HGS RESEARCH HIGHLIGHT – Vulnerability of the Saint-Charles drinking water source: portrait of the groundwater resources of the St-Charles River watershed and their links with surface water
Research Highlight, HGS, Groundwater, GW-SW exchange, Source water protection, Watershed hydrology, Water Resources Management Veljko Zaric Research Highlight, HGS, Groundwater, GW-SW exchange, Source water protection, Watershed hydrology, Water Resources Management Veljko Zaric

HGS RESEARCH HIGHLIGHT – Vulnerability of the Saint-Charles drinking water source: portrait of the groundwater resources of the St-Charles River watershed and their links with surface water

We’re pleased to highlight this research effort, which focuses on understanding the vulnerability of the Saint-Charles River drinking water source and characterizing the groundwater resources that support it. Presented through a public-facing ArcGIS Story Map, this project delivers an accessible summary of a detailed hydrogeological study that integrates field measurements, geochemical analyses, and numerical modeling to evaluate the watershed’s current and future ability to provide safe, reliable drinking water for the City of Quebec and its surrounding municipalities.

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HGS RESEARCH HIGHLIGHT – Source Water Protection in Quebec City: Using an integrated 3D hydrological model to investigate surface water-groundwater interactions
Research Highlight, HGS, Groundwater, Particle tracing, Hydraulic mixing cell, GW-SW exchange, Source water protection, Watershed hydrology, Water Resources Management Veljko Zaric Research Highlight, HGS, Groundwater, Particle tracing, Hydraulic mixing cell, GW-SW exchange, Source water protection, Watershed hydrology, Water Resources Management Veljko Zaric

HGS RESEARCH HIGHLIGHT – Source Water Protection in Quebec City: Using an integrated 3D hydrological model to investigate surface water-groundwater interactions

The research, presented as a poster by Benjamin Frot at EGU 2025, explores the use of HydroGeoSphere (HGS) to investigate surface water–groundwater interactions in the Saint-Charles River watershed, which supplies drinking water to Quebec City. With a focus on source water protection, the study addresses the challenges posed by increasing urbanization, contamination from septic systems and road salts, and reduced water availability during low-flow periods. The work is part of a larger project aimed at evaluating the vulnerability of Quebec City's main surface water intake.

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