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East La Mesa Water Treatment Plant, Manila

A water treatment plant processing 150m litres per day.

East La Mesa Water Treatment Plant supplies high quality water to parts of northern Manila, providing support to the expanding economy, making the city more resilient to today’s extremes and at a lower cost of water to the tap.

This project comprises an intake structure built inside the La Mesa Dam connected to a 1.8m diameter tunnel with an approximate length of 4.7km, a 150m litre per day water treatment plant and a reservoir.

Arup has been appointed by Manila Water to multidisciplinary services including project management, civil engineeringwater engineering and geotechnics.

Project Summary


150,000 day water treatment plant

40,000storage reservoir

1.8minterconnected diameter tunnel