LLANFOIST SEWAGE TREATMENT WORKS ME STW - Abergavenny, Wales Wastewater Treatment

LLANFOIST SEWAGE TREATMENT WORKS ME STW is a wastewater treatment facility located in Abergavenny, Monmouthshire, Wales. It serves a population of approximately 15,368 people, classifying it as a medium-sized agglomeration under UK and EU regulatory frameworks. The plant is situated inland, away from the coast, and its operations are part of the broader water infrastructure managed by Welsh Water (Dŵr Cymru). As a UK wastewater treatment plant, it operates under the Urban Waste Water Treatment (England and Wales) Regulations, which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For a population equivalent of this scale, secondary treatment is typically required. The plant's designed capacity is 1.00 (likely in megalitres per day or similar unit), indicating its treatment capability. The plant's treated effluent is discharged into a local watercourse, likely a tributary of the River Usk, which flows into the Severn Estuary and ultimately the Bristol Channel. This catchment supports diverse aquatic life and is important for migratory fish species. The plant plays a key role in protecting water quality in the region.

The plant discharges into a local watercourse that drains into the River Usk, a designated Site of Special Scientific Interest (SSSI) and Special Area of Conservation (SAC) for its salmon, lamprey, and otter populations. The Usk flows into the Severn Estuary, a major ecological feature supporting migratory birds and fish. The plant's treatment helps maintain water quality in this sensitive catchment.