EDEN VALE STW - Dormans Park, Surrey Wastewater Treatment Plant

EDEN VALE STW is a wastewater treatment plant located in Dormans Park, Surrey, England, serving the local community of Charters Village and surrounding areas. With a population equivalent of around 13,815, it is classified as a medium-sized agglomeration under UK regulations. As a UK facility, it operates under the Urban Waste Water Treatment (England and Wales) Regulations, which transpose the EU Urban Waste Water Treatment Directive. For agglomerations of this size, secondary treatment is typically required, with additional nutrient removal if discharging into sensitive areas. The treated effluent is discharged into local watercourses that ultimately drain into the River Medway or the River Eden, both part of the Thames Basin. The plant plays a key role in protecting the water quality of these rivers and the downstream Thames Estuary, supporting aquatic life and recreational uses.

The plant's discharge likely enters the River Eden or a tributary, which flows into the River Medway and eventually the Thames Estuary. This catchment supports diverse aquatic habitats, including salmonid fisheries and wetland areas. The Thames Estuary is ecologically important for migratory birds and fish species, making effective wastewater treatment critical to maintaining water quality and biodiversity.