On the flipside the great lakes are nearly at an all time high. Maybe the growth in those places requiring deeper wells have exceeded what they can support?
https://www.usgs.gov/news/widespread-plastic-pollution-found..., https://www.safewater.org/fact-sheets-1/2017/1/23/the-great-... etc.
The great lakes were created by receding glaciers, but it's been more than 10,000 years since they were glacier fed.