Overview
TP 766 of Siilinjarven kk serves 19,000 people in Siilinjärvi, Pohjois-Savo, Finland. The plant operates under Finland's national implementation of the EU Urban Waste Water Treatment Directive.
TP 766 of Siilinjarven kk is a municipal wastewater treatment plant located in Siilinjärvi, a town in the Pohjois-Savo region of eastern Finland. The plant serves a population of approximately 19,000 residents, placing it in the medium agglomeration category under EU classification. Its location near Lake Kallavesi and the Vuoksi watercourse system makes it an important facility for protecting local water quality. As a Finnish plant serving a population of 19,000, TP 766 is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. Finland has implemented this directive through national legislation, with oversight from regional ELY Centres. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating it is sized to handle the community's wastewater load. The plant's treated effluent is discharged into the local watershed, which ultimately drains into Lake Kallavesi and the Vuoksi River system. This watercourse flows through the Finnish lake district and eventually reaches the Gulf of Finland via the Neva River. The region's numerous lakes and rivers are ecologically sensitive, supporting diverse aquatic life and providing important habitats for fish and waterfowl.
Environmental context
The plant discharges into the Vuoksi watercourse system, which drains from Lake Kallavesi through a chain of lakes and rivers to Lake Ladoga in Russia and ultimately to the Gulf of Finland. This watershed is part of Finland's extensive lake district, characterized by nutrient-sensitive waters that can experience eutrophication from excess phosphorus and nitrogen. The region supports important fisheries, including pike, perch, and vendace, and provides habitat for migratory waterbirds.
Frequently asked questions
TP 766 of Siilinjarven kk is located in Siilinjärvi, a town in the Pohjois-Savo region of eastern Finland. The plant's address is on Räiskynniementie in the Jälä district.
The plant serves approximately 19,000 people, which classifies it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive.
The plant discharges treated effluent into the local watershed, which flows into Lake Kallavesi and then through the Vuoksi River system toward the Gulf of Finland.
As a Finnish plant serving over 10,000 people, TP 766 operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment and, in sensitive areas, additional nutrient removal.
For agglomerations of this size, Finnish plants typically provide secondary biological treatment with phosphorus removal, as required by the EU directive and national regulations to protect sensitive lake ecosystems.
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