Olkiluoto Biosphere Description 2006 (pdf) (4.1 MB) - Posiva

15Kaunissaari, but active commerce with Town of Rauma. Upon closing the saw mill,most log houses were dismantled and transported to a new site in Halssi, Pori.The areas currently owned by TVO were property of the State up until the 1960s(managed by the National Board of Forestry). The area currently occupied by thenuclear power plant passed from the State to TVO in 1973 as an exchange transaction.Since then, TVO has bought areas from Fortum (year 2000), the State (2001) and fromprivate owners (several occasions since 2003).Current Industrial Infrastructure of OlkiluotoNowadays, the western part of the island is occupied by nuclear power production withauxiliary facilities. A small industrial harbour is located on the northern shore of theisland. Power lines run through the northern part of the island, in an approximately 100m wide strip, with a relatively large switchyard. A freshwater reservoir with watertreatment pools is located in the middle of the island for the needs of the power plant.The first nuclear power plant built on the island, Olkiluoto 1, was completed in 1978with a second one in 1980. Construction of the third one started in 2003. In recent years,great changes have occurred, part of which are related to power production and part tonuclear waste disposal (Table 2-3, Figure 2-1).Site investigations for the disposal of spent fuel at Olkiluoto started in 1987. Over theyears, extensive geological, geophysical, rock mechanics, hydrogeological andhydrogeochemical investigations have been carried out, with sampling from outcropsas well as from investigation trenches, deep core-drilled boreholes and several shallowpercussion drilled boreholes (Posiva 2005). These investigations are concentrated to anarea of over 6 km 2 and generally cover most of Olkiluoto Island except for the NPParea, thus adding to the fragmentation of natural environment (see Chapter 2 in Posiva2003 for a detailed list and map of investigations).Table 2-3. Recently finished or ongoing industrial activities on Olkiluoto Island.InfrastructureConstruction timeONKALO area 2003-2006-Rock piling and crushing area (OL3+ONKALO) 2004-Main road 2004-2005Wind generator 2004Gas turbine reserve power plant 2006-2007Main power lines 2005-Roads, pipelines, parking areas etc. 2004-2006New gatehouse and extension to main office 2004-2005New visitor centre 2005-2006Accommodation village 2005-Concrete station extension, laboratory extensionOngoingTraining simulator, warehouse extension, new dumping place Planned