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Water firms say current supply levels to remain

Water concessionaires yesterday assured customers that the current water supply will be maintained until next week.

West zone concessionaire Maynilad Water Services Inc. said in a statement that the seven-hour, off-peak water service interruptions (9 p.m. to 4 a.m.) that affect 56 percent of its customers this El Niño season will be maintained at current levels next week.

According to Maynilad Water Supply Operations head, engineer Ronaldo Padua, the rains that Typhoon Kabayan dumped over Central Luzon last weekend increased surface runoff at the Ipo watershed, thus sustaining water elevation at the Ipo Dam days after the typhoon has passed.

 “Based on our latest simulation, the water runoff from Ipo watershed can still sustain our raw water requirements until next week,” Padua said.

“Our customers can rest assured that there will be no changes to our existing service level yet despite the reduced supply allocation from Angat Dam,” Padua added.

The National Water Resources Board earlier reduced the water allocation from Angat Dam for Metro Manila, as the current strong El Niño is projected to last until middle of next year.

From last month’s 38 cubic meters per second, NWRB reduced allocation to 36 CMS this October.

Maynilad has been implementing daily supply interruptions in an effort to preserve water elevation in Angat Dam, which is the main water supply source for Metro Manila.

Water from the much smaller Ipo Dam has been augmenting the reduced allocation from Angat Dam. Ipo Dam is shared by Maynilad and East zone concessionaire Manila Water Co. Inc.

As of Friday morning, Ipo Dam’s water level was at 99.75 meters while Angat Dam’s level was at 193.96 meters.

Manila Water Corporate Communications head Jeric Sevilla Jr. said that although the recent rains brought by Typhoon Kabayan have slightly increased the level of Angat by more than 2 meters, the current level is still almost 20 meters lower than the normal operating water level of 212 meters.

“We cannot be complacent. In this regard, Manila Water will continue to implement the pressure reduction scheme from 10PM to 5AM daily until further notice,” Sevilla said.

“We will continue calibrate our system adjustments weekly to determine if a new scheme is needed. We shall inform our customers in advance if a new scheme will be implemented,” Sevilla added.

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