not just during El Niño, but for the future,” Silerio said.

Reducing pressure on shared water sources

The community benefit comes from reducing the mall’s demand on municipal water systems. Using treated rainwater for its own requirements can help ease pressure on freshwater resources also needed by surrounding households and essential services.

The facility supplies mall operations and tenants; the release does not describe a direct water-distribution service for residents.

SM says the project builds on its experience at SM City Baguio, where a rainwater treatment facility has processed more than 65,000 cubic meters since beginning operations in 2022.

The company also positions rainwater treatment within its broader water stewardship and decarbonization efforts, citing the potential to reduce emissions associated with conventional water extraction, pumping, treatment, and distribution.

For SM City Masinag, the practical change is a new source of usable water from rainfall. By meeting part of its needs this way, the mall aims to make its operations less dependent on the freshwater supplies it shares with the wider community.

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