Angat Dam water level not alarming – Pagasa

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THE Philippine Atmospheric Geophysical and Astronomical Services Administration (Pagasa) on Thursday said it is still too early to tell whether the decreasing water level of Angat Dam will hit the lowest water level of 2010.

Pagasa hydrologist Danny Flores said the latest scenario at the dam is not alarming since the water level is still high compared to the July 2010 level when the dam had a record low of 157.10 meters.

Flores said the water level of Angat Dam would likely be 169 meters next month and 159 meters in July, dropping at the rate of 0.20 and 0.35 meters daily.

He said Pagasa does not expect the dam’s water elevation to fall below 159 meters in the coming weeks since rains are expected to come next month.


His view was shared by Elmer Caringal, another hydrologist, who said that yesterday’s water elevation at Angat Dam of 179.01 meters is 0.28 meters lower than the level of 179.29 recorded on Wednesday.

When the water level at Angat Dam reached 157.56 meters in 2010, the water supply of Metro Manila and the Greater Manila Area (Southern Luzon) was rationed.

Although the chances of this happening again are slim, Caringal appealed to the public to conserve water.

Another Pagasa hydrologist, Edgar De la Cruz said the rainy season is expected to arrive in the last week of May or the first week of June.

When it rains, De la Cruz said that there would not be an abrupt rise in water elevation since the surface of the dam will seep the rainwater before the level of elevation slowly climbs up.

“Madaming malalakas na ulan last year bago mag summer kaya medyo mataas ang reserba ng tubig sa Angat Dam [Several strong rains were experienced before last year’s dry spell that is why the water elevation at Angat Dam was higher],’’ he  concluded.

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