The Sustainable Groundwater Level in the Milan Area

In order to improve the control of the hydrogeological balance, monitoring of groundwater piezometric levels, has great importance. In effect, these changes, in many Lombardy cities, can lead to a resource shrinkage in the case of groundwater overexploitation or potential damage to buildings and underground infrastructures in the case of rises in groundwater levels. The research shows that a hydrogeological equilibrium, achieved through a controlled deficit,guarantees both the water reserves and the socioeconomic needs of urban zones where the underground is used. Therefore, hydrogeological equilibrium is achiewed where the piezometric level is both with reserves conservation and for urban and industrial needs supplying. This paper highlights the usefulness of the “ sustainable piezometric level” concept, among the criteria of groundwater management in industrial and urban areas. This approach is essential for underground structures safety in the areas of potential groundwater rising and for groundwater resources protection where there is an overexploitation risk. The analysis of the causes of this phenomenon and overall the implementation of a mathematical model allowed the necessary actions to be found and quantified.