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Under its Water Security Plan for 2018-2023, the Kaliwa Dam is only one of many projects undertaken by the Metropolitan Waterworks and Sewerage System (MWSS).  If the old project was pushed forward, alongside Angat Dam, Manila's sole water storage facility, it was supposed to provide water. The dam, 60 meters high, will be constructed along the Kaliwa (left) River, under the jurisdiction of the municipality of Barangay Pagsangahan, General Nakar, and the municipality of Barangay Magsaysay, Infanta, both in the province of Quezon. A 27.7-kilometer raw-water conveyance tunnel that will lead to water treatment facilities will supplement it. If completed, the project with the capacity to provide 600 MLD can be maximized with its water supply tunnel having a capacity of 2,400 MLD, thus relieving the burden on the 60-year-old Angat dam, currently the source of 97% of the raw water supplied to Metro Manila and the nearby towns of Cavite and Rizal.

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​The stability of this mountain range is endangered by recent projects suggested by the Philippine government. The building of the Kaliwa Dam in General Nakar, Quezon, in particular, is the main project. Not only will the building of this dam cause permanent environmental harm to the Sierra Madre, but many endemic species will also be threatened, habitats disrupted and so many indigenous people from the region displaced. This project is also contradictory to so many rules that it should have been deemed illegal.

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