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Maynilad announces water service interruptions schedule

Customers of Maynilad Water Services Inc. will experience water service interruptions this week, as the west zone concessionaire is set to undertake repair activities due to a leaking valve at the Putatan Water Treatment Plant.

In an advisory, Maynilad said the interruptions will take place within a specific number of hours between Wednesday, May 24, and Friday, May 26, 2023, in portions of Las Piñas, Muntinlupa, Parañaque, Pasay, and Bacoor and Imus in Cavite.

“This service interruption is being implemented to give way for the repair of a leaking ultrafiltration backwash valve at the Putatan Water Treatment Plant 2,” the advisory reads.

Below is a list of the affected areas, along with the interruption schedule:


Just last month Maynilad said some 167,500 “lifeline” customers will be given a rebate in their May 2023 bill, following the service interruptions reported due to the reduced production of its Putatan Water Treatment Plants.

Maynilad in January said maintenance activities are ongoing in its water treatment plants in Putatan, Muntinlupa, but noted that the full 300 million liters per day (MLD) output is “just enough” for the requirements of its customers in the area which is why reduction due to maintenance activities are immediately felt.

The company aims to provide uninterrupted water services with normal pressure to 88% of its customers by the end of 2023, and to all its customers by 2027.

To recall, the Metropolitan Waterworks and Sewerage System Regulatory Office (MWSS-RO) in January penalized Maynilad P27.477 million for customers affected by service interruptions in the prior months.

An earlier investigation of the MWSS-RO found that Maynilad violated its service obligation of an uninterrupted 24-hour supply in areas served by the Putatan Water Treatment Plants (PWTPs).

The MWSS last September also slapped Maynilad with a P9.264-million fine for “unusual and prolonged” service interruptions experienced by customers from May to July 2022.

It also penalized Maynilad in February 2022 for unusual and prolonged service interruptions within the PWTP supply zone, equivalent to a rebate of P323 in the April bill.

The concessionaire in February also reported at least 57 hours of water service interruptions due to a major leak on its primary line in Makati.

Maynilad currently serves customers in the west zone, which covers the cities of Caloocan, Las Piñas, Makati, Malabon Manila, Muntinlupa, Navotas, Parañaque, Pasay, Quezon, Valenzuela. It also services certain areas in Cavite such as the cities of Bacoor, Cavite, and Imus; and the towns of Kawit, Noveleta, and Rosario. —LBG, GMA Integrated News