Overview
TP 386 of Lapinlahden kk serves Lapinlahti, Pohjois-Savo, Finland, treating wastewater for approximately 87,000 people under EU Urban Waste Water Treatment Directive standards.
TP 386 of Lapinlahden kk is a municipal wastewater treatment plant located in Lapinlahti, within the Pohjois-Savo region of Finland. The facility serves a population of approximately 87,000, classifying it as a large agglomeration under EU regulations. Its location in the Finnish lake district places it in a region with numerous inland water bodies and sensitive aquatic ecosystems. As a Finnish plant serving over 10,000 population equivalent, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment as a minimum, with tertiary treatment required for discharges into sensitive areas. The plant's designed capacity is 1. Indicating a substantial infrastructure to handle the region's wastewater load. Finland's regulatory framework, enforced by regional ELY Centres, ensures compliance with strict nutrient removal standards, particularly for phosphorus and nitrogen, to protect the Baltic Sea. The treated effluent is discharged into local watercourses that ultimately drain into the Baltic Sea via the Vuoksi River basin or other regional watersheds. The plant plays a critical role in safeguarding the water quality of downstream lakes and rivers, which support diverse aquatic life and are used for recreation and fishing. Its operation helps mitigate eutrophication risks in the sensitive Baltic Sea ecosystem.
Environmental context
The plant discharges into the inland watershed of Pohjois-Savo, which feeds into the Vuoksi River system and eventually the Gulf of Finland, part of the Baltic Sea. The Baltic Sea is a brackish, semi-enclosed sea highly sensitive to nutrient pollution, making advanced treatment essential. The surrounding lake district supports diverse aquatic habitats and is an important migratory corridor for birds.
Frequently asked questions
TP 386 of Lapinlahden kk is located in Lapinlahti, Pohjois-Savo, Finland, in the Ylä-Savon seutukunta region.
The plant serves approximately 87,000 people, classifying it as a large agglomeration under EU regulations.
The treated effluent is discharged into local watercourses that drain into the Vuoksi River basin and ultimately the Baltic Sea.
As a plant serving over 10,000 population equivalent, it must meet secondary treatment standards, with tertiary treatment required if discharging into sensitive areas like the Baltic Sea catchment.
Finnish plants of this scale typically employ biological treatment with nutrient removal (phosphorus and nitrogen) to meet strict discharge limits set by regional ELY Centres under the EU UWWTD.
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