TP 758 of Savonlinnan kt Wastewater Treatment Plant, Savonlinna, Finland

TP 758 of Savonlinna kt is a municipal wastewater treatment plant located in Savonlinna, within the Etelä-Savo region of Finland. The plant serves a population of approximately 26,000 residents, making it a medium-sized facility under Finnish wastewater management standards. Its location in the Finnish lake district places it in an ecologically sensitive area where water quality is paramount. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants serving agglomerations of this scale are required to provide secondary treatment as a minimum. Finland applies this directive rigorously, with additional national regulations that often mandate advanced treatment in sensitive areas such as the Saimaa lake system. The plant's designed capacity is 1.00 (likely in thousand cubic meters per day), indicating it is sized to handle the local population's wastewater load. The treated effluent from the plant is discharged into the local watershed, which ultimately drains into the Saimaa lake system, the largest lake network in Finland. This water body is a vital ecological resource, supporting diverse aquatic life and serving as a key recreational and economic asset. The plant's operation helps protect downstream water quality in the Vuoksi River basin, which flows into Lake Ladoga in Russia.

The plant discharges into the Saimaa lake system, part of the Vuoksi River basin that drains into Lake Ladoga. The Saimaa region is ecologically sensitive, hosting rare species such as the Saimaa ringed seal. Protecting water quality here is critical for maintaining biodiversity and supporting local communities that rely on the lakes for drinking water, fishing, and tourism.