Overview
Maynilad Pasay Water Reclamation Facility is an operational wastewater treatment plant in Pasay, Philippines. It serves the Manila metropolitan area and discharges treated effluent into Manila Bay.
Maynilad Pasay Water Reclamation Facility is a key wastewater treatment plant located in Pasay City, part of the Manila metropolitan area in the Philippines. The plant is operated by Maynilad Water Services, Inc., the concessionaire for the West Zone of Metro Manila. It serves a densely populated urban region, contributing to the sanitation and environmental management of the capital. The plant operates under the regulatory framework of the Philippine Clean Water Act (Republic Act 9275) and the Department of Environment and Natural Resources (DENR) administrative orders. For a facility of this scale in a highly urbanized area, advanced treatment is typically required to meet effluent standards for discharge into coastal waters. The plant's operational status indicates it is actively treating wastewater from the surrounding communities. Treated effluent from the facility is discharged into Manila Bay, a major water body that ultimately connects to the South China Sea. Manila Bay is ecologically significant, supporting diverse marine life and serving as a critical fishing ground. The plant plays a vital role in reducing pollution loads to the bay, helping to protect water quality and aquatic habitats in this important coastal ecosystem.
Environmental context
The plant discharges into Manila Bay, a semi-enclosed estuary that receives drainage from several rivers in the Manila metropolitan area. Manila Bay connects to the South China Sea via a narrow opening. The bay supports diverse marine life, including fish, mollusks, and crustaceans, and is an important fishing ground for local communities. However, it faces significant pollution pressures from urban runoff and industrial discharges, making the plant's treatment role critical for maintaining water quality and ecosystem health.
Frequently asked questions
The facility is located in Pasay City, Philippines, within the Manila metropolitan area. It serves the West Zone of Metro Manila under the concession of Maynilad Water Services.
The plant serves a densely populated urban area in Metro Manila. While specific population figures are not disclosed, it is part of the Maynilad concession area that covers over 9 million people across several cities.
Treated wastewater from the facility is discharged into Manila Bay, a coastal water body that connects to the South China Sea. The discharge is regulated under the Philippine Clean Water Act to meet effluent standards.
The plant operates under the Philippine Clean Water Act (Republic Act 9275) and is subject to DENR administrative orders on effluent standards. Maynilad holds a concession agreement with the Metropolitan Waterworks and Sewerage System (MWSS).
For large urban wastewater treatment plants in the Philippines, secondary treatment is standard, with some facilities employing advanced treatment to meet stringent effluent standards for coastal discharge. The DENR requires compliance with water quality guidelines for Class SB waters (recreational and fishery).
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