The project will be implemented in the area of two settlements – Osiedle Borek Niski and Osiedle Centrum. Borek Niski estate: The material scope of the task includes the construction of a water retention system for the Borek Niski estate in Mielec, which consists of: — reconstruction of the rainwater drainage system, construction of a storage tank with a capacity of about 2300 m³, construction of rainwater pumping stations and melt water. Task No.I of the Centre housing estate includes the construction of a system of rainwater retention and meltwater retention system for the Centre housing estate in Mielec, including rainwater drainage and storage tanks, construction of an energy connection for rainwater pumping, construction of a rainwater retention system with ZB2, ZB3 reservoir with gravitational drainage and ZB4 with pumping, reconstruction of the section of the existing rain collector, construction of the drainage system. Solskiego) – task No II The scope of the task includes further construction of rainwater retention and meltwater system for the Mielec Centre housing estate in the area of construction of rainwater drainage with storage tank, reconstruction of existing water supply, construction of a control system for rainwater pumping plant, construction of a rainwater retention system with a reservoir with pumping pumping through P1, construction of a drainage system of parking spaces with a subsystem system.