Qualitative and quantitative parameters were systematized in the reports submitted by the public water supply systems according to thematic units, namely: (1) general data, (2) current state of water supply, (3) systematic control of hygienic drinking water, (4) system maintenance and interruptions in water supply, (5) existing sources, (6) planned sources, (7) alternative sources, (8) emergency water supply plan, (9) risk analysis and levels.