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Vystavna Y, Schmidt SI, Diadin D, Rossi PM, Vergeles Y, Erostate M, Yermakovych I, Yakovlev V, Knöller K, Vadillo I. Multi-tracing of recharge seasonality and contamination in groundwater: A tool for urban water resource management. WATER RESEARCH 2019; 161:413-422. [PMID: 31226539 DOI: 10.1016/j.watres.2019.06.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 06/04/2019] [Accepted: 06/11/2019] [Indexed: 06/09/2023]
Abstract
In this study, sources of recharge and contamination in urban groundwater and in groundwater underneath a forest in the same aquifer were determined and compared. Data on hydro-chemical parameters and stable isotopes of water were collected in urban and forest springs in the Kharkiv region, Ukraine, over a period of 12 months. Groundwater transit time and precipitation contribution were calculated using hydrogeological data and stable isotopes of water to delineate groundwater recharge conditions. Hydro-chemical data, stable isotopes and emerging contaminants were used to trace anthropogenic groundwater recharge and approximate sewage and tap water contributions to the aquifer. The results indicated that each spring had unique isotopic signatures that could be explained by recharge conditions, groundwater residence time, and specific mixing patterns with sewage and water leaks. Elevated nitrate content, stable isotopes of nitrate, and the presence of emerging pollutants (mainly illicit drugs) in most of the urban springs confirmed mixing of urban groundwater with sewage leaks. These leaks amounted to up to 25% of total recharge and exhibited seasonal variations in some springs. Overall, the results show that urban groundwater receives variable seasonal contributions of anthropogenic components that increase the risk to the environment and human health, and reduce its usability for drinking water production. The multi-tracing approach presented can be useful for other cities worldwide that have similar problems of poor water management and inadequate sewage and water supply infrastructure.
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Affiliation(s)
- Y Vystavna
- Institute of Hydrobiology, Biology Centre of the Academy of Sciences of the Czech Republic, Na Sádkách 7, 37005, České Budějovice, Czech Republic; Department of Environmental Engineering and Management, O.M. Beketov National University of Urban Economy in Kharkiv, vul. Marshala Bazhanova 17, 61002, Kharkiv, Ukraine.
| | - S I Schmidt
- Institute of Hydrobiology, Biology Centre of the Academy of Sciences of the Czech Republic, Na Sádkách 7, 37005, České Budějovice, Czech Republic
| | - D Diadin
- Department of Environmental Engineering and Management, O.M. Beketov National University of Urban Economy in Kharkiv, vul. Marshala Bazhanova 17, 61002, Kharkiv, Ukraine
| | - P M Rossi
- Water, Energy and Environmental Engineering Research Unit, University of Oulu, P.O. Box 4300, 90014, Oulu, Finland
| | - Y Vergeles
- Department of Environmental Engineering and Management, O.M. Beketov National University of Urban Economy in Kharkiv, vul. Marshala Bazhanova 17, 61002, Kharkiv, Ukraine
| | - M Erostate
- Université de Corse Pascal Paoli, Faculté des Sciences et Techniques, Département d'Hydrogéologie, Campus Grimaldi, BP 52, F-20250, Corte, France; CNRS, UMR 6134, SPE, F-20250, Corte, France
| | - I Yermakovych
- Department of Environmental Engineering and Management, O.M. Beketov National University of Urban Economy in Kharkiv, vul. Marshala Bazhanova 17, 61002, Kharkiv, Ukraine
| | - V Yakovlev
- Department of Environmental Engineering and Management, O.M. Beketov National University of Urban Economy in Kharkiv, vul. Marshala Bazhanova 17, 61002, Kharkiv, Ukraine; Water Quality Laboratory "PLAYA", vul. Hanna 10, 61001, Kharkiv, Ukraine
| | - K Knöller
- Helmholtz Centre for Environmental Research - UFZ, Department of Catchment Hydrology, Theodor-Lieser-Str. 4, 06120, Halle, Germany
| | - I Vadillo
- Group of Hydrogeology, Faculty of Science, University of Malaga, 29071, Malaga, Spain
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