WAHANIA ZWIERCIADŁA WÓD NEOGEŃSKIEGO PIĘTRA WODONOŚNEGO W REJONIE WROCŁAWIA

Agata Korwin-Piotrowska, Janusz Krawczyk, Dorota Russ

Abstract


GROUNDWATER NEOGENE MULTIAQUIFER FLUCTUATIONS IN THE AREA OF WROCŁAW CITY

Abstract. The groundwater Neogene multiaquifer is the central hydrostructural part of Wrocław basin unit, which covers crystalinic series of przedsudecki block and dyscordantly lying residuals of the Sudetian Monocline The Odra river forms its drainage base of the direction NW–SE, crossing centrally the city of Wrocław. The natural, confined-artesian regime of groundwater Neogen multiaquifer in Wrocław has changed its regime to the unconfined regime only and its groundwater level decreased due to the intensive exploitation in the second half of the previous century. Due to the economic changes of the end the previous century the exploitation of the Neogene groundwater decreased, which has the influence on the reduction the depression cone. A completely different situation is in the areas surrounding Wroc³aw where the development of new groundwater intakes and the extension of the existing ones started in the 90’s. This being connected with the obligation of sewage system and waterworks implementation. In those regions we observe the dynamic groundwater level. Within the research commenced in 2009 the trial to analyse the hydrodynamic changes in the Neogen multiaquifer during the reduction process of the depression cone was taken.


Keywords


wahania zwierciadła wód podziemnych, automatyczne urządzenia pomiarowe, lej depresji.

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