Laka Wastewater Treatment Plant, Łąka | Podkarpackie, Poland

Laka wastewater treatment plant is located in Łąka, a village in the Podkarpackie Voivodeship of southeastern Poland. The facility serves a population of approximately 5,790, placing it in the small-to-medium agglomeration category under Polish and EU regulations. The plant provides secondary treatment, which meets the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for inland agglomerations of this size. Its designed capacity of 12,000 m³/day indicates headroom for future growth, while current discharge volume averages 825.56 m³/day. Treated effluent from the plant flows into local waterways that eventually drain into the Wisłok River, a tributary of the San River, which joins the Vistula River and ultimately reaches the Baltic Sea. The facility plays a key role in protecting the region's surface water quality and supporting the ecological health of the Vistula basin.

The plant discharges into the Wisłok River catchment, part of the Vistula basin that drains into the Baltic Sea. This watershed supports diverse aquatic life and is important for migratory fish species. The region's moderate climate and agricultural land use require effective nutrient removal to prevent eutrophication in downstream waters.