An EPP Analysis of Pasig River

(GROUP 5) IBARRA, KINTANAR, PEREN, SEE, VINUYA

Ecological Factors Length: 19 km

Upstream: West of Laguna de Bay

Downstream: East of Manila Bay

Coverage: Manila, Mandaluyong, Makati, Pasig, and Taytay, Rizal

Ecosystem Type: River and Tidal Estuary

Tributaries: 4 major & 43 minor

Sub-basins: 6

Esteros: 19 (these creeks directly discharge into the river)

Societal Factors

Post-WW2 Restoration

Urbanization of Metro Manila

Rapid industrialization

Influx of population

Lack of regulations and monitoring

regarding river use

Individual Factors

Lack of knowledge about river preservation

Belief that it is acceptable to exploit the Pasig River for human needs (food, water) and activities (cleaning, excreting waste)

Lack of socio-economic opportunities elsewhere (space to live, jobs)

Belief that river management is governments liability

Infrastructure

Housing of informal settlers

Bridges that connect cities

Factories that dump their waste to the river

Ferry service (Manila Pasig)

Action

Conversion of Pasig River into

the following

Informal settlement

area

Industrial effluents

depot

Backyard garbage

bin Sewage

Untamed urban jungle

Intake/Output

Waste disposal in Pasig River

River flow diversion Manggahan Floodway

River dredging

Increase in river pollution and contamination of Pasig River

Physical change to the river

Change

Increase of harmful substances in water

Increase in pollution

Decrease of dissolved oxygen in the

river

Decrease in marine life

Ecological Impacts

Increase in harmful bacteria Bacteria (ex. Ecoli) Viruses Protozoa

Fish kill due to lack of dissolved oxygen in the

water

Overall damage to water quality in the Pasig River

Polluting of other bodies of water, Laguna de Bay

Societal Impact Increase of harmful substances in water

detrimental to health when consumed cannot be used for cleaning breeding place of disease-carrying organisms (e.g.

dengue mosquitoes)

High water level due to accumulation of soil and climate change weakens the foundation of houses built right

beside the river

Lack of dissolved oxygen in the river absence of food source which contributes to

hunger issues

Heavily polluted water caused air pollution due to different chemicals

from wastes increased temperature that results to worse

living conditions for the residents nearby

Problem

Social

Issues

Exposure to disease

Flooding

Lack of discipline (i.e. into the river)

Political

Issues

Complacency of law-breaking

citizens

Economic

Issues

Inability to produce

marketable goods

Target

improved environmental management of the Pasig River basin within Metro Manila particularly for wastewater management

promotion of urban regeneration and renewal in the vicinity of the Pasig River

Pasig River Environmental Management and

Rehabilitation Sector Development Program

Bring back water quality

Relocation Kapit Bisig para sa Ilog Pasig

Kapit Bisig para sa Ilog Pasig

Physio-chemical, Heavy Metals, Bacteriological

Number of families relocated

Pasig River Environmental Management and Rehabilitation Sector Development Program

total BOD or Biological Oxygen Demand should be less than its maximum assimilative capacity

Number of families benefitting from the infrastructure changes

Measure