Under the contract, worn-out equipment was replaced, energy consumption was optimised, and the safety of use of the facilities was improved. The modernization covered the first stage pumping station located on the premises of the Water Treatment Plant (SUW) of the Northern Plant in Wieliszew and the third degree pumping station and the BIS III degree pumping station – located at the Białołęka Zone Station in Warsaw. The scope of the contract included m.in 3 replacement of pumps with a total capacity of 27,000 m/h, renovation of a clean water tank with a capacity of 15,000 m³, repair and modernization of over 100 technological chambers, replacement of the main fittings with a diameter of 1200 mm and renovation of technological pipelines.