The intermittent rains from a low pressure area (LPA) and the southwest monsoon last weekend have pushed the water level of Angat Dam above its 180-meter minimum operating level on Monday.
In a dam information issued by the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA), it showed that the water level of Angat Dam has significantly increased to 181.98 meters on Monday, which is 2.39 meters higher than the 179.59 meters last Sunday.
The dam’s water level has been gradually increasing in the past few days due to some rains over the watershed area in Norzagaray, Bulacan.
While it is already above its 180-meter minimum operating level, Angat Dam is still below its 210-meter normal high water level during the rainy season.
Other dams being monitored by PAGASA also saw slight increases in their water levels on Monday.
Ipo Dam’s water level was 101.11 meters, or 0.77 meters higher than the 100.34 meters the previous day.
The Ipo Dam management last Sunday conducted emergency water discharges after the dam reached its 101.0-meter spilling level.
The water level of La Mesa Dam in Quezon City also rose to 79.73 meters from 79.37 meters but remains below the spilling level of 80.15 meters.
La Mesa Dam authorities alerted last Sunday residents living along Tullahan River of possible flooding should the dam breach its spilling level.
The dam has no floodgates allowing the excess water to spill and flow into the nearby Tullahan River.
The water levels of Ambuklao and Binga Dams in Benguet also increased to 745.41 meters from 744.18 meters, and 572.67 meters from 572.52 meters, respectively.
Slight increases in the water levels of San Roque (239.66 meters from 239.31 meters), Pantabangan (186.33 meters from 186.06 meters), and Magat (182.20 meters from 181.31 meters) were also noted.
The rains may have helped boost the levels of the dams but are still not enough to reach their normal high water levels.