The 17th WEPA Annual Meeting
WEPA Action Program in Cambodia

Presented by: Chandath Him
22 April 2022

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Acknowledgement• Ministry of Environment of Japan• Institute for Global Environmental Strategies (IGES)• WEPA Advisors and WEPA Secretariate

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Content• Previous year activities (April 2021 - March 2022)• Upcoming plan (April 2022 - March 2023)

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Previous year activities (April 2021- March 2022)• WEPA Action Program “Facilitating Comprehensive Water Quality
Management Plan in Tonle Sap Lake through Capacity Building ofOfficers at Sub-national Level”• Objectives and Activities• Develop a guidebook for provincial staffs on “How to identify pollution
sources and estimate pollution loads”• Conduct survey and analysis of major pollution sources in domestic and industrial
sectors and estimate loads for major pollutants to TSL• Conduct survey and analysis of major pollution sources in agriculture and livestock
sectors and estimate loads for major pollutants to TSL• Training national and subnational officers to utilize the guidebook

4Capacity buildings training sub-national officers
Why necessary: Inputs of sub-national officers in CWQMPwill be essential based on local pollution source and loads

Capacity buildings workshop of national and Sub-nationalofficers

Policy dialogues “WaterEnvironment
Governance of Tonle Sapin National Strategies on
Water QualityManagement”
Why necessary: To
facilitate inter-agencies
collaborations

PlanGenerating scientific evidenced based knowledge onwater quality issues in the entire Tonle Sap Lake
Why necessary: Will provide basis to setup WQ
improvement targets and necessary action

FY2022-2023

Comprehensive water quality management plan in Tonle Sap Lake under theumbrella of the National Strategies on Water Quality Management
Why necessary: To achieve desired state of TSL water environment

Develop methodology for generating data on major pollution sources andloads of pollutants

Why necessary: Lack of understanding pollution
about pollution
sourcesource
and loads
and inloads
TSLin TSL
Survey of major
Survey ofsourcesmajor
pollution
pollution
sources(Ag.,LS., Ind.,
Dm)(Ag., visit,LS., Ind.
Dm)
(Onsiteinterview,questionnaire survey)

Collecting samples toCollecting Samples tomeasure pollution
measure pollution
conc. (BOD, COD, TN,conc.
TP, TSS etc.
(Seasonal sampling)(Seasonal sampling)

Monitoring flow rateof pollutants in TSL

Estimate pollution
loads from majorsectors
5FY2021-2022

Why necessary: will work as trainer at the capacity building
training program about methodology of inventory analysis

Management of WEPA Action Program in Cambodia
WEPA Secretariat (IGES)
Role: Supervision of AP in Cambodia

MOEC
Role: Implementation of AP inCambodia

ITC, RUA
Role: Support MOEC to conduct
field survey, analysis, drafting
guidebook

WEPA
Secretariat(IGES)

CTII Engineering, Japan
Role: Share experience of Japan,
Contribute in Guidebook
development and capacitybuilding training
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Previous year activities (April 2021- March 2022)• Project location: Tonle Sap Lake (TSP)

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Conditions and characterization of Tonle sap lake andthe surrounding area for the creation of sound water environment
Mekong river

Siem Reap area
Historical sites
Pollutants from various
activities in the upstream

Pollution sources

Urbanized area

Water use &Effluent

Agriculture(paddy)

River

Pollution sources

Pollution loadTonle sap lake
Floating house

Characterization of the lake
1)Shallow lake(depth:1～9m)
2)Backward water flow from Mekong river
3)Big seasonal change in water level4)Eutrophication and growth ofphytoplankton5)Active fish farming as the key protein
source6)Boat-dwelling people

Live stocks

Individual houses

Backward flow

Pollution load
Pollution sources

Essential advice to the pollution sources toimprove the process and to reduce thepollutants discharge is inevitable.

Phnom Penh area
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Previous year activities (April 2021- March 2022)
Survey location

2 Floating villages (Phat Sanday and Chhnok Tru)

Phat Sandayvillage

ChhnokTru village

9Previous year activities (April 2021- March 2022)
Questionnaires for survey

10Previous year activities (April 2021- March 2022)

Daily activities of the villagers

11Previous year activities (April 2021- March 2022)

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Previous year activities (April 2021- March 2022)• Some results• 50 HHs in Chnok Tru, 30 HHs in Phat Sanday, 20 wastewater samples

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Previous year activities (April 2021- March 2022)• Guidebook

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Previous year activities (April 2021- March 2022)• The First Capacity Building Workshop of the Provincial
Level Agencies on Inventory Analysis of Pollution
Sources and Loads for a Sound Water EnvironmentManagement in Tonle Sap Lake on 4th March 2022. With
total of 65 persons (25 officials from Sub National Level,
15 officials from National Level)• Objectives:• Providing capacity building of the provincial levelagencies on inventory analysis of pollution sources
and loads by sharing experiences of WEPAcountries.
• Sharing progress of WEPA Action Program forwater environment management and present
preliminary results.
• Discussing the outline of the guidebook forprovincial staffs “How to identify pollution sourcesand estimate pollution loads in order to formulate
the Comprehensive Water Quality ManagementPlan for Tonle Sap Lake (TSL)15

Upcoming plan (April 2022- March 2023)

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Thank you for your kind attention

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