Abstract

This paper describes a forensic investigation of groundwater in an urban context in Italy. The present case study was conducted to detect the hydraulic flow path between a sportfishing pond and a nearby industrial plant’s contaminated groundwater site. The investigation was performed to evaluate the potential for diffusion of contaminants through groundwater flow into a fishing pond located downstream from a chemical factory. High-precision altitude measurements of monitoring stations combined with continuous water level monitoring were crucial to understand the groundwater flow dynamics and define the hydrogeological conceptual model. The study verified that the fishing pond, dug in low-permeability volcanic rock, was not hydraulically connected to the groundwater flow. The presence of contaminants in the pond may be related to the periodic topping-up activity performed using water from an existing well. The identified groundwater flow paths were consistent with the possible contaminant migration from the chemical factory to the water well near the fishing pond.

摘要

本文描述了意大利城市环境中地下水的法医调查。本案例研究旨在检测钓鱼池和附近工厂受污染的地下水场地之间的水力流动路径。进行这项调查是为了评估污染物通过地下水流扩散到位于化工厂下游的鱼塘的可能性。监测站的高精度海拔测量与连续水位监测相结合，对于了解地下水流动动力学和定义水文地质概念模型至关重要。该研究证实，在低渗透率火山岩中挖掘的鱼塘与地下水流没有水力连接。池塘中污染物的存在可能与使用现有井中的水进行的定期补水活动有关。确定的地下水流动路径与可能的污染物从化工厂迁移到鱼塘附近的水井一致。