Oral Presentation NCGRT/IAH Australasian Groundwater Conference 2019

Climate resilient urban water security by recharge techniques   (253)

Jagannatha Venkataramaiah 1 , Shashankar Anantharaimaiah 1 , Mohammed Inayatulla 1
  1. Civil, Jain University, Bengaluru, Karnataka, India

 As a part of an ongoing PhD work, Climate Resilient Water Security Urban settlements demand climate resilient strategies and action plans to ensure a secured water management for Bengaluru Urban region, India was undertaken.

Comparative analysis was conducted,  U N reports that since 1900, natural  disasters including intense flooding have quadrupled from 50 per year to 200 per year. A definite  climate resilient action plans in cities around the world are available. These initiatives have demonstrated definite vision, agenda and action plans specific to each of the cities. Case Studies of four urban settlements Guarulhos (Brazil), Arequipa  and Lima(Peru)  and Durban(South Africa) reveal transition, structural changes for delegation of responsibilities on water security and its management. Literature survey was conducted.

Data was collected from the  analysis of the relevant case studies and field visits. These global practices are relevant to over 277 Urban Local Bodies in Karnataka of which only 54 towns have Under Ground Drainage and Sewage Treatment Plants.  A study of  Bengaluru are reported in this paper.   

Conclusively, Studies using Survey Maps and Satellite Imageries during 1900 to 1985 reveal a trend of  lowered ecological planning in development plans. In the recent past over 300 urban water bodies are of focus for conservation strategies at Bengaluru Urban Region. Hydrogeological investigations  reveal that the ground water resources are contaminated. Dynamic Ground Water Resources investigations emphasis appropriate attention as there is a decline of ground water resources.  In this presentation hydrogeological conditions of Bengaluru Urban Region climate and rainfall, Geological Succession, soil and ground water condition,seasonal, ground water levels and Quality, Estimation methodology are reported. Non Monsoon recharge from rainfall computed by RIP method is discussed. Water Chemistry interpretation Techniques are introduced.  Climate resilient structural changes for Bengaluru Urban water security are identified and reported. Comparison between four global urban regions and Bengaluru case are compared and found that the inadequacy in planning and urban design need to be addressed.  State of the art  remote sensing techniques  in assessing ground water at Bengaluru urban and action plan reveal a endangered ground water security.