Where I live (CH) they reinject water into the ground as they pump it, to preserve the aquifer levels. iirc they have some kind of pressure monitoring. The wa

Where I live (CH) they reinject water into the ground as they pump it, to preserve the aquifer levels. iirc they have some kind of pressure monitoring. The water there is already purified and clean (slowly went through rocks). It's actually super impressive to see the well, it is so clear that the water level is not visible, looks like it is totally empty.