policy-practice of water management must change in... · but investment is notsustainable. take...
TRANSCRIPT
![Page 1: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/1.jpg)
Policy-practice of water management must change
Sunita Narain, Centre for Science and Environment, New Delhi
Building a water secure India
![Page 2: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/2.jpg)
Water crisis is India’s imperative. Determinant of our future.
Drought is becoming more or less permanent. Even in “good” rainfall years, there is water stress.
Even after flood there is a droughtMany cities get water once in 3 days.Dirty water is the largest killer of babies.
Why? Is this because of a lack of governmental
programmes? Or do we need a new way of managing water?
![Page 3: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/3.jpg)
Water-maths not adding up
Spent funds on water resource development.
But investment is not sustainable.
Take drinking waterWater maths: 200,000 problem villages in
1970s minus 200,000 problem villages in 2003 = 200,000 problem villages.
![Page 4: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/4.jpg)
Stress leads to conflict
Water skirmishes increasing: Flashpoints
ζ Tonkζ Sriganganagarζ Falla village in Jamnagar
Conflict within villageConflict between statesConflict between cities and villages
![Page 5: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/5.jpg)
Water wars. Or water peace……
….in our hands. In our minds to secure a new vision of water management.
Need change in approaches to water management;
Need political leadership on water;Need water to become everybody’s
concern.
![Page 6: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/6.jpg)
Water challenges
1. Increase supply of water – augment our resources;
2. Use the available water prudently –maximise its yield and minimise its waste;
3. Ensure the available water is not polluted and unsafe for drinking.
![Page 7: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/7.jpg)
Take water policy for irrigation:
Agriculture uses 70-80 per cent of available water. Have invested in surface irrigation systems – dams and
canalsBut:a. Rainfed areas still comprise more than 60 per cent of
India’s cultivated land. b. Groundwater, provides bulk of the irrigation. c. Small surface bodies have declined – ponds and
tanks. There is no recharge for groundwater;c. Wheat-rice use bulk of irrigated water. No value for
crop-per drop.
![Page 8: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/8.jpg)
What policy did not notice
SimultaneouslySurface irrigation projects suffered from cost overruns; cost
per ha increased; irrigation water use became more inefficient…..
SoEven as we invested in large surface irrigation, and
destroyed small irrigation systems of the people, groundwater use grew.
Even as government took control of water from communities, private ownership over water grew.
![Page 9: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/9.jpg)
Widening gap!
Groundwater use grows
0
5000
10000
15000
20000
25000
30000
35000
40000
1950-51 1960-61 1970-71 1980-81 1990-91 1999-00 2000-01
Year
Surface water
groundwater
![Page 10: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/10.jpg)
Groundwater overtakes surface water irrigation
32.1528.67
62.82
57.10
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
1950-51 1960-61 1970-71 1980-81 1990-91 1999-00 2000-01
Year
surface
groundwater
![Page 11: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/11.jpg)
Growing groundwater use
Source: IWMI, 2003
![Page 12: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/12.jpg)
Groundwater-rainwater banks
80 % of agricultural output today is dependent on groundwater.90 % of drinking water is dependent on groundwater. There are estimated 22 million well-users. Impossible to regulate.
Result:Groundwater levels declining. CGWB says 65% districts
overexploited. But underestimate. Nobody really knows local groundwater levels.
Remember:Groundwater a bank. Live off the interest we recharge annually.
Otherwise capital will be depleted.
![Page 13: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/13.jpg)
What do we do?
Most of it ‘rainfed’ groundwater: it is recharged by rain.
The lakes and ponds and tanks were the recharge systems for groundwater.
Rainwater harvesting a key. Hold rainwater when it falls.
Build the sponges for groundwater. Recharge individual wells.
![Page 14: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/14.jpg)
Recognise: water most fluid substance on earth
Out of 8760 hours in a year, most of the rain in India falls in just 100 hours.
The solution is capturing, storing, recharging and then using the rainwater over the dry periods.
Our ancestors understood this.
![Page 15: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/15.jpg)
Learning from traditions…
In 1997 we published Dying Wisdom:Rich learning of our traditions.Enormous diversity, technological sophistication. Each region had its own system to hold, capture rain. Zings, ahars, johads, tankas, phad…..
![Page 16: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/16.jpg)
Traditional arithmetic
Indians learnt this water arithmetic as far back as 5,000 years. The city of Dholavira of the Indus Valley Civilisation was harvesting runoff in the dry Thar desert.
![Page 17: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/17.jpg)
Catch water where it fallsA water harvesting structure
![Page 18: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/18.jpg)
…tanks in hill forts in Rajasthan and cities like Jodhpur
…to integrated surface water and groundwater
harvesting systems in cities…
(Jodhpur, Rajasthan)
![Page 19: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/19.jpg)
Cascade tanks in the district of Ramanathapuram in Tamil Nadu
![Page 20: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/20.jpg)
Enormous potential
100 mm rain falling on 1 ha of land means 1 million litres of water.
There is no village in India which cannot meet its drinking water needs through its own rainwater endowment.
![Page 21: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/21.jpg)
Five years of drought.Agriculture in Jaipur-Tonkdistrict.
![Page 22: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/22.jpg)
![Page 23: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/23.jpg)
100 wells..water at 50 feet..note 5 years of drought…no canal irrigation…no government
![Page 24: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/24.jpg)
How? By painstakingly harvesting every drop of water for past 7-10 years
KeyVillage Laporiya.Green: catchmentBlue: tanksRest: agriculture
![Page 25: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/25.jpg)
Need old-new culture of water
There is never enough water. Cherrapunji in India gets 11,000-14,000 mm of
rain. Water stressed. Jaisalmer get 100 mm of rain. No recorded history
of evacuation.
Drought not about scarcity of water. But about relationship of society with water.
Need culture of prudence and careful use.
![Page 26: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/26.jpg)
But water is not about water…..
….about decentralisation.
All watershed-pond-tank projects look at water. Not the land from where water will be harvested.
All watershed-pond-tank projects look at bureaucracies. Not the people who will manage
Need new approaches:Involve panchayats in water managementGive rights over watershed to panchayats-gram
sabha.
![Page 27: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/27.jpg)
Sukhomajri Village 1985
Degraded watershed of a small reservoir built by the villagers
![Page 28: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/28.jpg)
Sukhomajri Village 1998
Well protected catchment of the village reservoir managed by villagers
![Page 29: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/29.jpg)
Sukhomajri Village 2004
Forest of Acacia catechu in the catchment: estimated value of Rs. 90 crore
But under law they cannot cut. It is forest department property
![Page 30: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/30.jpg)
What we suggest:
1. Launch a national water conservation programme; 2. Make water central to employment guarantee
programme; 3. Put water assets in control of panchayats-gram sabha. 4. Make coordination-agency for common land at village
level. Catchments of waterbodies – forest or revenue -- must be under this agency.
5. Launch a million well recharge programme. Provide grant or rebate in interest for well recharge-farm pond programme.
![Page 31: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/31.jpg)
![Page 32: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/32.jpg)
Can we afford the modern water economy?
Our problem: becoming modern but remaining traditional
![Page 33: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/33.jpg)
Urban water crisis: frightening. Will put pressure on rural water
The gap between demand and supply increasing. Powerful cities. Can get water.
Chennai water from 200 km ;Bangalore pumps from 95 km (Cauvery)Delhi will get water from Tehri dam. Hyderabad from 100 km (Manjira+Krishna)
Smaller towns even more desperate situation. Each summer it is getting worse.
![Page 34: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/34.jpg)
Well Fields
Reservoirs
Coastal Aquifers
Adyar River
Cooum River
Source : Chennai Metro Water Supply & Sewerage Board
![Page 35: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/35.jpg)
Political economy of water
Cities do not plan for water recharge. Every monsoon leads to floods (Mumbai++)
Cities are water wasteful. Cities are water inequitous. Parts have
more. Most have less.
![Page 36: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/36.jpg)
3 % gets 11% water supplied
70 % get less than 5 per cent of total water supplied
Who uses more water, generates more waste.
3% population
![Page 37: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/37.jpg)
DELHI♣ Per capita availability 211 lpcd
♣ 2011 Master plan targets 363 lpcd
More water is not the answer
Need answers that are different. Less wasteful.
![Page 38: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/38.jpg)
Dipping watertable
Use groundwater. Do not plan for recharge
![Page 39: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/39.jpg)
Waterbodies are sponges. To hold water, recharge groundwater. Dirty. Dead. Forgotten. Builders lobby
![Page 40: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/40.jpg)
World is learning from our traditionsGermany: water collected used in toilets.
![Page 41: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/41.jpg)
Singapore: catches water for needs
Singapore harvests rain. Highest population density in the world
About 50 per cent of the land area is used as catchment for water.
In Changi international airport runoff is collected from rooftops and runways. Treated and used for fire fighting and toilet flushing. Annual savings amount to US $ 243,000
![Page 42: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/42.jpg)
Has to be done. Many such examples today…RashtrapatiBhawan..must be mandatory in every city, every house
![Page 43: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/43.jpg)
To replicate these models: Strict LEGISLATION required; Relearning required. Forgotten wisdom.
NAME OF THE CITY
EXISTING LEGISLATION STATUS OF IMPLEMENTATION
NEW DELHI (ORDERS OF DELHI GOVERN-MENT AS WELL AS THE CGWB)
θ NEW DEVELOPMENTS IN A PLOT AREA MORE THAN 1000 SQUARE METRES
θ NEW BUILDINGS WITH AN AREA OF 100 SQM OR MORE
θ ALL INSTITUTIONS AND RESIDENTIAL COLONIES IN NOTIFIED AREAS
θ ALL THE BUILDINGS HAVING A TUBEWELL
AVERAGE (DEADLINE OF CGWB EXPIRED LAST YEAR. BUT NO ACTION AGAINST DEFAULTERS)
![Page 44: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/44.jpg)
NAME OF THE CITY
EXISTING LEGISLATION STATUS OF IMPLEMENTATION
INDORE
θ NEW BUILDINGS WITH AN AREA OF 250 SQM OR MORE
θ A REBATE OF 6 PER CENT ON PROPERTY TAX FOR IMPLEMENTING RWH SYSTEMS
SOME IMPLEMENTATION
HYDERABAD θ All NEW CONSTRUCTIONS WITH AN AREA MORE THAN 300 SQM
θ TENTATIVE DEADLINE WAS JUNE 2001
POOR
RAJASTHAN θ RAINWATER HARVESTING IS
MANDATORY FOR ALL PUBLIC ESTABLISHMENTS AND ALL PROPERTIES IN PLOTS COVERING MORE THAN 500 SQM IN URBAN AREAS
θ
Required legislation: will need more..
![Page 45: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/45.jpg)
N A M E O F T H E C I T Y
E X I S T I N G L E G I S L A T I O N S T A T U S O F I M P L E M E N T AT I O N
C H E N N A I
R W H M A D E M A N D A T O R Y I N T H R E E S T O R I E D B U I L D I N G I R R E S P E C T I V E O F R O O F T O P A R E A A L L N E W W A T E R A N D S E W E R C O N N E C T I O N S T O B E P R O V I D E D A F T E R T H E I M P L E M E N T A T I O N O F R W H S Y S T E M S
G O O D
M U M B A I θ SIN C E O C T O B E R 1 , 2 0 0 2 , R W H M A D E M A N D A T O R Y I N A L L N E W C O N S T R U C T I O N S C O M I N G U P I N A P L O T O F M O R E T H A N 1 , 0 0 0 S Q M
θ T H E B R I H A N M U M B A I M U N I C I P A L C O R P O R A T I O N H A S M A D E W A T E R R E C Y C L I N G A N D T R E A T M E N T M A N D A T O R Y F O R A L L H O T E L S , I N D U S T R I E S A N D H O U S I N G S O C I E T I E S
-
H A R Y A N A A L L N E W B U I L D I N G S W I T H A R O O F A R E A G R E A T E R T H A N O R E Q U A L T O 1 0 0 S Q M
Rainwater harvesting: needs will
![Page 46: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/46.jpg)
Techniques.....
![Page 47: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/47.jpg)
Potential…
0.00-0.20Untreated ground
catchments
0.60 –0.80Paved areas
0.80 –0.90Roof catchments
Runoff coefficient
Type of catchment
An example
A=100 m2
R = 100 millimeters
C=0.80
Rainfall endowment
=10,000 Litres
Rainwater harvesting potential = 8,000 liters
![Page 48: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/48.jpg)
Quality control
Fig. 3.17 from MANUAL
Keep catchments cleanAvoid polluted runoff from
entering into the recharge structures
Do first flushingMake available a layer of
soil beneath the recharge structure to ensure filtration
![Page 49: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/49.jpg)
Jamia Hamdard University
![Page 50: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/50.jpg)
Jamia Hamdard University
Total rooftop and surface area – 3,15,380 square meters (sq m)
Total volume of water available from rainfall – 57,800 m3 or 5,78,00,000 litres (35 per cent of total rainwater harvesting potential)
![Page 51: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/51.jpg)
Hamdard girls hostel
June 2002
April 2001
-60
-50
-40
-30
-20
-10
0
![Page 52: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/52.jpg)
Water literacy in cities
Create rain-centres in every city
Train engineers-plumbers in our traditions.
Restore tanks-ponds. No builder allowed to
destroy tanks.
![Page 53: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/53.jpg)
The quality challenge: sewage
Sewage systems do not exist in our cities – waste pollutes the ground or pollutes the river and stream
But also:Sewage systems exist but treatment does not and
sewage still pollutes rivers, streamsBut also:Sewage systems exist and treatment exists but there
is no money to run it or sewage is not connected to plant, sewage still pollutes rivers and streams..
Sewage-excreta biggest challenge for modern India
![Page 54: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/54.jpg)
Quality-health challenge
Tremendous costs to health of poor. Dirty water still the biggest killer in India. Study estimates 2.06 million deaths of children in
1999 in India. 90% in poor rural households. If all household had clean fuel, private (clean) water, private toilet would reduce infant child mortality by roughly 1 million (half the deaths).Criminal. Shameful.
![Page 55: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/55.jpg)
Sources: Peter H Gleick, The World’s Water, 2000-2001, p11; Abstract Volume, First International Conference on Ecological Sanitation, November 5-8, 2001, p7;`Status of water supply and waste water generation, collection, treatment and disposal in metrocities (1994-95), CPCB, August 1997, p32-33; Anon July 1999, Drinking water, sanitation and hygiene in India, NSSO, p40
Without treatment is the second-largest killer
![Page 56: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/56.jpg)
The urban-rural divide: the urban-water divide
Sources: Peter H Gleick, The World’s Water, 2000-2001, p11; Abstract Volume, First International Conference on Ecological Sanitation, November 5-8, 2001, p7;`Status of water supply and waste water generation, collection, treatment and disposal in metrocities (1994-95), CPCB, August 1997, p32-33; Anon July 1999, Drinking water, sanitation and hygiene in India, NSSO, p40
![Page 57: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/57.jpg)
Sewage: technology cannot afford
Only 20 per cent of the water is used for drinking, cooking;
Over 60 per cent is used for bathing, washing and flushing down the toilet. Important that our water toilets are still 10-12 litres per each pull of the chain.
Literally, water down the drain….80% potable water ends up as waste-water
![Page 58: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/58.jpg)
Sewage systems cost the earth
We do not pay the cost of cleaning and distributing water.
Sewage and treatment costs are estimated to be 5 times higher than cost of providing water.
Who will pay?
![Page 59: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/59.jpg)
Political economy of defecation
More water-more sewageWater used as carrierWater used as disposal point
Cheap water, unpaid sewage costs and then water treatment costs.
Only 7 per cent sewage treated in the country.
In this situation: rich are subsidised to defecate.
![Page 60: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/60.jpg)
22 Km stretch in Delhi contributes 70 per cent of the total pollution load of the river.
![Page 61: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/61.jpg)
Water pollution: Yamuna a dirty drain of Delhi (BOD levels)
0
10
20
30
40
50
60
70
80
90
100
Jan
-02
Feb
-02
Mar
-02
Ap
r-02
May
-02
Jun
-02
Jul-
02
Au
g-0
2
Sep
-02
Oct
-02
No
v-02
Dec
-02
Jan
-03
Feb
-03
Mar
-03
Ap
r-03
May
-03
Jun
-03
Jul-
03
Au
g-0
3
Sep
-03
Oct
-03
No
v-03
Dec
-03
Jan
-04
Months
Yamuna at palla
Yamuna river at Okhla after meeetingShahdara Drain
Yamuna river at Nizamuddin
Standard value
![Page 62: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/62.jpg)
Dissolved Oxygen levels in Yamuna at various points
0
2
4
6
8
10
12
14
Jan-
06
Feb
-06
Mar
-06
Apr
-06
May
-06
Jun-
06
Jul-0
6
Aug
-06
Sep
-06
Oct
-06
Nov
-06
Dec
-06
Jan-
07
Feb
-07
Mar
-07
Apr
-07
May
-07
Jun-
07
Jul-0
7
Aug
-07
Sep
-07
Oct
-07
Nov
-07
Dec
-07
Jan-
08
month
Val
ue
in m
g/l
Yamuna at palla
Yamuna river at Okhla after meeetingShahdara Drain
Yamuna river at Nizamuddin
Standard value
DO levels: Yamuna is dead.
![Page 63: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/63.jpg)
![Page 64: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/64.jpg)
Delhi is not unique:All stretches are dirtier today
But at a huge cost!
1996 2003
![Page 65: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/65.jpg)
Environmental imperative: national toilet mission
Challenge to scienceFlush toilets that do not destroy the
country’s hydrological systems;Flush toilets that do not destroy the world’s
nitrogen cycle;Flush toilets that are hygienic and equitous.
![Page 66: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/66.jpg)
Water contamination growing: Arsenic-fluoride increasing in country
Cant find answers to arsenic-fluoride till we find answers to contamination of water.
Important to understand this link. Still not part of arsenic-mitigation strategies.
![Page 67: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/67.jpg)
Dinanath came to AIIMS to confirm his cancer.
His doctor called us. Wanted to know, why her patient, from Ballia, would suffer from arsenic poisoning. His blood confirmed 34.4 ppb of arsenic. Reference dose is 1-4 ppb.
Why? We wanted to know.
![Page 68: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/68.jpg)
What we found has shocked us.
Found visible signs of arsenic toxicity.
Found people suffering. All asked:
why? Tell us if my well is poison. Tell us if I should drink the water.
![Page 69: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/69.jpg)
What is extent of arsenic?
Is this correct?
What do we know?
![Page 70: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/70.jpg)
Water management options
Problem is that we have contaminated surface water with sewage. Leads to disease.
So we have increased dependence on groundwater. Going deeper and deeper. Finding arsenic-fluoride.
Answers:Clean up ponds, tanks. Put filters to clean microbial
contamination. Rainwater harvesting to recharge aquifers so that we do
not dig so deep.
![Page 71: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/71.jpg)
Challenge of new contaminants
Cannot deal with old problem: sewage. Now new toxins – pesticides, heavy metals..
Toxic and deadly load in our bodies. The problem is that we are rich enough to
use; poor when it comes to clean up.
![Page 72: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/72.jpg)
Pesticides in bottled water
![Page 73: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/73.jpg)
Found pesticides in groundwater
Letters, emails, messages asking: WHAT ABOUT SOFT DRINKS? They use the same water.
![Page 74: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/74.jpg)
Soft drinks: what did we find?
Same pesticides as bottled water:DDT, lindane, chlorpyrifos, malathion. Same level as bottled water. But poorer (in fact non-existent) regulations compared to bottled water
Centre for Science and Environment
30 t imes
36 t imes 36.4 t imes
AverageCoca -Cola India
AveragePepsiCo India
AverageBott led water,
all brands
![Page 75: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/75.jpg)
“We are safe: Aamir drinks it”
![Page 76: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/76.jpg)
We want…
Standards for pesticide residues in soft drinks. Companies still fighting….powerful…
We want standards for quality of drinking water. Remember: expensive to to clean up after
contamination. Need to regulate now.
![Page 77: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/77.jpg)
No legal rights to clean water
55 years after Independence we do not have ‘right’ to ‘clean’ water.
Why? Because standards for what is “clean” water are not legal.
Then we need a law that enforces standards so that agencies supplying water are held responsible. Citizens then have the “right”to clean water.
![Page 78: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/78.jpg)
In India..
The Central Public Health and Environmental Engineering Organisation (CPHEEO) under the Union ministry of urban development and poverty alleviation sets guidelines for drinking water quality.
BIS has also set standards. But these are “voluntary”.
These are “guidelines”. Municipalities and other agencies and “expected’ to follow these. But there is no requirement that they must.
![Page 79: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/79.jpg)
Municipal acts therefore are vague.
Section 234 of the Calcutta Municipal Corporation Act, 1980 also says, “as far as possible”.
Tripura Municipality Act says it will “try to supply”.
Rajasthan does not even say it will supply in all times.
![Page 80: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/80.jpg)
Safe drinking waterNo law
1996; parliamentary committee on subordinate legislation says, water should be brought under “food” as the agency responsible for supplying drinking water to the public has to ensure purity and the statute should bind it to do so.”
But ministry of urban development says no. It would mean that a “legal commitment to adhere to standards”.
![Page 81: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/81.jpg)
We want:
Biggest killer of babies in India. Death and diseases because of dirty water shame
India…We say we are too poor to afford clean water.Rich pay peanuts for municipal water they
consume. Drink bottled water. This industry uses free water. Charges more than
milk. We pay.Poor do not get municipal water. Pay more. Pay
with their health. No options.Unacceptable.
![Page 82: Policy-practice of water management must change in... · But investment is notsustainable. Take drinking water Water maths: 200,000 problem villages in 1970s minus 200,000 problem](https://reader033.vdocuments.us/reader033/viewer/2022050108/5f45e66bc11df3683e5b8ac5/html5/thumbnails/82.jpg)
Water reform needs political interest
Cannot happen without you.
Water is about life. It is about health. It is about livelihoods. It is about wealth.
Water has to become everybody’s concern. Have to build water-prudent society.
Can only happen with political leadership.