Chennai in India is considered another success story for rainwater harvesting. It should be noted that there was much whining and hand-wringing about the costs

Chennai in India is considered another success story for rainwater harvesting. It should be noted that there was much whining and hand-wringing about the costs of setting this up. But the situation got kinda bad about a decade ago, and there was an ordinance from the state government that every building must have the requisite facilities. The situation turned around within a few years, and the water situation is much much better now. Here are a few (semi-random) articles about that: 1. http://www.thealternative.in/society/i-started-to-do-rwh-in-chennai-for-selfish-reasons-sekhar-raghavan/ http://www.thealternative.in/society/i-started-to-do-rwh-in-... 2. http://www.auick.org/database/apc/apc044/apc04403.html http://www.auick.org/database/apc/apc044/apc04403.html 3. http://www.ndtv.com/india-news/tamil-nadus-water-revolution-402085 http://www.ndtv.com/india-news/tamil-nadus-water-revolution-...