COV Zbiroh Wastewater Treatment Plant, Zbiroh, Plzeňský kraj, Czech Republic

COV Zbiroh is a municipal wastewater treatment plant located in the town of Zbiroh, within the Plzeňský kraj region of the Czech Republic. The facility serves a population of about 1,000 residents, providing secondary treatment to ensure compliance with national and European Union environmental standards. The plant operates under the Czech Republic's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. With a designed capacity of 3,000 cubic meters per day and a current discharge volume of 320 cubic meters per day, the plant has ample capacity to handle current and future loads. Treated effluent from COV Zbiroh is discharged into the local watershed, which ultimately drains into the Berounka River and then the Vltava River, a major tributary of the Elbe River that flows into the North Sea. The plant plays a key role in protecting the water quality of these downstream water bodies and supporting the region's aquatic ecosystems.

The plant discharges into the local stream network that feeds the Berounka River, a significant watercourse in the Plzeňský kraj region. The Berounka flows into the Vltava River, which joins the Elbe River and eventually reaches the North Sea. This watershed supports diverse aquatic life and is important for regional biodiversity, including fish populations and riparian habitats. The secondary treatment provided by the plant helps reduce nutrient and organic pollutant loads, mitigating eutrophication risks in downstream waters.