The paper deals with changes of water quality of the aquifer in the valley of the Sava River at Zagreb, capital of Croatia, with respect to the depth of aquifer, laterally and temporally, during several years. The impact of water quality on the appearance of incrustation and corrosion in wells has also been analyzed. There are also presented procedures for preventing incrustation and corrosion. The basis for this paper are the results of analyses of the water samples taken from different wells, new piezometers and those previously carried out at water-pumping sites of different embedding depths.
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The article deals with the state of utilization and protection of the water resources in the Mokašnica river basin (MRB) within the larger Mostarsko Blato catchment area (MBB). The authors present data on the Mostarsko Blato basin, provided through the analyses of the results of earlier research projects dealing with surface and groundwater flows, particularly related to the research carried out in the MRB. The previous water engineering works in the MRB have been analyzed for effects on the natural environment and the influence of such works on the regime of surface flow and groundwater aquifer geometry. In order to protect the area of the MRB from further devastation, the authors suggest some protective measures and due improvements. A special environmental protection study is necessary for better management of the MRB waters and the natural environment, including the analysis of the possibility of losing said water resources due to the implemented engineering interventions.
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