The paper deals with auditing the technical condition of the Water Distribution Systems (WDS) and its individual elements. The paper presents the methodology of determining the operating and technical indicators (TI) for a preliminary assessment of the technical elements of WDS (pumping stations, water tanks, transmission mains, water distribution networks) and its implementation in two pumping stations, the necessary data and system of TI evaluation using the multi-objective optimisation and

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... EA method. The proposed methodology allows the selection and ranking of WDS critical elements for more detailed analysis and suggestions for the type of renewal, including the expected financial costs.