water tariff in apartment communities
DESCRIPTION
Presented by Avinash Krishnamurthy of Biome Solutions in The Water Workshop for Apartment Communities - 25-Feb-2012TRANSCRIPT
The Wishing WellAs presented in Water Workshop organized by
ApartmentADDA.com
Avinash Krishnamurthy([email protected])
Biome Environmental Trust
Rainwater Club
Biome Environmental solutions Pvt Ltd
So Why Tariffs for water ?
Integral to managing QuantityQuality
Tariffs – Single most important economic tool
Cost Account for Water Separately (as for energy or any other infrastructure
service)
Don’t bundle it into a single maintenance cost – you lose track of what’s happening
What cannot be measured cannot be managed
Metering Source Metering Distribution
Metering ConsumptionMetering Waste
- Water Balance –- Embedded Energy in Water -
Metering a Borewell – Electricity and WaterKnowing your numbers
Every household connection METERED !!!!
An Ecological Framework : Water Balance
Capital Infrastructure Costs (The borewells, pipes, meters etc)
Typically already paid up forOR
Raise explicitly monies for implementing new infrastructure
Production cost of waterCost component Example expenses Example Sources of data
Cost of maintaining source groundwater management and borewell maintenance
Cost accounting monies spent on these (Bills)
Cost of pumping from source Borewell / well pumping costs Electricity bills
Cost of treating source quality to consumption quality
RO system for TDS management
Electricity and “Outsourcing” bills
Cost of distribution pumping and distribution maintenance
Hydro pneumatic pumping, valves, pipes maintenance
Electricity and maintenance bills
Cost of Conveying waste Sanitation pipes maintenance Cost accounting monies spent on these (Bills)
Cost of Waste Water treatment
STP running costs Electricity and “Outsourcing” bills
Cost of Treated Waste water disposal
“Pumps to throw it out” / Wells to recharge treated waste water to ground / reuse for gardening
Cost accounting monies spent on these (Bills) and Electricity bills
Ecological Cost of Water : Cost of Returning it to nature at the same quality you extracted it
1. Go to Indiawaterportal.org2. Search for “When Pigs fly : Citizens at the centre of integrated urban water management”3. Download
A. Production cost of water toolB. Ecological framework
Electricity consumption for Borewells
0100020003000400050006000700080009000
April08
May 08
June 08
July08
Aug08
Sep08
Oct08
Nov08
Dec08
Jan09
Feb09
Month of Year
Uni
ts o
f Ele
ctric
ity
cons
umed
8SWP 5329
8SWP 5799
8SWP 6685
8SWP 6686
8SP 165
8SP 164
Totals
Total Electricity and Rainfall
0
2000
4000
6000
8000
10000
Month of the year
Units
per
mon
th
0
50
100
150
200
250
Rain
fall
per
mon
th
in m
m
Units of ElectricityConsumed
Rainfall
Per KL units consumed and Rainfall
00.20.40.60.8
11.21.41.6
April08
May 08
June08
July08
Aug08
Sep08
Oct08
Nov08
Dec08
Jan09
Feb09
Month of the year
Units
per
mon
th
0
50
100
150
200
250
Rain
fall
per m
onth
in
mm per KL units
Rainfall
Principles for Tariff SettingFinancial sustainability• Cover all operating costs (pumping bills,salaries etc) –
assuming equity issues not there• Sinking fund for infrastructure maintenanceWater supply security• Water supply continuity fund (digging new borewells)Ecological security and responsibility• Source management / Sustainability fund (eg: recharge
and maintenance of recharge, future investments for reuse etc)
Principles for Tariff SettingDemand Management (most important ?)• Increasing block Tariff• Incentivize conservative use of water • Penalize wasteful use
Let the Water Bill tell the story – its more than numbers
Demand ManagementControl Lever : Water Tariffs
Don’t bundle Water charges into other charges
A Water Bill can be a communication tool (Make your bill tell the story)
Understand Production cost of water
Can an increasing block tariff be imposed ?
Are there mechanisms to penalise wasteful use
Are there mechanisms to incentivise conservative use
Consumption slab
Tariff
0 – 10 KL Rs 10/-
10 – 20 KL Rs 15/-
20 – 30 KL Rs 25/-
30 – 40 KL Rs 40/-
> 40 KL Rs 60/-
Demand ManagementWater Literate means Water responsible
Engage with the communityCommunicate water issues, get the kids involved
Educate CommunityProvide Data and Information
Voices for Water !!!!
Water Efficient DevicesTaps : Flow rate ? 75lpm or 2 to 10 lpm
Showers : Flow rate ? 30lpm or 10 to 12 lpm (Bucket Bath ?)Water closets : 10/20 litres or 6/3 litre dual flush
Washing m/c : 150 litres or 70-100 litres, Front loading not top loadingBath Tubs : DON’T USE THEM (Bucket Bath ?)
Biome Environmental Trust
• Urban water and Groundwater research• Engaging with Schools• Urban and Rural Sanitation
Section 12A / 80G Donate generously ;-)
Biome Environmental Trust
(Rainwater Club) [email protected]
www.rainwaterclub.orgwww.biome-solutions.com 1022, 1st floor, 6th Block,
HMT Layout, Vidyaranyapura, Bangalore – 560 097,
Phone : 080 41672790
A yielding recharge well !!
Rainwater sent for recharge
Recharging a bore wellOutlet pipe in recharge well
…So What is water quality ?...
• Is your piped water, borewell water or tanker water clean ?• How do you know ? Have you tested water you use ?• And have you tested it after your aquaguard, RO system or
whatever-else ?
BIS 10500:1991 – Drinking water Standards for India, 33 parameters. Formal water testing conducted in Accredited Labs found in cities.
Water Quality issues to watch out for in cities :a) TDS – High TDS in groundwater. Health issues and Problem for Fixtures, pipes, taste etcb) Hardness – High hardness in groundwater. Health issues, Soaping, taste and stainsc) TSS – High TSS – associated typically with surface water sources. Sometimes piped water in blore has silt !!!d) High Nitrates and phoshates – Urban area sewage mixing with water or seeping into groundwatere) Bacterial and viral contamination – Source of this can be anything including way water is handled and stored.f) In specific geologies issues like Iron, Flouride, Arsenic needs to be checked
Good Ground Water Management : A component of good water management
Demand & Catchment ManagementSource and Supply Management (covered)
Waste Water Management
Waste Water Management
What goes around comes around
Bangalore Ground water has high nitrates (upto 100-150)
Waste Water you throw out comesBack into your borewell
Waste Water Management
Is your STP working or is it just getting rid of your waste water ?
Do you do regular checks of STP output water ?
Is the contract with your STP operator linked to quality of output ? Does he have metrics of performance ?
Can you reuse waste water ? Can you separate out different kinds of waste water ?
Does your flushing need good quality water ?
Can you treat waste water to good enough quality that you can recharge it ?
Dewats
Dewats with Grey water recycle
Reuse Waste Water (eg: Grey for flushing, Treated black/grey for irrigation)
And use the treated waste water to irrigateYour roof farm that produces food
Getting Maverick :Turn sewage to a nutrient through Eco-san
The choice is yours:Want to be part of the solution ?
orWant to be part of the problem ?
Kunju Azhil, 57
Started digging surangas when was 16
Surangas of Kasargod
How much water do I use ?
Use Litres/person
Drinking 3
Cooking 4
Bathing 20
Flushing 40
Washing-clothes 25
Washing Utensils 20
Gardening 23
Total 135
Real Consumption range :
from 50 to 300 liters per person per day
National Town planning Norms :
Urban : 135 Lpcd
Rural (Karnataka) : 55 Lpcd
How much
Water do
YOU
Use ?