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My understanding of aquifers is that many of them take many years to fully replenish depending on their size and the makeup of the substrate. I remember a few years ago during the severe droughts there was much worry over aquifer depletion and land subsidence[1]. The primary concern was that certain soil types would compact permanently then no longer be able to hold water ever again. I doubt one season of heavy rainfall and snow melts solves that issue.

[1]: https://ca.water.usgs.gov/land_subsidence/






Many years being on the scale of tens to thousands of years. Cody did a great video on his channel showing confined aquifers, how they work, and why they recharge so slowly:

https://www.youtube.com/watch?v=tF4iCgxsZX4




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