Proper functioning of the drainage system is an extremely important aspect of creating a safe environment and includes not only ensuring the disposal of used water, but also preventing environmental pollution, the spread of diseases and creating comfortable living conditions. The existing drainage system of the village of Gvardiyske and KNS 4 was built in the 1960s, and has long been in need of comprehensive reconstruction, restoration and modernization. The purpose of implementing this project is to provide the population with the necessary conditions for exercising their rights to receive high-quality centralized drainage while simultaneously reducing the negative impact of wastewater on the environment.     The development of the project is due to:     - unsatisfactory technical condition and wear and tear of the fixed assets of the centralized drainage system;     - the use of outdated technologies and equipment in the centralized drainage system;     - high energy consumption in the system, which increases tariffs for centralized wastewater;     - limited investment and shortage of financial resources necessary for community development;     - possible sharp environmental pollution, which may have adverse consequences for aquatic ecosystems, including the death of fish and other aquatic organisms, as well as contamination of drinking water. The project provides for: -  reconstruction of technological pipelines in the machine room of the building of sewage pumping station No. 4, dismantling of the old pump, installation of 2 new frequency pumps - main and backup; -  laying a section of 160 mm pressure sewerage in two threads from chamber KV-1 near sewage pumping station No. 4 in the village of Gvardiyske to the receiving tank located near sewage pumping station No. 3 in the town of Chornomorske; -  reconstruction of the building of the sewage pumping station No. 4. The designed sewage network is laid to allow the drainage of wastewater from residential and public facilities. In this regard, the impact on the social environment can be assessed as positive. When designing the pressure sewerage, polyethylene pipes were used, which have an estimated service life of 50 years, which is significantly higher than that of steel pipes - 25 years. The use of such construction technology allows significantly reducing material and time costs for construction and maintenance in order to ensure uninterrupted drainage. This project will ensure effective maintenance of the site being relocated, thanks to the installed modern pipeline system and will help prevent leaks. Impact on the man-made environment - none. Impact on the geological environment - none. Impact on flora and fauna - none.