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Environmental Isotopes of Water as Potential Tool to Distinguish the Sources of Groundwater Recharge in a Semi-arid Region: A Case Study Around Veeranam Tank, Tamil Nadu, India

Environmental Isotopes of Water as Potential Tool to Distinguish the Sources of Groundwater... Stable isotope ratios of hydrogen and oxygen (δ18O and δD) were analysed for different water sources around Veeranam Tank in Cuddalore District of Tamil Nadu, India, to understand the groundwater recharge sources in the region. Water samples were collected from the tank, open wells, deep bore wells and the feeding stream (Vadavar River) in the vicinity of the Veeranam Tank for stable isotope measurements. δ18O of the water from open wells ranges from –5.07 to 1.25‰ and δD ranges from − 32.93 to 3.01‰ with the mean concentrations of δ18O and δD of − 1.84‰ and − 15.30‰, respectively. The δ18O and δD values of the deep bore wells range from  − 5.23 to − 3.28‰ and − 37.21 to − 23.09‰, respectively. The mean concentrations of δ18O and δD in the deep bore well water are − 4.52‰ and − 31.25‰, respectively. In the tank water, δ18O ranges from 1.10 to 1.45‰ and δD ranges from 1.65‰ to 4.14‰ with the mean concentrations of δ18O and δD of 1.22‰ and 3.26‰, respectively. δ18O versus δD plot and d-excess value were interpreted to distinguish the predominant sources of recharge of wells in the location. The study identified the wells that are recharged predominantly by rain water and also by the tank. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of The Institution of Engineers (India) Series A Springer Journals

Environmental Isotopes of Water as Potential Tool to Distinguish the Sources of Groundwater Recharge in a Semi-arid Region: A Case Study Around Veeranam Tank, Tamil Nadu, India

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References (49)

Publisher
Springer Journals
Copyright
Copyright © The Institution of Engineers (India) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
2250-2149
eISSN
2250-2157
DOI
10.1007/s40030-023-00767-0
Publisher site
See Article on Publisher Site

Abstract

Stable isotope ratios of hydrogen and oxygen (δ18O and δD) were analysed for different water sources around Veeranam Tank in Cuddalore District of Tamil Nadu, India, to understand the groundwater recharge sources in the region. Water samples were collected from the tank, open wells, deep bore wells and the feeding stream (Vadavar River) in the vicinity of the Veeranam Tank for stable isotope measurements. δ18O of the water from open wells ranges from –5.07 to 1.25‰ and δD ranges from − 32.93 to 3.01‰ with the mean concentrations of δ18O and δD of − 1.84‰ and − 15.30‰, respectively. The δ18O and δD values of the deep bore wells range from  − 5.23 to − 3.28‰ and − 37.21 to − 23.09‰, respectively. The mean concentrations of δ18O and δD in the deep bore well water are − 4.52‰ and − 31.25‰, respectively. In the tank water, δ18O ranges from 1.10 to 1.45‰ and δD ranges from 1.65‰ to 4.14‰ with the mean concentrations of δ18O and δD of 1.22‰ and 3.26‰, respectively. δ18O versus δD plot and d-excess value were interpreted to distinguish the predominant sources of recharge of wells in the location. The study identified the wells that are recharged predominantly by rain water and also by the tank.

Journal

Journal of The Institution of Engineers (India) Series ASpringer Journals

Published: Dec 1, 2023

Keywords: Isotopic signatures of water; d-excess; Surface water and groundwater interaction; Sources of water; Veeranam Tank

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