COV Markusovce Jarecek Wastewater Treatment Plant, Markušovce, Slovakia

COV Markusovce Jarecek is a wastewater treatment plant located in the Jareček area of Markušovce, in the Košický kraj region of eastern Slovakia. The plant serves a small community of 294 people, reflecting its role in a rural or small-town setting. The plant provides secondary treatment, which is the standard biological treatment stage required under the EU Urban Waste Water Treatment Directive for agglomerations of this size. Indicating the plant's potential to handle higher loads if needed. The treated effluent is discharged into the local watershed, which ultimately drains into the Hornád River basin and then into the Tisza River system, a major tributary of the Danube. This connection to the Danube basin highlights the plant's role in protecting downstream water quality in a transboundary river system.

The plant discharges into the Hornád River basin, part of the larger Tisza and Danube river systems. The receiving waters support diverse aquatic life and are important for regional biodiversity. The plant's secondary treatment helps reduce organic pollution and nutrient loads, protecting downstream ecosystems in this Carpathian region.