COV Udica II Wastewater Treatment Plant, Udiča, Slovakia

COV Udica II is a wastewater treatment plant located in Udiča, within the Trenčiansky kraj region of Slovakia. The facility serves a very small population of 7 people, reflecting its role in a rural or remote community. The plant operates under Slovak national regulations, which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC) for small agglomerations. The plant provides primary treatment, which involves physical processes like sedimentation to remove settleable solids. With a designed capacity of 50 m³/day and an actual discharge volume of 1.43 m³/day, the plant operates well below its capacity. For small agglomerations under 2,000 population equivalent, the EU directive requires appropriate treatment, which may include primary treatment depending on the receiving water body sensitivity. The treated effluent is discharged into the local environment, likely into a small stream or river that flows into the Váh River basin. The Váh River is the longest river in Slovakia and ultimately drains into the Danube River, which flows into the Black Sea. The plant's location inland and its small scale minimize its impact on downstream ecosystems.

The plant discharges into a small watercourse within the Váh River basin, which flows into the Danube River and eventually reaches the Black Sea. The Váh River supports diverse aquatic life and is an important ecological corridor in the Carpathian region. The small discharge volume and primary treatment level mean the plant's impact is localized, but it contributes to the overall nutrient load in the watershed.