How Old Is Groundwater? Possibly Thousands or Tens of Thousands of Years
Almost all centralized drinking water supply in Latvia relies on groundwater. An LSM analytical piece asks how long this water has travelled and suggests its age may be thousands or even tens of thousands of years.

Almost all centralized drinking water supply in Latvia is based on groundwater. This means the water reaching household taps comes from underground sources. On a global scale this is not a given, and it gives Latvia an advantage.
The author of the analytical article from LSM, the Latvian public broadcaster's news service, notes that when people turn on a tap or fill a glass, they rarely think about where the water came from or how long its journey was. The headline raises the question of groundwater's age and suggests it could be measured in thousands or even tens of thousands of years.
The introductory passage gives no specific data on individual aquifers, measurements or studies. It therefore conveys only the core idea of the topic: drinking water in Latvia is often far older than most residents might imagine.


