On 15 December 2023, President Ferdinand R. Marcos Jr. led the inauguration of the Poblacion Water Treatment Plant (WTP), in Barangay Poblacion, Muntinlupa City, Metro Manila, signifying a critical leap forward in addressing water supply challenges in the region.

Arup has played a pivotal role in bringing this state-of-the-art, membrane-based water treatment facility to life. The plant, with a maximum design capacity of 150 million litres per day (MLD), is a result of our holistic services covering feasibility, site assessment, procurement management, contract management and site supervision, ensuring the project’s progression from concept to fully functioning reality.

The Poblacion WTP is a PhP11 billion project by Maynilad Water Services, Inc. (Maynilad), integral to Maynilad’s PhP220 billion service enhancement programme spanning from 2023 to 2027. The facility’s full operation will significantly enhance service reliability for approximately 1 million Maynilad customers in southern Metro Manila – specifically in Parañaque, Las Piñas, Muntinlupa, and Cavite. This is particularly crucial for these areas facing water scarcity and quality issues due to climate change impacts on Laguna Lake.

The facility employs a comprehensive, multi-stage treatment process, adhering to the Philippine National Standards for Drinking Water and the World Health Organisation requirements. This includes dissolved air flotation, disc cloth filters, biological aerated filters, ultrafiltration, reverse osmosis, and chlorination, ensuring the production of high-quality drinking water.

Arup project team members at the treatment plant's inauguration
(From left to right) Arup’s key project team members Jerwin Flores, Nepthalie Celles, Donnabelle Magana, and Angelo Landicho at the inauguration ceremony.

What they say

The project commenced on the cusp of the COVID pandemic, yet the team navigated the challenges with remarkable agility. The result is a water treatment facility that not only meets required standards but also excels in robustness and capacity. Its advanced design positions it to tackle future challenges with confidence. This success is a testament to the dedication and excellence of all who involved.

Adrian Marsden

Project Manager and Southeast Asia Water Lead