2011/9/21

VICENTE B. TUDDAO, JR., Ph.D.
Executive Director
River Basin Control Office
Department of Environment and Natural Resources
Mandarin Oriental Hotel
Makati City, Metro Manila
September 21, 2011

 421 Principal rivers (421 river basins)
 18 major river basins (with drainage area greater

than1,000than1 000 sq.km.)
sq km )
 72 lakes
 Extensive groundwater aquifers

1

2011/9/21

Number1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
TOTAL

Name of River BasinCagayan
Mindanao
AgusanPampanga
Agno
Abra
Pasig-Laguna
Bicol
AbulugTagum Libuganon
Ilog-Hilabangan
PanayTagoloan
AgusDavao
Cagayan de Oro
JalaurBuayan-Malungan

Drainage (sq. km.)27,75323,16911,937
10,434
5,952
5,125
4,678
3,771
3,372
3,064
1,945
1,843
1,704
16
1,645
1,623
1,521
1,503
1,434
112,47337.50 % of the total land area of the Philippines2

Total Drainage Area:
1,645 Km Square
Water Resources Potential
XII Mindanao

XII Agus

XI BuayanMalungon

XI Davao

XI TagumLibuganon

X Cagayan de Oro

X Tagoloan

X AgusanVII Cebu Island

VI Ilog- Hilabangan

VI PanayVI Jalaur

V Bicol

IV Pasig-Laguna

III Agno

III Pampanga

II Abulog

II Cagayan

I AbraMCM

2011/9/21

30000

25000

20000

15000

10000

5000

0

Water Demand in 2025

AGUS RIVER BASIN (RANAO RIVER BASIN)

River Basin Information Brief

632011/9/21

TypeArea
ExtentAdministrative
Coverage

Institutional
Coordinating Agency

Type and Scope of River
Basin/Watershed Management
Plans
Coordination and prioritization of
the different levels of basin
management within a national
strategy framework

NationWhole Country

National inter-agency
basin resourcesmanagement forum/
national river basin
management body

River Basin

Over1000km2

Typically the
topographic
boundaries would
include land occurring
within 3 or more
provinces and 2 ormore regions

River Basin Organization Plan aimed at broad sector(RBO)/Authority that isdevelopment planning, and landinter-regional in extent
use zoning. Identification of
degraded and/or economicallyimportant medium to large
watersheds within the river basin.
Identification of medium-large
areas in need of protected area
status.
status

Large
Watershed

500-1000
km2

Typically thetopographic
boundaries would
include land occurring
within 3 or more
provinces and at least
one but no more than2 regions

Regional level watershedmanagement council thatis inter-provincial inextent

Plans aimed at identifying broadland use zones and areas (smallto medium watersheds) where
there is a need for improved
watershed management.
Identification of small-medium
areas in need of protected areastatus.

TypeArea Extent

Administrative
Coverage

Institutional
Coordinating Agency

Type and Scope of BasinManagement Plans

MediumWatershed

100-500 km2

Small
Watershed

10-100 km2

Micro
Watershed

Under 10 km2 Typically thetopographic
boundaries would fallwithin one municipality
and include land
occurring within one orat most two
Barangays

Typically thetopographic
boundaries wouldinclude land occurring
within at least one but
no more than two
provinces
Typically the
topographic
boundaries would fallwithin one province
and include land
occurring within one
or more municipalities

Provincial level
watershed ma

Plans aimed at identifying areas
within the watershed where theris a need for field level activities
Implementation plan targets
activities only on the critical partof the watershed.

Provincial/ municipal
level watershedmanagement council/committee

Plans aimed at field level
implementation of improved
watershed/ land management
interventions. Plan covers thewhole (or most of the) watershed
and adjacent land of theparticipating communities.

Municipal/ Barangay
community level
watershed management
councilPlans aimed at field level
implementation of improved
watershed/ land management
intervention. Plan covers thewhole watershed and adjacentland of the participating
community42011/9/21

Water Resource
Management
Framework

Watershed
Management
framework

Integrated River BasinManagement and Development
Framework
Plan
Flood Mitigation
framework

WetlandManagement
Framework5

2011/9/21

At the River Basin Level

RainfallProtection and sustainable development of water resources
across various ecosystem should focus on: Water Quality Management (Water Pollution reduction) UPLAND/FOREST Water Supply and Demand Management (watershedECOSYSTEMMManagement,t watert conservation/re-use/recycling
ti //li iin`
farming and urban water utilization)

LOWLANDECOSYSTEM

COASTAL &MARINE+ECOSYSTEMRiver Basin as a Planning unit
Water conservation considers hydrologic cycle and climate change issue• .

FOREST

Water Quality
Coastalecosystem
zone

UPLAND

URBAN
ecosystem
zone

Water Quality

ECOSYSTEMZONEECOSYSTEMZONE`+GROUNDWATER AQUIFER ECOSYSTEM

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2011/9/21

The Philippine Clean Water Act 2004
(Republic Act No, 9275)
designate certain areas as water quality
management area appropriate physiographic units
such as watershed, river basins or water resources
regions
similar hydrological, meteorological or geographic
conditions which affect the physiochemical, biologicaland bacteriological reactions and diffusions ofpollutants
ll t t iin watert bbodies
di or otherwise
thi sharehcommon interest or face similar development
programs, prospects, or problems

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2011/9/21

WATER QUALITYMANAGEMENTSYSTEMDESIGNATION OF
WQMAs

AIMS TO IMPROVE WATER QUALITY
THROUGH FOCUSED INTERVENTIONSOR ACTIONS TO ADDRESS WQ
PROBLEM(S) OF THE AREA

FORMULATION AND
IMPLEMENTATIONOF WQMA ACTION
PLANS

IDENTIFICATION
OF NAAsManageable Planning Area
Focused intervention or actions designed to address specificwater quality issues in each basin area
Management area with similar hydrological, hydroecological,
meteorological, and geographical characteristics
Ease of monitoring the state of water quality

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2011/9/21

Stakeholders

Institutions

Environment

Participation

Laws and Policy

Quality

Ownership

Capacity BuildingVoice andRepresentations

Financial
SustainabilityLife Support
SystemPoverty Reduction

Productivity
Integrity

Dynamics of Water Quality, River Basin Management
and Governance in the Philippines

THE CASE OFILOILO--BATIANO RIVER BASIN:ILOILOWATER QUALITY MANAGEMENT AREA

92011/9/21

ILOILO-BATIANO RIVER BASIN
San Miguel

Iloilo-Batiano
IloiloRiver System
WQMA

Sta. Barbara
MAMBOGCREEK-JIBAOCREEKJIBAOAN RIVER
Pavia

CABALUAN
RIVEROtonDUNGONCREEKCALAJUNAN
CREEK

Iloilo CityILOILO RIVER

BATIANO RIVER

River Streamflow dynamics during high tide
Backflow of water102011/9/21

River Streamflow dynamics during low tide

Delineation of WQMA and Sub-Basins Area
WATER QUALITYCABALUAN(SUB-BASIN 1)
MAMBOGUPSTREAMILOILO (SUBBASIN 2)
CALAJUNAN‐
MIDSTREAM ILOILO((SUB‐BASIN 3)

DUNGONDOWNSTREAMILOILO (SUB-BASIN4)BATIANO( SUB-BASIN 5)11

2011/9/21

Establishment of Water Quality Monitoring
Stations
Monitoring Stations

6 Stations Along Iloilo River (all in Iloilo City)
4 Stations Along Batiano River
3 Stations Along Calajunan Creek
2 Stations Along Dungon Creek
1 Station in Mambog Creek

WATER QUALITY MONITORING STATIONSCalajunan Upstream
Calajunan Downstream

Mambog Dam
Dungon Br.

CalajunanDumpsite

DungonMouth
Carpenter’s
BridgeSooc Br.
Batiano Br.,Oton
Sto Nino,
Arevalo

Forbes Br.
Quirino Br.
B. Aquino
Br.

Calumpang
Br.

ParolaBlvd Br.

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2011/9/21

Identification, Collection and Analysis ofWater Quality Parameters
Parameters Analyzed
Biochemical Oxygen Demand, pH, Total Dissolved
Solid, Total Suspend Solid, Dissolved Oxygen,
Color and Temperature

Any effort to effectively and efficiently
manage water quality of any water bodies
can be achieved through river basin as aplanning unit.
The stakeholders and institution play major rolein achieving effective water quality
management using basin approach.

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2011/9/21

 Integration of water quality strategies and action plansat the river basin level integrated framework/master plan Establishment and operationalizationRiver
operationali ation of Ri
er Basin Integrated
Information Management System (RBIIMS)
incorporating water quality parameters
 Intensify law enforcement to apprehend violators ofClean Water Act
 Strengthen participation and partnership in water
quality and river basin management
 Creation and mobilization of River Basin Organization (RBO)
in all river basin

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