Kalinowiec Wastewater Treatment Plant, Kucice, Mazowieckie, Poland

Kalinowiec wastewater treatment plant is located in Kucice, a village in the gmina Dzierzążnia, powiat płoński, within the Mazowieckie voivodeship of Poland. The plant was designed with a capacity of 1,387 cubic meters per day and provided secondary treatment for the local population. It is now closed and no longer operational. As a secondary treatment facility, Kalinowiec would have met the standards required under Polish regulations, which align with the EU Urban Waste Water Treatment Directive (91/271/EEC). This directive mandates secondary treatment for agglomerations of a certain size, ensuring the removal of organic matter and suspended solids from wastewater before discharge. The plant's discharge would have entered local watercourses that drain into the Vistula River basin, ultimately reaching the Baltic Sea. The Mazowieckie region is characterized by agricultural land and small water bodies, making proper wastewater treatment important for protecting local ecosystems and groundwater quality.

Kalinowiec is situated inland in the Mazowieckie region, far from the Baltic coast. The local watershed drains into the Vistula River, which flows northward into the Baltic Sea. The area supports diverse aquatic life in small streams and rivers, and proper wastewater treatment helps prevent nutrient pollution that could affect downstream ecosystems.