Inspectors of the South-Eastern Territorial Administration of the Ministry of Ecology and Natural Resources of the Republic of Tatarstan began checking the quality of wastewater discharged by one of the Leninogorsk enterprises back in January 2020. At the discharge point, samples were taken from the treatment facilities, which showed exceeding of the standards for ammonium by 1.6 times, nitrites - 9.4 times, phosphates - 18.3 times, chlorides - 2.4 times, sulfates - 2 times. On this fact, a protocol was drawn up against the legal entity on the commission of an administrative offense under Part 4 of Article 8.13 of the Administrative Code.