Troqueer STW - Dumfries Wastewater Treatment Plant, Scotland

Troqueer STW is a wastewater treatment plant located in Dumfries, Scotland, serving a population of around 44,000. The plant is situated near the River Nith and plays a key role in managing municipal wastewater for the area. As a plant serving over 10,000 people, Troqueer STW is subject to the Urban Waste Water Treatment (Scotland) Regulations, which implement the EU Urban Waste Water Treatment Directive. These regulations require secondary treatment for discharges to freshwater and estuaries, and more stringent treatment if the receiving waters are sensitive. The treated effluent from Troqueer STW is discharged into the River Nith, which flows south into the Solway Firth, an important estuary and inlet of the Irish Sea. The Solway Firth supports diverse wildlife, including migratory birds and fish, and is designated as a Site of Special Scientific Interest (SSSI) for its ecological importance.

Troqueer STW discharges into the River Nith, which flows into the Solway Firth, a large estuary on the west coast of Scotland. The Solway Firth is an ecologically sensitive area, supporting diverse aquatic life and serving as a key migratory corridor for birds and fish. The plant's operations are critical to maintaining water quality in this downstream environment.