COV Tachov Wastewater Treatment Plant, Tachov, Czech Republic

COV Tachov is a municipal wastewater treatment plant located in Tachov, a town in the Plzeňský kraj region of the Czech Republic. The plant serves a population of approximately 14,818, classifying it as a medium-sized agglomeration under EU regulations. Its location in the western part of the country places it within the drainage basin of the Mže River, which flows into the Berounka and ultimately the Vltava and Elbe rivers. As a plant serving a population equivalent of over 10,000, COV Tachov is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum standard. The Czech Republic implements this directive through national legislation, and plants of this scale are typically equipped with biological treatment stages to meet effluent quality standards for organic matter and suspended solids. The treated effluent from COV Tachov is discharged into the local watercourse, which is part of the Mže River basin. The Mže River flows through the Tachov region and eventually joins the Berounka, a tributary of the Vltava. The Vltava then flows into the Elbe, which drains into the North Sea. The plant plays a key role in protecting the water quality of these downstream rivers and the aquatic ecosystems they support.

COV Tachov discharges treated wastewater into the Mže River basin, which flows through the Plzeňský kraj region. The Mže River is a tributary of the Berounka, which joins the Vltava and eventually the Elbe, draining into the North Sea. The local watershed supports diverse aquatic life, including fish species such as brown trout and grayling, and the plant's treatment helps maintain water quality standards for these habitats.