f Integrating Geophysical Data into Bedrock Model in Site Characterization for Nuclear Waste Disposal

The Finnish power companies Teollisuuden Voima Oy and Imatran Voima Oy prepare for disposal of high-level nuclear fuel waste deep into the Precambrian crystalline bedrock in Finland. Posiva Oy carries out the research and development programme related to the disposal. This includes tentative design of the fuel containers, the sealing plant and the underground facilities, and geological characterization of the candidate sites. Geophysics is an important tool for the studies.