Collieries have been associated with a wide range of industrial enterprises over many years. In particular gas, coke and tar works, now abandoned, were frequently built adjacent to the mines which provided their feedstock. The contamination associated with such industries now presents problems to redevelopers.
Old mines, particularly those with shallow workings, present an additional problem in that ground permeability may have been drastically altered by the mining operation itself. The old mine workings or induced fractures and bed separation above them can provide pathways for groundwater, complicating predictions of contaminant migration.
This paper covers the contribution that geophysical methods can make to the exploration of such sites prior to remediation and development.