The direct objective of the project is to increase the population using the waste water treatment system in the Dynów Agglomeration.The general objectives of the project are: increasing the quality of life of the inhabitants of the municipality, improving the attractiveness of the area for economic investments, reduced environmental pollution with particular emphasis on the San River.The subject of the project is the construction of a sanitary sewage system in Dynów at ul. Bartkówka along with the construction of a passage under the San River floor with a sanitary channel and an extension of the municipal sewage treatment plant with a photovoltaic installation with a power of 36.9 kWp. Due to the different terrain, it is predicted to use a gravity and pressure sewer system with 3 sewage network pumping stations and 1 home pumping station. All waste water from the area under consideration will flow to the sewage pumping station through gravitational channels. The compression cable will be made from the pumping station to the place of inclusion in the pressing sewage system. Using this sewage system, sewage will be pumped to the main pumping station located next to the building of the Volunteer Fire Service in Dynów, from which they will then be pressed to the sanitary sewer at ul. Beach and then to the municipal sewage treatment plant in Dynowo. The total length of the planned sewerage network as part of this task will be 14 326.50 m, including 13 220 m of gravitational network and 1 106.5 m of the discharge network. The number of sewage connections will be 194 pieces.As a result of the project, the volume of the wastewater load undergoing improved treatment will be 852 p.e.