Aquifers in the Thames Basin

There are three principle aquifers within the Thames Basin: the Chalk, the Oolitic limestones of the Jurassic and the Lower Greensand.

These aquifers provide about 40 per cent of the region's water supply and support significant river flow and wetland habitats.

Follow the links for specific information about each of the principle aquifers and other minor aquifers within the Basin.

View the full hydrogeological sequence present within the Thames Basin.

Geological map showing the major aquifers of the Thames Basin


Contact Stephanie Bricker for further information