Epsom and Dorking Chalk Operational Catchment
Water bodies
There are 2 water bodies in this operational catchment.
Filter map layers
Data
Protected Areas
About
The Epsom North Downs Chalk consists of various units of chalk all of which are classed as Principal Aquifers, bounded to the south by impermeable Gault Clay and to the north by the Lower London Tertiaries. Groundwater flow begins to the south where the chalk escarpment means that the land is some 200 metres above sea level, flowing north following the dip in the chalk toward the River Thames. The chalk is dominated by rapid groundwater flow through fissures, and is used extensively for public and industrial water supplies. This groundwater body is a Drinking Water Protected Area.
