OLDMELDRUM WWTP - Secondary Treatment Plant in Oldmeldrum, Scotland

OLDMELDRUM WWTP is a municipal wastewater treatment facility located near Lochter Activity Centre in Oldmeldrum, Aberdeenshire, Scotland. The plant serves a population of approximately 3,252 people, classifying it as a small agglomeration under Scottish and UK regulations. The plant provides secondary treatment, which is the standard required by the Urban Waste Water Treatment (Scotland) Regulations 1994, transposing the EU Urban Waste Water Treatment Directive. With a designed capacity of 3,500 m³/day, the plant operates well within its capacity, treating an average daily flow of 724.01 m³/day. The treated effluent is discharged into local watercourses that drain into the River Don catchment, eventually reaching the North Sea. The plant plays a key role in protecting the water quality of the River Don and its tributaries, which support diverse aquatic life and are used for recreation and agriculture.

The plant discharges into the River Don catchment, which flows eastward through Aberdeenshire to the North Sea at Aberdeen. The River Don is a designated salmonid river supporting Atlantic salmon and brown trout populations. The secondary treatment provided by the plant helps maintain water quality standards in this ecologically sensitive river system, which is important for both biodiversity and local fisheries.