DISS STW Wastewater Treatment Plant, Diss, Norfolk, United Kingdom

DISS STW is a wastewater treatment plant located in Diss, a market town in Norfolk, England. The facility serves a population of around 14,063, classifying it as a medium-sized agglomeration under UK regulatory frameworks. The plant is situated inland, approximately 50 km from the coast, and discharges into local watercourses that eventually drain to the North Sea. As a UK wastewater facility, DISS 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 agglomerations of this size, secondary treatment is typically required, with tertiary treatment in sensitive areas. The treated effluent from DISS STW is discharged into the River Waveney or its tributaries, which flow through the Norfolk Broads and ultimately into the North Sea. The receiving waters support diverse aquatic life and are part of a regionally important wetland ecosystem. The plant plays a key role in protecting water quality in this sensitive environment.

DISS STW discharges into the River Waveney catchment, which flows through the Norfolk Broads, a network of rivers and lakes, before reaching the North Sea. This area supports diverse aquatic habitats and is ecologically sensitive due to its wetland character and biodiversity. The plant's treatment helps maintain water quality in this important downstream environment.