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By Lian Buan in Manila

The widespread flooding in Cagayan that gripped the Philippines this weekend is partly being blamed on the massive release of water from Magat Dam.

Typhoon Ulysses (Vamco) made landfall late night Wednesday, November 11, and by Thursday, November 12, Magat Dam opened seven gates and discharged 6244 cubic meters of water per second.

On Friday afternoon, November 13, state hydrologist Ed dela Cruz told Rappler seven gates were still open.

By late night on Friday, horrific images and sounds of residents pleading for rescue in Cagayan surfaced on the internet, with Filipinos online scrambling for information. At least nine were confirmed dead in Cagayan as of yesterday.

According to think tank Infrawatch PH, dams including Magat “rushed to open gates only at the height of Ulysses.”

“Magat did not make sufficient water drawdown two to three days prior to Ulysses, as mandated by its protocol, because its gates were not even open three to four days prior to landfall,” said Infrawatch PH convenor Terry Ridon in a statement yesterday.

According to the Magat Dam protocol, there should be a drawdown two-to-three days before the expected landfall.

Panic with dearth of information
UP Resilience Institute executive director Mahar Lagmay said there was a way to anticipate rainfall in order to make pre-releases before landfall.

“They had three days in advance [to pre-release water], the forecast was made at least 3 days in advance. If you did not contain the release within one-two days only but rather within 5 days, then the rivers will be able to handle it better,” Lagmay said in a mix of English and Filipino in an interview with Rappler on Friday.

Typhoon Ulysses (Vamco) aftermath: Flooding in Alcala, Cagayan.Video: Rappler

The panic on Friday night was partly due to a dearth of information coming from inside Cagayan, which national media had not physically reached at that time.

The steady stream of updates came from the Twitter feed of Vice-President Leni Robredo, who herself was also only getting updates from Manila.

Former Philippine Information Agency (PIA) chief Jose Fabia recalled that in 2011, during the Aquino administration, dams gradually released water and informed the public ahead of time.

“The Philippine Information Agency and other media outlets will be informed of the time of release. This valuable information is disseminated by text and broadcast to inform the public and the local government officials.

“The local officials will then conduct preemptive evacuation in the areas affected,” Fabia said.

‘Saved a lot of lives’
“In my tour of duty at the PIA, we saved a lot of lives through the timely dissemination of information and close coordination with dam management and local government officials,” said Fabia.

Cagayan Governor Manuel Mamba told DZBB yesterday that his constituents want to sue Magat Dam, not just for Ulysses but for the previous floods they had experienced.

“Minsan ang tao sa Cagayan, gusto nila magkaron ng lawsuit against them for damages dahil wala naman kami nakikita sa Magat Dam o kahit ano, yet we suffer the flooding woes from the Magat Dam every year,” Mamba told DZBB.

(Sometimes the people in Cagayan, they want to bring a lawsuit against Magat Dam for damages because we don’t see any benefits yet we suffer the flooding woes from the Magat Dam every year.)

Ridon said Ondoy 11 years ago should have taught dam operators to do programmatic discharges ahead of time.

‘Unacceptable criminal oversight’
Ridon said the heads of the operators such as National Irrigation Administration (NIA) and National Power Corporation (Napocor) “should be made accountable for this unacceptable criminal oversight.”

“Did they not authorise an aggressive but programmatic dam discharge in preparation for heavy rainfall during this time? If they did not, then the deaths and economic damage in all these communities rest solely on their shoulders,” said Ridon.

“We demand answers from the highest levels of government,” Ridon added.

Infrawatch PH said even other dams like Ipo, Angat, and Caliraya only opened gates at the height of the typhoon and not beforehand.

“Tell us again, Mr President: how is this not criminal incompetence?” Ridon said.

The Pacific Media Centre republishes Rappler articles with permission.

Philippines Coast Guard 141120
Philippine Coast Guard continue rescue operations in Cagayan and Isabela. Image: Ph Coast Guard
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