September 5 ------ TWO major Luzon dams — La Mesa Dam in Quezon City and Ipo Dam in Norzagaray, Bulacan — have breached their spilling levels due to incessant rains spawned by Storm Enteng and the enhanced southwest monsoon (habagat).
Operators opened one floodgate of the Ipo Dam in a bid to control the release of excess water in minimum amounts at 0.9 cubic meters per second, Nathaniel Servando, Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) administrator, told The Manila Times (TMT) on Wednesday. "We have always been alerting the concerned local government units and villages a day or several hours before the gates are opened to allow them to prepare," Servando added.
Also, hydrologist Edgar de la Cruz told TMT that La Mesa had already breached its spilling level of 80.15-meter elevation. He said the excess water from the La Mesa Dam flows down the Tullahan River. Pagasa hydrologists are also closely monitoring the water level of the Magat Dam in Isabela province, which was measured at 184.61 m or a deviation of -5.39 m from its normal high water level of 190 m.
Source: manilatimes.net
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