Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. IX
Written by Matei MOLDOVEANU, Ioan BICA
The paper aims to present the impact of the waterways Dunare - Marea Neagra, respectively Poarta Alba - Midia, Navodari on both the groundwater and the groundwater catchments located in the vicinity of the waterways and currently in operation for water supply of the cities. Arranged waterways dug in the aquifer store rock, without sealing meassuries, can have both quantitative and qualitative impact on the adjacent groundwater. In order to determine the quantitative changes caused by the waterways on the aquifer layers besides the monitoring of this process, mathematical models can be used adopting different scenarios of water flow, depending on the existing hydrogeological conditions, as well as the possible changes created by the anthropic activities. Groundwater pollution is characterized by low rates of contaminants propagation. In the case of surface water, the impact of a pollutant source on the ecosystem is fast, and once the pollutant source is removed, the ecosystem returns to its original state. In the case of groundwater, due to both the low propagation speeds and the specific remediation mechanisms, the return to the initial state after the removal of the contaminants involves special, long-lasting and costly measures. This study takes into account the geological structure of this area, and the karst-fissure aquifer, as well as the existence of numerous groundwater catchments used to meet the water requirements of the localities in the area.
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