Fossil groundwater is located in deep underground aquifers that were filled long ago, often during times when the climate was wetter. It can be difficult to access and may be of low quality due to its long residence time in the ground.
Fossil groundwater is located in deep underground aquifers that were filled long ago, often during times when the climate was wetter. It can be difficult to access and may be of low quality due to its long residence time in the ground.