Daventry STW Wastewater Treatment Plant, Daventry, England

Daventry STW is a municipal wastewater treatment facility located in Daventry, West Northamptonshire, England. The plant serves a population of approximately 27,889 people, classifying it as a medium-sized agglomeration under UK and EU standards. As a UK wastewater treatment plant, Daventry STW operates under the Water Industry Act 1991 and is regulated by the Environment Agency. Plants serving populations between 10,000 and 100,000 are typically required to provide secondary treatment, with additional nutrient removal if discharging into sensitive areas. The plant's treatment processes are designed to meet the standards set by the Urban Waste Water Treatment Directive (91/271/EEC), which the UK transposed into national law. The treated effluent from Daventry STW is discharged into local watercourses that ultimately drain into the River Nene basin. The River Nene flows eastward through Northamptonshire and into the Wash, an ecologically important estuary on the east coast of England. The plant plays a key role in protecting the water quality of the Nene catchment and downstream environments.

Daventry STW discharges into the River Nene catchment, which flows into the Wash estuary. The Wash is a large tidal basin and a nationally important site for migratory birds and diverse aquatic life. The plant's operations help maintain water quality in the Nene, supporting the ecological health of the river and its downstream habitats.