Portions of the Angat Reservoir have dried up as water levels in Angat Dam continue to decline amid insufficient rainfall this July, raising concerns over water supply in Luzon.

Photos and video captured by a netizen, identified as Dejaño Timbol, showed visibly receded shorelines and exposed portions of the reservoir.

“Tuyot na, walang katubig-tubig,” Timbol said, describing the situation.

Data from the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) showed that as of 8 a.m. Thursday, July 23, the water level at Angat Dam dropped to 151.45 meters. This is significantly below the dam’s critical level of 160 meters and lower than its previous record low of 152.19 meters.

The continued drop in water elevation has been attributed to below-normal rainfall in recent weeks, according to PAGASA.

Angat Dam supplies more than 90 percent of Metro Manila’s potable water and also provides irrigation for agricultural lands in Bulacan and Pampanga, making it a vital resource for both urban and rural communities.

Authorities have yet to announce possible water management measures, but the declining levels have raised concerns over potential supply constraints if the dry conditions persist.