10.4122/1.1000001322 Trcek, B. Juren, A. Hydrogeological investigations at an urban area of Union Brewery, Ljubljana, Slovenia DTU Library, Technical University of Denmark (DTU) 2005 Urban lysimeter Pleistocene alluvial gravel aquifer Flow system Solute transport Geological Survey of Slovenia Geosi d.o.o. Geological Institute en Conference full text 10.4122/1.1000001321 application/pdf 1 An urban lysimeter has been constructed within a highly urbanised and industrialised area at Union Brewery in Ljubljana (the capital of Slovenia) with the intention of monitoring and controlling the environmental impacts of industry and traffic on Pleistocene alluvial gravel aquifer, which is an invaluable groundwater resource of the brewery. The physico-chemical and isotopic properties of sampled groundwater have produced general information on the hydrodynamic functioning of the study area and on solute transport \342\200\223 the main flow components, the flow hierarchy and the environmental response to the flow system have been indicated. Two important flow types were identified - lateral and vertical flow. The former has an important role in groundwater protection, while the latter is the main influence on contaminant transport towards the aquifer saturated zone.