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Analysis of the surface water/groundwater interaction using the gas tracers during a dynamic test: a case of induced infiltration from the river in the piedmont area
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  • Tomasz Kotowski,
  • Joanna Najman,
  • Aleksandra Nowobilska-Luberda,
  • Tomasz Bergel,
  • Grzegorz Kaczor
Tomasz Kotowski
Miasto Krakow

Corresponding Author:[email protected]

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Joanna Najman
Instytut Fizyki Jadrowej im Henryka Niewodniczanskiego Polskiej Akademii Nauk
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Aleksandra Nowobilska-Luberda
Miasto Krakow
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Tomasz Bergel
Miasto Krakow
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Grzegorz Kaczor
Miasto Krakow
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We discuss a study that aimed to understand the genesis and inflow conditions of abstracted water by intake with induced infiltration located at a mountain river. A simple approach based on a combination of two research techniques was used: two-component water mixing modelling and studies of the variability of concentrations of environmental tracers in a dynamic test. This approach is versatile, easy to apply and modify, and can be good method for controlling surface/groundwater interactions. We used the gas tracers because gas exchange and dissolution of gases in infiltrating rainwater gives it a unique gas signature that is largely retained in groundwater. We focus on understanding river/aquifer interactions at the scale of reach of an intake. To understand these issues, a two-day field hydrogeological experiment based on a pumping test of increasing intensity was conducted. At each pumping stage, groundwater and river samples were collected to determine the concentration of noble gases, CFCs, SF6, stable isotope content, and chemical composition of the water. The study results indicate a short pressure propagation time between the intake and the river, which results in inflow of water already at low water abstract by the intake. Despite limited river water inflow, there was a continuous hydraulic contact river/aquifer, largely independent of changes in pumping intensity. As pumping intensity increased, the river/aquifer hydraulic system tended towards stabilised conditions of mixing and inflow to the intake. In general, a small proportion of river water (up to 26%) was found in the exchange flux between the river and groundwater.
15 Sep 2022Submitted to Hydrological Processes
19 Sep 2022Submission Checks Completed
19 Sep 2022Assigned to Editor
19 Sep 2022Reviewer(s) Assigned
03 Nov 2022Review(s) Completed, Editorial Evaluation Pending
04 Nov 2022Editorial Decision: Revise Major
19 Dec 20221st Revision Received
28 Dec 2022Submission Checks Completed
28 Dec 2022Assigned to Editor
28 Dec 2022Reviewer(s) Assigned
30 Dec 2022Reviewer(s) Assigned
03 Feb 2023Review(s) Completed, Editorial Evaluation Pending
03 Feb 2023Editorial Decision: Revise Minor
27 Feb 20232nd Revision Received
06 Mar 2023Submission Checks Completed
06 Mar 2023Assigned to Editor
06 Mar 2023Reviewer(s) Assigned
06 Mar 2023Review(s) Completed, Editorial Evaluation Pending
08 Mar 2023Editorial Decision: Revise Minor
21 Mar 20233rd Revision Received
22 Mar 2023Submission Checks Completed
22 Mar 2023Assigned to Editor
22 Mar 2023Reviewer(s) Assigned
22 Mar 2023Review(s) Completed, Editorial Evaluation Pending
22 Mar 2023Editorial Decision: Accept