By: Catherine Talavera - The Philippine Star
MANILA, Philippines — As the water level at Angat Dam continues to drop, the National Water Resources Board (NWRB) said Metro Manila and nearby areas are more prepared to face potential water supply issues in the dry season compared to the shortage in 2019 as augmentation measures are in place.
At a Laging Handa public briefing over the weekend, NWRB executive director Sevillo David said compared to 2019, the country is more prepared to address water supply issues it may face in the upcoming dry season due to the presence of deep wells and water treatment facilities, which were not available before.
Data from the Philippine Atmospheric, Geophysical and Astronomical Services Administration showed that the reservoir water level of Angat Dam continues to decline as it stood at 197.85 meters as of 6 a.m. Saturday. This is lower than the dam’s normal high level of 212 meters.
David said the projects and activities of the Metropolitan Waterworks and Sewerage System (MWSS) and its concessionaires help in preparing for the needed water supply in the summer.
The MWSS said earlier that it has put in place supply augmentation measures, along with its concessionaires, to ease the pressure in the already drought-like trend of Angat and the sustainability of clean, potable water for the 19 million people in the service area.
According to the MWSS, among the augmentation measures by its west-zone concessionaire Maynilad Water Services Inc. are the non-revenue water reduction of 40 million liters per day (MLD) for summer and additional 42 MLD at the end of 2022; the operation of existing 12 MLD deep wells (one MLD existing and additional 11 MLD for summer); the operation of four MLD Portable Water Treatment Plant by February 2022 and another 18.6 MLD by September 2022 in Cavite.
Other measures include the operation of the backwash recovery system in La Mesa Water Treatment Plants one and two, as well as network pressure management to equally distribute the available water through the regulation of 1,200 Pressure Regulating Valves and 50 primary Valves in the Bagbag network system.
East zone concessionaire Manila Water Co. Inc. announced earlier that it is preparing its water supply contingency and augmentation programs for the summer to ensure water availability, as the water level at Angat Dam continues to drop.
“To prepare for the coming summer months and in light of lower-than-projected levels at Angat Dam, Manila Water puts into motion its water supply contingency and augmentation plans while working and coordinating closely with the MWSS and the NWRB, to help ensure that customers will experience continuous water supply even during peak demand periods,” Manila Water said in an earlier statement.
Among these contingencies are the maximization of the 100 MLD capacity of the Cardona Water Treatment Plant, which draws water from Laguna Lake; operation of deep wells which can provide additional 115 MLD and operation of the 20-MLD Marikina Portable Water Treatment Plant, which can treat water from the Marikina River.
Apart from the MWSS, David said the NWRB is also in coordination with the National Irrigation Administration, as the Angat Dam is also a source of irrigation for farm lands in Bulacan and Pampanga.
The NWRB earlier urged the public to conserve and use water wisely due to the Angat Dam’s lower than expected water level to ensure that sufficient water is available for municipal irrigation and hydropower uses in the subsequent months.
