IMMINGHAM STW - Immingham Wastewater Treatment Plant, England

IMMINGHAM STW is a municipal wastewater treatment plant serving the town of Immingham in North East Lincolnshire, England. With a population equivalent of 13,658, it falls within the medium agglomeration category under UK and EU regulatory frameworks. The plant is situated near the Humber Estuary, a major industrial and ecological zone. Under the UK's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), treatment plants serving between 10,000 and 150,000 population equivalent are generally required to provide secondary treatment. The plant's designed capacity is 1.00 (likely in megalitres per day or similar unit), indicating a facility sized for its catchment. The plant's treated effluent discharges into the Humber Estuary, which flows into the North Sea. The Humber Estuary is a vital habitat for migratory birds and supports diverse aquatic life, including fish species such as salmon and eel. The estuary is designated as a Site of Special Scientific Interest (SSSI) and is ecologically sensitive due to its intertidal mudflats and saltmarshes.

IMMINGHAM STW discharges into the Humber Estuary, a major tidal estuary on the east coast of England that drains into the North Sea. The estuary supports important bird populations and fish nurseries, making it ecologically sensitive. The plant's location within 50 km of the coast means its discharge can influence coastal water quality, particularly under low-flow conditions.