The Grand Project ‘Environmental restoration and enhancement of the Campi Flegrei lakes’ aims to restore and recover the tourist-recreational vocation of Lakes Averno, Lucrino, Miseno and Fusaro, with the consequent revitalisation of the area’s tourist and bathing system. The Phlegraean Lakes, water basins of great naturalistic importance and high environmental and landscape value, have in fact undergone a continuous and constant process of degradation of the water quality and ecosystem over the last few decades, which has severely limited their usability. The extension of the network to the urbanised areas has resulted in the decommissioning of the remaining existing domestic sewage accumulation plants, achieving in the short term the objective of de-pollution of lake and sea water.
The interventions under consideration concerned the elimination of the sources of soil and groundwater pollution, through the completion and improvement of the current sewage system serving the Phlaegrean coastal area, over an area of approximately 2,500 hectares, and the reclamation of contaminated areas to eliminate the current state of environmental degradation of the coastal strip and coastal lakes, especially Lakes Fusaro, Lucrino, Averno and Miseno. Given the extent of the project, it was inevitable to study the management and resolution of problems dictated by morphological and infrastructural interferences. The primary need was to adapt the network subject to intervention in proportion to the hydraulic risk and landslide risk, particularly present in the areas surrounding the intervention area declared R3 and R4 with high or very high hazard. For the estimation of the rainwater flows, the basins afferent to the project collectors were perimeter and the values of the relative inflow coefficients were evaluated
