Volume-based inverse model (VINMOD): innovative approach to quantify groundwater pollution in heterogeneous aquifers

The results of integral pumping tests (IPTs) performed in the city of Fabriano, Italy, are presented. The IPT methodology was developed by the European Union project INCORE, as a tool for groundwater investigation and source localization in contaminated areas. This methodology consists of a multiple-well pumping test in which the wells are positioned along a control plane downstream of suspected contaminant source zones and perpendicular to the mean groundwater flow direction. During the pumping, concentration time series of target contaminants are measured. In Fabriano, two control planes were realized to identify a chlorinated aliphatic hydrocarbon plume, to estimate the mass fluxes and draw up a ranked list of the main contamination sources. A numerical flow model was implemented to support the IPT design and to interpret the results. This study revealed low-level trichloroethylene contamination (concentration below 8 μg/l), tetrachloroethylene contamination (mean concentration up to 500 μg/l) and a mass flow rate of about 300 g/day. Through the application of the IPT method, the mean contaminant concentrations, the spatial distribution of concentration values along the control planes, and the total contaminant mass flow rates were evaluated, and the investigation area was reduced for further and deeper investigation activities

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Identifying sources of chlorinated aliphatic hydrocarbons in a residential area in Italy using the integral pumping test method

Alberti

Lombi

Zanini

2011

Hydrogeol J

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Volume-based inverse model (VINMOD): innovative approach to quantify groundwater pollution in heterogeneous aquifers

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Identifying sources of chlorinated aliphatic hydrocarbons in a residential area in Italy using the integral pumping test method

Identifying sources of chlorinated aliphatic hydrocarbons in a residential area in Italy using the integral pumping test method

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