Sellafield historic reprocessing facilities, waste stores, as well as other clean-up projects on the site. Reprocessing plants include the THORP nuclear fuel reprocessing plant, the Magnox nuclear fuel reprocessing plant, and the Waste Vitrification Plant. The site contains several nuclear waste stores, with the Low Level Waste Repository 6 km away at Drigg. The UK's National Nuclear Laboratory also has its Central Laboratory on the Sellafield site. Sellafield was a small rural community situated on the west (Irish Sea) coast of North-West England in the current county of Cumbria (and formerly in the pre-1974 county of Cumberland) in the parish of
Oldbury Nuclear Power Station an urban area twice the size of Bristol. Reactor 1 went critical on 18 September 1967 and first generated electricity on 9 November 1967, Reactor 2 started generating electricity in April 1968. The construction was undertaken by a consortium known as The Nuclear Power Group ('TNPG'). The reactors were supplied by TNPG and the turbines by AEI and C. A. Parsons & Co. The main civil engineering contractor was Sir Robert McAlpine. Construction on site began in 1961. Oldbury was the first nuclear power station in the UK to use prestressed concrete pressure vessels, earlier Magnox reactors having used steel