oa High resolution travel-time tomography used to delineate a shallow waste disposal site

In Switzerland, large quantities of waste are buried in glacial and glaciofluvial sediments. These same sedinients comprise two-thirds of the country's aquifers and thus contain important sources of drinking water. To assess the potential for environmental contamination, the boundaries of the buried waste sites (i.e. their lateral extents and depths) must be well known. The depths of the sites are of particular interest for judging if the groundwater table is within or below the waste.