ISABELA
LEYTE
CAGAYAN
QUEZON
BUKIDNON
ABRA
CEBU
ILOILO
PALAWAN
BOHOL
APAYAO
AGUSAN DEL SUR
NUEVA ECIJA
CAPIZ
PANGASINAN
TARLAC
NORTH COTABATO
ALBAY
IFUGAO
MASBATE
KALINGA
QUIRINO
BATANGAS
WESTERN SAMAR
AKLAN
BULACAN
SULTAN KUDARAT
LAGUNA
PAMPANGA
CAVITE
NORTHERN SAMAR
SULU
BASILAN
AURORA
NEGROS OCCIDENTAL
ZAMBALES
CAMARINES SUR
ANTIQUE
DAVAO ORIENTAL
NEGROS ORIENTAL
BENGUETNUEVA VIZCAYA
ZAMBOANGA DEL NORTE
LANAO DEL SUR
OCCIDENTAL MINDORO
SURIGAO DEL SUR
EASTERN SAMAR
SARANGANI
ILOCOS NORTE
ILOCOS SUR
ORIENTAL MINDORO
COMPOSTELA VALLEY
DAVAO DEL SUR
SOUTH COTABATO
ZAMBOANGA DEL SUR
SORSOGON
LA UNION
MAGUINDANAO
BATAAN
DAVAO DEL NORTE
LANAO DEL NORTEZAMBOANGA SIBUGAY
MISAMIS ORIENTAL
CAMARINES NORTE
RIZAL
CATANDUANES
MOUNTAIN PROVINCE
MISAMIS OCCIDENTAL
SOUTHERN LEYTE
MARINDUQUE
ROMBLON
BILIRAN
SHARIFF KABUNSUAN
SURIGAO DEL NORTE
TAWI-TAWI
AGUSAN DEL NORTE
GUIMARAS
DINAGAT ISLANDS
SIQUIJOR CAMIGUIN
BATANES
Angat
Agno
Bago
Allah
Tasmoris
MRIIS District I
Libungan
Alip
UPRIIS District III
Pulangui
UPRIIS District IV
UPRIIS District IUPRIIS District II
Bao
MRIIS District III
Kabulnan
MRIIS District IV
Salug
Lambayong
Barit
Apayao-Abulug
Mal
Inarihan
Camiling
Lasang
Lower Agno
Mainit
Rida
Baua
Bito
Siluay
Batutu
Aganan
Pula
Malasila
Jalaur-Proper
Upper Chico
Magapit PIS
MRIIS District II
Libuganon-Right
Sto. Tomas
Sta. Cruz
Cantilan
Andanan
Tago
Manupali
Lupon
Dumuloc
Saug
Muleta
Baco Bucayao
Mlang
Rugnan
Malitubog-MaridagadKabacan
Ambayaon
Mallig
Mongpong
Tumauini
Buhi-Lalo
Porac
Dipalo
Gibong
Aklan
Dipolo
Dumacaa
Bagabag
Amburayan
Marbel - 1Banga
Nayom
Papa Area
Maranding
Caguray
Cagaycay
Jalaur-Extension
Agos
Dummun
Simulao
Gibuga
Matanda
Solana PIS
Marbel - 2
Tibak
Masalip
Cabadbaran-Taguibo
Padada
Barotac Viejo
Lower Chico
MambusaoPongso
Sibuguey Valley
Binahaan South
Bansud
Cura
Sibalom-San Jose
Lumintao
Bayto
Pagbahan
Balanac
Pangiplan
Caulaman
Zinundungan
Daet Talisay
Molino
San Fabian
Libmanan Cabusao PIS
Palico
Sibalom-Tigbauan
Bolo
Baggao
Balayungan
Amnay-Patrick
Lagnas
Nueva Era
Das-Ay
Pinacanauan
Nmc Pasuquin
Roxas-Kuya
Malaunod
San Pablo Cabagan
Sta. Lucia-Candon
Panakuyan
Tagudin
Disalit Creek
Macabling
San Ramon
Pamplona
Alapasco
Sta. Maria-Burgos
San Juan
Hindang-Hilongos
Dambo PIS
Cantingas
Mag-Asawang Tubig
Hanagdong
Malimanga Sinabacan
Cabangan
Bonga PIS-1
125°0'
125°0'
120°0'
120°0'
20°0'20°0'
15°0' 15°0'
10°0' 10°0'
5°0' 5°0'
O0 100 200 300
KILOMETERS
NATIONAL IRRIGATION SYSTEMSPhilippines
SCALE 1 : 5,000,000 (ON A3 SHEET)
LEGENDNIS service area
Source: NIA 2010, Status of Irrigation Development as of December 2010.