Overview
Miejska oczyszczalnia sciekow w Plonsku serves approximately 37,230 people in Poświętne, Poland. The plant operates under Polish regulations implementing the EU Urban Waste Water Treatment Directive.
Miejska oczyszczalnia sciekow w Plonsku is a municipal wastewater treatment plant located in Poświętne, within the Płońsk district of Mazowieckie Voivodeship, Poland. The facility serves an estimated population of 37,230, classifying it as a medium-sized agglomeration under Polish and EU standards. As a plant in Poland, it operates under the national implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this scale, the directive requires at least secondary biological treatment. The plant's discharge must comply with Polish water law permits issued by the regional water management authority. The treated effluent is discharged into local watercourses that drain into the Wkra River, a tributary of the Narew River, which flows into the Vistula River and ultimately reaches the Baltic Sea. The plant plays a key role in protecting the Wkra and Narew river ecosystems from nutrient pollution.
Environmental context
The plant discharges into the Wkra River basin, part of the larger Narew and Vistula river system that drains into the Baltic Sea. The Wkra River supports diverse aquatic life and is an important ecological corridor. Downstream, the Narew River includes ecologically sensitive floodplain areas that rely on good water quality for biodiversity. The Baltic Sea is highly sensitive to nutrient inputs, making effective treatment at this plant critical for reducing eutrophication.
Frequently asked questions
The plant is located in Poświętne, within the Płońsk district of Mazowieckie Voivodeship, Poland.
The plant serves approximately 37,230 people, classifying it as a medium-sized agglomeration under EU standards.
Treated effluent is discharged into local watercourses that drain into the Wkra River, a tributary of the Narew River, which flows into the Vistula and ultimately the Baltic Sea.
The plant operates under Polish regulations implementing the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size.
Under the EU UWWTD, plants serving between 10,000 and 100,000 population equivalent are required to have at least secondary biological treatment, with possible nutrient removal if discharging into sensitive areas.
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