Bangalore Geographical Setting
• City on a ridge line between 860 to 920 metres above
MSL

• City falls into 2 river basin...
Cauverycolour is the Arkavathy basin, now
Red river basin –
Bangalore

drying
Water Sources City
Water Sources for Bangalore for Bangalore
TRANSMISSION PIPE
LINE INSIDE CITY

Bangalore

5 No’s
TRANSMI...
Population Growth

Population growth
Bangalore Water – Some Firsts
• First city water utility to be set up in India BWSSB 1964
• First to use an Increasing Blo...
The Bangalore Context
• High price of water – both in energy and cost.
• Physical limit to availability 1350 MLD
• Rapid e...
Consequence of Over Exploitation of Ground Water
I. Steep Decline in Water levels
2. Decreased Yield in Bore wells
3. Fail...
Bangalore- The culture of the well
Schematic of Roof top RWH
The Slogan- Every Roof A Catchment
Pattern of RWH Programme
 Direct use of harvested rain water through
sumps
- receiving and delivery piping system
- filte...
Rain Barrel: Easiest way to begin RWH
Recharging an open well
Action to Implement Rain Water Harvesting

•

Specifications

•

Legislative backing Training Programme

•

Mass Awareness...
Implementation of RWH – Initiation by BWSSB

 Specifications
- Storage or recharge to be created for
- Roof area - 20 lit...
Initiation by BWSSB
 55 Training programmes in association with KSCST.
 1600 BWSSB Plumbers, individuals trained
 70 Pu...
A file photo of School Children Jatha
60 Days Rain Water Harvesting 13th Abhiyana
programme on 14-06-2010
9th Popular Lectures and Success Stories on RWH
50th RWH Training programme conducted for
Plumbers/Contractors/Others on 12-03-2013.
Learning skills have been imparted to plumbers

Muniappa, the well digger
who has dug more than
2000 recharge wells
Demonstration units
• Recharge well in the channel or off the channel
• Arrangements to remove silt and leaves before wate...
Implementation Of RWH in BWSSB Office
Functions of Helpdesk
• Technical details to the visitors and to public via helpline
• Idea is to implement RWH in Scienti...
Status of category wise RWH implemented Structure
Category of Building
Domestic Buildings

Commercial Buildings
Partially ...
Rainwater Harvesting Theme Park
Rainwater Harvesting Theme Park
Aerial View of Theme Park
Sir M.Visvesvaraya RWH Theme Park Visitors
March 2011 to October
2013

During
November-13

Total No of Publics

5061

44

...
RWH Theme Park features

Porous
Pathways

Green
stormwater
drains
Storage Structures

Storage

Ground
Recharge
Wall mounted filters

Popup

Referb india

Rainy

Leaf Slide

Global Resource

FFL & Sand bed
Dr. A. Ravindra, IAS, Ex Chief Secretary, Advisor to the Chief
Minister visited the park on 13-3-2012
School children being given a know how on Rain
Water Harvesting at theme park
Foreign delegates from Bangladesh, Australia, France, Ethiopia,
Paris on 19-01-2012 at the park with helpdesk engineer
Results & Findings
• RWH implemented 51000
– Recharging ground 86%
– Storage and use 14%

• Evaluation of 1000 RWH systems...
Impact of RWH on
• Water conservation and recharge
• Spawned a new industry
• Livelihoods
- Jobs created for plumbers, sem...
Responsibility
• Public have realised value of RWH system for
their needs which reduces dependency on
BWSSB and convention...
Replicability of Programme
 Bangalore is one of the important cities where water
problem has escalated because of populat...
Sustainability
• Storing water for future productive views
• Sustainability of Ground Water Resources
through RWH and Arti...
Uniqueness of BWSSB’s RWH
•
•
•
•
•

Technical specifications, simple regulations
Legislative support
Theme park, first of...
Sri DIP Gogoi M.P., Hon’ble Chairman of Parliamentary
Standing Committee on “Water Resources”, visited Park on
03-02-2013 ...
Group photo of Parliamentary Committee on “Water
Resources”, with BWSSB Officials and Central Ground
Water Board Officials...
Photo : Norma Angelica Hernandez Bernal
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Rainwater harvesting efforts in Bangalore_BWSSB_2013

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The presentation highlights the various initiatives of BWSSB in promoting RWH in Bangalore. These include rain barrels, recharging an open well and other initiations.

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Rainwater harvesting efforts in Bangalore_BWSSB_2013

  1. 1. Bangalore Geographical Setting • City on a ridge line between 860 to 920 metres above MSL • City falls into 2 river basins – Cauvery and Palar • Allocation from Cauvery is limited and therefore a physical limit to water that can be drawn from river. • River Arkavathy – – First source now almost dry and the reservoirs (Hessarghatta and T.G.Halli) on it no longer reliable. – 35 + 135 = 170 MLD no longer available to Bangalore.
  2. 2. Cauverycolour is the Arkavathy basin, now Red river basin – Bangalore drying
  3. 3. Water Sources City Water Sources for Bangalore for Bangalore TRANSMISSION PIPE LINE INSIDE CITY Bangalore 5 No’s TRANSMISSION PIPE LINE FROM WTP
  4. 4. Population Growth Population growth
  5. 5. Bangalore Water – Some Firsts • First city water utility to be set up in India BWSSB 1964 • First to use an Increasing Block Tariff and also a propoor approach • One of the highest heads & distance to pump water 100 Kms & 500 M. • Embodied energy 1.80 units per KL of water to pump. • One of the costliest waters in India. Production cost Rs 32/KL • Now is the notified authority for the city as part of creation of the Groundwater Authority in the State.
  6. 6. The Bangalore Context • High price of water – both in energy and cost. • Physical limit to availability 1350 MLD • Rapid expansion of city 3 million people added between 2001 and 2011 (present population > 9 million) • Fast growing non-domestic and industrial demand from mainly service and manufacturing sectors • Rain fall pattern well distributed, ideal for RWH – Average Annual - 970mm – Minimum/Maximum in a month - 2.70/195 mm
  7. 7. Consequence of Over Exploitation of Ground Water I. Steep Decline in Water levels 2. Decreased Yield in Bore wells 3. Failure of Bore wells. 4. Ground Water Quality Deterioration
  8. 8. Bangalore- The culture of the well
  9. 9. Schematic of Roof top RWH
  10. 10. The Slogan- Every Roof A Catchment
  11. 11. Pattern of RWH Programme  Direct use of harvested rain water through sumps - receiving and delivery piping system - filters - sump for collecting rain water - pumping system  Artificial recharge to groundwater through scientifically planned structure
  12. 12. Rain Barrel: Easiest way to begin RWH
  13. 13. Recharging an open well
  14. 14. Action to Implement Rain Water Harvesting • Specifications • Legislative backing Training Programme • Mass Awareness Programme • Logistical support and Help desk • Rain Water Harvesting Theme Park
  15. 15. Implementation of RWH – Initiation by BWSSB  Specifications - Storage or recharge to be created for - Roof area - 20 litres per square metre - Paved area -10 litres per square metre - Recharge well to be a minimum depth of 3 metres  Amendment to BWSSB Act by adding para 72-A vide Gazette notification 2009 making RWH mandatory.  Formation of HELP DESK in with association of KSCST.  Mass Awareness Programmes with publicity campaign  Training Programmes
  16. 16. Initiation by BWSSB  55 Training programmes in association with KSCST.  1600 BWSSB Plumbers, individuals trained  70 Public Awareness & Abhiyana programmes conducted  Publicity & promotional materials distributed.  T V Programmes & Radio Programmes conducted  RWH system initiated on all Govt. and BWSSB Buildings including Residences of CM and other dignitaries  More than 51,000 Houses implemented RWH
  17. 17. A file photo of School Children Jatha
  18. 18. 60 Days Rain Water Harvesting 13th Abhiyana programme on 14-06-2010
  19. 19. 9th Popular Lectures and Success Stories on RWH
  20. 20. 50th RWH Training programme conducted for Plumbers/Contractors/Others on 12-03-2013.
  21. 21. Learning skills have been imparted to plumbers Muniappa, the well digger who has dug more than 2000 recharge wells
  22. 22. Demonstration units • Recharge well in the channel or off the channel • Arrangements to remove silt and leaves before water enters recharge well • Rate of recharge decide on the number of recharge wells necessary for the catchment Open wells and borewells are being revived
  23. 23. Implementation Of RWH in BWSSB Office
  24. 24. Functions of Helpdesk • Technical details to the visitors and to public via helpline • Idea is to implement RWH in Scientific way and similar manner throughout city. • Collecting Feed back/opinion from Visitors about the technical details provided • Conducting Training programme to Engineers, Architects, contractors, plumbers etc,… • Create awareness among public and school & college students • Conducting Orientation programme to Officials.
  25. 25. Status of category wise RWH implemented Structure Category of Building Domestic Buildings Commercial Buildings Partially commercial Building Industries Apartments Commercial High rise Building Others Government Building Total Recharging ground 33700 5863 2130 87 5078 172 138 125 45153 Storage & Use 3879 860 368 27 612 51 23 55 5875
  26. 26. Rainwater Harvesting Theme Park
  27. 27. Rainwater Harvesting Theme Park
  28. 28. Aerial View of Theme Park
  29. 29. Sir M.Visvesvaraya RWH Theme Park Visitors March 2011 to October 2013 During November-13 Total No of Publics 5061 44 Total No of VIPs 1226 20 48 0 Total no of Press Reporter Schools College No of Schools 146 No of Students No of College 4 8668 57 No of Students 177 1 1342 40 1045 3 Feedback Information 81 0 No. of other Govt. Officials 213 Total No Telephone calls Total no of Visitors Grand Total: from Mar-11 to Nov-13 0 16639 281 16920 Total visitors from Mar-2011 to Nov-2013—16,920
  30. 30. RWH Theme Park features Porous Pathways Green stormwater drains
  31. 31. Storage Structures Storage Ground Recharge
  32. 32. Wall mounted filters Popup Referb india Rainy Leaf Slide Global Resource FFL & Sand bed
  33. 33. Dr. A. Ravindra, IAS, Ex Chief Secretary, Advisor to the Chief Minister visited the park on 13-3-2012
  34. 34. School children being given a know how on Rain Water Harvesting at theme park
  35. 35. Foreign delegates from Bangladesh, Australia, France, Ethiopia, Paris on 19-01-2012 at the park with helpdesk engineer
  36. 36. Results & Findings • RWH implemented 51000 – Recharging ground 86% – Storage and use 14% • Evaluation of 1000 RWH systems by CSD during January 2012. – About 90% installations are as per BWSSB guidelines – Remaining 10% for space constrain could not meet as per guidelines
  37. 37. Impact of RWH on • Water conservation and recharge • Spawned a new industry • Livelihoods - Jobs created for plumbers, semi skilled workers and well diggers • Innovation – Spawned design of filters and first rain separators – More than 50 filter options are now available creating an industry
  38. 38. Responsibility • Public have realised value of RWH system for their needs which reduces dependency on BWSSB and conventional sources • People have put in their monies to harvest rain creating a sense of ownership which will ensure that they take care of their systems • Public have understood the value of water
  39. 39. Replicability of Programme  Bangalore is one of the important cities where water problem has escalated because of population explosion and Growth.  Many cities in country are facing similar problems  Bye-laws are simplest and most likely to be taken up in all the 213 towns of Karnataka shortly  Rainwater theme park is the first of its kind in country and will likely to be replicated in many cities as per the Parliamentary standing Committee recommendation  Programme implemented by BWSSB will go a long way in serving as a model for other cities in the state and the country
  40. 40. Sustainability • Storing water for future productive views • Sustainability of Ground Water Resources through RWH and Artificial Recharge • Less dependency on stakeholder Water supply • Reduce stress on surface water • Availability of water (Water Vende) • Cost of harvested rain water < Re. 1/KL. • Simple and long lasting system. • Improve Ground water Quality
  41. 41. Uniqueness of BWSSB’s RWH • • • • • Technical specifications, simple regulations Legislative support Theme park, first of its kind People involvement Integrated, cohesive system, easy to understand
  42. 42. Sri DIP Gogoi M.P., Hon’ble Chairman of Parliamentary Standing Committee on “Water Resources”, visited Park on 03-02-2013 & writing his opinion about the Park
  43. 43. Group photo of Parliamentary Committee on “Water Resources”, with BWSSB Officials and Central Ground Water Board Officials on 03-02-2013
  44. 44. Photo : Norma Angelica Hernandez Bernal

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