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 BENGUET NUEVA 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 NORTE ZAMBOANGA 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 I UPRIIS 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-Maridagad Kabacan Ambayaon Mallig Mongpong Tumauini Buhi-Lalo Porac Dipalo Gibong Aklan Dipolo Dumacaa Bagabag Amburayan Marbel - 1 Banga 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 Mambusao Pongso 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' O 0 100 200 300 KILOMETERS NATIONAL IRRIGATION SYSTEMS Philippines SCALE 1 : 5,000,000 (ON A3 SHEET) LEGEND NIS service area Source: NIA 2010, Status of Irrigation Development as of December 2010.