Kingdom of Cambodia COUNTRY REPORT International Cooperation Training

Kingdom of Cambodia COUNTRY REPORT International Cooperation Training Center (ICTC) “Sewage and Wastewater Treatment Management “ 02 -22 April 2006 Seoul and Incheon, Korea Name: Mr. KAING LEANG KRY Official (MPP) And Mr. KHEM SANDAP Civil Engineer (DPWP) Municipality of Phnom Penh and Department of Public Works and Transport of Phnom Penh

BASIC COUNTRY DATA • Area: 181, 035 Km² • Climate Condition: -Temperature: Max=41ºC, Min=15ºC, Averages=25ºC -Annual Rain Fall: 1400 mm -Season: -Dry season from November to April -Rainy season from May to October • Population Size: 11, 561 million (In Phnom Penh: 958, 000) -Agricultural Sector: 76. 5% -Industrial Sector: 6. 4% -Services Sector: 17. 1%

Organizationnal Structure of Municipality of Phnom Penh Governor KEP CHUKTEMA First Vice-Governor Mam Bunneang Vice-Governor Map Sarin Chhun Sirun Trac Thaisieng Pa Socheatevong Vice-Governor Sisowath Pheanuroth Vice-Governor Vice-Governor Ouch Thongseng Khon Sear Mann Chhoeurn Moe Yurang Chief of Cabinet Nuon Someth

Organizationnal Structure of Department of Public Works and Transport Director Mr. Nhem Saran Deputy Director Mr. Ean Narin Mr. Ung Bun Ly Deputy Director Mr. Mey So Panha Mr. Peng Sokun Administration Public Works Personal and Finance and Planning Office Transport Office Human Resources Office Road and Drainage and District Public Bridge Sewerage Works Office Division Flood Solid Waste Public Garden Protection Management Division Public Lighting Division Pound Division

• Mr. Kaing Leang Kry, Municipality of Phnom Penh Officer, responsible for solid waste, rubbish, transportation and sewage system in the City. Nº 69, Preah Monivong Blvd. , Sangkat Spras Chak Khan Daun Penh, Phnom Penh Tell : 023 430 466 Fax : 023 430 466 • Mr. Khem Sandab, Civil Engineer from Drainage Division, Drainage Design, Construction and Maintenance. St. 211 Sangkat Veal Vong Khan 7 makara Phnom Penh. Tell : 023 884 371 Fax : 023 884 371

Problems of the Operation when managing Sewage and Wastewater Treatment Plant - So far there are no wastewater treatment plants in our country, the outlets of the primary sewer network are into storage basins in Phnom Penh which are used as treatment plants. - The problem of storage basins mainly lies with thier progressire filling by silt and other solids brought in through the combined sewer system, direct runoff on street surface during flooding and sludge from septic tanks.

- Municipality wastewater is primarily disposed of through a network of sewage drainage pipes that empty into retention basins known as Beong. - The wastewater in the basin is later pumped into rivers and lakes. In Phnom Penh, for example, there is a network of sewage/drainage pipes and 11 pumping station covering the 6 main catchment areas: Beong Trabek, Beonk Salang, the Khmero Russian Hospital vicinity, Daun Penh New front of Basac, and Toul Kok.

LOCATION OF PUMPING STATION IN PHNOM PENH TOUL KORK I PUMPING STATION PHER KUY PUMPING STATION PREAH KOMLUNG PUMPING STATION TOUL KORK II PUMPING STATION TOEK LAAK PUMPING STATION CHAK TOMUK PUMPING STATION BOENG SALANG PUMPING STATION RUSSIA HOSPITAL PUMPING STATION TUMPUN PUMPING STATION BOENG TRABEK PUMPING STATION

RUSSIA HOSPITAL PUMPING STATION

CONSTRUCTION AND OPERATION OF SEWAGE • Sewage and Wastewater Treatment Facility - Sewer network had been constructed until the end of 1960 s with city development during this period, numerous channels and ditches were filled up and converted to sewer pipes. - The sewer network is now managed by DPWT. - The existing combined drainage and sewerage system consists of 150 km of pipes network. 9 km of canals, 4 retention basin and 11 pumping station, and covers 24 km 2 of inner dike area in Phnom Penh. The Drainage and sewerage system, due to absent of regular maintenance for 25 year, is in a bad condition and needs urgent attention.

- Drainage and sewage Division of DPWT is in charge of operation and maintenance of the drainage pumping stations in the municipality of Phnom Penh. - Major repair of equipment in dry season. - Daily operation records includes the number of installed pumps, water level at pumping station. - Operation time (Start , End ) - Number of Pump working / broken.

CONSTRUCTION AND OPERATION OF SEWAGE

Public banner from the Ministry of Interior and the Ministry of Environment demonstrating to people the need to keep sewers clean

WATER QUALITY STANDARDS IN PUBLIC WATER AREAS FOR BIO-DIVERSITY CONSERVATION 1. River No 1 2 3 4 5 Parameter Unit p. H BOD 5 Suspended Solid Dissolved Oxygen Coliform mg/l MPN/100 ml Standard Value 6. 5 – 8. 5 1 – 10 25 – 100 2. 0 – 7. 5 < 5000

2. LAKES AND RESERVOIRS No 1 2 3 4 5 6 7 Parameter Unit p. H COD Suspended Solid Dissolved Oxygen Coliform Total Nitrogen Total Phosphorus mg/l MPN/100 ml mg/l Standard Value 6. 5 – 8. 5 1 – 8 1 – 15 2. 0 – 7. 5 < 1000 0. 1 – 0. 6 0. 005 – 0. 05

3. COASTAL WATER No 1 2 3 4 5 6 7 Parameter Unit p. H COD Dissolved Oxygen Coliform Oil content Total Nitrogen Total Phosphorus mg/l MPN/100 ml mg/l Standard Value 7. 0 – 8. 3 2 – 8 2 – 7. 5 < 1000 0 0. 2 – 1. 0 0. 02 – 0. 09

TO PROMOTE THE COOPERATION BETWEEN CAMBODIA AND KOREA We think that the: - Korean Government should send more investors to invest in Cambodia. - Korean Government should send technical assistants to help Cambodia, especially in Phnom Penh. - Korean Government should increase the number of participants undertaking training course about environment.

EXPECTATION FROM THE COURSE - We had known about new technology in Korea to improve their country. - We hope that after finishing this course we can get more experience on high technology to improve our work in the country. *012 553 176 Sarey Vuth ( pumping station)

Toek Laak New Pumping Station

PLAN OF BOENG TRABEK PUMPING STATION

GENERAL PLAN OF NEW TUMPUN PUMPING STATION

PLAN AND PROFILE TUMPUN NEW PUMPING STATION