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Utilization of Storm Runoff for Groundwater Recharge in Urban Areas- A Case Study of Gujranwala City in Pakistan
Journal: Journal of River Engineering
Issue: Journal of River Engineering (Volume: 1, Issue: 2)
Author: Saqib Ehsan
Keywords : Groundwater recharge , Gujranwala city , Storm runoff , hydrogeology , Storm water drainage system
Abstract:

This research highlights the significance of storm runoff for groundwater recharge in urban areas. Due to excessive withdrawal of groundwater, the groundwater table is significantly depleting each year. The storm runoff in urban areas should be first stored then it can be used for possible groundwater recharge by adopting feasible recharge techniques. A proper storm drainage system should be functional in order to collect the surface run off from different parts of an urban area. As case study, the Gujranwala city in Pakistan has been taken into consideration. The city has strong potential for a storm water drainage system. Each year a significant amount of storm runoff in Gujranwala city is not utilized due to unavailability of a proper storm water drainage system. Different aspects of hydrology and hydrogeology of this city have been thoroughly studied. Further, design considerations for tube wells have also been elaborated. Based on the available data, different options for groundwater water recharge in city area have been investigated and also a typical design of an inverted well in city area has been proposed. This study strongly recommends the concerned authorities to first provide a suitable storm water drainage system in Gujranwala city and to investigate the feasible options of groundwater recharge keeping in view the hydrological and hydro-geological conditions. This research is intended to provide useful guidelines for feasibility of groundwater recharge techniques in other urban areas of Pakistan and also other parts of the world.

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