Draft Overview of HPC Construction - EDF Hinkley Point

3. PRELIMINARY WORKS3.1 Introduction3.1.1 A series of activities are proposed to be completed before the main Hinkley Point Cconstruction activities can commence. Some of these works can be completed priorto the determination of the DCO application and will be done at EDF Energy’s risk toallow the main construction works to start as soon after the decision as possible.3.2 Remediation and Associated Works3.2.1 Prior to commencing the site preparation works a small number of remediation andassociated works will have been undertaken in the northern part of the site. Theseworks were submitted as a stand-alone application separate from any proposals fordevelopment that might come forward in the future for Hinkley Point C. These workswere granted by Somerset County Council in January 2011, subject to conditions.3.2.2 The north-eastern part of the site includes a construction debris mound whichoriginated from the construction of the existing Hinkley Point Power Station Complex.Site investigations identified the presence of asbestos containing materials (ACMs) inthe mound and in areas in the vicinity of the mound. The proposed works includeremoving any potential hazard to human health and the environment which may becaused by the presence of asbestos containing materials on the site. The applicationprovided for the excavation and removal of the contaminated soil and the re-use ofexisting uncontaminated stockpiled materials as engineered fill within the site and asbackfilling material for the decommissioning of Hinkley Point A.3.2.3 In addition to these remediation works, the application also included proposals forassociated works, including the creation of temporary areas of hardstanding formaterial segregation and stockpiling, plus temporary portacabin offices. It alsoincluded proposals to create a temporary helipad.3.3 Preliminary Works3.3.1 To facilitate the construction of a new nuclear power station at Hinkley Point C, EDFEnergy submitted two applications to undertake some preliminary works at theHinkley Point C Development Site, comprising site preparation works and theconstruction and operation of a temporary jetty, which also provides for itsdismantling and removal once operation has ceased. These applications weresubmitted to West Somerset Council (WSC) and the Marine ManagementOrganisation (MMO) respectively.DRAFT | Overview of HPC Construction | February 2011 11