Sellafield with extension options to 17 years. On 13 January 2015, the NDA announced that NMP would lose the management contract for Sellafield Ltd. as the "complexity and technical uncertainties presented significantly greater challenges than other NDA sites", and the site was therefore "less well suited" to the NDA's existing standard management model. The new structure, which came into effect on 1 April 2016, saw Sellafield Ltd. become a subsidiary of the NDA. Activities at the Sellafield site primarily support decommissioning of historic plants, and reprocessing fuel from UK and international nuclear reactors. Decommissioning projects include the Windscale Piles, Calder Hall,
Seabrook Station Nuclear Power Plant liquid contaminated by radioactivity. The 2010 U.S. population within of Seabrook was 118,747, an increase of 10.1 percent in a decade. The 2010 U.S. population within was 4,315,571, an increase of 8.7 percent since 2000. Cities within 50 miles include Boston (40 miles to city center). The Nuclear Regulatory Commission's estimate of the risk each year of an earthquake intense enough to cause core damage to the reactor at Seabrook was 1 in 45,455, according to an NRC study published in August 2010. Seabrook Station Nuclear Power Plant The Seabrook Nuclear Power Plant, more commonly known as Seabrook Station, is