North Luzon

Angat Watershed	Norzagaray-San Jose del Monte, Bulacan
Magat Watershed	Ifugao, Isabela and Nueva Viscaya
Pantabangan-Carranglan Watershed	Nueva Ecija, Nueva Viscaya and Aurora
San Roque Watershed	Pangasinan and Benguet
Upper Agno River Watershed	Benguet, Ifugao, Mountain Province and Nueva Viscaya

South Luzon

Buhi-Barit Watershed	Albay and Camarines Sur
Caliraya-Lumot Watershed	Cavinte, Kalayaan, Lumban and Paete, Laguna
Makiling-Banahaw Watershed	Laguna, Batangas and Quezon
Tiwi Watershed	Albay and Camarines Sur

Mindanao

Lake Lanao Agus River Watershed	Lanao del Norte and Lanao del Sur
Pulangi Watershed	Bukidnon