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Home > Science and research > Natural resources > Ground waters > Hydrogeological mapping

Hydrogeological mapping

The aim of hydrogeological mapping is to build up a comprehensive knowledge of the distribution and behaviour of ground and surface waters in relationship to topography, drainage and underlying geology of a given area. Important catchments, areas of infiltration and aquifers are identified so that the regionally important hydrogeological structures can be defined. The conditions that govern infiltration, accumulation and recharge are evaluated. Hydrogeological maps contain also information about hydrogeological parameters of the rock environment as well as important information about chemical composition and quality of groundwater that are used to determine their suitability for different purposes.

Groundwater is an essential natural resource required for domestic, agricultural and industrial use. Hydrogeological maps provide the data required to plan optimum use and protection of groundwater resources. The maps are used by national and local government authorities and the private sector for land use planning, sanitation measures, and generally for the protection of the natural environment.

Since 2008, hydrogeological mapping has formed an integral part of the CGS programme of geological mapping at a scale of 1:25,000. Purpose-designed hydrogeological maps, hydrogeological sketches and explanatory notes describing the hydrogeological conditions have been compiled for selected map sheets. Methodology for the compilation of hydrogeological maps and the effective depiction of the information on them has been developed simultaneously.

An extract from the hydrogeological map of Sheet 25-231 Rožnov pod Radhoštěm

An extract from the hydrogeological map of Sheet 25-231 Rožnov pod Radhoštěm.

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Česká geologická služba
Leitnerova 204/22
602 00 Brno
tel.: +420543429271