NextDrop provides households with accurate and timely information about local piped water delivery, over cell phones already widely in use in India. This information comes from water utility employees who call our interactive voice response system when they open valves to distribute water. These reports are used to generate real-time water availability updates and notifications 30-60 minutes in advance of water delivery. In addition, NextDrop uses crowd-sourcing to verify the accuracy of utility reports and create a feedback loop, introducing much needed visibility for engineers in the water utility.

http://nextdrop.org/