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Survey of mercury wreck off Fedje being prepared
Since March 14, the 'Olympic Triton' was being prepared in Vindenes for a new and comprehensive survey of the submarine wreck 'U-864' off Fedje by the Norwegian Coastal Administration as an important step in the ongoing work to reduce the environmental risk from mercury that was still present in the wreck The upcoming survey follows the expedition conducted in 2025, and will provide an even better knowledge about both the condition of the wreck and any mercury containers in the keel. One of the goals of the expedition is to test methods and equipment that can provide safer access to the keel section of the submarine, where the remaining mercury containers may be located. In addition, the project will map the seabed and structural conditions around the wreck to obtain information that will support the decision on further measures. The Reach Subsea AS has been selected as the main contractor after a competitive tender. To ensure broad expertise, the company has several partners: - NIVA - environmental monitoring; - Scanmatic AS - instrumentation; - RenOcean AS - dredging operation- The Norwegian Coastal Administration also has its own representatives on board. They will closely monitor the operation and ensure that the work is carried out in accordance with the contract. 'U-864' still contained potentially intact mercury containers that were representing a known environmental hazard. Previous investigations have revealed elevated levels of mercury in the sediments around the wreck area, but there was still uncertainty related to the remaining amount in the wreck parts, the condition and location of the containers. The results from the investigation will therefore be a key part of the basis when the authorities decide on further handling of the wreck parts, especially whether it will remove the mercury, cover it or chose a combination of different measures.
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