WFOŚiGW w Gdańsku – Szlamnik
Development of design documentation and construction of a wastewater transit system to the Słupsk agglomeration from remote localities of the Redzikowo municipality
Date of signing the co-financing agreement: 09.12.2024
Eligible costs of the project: PLN 8,600,000.00 net
WFOŚiGW grant: PLN 3,000,000.00 net
WFOŚiGW loan: PLN 4,500,000.00 net
Own funds: PLN 1,100,000.00 net
Co-financed by the Regional Fund for Environmental Protection and Water Management (WFOŚiGW) in Gdańsk under the program “Szlamnik – improving the operating efficiency of wastewater treatment plants”.
Project Objectives:
The investment aims to equalize living standards across the entire area of the Company’s sewerage operations and to ensure the availability of sewerage services for all residents of the Redzikowo municipality. The priority is to implement the principle of social justice for all residents and to ensure the affordability of the provided sewerage services.
The execution of the task will contribute to improving environmental quality standards and reducing environmental pollution by:
- creating possibilities for treating wastewater from new development areas of the Redzikowo municipality located outside the agglomeration at the wastewater treatment plant in Słupsk (350,000 PE) featuring the highest quality standards, along with safe sludge management;
- unlocking socio-economic development within the catchment area of the existing collector, which will help reduce illegal discharges from activities operating outside the sewerage system (without respecting the issued technical connection conditions);
- eliminating uncontrolled overflows from the overloaded Bydlino – Słupsk wastewater treatment plant sewerage system, especially during weather events in Natura 2000 areas;
- eliminating odor phenomena, i.e., accelerated corrosion and wear of sewerage equipment, as well as health and safety hazards for service personnel;
- improving the energy efficiency of the wastewater transit system.
Project Scope:
The venture, consisting of the development of design documentation and the construction of a wastewater transit system from the locality of Bydlino and other localities of the Redzikowo municipality remote from the wastewater treatment plant, covers the area of the Słupsk agglomeration. Designing and constructing a sufficiently efficient transit system will accommodate development needs and additionally solve existing hydraulic and odor problems in the localities along the route to the treatment plant. The planned route of the sewage collector will be located within the cadastral districts of: Bydlino, Włynkówko, Włynkowo, Swochowo, Siemianice in the Redzikowo Municipality, and district no. 0002 in Słupsk. The area where the investment will be implemented is partially developed, predominantly with residential housing; a part consists of agricultural and forest land. A crossing of the collector under the Słupia River is planned.
It is anticipated that within the next 3 years, approximately 150 additional people from the localities of Bydlino, Włynkowo, and Włynkówko will connect to the constructed network.
The expected scope of the investment includes:
- development of design documentation along with obtaining the necessary approvals and permits;
- construction of a PE225 discharge pipeline with a length of approx. 7,900 m from the existing PE200 sewer to the distribution chamber at the wastewater treatment plant, and from the designed wastewater pumping station at Orzechowa Street in the area of Słupska Street in Bydlino using PE 110 pipes – approx. 50 m;
- construction of one network wastewater pumping station;
- reconstruction of two existing network pumping stations in the locality of Bydlino (replacement of pumps, control systems, metering, visualization of the status and operating parameters of the facilities).
Executing this investment scope will eliminate existing hydraulic problems, enable the connection of new customers, and allow for the economic development of areas located close to the coastal zone.
The implementation of the investment will contribute to preventing the negative impact of hydrogen sulfide which, apart from social issues, also causes sudden and dangerous phenomena related to network operations and rapid corrosion of concrete surfaces and network equipment (automation, electrical components, metal surfaces, pump bodies and impellers, etc.).
The current risk of overflows from the overloaded transit network affects Natura 2000 areas directly adjacent to the Słupia River from the locality of Włynkówko all the way to the wastewater treatment plant in Słupsk.
The investment will also relieve the sewage collector along Portowa Street, increasing its capacity to receive industrial wastewater from fish processing plants currently operating in the economic zone and expanding their processing potential.
Planned project completion date: June 2028