Spring Snow Melt Influences on the Elbow River and Local Well Groundwater
Many thanks to Alan Breakey of the Bragg Creek Environmental Coalition for his excellent article, “The Importance of Groundwater”. It is important for everyone to understand the important role of precipitation in recharging our groundwater. Significant recurring annual rain events are critical for the ongoing health of our groundwater that so many of us rely on.
However, I was puzzled with Alan’s conclusion, based on his figure, that spring snow melt did not contribute to groundwater recharge. As Alan knows, the flow of snow melt water (aka the spring freshet) in the Elbow River at Bragg Creek increases dramatically in June.
To test Alan’s conclusion, I had a closer look at the data in his figure. Looking specifically at June 2022 and 2023, the month of the freshet shows a dramatic increase in water table level without any corresponding increase in recorded precipitation. The observed increases in water table depth occur prior to the precipitation events shown in his figure for the months of June in 2022 and 2023.
In conclusion, I think groundwater recharge from the river does occur as a result of spring snow melt, although likely only within a zone of influence. That is, wells that are relatively close to the river will be affected. In contrast, wells further away from the river would be less or not affected at all. As the wells in the article are identified as being in the West Bragg Creek area, the expectation is that groundwater levels would be affected by the spring freshet in the river.
Dennis Stefani
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