Manila Water Strengthens Pasig Sewer Network

Manila Water has expanded its wastewater management infrastructure in Pasig City with the completion of the North Pasig Package 2 Sta. Monica Network and Lift Station Projects, reinforcing its commitment to public health, environmental protection, and sustainable urban development across its East Zone concession.

The completed facilities are part of the company’s North and South Pasig Sewerage System under the Three River Masterplan, a long-term initiative aimed at restoring the Pasig-Marikina-San Juan River System while increasing access to modern sewer and sanitation services.

The Sta. Monica Network Project includes a 165-meter gravity main and a 1.38-kilometer force main, with pipelines installed at depths of two to five meters using open-cut excavation techniques. Designed to improve wastewater collection and transport, the new infrastructure will help ensure that sewage from households is safely conveyed to treatment facilities instead of being discharged into nearby waterways.

By expanding sewer coverage, the project helps reduce the risk of water contamination and waterborne diseases while promoting cleaner neighborhoods and healthier living conditions. It also supports efforts to protect rivers and creeks by preventing untreated wastewater from polluting aquatic ecosystems.

Once the entire North and South Pasig Sewerage System becomes fully operational, it is expected to benefit approximately 652,000 residents in Pasig City and portions of Quezon City, Mandaluyong City, Taytay, and Cainta, Rizal. In Pasig alone, the project is projected to provide sewer service to about 60 percent of the city, significantly increasing access to reliable sanitation infrastructure.

Wastewater collected through the expanded sewer network will be treated at the Ilugin Sewage Treatment Plant before being discharged in accordance with the Department of Environment and Natural Resources’ Class C water quality standards. Proper treatment helps improve river water quality, supports aquatic life, and contributes to the long-term rehabilitation of waterways that serve surrounding communities.

“By expanding access to proper wastewater treatment, we help ensure that more communities benefit from cleaner surroundings, reduced health risks, and waterways that can sustain life and support future generations,” said Manila Water Corporate Communications Department Head Dittie Galang.

The project also supports the Philippine Clean Water Act of 2004, the Supreme Court’s Mandamus on Manila Bay rehabilitation, the Metropolitan Manila Development Authority’s environmental initiatives, and Pasig City’s sustainability programs.

As Manila Water continues investing in sewerage infrastructure, the company aims to connect more households to safe wastewater services, helping create healthier communities while contributing to the restoration and preservation of the country’s vital river systems.