Water level in major dams continues to improve

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August 13, 2026 | 12:00am

MANILA, Philippines —  Most dams being closely monitored by the Philippine Atmospheric, Geophysical and Astronomical Services Administration continue to record a slight increase in their elevations.

As of 4 p.m. yesterday, the elevation in Angat Dam in Bulacan had increased to 177.69 meters from the previous day’s 175.6, or only 2.31 short of its minimum operating level of 180 meters.

Angat supplies more than 90 percent of Metro Manila’s potable water, provides irrigation water to palay farms in Central Luzon and generates power for the Luzon grid.

Meanwhle, Ambuklao Dam in Benguet opened its spillway gate to reduce its water level by a centimeter.

Binga Dam discharged water, but the elevation remained higher by 20 centimeters than its normal high-water level.

San Roque in Pangasinan logged the highest increase with 2.83 meters, although the elevation, at 263.17 meters, remained below the dam’s normal high-water level of 280 meters.

Pantabangan in Nueva Ecija and Magat in Isabela both reported increased elevations by approximately 86 and 90 centimeters, respectively.

From the previous 183.11, the water level in Pantabangan rose to 183.97 meters yesterday.

Magat Dam operators said the water level increased to 177.25 from 176.35 meters.

Operators of La Mesa and Caliraya dams reported a decline in the water level.