On behalf of environmentalists, the Executive Committee of Aksubayevsky district dismantled an underground pipe from which untreated sewage was illegally discharged into the Malaya Sulcha river. Let us recall that the inspectors of the Volga-Kama Territorial Administration during the monitoring of the Aksubayevsky district revealed the fact of wastewater discharge into the Malaya Sulcha river. The drains had a characteristic white tint, the inspectors suggested that the Aksubaevsky oil factory could be a possible culprit of the pollution. The laboratory of the department carried out water sampling. According to the results of laboratory studies, exceedances of the maximum permissible concentrations for ammonium ion, COD, phosphate ion and petroleum products were detected. All materials were transferred to the Tatar environmental Interdistrict Prosecutor's Office for taking measures of the prosecutor's response. The Tatar environmental protection interdistrict prosecutor's office conducted an on-site inspection, after which the executive committee of the Aksubayevsky district was instructed to dismantle the illegal underground pipe from which the discharge into the river was carried out. At the moment, the violation has been eliminated.