STOKESLEY STW - Kirkby Wastewater Treatment Plant, North Yorkshire

STOKESLEY STW is a wastewater treatment plant located in Kirkby, North Yorkshire, England. It serves a population of approximately 9,136 people, classifying it as a small to medium agglomeration under UK regulations. The plant is situated inland, more than 50 km from the coast, and its treated effluent likely discharges into local watercourses that feed into the River Tees catchment. As a UK wastewater facility, STOKESLEY STW is regulated under the Urban Waste Water Treatment (England and Wales) Regulations 1994, which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, secondary treatment is typically required, with tertiary treatment in sensitive areas. The plant's discharge contributes to the local water environment, ultimately draining into the North Sea via the River Tees. The Tees estuary supports diverse aquatic life and is an important ecological corridor. Effective treatment at STOKESLEY STW helps protect water quality in the river system and downstream coastal waters.

STOKESLEY STW discharges into local watercourses that are part of the River Tees catchment. The River Tees flows eastward through North Yorkshire and County Durham before entering the North Sea near Middlesbrough. The Tees estuary is ecologically sensitive, supporting migratory fish species and diverse bird populations. The plant's inland location means its treated effluent contributes to river flow and water quality in the catchment, with downstream impacts on the estuary and coastal environment.