HAM HILL STW - Wastewater Treatment Plant in Tonbridge and Malling, Kent, UK

HAM HILL STW is a wastewater treatment plant located in Snodland, Kent, within the Tonbridge and Malling district of England, United Kingdom. It serves a population of approximately 56,101 people, placing it in the medium agglomeration category under UK and EU regulatory frameworks. As a UK wastewater facility, HAM HILL STW is subject to the Urban Waste Water Treatment (England and Wales) Regulations, which transpose the EU Urban Waste Water Treatment Directive. For agglomerations of this size, secondary treatment is typically required, with tertiary treatment in sensitive areas. The plant's designed capacity is 1.00 (likely in megaliters per day or similar units), indicating a scale appropriate for its population served. The plant's treated effluent is discharged into local water bodies that ultimately drain into the River Medway catchment and the Thames Estuary, which flows into the North Sea. This region supports diverse aquatic life and is important for migratory fish species. The plant plays a key role in protecting water quality in the Medway basin and downstream coastal environments.

The plant discharges into the River Medway catchment, which flows through Kent into the Thames Estuary and the North Sea. The Medway supports diverse freshwater and estuarine habitats, including important fish spawning and nursery areas. Downstream, the Thames Estuary is a major ecological corridor for migratory birds and marine species, making nutrient and pollutant control critical for maintaining water quality and biodiversity.