Complex water quality improvement project completed in Tápiószőlős

Preparation and commencement of construction

The contract for the modernisation of the drinking water supply in the municipality of Pest County came into force in January 2023. The first phase of the work involved the preparation of the permit and implementation plans, which was also one of the tasks of KE-VÍZ 21 Zrt., one of the leading construction companies of the past. This was followed by ammunition clearance and archaeological work, which went smoothly.

Technical objectives of the development

The aim of the investment was to ensure that the quality of the drinking water supplied in the affected area – primarily with regard to the five components that have a significant impact on water quality (arsenic, boron, fluoride, nitrite and ammonium) – complies with the parameters and limit values set out in the government decree.

The water reservoir and waterworks are located in the Tiszamenti Regionális Vízművek Zrt. service area, and the facility is also operated by the company.

Renewal of wells, technology and reservoirs

Tápiószőlős' water supply was previously provided by four deep wells, two of which were operational and two of which were out of service. As part of the project, a new drinking water well was drilled at the waterworks, well No. 4 was renovated, and the other wells were decommissioned. Edit Tuza, project manager of KE-VÍZ 21 zRt., said:

The waterworks building was expanded by 60 square metres to accommodate the new complex purification technology with a capacity of 24 cubic metres per hour, which removes iron, manganese, arsenic and ammonium. As part of the new waterworks infrastructure, a modern control system has been installed in addition to the electricity, drinking water, sewage and waste water drainage systems.

During the investment, a new water storage tank with a usable volume of 2×50 cubic metres and a 60 cubic metre decanting basin were constructed. The existing network, flushing water and sludge pumps were replaced.

Network development and water tower renovation

As part of the network reconstruction, network nodes were renovated and the existing NA100 pipeline was replaced over a length of 910 metres using pipe bursting technology. The contractor was also responsible for flushing the existing network over a length of 24,830 running metres and renovating the 100 cubic metre water tower.

Healthy drinking water for the population

The aim of the project is to provide the inhabitants of the village with healthy drinking water in the long term. Prior to the development, the quality of the water supplied did not meet the requirements of the relevant government decree in terms of iron, manganese and ammonium content, and the water supply operated in raw water mode. Following the installation of water treatment technology, iron, manganese and ammonium removal and disinfection are carried out.

The investment concluded with a trial run, which ended in September 2025.