NWRB set to reduce allocation to water concessionaires

Robie de Guzman   •   June 18, 2019   •   1601

By Mietzekatze on Pixabay

MANILA, Philippines – The National Water Resources Board (NWRB) is set to cut the water allocation for Metro Manila as the water level at Angat Dam nears critical level.

The NWRB said on Tuesday that the technical working group has proposed to reduce the allocation for the Metropolitan Waterworks and Sewerage System (MWSS) from 46 cubic meters per second (cms) to 40 cms from June 19 to 21.

The NWRB said this is to fine tune the preparation of the Low-Level Outlet (LLO) as a back-up water discharge and to lessen the effect of limited water supply in the coming days before the Angat dam breaches the critical level of 160 meters.

“Ito po yung gusto nating i-manage although limited yung allocation na binibigay natin, this is part of the contingency plan,to manage the limited water supply sa Angat,” said Servillo David, executive director of NWRB.

The agency said that as of 6 a.m. Tuesday, the Angat Dam water level is at 161.78 meters. It is projected to reach the critical level mark in the next three days.

The NWRB said that assuming that the 160-meter level is breached as projected on June 22, the allocation for the MWSS will be adjusted again to give way to the shutting down of the auxiliary unit.

At least 36 cms will be allocated for the MWSS until the dam further declines to 150 meters if there is no significant inflow in the coming days.

The NWRB said that based on the forecast of the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa), the earliest downpour is expected in the last week of June because a monsoon break, which lessens the chance of rainfall, prevails in the country.

“This will considerably impact the normal delivery of services of both Metro Manila concessionaires, Maynilad and Manila Water and the Bulacan concessionaire. Expect rotational water service interruptions which will be announced the soonest possible time,” the NWRB said.

The agency appeals to the public anew to conserve and use water wisely. (with details from Joan Nano)

House recommends using Laguna Lake as permanent source of domestic water

Maris Federez   •   August 28, 2019

Laguna de Bay is the largest lake in the Philippines located between the provinces of Laguna and Rizal. (Photoville International/Rogz Necesito Jr.)

Despite the rising water level in Angat Dam, the National Water Resources Board (NWRB) has expressed concern about the possibility of another water crisis next year.

The NWRB said that if Angat Dam fails to reach its normal operating level, Metro Manila might experience another shortage come dry season.

Because of this, Congressman Ruffy Biazon, during the House Committee on Metro Manila Development hearing on Wednesday (August 28), recommended the use of Laguna Lake as a permanent source of domestic water.

This aims to address the shortage of water supply in Metro Manila and its neighboring cities and provinces in case the water level in Angat Dam recedes anew.

“Kasi iilan lang yung nakikinabang doon eh. Pinagkakakitaan yung Laguna Lake hindi para sa paggamit ng ordinaryong mamayan kung hindi sa paggamit ng mga interes ng kumpanya,” Biazon said.

The Laguna Lake Development Authority (LLDA) agreed that this can be done, although they admit that they do not have the funding to conduct dredging in the lake.

They also cited the expense that will be incurred in treating and eliminating the saltwater from Manila Bay that gets combined to the water in the lake.

Add to this is the fast-increasing formation of algae which affects the quality of the water.

“Ang Laguna Lake kaya niyang i-supply ang requirement for domestic water supply as source of domestic water. Ang problema lang is more on the water quality,” said Engr. Emiterio Hernandez of the LLDA.

To date, Maynilad and Manila Water get a small percentage of water supply from Laguna Lake for their customers in Metro Manila, Laguna, Rizal, Cavite, and Bulacan.

Meanwhile, water levels in several dams are continuously increasing due to the rains being experienced in the country.

As of 8:00 a.m. Wednesday, the water level in Angat Dam has reached 181.74 meters.

Ipo Dam water level, on the other hand, has gone up to 11.82 meters; while that of La Mesa Dam went up to 77.18. (from the report of Joan Nano) /mbmf

Metro water allocation to increase on Sept. 1 as Angat dam level improves – NWRB

Robie de Guzman   •   August 26, 2019

MANILA, Philippines – The allocation for Metro Manila water concessionaires will slightly increase next month as rains brought about by recent weather disturbances continue to boost the water level at Angat dam, the National Water Resources Board (NWRB) said Monday.

NWRB director Servillo David Jr. said the water of Angat dam is already above the minimum operating level of 180 meters and is expected to rise further based on the rainfall projections of the Philippine Atmospheric, Geophysical and Astronomical Service Administration (PAGASA).

“With the current level of Angat which is already above 180 meters and expected to rise further with incoming weather disturbances and Pagasa projections of near-normal rainfall for September, there will be an adjustment in allocation for water supply and irrigation starting September 1,” he said in a message sent to reporters.

David said the current water supply allocation of 36 cubic meters per second (cms) will be increased to 40 cms for the Metropolitan Waterworks and Sewerage System (MWSS). Allocation for irrigation will also go up next month.

“For water supply from 36 cms to 40 cms. There will be allocation for irrigation also up to 30 cms,” he said.

The NWRB reduced the water allocation for Metro Manila to 36 cms from 40 cms when Angat dam breached the critical level of 160 meters in June.

The allocation was a huge slash from the average allocation of 48 cms on normal days.

The reduced water allocation resulted in rotational service interruption in Metro Manila and nearby provinces in the previous month.

PAGASA earlier said it may take until September before Angat dam level returns to normal.

PAGASA Hydrologist Shiela Schneider said the projection was based on dam monitoring in previous years.

“Kasi nandito na tayo sa tag-ulan, may mga bagyo at may mag inexpect pa tayo na bagyong dadating so inaasahan, based from the historical naman natin na mga data, nakikita natin during these months talaga tumataas ang elevation ng Angat dam” she said.

Aside from Angat dam, water level at other dams in the country, including La Mesa, Ambuklao and Ipo, were also reported to have improved. (RRD with details from Correspondent Joan Nano)

No water in parts of Metro Manila on August 20-21 – Maynilad

Robie de Guzman   •   August 16, 2019

MANILA, Philippines – The Maynilad Water Services has announced a schedule of temporary water service interruptions in parts of Metro Manila from August 20 (Tuesday) to August 21 (Wednesday).

In an advisory, Maynilad said the water service disruption slated from August 20 at 6 p.m. to August 21 at 6 a.m. will affect several areas of Manila, Caloocan, Malabon, and Navotas.

The west zone water concessionaire said the service interruption is due to maintenance activities aimed at improving water services.

Below is the list of affected barangays and their corresponding supply interruption schedules:

MANILA

  • Barangay 124 to 127
  • Barangay 129 to 146
  • Barangay 177

CALOOCAN

  • Barangay 12
  • Barangay 14
  • Barangay 20
  • Barangay 28
  • Barangay 31
  • Barangay 35

MALABON

  • Barangay Longos
  • Tuna
  • Torcillo
  • Dagat-Dagatan Ext.
  • Dalagang Bukid East/C3
  • Lapu-Lapu West
  • Dagat-Dagatan

NAVOTAS

  • Barangay Bangculasi
  • Barangay North Bay Blvd.
  • San Rafael Village

Maynilad urged its customers to store water at least three days before the scheduled interruption to prevent simultaneous heavy withdrawals of water from its pipelines, which can reduce water pressure and cause some customers to have no water earlier than scheduled.

The water concessionaire assured water tankers will be on standby to deliver water to affected areas as needed.

Upon resumption of water service, customers are also advised to let the water flow out for a few seconds until the water clears.

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