EIGHTEENTH CONGRESS OF THE 
REPUBLIC OF THE PHILIPPINES 
First Regular Session
S,E N A T  E_
s. No. 
9 ^ 2
lipcaaic 
o( :ijr fef crrtarp
'If 
HUG 20 P2 ■-46
RECEIVcDbV;
Introduced by Senator Grace Poe
AN ACT
FOR 
THE 
PROTECTION, 
CONSERVATION 
AND 
REHABILITATION 
OF 
WATERSHEDS SUPPORTING THE NATIONAL IRRIGATION SYSTEM (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 yields that would 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-offs from forests and other watersheds that can no longer 
be contained by the river systems. The damages wrought by the rampaging waters to 
agriculture and livelihood are immeasurable and what is worrisome is the occurrence of 
floods every year without letup. The changing weather patterns are 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 indirect effects of global 
warming, there are man-made actions that are directly contributory to the devastations 
brought about by flooding, e.g., man's insensitivity to his environment, 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 targe scale transformation o f the original 
vegetation o f the country's forest to non-forestry purposes, coupled


with inappropriate land use practices, have in effect disrupted the 
hydrological conditions o f watersheds. These have brought about 
to some extent, Hash floods and prolonged drought. Other adverse 
consequences are accelerated soil erosion, sHtation o f water bodies 
and reservoirs, and poor water quality. Sedimentation has likewise 
reduced the storage capacity o f the country's major reservoirs. 
These situations caused considerable reduction in the productivity 
o f forests, agricultural lands and fisheries and decreased returns 
from 
major 
investments 
in 
domestic, 
hydroelectric power 
generation and irrigation systems. "(Occasional Paper prepared by 
FMB-Watershed Division)
Along with this, the Philippine MediumTerm Development Plan (MTDP 2004- 
2010) indicates that major watersheds o f the country are in a state o f severe 
degradation, which has resulted in reduction o f capacity to supply water for Irrigation, 
industrial and domestic uses and vita! 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 that for many years have not 
been controlled or necessary safeguards were not put in place.
The continuing 
migrations of the 
lowlanders to the 
uplands and the 
encroachment in watershed forest reserves have remained unabated. These settlers 
having no viable economic opportunities in the lowlands have become dependent on 
forest resources when they settled in the uplands. The "kaingin"ox the slash-and-burn 
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 of forestlands 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 population of the country or roughly 
25% are now living 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 extraction, forest concessions, logging and other 
destructive activities that it cannot control.
Right now, the Philippines has 143 Watersheds supporting 165 components of 
the National Irrigation System with a total area of about 4,318,172 million hectares.


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 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 they have 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 activities that are 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 a large land 
resource to produce our total rice requirement. The Philippines has 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 rice fields.1 But 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 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 feed the rice fields. 
Another reason is the consistent irritation between the hydroelectric 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 economic development.
Philippine Rice Industry: Facts and Figures


The former status of watersheds in the Philippines was characterized by 
abundant rainforest which reached an estimated 17 million hectares in 1934.2 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 had 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 hectare3 
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 affected and the agricultural communities that bore the brunt of the devastations.
Out of the estimated 30 million hectares of land area of the Philippines, 
15,805,325 million hectares were classified as forestland and 14.194,675 million 
hectares were declared alienable and disposable and were subjected to private 
ownership. Of the 15.805,325 million hectares classified as forestland, only 3,270.146 
million hectares were declared as Established Forest Reserves. Out of this, only 
1.561,128 million hectares have been proclaimed as watershed 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 or 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. Most of these areas 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 Phi! forestry Statistics):
Section 4. The Congress shaii, as soon as possibie 
determine by iaw the specific iimits o f forest iands 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 iaw. 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 resources. 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 that have 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 System. 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.


EIGHTEENTH CONGRESS OF THE 
REPUBLIC OF THE PHILIPPINES 
First Regular Session
)
S E N A T E
s. No. 942
•ttict o( tbr iircrrtar}*
*19 AUG 20 P2’47
RECEIVlOBV.
Introduced by Senator Grace Poe
AN ACT
FOR 
THE 
PROTECTION, 
CONSERVATION 
AND 
REHABILITATION 
OF 
WATERSHEDS SUPPORTING THE NATIONAL IRRIGATION SYSTEM (NIS) TO 
ENSURE 
CONTINUOUS 
SUPPLY 
OF 
WATER 
FOR 
AGRICULTURAL 
PRODUCTION AND SELF-SUFFICIENCY IN FOOD AND PROVIDING 
FUNDS 
FOR THE PURPOSE
Be it enacted by the Senate and House o f Representatives o f the Philippines in 
Congress assembled.
1 
CHAPTER I
2 
Section 1. Title. -  The Act shall be known as the "Protection o f Watersheds for
3 
Irrigation Act".
4 
Sec 2. Declaration o f Policy. -  The State affirms its policy for National Patrimony
5 
as embodied in Article XII Section 1 and 2 that all natural resources are owned by the
6 
State and its peoples and in consonance with Section 4 of the of the Constitution that
7 
provides that Congress shall, as soon as possible determine by law the specific limits of
8 
forest lands and national parks, marking clearly their boundaries on the ground.
9 
Thereafter, such forest lands and national parks shall be conserved and may not be
10 
increased nor diminished, except by law.
11 
Further, the State recognizes in Sec. 12 of RA 8435 (AFMA) that all watersheds
12 
that are sources of water for existing and potential irrigable areas and recharge areas of
13 
major aquifers identified by the Department of Agriculture and the Department of
14 
Environment and Natural resources shall be preserved as such at all times.


1 
As such, the watershed being the basic forestland management unit that plays
2 
an important role in sustaining the country's life support system, the State hereby
3 
adopts an Act for the Protection, Conservation and Rehabilitation of Watersheds
4 
Supporting the National Irrigation System.
5 
Further, the State recognizes the need to protect, conserve and provide the
6 
funding thereof for these watershed areas that are considered environmentally critical
7 
areas, to guarantee a continuous supply of water for irrigation purposes and for other
8 
functions to ensure food production.
9 
Also, the State shall adopt rehabilitation and development measures to preserve
10 
and restore these areas in their original status as much as possible and shall prohibit
11 
environmentally critical projects and practices and all other activities that are
12 
inconsistent or shall endanger the environmental stability and hydrological integrity of
13 
these watersheds areas that can cause disruption of their productive conditions.
14 
Sec 3. Coverage. — This Act shall cover all identified watersheds supporting the
15 
National Irrigation System (NIS) and portions of classified forest lands which have
16 
neither been proclaimed, designated nor set aside, pursuant of a law, presidential
17 
proclamation, decree or executive order and all other watershed areas that are
18 
supporting water base infrastructure that may be proclaimed before and after the
19 
passage of this Act. The identified watersheds supporting the National Irrigation System
20 
that form part of the established forest reserves and/or established timberland, shall
21 
not be subjected to disestablishment proceeding pursuant to the provision of Section 7
22 
of the NIPAS ACT or R.A. 7586.
23 
Sec 4. Basic Policies. -  The Philippine Strategy for Sustainable Development
24 
stresses the need to achieve economic growth without degrading environmental quality
25 
and despoiling natural resources. The State hereby adopts the policies to ensure the
26 
protection, conservation and rehabilitation of watersheds supporting the National
27 
Irrigation Systems environmentally critical areas and stop the incessant denudation of
28 
watershed, indiscriminate use of forest resources, degradation of the hydrological
29 
balance thru logging and mining and other activities that can lead to irreversible


1 
damage to the environment that in the end will affect the socio-political and economic
2 
lives of every Filipino.
3 
(a) The State shall protect, conserve and rehabilitate all the Watersheds
4 
Supporting the National Irrigation System to ensure continuous supply of
5 
water for irrigation to sustain food production.
6 
(b) The State shall recognize the rights of Indigenous Cultural Communities to
7 
their ancestral lands to ensure their economic, social, and cultural well-
8 
being in the event that such lands are inside the Watersheds Supporting
9 
National Irrigation System.
10 
(c) The State shall protect the Indigenous Peoples occupying the areas inside
11 
the Watersheds Supporting the National Irrigation System even in the
12 
absence of proof that such areas are parts of their ancestral domain.
13 
(d) The State shall respect and protect the rights of rural women, whose
14 
productive and reproductive roles are integral to household and national
15 
food security, and whose status arising from prevailing gender inequalities
16 
add to their vulnerability to impacts of climate change, calamities and
17 
disasters, and non-protection of their sources of subsistence such as
18 
watersheds.
19 
(e) The State shall prohibit the encroachment of settlers/emigrants, and
20 
loggers, to prevent the cutting of trees and denudation of the forest covers
21 
that would endanger the hydrological balance of the watersheds and shall
22 
permanently ban kaingin making or the slash and burn method of farming.
23 
(f) 
The State shall prohibit all kinds of mining operations and environmentally
24 
critical projects within the Watersheds Supporting the National Irrigation
25 
System to prevent the destruction of headwaters, natural waterways and
26 
aquifers and to preserve the integrity of the water resources.
27 
(g) The State shall be guided by the principle that all Filipinos own all the
28 
natural resources and these are part of their heritage. As owners of the
29 
national patrimony, everyone has a social responsibility to protect, conserve
30 
and develop it for the benefit of all and the generations to come.


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(h) The State shall institute measures for the creation of a National 
Comprehensive Watershed Management or an Integrated Watershed 
Management Plan to ensure the development of a sustainable management 
plan that can be adapted to all the Watersheds Supporting the National 
Irrigation System.
(i) 
The State shall 
ensure that watershed as an ecosystem and a basic 
planning and watershed management unit shall be protected, conserved 
and developed in a holistic, scientific, rights-based, technology-based, 
community-based and collaborative manner for the highest and widest 
public benefit and based on the inherent productive capacity and 
sustainable use of these resources for the present and future generations.
(j) 
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 therefrom, 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 people's 
resilience to address the effects of climate change.
Sec 5. Definition o f Terms. -
(a) Ancestral domain -  area generally belonging to indigenous cultural 
communities/indigenous peoples (ICCs/IPs) comprising land, inland waters, 
coastal areas occupied or possessed by ICCs/IPs, by themselves or through 
their ancestors, 
communally or 
individually since 
time 
immemorial, 
continuously through the present except when interrupted by war, force 
majeure, deceit, stealth, as a consequence of government projects or any 
other voluntary 
dealings 
entered 
into 
by government and 
private 
individuals/corporations, which are necessary to ensure their economic, 
social, and cultural welfare. (RA 8371-IPRA)
(b) Ancestral land -  refers to all lands exclusively and actually possessed, 
occupied, or utilized by indigenous cultural communities by themselves or 
through their ancestors in accordance with their customs and traditions


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since time immemorial and as may be defined and delineated by law. (RA 
7942-Phil. Mining Act.)
(c) Communal Irrigation System (CIS) is an irrigation system that is managed by 
a bona fide Irrigators Association.
(d) Conservation -  Protection of plant and animal habitats including the 
management of renewable natural resources with the objective of sustaining 
its productivity in perpetuity while providing for human use compatible with 
sustainability of the resource.
(e) Critical Watershed -  A drainage area of a river system supporting existing 
and proposed hydroelectric power, irrigation works or existing water facilities 
needing immediate protection and rehabilitation to minimize erosion and 
improve water yield.
(f) Encroachment -  The act or action of using forest land contrary to the 
provisions provided for in forestry laws and regulations with regard to forest 
land uses.
(g) Environmentally Critical Areas - Area delineated as environmentally sensitive 
such that significant environmental impact are expected if certain types of 
proposed projects or programs are located, developed or implemented in it.
(h) Environmentally critical project -  Project or program that has high potential 
for significant negative environmental impact.
(i) 
Forest Degradation -  Changes within the forest whether natural or human- 
induced that negatively affect the structure or function of the stand or site, 
and thereby lower the capacity to supply products and/or services resulting 
to a degraded forest.
(j) 
Forest Land -  Includes public forest, permanent forest or forest reserves, 
and forest reservations.
(k) Forest Reserves or Permanent Forest -  Refer to those lands of the public 
domain that have been the subject of the present system of classification 
and declared to be needed for forest purposes (PD 1559); Forest land which


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has been reserved by the President of the Philippines for any specific 
purpose or purposes.
(l) 
Forest Resources -  Includes soil and all elements found on it, above and 
below the ground in an area classified as forest land.
(m) Headwaters - The upper reaches of a stream or river.
(n) Integrated Watershed Management -The process of guiding and organizing 
land and other resource use in a watershed to provide desired goods and 
services without affecting adversely soil and water resources (Brooks et.al. 
1990). It involves multiple natural resources and requires understanding of 
the relationship among land-use, soil, water and linkages between uplands 
and downstream areas
(o) Irrigable Lands - refers to lands which display marked characteristics 
justifying the operation of an irrigation system.
(p) Irrigated Lands - refers to lands services by natural irrigation or irrigation 
facilities.
(q) Irrigation System -  refers to a system of irrigation facilities covering 
contiguous areas
(r) Irrigation water -  Portion of a run off that is being used in irrigation. The 
intentional application of water to the soil usually for the purpose of crop 
production.
(s) Kaingin making -  A farming system based on shifting, or slash and burn 
clearing of forest for the planting of agricultural and agro-forestry crops.
(t) Mining operation -  means mining activities involving exploration, feasibility, 
development, utilization and processing. (RA 7942)
(u) National Irrigation System (NIS) - refers to a major irrigation system 
managed by the National Irrigation Administration.
(v) Public forest - the mass of lands of the public domain which has not been 
subject to the present system of classification for the determination of which 
lands are needed for forest purposes.


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(w) Water Resources -  Refers to the quality and quantity of water produced 
naturally as one of the earth's major resources.
(x) Watershed - A land area drained by a stream or fixed body of water and its 
tributaries having a common outlet for surface-runoff. "Areas that have been 
identified and evaluated to provide critical and vital natural, ecological, 
environmental and physical beneficial services such as water, biodiversity, 
energy, irrigation, social and cultural, among others to a specific area or 
community and whose existing biophysical condition demands immediate 
rehabilitation, protection and management to prevent its further denudation, 
deterioration and exploitation" (as contained in the definition under HB 
4382- NLUA Bill).
(y) Watershed Management - The process of guiding and organizing land and 
other resource uses in a watershed to provide desired goods and services 
without adversely affecting soil and water resources.
(z) Watershed reservation -  a forest land reservation established to protect or 
improve the conditions of water yield thereof or reduce sedimentation.
Sec 6. Scope. — This Act shall cover all 143 Identified Watersheds supporting the 165 
components of the National Irrigation System of the National Irrigation Administration, 
to wit:
CAR
1. Chico River Watershed, supporting the Lower Chico and Upper Chico River 
Irrigation System, located in the provinces of Mt. Province, Ifugao, Kalinga and 
Apayao, covering the municipalities of Bauko, Sabangan, Bontoc, Sagada, 
Sandangan, Barlig, Tinoc, Hugdungan, Tanudan, Lubuagan, Tinglayan, Pinukpuk, 
Tabuk, Balbalan, Pasil and Coner with an area of 330,000 hectares, more or 
less.
2. Mallig River Watersheds supporting the Mallig River Irrigation System, 
located in the provinces of Kalinga and Mt. Province, covering the municipalities 
of Tanudan, Tabuk, and Paracelis, with an area of 45,580 hectares, more or 
less
7


1 
3. Abulog River W atershed 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
4 
hectares, more or less.
5 
4. Manucotae River W atershed, supporting the Pamplona River Irrigation
6 
System, located in the province of Cagayan and Apayao, covering the
7 
municipalities of Pamplona and Luna, with an area of 1,920 hectares, more or
8 
less.
9 
REGION 1
10 
5. Bulu River W atershed supporting the Bulu River Irrigation System, located in
11 
the province of Ilocos Norte, covering the municipality of Bangui, with an area of
12 
17,200 hectares, more or less.
13 
6. Laoag River Basin, Magalis-Papa River W atershed and Cura River
14 
Watershed- supporting Bonga Pump No. 1 and 2 and 3, Dingras and Cura RIS,
15 
located in the province of Ilocos Norte, covering the municipalities of Sarrat, San
16 
Nicolas, and Laoag City, Espiritu, Nueva Era and Pinili, with an area of 69,700
17 
hectares, more or less.
18 
7. V intar River W atershed supporting the Laoag-Vintar RIS and NMC Pasuquin
19 
RIS, located in the province of Ilocos Norte, covering the municipalities of Vintar,
20 
Burgos and Bangui, with an area of 29,000 hectares, more or less.
21 
8. Sta Maria River Watershed supporting the Sta Maria-Burgos RIS, located in
22 
the province of Ilocos Sur, covering the municipalities of Burgos, Santiago,
23 
Banyuyom, Lidlidda and San Emilio, with an area of 16,400 hectares, more or
24 
less.
25 
9. Buaya River W atershed supporting the Buaya RIS, located in the province of
26 
Ilocos Sur, covering the municipalities of Candon, Sta Lucia, Gregorio del Pilar,
27 
Sta Lucia, Salcedo, Sta Cruz, Suyo and Sigay., with an area of 16,800
28 
hectares, more or less.


1 
lO.Amburayan River Watershed and Chico-Paduquit River Watershed
2 
supporting Amburayan and Tagudin RIS, respectively, located in the provinces of
3 
Ilocos, Sur, La Union and Benguet, covering the municipalities of Tagudin,
4 
Sugpon, Sudipen, Atok, Kibungan, Bakun, Tublay, Kapangan, Bugias, Suyo,
5 
Alilem, Sigay, Cervantes and Bakun with an area of 99,300 hectares, more or
6 
less.
7 
1 l.Aringay River Watershed- supporting Masalip RIS, located in the provinces of
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La Union and Benguet, covering the municipality of Aringay, Tubao, Pugo,
9 
Sablan, Tuba and Baguio City, with an area of 27,300 hectares, more or less.
10 
12.Bued River Watershed- supporting the San Fabian RIS, located in the
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province of Pangasinan, La Union and Benguet, covering the municipalities of
12 
San Fabian, San Jacinto, Pozorrubio, Sison, Pugo, Rosario, Tuba and Itogon with
13 
an area of 29,700 hectares, more or less.
14 
IS.Dumuloc River Watershed- supporting the Dumuloc RIS, located in the
15 
provinces of Pangasinan and Zambales, covering the municipalities of Bugallon
16 
and Sta Cruz, with an area of 8,200 hectares, more or less.
17 
14.Agno River Watershed- supporting the Agno RIS, located in the provinces of
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Benguet, Pangasinan and Nueva Viscaya, covering the municipalities of Buguias,
19 
Kabayan, Bokol, La Trinidad, Itogon, Baguio City, Sta Maria, San Nicolas, Sto
20 
Tomas, Asingan, Tayug , San Manuel and Kayapa, with an area of 228,400
21 
hectares more or less.
22 
15.Ambayoan River Watershed- supporting the Ambayoan RIS and ADRIS
23 
Extension, located in the provinces of Pangasinan, Nueva Viscaya and Benguet,
24 
covering the municipalities of San Nicolas, Sta Fe, Kayapa and Itogon, with an
25 
area of 5, 900 hectares, more or less.
26 
16.Dipalo River W atershed- supporting the Dipalo RIS, located in the provinces
27 
of Pangasinan and Nueva Ecija, covering the municipalities of 
Umingan and
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Lupao, with an area of 4,200 hectares, more or less.


1 
17.Agno-Banawan River Watershed- supporting the Lower Agno-Totonogen
2 
RIS, located in the province of Pangasinan with an area of more or less.
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18.Agno-Sinucalan-Tuboy Watershed- supporting the Agno-Sinucalan RIS,
4 
located in the provinces of Pangasinan and Benguet, covering the municipalities
5 
of San Manuel and Itogon with an area of 152,350 hectares, more or less.
6 
REGION 2
7 
19.Magat River Watershed- supporting the Magat River Irrigation System
8 
(MARIS) located in the provinces of Nueva Viscaya, Isabela and Ifugao, covering
9 
the municipalities of Dupax del Norte, Dupax del Sur, Aritao, Bayombong,
10 
Solano, Bagabag, Diac, Ramon, Naguilian, Hagan, Gamu, Lagawe and Mayayao
11 
with an area of 412,300 hectares, more or less.
12 
20.Baua River Watershed (Convergence WFR)- supporting the Baua RIS,
13 
located in the provinces of Cagayan, covering the municipality of Gonzaga, with
14 
an area of 5,000 hectares, more or less.
15 
21.Dummun River Watershed- supporting the Dummon RIS, located in the
16 
province of Cagayan, covering the municipality of Capissayan, with an area of
17 
20,600 hectares, more or less..
18 
22.Pared River Watershed- supporting Baggao RIS located in the province of
19 
Cagayan, covering the municipality of Baggao and Pehablanca, with an area of
20 
20,950 hectares, more or less.
21 
23.Zinundungan River Watershed- supporting Zinundungan RIS, located in the
22 
provice of Cagayan, covering the municipality of Sto Nino, with an area of
23 
21,500 hectares, more or less.
24 
24.Pinacanauan de Tuguegarao River Watershed- supporting Pinacanauan
25 
RIS, located in the province of Cagayan, covering the municipalities of
26 
Pehablanca and Maconancon, with an area of 12,920 hectares, more or less.
27 
25.Pinacanauan de San Pablo Watershed- supporting the San Pablo-Cabagan
28 
RIS, located in the province of Isabela, covering the municipalities of San Pablo
29 
and Maconancon, with an area of 13,450 hectares, more or less.
10


1 
26.Pinacanauan de Tumauini River Watershed- supporting the Tumauini RIS,
2 
located in the province of Isabela, covering the municipalities of Tumauini,
3 
Cabagan, Divilacan, and Maconancon, with an area of 17, 630 hectares, more
4 
or less.
5 
REGION 3
6 
27.Tarlac River Watershed and Odonell Watershed- supporting Tarlac,
7 
Odonell and San Miguel RIS, located in the provinces of Tarlac and Zambales,
8 
covering the municipalities of Capas, Bamban, Tarlac City and Botolan, with an
9 
area of 54,850 hectares, more or less.
10 
28. Camiling River Watershed- supporting Camiling RIS, located in the provinces
11 
of Tarlac and Zambales, covering the municipalities of Mayantoc, Candelaria and
12 
Masinloc with an area of 8,580 hectares more or less.
13 
29. Upper Pampanga River Watershed and Coronnel River Watershed -
14 
supporting UPRIS-II and UPRIS III- (Aulo Watershed) located in the province of
15 
Nueva Edja, covering the municipalities of Pantabangan, Caranglan, Palayan City
16 
and Bongabon with an area of more or less.
17 
30.Caulaman River Watershed- supporting the Caulaman RIS located in the
18 
provinces of Zambales and Pampanga, covering the municipalities of San
19 
Marcelino, Castillejos, Subic and Floridablanca with an area of 1,800 hectares
20 
more or less.
21 
31.Nayom River Watershed- supporting the Nayom RIS located in the provinces
22 
of Zambales and Pangasinan, covering the municipalities of Sta Cruz, Infanta and
23 
Bugallon with an area of 14,450 hectares, more or less.
24 
32.Cabaluan River Watershed- supporting the Bayto RIS located in the province
25 
of Zambales, covering the municipalities of Sta Cruz and Candelaria with an area
26 
of 11,260 hectares, more or less.
27 
33.Sto Tomas River Watershed- supporting the Sto Tomas RIS located in
28 
Zambales, covering the municipality of San Narciso with an area of 18,100
29 
hectares, more or less.
11


1 
34.Bucao River Watershed- supporting Bucao RIS, located in the province of
2 
Zambales, covering the municipalities of Botolan, Cabangan, San Felipe, Iba and
3 
San Marcelino with an area of 55,320 hectares, more or less.
4 
35.Porac-Gumain River Watershed- supporting the Porac-Gumain RIS (2
5 
Intake), located in the province of Pampanga, covering the municipalities of
6 
Porac and Floridablanca with an area of 22,500 hectares, more or less.
7 
36.Angat-Maasim River Watershed- supporting the Angat-Maasim RIS, located
8 
in the provinces of Bulacan and Pampanga, covering the municipalities of Angat,
9 
Norzagaray, San Ildefonso, San Rafael and San Luis with an area of 61,300
10 
hectares, more or less.
11 
37.Angat-Ipo River Watershed (Convergence WFR)- supporting the Ipo Dam
12 
(MWSS), 
located in the provinces of Bulacan and 
Rizal, covering the
13 
municipalities of Norzagaray, San Jose del Monte, and Rodriguez (Montalban)
14 
with an area of 6,600 hectares, more or less.
15 
38.Pinulot River Watershed- supporting the Colo RIS located in the provinces of
16 
Bataan and Zambales, covering the municipalities of Dinalupihan, Flermosa,
17 
Morong, Olongapo City and Subic with an area of 8,850 hectares, more or less.
18 
39.Dingalan Watershed- supporting th e ----------, located in the province of Aurora,
19 
covering the municipality of Dingalan, with an area of more or less.
20 
REGION 4A
21 
40.Balanac River Watershed- supporting the Balanac RIS located in the province
22 
of Laguna, Quezon covering the municipalities of Magdalena, Majayjay, Lusiana,
23 
and Lucban with an area of 6,600 hectares, more or less.
24 
41.Mabacan River Watershed- supporting the Mabacan RIS, located in the
25 
province of Laguna, with an area of 4,900 hectares, more or less.
26 
42.Llano River Watershed- supporting the Mayor RIS, located in the provinces of
27 
Laguna and Quezon, with an area of 3,300 hectares, more or less.
28 
43. Sta Cruz River watershed- supporting Sta Cruz RIS, located in the province
29 
of Laguna with an area of 8,000 hectares, more or less.
12


1 
44.San Antonio River Watershed- supporting Sta Maria RIS, located in the
2 
provinces of Laguna, Rizal and Quezon, with an area of 1,150 hectares, more
3 
or less.
4 
45.NPC Tailrace and Lewin Creek- supporting the Lumban RIS, located in the
5 
province of Laguna, with an area of 1,350 hectares, more or less.
6 
LAGUNA FLIS - 30,630 hectares, more or less
7 
46.Macabling River Watershed- supporting the Macabling RIS, located in the
8 
province of Laguna, covering the municipality of Cabuyao, with an area of more
9 
or less.
10 
47.San Cristobal River Watershed- supporting Cabuyao East PIS, San Cristobal
11 
RIS and Diezmo RIS, located in the provinces of Laguna and Cavite, covering the
12 
municipalities of Cabuyao, Canlubang, Calamba, Silang and Tagaytay City, with
13 
an area of more or less.
14 
48.San Juan River Watershed- supporting the San Juan RIS, located in the
15 
provinces of Laguna and Batangas, covering the municipalities of Calamba, Sto
16 
Tomas, Tanauan ans Malvar with an area more or less.
17 
CAVITE FLIS - 52,900 hectares, more or less
18 
49.Maragondon River Watershed- supporting the Balayugan A Dam, Balayugan
19 
B Dam, located in the province of Cavite, covering the municipality of Naic, with
20 
an area of more or less.
21 
SO.Caisobo River Watershed- supporting the Culong-Culong 
Dam, located in the
22 
province of Cavite, covering the municipality of Indang, with an area of more or
23 
less.
24 
Sl.Labac-Alemang River Watershed- supporting the Sahing Dam and Bancud
25 
Dam, located in the province of Cavite, covering the municipalities of Naic and
26 
Indang with an area of more or less.
27 
52.Timalam River Watershed- supporting the Tres Cruses Dam, located in the
28 
province of Cavite, covering the municipality of Tanza.
13


1 
53.Canas River Watershed- supporting the Bayan Dam, Plucena Dam, Matanda A
2 
Dam, and Matanda B Dam, all located in the province of Cavite, covering the
3 
municipalities of General Trias, and Tanza.
4 
54.Ylang-YIang River Watershed- supporting the Pasong Kastila Dam, Butas
5 
Marcelo Dam, San Agustin Dam and Butas Navarro Dam, all located in the
6 
province of Cavite, covering the municipalities of Imus, General Trias, and
7 
Dasmarinas.
8 
55.Lasong Camachile River Watershed- supporting the Butas Lawang Bato
9 
Dam, located in the province of Cavite, covering the municipality of General
10 
Trias.
11 
56.Im us River Watershed- supporting the Julian Dam, Makuling Dam, Luksuhin
12 
Dam and Embarcadero Dam, all located in the province of Cavite, covering the
13 
municipality of Imus, Dasmarinas.
14 
57.Zapote River Watershed- supporting the Molino Dam located in the province
15 
of Cavite, covering the municipality of Bacoor.
16 
58.Palico River Watershed- supporting the Palico RIS, located in the province of
17 
Batangas, covering the municipalities of Tuy and Nasugbu, with an area of
18 
11,800 hectares, more less.
19 
59.Lagnas River Watershed- supporting the Lagnas RIS, located in the province
20 
of Quezon, covering the municipality of Candelaria, with an area of 1,860
21 
hectares, more or less.
22 
60.Hanagdong River Watershed- supporting the Hanagdong RIS, located in the
23 
province of Quezon, covering the municipalities of Candelaria and Sariaya, with
24 
an area of 1,360 hectares, more or less.
25 
61.Dumacao River Watershed- supporting Dumacao RIS, located in the province
26 
of Quezon, covering the municipality of Tayabas, with an area of 8,500
27 
hectares, more or less.
14


1 
62.Agos River Watershed- supporting Agos RIS, located in the province of
2 
Quezon and Rizal,covering the municipalities of General Nakar, Infanta, Real,
3 
Tanay, and Teresa, with an area of 91,260 hectares, more or less.
4 
63.Marikina River Watershed (Convergence WFR)- 
Supporting the Wawa
5 
Dam, located in the province of Rizal, covering the municipalities of Tanay,
6 
Montalban, Antipolo, Baras and Teresa, with an area of 18,966 hectares, more
7 
or less.
8 
REGION 4B
9 
64.Bansud River Watershed -  supporting the Bansud RIS, located in the
10 
province of Minddoro Oriental, covering the municipalities of Bongabong and
11 
Pinamalayan, with an area of 7,000 hectares, more or less.
12 
65.Baco-Bocayao River W atershed- supporting the Baco RIS, located in the
13 
province of Mindoro Orienrtal and Mindoro Occidental, covering the municipalities
14 
of Baco, Naujan, San Teodoro, Sablayan and Sta Cruz, with an area of 26,000
15 
hectares, more or less
16 
66.Pula River Watershed- supporting the Pulas RIS, located in Mindoro Oriental,
17 
covering the municipality of Pinamalayan, with an area of 12,970 hectares,
18 
more or less.
19 
67.Mag-asawang Tubig-Mapalo Rivers Watershed- supporting Mag-asawang
20 
Tubig RIS, located in the province of Mindoro Oriental and Mindoro Occidental,
21 
covering the municipalities Naujan and Sablayan, with an area of 19,565
22 
hectares, more or less
23 
68.Pagbahan River Watershed- supporting the Pagbahan RIS, located in the
24 
province of Mindor Oriental and Mindoro Occidental, covering the municipalities
25 
of San Teodoro, Puerto Galera, Mamburao and Sta Cruz. With an area of 23,380
26 
hectares, more or less.
27 
69.Amnay-Patrick River Watershed- supporting Amnay-Patrick RIS, located in
28 
the province of Mindor Occidental and 
Mindoro Oriental, covering the
15


1 
municipalities of Sta Cruz, Sablayan, Baco and San Teodoro, with an area of
2 
20,750 hectares, more or less.
3 
70.Mongpong River Watershed- supporting the Mongpong RIS, located in the
4 
province of Mindoro Occidental, covering the municipality of Sablayan, with an
5 
area of 22,300 hectares, more or less.
6 
Tl.Cagaray River Watershed- supporting the Cagaray RIS, located in the
7 
province of Mindoro Oriental and Mindoro Occidental, covering the municipalities
8 
of Mansalay, Bulalacao and San Jose with an area of 12,900 hectares, more or
9 
less.
10 
72.Lumintao River Watershed- suppoting the Lumintao RIS, located in the
11 
province of Mindoro Occidental, covering the municipality of Sablayan, with an
12 
area of 38,600 hectares, more or less.
13 
73.Malasgao River Watershed- supporting the Malasgao RIS, located in the
14 
provinde of Palawan, covering the municipalities of Quezon and Aborlan, with an
15 
area of 6,360 hectares, more or less.
16 
REGION 5
17 
74.Ponso River Watershed- supporting the Hibiga RIS, located in the province of
18 
Albay, covering the municipalities of Pulangui and Oas, with an area of 10,900
19 
hectares, more or less.
20 
75.Basay River Watershed- supporting the Mahaba RIS, located in the province
21 
of Albay, covering the municipality of Liago and Oas, with an area o f _____
22 
hectares more or less.
23 
76.Nasisi River Watershed- supporting the Nasisi RIS, located in the province of
24 
Albay, covering the municipalities of Ligao and Guinobatan, with an area of
25 
______ hectares more or less.
26 
77.Bublusan Watershed- supporting the Ogsong RIS, located in the province of
27 
Albay, covering the municipalities of Guinobatan and Camalig, with an area of
28 
_____hectares more or less.
16


2
3
4
5
6
7
8 
9
10
11
12
13
14
15
16
17
18
19
20 
21 
22
23
24
25
26
27
28
1
78. Buhi-Iriga River Watershed- supporting the Buhi-Lalo and Lake Buhi RIS, 
located in the province of Camarines Sur and Albay, covering the municipalities 
of Buhi, Nabua, Iriga City, Tiwi, with an area of 41,350 hectares, more or less.
79. Nabua River Wartershed- supporting the Barit (Rida) RIS, located in the 
province of Camarines Sur, covering the municipalities of Baao, Buhi and Iriga 
City witn an area of 19,500 hectares, more or less.
SO.Daet River Watershed- supporting the Daet RIS, located in the province of 
Camarines Norte, covering the municipalities of Daet, San Vicente, and Basud, 
with an area of 6,320 hectares, more or less.
81 .Talisay River Watershed- supporting the Talisay RIS, located in the province 
of Camarines Norte, covering the municipalities of Daet and San Vicente, with an 
area of 2,820 hectares, more less.
82.Sipocot -Pulantuna Watershed- 
supporting the Libmanan-Cabusao RIS, 
located in the province of Camarines Sur and Camarines Norte covering the 
municipalities of Libmanan, Sipocot, Lupi, Ragay del Gallego, and Daet, with an 
area of 54,000 hectares, more or less.
83. Pill River Watershed- supporting the Pili RIS, located in the province of 
Camarines Sur, covering the municipality of Pili, with an area of 2,680 
hectares, more or less.
84. Tigman River Watershed- supporting the THIRIS Tigman Dam, located in the 
province of Camarines Sur, covering the municipalities of Calabanga and 
Tinambac, with an area of 8,990 hectares, more or less.
85. Hinagyanan River Watershed- supporting the THIRIS Hinagyanan Dam.......
86.Inainigan/Inarihan Watershed- supporting the THIRIS Inarihan Dam-
87.Sabang River Watershed- supporting the San Francisco RIS, located in the 
province of Sorsogon-------------- -----------------------------
17


1 
88.Tubugan River Watershed- supporting the San Ramon RIS, located in the
2 
province of Sorsogon, covering the municipalities of Bulan, Irosin,and Matnog,
3 
with an area of 1,590 hectares, more or less.
4 
REGION 6
5 
89.Tipuluan River Watershed (Convergence WFR) - supporting the Sibalom-
6 
San Jose RIS, located in the province of Antique, covering the municipalities of
7 
Sibalom and San Jose, with an area of 61,600 hectares, more or less.
8 
90.Mambusao River Watershed- supporting the Mambusao RIS, located in the
9 
provcince of Capiz and Akian, covering the municipalities of Sapian, Jamindan,
10 
Mambusao and Altavas, with an area of 31,630 hectares, more or less.
11 
91.Aganan River Watershed (joined to Tigum)- supporting the Aganan RIS,
12 
located in the province of Iloilo, covering the municipalities of Alimodian, and
13 
Maasin with an area of 11,300 hectares, more or less.
14 
92.Barotac Viejo River Watershed- supporting the Barotac-Viejo RIS, located in
15 
the province of Iloilo, covering the municipalities of Barotac Viejo, Lemery and A-
16 
Juy, with an area of 9,150 hectares, more or less.
17 
93.Jalaur River Watershed (Convergence WFR)- supporting the Jalaur RIS,
18 
located in the province of Iloilo, covering the municipalities of Dingle, Pototan,
19 
Janiuay, Passi, Duenas, Calinog, Lambunao, Anilao, Banate and Barotac Viejo,
20 
with an area of 107,700 hectares, more or less.
21 
94.3alaur-Suage River Watershed- supporting the Suage RIS, located in the
22 
province of Iloilo, covering the municipalities of Janiuay, Maasin, Cabatuan, and
23 
Lucena, with an area of 17,480 hectares, more or less.
24 
95.Sibalom River Watershed- Sibalom-Tigbauan RIS, located in the province of
25 
Iloilo, covering the municipalities of Leon, Alimodian and Tigbauan, with an area
26 
of 11,400 hectares, more or less.
27 
96.Tigum River W atershed(joined to Aganan)- supporting the Sta Barbara
28 
RIS, located in the province of Iloili and Antique, covering the municipalities of
18


1 
Cabatuan, Maasin, Janiway, Valderama and San Remigio, with an area of
2 
19,200 hectares, more or less.
3 
97.Bago River Watershed (Convergence WFR)- 
supporting the Bago RIS,
4 
located in the province of Negros Occidental, covering the municipalities of Bago,
5 
Murcia, Talisay, San Carlos and Calatrava, with an area of 62,500 hectares,
6 
more or less.
7 
98.Pagiplan River Watershed- supporting the Pagiplan RIS, located in the
8 
province of Negros Occidental, covering the municipalities of Binalbagan, with an
9 
area of 1,756 hectares, more or less.
10 
99.1bajay River Watershed- supporting the Panukayan RIS, located in the
11 
province of Akian, covering the municipality of Ibajay, with an area of 23,400
12 
hectares, more or less
13 
REGION 7
14 
lOO.Caruod Watershed- supporting the ----------RIS, located in the province of
15 
Bohol, covering the municipalities of Ubay, Mabini and Alicia, with an area of
16 
more or less.------------------------
17 
101. Matutinao Watershed- supporting th e ------- RIS, located in the province of
18 
Cebu, covering the municipality of Badian, Alegria, Malabuyoc, 
Alcoy and
19 
Dalaguete, with an area of more or less.
20 
REGION 8
21 
102. Magon-Bucan River Watershed- supporting the Balire North RIS, located in
22 
the province of Leyte, covering the municipalities of La Paz, Mac Arthur and
23 
Inayupan, with an area of 4,500 hectares, more or less.
24 
103. Bao River W atershed- supporting the Bao RIS, located in the province of
25 
Leyte, covering the municipalities of Ormoc City, Kananga, Capoocan 
and
26 
Cariagara with an area of 5,800 hectares, more or less.
27 
1 04. Binahaan River Watershed- supporting the Binahaan South RIS, Binahaan
28 
North RIS, and Lower Binahaan RIS, located in the province of Leyte, covering
19


1 
the City of Ormoc, Municipalities of Jam, Pastrana and Dagami, Tanauan and
2 
Palo with an area of 21,910 hectares, more or less.
3 
lOS.Bito River Watershed- supporting the Bito RIS, located in the province of
4 
Leyte, covering the municipalities of Inayopan, Abuyog, and Baybay, with an are
5 
of 11,380 hectares, more or less.
6 
106. Daguitan River Watershed- supporting the Daguitan RIS, located in the
7 
province of Leyte, covering the municipalities of Burauen, Albuera, and Dagami
8 
with an area of 4,300 hectares, more or less.
9 
107. Gibuga River Watershed- supporting the Gibuga RIS, located in the province
10 
of Leyte, covering the municipalities of Burauen, Julita, Dulag, La Paz and Sta
11 
Cruz, with an area of 5,400 hectares, more or less.
12 
lOS.Guinarona River Watershed- supporting the Guinarona RIS, located in the
13 
province of Leyte, covering the municipalities of Dagami and Burauen with an
14 
area of 1,450 hectares, more or less.
15 
109. Mainit River Watershed- supporting the Mainit RIS, located in the province of
16 
Leyte, covering the municipalities of Carigara, Jaro, and Alang-alang with an area
17 
of 3,150 hectares, more or less.
18 
110. Pongso River Watershed- supporting the Pongso RIS, located in the province
19 
of Leyte, covering the municipalities of Carigara, Barugo, and Tunga, with an
20 
area of 4,020 hectares, more or less.
21 
111.Palo River W atershed- supporting the Suong-Tibak RIS, located in the
22 
province of Leyte, covering the municipalities of Palo, Jaro, Sta Fe, Alang-alang,
23 
and Tacloban City, with an area of 2,350 hectares, more or less.
24 
112.Salug River Watershed- supporting the Hindang-Hilogos RIS, located in the
25 
province of Leyte, covering the municipalities of Hindang, Hilongos and
26 
Inopacan, with an area of 7,200 hectares, more or less.
27 
REGION 9
20


1 
113. Dipolo River Watershed- supporting the Dipolo Dam (RIS) and Salug RIS,
2 
located in the provinces of Zamboanga del Sur, covering the municipality of
3 
Molave with an area of 67,200 hectares, more or less.
4 
114. Labangan-Pulusan-Lantian-Tiwagan River Watersheds- supporting the
5 
Labangan RIS, located in Zamboanga del Sur, covering the 
municipalities of
6 
Labangan, and Pagadian City with an are of 43,360 hectares, more or less.
7 
115. Sibuguey-Dipili Rivers- supporting the Sibuguey Vallye RIS, located in the
8 
province of Zamboanga del Sur with an area of 21,800 hectares, more or less.
9 
REGION 10
10 
1 16. Manupali River (Convergence WFR)- supporting the Manupali RIS, located
11 
in the province of Bukidnon, covering the municipality o f ---------with an area of
12 
13,850 hectares, more or less.
13 
117. Muleta-Kulaman River Watershed (Convergence WFR)- supporting the
14 
Muleta RIS, located in the Bukidnon, covering the municipality of Pangantukan
15 
and Maramag, with an area of 21,450 hectares, more or less.
16 
118. Roxas Kuya River Watershed- supporting the Roxas Kuya RIS, located in the
17 
province of Bukidnon, covering the municipality of Maramag, with an area of
18 
9,300 hectares, more or less.
19 
119. Dipolo-Maranding River Watrershed- supporting the Maranding RIS, located
20 
in the province of Lanao del Norte, covering the municipalities of Nunungan and
21 
Kapatagan, with an area of 39,350 hectares, more or less.
22 
REGION 11
23 
120. Batutu Watershed- supporting the Batutu RIS, located in the province of
24 
Compostela Valley, covering the municipality of Compostela, with an area of
25 
10,500 hectares, more or less.
26 
121. Libuganon River Watershed- supporting the Libuganon RIS, located in the
27 
province of Davao del Norte and Compostela Valley, covering the municipalities
28 
of Kapalong, Sto Tomas, Asuncion, San Vicente, New Correia, Tagum City,
21


1 
Nabunturan, Moncayo and Montevista, with an area of 74,730 hectares, more
2 
or less.
3 
122.Saug River W atershed- supporting the Saug RIS, located in the province of
4 
Davao del Norte, Compostela Valley, covering the municipalities of Kapalong,
5 
Asuncion and Nabunturan, with an area of 41,100 hectares, more or less.
6 
123.Lasang River Watershed- supporting the Lasang RIS, located in the province
7 
of Davao del Norte, covering the municipalities of Kapalong, Panabo and Davao
8 
City, with an area of 39,450 hectares, more or less.
9 
124. Matanao River Watershed- supporting the Mai RIS, located in the province of
10 
Davao del Sur, covering the municipality of Digos, with an area of 35,400
11 
hectares, more or less.
12 
125. Padada River Watershed- supporting the Padada RIS, located in the province
13 
of Davao del Sur and North Cotabato, covering the municipalities of Digos and
14 
Makilala, with an area of 81,850 hectares, more or less.
15 
126. Sumlog River Watershed- supporting the Lupon RIS, located in the provinces
16 
of Davao Oriental and Davao del Norte, covering the municipalities of Lupon,
17 
Banay-Banay, Mati and Pantukan with an area of 25,540 hectares, more or
18 
less.
19 
127. Buayan-Tinagacan Rivers- supporting the Buayan RIS, located in the
20 
province of Davao del Sur, Sarangani and South Cotabato, covering the
21 
municipalities of Malalag, Sta Maria, Malita, Malungon, Alabel, Polomolok and
22 
General Santos City, with an area of 7,580 hectares, more or less.
23 
REGION 12
24 
128.Kabacan River Watershed-supporting the Kabacan-Pagalungan RIS, located
25 
in the province of North Cotabato, covering the municipalities of Kabacan and
26 
Kidapawan with an area of 74,000 hectares, more or less.
27 
129.Libungan River W ateshed- supporting the Libungan RIS, located in the
28 
province of North Cotabato, covering the municipality of Libungan, with an area
29 
of 51,700 hectares, more or less.
22


1 
130. M'lang River Watershed- supporting the M'lang RIS, located in the province
2 
of North Cotabato, covering the municipalities of M'lang and Makilala with an
3 
area of 20,100 hectares, more or less.
4 
131. Malasila River Watershed- supporting the Malasila RIS, located in the
5 
province of North Cotabato, covering the municipalities of Tuluran and Makilala
6 
with an area of 31,200 hectares, more or less.
7 
132. Allah River Watershed- supporting Allah I RIS and Allah II -Lambayong RIS,
8 
located in the province of South Cotabato, covering the municipalities of T'boli,
9 
Norala and Surallah, with an area of 158,290 hectares, more or less.
10 
133. Banga River Watershed- supporting the Banga RIS, located in the province of
11 
South Cotabato, covering the municipality of Banga, with an area of 28,800
12 
hectares, more or less.
13 
134. Silway River Watershed- supporting the Silway RIS, located in the province of
14 
South Cotabato, covering the municipalities 
of Dadiangas, Polomolok and
15 
Koronadal, with an area of 53,300 hectares, more or less.
16 
135. Paiian River Watershed- supporting the Marbel RIS 1&2, located in the
17 
province of South Cotabato, covering the municipalities of Marbel and Tupi with
18 
an area of 20,675 hectares, more or less.
19 
136. Alip River Watershed- supporting the Alip RIS, located in the province of
20 
Sultan Kudarat, covering the municipalities of Columbio, Lutavan, with an area of
21 
37,950 hectares, more or less.
22 
REGION 13
23 
137. Cabadbaran 
River Watershed (Convergence WFR)- supporting the
24 
Cabadbaran RIS, located in the province of Agusan del Norte, covering the
25 
municipality of Cabadbaran, with an area of 7,350 hectares, more or less.
26 
138.Taguibo River Watershed- supporting Taguibo RIS, located in the province of
27 
Agusan del Norte, covering the municipality of Butuan City and Cabadbaran with
28 
an area of 8,430 hectares, more or less.
23


1 
139. Andanan 
River 
Watershed 
(Convergence 
WFR)- 
supporting 
the
2 
AndananRIS, located in the province of Agusan del Sur, covering the municipality
3 
of Bayugan with an area of 19,200 hectares, more or less.
4 
140. Simulao River Watershed- supporting the Simulao RIS, located in the
5 
provinces of Agusan del Sur and Surigao del Sur, covering the municipalities of
6 
Bunawan, Trento, Bislig and Lingig with an area of 42,900 hectares, more or
7 
less.
8 
141. Caracan River Watershed- supporting the Cantilan RIS, located in the
9 
provinces of Surigao del Sur and Agusan del Norte, covering the municipalities of
10 
Madrid and Jagupit, with an area of 12,180 hectares, more or less.
11 
142.Tago River W atershed- supporting the Tago RIS, located in the province of
12 
Surigao del Sur and Agusan del Sur, covering the municipalities of Tago, Cagwit
13 
and Bayugan with an area of 118,000 hectares, more or less.
14 
ARMM
15 
143. Gata River Watershed- supporting the Rugnan RIS, located in the province of
16 
Lanao del Sur, covering the municipalities of Maguindanao, Lumba-Bayabao, with
17 
an area of 18,500 hectares, more or less.
18 
Sec 5. Inclusions o f other areas that can form part o f the Watershed Supporting
19 
the National Irrigation System — Lands of the public domain that have been classified as
20 
forestland or timberland pursuant to Section 3 of the 1987 Constitution and unclassified
21 
forestlands that are actually, directly and found to be essential for irrigation purposes
22 
and all other watershed areas that are supporting water-based infrastructure, can be
23 
included in the list after the passage of this Act thru the following procedures:
24 
a) Within one (1) year from the effectivity of this Act, The DENR, thru the Forest
25 
Management Bureau, 
upon the recommendation of the Department of
26 
Agriculture thru the National Irrigation Administration, shall submit to the Office
27 
of the President, application/s for inclusion in the List of Watersheds Supporting
28 
the National Irrigation System, which shall contain the following:
24


1 
1. Topographic maps ascertaining the location of the watersheds to avert
2 
any trans- boundary issues especially if the watershed embraces two
3 
or more municipalities.
4 
2. Maps 
including 
characterization 
of 
the 
watershed 
with 
legal
5 
descriptions of boundaries.
6 
3. Sangguniang 
Barangay, 
Sanguniang 
Bayan, 
and 
Sangguniang
7 
Panglalawigan Resolutions asserting the need for the inclusion of the
8 
watershed in the List of Watersheds Supporting the National Irrigation
9 
System, for the protection, 
conservation and rehabilitation 
of the
10 
same.
11 
4. Copy of Joint LGU Resolutions, MOA/MOU or any agreements for the
12 
protection, conservation and rehabilitation of the watershed, 
especially
13 
if the coverage is within two or more municipalities to avoid duplication
14 
in the filing of application and to prevent possible irritants on boundary
15 
issues.
16 
5. Copy of watershed management plan.
17 
6. Copy of a watershed resource profile, specifically, information on the
18 
to the following:
19 
6.1 Estimated water run-off
20 
6.2 Forest cover of the watershed
21 
6.3 Estimated area to be serviced by the watershed (in hectares)
22 
6.4 Multiple uses of water resources
23 
b) The 
President 
shall 
issue 
a 
presidential 
proclamation 
designating 
the
24 
recommended watershed/s to form part of the List of Watersheds Supporting the
25 
National Irrigation System and provide for the same protection, conservation and
26 
rehabilitation.
27 
c) Forest lands and timberland being primary classification of public lands pursuant
28 
to the provision of Section 3 of Article 12 of the 1987 Constitution, and the
29 
President having been vested the responsibility over primary classification of
30 
lands of the public domain pursuant to the provision of Commonwealth Act
25


1 
No.141 [1936], Sec. 6 and Executive Order No. 192 [1987], shall exercise such
2 
function upon the recommendation of the DENR and such classification/s does
3 
not warrant concurrence of Congress.
4 
CHAPTER I I
5 
ADMINISTRATION AND MANAGEMENT PLANS
6 
Sec 6. Jurisdiction, Control and Management o f Watershed Supporting National
7 
Irrigation System -  The Department of Environment and Natural Resources thru the
8 
Bureau of Forests Management in collaboration with the Department of Agriculture thru
9 
the National Irrigation Authority shall have exclusive and primary jurisdiction, control
10 
and management on all identified Watersheds Supporting the National Irrigation
11 
System.
12 
Sec 7. Creation o f Watershed Supporting the National Irrigation System Council
13 
-  The DENR and the DA shall create Watershed Supporting the National
14 
Irrigation System Council, which shall be composed of the Secretary of DENR and
15 
Secretary of DA, acting as Co-Chairmen and the Director of the Forest Management
16 
Bureau and the Administrator of the National Irrigation Administration as Vice Chairmen
17 
and the following as members:
18 
1. Department of Budget and Management
19 
2. Department of Interior and Government
20 
3. Department of Public Works and Highways
21 
4. Land Bank of the Philippines
22 
5. National Power Corporation (Hydro-electric)
23 
6. PNOC -EDC (Geothermal)
24 
7. NWRB ( Domestic-Industrial Water)
25 
8. LWUA (Domestic Water)
26 
9. 3 Representatives from IPs ( Luzon, Visayas, Mindanao)
27 
10. Representatives from the affected Sectors (Rotational-based on regional
28 
concern) 
Local Waterworks, Local Hydro-Electric Concessionaire, Tenured
29 
migrants and Local Government Units.
26


1 
Sec 8. 
Participation o f LGUs and other stakeholders in the Watershed
2 
Management Plans - All Local Government Units where the watersheds supporting the
3 
National Irrigation System are situated shall be involved in the planning, development
4 
and implementation of a comprehensive watershed management plan that must be
5 
holistic, scientific, rights-based, technology based and community-based and that shall
6 
be done in a collaborative manner to ensure that the protection of the watershed, the
7 
conservation of its water resources and the preservation of its inherent productive
8 
capacity will be sustained to bring about the highest and widest benefit for the present
9 
and future generations The sustainability of water 
resources must be ensured by
10 
encouraging the meaningful and active participation of stakeholders especially those
11 
who are directly benefited and there from, establish a sustainable and multi-institution
12 
capable of addressing natural resources issues in a watershed.
13 
There shall be common responsibility from the LGU/s and the stakeholders in the
14 
implementation of the Watershed Management Plan for the conservation, protection
15 
and rehabilitation of the Watershed Supporting the National Irrigation System.
16 
Sec 9. Creation o f Provincial and Municipal Co-Management Board. -  To enable
17 
to sustain the effort of rehabilitation, conservation and protection of the Watershed
18 
Supporting the National Irrigation System, a Provincial and Municipal Co-Management
19 
Board shall be established to facilitate joint efforts in the management of the
20 
watersheds common in their areas and oversee the utilization of water resources and
21 
conduct resource accounting to ascertain the biophysical and economic viability of the
22 
watersheds.
23 
The Co-Management Board shall be composed of:
24 
1) Concerned LGUs (Provincial, Municipal and Barangay whose territorial boundaries
25 
and jurisdiction includes the Watershed Supporting the NIS.
26 
2) Water Districts or Water Utility Firms operating and using the water that directly
27 
comes from the watershed thru the river systems.
28 
3) DENR-FMB
29 
4) D A -N IA
30 
5) Local Stakeholders-Water consumers and concessionaires
27


1 
6) NGO-PO- existing and operating within the area
2 
7) Industrial Users
3 
8) Academe
4 
CHAPTER I I I
5 
FUNDING SOURCE
6 
SECTION 10. Funding Allocation. -  Upon the enactment of this Act, the amount
7 
needed to implement the conservation, protection and rehabilitation measures shall be
8 
taken from the budget of Department of Environment and Natural Resources (DENR)
9 
and the Department of Agriculture (DA) and shall be equivalent to no less than 5 %  of
10 
the annual appropriation of each Department.
11 
Sec 11. Creation o f Watershed Supporting the National Irrigation System Fund-
12 
In order to cover the expenses and cost of_supporting the efforts to conserve, protect
13 
and rehabilitate the Watersheds Supporting the National Irrigation System, the yearly
14 
appropriation of 5% coming from the DENR and the DA budget shall be immediately set
15 
aside and placed in a Special Fund that will be called Watersheds Supporting The
16 
National Irrigation System Special Fund (WSNIS-Fund)
17 
Sec 12. Management and control o f the WSNIS Special Fund - The Watershed
18 
Supporting the National Irrigation System Council shall be in charge of the
19 
management, control and disposition of all funds for the purpose of financing projects
20 
for the conservation, protection and rehabilitation of the watersheds supporting the
21 
National Irrigation System.
22 
Sec 13. Additional Funds- Additional funds are hereby authorized to be added to
23 
the special fund to augment the funding requirements to fully implement the
24 
conservation, protection and rehabilitation measures for the watersheds. Sources of
25 
funding shall include the following:
26 
1. Collection of five (5) centavos for every peso being paid as irrigation fees.
27 
2. Collection of five (5) centavos for every cubic meter of water based on the actual
28 
billing and collection from the local waterworks utilities that are using portion of
29 
the water for household use.
28


1 
3. Collections of five (5) centavos for every kilowatt hour produced by local hydro
2 
electric cooperatives or concessionaires.
3 
4. Proceeds from local or foreign grants, donations, endowments, solicitations and
4 
all forms of contributions.
5 
Sec 14. Compensation o f Host Communities -  Ancestral/indigenous peoples'
6 
communities and other host communities living within or on the periphery of the
7 
watersheds and found to be directly protecting the watersheds shall be compensated
8 
out of the watershed fees or from any income derive from watershed resources or out
9 
of the use of water from the watershed. The compensation shall be determined by the
10 
Provincial and Municipal Co-Management Board.
11 
Sec 15. Exemption from taxes - All additional funds accruing to the WSNIS
12 
Special Fund shall be exempted from income taxes, charges and fees and all other
13 
taxes that may be imposed by the National Government or the Local Government where
14 
the income was derive.
15 
All income derive as payments for value of the water resources coming from the
16 
Watersheds supporting the National Irrigation System shall be utilized solely and
17 
directly for the conservation, protection and rehabilitation of all the WSNIS.
18 
CHAPTER IV
19 
GENERAL PROVISIONS
20 
Sec 16. Prohibitions - In line with the provision of Section 4 of the Constitution,
21 
whereby the specific limits of forestlands shall be determined by law, marking clearly
22 
their boundaries on the ground, thereafter, such forestland shall be conserved and may
23 
not be increased nor diminished except by law. The following acts shall be prohibited:
24 
1. Watershed as an integral part of established forest reserves shall not be
25 
subjected to disestablishment proceedings pursuant to the provision of Section 7
26 
of the National Integrated Protected Areas Act or R.A. 7586.
27 
2. Watersheds supporting the National Irrigation System shall not be subjected to a
28 
Protected Area Suitability Assessment (PASA) by the PAWB, to determine their
29 
suitability or non-suitability for preservation as a protected area.
30 
Rather, watersheds supporting the National Irrigation System if found to be
29


1 
degraded shall be maintained, protected and rehabilitated and restore it to its
2 
former growth and vegetation.
3 
3. The inclusion of Watersheds supporting the National Irrigation System according
4 
to the appropriate categories as protected areas under the NIPAS framework
5 
shall no longer apply.
6 
4. Multiple uses of watershed resources shall be strictly prohibited. The water
7 
resources which are the inherent contribution of watershed must be conserved,
8 
protected and enhanced to produce its optimum capacity.
9 
Sec 17. Diminution o f Watershed Areas -  There shall be no diminution of
10 Watersheds Supporting the National Irrigation System. The determination of Congress
11 pursuant to the provisions of Sec. 4, Chapter 12 of the Constitution, of the specific limits
12 of forest lands shall be maintained and protected when it comes to all proclaimed
13 watershed and WS-NIS. All attempts to re-classify and remove portion of watershed area
14 to be converted to other uses shall not be allowed.
15 
Sec 18. Disposition of Watershed Areas -  The following activities are considered
16 environmentally critical projects and activities that are detrimental to the integrity of the
17 water resources and hydrological balance of the Watersheds supporting the National
18 Irrigation System and may bring irreversible damage to the watershed's water bearing
19 capacity, and therefore shall not be allowed and strictly prohibited;
20 
1. All forms of mining operations.
21 
2. Granting of Mineral, Production Sharing Agreements (MPSA) or Financial or
22 
Technical Assistance Agreement FTAA.
23 
3. Granting of mining permits or licenses, for extraction of minerals and Quarry
24 
Permits for the extraction and utilization of quarry resources.
25 
4. All forms of logging operations.
26 
5. Kaingin type of Agriculture.
27 
6. Any form of human settlements except IP community.
28 
7. Harvesting of trees or parts of trees for charcoal making.
29 
8. Unlawful Occupation or encroachment or destruction of watershed
30


2
3
4
5
6
7
8 
9
10
11
12
13
14
15
16
17
18
19
20 
21 
22
23
24
25
26
27
28 
29
1
Sec 19. Penalties - Any person who knowingly or willfully violates the provision 
of this Act shall be punished by imprisonment of no less than one (1) year, to not more 
than three (3 )years or a fine of no less than five hundred thousand (500,000) pesos or 
both, at the discretion of the court. For tenured migrants, and settlers living inside the 
watershed that unknowingly violate the provisions of this Act; they shall be subjected to 
a month of rigid training and capability development in lieu of fines and imprisonment. 
Repeat of violations shall be dealt with fines or imprisonment and ejectment.
Sec 20. Suppletory Application o f Existing Legislation - The provision of 
Presidential Decree No. 705 (Revised Forestry Code); Republic Act 7586 (NIPAS Act); 
Com. Act No. 141 [1936]; Phil. Clean Water Act; Water Code of the Philippines; 
Executive Order No. 192 Series of 1987; Executive Order 224 Series of 1987; Executive 
Order No. 510 Series of 2006; and other laws not inconsistent with this Act shall have 
suppletory effect.
Sec 21. Repealing Clause - Section 7 and Section 5 (a) & (d) of the R. A. No. 
7586 (NIPAS ACT); Executive Order No. 224; Section 18 of R.A. 7942 (Phil. Mining Act 
of 1995 and all other laws, decrees, executive orders, rules and regulations, issuances 
or parts thereof inconsistent with this Act are hereby repealed or amended accordingly.
Sec 22. Separability Clause - If for any reason, any section or provision of this 
Act is declared null and void, no other section, provision, or part thereof shall be 
affected and the same shall remain in full force and effect.
Sec 23. Effectivity Clause - This Act shall take effect immediately after 
publication in at least two (2) national newspaper of general circulation.
Approved
31