Angat Dam needs 3 cyclones to replenish – PAGASA

Marje Pelayo   •   October 16, 2019   •   535

MANILA, Philippines – The water level in Angat Dam has recorded no improvement since October 8.

In fact, its water reserve receded further by more than two meters from 187.53 meters this morning.

“Halos wala lang talagang pag-ulan doon sa may watershed ( The watershed has had almost no rain at all),” noted Ailene Abelardo, a weather specialist from PAGASA.

According to PAGASA, the watershed needs at least three cyclones to replenish Angat’s water supply and reach its normal operating level of 210 meters.

“Hindi naman kailangang doon mismo yung bagyo kung sakop siya noong cloud rain bands niya na doon ibinubuhos yung malakas (The cyclone doesn’t need to be there as long as the cloud rain bands cover the area),” Abelardo explained.

As an effect, Maynilad announced possible water service interruptions among its customers due to the receding water reserve in Angat Dam and in Ipo Dam.

Thus, the water concessionaire advised its clients to store enough supply of water and monitor the agency’s social media accounts for advisory should they decide to impose low pressure or water service interruptions in the coming days. – MNP (with details from Rey Pelayo)


Typhoon Rolly fills Angat Dam; enough water supply to last up to 2021

Maris Federez   •   November 3, 2020

MANILA, Philippines — The water level in Angat Dam has gone up to 202 meters Tuesday (November 3), close to reaching its normal level of 210 meters.

The National Water Resources Board (NWRB) said the recent typhoons have significantly added to the supply of water in the dam.

The NWRB is confident that such an increase in the water level is enough to supply the whole of Metro Manila until the next dry season in the following year.

The agency added that apart from the recent typhoon, rains brought by La Niña has contributed a lot to cause the increasing water level in Angat Dam.

Based on the projection of the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), more rains are expected in the coming days and that the 212-meter target water level of Angat Dam will be met by the end of the 2020.

With the increase of Angat Dam’s water supply, the NWRB has also increased the allocation of water in Metro Manila to 46 cubic meter per second (cms) this month from the previous 44 cms.

The agency, on the other hand, decreased the water allocation in the agricultural lands of Bulacan and Pampanga to 15 cms in time for the harvest season. — (with details from Joan Nano) /mbmf

Manila Water continues implementation of rotational water service interruption through dry season

Maris Federez   •   February 21, 2020

MANILA, Philippines — More than one million Manila Water customers will be affected by the rotational water service interruption that the water concessionaire started on Thursday (Feb. 20).

Manila Water said this is due to the low water allocation, as well as its preparation for the dry season.

“So, ineexpect natin na bababa nang husto ang level ng dam. So, this early, kailangan paghandaan natin ‘yon para ‘yong limitadong supply na nakukuha natin sa Angat Dam na siyang nagsu-supply ng 96, 97 percent ng tubig para sa Metro Manila, mas ma-manage natin ng mabuti at nang tayo ay makatawid ngayong summer hanggang sa bago dumating uli ‘yong tag-ulan,” Manila Water Spokesperson Jeric Sevilla said.

In January, the water company started lowering the pressure of the water distributed to households in Metro Manila and Rizal province. This is done in off-peak hours or from 10 in the evening to 6 in the morning.

“While ‘yung interruption na binanggit natin is about 4 to 10 hours. In reality, mas maikli dahil nga madaling araw lang natin gagawin. So, generally, mga 11 to about 3 to 4 in the morning lang ito kung saan hindi nila mararamdaman,” Sevilla said.

He added that the schedule and the affected areas of the water service interruption can be found on the company’s Facebook page.

Manila Water added that the rotational water service interruption will continue as long as the water allocation by the National Water Resources Board is still below normal.

For the past several months, the water allocated to Manila Water is just 42 cubic meters per second —much lower than the normal allocation of 46 cubic meters per second.

As of 8:00 AM on Friday, the water level in Angat dam was at 202.48 meters.

According to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), the rain brought by the Northeast Monsoon or Amihan contributed to the rise of the water level in Angat.

To date, Metro Manila will still have a reduced water allocation.

The NWRB said the board will still have to discuss how much water will be allocated in Metro Manila in the coming months. — (from the report of Asher Cadapan, Jr.) /mbmf

Angat Dam water level continues to drop

Aileen Cerrudo   •   October 24, 2019

The water level at Angat Dam continues to drop from 186.23 meters on Wednesday (October 23) to 185.87m as of 6:00 a.m. on Thursday (October 24).

READ: NWRB to reduce water allocation for irrigation in Bulacan, Pampanga

Due to this, the National Water Resources Board (NWRB) is aiming to cut water allocations. According to NWRB Executive Director Sevillo David Jr., they want to manage the water supply in case the water level will not reach 212 meters by the end of the year.

“In order to manage iyong supply ngayon just in case na hindi ganoon ka-favorable iyong mga rainfall na darating sa Angat watershed (In order to manage the current supply in case there will be no favorable rainfall at Angat watershed),” he said.

According to PAGASA, rainfalls are still expected in Angat Dam area before the end of the year.

“Pagpasok ng November may mga dalawang bagyo tayong inaasahan diyan (By November, we are expecting two more typhoons),” weather specialist Edgar dela Cruz said.

The NWRB said they plan to conduct cloud seeding operation but that will only slightly increase the water level at Angat Dam.

Meanwhile, the NWRB will launch a campaign for responsible water consumption by November.—AAC (with reports from Rey Pelayo)


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