Should people look at community-based rain water harvesting?
Under the rules, all existing buildings in sites that measure 60X40 feet and above need to have rain water harvesting facilities. All new constructions in sites of 30X40 feet and above will also need to be equipped with such facilities. However, this does not mean that sites that do not fall in these categories need no rain water harvesting. It is quite likely that in a few years, sites of 30X40 feet will also be covered by the rule. Community-based initiatives are being taken up in many areas. We are helping the BBMP to build ground water recharge wells thatdivert rain water to the ground, so that the water table increases. Storm water drains are being designed with in-built filteration, which helps rain water percolate to the ground.
