community rainwater harvesting

P. Daniels, K. Grande, E. Hubbard, N. Kulkarni
How long
      would you
              wait for water ?
There isn’t enough water for
       slum residents.
rainwater harvesting
Location: Dharavi, Mumbai, India
Over half the people in Mumbai live in slums




                                                                         ...
“There are times when
we do not get water for a
couple of days in a row.”


                “On days when there is no tap ...
quantity




not quality
a complex setup
tap water from municipal sources
                                   governmental influence needed

  domestic waste
behavi...
Dharavi rainfall

                        900
                        800
                        700
Rainfall Average (mm...
Kumbharwada




              Dharavi’s pottery district
water and pottery
overview of solution

rainwater falls on roofs


    collected by gutters


        flows into pits or tanks


           ...
pits as rainwater tanks
gutters as rainwater collectors
target markets
Stage 1




                             Stage 2




                                                 Stage...
business model



                   set up
   partner
                               install   recover
                 p...
rainwater belongs to everyone
in the field now


receiving feedback
from potters




partnering with local
organizations
a sustainable solution
                         simple design
minimal behavioral changes needed
                  uses loc...
acknowledgments
Thank you to our teammates in India: Hansa,
             Sachin, and Nandini
Kaleel Ahmed
Anita Kulkarni
A...
WaterLink
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WaterLink

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WaterLink is the name of our team of University of Minnesota students working on the 2009 polit Acara challenge. (http://www.acarainstitute.org/).
In this presentation we outline the need for rainwater harvest tools to be brought to the slum Dharavi, India. This is the area made famous by Slumdog Millionaire and the largest slum in Asia. We happily accept any comments as we continue this process. Thank you.

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WaterLink

  1. 1. community rainwater harvesting P. Daniels, K. Grande, E. Hubbard, N. Kulkarni
  2. 2. How long would you wait for water ?
  3. 3. There isn’t enough water for slum residents.
  4. 4. rainwater harvesting
  5. 5. Location: Dharavi, Mumbai, India
  6. 6. Over half the people in Mumbai live in slums American Mumbai resident Dharavi resident lack of sewage systems account for high rates of water-borne disease tap water is available for 3 hours per day
  7. 7. “There are times when we do not get water for a couple of days in a row.” “On days when there is no tap water, they jack up the price to 9-10 rupees for a can.” “We used to go in search of water at 3:30 in “We cannot get taps the morning and collect three or four officially. We have filled handaas by seven o’ clock.” in forms so many times but the municipality throws them away.” “When we wash bed sheets, blankets etc., we need to buy water worth nearly 50 rupees.” Environment & Urbanization 2003
  8. 8. quantity not quality
  9. 9. a complex setup
  10. 10. tap water from municipal sources governmental influence needed domestic waste behavioral change necessary industrial waste substantial contamination artificial—tankers from outside expensive, unsustainable rainwater harvesting the link to a sustainable water supply
  11. 11. Dharavi rainfall 900 800 700 Rainfall Average (mm) 600 500 400 300 200 100 0 J F M A M J J A S O N D
  12. 12. Kumbharwada Dharavi’s pottery district
  13. 13. water and pottery
  14. 14. overview of solution rainwater falls on roofs collected by gutters flows into pits or tanks available for bathing, dishes, laundry water available beyond monsoon season
  15. 15. pits as rainwater tanks
  16. 16. gutters as rainwater collectors
  17. 17. target markets Stage 1 Stage 2 Stage 3 pilot entire other region slum slums pottery district Dharavi worldwide
  18. 18. business model set up partner install recover payment with local installment systems costs organization plan
  19. 19. rainwater belongs to everyone
  20. 20. in the field now receiving feedback from potters partnering with local organizations
  21. 21. a sustainable solution simple design minimal behavioral changes needed uses local materials improves health doesn’t depend on government community-based solution
  22. 22. acknowledgments Thank you to our teammates in India: Hansa, Sachin, and Nandini Kaleel Ahmed Anita Kulkarni Adam Van Sickle Jamie Mosel Jordan Shuck

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