The catalogue of geological survey reports consists of the results (reports) of geological mapping, in-depth surveys, seismological monitoring, ecogeological surveys, hydrogeological surveys, underground hydrosphere monitoring and other geological surveys. Geological surveys include drilling of wells, geophysical or engineering geological (geotechnical) surveys, rock, water and other samples that reveal factual data on subsoil layers and their properties, extent of surface pollution, groundwater quality and soil suitability (e.g. , for foundations of multi - purpose buildings).