The National Power Corporation (Napocor) on Tuesday opened the Angat Dam spillway to keep the reservoir from overflowing.
The move has prompted the Bulacan Provincial Disaster Risk Reduction and Management Council (PDRRMC) to warn officials of the eight towns that will be affected by the discharge.
The water level in the reservoir has reached more than 215 meters or 3 meters beyond its spilling level of 212 meters, PDRRMC officer Liz Mungcal said.
The water level must be lowered ahead of heavy rains from a combination of monsoon and easterly winds, the Napocor pointed out in a notice.
The water released from the dam will have minimal impact on the towns of Norzagaray, Angat, Bustos, San Rafael, Baliwag, Plaridel, Pulilan, Calumpit, Hagonoy and Paombong. The spillway releases water to the Angat River which flows along these towns, Mungcal said.
The dam will open its spillway at 8 a.m., on Tuesday, January 5, according to the Napocor notice received by the provincial government on Monday.
Napocor’s Flood Operation Manager said that Gate 2 of the Angat Dam spillway was opened Tuesday morning at 0.5 meters with an estimated discharge of 70 cubic meters per second.