Trimsaran WWTW Spudder Bridge Rd STW - Carmarthenshire, Wales Wastewater Treatment Plant

Trimsaran WWTW Spudder Bridge Rd STW is a wastewater treatment plant located in Trimsaran, Carmarthenshire, Wales. It serves a population of 2,740 and operates under the regulatory framework of the United Kingdom, which implements the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this scale. The plant provides secondary treatment, meeting the standard required for inland and coastal discharges under UK regulations. With a designed capacity of 2,942 m³/day and an actual discharge volume of 610.02 m³/day, the facility operates well below its capacity, indicating headroom for future growth or seasonal variations. The treated effluent is discharged into local watercourses that flow toward the Carmarthen Bay and the Bristol Channel. This coastal proximity means the plant plays a role in protecting the marine environment of the Irish Sea, supporting water quality standards for bathing waters and shellfish waters in the region.

The plant discharges into local streams that drain into the River Loughor estuary and eventually Carmarthen Bay, part of the Bristol Channel and Irish Sea. This coastal area supports diverse marine life and is important for migratory birds and fish species. The secondary treatment provided helps reduce nutrient and organic loads, protecting the sensitive coastal ecosystem from eutrophication and maintaining water quality for recreational and ecological uses.