Residents of Kazan expressed concern about the drainage of sewage into Sredny Kaban Lake in social networks. Employees of the Central Territorial Administration of the Ministry of Ecology and Natural Resources of the Republic of Tatarstan left for the place and examined this territory, water samples were taken. During the audit, it turned out that sewage flows from the ownerless well and it must be registered. It was established that through the court the well will be transferred to the balance of the city.