A state hydrologist has issued a warning that water shortage, particularly in Metro Manila, is expected to persist during the first half of 2024, despite the Angat Dam being beyond its normal high water level (NHWL). Elmer Caringal, a senior hydrologist from the Philippine Atmospheric Geophysical and Astronomical Services Administration (Pagasa), explained that the current NHWL of 213 meters at the dam does not guarantee that water shortage will be avoided. In fact, the dam operators have already opened three gates of the Angat Dam to release “excess water” in order to maintain it at its 212 m NHWL.
According to Caringal, the Angat Dam, which serves as the main source of potable water for Metro Manila and surrounding provinces for irrigation, can still accommodate water levels of up to 215 meters. However, the decision to gradually release water through the three gates, totaling two meters, was made due to ongoing rainfall in the watersheds that help maintain the dam at its normal high water level. Caringal also mentioned that they are anticipating possible weather systems, aside from the northeast monsoon known locally as “amihan,” that may occur this month and bring more rains.
Releasing excess water when the dam reaches levels of 214 to 215 meters would pose a significant risk, according to the Pagasa hydrologist. Therefore, he emphasized that water shortage is still likely, especially during the first and second quarters of 2024, when the effects of the El Niño phenomenon, such as dry spells and droughts, will be felt. Caringal revealed that concerned government agencies have plans to fully maximize the dam’s water supply to Manila residents in anticipation of El Niño. However, these efforts would be futile if end-users do not practice water conservation.
Caringal further highlighted the challenge posed by the fact that Metro Manila relies solely on the Angat Dam, which supplies water to a continuously growing population. He expressed support for plans to establish a new dam to capture and store rainwater for potable water and irrigation purposes. While water shortage may not be a significant issue in other areas outside Metro Manila, Caringal warned that brownouts may occur next year due to the onset of El Niño and the dry season. Additionally, the below-normal rainfall outlook for 2024 is expected to impact major dams that provide power.
As the water shortage situation in Metro Manila continues to persist, it is crucial for residents to be mindful of their water usage. Conserving water and using it wisely will help mitigate the impact of the ongoing water crisis. Efforts to establish additional water sources and improve water management systems should also be prioritized to ensure a sustainable water supply for the growing population of Metro Manila.
Source: The Manila Times
