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2026 ANS Winter Conference & Expo
November 15–18, 2026
Phoenix, AZ|Arizona Grand Resort & Spa
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Posiva begins drilling disposal holes at Finland’s Onkalo repository
Last week the Finnish nuclear waste management company Posiva began drilling holes for final disposal at the Onkalo deep geological repository, near the Olkiluoto nuclear power plant in western Finland. The company’s German-made Deposition Hole Boring Machine (DHBM) took about 10 hours to drill the first hole, with a depth of 8.4 meters and a diameter of 1.75 meters, into the 1.9-billion-year-old bedrock. This is the first deposition hole intended for an iron-copper canister containing spent nuclear fuel—though test holes have been drilled at the site since 2022.
The Onkalo repository received a favorable safety assessment from the Radiation and Nuclear Safety Authority of Finland earlier in August.
Technical Session|Panel|Sponsored by FCWMD
Tuesday, June 9, 2020|4:35–6:20PM EDT|4
Session Chair:
Sven O. Bader
Session Organizer:
Alternate Chair:
Steven P. Nesbit
Staff Producer:
John Fabian (American Nuclear Society)
With the lack of political progress on a repository for HLW, this panel will take the opportunity to focus on the waste streams the U.S. nuclear complex (industry + government) does have waste disposal solutions for and will provide the current status of these disposal facilities. Hopefully through this discussion, the path towards success for a HLW repository will become evident. In addition, an update on the current status of the HLW repository program in the U.S. will be provided.
Sean Dunagan
Nuclear Waste Partnership (President, WIPP Operator)
David Carlson
Waste Control Specialists (President & COO)
Chip Martin
former Chief Nuclear Officer of NNSS (formerly NTS)
Vern Rogers
Energy Solutions
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