COV Rajhrad Wastewater Treatment Plant, Holasice, Jihomoravský kraj

COV Rajhrad is a municipal wastewater treatment plant located in Holasice, a village in the Jihomoravský kraj (South Moravian Region) of the Czech Republic. The plant serves a population of approximately 4,776 people, classifying it as a small to medium agglomeration under Czech and EU standards. The plant provides secondary treatment, which is the minimum required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for inland agglomerations of this size. The designed capacity is 5,000 m³/day, with a reported discharge volume of 660.27 m³/day, indicating operational headroom. The plant operates under Czech national regulations implementing the EU directive. Treated effluent is discharged into the local watershed, which ultimately drains into the Svratka River and then the Dyje River, part of the Danube basin. This water body supports diverse aquatic life and is important for regional water quality. The plant's operation helps protect downstream ecosystems from nutrient pollution.

The plant discharges into the Svratka River basin, which flows into the Dyje River and eventually the Danube River, reaching the Black Sea. This watershed supports diverse aquatic habitats and is used for recreation and agriculture. Effective secondary treatment is crucial to prevent eutrophication and maintain water quality in this ecologically sensitive river system.