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THE
PRIME MINISTER
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SOCIALIST
REPUBLIC OF VIETNAM
Independence - Freedom - Happiness
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No. 752/QD-TTg
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Ha Noi,
June 19, 2001
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DECISION
RATIFYING THE OVERALL PLANNING FOR DRAINAGE SYSTEM OF HO
CHI MINH CITY BY 2020
THE PRIME MINISTER
Pursuant to the Law
on Government organization dated September 30, 1992;
Pursuant to the Practice
on investment and construction management enclosed with the Decree No.
52/1999/ND-CP dated July 08, 199 and amended by the Decree No. 12/2000/ND-CP
dated May 05, 2000 by the Government;
Pursuant to the
Decision No. 35/1999/QD-TTg dated March 05, 1999 by the Prime Minister
ratifying the orientation for the development of urban drainage in Vietnam by
2020;
Pursuant to the
Decision No. 123/1998/QD-TTg dated July 10, 1998 by the Prime Minister on
overall planning of Ho Chi Minh City by 2020;
At the proposal of
the President of the People’s Committee of Ho Chi Minh City in the Statement
No. 3167/UB-DT dated August 22, 2000 and the request of the Minister of
Construction in the document No. 2405/BXD-KTQH dated December 27, 2000.
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Article 1. Ratify the overall planning for drainage system of Ho Chi
Minh City by 2020 with the following main contents:
1. Objectives
a) Research and
conduct assessment of the drainage system for rain water and waste water of Ho
Chi Minh City;
b) Determine basic orientations,
improve the drainage of rain water and waste water of Ho Chi Minh City,
determine the plans prioritized for the 2001 - 2005 period;
c) Establish a program
for investment in, renovation and upgrade of the drainage system of Ho Chi Minh
City in 2001 - 2020 period, foresee the total investment and determine the
capital for construction of drainage system to eliminate the permanent water
logging in the city and the urban environment pollution, establish the program
of increase of capability of management and operation of the drainage system.
2. Scope of research
The scope of research
of the drainage system shall be suitable for the general planning of the City
by 2020, including the current inner city areas with an area of 140 km2
and the adjacent area with an area of 510 km2.
3. Planning contents
a) Planning stages:
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b) General principles:
- The drainage system of
Ho Chi Minh City shall be established and developed depending on the actual
conditions and the planning in accordance with the orientation of development
of urban drainage in Vietnam by 2020 which has been ratified by the Prime
Minister;
- The current drainage
system shall be used thoroughly and upgraded and developed according to the
development of the City;
- In current urban
areas where there are common drainage systems (for rain water and domestic
waste water), interceptor sewer system shall be constructed to bring dirty
water to treatment zones;
- In new urban areas,
common drainage systems shall be constructed; spaces for construction of
specific drainage systems shall be made during the construction of the urban
areas if possible;
- Dirty water from
production facilities and public service providers shall be locally treated to
meet the standards according to applicable regulations before being brought to
the common drainage systems.
c) Overall planning
for drainage of rain water:
- Drainage basin:
The whole City shall
be divided into 6 drainage basins (depending on the elevation of land and the
urban planning), including:
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+ The Northern area
includes a part of district 12, Go Vap district, Binh Thanh district, Tan Binh
district and Hoc Mon district. Main watercourses in the basin include Tham
Luong - Ben Cat, Ben Da - Ba Hong ditch;
+ The Western area
includes a part of district 6, district 8, Tan Binh district and Binh Chanh
district. Main watercourses include Chua ditch, Nuoc Len ditch;
+ The Southern area
includes a part of district 7, district 8, Binh Chanh district and Nha Be
district. Main watercourses include Kenh Doi - Kenh Te;
+ The Northeast area
includes a part of district 9, Thu Duc district;
+ The Southeast area
includes a part of district 2, district 9, Thu Duc district.
- Basic calculating
parameters:
+ Calculation
frequency:
Flooding cycle of
grades 3 and 4 sewers is 2 year;
Flooding cycle of
grade 2 sewers is 3 year;
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Flooding cycle of
local pump stations is 5 year.
Foundation leveling
construction ≥ 2 m
Designed flooding
level at estuaries of Sai Gon river is 1.32 m.
- Construction of
local pump stations:
Local pump stations
shall be constructed at several low-land areas near to center valley. Pump
stations to be constructed:
+ Thanh Da, with a
capacity of 1.12 m3/s;
+ Me Coc 1, with a
capacity of 1.5 m3/s;
+ Me Coc 2, with a
capacity of 1.0 m3/s;
- Construction of
detention basin:
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+ Length of sewers and
ditches:
Total length of sewers
and ditches is approximately 6,000,000 m, where current common sewer is 15,200 m
long, main sewer is 1,400,000 m long, grades 2 and 3 common sewer is 602,600 m
long, sewer for rain-water collection is 207,400 m long, open ditch is
3,770,000 m long.
Basic norms:
Common sewer: 111m/ha;
Grades 2 and 3 sewer:
48 m/ha;
Sewer for rain-water
collection: 11m/ha;
Open ditch: 100 m/ha.
d) Planning for
drainage of dirty water:
The area using the
system of drainage of dirty water by 2020 shall have an area of 189,78 km2,
with the population of 5,775,000 people including current inner-city area and
new districts like Thu Duc district and districts 2, 7, 9 and 12.
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The city is divided
into 9 areas as follows:
+ Tham Luong - Ben Cat
basin including Binh Thanh district and Go Vap district;
+ Nhieu Loc - Thi Nghe
basin including district 1, 3 and 10, Binh Thanh district, Go Vap district, Phu
Nhuan district and Tan Binh district;
+ Tan Hoa - Lo Gom
basin including district 6, 8 and 11 and Tan Binh district;
+ Tau Hu - Ben Nghe -
Kenh Doi - Kenh Te basin including districts 1, 3, 4, 5, 6, 8, 10 and 11 and
Tan Binh district;
+ Sai Gon’s Western
basin including district 12;
+ Sai Gon’s Southern
basin including district 7;
+ Sai Gon’s Northern 1
basin including Thu Duc district;
+ Sai Gon’s Northern 2
basin including district 9;
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dd) Standards for
discharge of dirty water: (including all the domestic waste water, public
services, handicraft services and 10% of water absorbing into the sewer):
- Inner city: 345
liter per person per day and night,
- New urban areas: 265
liter per person per day and night,
- Outskirts: 141 liter
per person per day and night,
- Industrial zones: 55
m3/ha.
e) Amount of dirty
water discharged from households:
Amount of dirty water
calculated by BOD5:
- Inner city: 60 g per
person per day and night;
- New urban areas: 45
g per person per day and night;
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g) Treatment
requirement:
Pursuant to standard B
of standard B of TCVN 5942 - 1995 providing that quality of surface water
according to use purpose for tap water is 25 mg/l and TCVN 5945 - 1995
providing that industrial wastewater must satisfy the acceptable level before
being discharged to rivers or ditches applicable to concentrated industrial
zones being 50 mg/l.
h) Collection system:
In old urban areas:
common, rain water and waste water drainage systems; interceptor sewer systems
shall be constructed along ditches for collecting and bringing dirty water to
treatment zones. Regarding new urban areas, common drainage systems shall be
priorly constructed; spaces for construction of specific drainage systems shall
be made during the construction of the urban areas if possible.
i) Wastewater
treatment lines:
On the basis of the
capacity of site clearance and the financial resources, the waste water
treatment lines for specific basin shall be decided in the feasibility study.
k) Locations of
treatment stations:
Basin at treatment
zones encroaching land (in ha)
- Tau Hu - Ben Nghe in
Binh Hung commune, Binh Chanh district 50 ha Kenh Doi - Kenh Te.
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- Tan Hoa - Lo Gom,
Tan Kien commune, Binh Chanh district: 20 ha
- Tham Luong - Ben Cat,
An Phu Dong ward, District 12: 11 ha
- Sai Gon’s Western
area adjacent to 19/5 canal, provincial road No. 13: 11 ha
- Sai Gon’s Southern
area, Phuoc Kien commune, Nha Be district: 8 ha
- Sai Gon’s Northern
1, green-tree zone adjacent to Hanoi Highway: 10 ha
- Sai Gon’s Northern
2, green-tree zone adjacent to Rach Con: 7 ha
- Sai Gon’s Eastern
area adjacent to Giong Ong To area, Ca Tre Nho ditch: 12 ha (Cat Lai industrial
zone).
4. Management and
operation
Ho Chi Minh Urban
Drainage Company is responsible for managing, operating and maintaining the
whole drainage system of rain water and waste water of the city, establishing
plans on training of officials and employees in operation of the system,
establishing plans on purchase of equipment and materials, plans on
construction of urban drainage system.
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To conduct the overall
planning for drainage system of rain water and waste water of Ho Chi Minh City
by 2020, an investment of VND 40,380 billion shall be made.
6. Policy mechanism
and priority plans
Mobilize resources
according to the orientation of development of urban drainage of Vietnam by
2020 ratified by the Prime Minister in the Decision No. 35/1999/QD-TTg dated
March 05, 1999 by the Prime Minister.
Forbid strictly any
discharge of waste water unconformable to the Law on Water resources, the Law
on Environment protection and establish handling measures therefor.
Innovate the
management system, increase the capacity of Ho Chi Minh Urban Drainage Company
in the management and operation of the drainage system; collect drainage
charges to provide the Drainage Company with capitals for maintenance of the
drainage system.
Focus on the
enhancement of priority plans approved by the Prime Minister like Nhieu Loc -
Thi Nghe, Kenh Doi - Kenh Te, Hang Bang ditch, Tan Hoa - Lo Gom, Tham Luong -
Ben Cat to eliminate the water logging as well as urban environment pollution.
Article 2: Implementation:
- People’s Committee
of Ho Chi Minh City shall preside over and cooperate with relevant Ministries and
authorities in implementing this overall planning;
- The Ministry of
Construction shall direct the implementation of projects on investment in
drainage system in accordance with the common planning for the development of
Ho Chi Minh City by 2020, conduct inspection of technical designs of projects
on construction of drainage system under current regulations, provide
instructions in the management of drainage profession according to applicable
regulations;
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- Ministry of Science,
Technology and Environment and the Ministry of Health shall inspect and propose
standards and measures for drainage of waste water into watercourse system of
the city to ensure the environment safety;
The Ministry of
Agriculture and Rural development and the Ministry of Transport shall cooperate
with the People’s Committee of Ho Chi Minh City and the Ministry of
Construction in conducting inspection of project on development of transport
and irrigation in accordance with the drainage planning of the City;
- General Department
of cadastre shall consider processing the allocation of land for site
clearance, serving the development of drainage system.
Article 3. This decision comes into force after 15 days from the day
on which it is signed.
The President of the
People’s Committee of Ho Chi Minh City, the Minister of Construction, the
Minister of Planning and Investment, the Minister of Finance, the Minister of
Agriculture and Rural Development, the Minister of Health, the Minister of
Science, Technology and Environment, the Governor of the State bank of Vietnam
and the Director of General Department of cadastre and Heads of relevant
agencies are responsible for implementing this Decision./.
P.P. THE PRIME MINISTER
THE DEPUTY PRIME MINISTER
Nguyen Tan Dung
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