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.