Dollar WWTW - Secondary Wastewater Treatment Plant in Dollar, Scotland

Dollar WWTW is a wastewater treatment works located in Dollar, Clackmannanshire, Scotland. The plant serves a population of around 2,763, making it a small agglomeration under Scottish Water's management. It is situated near the Devon Way and operates as part of the region's municipal wastewater infrastructure. The plant provides secondary treatment, which is the standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. The designed capacity is 3,050 m³/day, with an average daily flow of 615 m³, indicating ample headroom for current loads. Scottish Water, the public utility, oversees operations and compliance with Scottish Environment Protection Agency (SEPA) regulations. Treated effluent from Dollar WWTW is discharged into a local watercourse, likely the River Devon, which flows into the Forth Estuary and ultimately the North Sea. The plant plays a key role in protecting the water quality of the River Devon, which supports diverse aquatic life and is used for recreation. Its operation helps maintain the ecological health of the Forth catchment area.

Dollar WWTW discharges into the River Devon, a tributary of the Forth Estuary, which flows into the North Sea. The River Devon supports a mixed fishery and provides habitat for salmon and trout. The Forth Estuary is an ecologically important area for migratory birds and marine life. The plant's secondary treatment helps reduce nutrient and organic loads, protecting downstream water quality in this sensitive coastal environment.