LAVINGTON STW - Secondary Wastewater Treatment Plant in Little Cheverell, Wiltshire

LAVINGTON STW is a municipal wastewater treatment plant located near Little Cheverell in Wiltshire, England. It serves a population of around 3,905 people, classifying it as a small agglomeration under UK and EU regulatory frameworks. The plant is situated inland, away from coastal areas, and its operations are part of the region's water infrastructure. The plant provides secondary treatment, which is the standard level required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. With a designed capacity of 4,860 m³/day and a current discharge volume of 869.39 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent from LAVINGTON STW is discharged into a local watercourse that ultimately drains into the River Avon (Bristol Avon) catchment. This river flows through the Wiltshire countryside before reaching the Severn Estuary and the Bristol Channel. The plant plays a key role in protecting the water quality of these downstream environments, supporting aquatic life and recreational uses.

The treated effluent from LAVINGTON STW enters a local stream that feeds into the River Avon (Bristol Avon) catchment. The River Avon flows through agricultural and semi-urban areas before reaching the Severn Estuary, a large tidal estuary with diverse ecosystems. The estuary supports important bird populations and fish species, including salmon and eels. The plant's secondary treatment helps reduce organic pollutants and nutrients, mitigating eutrophication risks in the downstream river and estuary.