Présentations Colloques

Flash Poster
Session 5.02: Groundwater and global change
Razowska-jaworek (orateur)
Emergency water supply for the population from groundwaters in the Upper Silesia (Poland)
Emergency situation is a potential situation, when a total lack of ability of using surface waters and groundwaters connected to the water supply systems appears, e.g. as a result of the earthquake or warfare. In such situation, groundwater intakes which are not connected to any water supply systems, will be the only safe sources of water supply of the population.**Upper Silesian population reaches 2,2 mln and needs 10 000 m3 of water per day for survival supply in a case of an emergency. It is supplied mainly from surface water intakes, mostly by one contributor, who has emergency wells, but their productivity wouldn’t be sufficient for the entire agglomeration in emergency situation..**As a result of the study conducted by PGI, potential areas with possibility to locate emergency wells were outlined in the Upper Silesia, located in the Triassic and Quaternary aquifers, due to significant water resources and location which ensure the convenient transfer of water to all cities. These areas have limited extent as aquifers in this region are strongly affected by mine drainage and industrial activities. **Although these areas were indicated as the perspective for the location of emergency wells, they could also be considered as potential sources of the public water supply, mainly due to the closure of a number of coal and lead and zinc mines in this region. **Mine waters pumped from coal mines may also be considered as an alternative source of water supply in emergency in the Upper Silesia. ****