By Riza T. Olchondra Philippine Daily Inquirer

MANILA, Philippines Authorities monitoring La Mesa Dam in Quezon City remained on red alert status Tuesday morning even though the water level eased at the facility, according to Manila Water Co., which keeps close watch on the Angat-Ipo-La Mesa Dam Raw Water System.

As the La Mesa Dam water level reaches 88.30 meters, it automatically releases water when it reaches its overflow limit of 80.15 meters. The released water will add to the water level in the Tullahan River. INQUIRER FILE PHOTO

From midnight to around 8 a.m., the water at La Mesa eased by 4 centimeters to 79.73 meters, Manila Water corporate communications chief Jeric T. Sevilla said in a text message.

For the alert to be downgraded to yellow, the water level of La Mesa should be below 79.60 meters, Sevilla said.

La Mesa Dam was also placed under red alert Monday.

LGUs (local government units) downstream of Tullahan (River) are still on alert, Sevilla said on Monday night.

Citing reports received by the water concessionaire as of 8 p.m., Sevilla said that compared to 4 p.m. levels, the water at La Mesa Dam was steady at 79.79 meters, Angat Dam increased by 1 centimeter to 189.19 meters, and Ipo Dam decreased by 11 cm. to 100.31 meters.

Still, given that rains have stopped, We expect that level (in Ipo) will gradually go down as well, Sevilla said.

The authorities get concerned when the water level at La Mesa Dam breaches 79.40 meters, Sevilla said.

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