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The Metropolitan Waterworks and Sewerage System [1] (Tagalog: Pangasiwaan ng Tubig at Alkantarilya sa Kalakhang Maynila), [5] formerly known as the National Waterworks and Sewerage System Authority (NAWASA), is the government agency that is in charge of water privatization in Metro Manila and nearby provinces of Cavite and Rizal in the Philippines.
Agricultural water management in the Philippines is primarily focused on irrigation. The country has 3.126 million hectares of irrigable land, 50% (1.567 million hectares) of which already has irrigation facilities. 50% of irrigated areas are developed and operated by the government through the National Irrigation System (NIS). 36% is developed by the government and operated by irrigators ...
Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.
18 Major River Basins in the Philippines. Rivers in the Philippines are grouped into 18 major river basins. Of these, the Cagayan, the country's longest river, [1] has the largest drainage basin, followed by the Mindanao, the Agusan, and the Pampanga. [2]
The Angat Watershed was first gazetted on July 26, 1904, as the Angat River Reserve through Executive Order No. 33 signed by Civil Governor Luke Edward Wright.It set aside the Angat River in the municipality of Norzagaray bordering Mounts Salacot, Balugan and Sulip in the Sierra Madre range and including the Bulagao and Bitbit creeks for purposes of the development of water power from the ...
The Rio Grande de Mindanao, also known as the Mindanao River, is the second-largest river system in the Philippines.Located on the southern island of Mindanao, with a total drainage area of 23,169 km 2 (8,946 sq mi), [2] draining the majority of the central and eastern portion of the island, and a total length of approximately 373 km (232 mi).
Metro Manila, Philippines, is located in the hydraulically complex Pasig River—Marikina River—Laguna de Bay watershed, which includes more than thirty tributaries within the urban area. [1] The following list is sorted by name, with a brief description of each. Bold indicates the body of water is a major channel.
The La Mesa Watershed Reservation is a protected area that preserves the only major watershed in Metro Manila, Philippines.Also known as the Novaliches Watershed, it contains the last remaining rainforest of its size in Metro Manila surrounding the La Mesa Dam and Reservoir, the primary source of potable drinking water for 12 million residents in the Manila metropolitan area. [1]