Overview
Middlesborough STW serves approximately 393,000 people in Redcar, England. The plant operates under the UK's urban wastewater treatment regulations, discharging into the Tees Valley catchment.
Middlesborough STW is a major wastewater treatment facility located in Redcar, North Yorkshire, within the Tees Valley region of England. Serving a population of around 393,000, it is classified as a large agglomeration under UK and EU regulatory frameworks. The plant is situated near the coast of the North Sea, making its discharge management critical for local marine water quality. As a large-scale treatment plant, Middlesborough STW is expected to meet stringent treatment standards under the Urban Waste Water Treatment Directive (transposed into UK law). The facility's designed capacity is recorded at 1. UK regulations require secondary treatment for discharges to coastal waters, with potential additional nutrient removal in sensitive areas. The plant's treated effluent ultimately reaches the North Sea via local watercourses in the Tees Valley. The North Sea is an ecologically important marine environment supporting diverse fish stocks, seabird colonies, and benthic habitats. Effective wastewater treatment at this scale is essential to protect coastal water quality and marine ecosystems from nutrient enrichment and pollution.
Environmental context
Middlesborough STW discharges into the Tees Valley catchment, which drains into the North Sea. The North Sea is a productive marine ecosystem supporting commercial fisheries, seabird colonies, and sensitive benthic habitats. Nutrient inputs from large coastal treatment plants can contribute to eutrophication, making advanced treatment important for maintaining water quality in this region.
Frequently asked questions
Middlesborough STW is located in Redcar, North Yorkshire, within the Tees Valley region of England, United Kingdom.
The plant serves approximately 393,120 people, classifying it as a large agglomeration under UK wastewater regulations.
The plant discharges treated effluent into local watercourses within the Tees Valley catchment, which ultimately flows into the North Sea.
The plant operates under the UK's implementation of the Urban Waste Water Treatment Directive, which mandates secondary treatment for coastal discharges from large agglomerations.
For large agglomerations in the UK, secondary treatment is standard, with tertiary treatment often required for discharges to sensitive areas or to meet nutrient removal standards.
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