Overview
UNDERWOOD STW serves Auchinleck, Scotland, treating wastewater for approximately 21,393 people. The plant operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
UNDERWOOD STW is a wastewater treatment plant located near Auchinleck in East Ayrshire, Scotland. It serves a population of approximately 21,393, placing it in the medium agglomeration category under UK regulatory frameworks. Under the Urban Waste Water Treatment Directive (transposed into UK law), agglomerations of this size typically require secondary treatment as a minimum standard, with tertiary treatment in sensitive areas. The treated effluent from UNDERWOOD STW likely discharges into local watercourses that drain into the River Ayr or its tributaries, eventually reaching the Firth of Clyde. This coastal estuary supports diverse aquatic life and is an important area for migratory fish species.
Environmental context
The plant's receiving waters ultimately flow into the Firth of Clyde, a major sea inlet on Scotland's west coast. The Firth supports important fisheries and bird populations, and its water quality is influenced by both urban and agricultural runoff. The watershed includes the River Ayr system, which provides habitat for Atlantic salmon and sea trout.
Frequently asked questions
UNDERWOOD STW is located near Auchinleck in East Ayrshire, Scotland, with the address Terringzean Castle, A76, Holmhead, Auchinleck, KA18 2LJ.
The plant serves approximately 21,393 people, classifying it as a medium-sized agglomeration under UK wastewater regulations.
Treated effluent from UNDERWOOD STW is discharged into local watercourses that drain into the River Ayr system, eventually reaching the Firth of Clyde.
The plant operates under UK regulations derived from the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size.
For agglomerations of this scale, secondary treatment is the standard requirement, with additional nutrient removal if the receiving waters are in a sensitive area.
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