Improving Water Security in Water Stressed Bagmati River Basin, Nepal (2)
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Transcript of Improving Water Security in Water Stressed Bagmati River Basin, Nepal (2)
Improving Water Security in Water Improving Water Security in Water p o g ate Secu ty atep o g ate Secu ty ateStressed Bagmati River Basin,Stressed Bagmati River Basin,
Rabindra Ray, Engineer, GoN, Ministry of Urban Development, HPCIDBCRabindra Ray, Engineer, GoN, Ministry of Urban Development, HPCIDBC
NepalNepalRam Kumar Shrestha, Engineer, GoN, Ministry of Urban Development, HPCIDBCBharat K.C., Senior Divisional Engineer, GoN, Ministry of Urban Development, HPCIDBCRam Kumar Shrestha, Engineer, GoN, Ministry of Urban Development, HPCIDBCBharat K.C., Senior Divisional Engineer, GoN, Ministry of Urban Development, HPCIDBC
High Powered Committee for Intregated Development of Bagmati Civilization (HPCIDBC)
High Powered Committee for Intregated Development of Bagmati Civilization (HPCIDBC)
www.bagmati.gov.np
I t d ti t B ti B i
OutlineOutline
Introduction to Bagmati Basin
Status of River
Bagmati Action Plan (BAP)
Activities carried out by HPCIDBC
F t Pl Future Plan
Conclusion
Bagmati River Basin in Nepal
pper
Par
tU
pdl
e pa
rtM
ider
Part
Low
e
Total Catchment area : 3700 sq. km.
Total length of the river in Nepal : 220k220km
HPCIDBC
High Powered Committee for Integrated Development of Bagmati Civilization (HPCIDBC)(HPCIDBC) has the mandate:
Policy formulation and Planning for restoration of River system in the capital city, Kathmandu Valley
Construction of infrastructure to protect and restore the Bagmati River System
• Construction of sewer system • Construction of waste water
treatment plant• Construction of access road and
green beltgreen belt Defining the river alignment and width of
flow regime Monitor and regulate the activities along Monitor and regulate the activities along
the river side area.
Ultimate GoalUltimate GoalClean green and healthy river system inClean, green and healthy river system inKathmandu valley; that is full of life and valuedby allby all.
Bagmati River System in Kathmandu Valley
Bagmati River in KV (A few length)
7
Importance of Bagmati RiverK th d i th it lKathmandu is the capitalcity of Nepal, situated onthe banks of BagmatiRiver The length of
Pashupatinath Gokarneswor
River. The length ofBagmati River withinKathmandu Valley is 45km.km.
Bagmati River and itswatershed is veryimportant for Nepalimportant for Nepalstrategically, religiously,culturally, economically,socially &
Dhap Sunarighat
socially &environmentally. There are so many holy
places and cemeteriesplaces and cemeterieslocated in its bankenlisted in the WorldHeritage Sites.
Guheswori Gaurighat
Issues/Problems of Bagmati in Kathmandu
Decrease in river flow(tapping of almost all river water
Disposal of untreated waste water
Encroachments of river regimefor Water supply in KV) water regime
Solid waste dumping on river bank
sand extraction Haphazard urbanization and rapid populationbank and rapid population growth
Discharge of Bagmati RiverDischarge of Bagmati River Discharge of Bagmati River
28.7634.75
30
35
s
• High difference in dry and wet
12.5315.42
18.77
15
20
25ha
rge
Cum
ecsdry and wet
weather flow
1.98 3.44 3.22
0
5
10
Disc
h
• Water shortage in 0
GokarnaJorpati
Tilganga
Shankhamul
Babarmahal
Thapathali
Sundarighat
Khokama
Location
shortage in dry season
Dry Season Discharge m3/s Monsoon Discharge m3/s
Variation of BOD along Bagmati RiverVariation of BOD along Bagmati River600
400
500
300
400
OD
(mg/
L)
100
200BO
Sundarijal Gokarna Jorpati Guheshwori Tilganga Minbhawan Sankhamul Thapathali Teku Dovan Sundarighat0
100
Dec. 3 8 18 13 130 320 220 430 250Jan. 2 17 44 26 220 320 178 256 350 280Feb. 3 14 46 15 147 310 190 335 410 370Mar. 7 8 49 12 198 277 234 247 460 352
Water Quality of the Bagmati and its TributariesWater Quality of the Bagmati and its Tributaries
Bagmati Action Plan (BAP)
AA cccomprehensive framework document for the conservation of comprehensive framework document for the conservation of Bagmati River System.Bagmati River System.
B ti A ti PlBagmati Action Plan Bagmati Action Plan has been
developed by HPCIDBC & NTNCwith the financial support of UNEPand UNHABITATand UNHABITAT.
Bagmati Action Plan was approvedby the Government of Nepal iny pAugust 2009.
It envisages HPCIDBC as the leadgimplementing agency for riversystem environment improvement inKathmandu ValleyKathmandu Valley.
Zoning of the Kathmandu ValleyBagmati Action Plan …….
Zoning of the Kathmandu Valley
Natural Conservation
Rural
Zone 1
Zone 2 Rural
Peri Urban
Urban
Zone 2
Zone 3
Zone 4 Urban
Down Stream
Zone 4
Zone 5
Financial StatusFinancial Status
60 54
40
50
60
41
5446
40
29
20
3029
4 5 5 5 5
0
10
Year 1 Year 2 Year 3 Year 4 Year 5
3.8 4 4.5 5 5.5
Required BudgetMUSD
Expected AllocationMUSD
Activities Carried out by HPCIDBC
Conservation of water recharge areas, Dhap (origin of Bagmati)
Beforre
Noww
Construction of sewer lines green belts access roads along theActivities Carried out by HPCIDBC …………..
Construction of sewer lines, green belts, access roads along the river and river demarcation
Bagmati River Bank Protection work/River trainingActivities Carried out by HPCIDBC …………..
Bagmati River Bank Protection work/River training
Now Before
O ti f W t W t T t t Pl t t G h i
Activities Carried out by HPCIDBC …………..
Operation of Waste Water Treatment Plant at Guheswori
Capacity: 16.4 MLD
Drying Bed
Monthly average COD of influent and effluent of
1600
Monthly average COD of influent and effluent of the Waste Water Treatment Plant
1200
1400
1600
Influent
Effluent
800
1000
CO
D m
g/l
400
600
C
0
200
Apr-12 May-12 Jun-12 Jul-12 Aug-12 Sep-12
WWTP in Kathmandu
Gokarna)
Guheshwori
Madhyapur Thimi)
Bhaktapur
Balkumari 216 MLD
Sundarighat
397 MLD
Bhaktapur
NakhuChovar
Future Plan Rainwater harvesting, Ground water recharge and
livelihood development in buffer zone.Watershed Management activities in upper
Bagmati. (IUCN) Augmentation of river discharge by constructing
dam in upper Bagmati. (ADB/PPTA/8050)
Dam Height Storage Yield
Nagmati Dhap 18 m 0.7 mcm 24 l/s
Nagmati 60 m 5.0 mcm 230 l/s
Bagmati 50 m 3.4 mcm 200 l/s
Contour Photograph of proposed Dam siteFuture Plan …..
Contour Photograph of proposed Dam site
Road Map of Water Security in Bagmati Basin
Where we are? Where do we get there? Where do we want to go?
Water resource Develop & implement a Socially, environmentally development dangerously
unsustainable in the upper Watershed
p psustainable Water resource Mgt. system for deep GW use
y, y& economically sustainable WS & WWTP in the valley
Lane 1
River environment management almost out of
control
Develop and implement comprehensive River
Environment Mgt. system (Bagmati Action Plan)
Clean, green & healthy river system that if full of life & valued by allLane 2
control
Rapid and unsustainable urban
(Bagmati Action Plan)
Sustainable Water Resource development
Infrastructure in the lower basin and disaster Lane 3 development in
lower basin
Limited capacity and f
& Irrigation Water use Management
support a step wise
mgt. creating opportunities outside KV
Multi-stakeholders
Lane 3
resources from Governmental institution &
civil society to bring adequate response to basin
issues
approach for bldg. inter-sector collaboration, awareness & appr.
Decision
mechanisms for integrated management of water resources in the
basin
Lane 4
Conclusion
Bagmati River and its tributaries environmental situation has not deteriorated IRREVERSIBLY; it
b t dcan be regenerated• Implementing of IWRM.• Defining responsible sole organization for Bagmati• Defining responsible sole organization for Bagmati
Basin. • Developing the HPCIDBC as subsidiary RBO for p g y
Bagmati River.
www.bagmati.gov.np