,. 
. .1 
, 
SIXTEENTH CONGRESS OF THE REPUBLIC 
OF THE PHILIPPINES 
Second Regular Session 
Introduced by Senator Poe 
AN ACT 
'14 
SEP 23 P452 
RECEIVED In::_j~_ 
FOR THE PROTECTION, CONSERVATION AND REHABILITATION OF 
WATERSHEDS SUP]"ORTING THE NATIONAL IRRIGATION SYSTEMS (NIS) 
TO ENSURE CONTINUOUS SUPPLY OF WATER FOR AGRICULTURAL 
PRODUCTION AND SELF-SUFFICIENCY IN FOOD AND PROVIDING FUNDS 
FOR THE PURPOSE 
Explanatory Note 
Water is essential to life and all living things. It is undisputable that without water, 
there can be no life. To plants, water is critical for growth and good production. 
Insufficiency in water can lead to low yield which could affect the food availability and 
sufficiency. 
The Philippines is an agricultural country with abundant river systems that can 
supply the water needs of the farming community, but the agricultural sector has suffered 
a lot due to the devastation caused by flash floods and rising levels of waters due to 
excessive surface run off that can no longer be contained by the river systems. The damaged 
wrought by the rampaging waters to agriculture and livelihood is immeasurable and what 
is worrisome is its occurrence every year without let up. The changing weather pattern is 
being attributed to global warming and climate change is the simplest answer being given 
every time there is havoc brought about by the increasing volume of rainfall. 
While it may be true that we are experiencing the effects of global warming, but 
there are other man made actions that are contributory to the devastations brought about by 
flooding. Man's insensitivity to his enviroument, the uncontrolled use of our forests and 
watersheds resources and the indiscriminate use of land resources that should have been 
reserved for forest use only. 
"Deforestation and the large scale transformation of the 
original vegetation of the country's forest to non-forestry purposes, 
coupled with inappropriate land use practices, have in effict 
disrupted the hydrological conditions of watersheds. These have 
brought about to some extent, flash floods and prolonged drought. 
Other adverse consequences are accelerated soil erosion, siltation 
of water bodies and reservoirs, and poor water quality. 
Sedimentation has likewise reduced the storage capacity of the 
country's mqjor reservoirs. These situations caused considerable 
reduction in the productivity of forests, agricultural lands and 
flsheries and decreased returns from mqjor investments in domestic, 
hydroelectric 
power 
generation 
and 
irrigation 
systems." 
(Oocasional J'aper prepared by FMB-Watershed Division) 


.No less than the Philippine Mediwn Term Development Plan (MTDP 2004-2010) 
indicates that major watersheds of the country are in a state of severe degradation which 
resulted in reduction of capacity to supply water for irrigation, industrial and domestic 
uses and vital ecological services. 
The degradation of the watershed has been attributed to the uncontrolled and 
excessive exploitation caused by the pressure of increasing population growth that 
oftentimes lead to unsustainable and uncontrolled management of the country's forest 
resources. Right now, watersheds provide the socio-economic base to a growing population 
through the utilization of watershed resources which for many years has not been controlled 
or necessary safeguards were not put in place. 
The continuing migration of the lowlanders to the uplands and the encroachment in 
watershed forest reserves remained unabated. These settlers having no viable economic 
opportnnities in the lowland became dependent on forest resources when they settled in the 
uplands. The "kaingin" or the slash-and-bum method was resorted to by the migrant 
dwellers to be able to plant and increase the area of their tillage. The demand for 
agricultural land or the conversion offorestlands to non-forest use increased tremendously 
thereby exerting so much pressure on the watersheds forest reserves areas. The continuous 
migration accounted to an estimate of 25 million Filipinos out of the 100 million entire 
Phil. populations or roughly 25% are now leaving in new upland settlements. 
Another contributory factor to the degradation of watershed forest reserves is the 
uncontrolled utilization of forest resources. The DENR who has the mandate to protect and 
conserve the environment is also the one promoting the utilization of forest resources thru 
mineral resources extraetion, forest concessions, logging and other destructive activities 
which it cannot control. 
Right now, the Philippines has 143 Watersheds supporting 165 National Irrigation 
Systems with a total area of 4,318,172 million hectares more or less, The water that comes 
from these watersheds areas and flows to the River Systems provides irrigation water to 
rice lands and other agricultural lands planted to different crops. There are only about 
483,820 hectares, more or less, being serviced by the 143 River Watersheds, but based on 
the NIA data, 868,509 hectares of agricultural land are being irrigated and roughly 368,000 
hectares of these have existing facilities but need restoration and rehabilitation. 
There seems to be a conflict on the actual figures, but what is important is to ensure 
that water will flow in these facilities once it has been rehabilitated, taking into account the 
denudation of the Watersheds supporting the National Irrigation System. These watersheds 
must be declared critical and no mining, logging and any other activity which is not in 
consonance with its actual use must not be allowed. Sufficiency in food production or the 
assurance that there is at least enough food in every Filipinos' table can only be realized if 
protection, conservation and rehabilitation of these watersheds will be prioritized by the 
government. 
To date, the Philippines' area harvested to rice is very small compared with major 
rice producing countries in Asia. This is the major reason why we import rice. Although 
we say that we are an agricultural country, we do not have large land resource to produce 
our total rice requirement. The Philippines have 4.35 million hectares devoted to rice 
production in 2010, and 3.5 million hectares are irrigated while 1.35 million hectares are 
not irrigated or there are no irrigation facilities that have been put in place to allow water 
to reach these ricefields. 1 But how come instead of increasing the number of hectares that 
can access water to ensure bountiful rice harvest, there is now a consistent decrease in 
irrigated and non-irrigated lands. The unabated conversion of irrigated and non-irrigated 
I Philippine Rice Industry: IFacts and Figures 


lands is one reason but the bulk of the problem lies on the fact that not so much water is 
flowing in the irrigation canals that feeds to the ricefields. Another reason is the consistent 
irritation between the hydro electric concessionaires and the National Irrigation 
Administration on how much volume of water can be allocated for irrigation purposes. 
People can live without electricity but they cannot possibly survive without food and water. 
The Philippine environment plays a very crucial role in sustaining the country's 
life, livelihood and development and the protection, preservation and rehabilitation of 
watersheds supporting water for irrigation is a matter of highest public interest, It is the 
obligation of the state to secure and ensure that the environment is neither destroyed nor 
its beneficial effects be spoiled, to protect and preserve the natural resources, to reap more 
benefits whilst negating the effects inevitably dealt to nature. Natural resources are to be 
utilized to gear towards I~conomic development. 
The former status of watersheds in the Philippines was characterized by abundant 
rainforest which reached an estimated 17 million hectares in 1934.m In 1969, after the 
completion of the first nationwide forest inventory, the forest cover had declined to 10.4 
million hectares. The second National Forest Inventory which was done in 1988 revealed 
that forest cover further decreased to 6.461 million hectares. It is such a great loss that our 
forests cover declined vastly in span of almost half a century. In 2003, the country's forest 
cover was pegged at 7.168 million hectare~ or an increase of about 707 thousand hectare 
which is mainly due to the much publicized reforestation program being initiated by the 
government and the public sector to repair the damage brought about by logging, forest 
clearing for agriculture and upland migration and mining that caused the death of thousands 
of people and destructions of properties so huge that it dislocated the economies of the 
provinces that were aff,:cted and the agricultural communities that bore the brunt of the 
devastations. ' 
Out of the estimated 30 million hectares land area of the Philippines, 15,805325 
million hectares were classified as forestland and 14.194,675 million hectares were 
declared alienable and disposable and was SUbjected to private ownership. Of the 15. 
805325 million hectares classified as forestland, only 3,270.146 million hectares were 
declared as Established Forest Reserves. Out of this, 1.561,128 million hectares has been 
proclaimed as watersh,:d forest reserves! There are 135 proclaimed watershed forest 
reserves scattered all over the country which cannot be touched by logging. or mining.4 
The difference Of the remainder which is about 1,709.018 million hectares, are the 
watersheds which are neither proclaimed, designated or set aside, pursuant to a law, 
presidential proclamation, decree or executive order. These areas, most of which have been 
classified by the Forest Management Bureau as permanent forest or forest lands in the 
course of establishing specific limits of lands of the public domain especially forestlands 
and national parks pursuant to the provision of Section 4 of the Constitution, which 
states(Source-2008 Phil forestry Statisitcs) 
Section 4. The Congress shall, as soon as possible 
determine by law the specific -limits of forest lands and national 
parks, marking clearly their boundaries on the ground Thereafter, 
such forest lands and national parks shall be conserved and may not 
be increased nor diminished except by law. The congress shall 
provide, for such period as it may determine measures to prohibit 
logging in endangered forests and watershed areas. 
2 Nera, 1999, Sustainable Management of Philippine Forests: Progress Towards Achieving ITTO Year 200 
Objective. 
3 2011 Philippine Forestry Statistics 


These areas were clearly established and plotted in the land classification maps 
which also served as the basis of its legal classification. But by virtue of the enactment of 
the Philippine Mining Act or R.A. 7942, in 1995, these areas are now opened to mining 
operations. Mining is definitely an activity which is not in consonance with the 
preservation of water re'sources. The 143 watersheds supporting the national irrigation 
system form part of these unprotected 1,709 million hectares and these watershed areas are 
the ones providing water to irrigate farms and other uses which ultimately redound in 
sustaining our life support system and ensuring continuous food supply. 
The activities of every Filipino must always be in harmony with the natural systems 
of things. The air around us has been dirtied by too much pollution and the water we use 
to drink is now perceived to be unsafe. What remains are the waters that flow in our river 
system which has not been touched by man's callousness to the natural order of things and 
this is where we get our life sustaining essentials. We must not therefore alter, interfere, 
bypass or destroy such systems in the guise of development and progress. 
It is for this reason that this bill is crafted to ensure the protection, conservation and 
rehabilitation of the watersheds supporting the national irrigation systems. It is only thru 
an enactment of a law that will protect, preserve and rehabilitate these watersheds that we 
can be assured that these areas cannot be touched by man's insensitivity to nature and his 
environment. We must remember that the environment is not ours to keep but to safeguard, 
for it is just borrowed from our children. 
The immediate passage of this bill is earnestly sought. 


SIXTEENTH CONGRESS OF THE REPUBLIC 
OF THE PHILIPPINES 
Second Regular Session 
SENATE 
S.B. 2424 
Introduced by Senator Poe 
1 
AN ACT 
'14 
SEP 23 P4:52 
RECEIVED By: .. )tL 
2 
FOR THE PROTECTION, CONSERVATION AND REHABILITATION OF 
3 
WATERSHEDS SUPPORTING THE NATIONAL IRRIGATION SYSTEMS (NIS) 
4 
TO ENSURE CONTINUOUS SUPPLY OF WATER FOR AGRICULTURAL 
5· 
PRODUCTION AND SELF-SUFFICIENCY IN FOOD AND PROVIDING FUNDS 
6 
FOR THE PURPOSE 
7 
8 
Be it enacted by the Senate and House of Representatives of the Philippines in 
9 
Congress assembled. 
10 
11 
12 
CHAPTER I 
13 
14 
15 
SECTION 1. Title - The Act shall be known as the Protection of Watersheds 
16 
Supporting the National Irrigation Systems 
17 
18 
SECTION 2. Declaration of Policy.- In line with the concept of National Patrimony as 
19 
embodied in Article XII Section 1 and 2 that all natural resources are owned by the State 
20 
and its peoples and in consonance with Section 4 of the of the Constitution that provides 
21 
that Congress shall, as soon as possible determine by law the specific limits of forest lands 
22 
and national parks, marking clearly their boundaries on the ground. Thereqfier, such forest 
23 
lands and national parks shall be conserved and may not be increased nor diminished, 
24 
except by law. " Also, it is expressly provided in Sec. 12 of RA 8435 (AFMA) that all 
25 
watersheds that are sources of water for existing and potential irrigable areas and 
26 
recharge areas of major aquifers identified by the Department of Agriculture and the 
27 
Department of Environment and Natural resources shall be preserves as such at all times. 
28 
And as such, watershed being the basic forestland management unit that plays an important 
29 
role in sustaining the country's life support system, the State hereby adopts an Act for the 
30 
Protection, Conservation and Rehabilitation of Watersheds Supporting the National 
31. Irrigation Systems. 
32 
33 
Further, the State recognizes the need to protect, conserve and provide the funding 
34 
thereof to these watersheds areas which are considered environmentally critical areas, to 
35 
guarantee a continuous supply of water for irrigation purposes and for other functions to 
36 
ensure food production. 
37 
38 
Also, the State shall adopt rehabilitation and development measures to preserve and 
39 
restore these areas in its original status and shall prohibit environmentally critical projects 
40 
and practices and all other activities which are inconsistent or will endanger the 
41 
environmental stability and hydrological integrity of these watersheds areas which can 
42 
cause disruption to its productive condition. 
43 


1 
SECTION 3. Coveragll-_This Act shall cover all 143 Identified Watersheds supporting 
2 
The National Irrigation Systems (NIS) and portions of classified forest lands which were 
3 
neither proclaimed, des ignated or set aside, pursuant of a law, presidential proclamation, 
4· decree or executive order and all other watershed areas which are supporting water base 
5 
infrastructure that may be proclaimed before and after the passage of this Act. The 
6 
identified watersheds supporting the National Irrigation Systems which form part of the 
7 
established forest reserves and/or established timberland, shall not be subjected to 
8 
disestablishment proceeding pursuant to the provision of Section 7 of the NIP AS ACT or 
9 
R.A. 7586. 
10 
SECTION 4. Basic Policies- the Philippine Strategy for Sustainable Development 
11 
stresses the need to achieve economic growth without degrading environmental quality and 
12 
disputing natural resources. The State hereby adopts the policies to ensure the protection, 
13 
conservation and rehabilitation of watersheds supportiug the uatioual irrigatiou 
14 
systems as an environmentally critical areas and stop the incessant denudation of 
15 
watershed, indiscriminate use offorest resources, degradation of the hydrological balance 
16 
thru logging and mining and other activities which can lead to irreversible damage to the 
17 
environment which in the end will affect the socio-political and economic lives of every 
18 
Filipino. 
19 
(a) 
The State shall protect, conserve and rehabilitate all the Watersheds 
20 
Supporting the National Irrigation System to ensure continuous supply of 
21 
water for itTigation to sustain food production. 
22 
(b) 
The State shall recognize the rights of Indigenous Cultural Communities to 
23 
their ancestral lands to ensure their economic, social, and cultural well-being 
24 
in the event that such lands would be inside the Watersheds Supporting 
25 
National Irrigation Systems. 
26 
(c) 
The State shall protect the Indigenous Peoples occupying the areas inside the 
27 
Watersheds Supporting the National Irrigation System even in the absence of 
28 
proof that it is part of their ancestral domain. 
29 
(d) 
The State shall respect and protect the rights of rural women, whose 
30 
productive and reproductive roles are integral to household and national food 
31 
security, and whose status arising from prevailing gender inequalities add to 
32 
their vulnerability to impacts of climate change, calamities and disasters, and 
33 
non-protection oftheir sources of subsistence such as watersheds. 
34 
(e) 
The State shall prohibit the encroachment of settlers/emigrants, and loggers, 
35 
to prevent the cutting of trees and denudation ofthe forest covers that would 
36 
endanger the hydrological balance of the watersheds and shall permanently 
37 
ban kaingin making or the slash and burn method of farming. 
38 
(f) 
The State shall prohibit all kinds of mining operation and environmentally 
39 
critical projects within the Watersheds Supporting the National Irrigation 
40 
System to prevent the destruction of headwaters, natural waterways and 
41 
aquifers and to preserve the integrity of the water resources. 
42 
(g) 
The State shall be guided by the principle that every Filipino owns all the 
43 
natural resources and it is part of their heritage. As owners of the national 
44 
patrimony, everyone has a social responsibility to protect, conserve and 
45 
develop it for the benefit of all and the generation to come. 
46 . 
(h) 
The State shall institute measures for the creation of National Comprehensive 
47 
Watershed Management or an Integrated Watershed Management Plan to 
48 
ensure the development of a sustainable management plan that can be adapted 
49 
to all the Watersheds Supporting the National Irrigation Systems. 
50 
(i) 
The State shall ensure that watershed as an ecosystem and a basic planning 
51 
and watershed'management unit shall be protected, conserved and developed 
52 
in a holistic, scientific, rights-based, technology based, community-based and 
53 
collaborative manner for the highest and widest public benefit and based on 
54 
the inherent productive capacity and sustainable use of these resources for the 
55 
present and future generations. 


1 
2 
3 
4 
5 
6 
G) 
The State shall ensure the sustainability of water resources, by encouraging a 
meaningful and active participation of stakeholders especially those who are 
directly benefited and there from, establish a sustainable and multi-institution 
capable of addressing natural resources issues in a watershed. 
(k) 
The State shall inculcate the importance of watersheds in building resilience 
to address the effects of climate change. 
7 
SECTION 5. Definition of Terms. 
8 
(a) Ancestral domain -
area generally belonging to indigenous cultural 
9 
communities/indigenous peoples (ICCs/IPs) comprising land, inland waters, 
10 
coastal areas occupied or possessed by ICCs/IPs, by themselves or through 
11 
their ancestors, communally or individually since time immemorial, 
12 
continuously through the present except when interrupted by war, force 
13 
majeure, deceit, stealth, as a consequence of government projects or any other 
14 
voluntary 
dealings 
entered 
into 
by 
government 
and 
private 
15 
individuals/corporations, which are necessary to ensure their economic, social, 
16 
and cultural welfare. (RA 8371-IPRA) 
17 
(b) Ancestral land - refers to all lands exclusively and actually possessed, 
18 
occupied, or utilized by indigenous cultural communities by themselves or 
19 
through their ancestors in accordance with their customs and traditions since 
20 
time immemorial and as may be defined and delineated by law. (RA 7942-
21 
Phil. Mining Act.) 
22 
(c) Communal Irrigation System (CIS)" is an irrigation system that is managed by 
23 
a bona fide Irrigators Association. 
24 
(d) Conservation -
Protection of plant and animal habitat including the 
25 
management of renewable natural resource with the objective of sustaining its 
26 
productivity in perpetuity while providing for human use compatible with 
27 
sustainability of the resource. 
28 
(e) Critical Watershed - A drainage area of a river system supporting existing and 
29 
proposed hydroelectric power, irrigation works or existing water facilities 
30 
needing inunediate protection and rehabilitation to minimize erosion and 
31 
improve water yield. (The above definition is grounded on Presidential 
32 
Declaration 1559, amending PD 705 or the Revised Forestry Code of the 
33 
Philippines 1978. It is also provided under DAO 1996-40 or in the Revised 
34 
IRR of the Philippine Mining Act of 1995 ( RA 7942). 
35 
(f) 
Encroachment - The act or action of using forest land contrary to the provisions 
36 
provided for in forestry laws and regulations with regard to forest land uses. 
37 
(g) Environmentally Critical Areas -
Area delineated as environmentally 
38 
sensitive such that significant environmental impact are expected if certain 
39 
type of proposed projects or programs are located, developed or implemented 
40 
in it. 
41 
(h) Environmentally critical project - Project or program that has high potential 
42 
for significant negative environmental impact. 
43 
(i) 
Forest Degradation - Changes within the forest whether natural or human-
44 
induced which negatively affect the structure or function of the stand or site, 
45 
and thereby lower the capacity to supply products and/or services resulting to 
46 
a degraded forest. 
47 
G) 
Forest Land - Includes public forest, permanent forest or forest reserves, and 
48 
forest reservations. 
49 
(k) Forest Reserves or Permanent Forest - Refer to those lands of the public 
50 
domain which have been the subject of the present system of classification and 
51 
declared to be needed for forest purposes (PD 1559); Forest land which has 
52 
been reserved by the President of the Philippines for any specific purpose or 
53 
purposes. 
54 
(I) 
Forest Resources - Includes soil and all elements found on it, above and below 
55 
the ground in an area classified as forest land. 


1 
(m) Headwaters - The upper reaches of a stream or river. 
2 
(n) Integrated Watershed Management -The process of guiding and organizing 
3 
land and other resource use in a watershed to provide desired goods and 
4 
services without affecting adversely soil and water resources (Brooks et.a!. 
5 
19990). It involves multiple natural resources and requires understanding of 
6 
the relationship among land-use, soil, water and linkages between uplands and 
7 
downstream areas 
8 
(0) Irrigable Lands" refers to lands which display marked characteristics 
9 
justifying the operation of an irrigation system. 
10 
(P) Irrigated Lands" refers to lands services by natural irrigation or irrigation 
11 
facilities. 
12 
(q) Irrigation System- refers to a system of irrigation facilities covering 
13 
contiguous areas 
14 
(r) 
Irrigation water - Portion of a run off that is being used in irrigation. The 
15 
intentional application of water to the soil usually for the purpose of crop 
16 
production. 
17 
(s) Kaingin making - A farming system based on shifting, or slash and bum 
18 
clearing of forest for the planting of agricultural and agro-forestry crops. 
19 
(t) 
Mining operation - means mining activities involving exploration, feasibility, 
20 
development, utilization and processing. (RA 7942) 
21 
(u) National Irrigation System (NIS)- refers to a major irrigation system 
22 
managed by the National Irrigation Administration. 
23 
(v) Public forest - the mass of lands of the public domain which has not been 
24 
subject to the present system of classification for the determination of which 
25 
lands are ne:eded for forest purposes and which are not 
26 
(w) Water Resources - Refers to the quality and quantity of water produced 
27 
naturally as one of the earth's major resources. 
28 
(x) Watershed- A land area drained by a stream or fixed body of water and its 
29 
tributaries having a common outlet for surface-runoff. "Areas that have been 
30 
identified llnd evaluated to provide critical and vital natural, ecological, 
31 . 
environmental and physical beneficial services such as water, biodiversity, 
32 
energy, irrigation, social and cultural, among others to a specific area or 
33 
community and whose existing biophysical condition demands immediate 
34 
rehabilitation, protection and management to prevent its further 
35 
denudation, deterioration and exploitation" (as contained in the definition 
36 
under HB 4382- NLUA Bill), 
37 . 
(y) Watershed Management - The process of guiding and organizing land and 
38 
other resource uses in a watershed to provide desired goods and services 
39 
without adversely affecting soil and water resources. 
40 
(z) Watershed reservation - a forest land reservation established to protect or 
41 
improve the: conditions of water yield thereof or reduce sedimentation. 
42 
SECTION 6. SCOPE- This Act shall cover all 131 Identified Watersheds Supporting the 
43 
165 National Irrigation Systems ofthe National Irrigation Administration, to wit: 
44 
CAR 
45 
1. Chico River Watershed, supporting the Lower Chico and Upper Chico River 
46 
Irrigation Ssystems, located in the provinces of Mt. Province, lfugao, Kalinga and 
47 
Apayao, covering the municipalities of Bauko, Sabangan, Bontoc, Sagada, 
48 
Sandangan, Barlig, Tinoc, Hugdungan, Tanudan, Lubuagan, Tinglayan, Pinukpuk, 
49 
Tabuk, Balbalan, Pasil and Coner with an area of 330,000 hectares, more or less. 
50 
2. Mallig River Watersheds supporting the Mallig River Irrigation System, located 
51 
in the provinces of Kalinga and Mt. Province, covering the municipalities of 
52 
Tanudan, Tabuk, and Paracelis, with an area of 45,580 hectares, more or less 


1 
3. Abulog River Watersshed supporting the Abulog-Apayao River Irrigation 
2 
System, located in the province of Apayao, covering the municipalities of 
3 
Calanasan, Kabugao, Putol, Flora and Coner, with an area of 205,000 hectares, 
4 
more or less. 
5 
4. Manucotae River Watershed, supporting the Pamplona River Irrigation System, 
6 
located in the province of Cagayan and Apayao, covering the municipalities of 
7 
Pamplona and Luna, with an area of 1,920 hectares, more or less. 
8 
REGION 1 
9 
5. Bulu River Watershed supporting the Bulu River Irrgation System, located in the 
10 
province of Ilocos Norte, covering the municipalities of Bangui, with an area of 
11 
17,200 hectares, more or less. 
12 
6. Laoag River Basin, Magalis-Papa River Watershed and Cura River 
13 
Watershed- supporting Bonga Pump No. 1 and 2 and 3, Dingras and Cura R1S, 
14 
located in the province of Ilocos Norte, covering the municipalities of Sarrat, San 
15. 
Nicolas, and Laoag City, Espiritu, Nueva Era and Pinili, with an area of 69,700 
16 
hectares, more or less. 
17 
7. Vintar River Watershed supporting the Laoag-Vintar RIS and NMC Pasuquin 
18 
R1S, located in the province of Ilocos Norte, covering the municipalities ofVintar, 
19 
Burgos and Bangui, with an area of29,000 hectares, more or less. 
20 
8. Sta Maria River Watershed supporting the Sta Maria-Burgos R1S, located in the 
21 
province of Ilocos Sur, covering the municipalities of Burgos, Santiago, 
22 
Banyuyom, Lidlidia and San Emilio, with an area of 16,400 hectares, more or less. 
23 
9. Buaya River Watershed supporting the Buaya RIS, lovcated in the province of 
24 
Ilocos Sur, dcove:ring the municipalities of Candon, Sta Lucia, Gregorio del Pilar, 
25 
Sta Lucia, Salcedo, Sta Cruz, Suyo and Sigay., with an area of 16,800 hectares, 
26 
more or less. 
27 
1O.Amburayan River Watershed and Chico-Paduquit River Watershed 
28 
supporting Amburayan and Tagudin RIS, respectively, located in the provinces of 
29 
Ilocos, Sur, La Union and Benguet, covering the municipalities of Tagudin, 
30 
Sugpon, Sudipen, Atok, Kibungan, Bakun, Tublay, Kapangan, Bugias, Suyo, 
31 
Alilem,Sigay, Cervantes and Bakun with an area of 99,300 hectares,more or less. 
32 
11.Aringay River Watershed- supporting MasalipRlS, located in the provinces of La 
33 
Union and Benguet, covering the municipality of Aringay, Tubao, Pugo, Sablan, 
34 
Tuba and Baguio City, with an area of 27,300 hectares, more or less. 
35 
12.Bued River Watershed- supporting the San Fabian R1S, located in the province of 
36 
Pangasinan, La Union and Benguet, covering the municipalities of San Fabian, San 
37 
Jacinto, Pozorrubio, Sison, Pugo, Rosario, Tuba and Itogon with an area of29,700 
38 
hectares, more or less. 
39 
13.Dumuloc River Watershed- supporting the Dumuloc RIS, located in the provinces 
40 
of Pang as in an and Zambales, covering the municipalities of Bug all on and Sta Cruz, 
41 
with an area of 8,200 hectares, more or less. 
42 
14.Agno River Watershed- supporting the Agno R1S, located in the provinces of 
43 
Benguet, Pangasinan and Nueva Viscaya, covering the municipalities of Buguias, 
44 
Kabayan, Bokol, La Trinidad, Itogon, Baguio City, Sta Maria, San Nicolas, Sto 
45 
Tomas, Asingan, Tayug , San Manuel and Kayapa, with an area of 228,400 
46 
hectares more or less. 
47 
15.Ambayoan River Watershed- supporting the Ambayoan R1S and ADRIS 
48 
Extension, located in the provinces of Pangasinan, Nueva Viscaya and Benguet, 
49 
covering the municipalities of San Nicolas, Sta Fe, Kayapa and Itogon, with an area 
50 
of 5, 900 hectares, more or less. 
51 
16.Dipalo River Watershed- supporting the Dipalo R1S, located in the provinces of 
52 
Pangasinan and Nueva Ecija, covering the municipalities of Umingan and Lupao, 
53 
with an area of 4,200 hectares, more or less. 


1 
17.Agno-Banawan River Watershed- supporting the Lower Agno-Totonogen RIS, 
2 
located in the province of Pangasinan with an area of more or less. 
3 
18 .Agno-Sinncalan-Tuboy Watershed- supporting the Agno-Sinucalan RIS, located 
4 
in the provinces of Pangasinan and Benguet, covering the municipalities of San 
5 
Manuel and Itogon with an area of 152,350 hectares, more or less. 
6 
7 
REGION 2 
8 
19.Magat River Watershed- supporting the Magat River Irrigation System 
9 
(MARIIS) located in the provinces of Nueva Viscaya, Isabela and lfugao, covering 
10 
the municipalities ofDupax del Norte, Dupax del Sur, Aritao, Bayombong, Solano, 
11 
Bagabag, Diac, Ramon, Naguilian, Hagan, Gamu, Lagawe and Mayayao with an 
12 
area of 412,300 iIlectares, more or less. 
13 
20.Baua River Watershed (Convergence WFR)- supporting the Baua RIS, located 
14 
in the provinces of Cagayan, covering the municipality of Gonzaga, with an area of 
15 
5,000 hectares, more or less. 
16 
21.Dummun River Watershed- supporting the Dummon RIS, located in the province 
17 
of Cagayan, covering the municipality of Capissayan, with an area of 20,600 
18 
hectares, more or less .. 
19 
22.Pared River Watershed- supporting Baggao RIS located in the province of 
20 
Cagayan, covering the municipality of Baggao and Penablanca, with an area of 
21 
20,950 hectares, more or less. 
22 
23.Zinundungan river Watershed- supporting Zinundungan RIS, located in the 
23 
provice of Cagayan, covering the municipality of Sto Nino, with an area of 21,500 
24 
hectares, more or less. 
25 
24.Pinacanauan de Tuguegarao River Watershed- supporting Pinacanauan RIS, 
26 
located in the province of Cagayan, covering the municipalities of Penablanca and 
27 
Maconancon, with an area of 12,920 hectares, more or less. 
28 
25.Pinacanauan de San Pablo Watershed- supporting the San Pablo-Cabagan RIS, 
29 
located in the province of Isabela, covering the municipalities of San Pablo and 
30 
Maconancon, with an area of 13,450 hectares, more or less. 
31 
26.Pinacanauan die Tumauini River Watershed- supporting the Tumauini RIS, 
32 
located in the province of Isabela, covering the municipalities of Tumauini, 
33 
Cabagan, Divilaean, and Maconancon, with an area of 17,630 hectares, more or 
34 
less. 
35 
36 
REGION 3 
37 
27.Tarlac River Watershed and Odonell Watershed- supporting Tarlac, Odonell 
38 
and San Miguel IUS, located in the provinces of Tarlac and Zambales, covering the 
39 
municipalities of Capas, Bamban, Tarlac City and Botolan, with an area of 54,850 
40 
hectares, more or less, 
41 
28, Camiling River Watershed- supporting Camiling RIS, located in the provinces 
42 
of Tarlac and Zambales, covering the municipalities of Mayantoc, Candelaria and 
43 
Masinloc with an area of 8,580 hectares,more or less. 
44 
29. Upper Pampalllga River Watershed and Coronnel River Watershed -
45 
supporting UPRIS-II and UPRIS III- (Aula Watershed) located in the province of 
46 
Nueva Ecija, covering the municipalities ofPantabangan, Caranglan, Palayan City 
47 
and Bongabon with an area of more or less. 
48 
30,Caulaman River Watershed- supporting the Caulaman RIS located in the 
49 
provinces of Zambales and Pampanga, covering the municipalities of San 


1 
Marcelino, Castillejos, Subic and Floridablanca with an area of 1,800 hectares 
2 
more or less. 
3 
31.Nayom River Watershed- supporting the Nayom RIS located in the provinces of 
4 
Zambales and Pangasinan, covering the municipalities of Sta Cruz, Infanta and 
5 
Bugallon with an area of 14,450 hectares, more or less. 
6 
32.Cabaluan Rivel' Watershed- supporting the Bayto RIS located in the province of 
7 
Zambales, covering the municipalities of Sta Cruz and Candelaria with an area of 
8 
11,260 hectares, more or less. 
9 . 
33.Sto Tomas River Watershed- supporting the Sto Tomas RIS located in Zambales, 
10 
covering the municipality of San Narciso with an area of 18,100 hectares, more or 
11 
less. 
12 
34.Bucao River Watershed- supporting Bucao RIS, located in the province of 
13 
Zambales, covering the municipalities of Botolan, Cabangan, San Felipe, Iba and 
14 
San Marcelino with an area of 55,320 hectares, more or less. 
15 
35.Porac-Gumain River Watershed- supporting the Porac-Gumain RIS (2 Intake), 
16 
located in the province of Pampanga, covering the municipalities of Porac and 
17 
Floridablanca with an area of 22,500 hectares, more or less. 
18 
36.Angat-Maasim River Watershed- supporting the Angat-Maasim RIS, located in 
19 
the provinces of Bulacan and Pampanga, covering the municipalities of Angat, 
20 
Norzagaray, San Ildefonso, San Rafael and San Luis with an area of 61,300 
21 
hectares, more or less. 
22 
37.Angat-Ipo River Watershed (Convergence WFR)- supporting the Ipo Dam 
23 
(MWSS), located in the provinces ofBulacan and Rizal, covering the municipalities 
24 
of Norzagaray, San Jose del Monte, and Rodriguez (Montalban) with an area of 
25 
6,600 hectares, more or less. 
26 
38.Pinulot River Watershed- supporting the Colo RIS located in the provinces of 
27 
Bataan and Zarnbales, covering the municipalities of Dinalupihan, Hermosa, 
28 
Morong, Olongapo City and Subic with an area of 8,850 hectares, more or less. 
29 
39.Dingalan Watershed- supporting the ---------, located in the propvince of Aurora, 
30 
covering the municipality of Dingalan, with an area of more or less. 
31 
32 
33 
REGION4A 
34 
40.Balanac River Watershed- supporting the Balanac RIS located in the province of 
35 
Laguna, Quezon covering the municipalities of Magdalena, Majayjay, Lusiana, and 
36 
Lucban with an area of 6,600 hectares, more or less. 
37 
41.Mabacan River Watershed- supporting the Mabacan RIS, located in the province 
38 
of Laguna, with an area of 4,900 hectares, more or less. 
39 
42.LIano River Watershed- supporting the Mayor RIS, located in the provinces of 
40 
Laguna and Quezon, with an area of 3,300 hectares, more or less. 
41 
43. Sta Cruz River' watershed- supporting Sta Cruz RIS, located in the province of 
42 . 
Laguna with an area of 8,000 hectares, more or less. 
43 
44.San Antonio River Watershed- supporting Sta Maria RIS, located in the 
44 
provinces of Laguna, Rizal and Quezon, with an area of 1,150 hectares, more or 
45 
less. 
46 
45.NPC Tailrace lIInd Lewin Creek- supporting the Lumban RIS, located in the 
47 
province of Laguna, with an area of 1,350 hectares, more or less. 
48 
49 


1 
LAGUNA FLIS - 30,630 HECTARES more or less 
2 
46.Macabling Riv,er Watershed- supporting the Macabling RIS, located in the 
3 
province of Laguna, covering the municipality of Cabuyao, with an area of more or 
4 
less. 
5 
47 .San Cristobal River Watershed- supporting Cabuyao East PIS, San Cristobal RIS 
6 
and Diezmo RIS, located in the provinces of Laguna and Cavite, covering the 
7 
municipalities of Cabuyao, Canlubang, Calamba, Silang and Tagaytay City, with 
8 
an area of more or less. 
9 
48.San Juan River Watershed- supporting the San Juan RIS, located in the provinces 
10 
of Laguna and Batangas, covering the municipalities of Calamba, Sto Tomas, 
11 
Tanauan ans Malvar with an area more or less. 
12 
13 
CA VITE FLIS - 52,900 hectares, more or less 
14 
49.Maragondon River Watershed- supporting the Balayugan A Dam, Balayugan B 
15 
Dam, located in the province ofCavite, covering the municipality ofNaic, with an 
16 
area of more or less. 
17 
50.Caisobo River Watershed- supporting the Culong-Culong Dam, located in the 
18 
province of Cavite, covering the municipality of Indang, with an area of more or 
19 
less. 
20 
51.Labac-Alemang River Watershed- supporting the Sahing Dam and Bancud Dam, 
21 . 
located in the province of Cavite, covering the municipalities of Naic and Indang 
22 
with an area of more or less. 
23 
52.Timalam River Watershed- supporting the Tres Cruses Dam, located in the 
24 
province of Cavite, covering the municipality of Tanza. 
25 
53.Canas River Watershed- supporting the Bayan Dam, Plucena Dam, Matanda A 
26 
Dam, and Matanda B Dam, all located in the province of Cavite, covering the 
27 
municipalities of General Trias, and Tanza. 
28 
54.Ylang-Ylang River Watershed- supporting the Pasong Kastila Dam, Butas 
29 
Marcelo Dam, San Agustin Dam and Butas Navarro Dam, all located in the 
30 
province of Cavite, covering the municipalities of Imus, General Trias, and 
31 
Dasmarinas. 
32 
55.Lasong Camachile River Watershed- supporting the Butas Lawang Bato Dam, 
33 
located in the province of Cavite, covering the municipality of General Trias. 
34 
56.lmus River Wliltershed- supporting the Julian Dam, Makuling Dam, Luksuhin 
35 
Dam and Embarcadero Dam, all located in the province of Cavite, covering the 
36 
municipality ofImus, Dasmarinas. 
37 
57.Zapote River Watershed- supporting the Molino Dam located in the province of 
38 
Cavite, covering the municipality of Bacoor. 
39 
40 
41 
58.Palico River Watershed- supporting the Palico RIS, located in the province of 
42 
Batangas, covering the municipalities ofTuy and Nasugbu, with an area of 11,800 
43 
hectares, more less. 
44 
59.Lagnas River Watershed- supporting the Lagnas RIS, located in the province of 
45 
Quezon, covering the municipality of Candelaria, with an area of 1,860 hectares, 
46 
more or less. 


1 
60.Hanagdong River Watershed- supporting the Hanagdong RIS, located in the 
2 
province of Quezon, covering the municipalities of Candelaria and Sariaya, with an 
3 
area of 1,360 hectares, more or less. 
4 
61.Dumacao River Watershed- supporting Dumacao RIS, located in the province of 
5 
Quezon, covering the municipality of Tayabas, with an area of 8,500 hectares, 
6 
more or less. 
7 
62.Agos River Watershed- supporting Agos RIS, located in the province of Quezon 
8 
and Rizal,covering the municipalities of General Nakar, Infanta, Real, Tanay, and 
9 
Teresa, with an area of91,260 hectares, more or less. 
10 
63.Marikina River Watershed (Convergence WFR)- Supporting the Wawa Dam, 
11 
located in the province of Rizal, covering the municipalities of Tanay, Montalban, 
12 
Antipolo, Baras and Teresa, with an area of 18,966 hectares, more or less. 
13 
14 
REGION 4B 
15 
64.Bansud River Watershed - supporting the Bansud RIS, located in the province of 
16 
Minddoro Oriental, covering the municipalities of Bongabong and Pinamalayan, 
17 . 
with an area of 7,000 hectares, more or less. 
18 
65.Baco-Bocayao River Watershed- supporting the Baco RIS, located in the 
19 
province of Mindoro Orienrtal and Mindoro Occidental, covering the 
20 
municipalities of Baco, Naujan, San Teodoro, Sablayan and Sta Cruz, with an area 
21 
of26,000 hectares, more or less 
22 
66.Pula River Watershed- supporting the Pulas RIS, located in Mindoro Oriental, 
23 
covering the municipality of Pinamalayan, with an area of 12,970 hectares, more 
24 
or less. 
25 
67.Mag-asawang Tubig-Mapalo Rivers Watershed-
supporting Mag-asawang 
26 
Tubig RIS, located in the province of Mindoro Oriental and Mindoro Occidental, 
27 
covering the municipalities Naujan and Sablayan, with an area of 19,565 hectares, 
28 
more or less 
29 
68.Pagbahan River Watershed- supporting the Pagbahan RIS, located in the 
30 
province of Mindor Oriental and Mindoro Occidental, covering the municipalities 
31 
of San Teodoro, Puerto Galera, Mamburao and Sta Cruz. With an area of 23,380 
32 
hectares, more or less. 
33 
69.Amnay-Patrick River Watershed- supporting Amnay-Patrick RIS, located in the 
34 
province of Mindor Occidental and Mindoro Oriental, covering the municipalities 
35 
of Sta Cruz, Sablayan, Baco and San Teodoro, with an area of 20,750 hectares, 
36 
more or less. 
37 
70.Mongpong River Watershed- supporting the Mongpong RIS, located in the 
38 
province of Mindoro Occidental, covering the municipality of Sablayan, with an 
39 
area of 22,300 hectares, more or less. 
40 
71.Cagaray River Watershed- supporting the Cagaray RIS, located in the province 
41 
of Mindoro Oriental and Mindoro Occidental, covering the municipalities of 
42 
Mansalay, Bulalacao and San Jose with an area of 12,900 hectares, more or less. 
43 
72.Lumintao River Watershed- suppoting the Lumintao RIS, located in the province 
44 
of Mindoro Occidental, covering the municipality of Sablayan, with an area of 
45 
38,600 hectares, more or less. 
46 
73.Malasgao River Watershed- supporting the MalasgaoRIS, located in the 
47 
provinde of Palawan, covering the municipalities of Quezon and Aborian, with an 
48 
area of 6,360 hectares, more or less. 
49 
50 


1 
REGION 5 
2 
74.Ponso River Watershed- supporting the Hibiga RIS, located in the province of 
3 
Albay, covering the municipalities of Pulangni and oas, with an area of 10,900 
4 
hectares, more or less. 
5 
75.Basay River W lltershed- supporting the Mahaba RIS, located in the province of 
6 
Albay, covering the municipality of Liago and Oas, with an area of more or less. 
7 
76.Nasisi River Watershed- supporting the Nasisi RIS, located in the province of 
8 
Albay, covering the municipalities of Ligao and Guinobatan, with an area of more 
9 
or less. 
10 
77.Bublusan Watershed-
supporting the Ogsong RIS, located in the province of 
11 
Albay, covering the municipalities of Guinobatan and Camalig, with an area of 
12 
more or less. 
13 
78.Buhi-Iriga River Watershed- supporting the Buhi-Lalo and Lake Buhi RIS, 
14 
located in the province ofCamarines Sur and Albay, covering the municipalities of 
15 
Buhi, Nabua, Iriga City, Tiwi, with an area of 41,350 hectares, more or less. 
16 
79.Nabua River Wartershed- supporting the Barit (Rida) RIS, located in the province 
17 
of Camarines Sur, covering the municipalities of Baao, Buhi and lriga City witn an 
18 
area of 19,500 hectares, more or less. 
19 
80.Daet River Watershed- supporting the Daet RIS, located in the province of 
20 
Camarines Norte, covering the municipalities of Daet, San Vicente, and Basud, 
21 
with an area of 6,320 hectares, more or less. 
22 
81. Talisay River Watershed- supporting the Talisay RIS, located in the province of 
23 
Camarines Norte, covering the municipalities ofDaet and San Vicente, with an area 
24 
of 2,820 hectares, more less. 
25 
82.Sipocot -Pulantuna Watershed- supporting the Libmanan-Cabusao RIS, located 
26 
in the province of Camarines Sur and Camarines Norte covering the municipalities 
27 
of Libmanan, Sipocot, Lupi, Ragay del Gallego, and Daet, with an area of 54,000 
28 
hectares, more or less. 
29 
83.PiIi River Watershed- supporting the Pili RIS, located in the province of 
30 
Camarines Sur, eovering the municipality of Pili, with an area of 2,680 hectares, 
31 
more orless. 
32 
84.Tigman River Watershed- supporting the THIRIS Tigman Dam, located in the 
33 
province of Camarines Sur, covering the municipalities of Calabanga and 
34 
Tinambac, with an area of 8,990 hectares, more or less. 
35 
85.Hinagyanan River Watershed- supporting the THIRIS Hinagyanan Dam---------
36 
37 
86.Inainigan/lnarihan Watershed- supporting the THIRIS Inarihan Dam-------------
38 
39 
87.Sabang River Watershed- supporting the San Francisco RIS, located in the 
40 . 
province of Sorsogon---------------------------------------
41 
88.Tubugan River Watershed- supporting the San Ramon RIS, located in the 
42 
province of Sorsogon, covering the municipalities of Bulan, Irosin,and Matnog, 
43 
with an area of 1,590 hectares, more or less. 
44 
45 
REGION 6 
46 
89.Tipuluan River Watershed (Convergence WFR) - supporting the Sibalom-San 
47 
Jose RIS, located in the province of Antique, covering the municipalities of 
48 
Sibalom and San Jose, with an area of 61,600 hectares, more or less. 
49 
90.Mambusao River Watershed- supporting the Mambusao RIS, located in the 
50 
provcince of Capiz and Aklan, covering the municipalities of Sapian, Jamindan, 
51 
Mambusao and Altavas, with an area of31,630 hectares, more or less. 


1 
91.Aganan River Watershed (joined to Tigum)- supporting the Aganan RIS, located 
2 
in the province of Iloilo, covering the municipalities of Alimodian, and Maasin with 
3 
an area of 11,300 hectares, more or less. 
4 
92.Barotac Viejo River Watershed- supporting the Barotac-Viejo RIS, located in the 
5 
province of Iloilo, covering the municipalities ofBarotac Viejo, Lemery and A-Juy, 
6 
with an area of9,150 hectares, more or less. 
7 
93.Jalaur River Watershed (Convergence WFR)-
supporting the Jalaur RIS, 
8 
located in the province of Iloilo, covering the municipalities of Dingle, Pototan, 
9 
Janiuay, Passi, Duenas, Calinog, Lambunao, Anilao, Banate and Barotac Viejo, 
10 
with an area ofl07,700 hectares, more or less. 
11 
94.Jalaur-Suage River Watershed- supporting the Suage RIS, located in the 
12 
province of Iloilo, covering the municipalities of Janiuay, Maasin, Cabatuan, and 
13 
Lucena, with an area of 17,480 hectares, more or less. 
14 
95.Sibalom River Watershed- Sibalom-Tigbauan RIS, located in the province of 
15 
Iloilo, covering the municipalities of Leon, Alimodian and Tigbauan, with an area 
16 
of 11,400 hectares, more or less. 
17 
96.Tigum River Watershed(joiued to Aganan)- supporting the Sta Barbara RIS, 
18 
located in the province of Iloili and Antique, covering the municipalities of 
19 
Cabatuan, Maasin, Janiway, Valderama and San Remigio, with an area of 19,200 
20 
hectares, more or less. 
21 
97.Bago River Watershed (Convergence WFR)- supporting the Bago RIS, located 
22 
in the province ofNegros Occidental, covering the municipalities ofBago, Murcia, 
23 
Talisay, San Carlos and Calatrava, with an area of 62,500 hectares, more or less. 
24 
98.Pagiplan River Watershed- supporting the Pagiplan RIS, located in the province 
25 
of Negros Occidental, covering the municipalities of Binalbagan, with an area of 
26 
1,756 hectares, more or less. 
27 
99.Ibajay River Watershed- supporting the Panukayan RIS, located in the province 
28 
of Aldan, covering the municipality of Ibajay, with an area of 23,400 hectares, 
29 
more or less 
30 
31 
REGION 7 
32 
100. Caruod Watershed- supporting the ---------RIS, located in the province of Bohol, 
33 
covering the municipalities of Ubay, Mabini and Alicia, with an area of more or 
34 
less.--------------.. --------
35 
101. Matutinao Watershed- supporting the -------RIS, located in the province ofCebu, 
36 
covering the municipality of Badian, Alegria, Malabuyoc, Alcoy and Dalaguete, 
37 
with an area of more or less. 
38 
REGION 8 
39 
102. Magon-Bucan River Watershed- supporting the Balire North RIS, located in the 
40 
province ofLeyte, covering the municipalities of La Paz, Mac Arthur and Inayupan, 
41 
with an area of 4,500 hectares, more or less. 
42 
103. Bao River Watershed- supporting the Bao RIS, located in the province of Leyte, 
43 
covering the municipalities ofOrmoc City, Kananga, Capoocan and Cariagara with 
44 
an area of 5,800 hectares, more or less. 
45 
104. Binahaan River Watershed- supporting the Binahaan South RIS, Binahaan North 
46 
RIS, and Lower Binahaan RIS, located in the province of Leyte, covering the City 
47 
ofOrmoc, Municipalities of Jara, Pastrana and Dagami, Tanauan and Palo with an 
48 
area of21,910 hectares, more or less. 


1 
105. Bito River Watershed- supporting the Bito RIS, located in the province of Leyte, 
2 
covering the municipalities of Inayopan, Abuyog, and Baybay, with an are of 
3 
11,380 hectares, more or less. 
4 
106. Daguitan River Watershed- supporting the Daguitan RIS, located in the province 
5 
of Leyte, covering the municipalities of Burauen, Albuera, and Dagami with an 
6 
area of 4,300 hectares, more or less. 
7 
107. Gibuga River Watershed- supporting the Gibuga RIS, located in the province of 
8 
Leyte, covering the municipalities of Burauen, Julita, Du1ag, La Paz and Sta Cruz, 
9 
with an area of 5,400 hectares, more or less. 
10 
108. Guinarona River Watershed- supporting the Guinarona RIS, located in the 
11 
province of Leyte, covering the municipalities ofDagami and Burauen with an area 
12 
of 1,450 hectares, more or less. 
13 
109. Mainit River Watershed- supporting the Mainit RIS, located in the province of 
14. 
Leyte, covering the municipalities of Carigara, Jaro, and A1ang-a1ang with an area 
15 
of 3,150 hectares, more or less. 
16 
110. Pongso River Watershed- supporting the Pongso RIS, located in the province of 
17 
Leyte, covering the municipalities of Carigara, Barugo, and Tunga, with an area of 
18 
·4,020 hectares, more or less. 
19 
111. Palo River Watershed- supportiug the Suong-Tibak RIS, located in the province 
20 
of Leyte, covering the municipalities of Palo, Jaro, Sta Fe, Alang-alang, and 
21 
Tacloban City, with an area of 2,350 hectares, more or less. 
22 
112. Salug River Watershed- supporting the Hindang-Hilogos RIS, located in the 
23 
province of Leyte, covering the municipalities of Hindang, Hilongos and Inopacan, 
24 
with an area of 7,200 hectares, more or less. 
25 
26 
27 
REGION 9 
28 
113. Dipolo River Watershed- supporting the Dipolo Dam (RIS) and Salug RIS, 
29 
located in the provinces of Zamboanga del Sur, covering the municipality of 
30 
Mo1ave with an area of 67,200 hectares, more or less. 
31 
114.Lahangan-Pulusan-Lantian-Tiwagan River Watersheds-
supporting the 
32 
Labangan RIS, located in Zamboanga del Sur, covering the municipalities of 
33 
Labangan, and Pagadian City with an are of 43,360 hectares, more or less. 
34 
115. Sihuguey-DipiJi Rivers- supporting the Sibuguey Vallye RIS, located in the 
35 
province of Zamboanga del Sur with an area of21,800 hectares, more or less. 
36 
REGION 10 
37 
116. Manupali River (Convergence WFR)- supporting the Manupali RIS, located in 
38 
the province of Bukidnon, covering the municipality of -------- with an area of 
39 
13,850 hectares, more or less. 
40 
117. Muleta-Kulaman River Watershed (Convergence WFR)- supporting the Muleta 
41 
RIS, located in the Bukidnon, covering the municipality of Pangantukan and 
42 
Maramag, with an area of21,450 hectares, more or less. 
43 
118. Roxas Kuya River Watershed- supporting the Roxas Kuya RIS, located in the 
44 
province of Bukidnon, covering the municipality of Mara mag, with an area of9,300 
45 
hectares, more or less. 
46 
119. Dipolo-Marandling River Watrershed- supporting the Maranding RIS, located in 
47 
the province of Lanao del Norte, covering the municipalities of Nunungan and 
48 
Kapatagan, with an area of 39,350 hectares, more or less. 


1 
2 
REGIONll 
3 
120. Batutu Watershed- supporting the Batutu RlS, located in the province of 
4 
Compostela Valley, covering the municipality of Compostela, with an area of 
5 
10,500 hectares, more or less. 
6 
121. Libuganon River Watershed- supporting the Libuganon RlS, located in the 
7 
province of Davao del Norte and Compostela Valley, covering the municipalities 
8 
of Kapalong, Sto Tomas, Asuncion, San Vicente, New Correia, Tagum City, 
9 
Nabunturan, Moncayo and Montevista, with an area of 74,730 hectares, more or 
10 
less. 
11 
122. Saug River Watershed- supporting the Saug RlS, located in the province ofDavao 
12 
del Norte, Compostela Valley, covering the municipalities of Kapalong, Asuncion 
13 
and Nabunturan, with an area of 41,100 hectares, more or less. 
14 
123. Lasang River Watershed- supporting the Lasang RlS, located in the province of 
15 
Davao del Norte, covering the municipalities ofKapalong, Panabo and Davao City, 
16 
with an area of39,450 hectares, more or less. 
17 
124. Matanao River Watershed- supporting the Mal RlS, located in the province of 
18 
Davao del Sur, covering the municipality of Dig os, with an area of35,400 hectares, 
19 
more or less. 
20 
125. Padada River Watershed- supporting the Padada RlS, located in the province of 
21 
Davao del Sur and North Cotabato, covering the municipalities of Digos and 
22 
Makilala, with an area of 81,850 hectares, more or less. 
23 
126. Sumlog River Watershed- supporting the Lupon RIS, located in the provinces of 
24 
Davao Oriental and Davao del Norte, covering the municipalities ofLupon, Banay-
25 
Banay, Mati and Pantukan with an area of25,540 hectares, more or less. 
26 
127. Buayan-Tinagacan Rivers- supporting the Buayan RlS, located in the province of 
27 
Davao del Sur, Sarangani and South Cotabato, covering the municipalities of 
28. 
Malalag, Sta Maria, Malita, Malungon, Alabel, Polomolok and General Santos 
29 
City, with an area of 7,580 hectares, more or less. 
30 
REGION 12 
31 
128. Kabacan River Watershed-supporting the Kabacan-Pagalungan RlS, located in 
32 
the' province of North Cotabato, covering the municipalities of Kabacan and 
33 
Kidapawan with an area of 74,000 hectares, more or less. 
34 
129. Libungan River Wateshed- supporting the Libungan RlS, located in the province 
35 
of North Cotabato, covering the municipality of Libungan, with an area of 51,700 
36 
hectares, more or less. 
37 
130. M'lang River Watershed- supporting the M'lang RIS, located in the province of 
38 
North Cotabato, covering the municipalities of M'lang and Makilala with an area 
39 
of20,100 hectares, more or less. 
40 
131. Malasila River Watershed- supporting the Malasila RlS, located in the province 
41 
of North Cotabato, covering the municipalities of Tuluran and Makilala with an 
42 
area of31,200 hectares, more or less. 
43 
132. Allah River Watershed- supporting Allah I RlS and Allah II -Lambayong RlS, 
44 
located in the province of South Cotabato, covering the municipalities of T'boli, 
45 
Norala and Surallah, with an area of 158,290 hectares, more or less. 
46 
133. Banga River Watershed- supporting the Banga RlS, located in the province of 
47 
South Cotabato, covering the municipality of Banga, with an area of 28,800 
48 
hectares, more or less. 
49 
1:34. Silway River Watershed- supporting the Silway RlS, located in the province of 
50 
South Cotabato, covering the municipalities of Dadiangas, Polomolok and 
51 
Koronadal, with an area of 53,300 hectares, more or less. 


1 
135. Palian River Watershed- supporting the Marhel RIS 1&2, located in the province 
2 
of South Cotabato, covering the municipalities of Marbel and Tupi with an area of 
3 
20,675 hectares, more or less. 
4 
136. Alip River Watershed- supporting the Alip RIS, located in the province of Sultan 
5 
Kudarat, covering the municipalities of Columbio, Lutavan, with an area of 37,950 
6 
hectares, more or less. 
7 
REGION13 
8 
137. Cabadbaran River Watershed (Convergence WFR)- supporting the Cabadbaran 
9 
RIS, located in the province of Agusan del Norte, covering the municipality of 
10 
Cabadbaran, with an area of 7,350 hectares, more or less. 
11 
138. Taguibo River Watershed- supporting Taguibo RIS, located in the province of 
12 
Agusan del Norte, covering the municipality of Butuan City and Cabadbaran with 
13 
an area of 8,430 hectares, more or less. 
14 
139. Andanan River Watershed (Convergence WFR)- supporting the AndananRIS, 
15 
located in the province of Agusan del Sur, covering the municipality of Bayugan 
16 
with an area of 19,200 hectares, more or less. 
17 
140. Simulao River Watershed- supporting the Simulao RlS, located in the provinces 
18 
of Agusan del Sur and Surigao del Sur, covering the municipalities of Bunawan, 
19 
Trento, Bislig and Lingig with an area of 42,900 hectares, more or less. 
20 
141. Caracan River Watershed- supporting the Cantilan RlS, located in the provinces 
21 
of Surigao del Sur and Agusan del Norte, covering the municipalities of Madrid 
22 
and Jagupit, with an area of12,180 hectares, more or less. 
23 
142. Tago River Watershed- supporting the Tago RlS, located in the province of 
24 
Surigao del Sur and Agusan del Sur, covering the municipalities of Tago, Cagwit 
25 
and Bayugan with an area of 118,000 hectares, more or less. 
26 
ARMM 
27 
143. Gata River Watershed- supporting the Rugnan RlS, located in the province of 
28 
Lanao del Sur, covering the municipalities ofMaguindanao, Lumba-Bayabao, with 
29 
an area of 18,500 hectares, more or less. 
30 
31 
SECTION 5. Inclusions of other areas which can form part of the Watershed 
32 
Supporting the N ationaIlrrigation System- Lands of the public domain which have been 
33 
classified as forestland or timberland pursuant to Section 3 of the 1987 Constitution and 
34 
unclassified forestlands which are actually, directly and found to be essential for irrigation 
35 
purposes and all other watershed areas which are supporting water base infrastructure, can 
36 
be included in the list after the passage of this Act thru the following procedures: 
37 
38 
a) Within one (1) year from the effectivity of this Act, The DENR, thru the Forest 
39 
Management Bureau, upon the recommendation of the Department of Agriculture 
40 
thru the National Irrigation Administration, shall submit to the Office of the 
41 
President, applicationls for inclusion in the List of Watersheds Supporting the 
42 
National Irrigation System, which shall contain the following: 
43 
44 
1. Topographic maps ascertaining the location of the 
45 
watersheds to avert any trans- boundary issues especially if 
46 
the watershed embraces two or more municipalities. 
47 
2. Maps including characterization of the watershed with legal 
48 
descriptions of boundaries. 
49 
3. Sangguniang 
Barangay, 
Sanguniang 
Bayan, 
and 
50 
Sangguniang Panglalawigan Resolutions asserting the need 


1 
for the inclusion of the watershed in the List of Watersheds 
2 
Supporting the National Irrigation Systems, for the 
3 
protection, conservation and rehabilitation of the same. 
4 
4. Copy of Joint LGU Resolutions, MOAIMOU or any 
5 
agreements 
for 
the 
protection, 
conservation 
and 
6 
rehabilitation of the watershed, especially if the coverage is 
7 
within two or more municipalities to avoid duplication in the 
8 
filing of application and to prevent possible irritants on 
9 
boundary issues. 
10 
5. Copy of watershed management plan. 
11 
6. Copy of a watershed resource profile, specifically, 
12 
information on the to the following: 
13 
6.1) estimated water run-off 
14 
6.2) forest cover of the watershed 
15 
6.3) estimated area to be serviced by the 
16 
watershed (in hectares) 
17 
6.4) multiple uses of water resources 
18 
19 
b) The President shall issue a presidential proclamation designating the recommended 
20 
watershed/s to form part of the List of Watersheds Supporting the National 
21 
Irrigation Systems and provide for the same protection, conservation and 
22 
rehabilitation. 
23 
c) Forest lands and timberland being primary classification of public lands pursuant 
24 
to the provision of Section 3 of Article 12 of the 1987 Constitution, and the 
25 
President having been vested the responsibility over primary classification oflands 
26' 
of the public domain pursuant to the provision of Commonwealth Act No.141 
27 
[1936], Sec. 6 and Executive Order No. 192 [1987], shall exercise such function 
28 
upon the recormnendation ofthe DENR and such classificationls does not warrant 
29 
concurrence of Congress. 
30 
31 
SECTION 6. Prohibitions: In line with the provision of Section 4 of the Constitution, 
32 
whereby the specific limits offorestlands shall be determined by law, marking clearly their 
33 
boundaries on the ground, thereafter, such forestland shall be conserved and may not be 
34 
increased nor diminished except by law. The following acts shall be prohibited: 
35 
1. Watershed as an integral part of established forest reserves 
36 
shall not be subjected to disestablishment proceedings 
37, 
pursuant to the provision of Section 7 of the National 
38 
Integrated Protected Areas Act or R.A. 7586. 
39 
2. Watersheds supporting the National Irrigation Systems shall 
40 
not be subjected to a Protected Area Suitability Assessment 
41 
(PASA) by the PAWB, to determine their suitability or 
42 
non-suitability for preservation as a protected area. 
43 
Rather, watersheds supporting the National Irrigation 
44 
System if found to be degraded shall be maintained, 
45 
protected and rehabilitated and restore it to its former growth 
46 
and vegetation. 
47 
3. The inclusion of Watersheds Supporting the National 
48 
Irrigation System according to the appropriate categories as 
49 
protected areas under the NIP AS framework shall no longer 
50 
apply. 
51 
4. Multiple uses of watershed resources shall be strictly 
52 
prohibited. The water resources which are the inherent 
53 
contribution of watershed must be conserved, protected and 
54 
enhanced to produce its optimum capacity. 


1 
2 
3 
CHAPERII 
4 
ADMINISTRATION AND MANAGEMENT PLANS. 
5 
SECTION 7. Jurisdiction, Control and Management of Watershed Supporting 
6 
National Irrigation Systems. The Department of Environment and Natural Resources thru 
7 
the Bureau of Forests Management in collaboration with the Department of Agriculture 
8 
thru the National Irrigation Authority shall have exclusive and primary jurisdiction, control 
9 
and management on all identified Watersheds Supporting the National Irrigation Systems. 
10 
SECTION 8. 
Creation Watershed Snpporting the National Irrigation System 
11 
Council- The DENR and the DA shall create Watershed Supporting the National 
12 
Irrigation System Council, which shall be composed of the Secretary of DENR and 
13 
Secretary of DA, acting as Co-Chairmen and the Director of the Forest Management 
14 
Bureau and the Administrator of the National Irrigation Administration as Vice Chairmen 
15 
and the following as members: 
16 
I, Department of Budget and Management 
17 
2, Department of Local Government 
18 
3, DPWH 
19 
4, Land Bank of the Philippines 
20 
5. NPC (Hydro-electric) 
21 
6. PNOC -EDC (Geothermal) 
22 
7, NWRB (Domestic-Industrial Water) 
23 
8, LWUA (Domestic Water) 
24 
9. 3 Representative from IPs (Luzon, Visayas, Mindanao) 
25 
10. Representatives from the affected Sectors (Rotational-based on regional 
26 
concern) Local Waterworks, Local Hydro-Electric Concessionaire, 
27 
Tenured migrants and Local Government Unit 
28 
29 
SECTION 9. Participation of LGUs and other stakeholders in the Watershed 
30 
Management Plans- All Local Government Units where the watersheds supporting the 
31 
national irrigation systems are situated shall be involved in the planning, development and 
32 
implementation of a comprehensive watershed management plan which must be holistic, 
33 
scientific, rights-based, technology based and community-based and which shall be done 
34 
in a collaborative mauner to ensure that the protection of the watershed, the conservation 
35 . of its water resources and the preservation of its inherent productive capacity will be 
36 
sustained to bring about the highest and widest benefit for the present and future 
37 
generations The sustainability of water resources must be ensured by encouraging the 
38 
meaningful and active participation of stakeholders especially those who are directly 
39 
benefited and there from, establish a sustainable and multi-institution capable of addressing 
40 
natural resources issues in a watershed. 
41 
There shall be common responsibility from the LGUls and the stakeholders in the 
42 
implementation of the Watershed Management Plan for the conservation, protection and 
43 
rehabilitation of the Watershed Supporting the National Irrigation System. 
'44 
SECTION 10- Creation of Provincial and Municipal Co-Management Board- To 
45 
enable to sustain the effort of rehabilitation, conservation and protection of the Watershed 
46 
Supporting the National Irrigation System, a, Provincial and Municipal Co-Management 
47 
Board shall be established to facilitate joint efforts in the management of the watersheds 


1 
common in their areas and oversee the utilization of water resources and conduct resource 
2 
accounting to ascertain the biophysical and economic viability of the watersheds. 
3 
The Co-Management Board shall be composed of: 
4 
1. Concerned LGUs (Provincial, Municipal and Barangay 
5 
whose territorial boundaries and jurisdiction includes the 
6 
Watershed Supporting the NIS. 
7 
2. Water Districts or Water Utility Firms operating and 
8 
using the water that directly comes from the watershed 
9 
thm the river systems. 
10 
3. DENR-FMB 
11 
4. DA- NIA 
12 
5. Local 
Stakeholders-Water 
consumers 
and 
13 
concessionaires 
14 
6. NGO-PO- existing and operating within the area 
15 
7. Industrial Users 
16 
8. Academe 
17· 
18 
CHAPTER III 
19 
FUNDING SOURCE 
20 
21 
SECTION 11. Funding Allocation- Upon the enactment of this Act, the amount needed 
22 
to implement the conservation, protection and rehabilitation measures shall be taken from 
23 
the budget of Department of Environment and Natural Resources (DENR) and the 
24 
Department of Agriculture (DA) and shall be equivalent to no less than 5% of the armual 
25 
appropriation of each Department. 
26 
SECTION 12. Creation of Watershed Supporting the National Irrigation System 
27 
Fund- In order to cover the expenses and cost o(supporting the efforts to conserve, protect 
28 
and rehabilitate the Watersheds Supporting the National Irrigation Systems, the yearly 
29 
appropriation of 5% coming from the DENR and the DA budget shall be immediately set 
30 
aside and place in a Special Fund which will be called Watersheds Supporting The 
31 
National Irrigation Systems Special Fund (WSNIS-Fund) 
32 
SECTION 13. Management and control of the WSNIS Special Fund-The Watershed 
33 
Supporting the National Irrigation System Council shall be in charge of the management, 
34 
control and disposition of all funds for the purpose of financing projects for the 
35 
conservation, protection and rehabilitation of the watersheds supporting the national 
36 
irrigation systems. 
37 
SECTION 14. Additional Funds- Additional funds are hereby authorized to be added to 
38 
the special fund to augment the funding requirements to fully implement the conservation, 
39 
protection and rehabilitation measures for the watersheds. Sources of funding shall include 
40 
thefollowing: 
41 
1. Collection of five (5) centavos for every peso being paid as irrigation fees. 
42 
2. Collection of five (5) centavos for every cubic meter of water based on the actual 
43 
billing and collection from the local waterworks utilities that are using portion of 
44 
the water for household use. 
45 
3. Collections of five (5) centavos for every kilowatt hour produce by local hydro 
46 
electric cooperatives or concessionaires. 


I 
4. Proceeds from local or foreign grants, donations, endowments, solicitations and all 
2 
forms of contributions. 
3 
SECTION 15. Compensation of Host Communities- Ancestral/indigenous peoples' 
4 
communities and other host communities living within or on the periphery of the 
5 
watersheds and found to be directly protecting the watersheds shall be compensated out of 
6 
the watershed fees or from any income derive from watershed resources or out of the use 
7 
of water from the watershed. The compensation shall be determined by the Provincial and 
8 
Municipal Co-Management Board. 
9 
SECTION 16. Exemption from taxes- All additional funds accruing to the WSNIS 
10 
Special Fund shall be exempted from income taxes, charges and fees and all other taxes 
II 
that may be imposed by the National Government or the Local Government where the 
12 
income was derive. 
13 
All income derive as payments for value of the water resources coming from the 
14 
Watersheds supporting the National Irrigation System shall be utilized solely and directly 
15 
for the conservation, protection and rehabilitation of all the WS-NIS. 
16 
CHAPTER IV 
17 
GENERAL PROVISIONS 
18 
SECTION 17. Prohibitions: In line with the provision of Section 4 of the Constitution, 
19 
whereby the specific limits of forestlands shall be determine by law, marking clearly their 
20 
boundaries on the ground, thereafter, such forestland shall be conserved and may not be 
21 
increased nor diminished except by law. The following acts shall be prohibited: 
22 
9. Watershed as an integral part of established forest 
23 
reserves shall not be subjected to disestablishment 
24 
proceedings pursuant to the provision of Section 7 of the 
25 
National Integrated Protected Areas Act or R.A. 7586. 
26 
10. Watersheds supporting the National Irrigation Systems 
27 
shall not be subjected to a Protected Area Suitability 
28 
Assessment (PASA) by the PA WB, to determine their 
29 
suitability or non-suitability for preservation as a 
30' 
protected area. Rather, watersheds supporting the 
31 
National Irrigation System if found to be degraded shall 
32 
be maintained, protected and rehabilitated and restore it 
33 
to its former growth and vegetation. 
34 
I!. The inclusion of Watersheds supporting the National 
35 
Irrigation System according to the appropriate categories 
36 
as protected areas under the NIPAS framework shall no 
37 
longer apply. 
38 
12. Multiple uses of watershed resources shall be strictly 
39 
prohibited. The water resources which are the inherent 
40 
contribution of watershed must be conserved, protected 
41 
and enhanced to produce its optimum capacity. 
42 SECTION 18. Diminution of Watershed Areas- There shall be no diminution of 
43 Watersheds Supporting the National Irrigation System. The determination of Congress 
44 pursuant to the provisions of Sec. 4, Chapter 12 of the Constitution, of the specific limits of 
45 forest lands shall be maintained and protected when it comes to all proclaimed watershed 
46 and WS-NIS. All attempts to re-classifY and remove portion of watershed area to be 
47 converted to other uses shall not be allowed. 


1 SECTION 19. Disposition of Watershed Areas- The following activities are considered 
2 environmentally critical projects and activities which are detrimental to the integrity of the 
3 water resources and hydrological balance of the Watersheds supporting the National 
4 Irrigation Systems and may bring irreversible damage to the watershed's water bearing 
5 capacity, and therefore shall not be allowed and strictly prohibited: 
6 
1. All forms of mining operation. 
7 
2. Granting of Mineral, Production Sharing Agreements (MPSA) or 
8 
Financial or Technical Assistance Agreement FT AA. 
9 
3. Granting of mining permits or licenses, for extraction of minerals and 
10 
Quarry Permits for the extraction and utilization of quarry resources. 
11 
4. All forms of logging operations. 
12 
5. Kaingin type of Agriculture. 
13 
6. Any form of human settlements except IP community. 
14 . 
7. Harvesting of trees for charcoal making. 
15 
8. Unlawful Occupation or encroachment or destruction of watershed 
16 
SECTION 20. Penalties - Any person who knowingly or willfully violates the provision 
17 
of this Act shall be punished by imprisonment of no less than one (1) year, to not more 
18 
than three (3 )years or a fine of no less than five hundred thousand (500,000) pesos or 
19 
both, at the discretion of the court. For tenured migrants, and settlers living inside the 
20 
watershed that unknowingly violate the provisions ofthis Act; they shall be subjected to a 
21 
month of rigid training and capability development in lieu of fines and imprisonment. 
22 
Repeat of violations shall be dealt with fines or imprisonment and ejectment. 
23 
SECTION 21. Suppletory Application of Existing Legislation.- The provision of 
24 
Presidential Decree No. 705 (Revised Forestry Code); Republic Act 7586 (NIP AS Act); 
25 
Com. Act No. 141 [1936]; Phil. Clean Water Act; Water Code of the Philippines; 
26 
Executive Order No. 192 Series of 1987; Executive Order 224 Series of 1987; Executive 
27 
Order No. 510 Series of 2006; and other laws not inconsistent with this Act shall have 
28 
suppletory effect. 
29 
SECTION 22. Repealling Clause-.Section 7 and Section 5 (a) & (d) ofthe R. A. No. 7586 
30 
(NIPAS ACT); Executive Order No. 224; Section 18 ofR.A. 7942 (Phil. Mining Act of 
31 
1995 and all other laws, decrees, executive orders, rules and regulations, issuances or parts 
32 
thereof inconsistent with this Act are hereby repealed or amended accordingly. 
33 
SECTION 23. Separability Clause- If for any reason, any section or provision of this Act 
34 
is declared null and void, no other section, provision, or part thereof shall be affected and 
35 
the same shall remain in full force and effect. 
36 
SECTION 24. Effectivity Clanse- This Act shall take effect immediately after publication 
37 
in at least two (2) national newspaper of general circulation. 
38 
Approved. 
39