Leominster STW Southern Avenue STW - Wastewater Treatment Plant in Herefordshire, England

Leominster STW Southern Avenue STW is a wastewater treatment facility located on Worcester Road in Leominster, Herefordshire, England. The plant serves a population of around 11,437 residents, classifying it as a small to medium agglomeration under UK water industry standards. As a plant in the United Kingdom, Leominster STW operates under the Urban Waste Water Treatment (England and Wales) Regulations, which transpose the EU Urban Waste Water Treatment Directive. The treated effluent from the plant is discharged into the local water environment, ultimately draining into the River Lugg, a tributary of the River Wye. The River Wye is a designated Site of Special Scientific Interest (SSSI) and supports diverse aquatic life, including salmon and otter populations. The plant plays a key role in protecting this ecologically important river system.

Leominster STW discharges into the River Lugg, which flows into the River Wye, one of the most important rivers in the UK for conservation. The Wye supports a rich ecosystem, including Atlantic salmon, sea trout, and various bird species. The plant's operations help maintain water quality in this sensitive catchment, which is vital for both biodiversity and downstream water users.