The choice of location for a community water treatment plant using the AHP method

The aim of the research was to identify the location of the local sewage treatment plant with use of hierarchical multi-criteria analytical analysis: AHP (Analytical Hierarchy Process) taking into account the technical, economic, and social criteria. The analysis was carried out for the rural commune of Szumowo (Zambrów district) which since 2016 forms an agglomeration. According to the Functional and Utility Programme a sewage treatment plant with a capacity of 350 m3/d was proposed, taking into account 4 location variants with an area of approx. 1.3 ha.