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Manila Bulletin devider Philippines devider National devider Angat reducing water allocation for domestic, irrigation use starting Oct. 1

Angat reducing water allocation for domestic, irrigation use starting Oct. 1

Published Sep 29, 2020 10:09 am

The National Water Resources Board (NWRB) will be reducing water allocations coming from Angat Dam for domestic and irrigation use starting October 1. 

Angat Dam (MANILA BULLETIN FILE PHOTO)

Angat Dam supplies the domestic water requirements of at least 16.5 million consumers in Metro Manila and some parts of Rizal, Laguna, Cavite, and Bulacan. 

It also provides the irrigation needs of 28,000 hectares of agricultural land in Bulacan and Pampanga, and hydropower generation from its byproduct water releases. 

NWRB Executive Director Sevillo David Jr. assured that Metro Manila and the neighboring provinces will have sufficient water next month amid Angat Dam's low water level. 

“Considering the level of the Angat Dam at around 3 meters below the minimum operating level of 180 meters and to manage relatively low level of the dam, the Board approved the allocation of 44 cubic meters per second (cms) for MWSS (Metropolitan Waterworks and Sewerage System) and 25 cms for NIA (National Irrigation Administration) for the month of October,” David said on Tuesday. 

The 44 cms allocation for domestic use and 25 cms for irrigation are slightly lower than the current allocations at 46 cms and 30 cms, respectively, David added. 

David said the reduced irrigation water allocation may also only bring minimal effect on farms in Bulacan and Pampanga as it is already harvesting season in these provinces. 

Based on the monitoring of the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA), the water level in Angat Dam has slightly increased from 177.81 meters Monday to 177.94 meters on Tuesday. 

However, its water level remains below the rule curve elevation at 185.7 meters. 

PAGASA explained that the rule curve elevation is the minimum reservoir elevation needed to maintain by dam operators to ensure availability of water for irrigation, power generation, and domestic supply.

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