Transcript

My Well, Our WaterCatalysing social responses to manage groundwater

`

Bengaluru – 2001 wardwise population Total population : 5.1 million

Bengaluru – 2011 wardwise populationTotal population : 8.4 million (65.2% growth)

Multi-sourcing inside the city (Borewells registered with BWSSB, used within the city too)

Subdivision C3

Groundwater for the “periphery”• The “periphery” now more populous• Groundwater primary source for the periphery• No single source of data for number of wells or volume of water

extracted• A 2005 ISEC study estimates 200,000 to 450,000 borewells in

Bangalore. • Same study estimated ~6500 • 3000 water Tankers belonging

to 100-120 water tanker companies

• Official Thyagaraja report pegs 500 + MLD, 400,000+ borewells

Atomised dispersed universe of actors

Does police & command“regulation” work?

…and we don’t even understand our Aquifers.

Can all of us citizens become a part of understanding this?

Living history of our aquifers:Can we connect back to our water heritage?,can’t we revive our sense of pride and ownership ?

Can we share the story of our wells and borewells ? Can this be the basis of understanding our aquifers ?

Will all of us then embrace “Aquifer management responses”?

Two stories : A lake and a layout

A heartening story of citizen drivenrevival and stewardship of the

Kaikondrahalli Lake

A private layout completely dependent on groundwater

demonstrates exemplary self- regulation solutions from source to

sink

Kaikondrahalli Lake Rainbow Drive Layout

The Yamalur Watershed• South east of the city, 8 micro-

watersheds. Dakshina Pinakini Basin

• Completely groundwater driven. No piped supply

• 33 Sq km, multiple wards + a panchayat (Halanayakanahalli panchayat)

• 15 lakes (in and out of BBMP)• Mixed land use – residential,

commercial, institutional & peri-urban

• Residential population: 117,844 in BBMP area & 5936 in panchayat area

Kaikondrahalli kere Rainbow drive

Rainbow Drive : A social response

Kaikondrahalli kere Rainbow drive

Rainbow Drive : Water management Source to sinkIntervention OutcomeCommunity borewells only Basis for community water management. Increasing block tariff (revised 4 times). Tariff penalizes HH’s with no Rainwater harvesting (RWH)

Demand plunges from 250 LPCD to around 150 LPCD.100 % RWH Compliance by households

300 Recharge wells across individual households and in community areas

All flooding problems gone !A recharge of around 87 ML / year.Shallower borewells yielding better…

Investment into Phytorid based Waste water treatment system (in place of old dysfunctional STP)

Reduction in monthly water expenses by Rs 80,000 – Rs 90,000/-. Far superior treated water quality

Investments to reuse waste water for gardening and irrigation

Further reduction in demand – still being quanitified

Sale of Treated waste water for urban agriculture

Revenue of Rs 25 / KL of sold waste water.

Can excess treated waste water be recharged safely ?

Returning it back to nature

Rainbow Drive : Impact

Kaikondrahalli kere Rainbow drive

33 Sq km or 33,000,000 sqm

Residential population125,000 people(+ floating population)

Land per residing person264 sqm / person

34 acres or 137360 sqm or

0.4% of land area

Residential population1200 (@full occupancy)

Land per person114.4 sqm/ person

Rainbow Drive : Impact

Kaikondrahalli kere Rainbow drive

33 Sq km or 33,000,000 sqm

Residential population125,000 people(+ floating population)

Land per residing person264 sqm / person

Rainfall (@ 800mm/year)72.3 MLD equivalent

Residential demand (@150 LPCD)18.75 MLD6844 ML/Year

34 acres or 137360 sqm or

0.4% of land area

Residential population1200 (@full occupancy)

Land per person114.4 sqm/ person

Reduction in demand100 LPCD

44 ML / Year

Annual Recharge88 ML/ Year

Freshwater made available132 ML / Year

Freshwater made availableBy 50 Rainbow Drives =Residential demand of the Water shed

50 Rainbow Drives = 20% land area

Rainbow Drive : Impact

Kaikondrahalli kere Rainbow drive

33 Sq km or 33,000,000 sqm

Residential population125,000 people(+ floating population)

Land per residing person264 sqm / person

Rainfall (@ 800mm/year)72.3 MLD equivalent

Residential demand (@150 LPCD)18.75 MLD6844 ML/Year

Lakes - 442 acres or 180 hectares or

0.5% of land area

Average recharge potential:10 Litres – 20 Liters / sqm /

day

Recharge:18 – 36 ML / Day

6570 ML/ year – 13140 ML/year

The First step : A collaborative initiative

Biome Environmental Trust A Thoughtful do tank

ACWADAM Water resources Think Tank, Action Research CentreExpert hydrogeologists

MAP UNITY Information, GIS to enable Citizen Problem Solving

Supported by

Wipro Technologies Ltd(Sustainability Initiative, Corporate Citizen)

This is work in progress…Lots of open questions.

Citizen Aquifer map : The process

• Stories & ready data• Observation sites• Investments in instruments (?)• Reading and sharing data

• Data cleaning &verification• Hydrological & hydrogeological

interpretation• Demystification of science

• Developing communication

• “Go to” platform. • Create sense of citizen ownership

• Compatibility with various froms of data gathering

• Open source tools for data gathering

• Facilitation for implementing responses

• Events, festivals, workshops• Peer-to-peer exchanges of best

practices• Engagement with Governance

Citizens :share the

story of their wells and

their water with the city

Virtual platform:

Visualisation & communication

platform Conversation & dialogue space

Citizens :Conversations

CommunicationEngagement with

Governance & Advocacy

Implement responses

Citizen Aquifer map : The process

• Stories & ready data• Observation sites• Investments in instruments (?)• Reading and sharing data

• Data cleaning &verification• Hydrological & hydrogeological

interpretation• Demystification of science

• Developing communication

• “Go to” platform. • Create sense of citizen ownership

• Compatibility with various froms of data gathering

• Open source tools for data gathering

• Facilitation for implementing responses

• Events, festivals, workshops• Peer-to-peer exchanges of best

practices• Engagement with Governance

Citizens :share the

story of their wells and

their water with the city

Virtual platform:

Visualisation & communication

platform Conversation & dialogue space

Citizens :Conversations

CommunicationEngagement with

Governance & Advocacy

Implement responses

OutputsOutcomes

Process is as important as outputs. It’s the process the drives the outcomes

Living history of our aquifers:Connecting citizens to water heritage,Instilling a sense of pride and ownership

Stakeholders, participation & dataTypes of Stakeholders processes of engagement

& nature of participation Contribution

RWAs, POAs individual households and individual citizens

Data from their own records, permission to install regular monitoring devices, one time measurements onsite. Engagement through events / workshops. Creation of “Citizen data Volunteers”.

Data & stories about demand, supply,

wells/borewells & waste water management

Skills such as documentation, video/photo &

communication design

Open source tools such as for data collection & mobile

apps

Schools & Educational institutions

Can there be education modules on groundwater involving measurements that get “embedded” for year-on-year data ?

Business campuses and their employees

Can leadership in transparency drive voluntary disclosure of data ?

Service providers (Borewell diggers, camera inspection etc)

One-on-one conversations, Events & workshops. They are citizens too.

Data from their service records, knowledge of whats happening in the region

Other researchers Knowledge partnering Research skills, other data and knowledge

Instrumentation and Monitoring

‘Hi-tech’ Water Level Sensors ‘Low-tech’ Water Level Sensors

Weather Station Handheld water quality sensors

Snapshots of the platform(under development)

Snapshots of the platform(under development)

Challenges : Just not short of them!

• Education of Citizens (eg: what is static water level?) – but that’s the whole point !

• Different kinds of data, some being complex measurements

• Identifying and capturing different forms of stake in groundwater

• “Transient” but significant water use : construction & dewatering

• Communication of research results – but that’s the whole point !

Outcomes A KSPCB Citizens Dialogue hosted by KSPCB

KSPCB visits a Phytorid based waste water treatment plantFirst application for recharging treated waste water applied.


Top Related