Chantry STW - Ipswich, Suffolk Wastewater Treatment Plant | United Kingdom

Chantry STW is a wastewater treatment plant located in Stoke Park, Ipswich, Suffolk, England. It serves a population of around 18,590, classifying it as a medium-sized agglomeration under UK regulatory frameworks. The plant is situated inland but within 50 km of the coast, influencing its discharge considerations. As a UK wastewater facility, Chantry STW operates under the Urban Waste Water Treatment (England and Wales) Regulations, which transpose the EU Urban Waste Water Treatment Directive 91/271/EEC. For a population equivalent of this scale, secondary treatment is typically required, with additional nutrient removal if discharging into sensitive areas. The treated effluent from Chantry STW likely discharges into a local watercourse that eventually reaches the North Sea via the River Orwell or the Gipping River system. The surrounding area includes the Suffolk Coast and Heaths Area of Outstanding Natural Beauty, though the plant itself is inland. The receiving waters support diverse aquatic life and are important for local biodiversity.

Chantry STW discharges into the River Orwell catchment, which flows into the Orwell Estuary and then the North Sea. The estuary is a designated Site of Special Scientific Interest (SSSI) supporting migratory fish, wading birds, and saltmarsh habitats. The plant's location within 50 km of the coast means its nutrient discharges could contribute to coastal eutrophication, making effective treatment important for protecting downstream marine ecosystems.