Our water resources
We depend on rainfall for the water we supply to our customers. Find out all the latest information on reservoir levels and learn more about how we plan and manage our resources.
Boreholes & Groundwater
Around 85% of the water we supply to our customers comes from underground. We use boreholes to extract groundwater from the deep water-holding rocks (called aquifers) in the chalk of the North Downs, or the large deposits of greensand south of the Downs. Our boreholes are sunk into these aquifers and the groundwater is pumped to the surface and to the nearest treatment works.







