Model-Based Analysis of the Link between Groundwater Table Rising and the Formation of Solute Plumes in a Shallow Stratified Aquifer

Groundwater table rising (GTR) represents a well-known issue that affects several urban and agricultural areas of the world. This work addresses link between GTR formation solute plumes from contaminant sources are located in vadose zone, water may help mobilize with time. A case study is analyzed stratified pyroclastic-alluvial aquifer near Naples (Italy), which notoriously affected by GTR. dismissed chemical factory generated plume, was hydraulically confined pump-and-treat (P&T) system. Since 2011, aqueous concentrations 1,1-dichloroethene (1,1-DCE) have been found to exceed regulatory maximum concentration levels monitoring wells. It has hypothesized 1,1-DCE source occur as buried waste flushed time under To elucidate this hypothesis reoptimize P&T system, flow transport numerical modeling analysis developed using site-specific data. The results indicated formulated indeed plausible. model shows peaks were reached 2011 2017, agree observed site. also able capture simultaneous decrease 2014. Scenario-based suggests lowering below elevation potentially cost-effective strategy reschedule pumping rates