Trebanos STW (Pheasant Rd) - Wastewater Treatment Plant in Trebanos, Wales

Trebanos STW (Sewage Treatment Works) is located on Pheasant Road in Trebanos, near Pontardawe in Neath Port Talbot, Wales. The facility serves a population of around 16,633, classifying it as a medium-sized agglomeration under UK wastewater management frameworks. The plant is situated inland, approximately 50 km from the coast. As a UK wastewater treatment plant, Trebanos STW operates under the Urban Waste Water Treatment (England and Wales) Regulations, which transpose the EU Urban Waste Water Treatment Directive. For a population of this size, secondary treatment is typically required, with additional nutrient removal if discharging into sensitive areas. The plant's designed capacity is 1.00 (likely in megalitres per day or similar unit), indicating a scale appropriate for its service population. The treated effluent from Trebanos STW likely discharges into a local watercourse that flows into the River Tawe, which then drains into Swansea Bay in the Bristol Channel. This coastal environment supports diverse marine life and is important for local fisheries and recreation. The plant's discharge must meet strict quality standards to protect the downstream aquatic ecosystem.

Trebanos STW discharges into the River Tawe catchment, which flows southward through the Swansea Valley into Swansea Bay (Bristol Channel). The Tawe supports salmon and sea trout populations, and its estuary is a designated site for migratory birds. The plant's effluent quality is regulated to prevent nutrient enrichment and protect the ecological balance of the river and coastal waters.