Kelso WWTW - Wastewater Treatment Plant in Kelso, Scottish Borders, United Kingdom

Kelso WWTW is a wastewater treatment plant located on the A698 in Wooden Mill, Kelso, Scottish Borders, Scotland. It serves a population of around 8,242 people, placing it in the small-to-medium agglomeration category under UK regulatory frameworks. The plant is situated near the River Tweed, a major river in the region. As a UK wastewater facility, Kelso WWTW operates under the Water Environment (Controlled Activities) (Scotland) Regulations, which implement the EU Urban Waste Water Treatment Directive requirements. For a plant serving this population size, secondary treatment is typically required, with additional nutrient removal if discharging into a sensitive area. The plant's designed capacity is 1.00 (likely in megaliters per day or similar units), indicating it is sized to handle the local population's wastewater. The treated effluent from Kelso WWTW is discharged into the River Tweed catchment, which flows eastward into the North Sea at Berwick-upon-Tweed. The River Tweed is a renowned salmon and trout river, supporting diverse aquatic life and important for fisheries. The plant's operation is critical for maintaining water quality in this ecologically significant river system.

Kelso WWTW discharges into the River Tweed catchment, which flows into the North Sea. The River Tweed is a designated salmonid river, supporting populations of Atlantic salmon, sea trout, and brown trout. It is also an important migratory corridor for fish and supports a rich diversity of aquatic invertebrates. The plant's treatment performance directly affects water quality in the river and downstream estuary, influencing both ecological health and recreational uses such as fishing and angling.