TP 13 of Vaaksy Wastewater Treatment Plant, Asikkala, Finland

TP 13 of Vaaksy is a wastewater treatment plant located in Asikkala, within the Päijät-Häme region of Finland. The plant serves a population of approximately 6,600 people, classifying it as a small to medium agglomeration under EU regulations. Its location near Lake Päijänne places it in a sensitive freshwater environment. Finland implements the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwater. For sensitive areas like the Lake Päijänne catchment, more stringent treatment may be required to protect water quality. The plant's designed capacity is 1.00 (likely in thousand cubic meters per day), indicating adequate infrastructure for its service population. The plant's treated effluent ultimately discharges into the Kymijoki river basin, which drains into the Gulf of Finland. This watershed supports diverse aquatic life and is important for regional water supply and recreation. Proper treatment at this facility helps maintain the ecological health of downstream water bodies.

The plant is situated in the Lake Päijänne catchment, part of the Kymijoki river basin that flows into the Gulf of Finland. This watershed is ecologically sensitive, supporting diverse fish populations and serving as a vital water resource for southern Finland. The region's cold climate and seasonal variations require robust treatment to prevent nutrient loading and algal blooms in downstream lakes and coastal waters.