Resolven STW Storm Tanks Neath STW - Melincourt, Wales Wastewater Treatment Plant

Resolven STW Storm Tanks Neath STW is a wastewater treatment plant located in Melincourt, Neath Port Talbot, Wales, United Kingdom. The plant serves a population of approximately 2,576 and operates under secondary treatment, which is the standard level required by the EU Urban Waste Water Treatment Directive for agglomerations of this size. The plant has a designed capacity of 2988 m³/day and reports a discharge volume of 573.51 m³/day. As a facility within 10 km of the coast, it must meet additional regulatory requirements to protect sensitive coastal waters. The plant is part of the broader wastewater infrastructure managed by Welsh Water (Dŵr Cymru), which oversees compliance with environmental permits issued by Natural Resources Wales. The treated effluent from the plant ultimately drains into the Neath River estuary and then into the Bristol Channel, a major tidal estuary with significant ecological importance. The area supports diverse marine life and migratory bird populations, making effective wastewater treatment critical for maintaining water quality and ecosystem health.

The plant discharges into the Neath River, which flows into the Bristol Channel, a large estuary known for its high tidal range and rich biodiversity. The Bristol Channel supports important habitats for fish, birds, and marine mammals, including the Severn Estuary's designated conservation areas. Effective secondary treatment helps reduce nutrient and pollutant loads, protecting downstream ecosystems from eutrophication and contamination.