Integration of Geoelectrical Imaging and Hydrochemistry Data in a Coastal Aquifer in India

摘要

Groundwater is a vital source of drinking water on earth. The quality of groundwater is under increasing stress due to various anthropogenic stresses. The impact of ash ponds has been a major concern and is a subject of research. The present study seeks to assess the impact of an ash pond on the near sub-surface through Resistivity and IP imaging survey. The Resistivity and IP imaging data has been acquired on profiles close to the ash pond and at some far off locations. Groundwater and surface water samples have been collected from the ash pond and also from the wells in and around the ash pond. The study indicates very low resistivity formations in the near sub surface at location close to the ash pond as compared to the profile approximately 1 km away from the pond. The water chemistry data from the monitoring wells indicates very high Total Dissolved Solids (8658 mg/L) and chloride (1402 mg/L).