Kingston Bagpuize STW - Secondary Wastewater Treatment in Oxfordshire, England

Kingston Bagpuize STW (Sewage Treatment Works) is a municipal wastewater facility located in Kingston Bagpuize with Southmoor, near the Vale of White Horse in Oxfordshire, England. The plant serves a population of approximately 3,010 people, classifying it as a small agglomeration under UK and EU regulatory frameworks. The plant provides secondary treatment, which is the standard biological treatment stage required for all discharges under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into UK law. For a plant of this size, secondary treatment is the expected minimum, ensuring removal of organic matter and suspended solids before discharge. The treated effluent is released into local watercourses that drain into the River Thames via the Ock or other tributaries. The Thames River Basin supports diverse aquatic life and is a critical water resource for southern England. The plant's operation helps protect downstream water quality in this ecologically and economically important catchment.

The plant discharges into local streams that flow into the River Thames, which ultimately reaches the North Sea via the Thames Estuary. The Thames River Basin supports a range of fish species, including salmon and eel, and provides habitat for waterfowl and invertebrates. The area is part of the Thames catchment, which is designated as a sensitive area under the EU UWWTD due to nutrient enrichment risks.