COV Jablunkov Wastewater Treatment Plant, Návsí, Czech Republic

COV Jablunkov is a municipal wastewater treatment plant located in Návsí, a village in the Moravskoslezský kraj region of the Czech Republic, near the border with Poland. The plant serves a population of approximately 8,655 people, placing it in the small to medium agglomeration category under EU classification. As a Czech facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The Czech Republic has transposed this directive into national law, and plants serving between 2,000 and 10,000 population equivalents are typically expected to meet secondary treatment standards. The treated effluent from COV Jablunkov is discharged into the local watershed, which ultimately drains into the Olše River, a tributary of the Oder River. The Oder River flows northward through Poland and into the Baltic Sea via the Szczecin Lagoon. The plant plays a role in protecting the water quality of the Olše River and downstream ecosystems.

COV Jablunkov discharges into the Olše River basin, which flows into the Oder River and eventually reaches the Baltic Sea via the Szczecin Lagoon. The Olše River supports diverse aquatic life and is an important migratory corridor for fish species. The plant's treatment helps maintain water quality in this transboundary river system, which is ecologically sensitive due to its role in connecting inland habitats with the Baltic Sea.