Multi-scenario numerical modeling applied to groundwater contamination: the Popoli Gorges complex aquifer case study (Central Italy)

Abstract

In this research, a multi-scenario numerical modeling was implemented to assess the effects of changes to abstraction patterns in the Sant’Angelo well-field (central Italy) and their implications on the aquifer hydrodynamic and the advective transport of contaminants. Once implemented and calibrated the steady-state numerical model by means of MODFLOW-2005, the well-field turning off scenario was modelled. In addition, the numerical results were analyzed by means of the post-processors ZONEBUDGET and MODPATH, to assess respectively the contribution of each hydrogeological feature to the total budget and the advective transport of contaminant particles. Comparing the two steady-state numerical models and the relative particle tracking analyses, the well-field turning off, although no longer acting as a hydraulic barrier, increased the residence time of contaminant particles and limited their mobility in the aquifer. Furthermore, the general decrease in groundwater abstractions also caused a higher increase in river flow, favoring contaminants’ dilution in surface water.

Dimensions

Altmetric

PlumX Metrics

Downloads

Download data is not yet available.
Published
2018-12-20
Keywords:
groundwater, numerical modeling, complex aquifer, advective transport, Popoli Gorges
Statistics
  • Abstract views: 625

  • PDF: 378
How to Cite
Di Curzio, D., Rusi, S., & Semeraro, R. (2018). Multi-scenario numerical modeling applied to groundwater contamination: the Popoli Gorges complex aquifer case study (Central Italy). Acque Sotterranee - Italian Journal of Groundwater, 7(4). https://doi.org/10.7343/as-2018-361