COV Lehota pod Vtacnikom - Secondary Wastewater Treatment Plant in Lehota pod Vtáčnikom, Slovakia

COV Lehota pod Vtacnikom is a municipal wastewater treatment plant located in Lehota pod Vtáčnikom, Trenčiansky kraj, Slovakia. The plant serves a population of approximately 1,602, placing it in the small agglomeration category under Slovak regulations. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. It has a designed capacity of 3,330 m³/day and currently discharges an average of 327.86 m³/day of treated wastewater. The treated effluent is discharged into local watercourses that ultimately drain into the Váh River basin, a major tributary of the Danube River. The plant plays a key role in protecting the water quality of the surrounding streams and the broader Danube catchment.

The plant discharges into the Váh River basin, which flows into the Danube River and eventually the Black Sea. The Váh is the longest river in Slovakia and supports diverse aquatic life, including fish species such as barbel and chub. The plant's secondary treatment helps reduce organic pollution and nutrient loads, protecting downstream ecosystems.