Document Type : Original Research Paper
Civil Engineering Department, Maharashtra Institute of Technology (MIT), Pune, India
Professor, Civil Engineering Department, College of Engineering, Pune (COEP), India
Anthropogenic alterations have affected urban hydrology in India and have generated a wide range of hydrological problems. Such alterations include increase in directly-connected impervious cover thus reducing natural groundwater recharge. In the past urban runoff was largely viewed as a nuisance, but within the new paradigm of sustainability, this water is recognized as a potential resource. This research paper discusses the importance of managing stormwater sustainably by recharging groundwater sources. It indicates the potential of stormwater harvesting, when properly managed, as a tool to counter depleting water sources and ever-increasing demand for water. The present study aims at developing a potential stormwater recharge zone map for a sub watershed in Pune city, India using GIS. Five classes of thematic maps have been integrated to prepare the final map. Each class is assigned a weightage depending on its influence on the recharge of stormwater. The resultant map (potential stormwater recharge zone map) thus prepared is classified into four classes: Very good, good, moderate and poor.