Langøyene in Nesodden kommune was Oslo kommune's landfill site from 1908 — 1948. When the waste disposal site was closed, the waste masses were covered and the area was converted to an outdoor recreation area. In 2013, it was discovered that the landfill site was extremely polluted and that measures needed to be put in place to secure the polluted masses. To increase Langøyene's appeal as a recreational area, in addition to the securing of the landfill site, there is a need to upgrade the island's facilities.
Oslo kommune is now starting works to secure the previous landfill site and facilitate for recreation and bathing for Oslo's growing population. In this context, the Contracting Authority invites interested parties to participate in a dialogue conference.
The project involves securing of the old landfill site against the spread of pollution, as well as upgrading of the beach facilities and jetties, and the establishment of a new water and sewage system.