area idea Reuse order homes lawns nature cities gardens Product gutters country toilets run-off property tap water technique later use expansion businesses Rain Water relocation downspouts free water Irrigation rain barrel water supply Ahmedabad NOC total control Ahmedabad DWLR drinking water large cisterns reconfiguration water Rainwater water shortages municipal water self-sufficiency landscape plants drainage problems stormwater runoff water restrictions impervious surface Ahmedabad Recharge existing structure Ahmadabad Borewell Ahmedabad Injection simple technologies Ahmedabad Piezometer harvesting rainwater Ahmadabad Collection main source of water free source of water sort of storage vessel entire household demand Ahmadabad Rainy filters environmental footprint Ahmedabad Percolation Pit light of population growth Ahmedabad Water Harvesting Uses Of Collected Rainwater Ahmedabad Rooftop Rainwater Rainwater collection systems new home construction System Benefits Of Rainwater Collection Ahmedabad Digital water Flow meter non-potable use Industrial use Urban use Rural use Buildings Use CGWB Compliance Allegiance Water Management Geo Hydrological services Borewell Recharge Services borewell Rainwater Harvesting