Water Positive
Make Every Drop Count: Water Dashboard
Demand-Supply, Challenges
Water: Demand, Supply
Mumbai
Visible Water Stress – Demand outstripping Supply
Ahmedabad
Non Revenue Water, Declining Ground Water
Surat
Major source is bore wells, ground water, Challenges of rapid growth
Pune
No official water shortage but 25% increase in water tankers. Water at Four Dams ok, but rapidly increasing demand.
Key Challenges
Urban
Rural
Sources of Water – Urban, Rural Schools
More than 50% of Jesuit Schools are in Rural Areas
Urban Schools
Rural Schools
Uses of Water : Open Space in Urban Schools
Holy Family, Mumbai
Open Space: 32%
St Mary’s ICSE, Mumbai
Open Space: 32%
St Vincent’s, Pune
Open Space: 50%
Usage Distribution in Urban School
About 85% potable water used for non-drinking purposes!
|
Use |
Approximate % of Total Water Use |
|---|---|
|
Toilets & Urinals (Flushing) |
45% to 60% |
|
Drinking & Handwashing |
10% to 15% |
|
Kitchen/Cooking (if meals are prepared) |
10% to 15% |
|
Cleaning (floors / classrooms etc.) |
10% to 1% |
|
Gardening/Lawns/Grounds |
5% to 10% |
|
Other (Labs, Maintenance etc) |
2% to 5% |
Inefficient Usage of Potable Water
Urban Schools get 65% of water from Municipal pipeline which is a single pipeline meant for all uses leading to misuse, wastage of potable water. And higher Water bills !
How do we build water efficiency
Use Recycled Water for ALL non-drinking functions!
Yes – will take time (like Solar)
Technologies for Water Recycling
365 days of the year
120 days of the year
Dashboard for Efficient Water Management
|
Metric
|
Value
|
|---|---|
|
Total Water Consumption |
2,5000 L/month |
|
Per Student Water Usage |
30 L/Day |
|
Rainwater Harvested |
12,000 L/month |
|
Water Reuse (E.g Grey |
4,000 L/month |
|
Leak Loss Estimate |
8% |
|
Monthly Water Bill |
Rs 7,200 |
Percentage of Water met through Sustainable sources