groundwater interceptor
nounPronunciation: /ˈɡraʊndˌwɔtər ˌɪntərˈsɛptər/
Also written as: GWI
Engineering structure designed to capture and redirect contaminated groundwater flow from abandoned mine sites. Prevents polluted water from reaching sensitive environmental areas or drinking water supplies.
Full Definition
A groundwater interceptor is a passive or active treatment system strategically installed to capture contaminated groundwater before it can migrate to sensitive receptors or mix with clean water sources. These systems typically consist of trenches, wells, or barrier walls that intercept the natural flow of contaminated groundwater from abandoned mine workings. The captured water is then diverted to treatment facilities or contained areas where contaminants can be removed or neutralized. Interceptor systems are particularly important in mine reclamation because they provide long-term protection against the spread of acid mine drainage and heavy metal contamination. The design and placement of these systems requires detailed understanding of local hydrogeology and contaminant transport mechanisms.
Plain English
A system of drains, wells, or walls built underground to catch polluted water flowing away from old mines before it can contaminate clean water sources.
In Editorial Context
A technical solution frequently featured in mine reclamation case studies that requires clear visual aids and step-by-step explanation of how the technology protects water resources.
Etymology & History
Developed as environmental regulations required active management of contaminated groundwater rather than simple containment or discharge
Originally simple collection trenches but evolved into sophisticated treatment systems as understanding of groundwater chemistry improved
Usage
"Installation of a groundwater interceptor successfully prevented acid mine drainage from reaching the municipal water supply."
Usage note: Refers specifically to systems that capture flowing groundwater, not surface water diversions
Context: engineering reports, environmental remediation plans, regulatory documents, technical specifications
Region: international
Also known as
Contrasted with
Don't confuse with
Sometimes confused with treatment facilities, though interceptors primarily capture water while treatment focuses on contaminant removal