Manila Water has expanded its sewer and sanitation services in its East Zone concession with the finish of the North Pasig Package 2 Sta. Monica Network and Lift Station Projects. These facilities form part of the larger North and South Pasig Sewerage System under the company’s Three River Masterplan, a long-term initiative aimed at rehabilitating the Pasig-Marikina-San Juan River System while delivering better sanitation access to more customers.
The Sta. Monica project includes a 0.165-kilometer gravity main and a 1.38-kilometer force main, built using open-cut excavation methods. Pipes are installed at depths of two to five meters, with sizes ranging from 250 to 400 millimeters. Once fully operational, the complete sewerage system is set to serve around 652,000 people across Pasig City and portions of Quezon City, Mandaluyong City, Taytay, and Cainta, Rizal. About 60 percent of Pasig City will be covered by the system alone, greatly increasing the number of households with access to proper sanitation.
Collected wastewater will be sent to the Ilugin Sewage Treatment Plant for processing, meeting Department of Environment and Natural Resources standards for Class C water quality before being released. This prevents untreated waste from flowing into local creeks and rivers, lowers the risk of waterborne illnesses, safeguards public health, and protects aquatic ecosystems. Cleaner waterways will also eventually support activities like boating and fishing.
“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 Dittie Galang, head of Manila Water’s Corporate Communications Department.
The project aligns with key regulations and programs including the Philippine Clean Water Act of 2004, the Supreme Court Mandamus for Manila Bay rehabilitation, and efforts by the Metropolitan Manila Development Authority. It also supports Pasig City’s goal of building a greener, more sustainable urban area. Manila Water noted that developing sewerage infrastructure remains a top priority as it works toward full sanitation coverage across its East Zone service area.






