'PWTP 2 is a vital component of Maynilad's plan to develop alternative sources of water to ensure long-term water security for its customers,' he said in a statement.
The company's first water-treatment facility in the same area, the PWTP 1, became operational in 2009.
As of April this year, PWTP 2 has begun producing 100 MLD of potable water for 1 million Maynilad customers in Muntinlupa, Paranaque, Las Pinas and Cavite.
The facility's output will be expanded in phases until it reaches its full 150-MLD capacity by the latter part of the year, at which point Maynilad's Putatan Water Treatment Plant 1 (PWTP 1) will be temporarily shut down for rehabilitation and upgrades.