Abstract
Abstract Electrical leak location surveys have been undertaken in the US for several years. 1993 has seen the first application of this technology on a newly constructed soil-covered HDPE geomembrane at a waste disposal site in the UK. The technology exploits the electrical insulating properties of geomembranes. A voltage placed across the geomembrane is surveyed to identify anomalies where electrical current is flowing through leaks in the liner. In its first UK application both ‘pin hole’ leaks and larger cuts in the geomembrane were located and repaired prior to commissioning the waste disposal facility.
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