Hydrology, Volume 11, Issue 12
2024 December - 23 articles
Cover Story: Municipalities around the world tend to place their production wells in shallow alluvial aquifers near streams. Pumping these wells then induces the infiltration of surface water into the aquifer, allowing for a greater extraction of water without significantly depleting the aquifer. However, induced infiltration can potentially introduce contaminants from the surface water into the groundwater systems and lead to streamflow depletion. We hypothesized that an average proportion of municipally pumped water coming from induced infiltration could be quantified using a simple binary mixing model, with the δ18O and δ2H signatures of surface water, groundwater, and pumped water. Results show that the percentage of induced infiltration was 57%, 59%, and 15% at the three wells. Induced infiltration was influenced by proximity to surface water, pump rates, and duration. View this paper - Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
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