GLENEAGLES STW - Secondary Wastewater Treatment Plant in Auchterarder, Scotland

GLENEAGLES STW is a wastewater treatment plant located near Auchterarder in Perth and Kinross, Scotland, United Kingdom. The facility serves a population of around 3,500 people and operates as a secondary treatment plant, which is the standard level required under the EU Urban Waste Water Treatment Directive for inland agglomerations of this size. The plant has a designed capacity of 3,500 m³/day and discharges an average volume of 779.22 m³/day. As a secondary treatment facility, it uses biological processes to reduce organic matter and suspended solids, meeting the regulatory standards set by the Scottish Environment Protection Agency (SEPA) under the Water Environment and Water Services (Scotland) Act 2003. The treated effluent is discharged into a local watercourse that flows into the River Earn, which eventually reaches the Firth of Tay and the North Sea. The plant plays a key role in protecting the water quality of these downstream environments, supporting aquatic life and recreational uses in the region.

The plant discharges into a tributary of the River Earn, which flows eastward into the Firth of Tay, a major estuary on Scotland's east coast. The Firth of Tay is an ecologically important area that supports diverse bird populations, salmon fisheries, and seal colonies. The plant's secondary treatment helps reduce nutrient loading and organic pollution, safeguarding the health of this sensitive downstream ecosystem.