Dorchester STW Oxon - Secondary Wastewater Treatment in South Oxfordshire, England

Dorchester STW Oxon is a wastewater treatment plant located in Dorchester-on-Thames, South Oxfordshire, England. It serves a population of approximately 2,370 people and operates under the regulatory framework of the United Kingdom, which implements the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this scale. The plant provides secondary treatment, a standard level for small agglomerations under UK regulations. With a designed capacity of 25,841 cubic meters per day and an average discharge volume of 527.64 cubic meters per day, the facility has ample capacity to handle current loads. The plant is operated as part of the UK's municipal wastewater infrastructure, overseen by the Environment Agency. Treated effluent from the plant is discharged into the River Thames catchment, which flows through Oxfordshire and ultimately into the North Sea via the Thames Estuary. The plant plays a key role in protecting the local water environment, including the River Thames and its associated ecosystems, from nutrient pollution and other contaminants.

The plant discharges into the River Thames catchment, which drains through southern England into the North Sea. The Thames supports diverse aquatic life and is an important ecological corridor. The plant's secondary treatment helps reduce organic pollutants and nutrients, contributing to the health of downstream waters, including sensitive habitats in the Thames Estuary.