The hydrochemical database TANGCHIM, a tool to manage groundwater quality data: the case study of a leachate plume from a dumping area

Gennaro A. Stefania (1), Letizia Fumagalli (1), Alberto Bellani (2) & Tullia Bonomi (1)
(1) Department of Earth and Environmental Sciences, University of Milano-Bicocca, Milan, Italy. (2) Geodesign, Rovello Porro, Como, Italy. Corresponding author e-mail: g.stefania1@campus.unimib.it


DOI: https://doi.org/10.3301/ROL.2019.21         Pages: 113-120

Abstract

Hydrochemical data from groundwater monitoring produce large dataset that require to be properly handled in order to provide well-structured data. This work presents a preliminary conceptual model of a groundwater pollution from a dumping area using the hydrochemical database TANGCHIM as a supporting tool. TANGCHIM is an on-line database able to store, compute, display and share hydrochemical data from groundwater. TANGCHIM is linked to the hydrogeological wells database TANGRAM, forming an integrated platform able to manage all data referred to wells water. Results of both statistical and spatial analysis of hydrochemical data referred to a dumping area showed that groundwater is affected by a leachate plume contamination that likely comes from a closedold landfill built before environmental regulation. This landfill is located upstream to a currently used-new landfill preventing a proper monitoring of the groundwater contamination in the area.

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