Wylfa Newydd Project Pre-Application Consultation Stage Three

Transcription

1 ENERGY WORKING FOR BRITAIN Wylfa Newydd Project Pre-Application Consultation Stage Three STAGE 3 Main Consultation Document

2 Cyhoeddir y ddogfen dechnegol hon yn Saesneg yn unig yn unol â Pholisi Iaith Gymraeg Horizon. This technical document is published in English only in accordance with Horizon s Welsh Language Policy.

3 Contents Key Project updates and changes since our Stage Two Pre-Application Consultation Introduction Overview The Wylfa Newydd Project... 5 The Nationally Significant Infrastructure Project... 5 Associated Development How has the project changed since the Stage Two Pre-Application Consultation? The benefits of controlled flexibility Power Station Site Off-Site Power Station Facilities, Site Campus, Logistics Centre and Park and Ride Construction equipment Preliminary Environmental Information Planning legislation and policy Wales Act Emerging Joint Local Development Plan Anglesey and Gwynedd ( ) Document structure Scope to influence the changes The Power Station (see chapter 2) Off-site Power Station Facilities (see chapter 3) Accommodating the construction workers (see chapter 5) Transporting the construction workers and materials (see chapter 6) Mitigating impacts and enhancing benefits (see chapters 7 and 8) The Power Station Introduction Stage Two Pre-Application Consultation feedback Building and operating the Power Station Stage One: Site Preparation and Clearance Management of radioactive waste and spent fuel Design and layout of the Power Station Appearance of the permanent Power Station buildings Marine Off-Loading Facility and breakwaters Wales Coast Path Preliminary Environmental Information Proposed mitigation Landscape and Environmental Masterplan Landscape and Environmental Masterplan at key stages Page i

4 2.10 Scope to influence the changes Off-site Power Station facilities Introduction Stage Two Pre-Application Consultation feedback Site location Emerging scheme design Indicative appearance Other key information Preliminary Environmental Information Proposed mitigation Scope to influence the changes Workforce, Employment and Skills Training Stage Two Pre-Application Consultation feedback Construction workforce profile Training and skills investment Construction training and skills investment Operational training and skills investment Education Engagement Strategy Primary education engagement Secondary education engagement Partnership working Maximising supply chain opportunities Preliminary Environmental Information Accommodating the construction workers Introduction Background to the approach for accommodating workers Construction worker numbers Existing capacity Stage Two Pre-Application Consultation feedback Construction Worker Accommodation Strategy Site Campus Site location Indicative phasing Emerging scheme design Indicative appearance Preliminary Environmental Information Proposed mitigation Worker Accommodation Management Service Site Campus Management Plan Drainage strategy Scope to influence the changes Transporting the construction workers and materials Page ii

5 6.1 Introduction Stage Two Pre-Application Consultation feedback Background to the Integrated Traffic and Transport Strategy Transporting the workers Transporting materials Preliminary Environmental Information traffic and transport Project-wide Dalar Hir Park and Ride facility Stage Two Pre-Application Consultation feedback Site location Preliminary Environmental Information Dalar Hir Park and Ride facility Parc Cybi Logistics Centre Stage Two Pre-Application Consultation feedback Site location Logistics Centre description Preliminary Environmental Information Parc Cybi Logistics Centre A5025 Highways Improvements Site locations On-line Highways Improvements Off-line Highways Improvements Other potential highways improvements Preliminary Environmental Information Off-line Highways Improvements Proposed mitigation Scope to influence these changes Minimising effects on communities and mitigating the impacts of the Project Introduction Mitigating the effects of the Project What is mitigation? Embedded mitigation Good practice mitigation Additional mitigation Securing mitigation The mitigation route map Summary of key mitigation Minimising effects on communities Voluntary mitigation Community benefits Introduction Horizon's Statutory Benefits package Education Jobs & Supply Chain Transport Health and Well-being Page iii

6 Accommodation Strategy Welsh language and culture Tourism Voluntary community benefits Scope to influence the proposals for community benefits? Further assessments Introduction Welsh Language Impact Assessment Addressing effects on the Welsh language and culture Health Impact Assessment Progress since Stage Two Pre-Application Consultation Habitat Regulations Assessment Progress since Stage Two Pre-Application Consultation Main areas of focus Breeding terns Other birds and marine mammals Construction drainage runoff Landscaping Scope to influence these changes Timetable and next steps Introduction Details of consultation venues, events and dates How we will take responses into account Horizon s commitment to ongoing engagement Appendix A Appendix B Appendix C Appendix D Appendix E List of Appendices Summary of consultation feedback Sources of environmental information Cumulative and transboundary effects A5025 Off-line Highways Improvements drawings List of acronyms Page iv List of Tables Table 2-1 Power Station indicative programme Table 2-2 Stage One: Main Changes Table 2-3 Stage Two: Main Changes Table 2-4 Stage Three: Main Changes Table 2-5 Stage Four: Main Changes Table 2-6 Power Station: Main Changes Table 2-7 Power Station: Changes to indicative building/structure dimensions.. 28

7 Table 2-8 MOLF and Breakwaters: Main Changes Table 2-9 Wales Coast Path: Main Changes Table 2-10 Preliminary Environmental Information: Power Station Construction. 35 Table 2-11 Preliminary Environmental Information: Power Station Operation Table 2-12 Landscape and Environmental Masterplan: Main Changes Table 3-1 Off-site Power Station Facilities: Main Changes Table 3-2 Off-site Power Station Facilities: indicative scale Table 3-3 Preliminary Environmental Information: Off-site Power Station Facilities Construction Table 3-4 Preliminary Environmental Information: Off-site Power Station Facilities Operation Table 4-1 Project peak construction period workforce Table 4-2 Peak construction workforce: trade breakdown Table 4-3 Operational workforce requirements Table 4-4 Workforce profile: Main Changes Table 4-5 Preliminary Environmental Information: Workforce during Construction89 Table 4-6 Preliminary Environmental Information: Workforce during Operation. 90 Table 5-1 Forecast demand for accommodation at peak construction Table 5-2 Predicted demand and supply of existing capacity Table 5-3 Construction Worker Accommodation Strategy: Main Changes Table 5-4 Site Campus: Main Changes Table 5-5 Site Campus: indicative scale Table 5-6 Preliminary Environmental Information: Site Campus Construction. 104 Table 5-7 Preliminary Environmental Information: Site Campus Operation Table 6-1 Proposed Transport Measures: Main Changes Table 6-2 Transportation of construction materials Table 6-3 Construction materials: Main Changes Table 6-4 Preliminary Environmental Information: Traffic and transport Project-... wide Table 6-5 Park and Ride facility: Main Changes Table 6-6 Preliminary Environmental Information: Park and Ride facility Construction Table 6-7 Preliminary Environmental Information: Park and Ride facility Operation Table 6-8 Logistics centre: Main Changes Table 6-9 Preliminary Environmental Information: Parc Cybi Logistics Centre Construction Table 6-10 Preliminary Environmental Information: Parc Cybi Logistics Centre Operation Table 6-11 Off-line Highways Improvements: Main Changes Table 6-12 Preliminary Environmental Information: Off-line Highways Improvements Construction Table 6-13 Preliminary Environmental Information: Off-line Highways Improvements Operation Page v

8 Table 7-1 Embedded mitigation Table 7-2 Good practice mitigation Table 7-3 Additional mitigation Table 9-1 Welsh Language Impact Assessment: Main Changes Table 9-2 Health Impact Assessment: Main Changes Table 9-3 Habitat Regulations Assessment: Main Changes Table 10-1 Consultation events List of Figures Figure 1-1 Power Station Site and Wylfa Newydd Development Area... 7 Figure 1-2 Indicative distribution of Wylfa Newydd Project components... 8 Figure 2-1 Indicative Power Station programme Figure 2-2 SP&C: indicative location Figure 2-3 Open top construction methodology Figure 2-4 Power Station Site indicative layout Figure 2-5 Indicative Power Station colour palette Figure 2-6 Concept sketch of an entrance building Figure 2-7 Concept sketch of view from diverted Wales Coast Path Figure 2-8 Wales Coast Path diversion Figure 2-9 LEMP Stage One Figure 2-10 LEMP Stage Two Figure 2-11 LEMP Stage Three Figure 2-12 LEMP Stage Four Figure 2-13 LEMP Stage Five Figure 3-1 MEEG, AECC and ESL: indicative location Figure 3-2 Off-site Power Station Facilities indicative masterplan Figure 3-3 Off-site Power Station Facilities: indicative view from A Figure 3-4 Off-site Power Station Facilities: aerial sketch Figure 4-1 Workforce profile Figure 5-1 Likely distribution of construction workforce across accommodation types Figure 5-2 Site Campus: indicative location Figure 5-3 Site Campus: indicative masterplan Figure 5-4 Site Campus: indicative view from near Llanbadraig Point Figure 5-5 Concept image of Site Campus appearance Figure 6-1 Dalar Hir Park and Ride facility: indicative location Figure 6-2 Park and Ride facility: indicative masterplan Figure 6-3 Dalar Hir Park and Ride facility: aerial sketch Figure 6-4 Dalar Hir Park and Ride facility: indicative view Figure 6-5 Logistics Centre: indicative location Figure 6-6 Logistics centre: indicative masterplan Page vi

9 Parc Cybi Logistics Centre: aerial sketch Figure 6-7 A5025 Highways Improvements Page vii

10 [This page is intentionally blank] Page viii

11 Key Project updates and changes since our Stage Two Pre- Application Consultation Horizon last consulted on the Wylfa Newydd Project between August and October 2016 and since then it has gone through an important period of review. This review has reflected two key stages in the on-going development of the Project. Firstly, Horizon s appointment of a joint venture partner and various consultants to take forward its proposals for project design and deliverability and, secondly, Horizon s consideration of the feedback from Stage Two Pre-Application Consultation and other engagement with local stakeholders. Consenting We are now proposing to apply for the majority of Project components through our Development Consent Order (DCO) application, with separate planning applications to Isle of Anglesey County Council (IACC) for Site Preparation and Clearance works and A5025 On-line Highways Improvements. This is as a result of changes in legislation which now allow Horizon to apply for Associated Development within its DCO. Power Station Design We are proposing a more compact and efficient layout for the Power Station Site. We have refined our proposals for the Landscape and Environmental Masterplan (LEMP) to respond to changes made on the Power Station Site and consultation feedback received. We are altering the design of the Marine Off-Loading Facility (MOLF), to increase cargo handling capacity and reduce the amount of seabed that is required to be excavated. Off-site Power Station Facilities We are changing the proposed site for the Alternative Emergency Control Centre (AECC) and Environmental Services Laboratory (ESL) from the greenfield site at Cefn Coch to the brownfield site at Llanfaethlu, where the Mobile Emergency Equipment Garage (MEEG) is also proposed to be located. A potential site for the AECC and ESL at Llanrhyddlad has now been discounted. Welsh Language and Culture We will be appointing a Welsh Language and Culture Co-ordinator who will oversee the implementation of detailed measures to be developed with the Welsh Language and Culture Steering Group. Page 1

12 Community We will provide a bespoke, on-site medical centre which will provide occupational healthcare, GP service and primary care for minor inquiries for all of our workforce, whether they live in the Site Campus, reside locally or travel to Wylfa Newydd from the wider area. We will provide a small scale fund to mitigate specific community impacts which will be designed to address areas of concern to the community, particularly those which arise from cumulative effects. We will provide funding to allow IACC to deliver limited A5025 On-line Highways Improvements on the A5025 between Wylfa and Amlwch. Economy and Supply Chain We anticipate that the local investment value over the construction period will increase significantly to up to a total of 400 million as a result of further work carried out which has improved our understanding of the economic benefits of the Project.. We estimate that an increase to over 20 million per annum can be expected to the Anglesey economy over the operational life of the Power Station. We will shortly be commencing a trial of the Wylfa Newydd Employment and Skills Service with the aim of centrally locating all Project job vacancies and identifying skills gaps and provision, and are committed to using this to maximise the ability of local people to access the opportunities created by the Project. We will establish a Supply Chain Contracts Service which will promote opportunities for businesses to engage with the Wylfa Newydd supply chain. Jobs and Skills We have provided a 1 million contribution to Grŵp Llandrillo Menai and remain committed to working with them to develop a training programme for our engineering apprentices. We anticipate that the number of construction workers employed on our Project at peak is likely to reduce from around 10,700 to around 8,500. We still expect there to be an operational workforce of around 850 workers, with up to 1,000 additional workers to carry out routine maintenance during outage periods we anticipate that around 85% of these will be from the local area. We are in the process of recruiting 12 apprentices to our Technical Apprenticeship Scheme for the 2017/18 academic year. We will support a capital investment programme for all five secondary schools on Anglesey to improve the science and technology facilities, to help promote the take up of STEM subjects. Page 2

13 Tourism We will support a Tourism Fund to assist in tourism initiatives to respond to changes arising from the construction and operation of Wylfa Newydd. We are proposing temporary construction visitor facilities, for example, a viewing area for visitors for the construction stage of the Project. We will apply for a Visitor and Media Reception Centre separately once the Project is operational. Accommodating the construction workers We are proposing to accommodate those workers who are not living at home, or in existing accommodation such as tourist accommodation or the private rental sector, within a single, temporary Site Campus, close to the Power Station Site. Consequently, we are now no longer proposing temporary workers accommodation at Rhosgoch, Amlwch Sites A and B, Kingsland and Cae Glas, or Madyn Farm. We are however still committed to helping to deliver permanent housing to mitigate potential effects on the local housing market and will establish a Housing Fund, which could be used to deliver permanent housing or to help IACC deliver their empty homes programme. We will establish a Worker Accommodation Management Service (WAMS) to provide workers with a means of finding accommodation which meets their needs, to manage impacts on existing accommodation. We will establish an Oversight Board to set targets for the WAMS. Transporting our construction workers and materials We will be reducing the overall number of car parking spaces from approximately 5,800 spaces to 3,800 spaces and increases the emphasis on car sharing. We are reducing the number of car parking spaces at the park and ride facility at Dalar Hir from 2,700 spaces to 1,900 spaces. We are increasing the number of car parking spaces at the Wylfa Newydd Development Area from 1,000 to 1,900 parking spaces. We no longer require parking associated with the previously proposed temporary workers accommodation sites. We will be asking more of our suppliers to consolidate at source, which enables us to decrease proposed HGV deliveries from Parc Cybi to the site from a maximum of 80 to 40 deliveries per hour. We are increasing the number of HGV spaces at the Logistics Centre at Parc Cybi to enable better control of movements on the A5025 and to hold more vehicles in the event of an incident on the road network. Page 3

14 1 Introduction 1.1 Overview This Main Consultation Document contains proposals for a new nuclear power station and associated development on Anglesey. Collectively, the proposals are referred to as the Wylfa Newydd Project (or the Project) and further details are set out below. This document has been prepared by Horizon Nuclear Power Wylfa Limited (Horizon), one of the Horizon Group of businesses that also includes Horizon Nuclear Power Ltd, a UK energy company seeking to develop a new generation of nuclear power stations Horizon last consulted on the Project between August and October 2016 (Stage Two Pre-Application Consultation) and since then it has gone through an important period of review. This review has reflected two key stages in the on-going development of the Project. Firstly, Horizon s appointment of a joint venture partner and various consultants to take forward its proposals for project design and deliverability and, secondly, Horizon s consideration of the feedback from the Stage Two Pre-Application Consultation and other engagement with local stakeholders In May 2016 Horizon appointed Menter Newydd as its Engineering Procurement and Construction Joint Venture partner. Menter Newydd is a consortium that includes some of the most experienced engineering and construction companies in the world, including Hitachi Nuclear Energy Europe, Bechtel Management Company and JGC Corporation (UK). Horizon has also held extensive discussions with contractors and appointed specialist construction consultants using an approach known as Early Contractor Involvement Through this approach, which represents best-practice in the development of major infrastructure projects, Horizon has brought world-class expertise to the Project and developed more efficient and cost effective proposals that will ultimately deliver better value to customers Horizon has also carefully reviewed feedback from the Stage Two Pre- Application Consultation and proposes changes that reduce adverse impacts for many local communities, particularly in terms of their health and wellbeing, and to help to safeguard and in the longer term enhance Welsh language and culture. The Project will also bring benefits to many communities and the changes seek to maximise and enhance these where possible. Appendix A summarises the main themes that emerged from Stage Two Pre-Application Consultation feedback and how these have influenced the Project s development. Within chapters 2 to 6 below, Horizon has also included summaries of the Stage Two Pre-Application Consultation feedback that has assisted Horizon in developing its proposals It is an unavoidable consequence of almost any major infrastructure project that there will be some environmental effects and, indeed, that some communities will be more affected than others. Horizon has worked hard to Page 4

15 understand potential effects of the Project and the concerns of local communities, and has been working closely with a range of stakeholders to progress a package of mitigation measures and agree voluntary community benefits. Details of Horizon s current position can be found in chapters 7 and This Main Consultation Document summarises the entire Project but does not repeat all of the information that was provided for the Stage Two Pre- Application Consultation, as much of the Project has not materially changed. Instead, this consultation explains the changes to the Project since the Stage Two Pre-Application Consultation and identifies preliminary environmental information on the significant individual or cumulative environmental effects of those changes. This approach is consistent with national guidance and allows readers to focus on key Project changes and updates. Where details have not materially changed, references are provided to signpost readers to the relevant information provided at the Stage Two Pre-Application Consultation. 1.2 The Wylfa Newydd Project The Project comprises the following elements: The Nationally Significant Infrastructure Project Power Station: the proposed new Nuclear Power Station, including two UK Advanced Boiling Water Reactors (UK ABWRs) to be supplied by Hitachi-GE Nuclear Energy Ltd., supporting facilities, buildings, plant and structures, and radioactive waste and spent fuel storage buildings; Other on-site development: including landscape works and planting, drainage, surface water management systems, public access works including temporary and permanent closures and diversions of public rights of way, new power station access road and internal site roads, car parking, construction compounds and temporary parking areas, laydown areas, working areas and temporary works and structures, temporary construction viewing area, diversion of utilities, perimeter and construction fencing; Marine works: comprising a Cooling Water System intake and outfall, Marine Off-Loading Facility (MOLF) and breakwater structures; and Off-site Power Station Facilities: comprising the Alternative Emergency Control Centre (AECC), Environmental Survey Laboratory (ESL) and a Mobile Emergency Equipment Garage (MEEG). Associated Development On-site campus providing temporary workers accommodation (Site Campus); A temporary Park and Ride facility at Dalar Hir for construction workers; A temporary Logistics Centre at Parc Cybi; A5025 Off-line Highway Improvements; and An electrical connection to the National Grid substation. Page 5

16 1.2.2 Horizon is also proposing to undertake enabling works which include: Site Preparation and Clearance (SP&C) works to prepare the site for the main construction stage (see chapter 2 for more information); and, On-line Highways Improvements work to improve the existing A5025 (including widening, reconstructing and resurfacing the road from Valley to the Power Station Site) (see chapter 6 for more information) The following terms are used in this document when describing the geographical areas related to the Project: Power Station Site: the indicative area of land and sea within which the majority of the permanent Power Station buildings, plant and structures will be located. This includes the two nuclear reactors, steam turbines, the cooling water system intake, outfall structures, breakwaters and the MOLF; Wylfa Newydd Development Area: the indicative areas of land and sea including the Power Station Site, and the surrounding areas that will be used for construction and operation of the Power Station. It will also include the Site Campus. This area is representative of the maximum area that will be physically affected by construction activities related to the Power Station and used to form the setting and landscaping features of the operational Power Station; and Off-site: the areas of land needed for the Project that fall outside of the Wylfa Newydd Development Area (WNDA). Components that will be offsite include most of the Associated Development and the Off-site Power Station Facilities The Power Station Site and WNDA locations are shown on figure 1-1 below. The off-site locations are shown on figure 1-2. Page 6

17 Figure 1-1 Power Station Site and Wylfa Newydd Development Area Figure 1-2 below shows the general physical distribution of the Project components across Anglesey. Page 7

18 Figure 1-2 Indicative distribution of Wylfa Newydd Project components 1.3 How has the project changed since the Stage Two Pre-Application Consultation? The Project is a nationally significant infrastructure project, representing an investment on Anglesey of over 10 billion. As set out above, Horizon has further refined its proposals in response to Early Contractor Involvement, consultation feedback and other engagement. It is because this is such an important project, both nationally and locally, that Horizon is keen to keep local communities and other key stakeholders informed of changes to its proposals and to get your views on how they can be improved In that context, the main changes since the Stage Two Pre-Application Consultation are: altering the layout on the Power Station Site to make construction and operation of the Project more compact and efficient, whilst retaining appropriate levels of flexibility to allow for detailed design development; refining the design of the Landscape and Environmental Masterplan (LEMP) to respond to changes made on the Power Station Site and consultation feedback received; reducing the projected peak number of construction workers from around 10,700 to around 8,500 as a result of improved construction techniques. This meets concerns raised by consultees about the peak number of Page 8

19 construction workers however, as explained later in this document, Horizon is carrying out its assessments at 9,000 workers, to ensure it mitigates against any unforeseen increases in worker numbers. The exception to this is in assessments where the lower number of workers represents the worst case scenario, in which case the lower figure is being assessed. This is explained further in chapter 4 of this document; rationalising the temporary workers accommodation from a number of off-site locations (at Kingsland (Holyhead), Cae Glas (Holyhead), Rhosgoch, Madyn Farm (Amlwch) and Amlwch Sites A and B) to a single campus within the WNDA, known as the temporary Site Campus. This results in an increase of temporary workers accommodation on-site from 500 bed spaces to up to 4,000 bed spaces alongside associated amenity facilities. This generates multiple benefits as set out later in chapters 5 and 6 and responds to concerns raised by consultees at the Stage Two Pre-Application Consultation; as a result of the above, a reduction of approximately 2,000 car parking spaces (from approximately 5,800 to 3,800) for the Project as a whole; an increase of 900 temporary car parking spaces (from 1,000 to 1,900 parking spaces) at the WNDA and a consequential reduction of parking spaces at the off-site temporary Park and Ride facility at Dalar Hir. On site car parking spaces will be subject to mitigation measures to require car sharing (i.e. with spaces only available to cars containing at least three construction trade workers). This change allows for parking at Dalar Hir to reduce from around 2,700 spaces to 1,900 spaces, which enables Horizon to provide additional amenity grassland at that site. In addition, the temporary bus facility building and bus waiting pick up and drop off zone are now smaller, making the site easier to return to agricultural use once it is no longer required; fewer traffic movements on Anglesey as a whole and fewer traffic movements associated with worker shift rotations. Daily worker traffic would increase on the A5025, however, the traffic movements would not exceed the design capacity of the road, particularly given the proposed Highways Improvements; locating the three Off-site Power Station Facilities (AECC, ESL and MEEG) onto a single site at Llanfaethlu, which is the site upon which only the MEEG was previously proposed to be located. While previously it was not clear that this site was available for all of these facilities, Horizon has reviewed its requirements and considers that these can be safely met by providing a facility just outside the initial assumed guideline distance for the Countermeasure Zone of no more than 5km from the Power Station Site. The distance and size for the Off-site Emergency Planning Area will not be set by Office for Nuclear Regulation (ONR) until the site approaches the arrival of nuclear fuel, so Horizon has interpreted the current available technical data for the UK ABWR and has set an assumed 5km zone for planning purposes. The proposed Llanfaethlu site is approximately 7.5km from the Power Station Site and Horizon is satisfied that this would meet the requirements set and be within required response time distances. This also has the benefit of further reducing the Page 9

20 number of development sites, and locating all three Off-site Power Station Facilities on an existing brownfield site. Further details of the Countermeasure Zone and Off-site Emergency Planning Area are contained in the Stage Two Pre-Application Consultation Off-site Power Station Facilities Site Selection Report contained on the Horizon consultation website; altering the design of the MOLF, by providing two platforms (comprising three quays) with a number of mooring dolphins rather than one long quay wall and moving the structures slightly further from the existing shoreline. These changes increase the cargo handling capacity of the MOLF and reduce the amount of seabed that is required to be excavated; replacing the warehouse building on the temporary Logistics Centre at Parc Cybi with a covered inspection bay, as it is no longer considered appropriate to consolidate smaller freight loads into larger vehicles at the Logistics Centre. Instead, Horizon will require suppliers to ensure delivery loads are as full as possible when they start their journey, to reduce traffic on the wider road network. Additional Heavy Goods Vehicles (HGV) parking spaces are also provided (100 spaces in total) to allow Horizon to hold additional vehicles on-site in the event of an incident on the road network; seeking consent for all Nationally Significant Infrastructure Project (NSIP) and Associated Development elements in the DCO, as set out in more detail later in this chapter; since the Stage Two Pre-Application Consultation, Horizon has been working with stakeholders to develop a package of mitigation measures to address the likely significant effects of the Project on communities. Further information on Horizon s proposed approach is set out in chapters 7 and 8 and this will continue to be developed alongside ongoing assessments and consultation and engagement feedback; Horizon is appointing a Welsh Language and Culture Co-ordinator, who will oversee the implementation of detailed measures to protect and enhance the Welsh Language and Culture. At this stage, Horizon is not therefore consulting on detailed measures, as it will be part of the role of the Co-ordinator to advise and implement these. Further detail will be provided in the Welsh Language Impact Assessment (WLIA) which will be submitted with the DCO application; and proposing a temporary construction viewing area for visitors for the construction stage of the Project as part of the DCO. A Visitor and Media Reception Centre would be applied for separately through a planning application under the Town and Country Planning Act 1990 (TCPA) once the Project is operational Further details on the Stage Two Pre-Application Consultation feedback that has influenced these Project changes are set out in appendix A and summarised in chapters 2 to 6. Page 10

21 1.4 The benefits of controlled flexibility Major infrastructure projects are usually large, and often very complex, forms of development. Nuclear power stations have the additional need to comply with important safety and other regulatory requirements. For a number of reasons, therefore, Horizon will have a continuing need to refine its proposals and, indeed, this is likely to continue after any development consent is granted for the Project We understand, however, that communities and other stakeholders will want to have some confidence that they understand Horizon s proposals and what may ultimately be granted development consent, and this is also important in undertaking Environmental Impact Assessment (EIA) of the Project. For NSIPs, this balance between flexibility and detail is usually resolved by the identification of parameters which control the development and set limits within which it may be undertaken. That is the approach Horizon intends to use for the Wylfa Newydd Project and it anticipates that appropriate parameters and other controls will be imposed upon it through any DCO that may be granted In this Main Consultation Document Horizon has given its current best understanding of the likely dimensions and locations of the various component parts of the development, but it should be understood that Horizon will want to secure some flexibility around these figures which should, therefore, be regarded as indicative at this stage The Preliminary Environmental Information (PEI) in this document reflects the fact that the dimensions and locations of the component parts of the development are indicative and, where appropriate, has sought to reflect what Horizon currently believe will be a most likely worst-case scenario based on the information available. It is important to note that Horizon s DCO application and accompanying Environmental Statement will identify detailed parameters that will control the development of the Project and that any flexibility within those parameters will be environmentally assessed. In the remaining chapters of this Main Consultation Document Horizon set out PEI that reflects the above approach In this context, Horizon considers it is helpful to set out current thinking on the approach to the identification of appropriate parameters for the development of the Project. These are currently as follows; Power Station Site For the purposes of the DCO, Horizon will identify two categories of buildings and structures: those where the location and dimensions are particularly sensitive in terms of environmental effects (Group 1); and those that are less sensitive (Group 2): Group 1 buildings and structures are generally the larger buildings which could have a significant effect on the landscape, or are sources of noise, such as the reactor buildings and turbine building. These would be generally fixed in terms of their location, but capable of minor increases Page 11

22 or decreases in length, width and height. For instance this could be up to 5m in length and width and 2m in height; and, Group 2 buildings and structures are generally the smaller buildings such as the control building and the administration buildings. These would be able to be located anywhere within a defined zone and would be capable of larger increases such as, for instance, up to an extra 10m in length and width and up to 5m taller. They may also have no minimum sizes and so could be significantly smaller Flexibility will also be sought for the MOLF and breakwaters, with horizontal and vertical limits of deviation from a defined location Due to the effect that changes in the locations of the stacks, which contain the chimneys, could have on air quality, the locations and heights of these are proposed to be generally fixed within restricted parameters For roads within the Power Station Site, it is proposed that a centre line will be defined with horizontal limits of deviation. For the landscape and drainage works, a masterplan approach is proposed, with details to be submitted in accordance with design principles set out within the Design and Access Statement, which will be submitted with the DCO. These principles may include maximum and/or minimum parameters where this is required to ensure that the effects stay within those assessed in the EIA, such as where they include bunds required for noise or visual screening. Off-Site Power Station Facilities, Site Campus, Logistics Centre and Park and Ride It is proposed that only limited variations would be applied for in terms of the maximum and minimum heights, depth and width of the buildings, to enable modest changes during the course of detailed design. Construction equipment Appropriate allowances and flexibility will also be required and sought in respect of construction equipment (such as some of the cranes), which will sit outside of the parameters of the buildings and structures themselves. 1.5 Preliminary Environmental Information For each element of the Wylfa Newydd Project (comprising the Power Station, Associated Development, and Off-site Power Station Facilities), we have assessed the change in environmental effect resulting from the key Project changes described in this document As such the PEI presented focuses on the change to the Project since Stage Two Pre-Application Consultation and the resulting change in environmental effect. The EIA process is an iterative one, and at this stage the assessments presented rely on the application of professional judgement of environmental experts. Detailed modelling and ongoing environmental assessment is progressing for the Project, however, and final assessments Page 12

23 will be reported in full in the Environmental Statement that will accompany the DCO application. 1.6 Planning legislation and policy Wales Act Prior to enactment of the Wales Act 2017, the Planning Act 2008 did not permit most forms of Associated Development (such as Park and Ride, and highway improvements) to be included in a DCO for a NSIP in Wales. Thus before the passing of the Wales Act 2017, Horizon would have had to promote those parts of the Project under the TCPA Recognising the potential for this change in the law, however, Horizon consulted on Associated Development in its Stage Two Pre-Application Consultation in the same way as those elements of the Project that were allowed to be included in the DCO at that time Following the passing of the Wales Act 2017 on 31 January 2017, Associated Development can now be consented by DCOs in Wales and, as such, Associated Development is now formally sought as part of Horizon s DCO application. Changes to the consenting route As explained above, changes in legislation now allow Horizon to apply for Associated Development within its DCO application and, as a consequence, Horizon intends to include the following principal Project components within the DCO: Site Preparation and Clearance (SP&C) works (sought both in the DCO and separately as a TCPA planning application), but comprising a reduced scope from the SP&C works previously consulted on by Horizon; Wylfa Newydd Power Station and associated works including an electrical connection to the National Grid substation; MOLF and breakwaters; Off-site Power Station facilities, comprising the AECC, ESL, and MEEG; Temporary Site Campus; Temporary Park and Ride facility at Dalar Hir; Temporary Logistics Centre at Parc Cybi; and, A5025 Off-Line Highway Improvements comprising: - A5 east of Valley Junction to north of Valley Junction (A5/A5025); - north of Llanynghenedl to north of Llanfachraeth; - south of Llanfaethlu to north of Llanfaethlu; - north of Llanrhyddlad to north of Cefn Coch; and - north of Cefn Coch to Power Station Access Road Junction. Page 13

24 Emerging Joint Local Development Plan Anglesey and Gwynedd ( ) Gwynedd Council and Isle of Anglesey County Council (IACC) are preparing a Joint Local Development Plan for the Anglesey and Gwynedd Local Planning Authority area. The Joint Local Development Plan will, upon adoption, replace the current local development plans and form the basis for decision-making on planning applications under the TCPA. It will also inform IACC s preparation of its Local Impact Report, which will be submitted to the Secretary of State in response to the DCO application. 1.7 Document structure The remainder of this document is structured as follows: Chapter 2 sets out changes to the Power Station including its construction, and design and layout, and the associated effects, as well as Horizon s proposed responses to those effects; Chapter 3 sets out changes to the Off-site Power Station Facilities and the associated effects, as well as Horizon s proposed responses to those effects; Chapter 4 details changes to Horizon s assumptions about the number of workers and the requirement for different types of workers over time, as well as how Horizon is proposing to maximise skills, training and education opportunities; Chapter 5 specifies changes to how Horizon proposes to accommodate the construction workers, and sets out why this revised approach has been selected; Chapter 6 identifies changes to how Horizon proposes to transport its construction workers and materials; Chapter 7 explains the structuring of mitigation measures that Horizon proposes to mitigate the effects of the Project, and highlights key mitigation; Chapter 8 describes how Horizon will structure delivery of the benefits that the Project will bring to communities; Chapter 9 provides an update on the ongoing assessments that are being undertaken; Chapter 10 provides details of where and when consultation events will take place and sets out how Horizon will take responses into account and sets out next steps; Appendix A provides further details on the consultation feedback which has influenced these Project changes; Appendix B confirms the source and status of environmental information for the Project as a whole; Appendix C identifies Horizon s approach to assessing the potential cumulative and transboundary effects of the changes to the Project; and Appendix D provides drawings associated with the Off-line A5025 Highways Improvements. Appendix E explains summaries and acronyms used in this document. Page 14

25 1.8 Scope to influence the changes Details of the scope to influence the changes to the Project are set out at the end of each of chapters 2 to 8 and summarised below: The Power Station (see chapter 2) Horizon s proposals for the Power Station itself are largely driven by the need to deliver and operate the Power Station in a timely, safe and efficient manner. There is therefore very little scope to influence the proposed changes to the Power Station. Off-site Power Station Facilities (see chapter 3) Horizon welcomes your views on its proposals to consolidate the Off-Site Power Station Facilities site in Llanfaethlu and whether there are particular things that should be considered in terms of mitigation. Accommodating the construction workers (see chapter 5) Horizon welcomes your views on its overall approach to temporary workers accommodation, which is to locate all purpose-built temporary workers accommodation on the WNDA, at the Site Campus. We would also be interested to understand what mitigation measures you think Horizon should prioritise. Transporting the construction workers and materials (see chapter 6) Horizon welcomes views on the changes to the proposals for the temporary Logistics Centre at Parc Cybi, temporary Park and Ride facility at Dalar Hir and the A5025 Highways Improvements. We would also be interested to understand what mitigation measures you think Horizon should prioritise. Mitigating impacts and enhancing benefits (see chapters 7 and 8) Horizon welcomes your views on how you consider it could most effectively mitigate the effects of the Project and deliver community benefits. Page 15

26 2 The Power Station 2.1 Introduction This chapter describes the changes to how the Power Station would be constructed and tested prior to operation and provides a preliminary view on the likely environmental effects and potential mitigation measures. 2.2 Stage Two Pre-Application Consultation feedback The Stage Two Pre-Application Consultation did not include a specific request for feedback on the layout or design of the Power Station but the opportunity was available to make general comments about the Project. The response has been summarised and is included in appendix A to this document. The LEMP is described later in this chapter and a summary of consultation feedback, including how we have been able to incorporate comments into the updated version of the LEMP, is also included at appendix A. 2.3 Building and operating the Power Station Due to the scale and complexity of building and operating the Power Station, the task will be undertaken in stages. Horizon provided significant detail on the construction and operation of the Power Station in chapter 5 of the Stage Two Pre-Application Main Consultation Document, which has not changed and which is not repeated here. This chapter provides a high-level summary of the staging of construction and operation, alongside details of what has changed since the Stage Two Pre-Application Consultation. The stages are as follows: Stage One: Site Preparation and Clearance - Clearing the site and preparing it for development. Stage Two: Main Construction - Constructing the Power Station, including the nuclear reactor buildings and the majority of supporting buildings, facilities, plant and structures, the MOLF, and the two breakwaters. Stage Three: Commissioning and Operation - Testing and operating the Power Station as well as the construction of radioactive waste storage facilities. Stage Four: Decommissioning - Converting the site into an end state to be agreed with the relevant authorities and regulators. The indicative programme for the above activities is set out in table 2-1 and illustrated on figure 2-1: Page 16

27 Table 2-1 Power Station indicative programme Stage/activity Approximate duration Approximate start date Stage One: Site Preparation and Clearance (TCPA) Site Preparation and Clearance works Stage Two: Main Construction (DCO) 1 year 2018 Bulk earthworks 2 years 2019 MOLF and breakwaters construction 2 years 2019 Unit 1 construction 4 years 2020 Unit 2 construction 5 years 2021 Stage Three: Commissioning and Operation Unit 1 commissioning 1 year 2025 Unit 1 operation 60 years 2025 Unit 2 commissioning 1 year 2026 Unit 2 operation 60 years 2027 Spent fuel store construction (radioactive waste storage facility) Intermediate level waste store construction (radioactive waste storage facility) Stage Four: Decommissioning 1 year year 2033 Wylfa Newydd to be decommissioned following approximately 60 years of operation of each reactor Unit. Page 17

28 Figure 2-1 Indicative Power Station programme Stage One: Site Preparation and Clearance The SP&C stage is a series of works programmed to start prior to and then overlap with the early parts of the Main Construction stage. Prior to the SP&C works, Horizon has also completed archaeological trial trenching works across the WNDA. This work has revealed archaeological remains of potential interest at several locations and Horizon will begin further archaeological investigations later this year. At the Stage Two Pre-Application Consultation and at a separate TCPA consultation, Horizon described proposals for SP&C that would extend across the WNDA. Those works were anticipated to cover activities including site clearance and levelling, associated earthworks and drainage, along with the permanent closure and diversion of a section of Cemlyn Road and various Public Rights of Way (PRoW). Horizon has reviewed responses received to both consultations and decided not to proceed with the full range of activities previously proposed as part of SP&C. Instead, Horizon will pursue a reduced scope of works ahead of the grant of the DCO. It is anticipated that SP&C would take approximately one year to complete. The detailed programme and sequence will vary depending on seasonal constraints for some of the works, construction methods and processes adopted by the contractor, mitigation requirements and operational practicalities. Horizon intends to submit a separate TCPA planning application to IACC for SP&C in 2017 with the aim of commencing the works in January Consultation on this SP&C application is anticipated in summer In addition, the SP&C works will also be included in the DCO. Page 18

29 Changes to SP&C that have been made since the Stage Two Pre- Application Consultation are set out in table 2-2. Details of any changes to environmental effects are set out at the end of this chapter. Table 2-2 Stage One: Main Changes SP&C: Main changes since the Stage Two Pre-Application Consultation The indicative SP&C site area has increased from approximately 270 hectares to approximately 300 hectares, as shown on figure 2-2. The number of construction compounds has increased accordingly. Topsoil would no longer be removed and placed in temporary storage mounds at this stage. Rock outcrops would no longer be removed and used as a source of construction materials. Haul roads associated with removing the rock outcrops and topsoil are no longer necessary. A security access route inside the perimeter fence is no longer necessary. Areas of contaminated land and Japanese knotweed would now be treated on-site in a dedicated compound rather than taken off-site. PRoW would now remain open at this stage, with activities in the vicinity controlled by marshals to ensure public safety. Access to Fisherman s Car Park along the existing public road would now remain open at this stage, with traffic management control of contractor s vehicles. Page 19

30 Figure 2-2 SP&C: indicative location Main SP&C activities Establishing the main site compound, comprising: fencing and site security facilities, an area for material handling and storage and a secure parking area for plant and machinery; temporary structures providing offices, welfare and mess facilities, a fuel store and parking for office-based staff and the site workforce; and an overflow parking area (currently the area used as the car park serving the Wylfa Sports and Social Club) would be used as necessary and a new footpath link formed between it and the main site compound. Establishing road crossings, comprising: a new vehicular crossing of the existing Magnox power station (Existing Power Station) access road for the access and egress of construction vehicles to the north of the site from the main site compound; and an existing vehicular crossing of Cemlyn Road, which will be formalised for use by construction vehicles. Other activities, comprising: a remediation processing compound, within which contaminated material will be treated; establishing additional compounds, for the storage of plant and materials; Page 20

31 treating invasive non-native species; erecting construction fencing around the perimeter of the SP&C application site; realigning a tributary of Afon Cafnan; managing protected species, including translocation; clearing buildings and all other existing above ground structures; and clearing vegetation. The revised scope of work will reduce physical impacts on the WNDA prior to the grant of the DCO. This is a response to concerns raised through consultation feedback. If the DCO is not granted or the Wylfa Newydd Project does not proceed, all Project related structures would be removed and the affected land would be subject to a scheme of restoration to return it to an acceptable condition once agreed with IACC. The principles of that scheme will be set out in the forthcoming SP&C planning application. Stage Two: Main Construction Stage Two would not commence until after the DCO is granted. It may overlap with the final stages of Stage One. Stage Two will comprise the following activities: establishing the construction site, including the construction of temporary buildings and infrastructure; major civil works, including bulk earthworks to create building platform levels, deep excavation to allow the reactor buildings and associated main plant to be constructed on hard rock, and initial landscaping works to help mitigate noise and visual impacts; marine construction, including construction of the breakwaters and the MOLF; building construction and mechanical and electrical installation, which includes the construction of the reactor buildings and other buildings. The extensive use of cranes will be necessary at this point, potentially totalling at least 40 cranes on the Power Station Site. Three Very Heavy Lift Cranes each with a height of up to approximately 250m will be located on the Power Station Site. It is anticipated that these cranes would be on-site and in-use between 2020 and 2027; and final landscaping and demobilisation, where the construction plant and machinery is removed and the final landforms are completed. Horizon considers that the need for these activities is largely settled. Refinement of the construction plans will continue through ongoing discussions between Horizon, Menter Newydd and the main contractors and will be informed by the findings of the ongoing EIA process. More detail on the construction process is set out chapter 5 of the Stage Two Pre- Application Main Consultation Document. Page 21

32 Open top construction methodology Horizon has further refined its open-top construction methodology. This method has been used very successfully during the construction of the ABWRs in Japan and Horizon intends to make extensive use of this at the Power Station Site. The key advantages are: shorter construction schedule by enabling parallel working. Mechanical and electrical installation can start sooner and civil/building construction can continue once it has started. Historically buildings were completed before the mechanical and electrical equipment installation began; and larger completed modules can be brought to site and installed. This brings all the advantages of modular construction: - reducing site work, which is generally more expensive than work in a fabrication shop; - increasing the work content executed in a more easily controlled factory environment, including some testing and commissioning of modules; and - further reducing the overall construction schedule. Advances in construction crane technology mean that much larger components and modules can be lifted into position through the open building top using a Very Heavy Lift Crane. When using the open top method, the building walls are constructed then major items of equipment or modules, such as the reactor vessel, are placed into position through the temporary open top in the building. The floor above is then constructed and further equipment placed on that floor through the open roof while mechanical and electrical installation, piping and cabling, continues on the floor below. The current assessment is that it should be possible to use this technique in about 60% of the rooms on the nuclear power plant. There is a lot of heavy equipment in nuclear power plant buildings e.g. emergency diesel generators, reactor pressure vessel, heat exchangers, overhead cranes, condensers and feed water heaters. This heavy equipment needs to be installed in the correct position. The open top method allows easier installation of the heavy equipment, as equipment can be installed directly into the final position, unlike the traditional methods that require complex rigging and manipulation. Construction efficiency and quality can be enhanced by moving assembly and construction activities away from the excavation and away from the site in general, and performing the work in parallel in controlled and spacious environments. The drive to achieve this goal has resulted in larger and heavier assemblies being shipped, moved and placed on-site. Page 22

33 Figure 2-3 illustrates the methodology: Figure 2-3 Open top construction methodology Step 1. Placing of plant and equipment in the room After casting of the floor and walls of the room, selected plant and equipment are placed in the room. This is done before the roof beams are installed. Step 2. Upper & lower access platform supported on floor A temporary upper platform is then installed to provide access to install the roof beams and the permanent profiled metal decking on which the roof slab is cast. A temporary lower platform is also installed to support selected plant and equipment for the next phase of the process. 3. Upper platform & lower platform suspended from roof beams The platforms are then suspended from the roof and the legs removed to allow for floor coating works below equipment. Page 23

34 Changes to the Main Construction stage that have been made since the Stage Two Pre-Application Consultation are set out in table 2-3. Details of any changes to environmental effects are set out at the end of this chapter. Table 2-3 Stage Two: Main Changes Main Construction: Main changes since the Stage Two Pre-Application Consultation Refining the open top construction method, which shortens the construction schedule by enabling parallel working. This means mechanical and electrical installation can start sooner and civil/building construction can continue once it has started. Open top construction means that larger completed modules can be brought to site and installed, which has the advantages of reducing the on-site work. The Main Construction stage is predicted to last approximately seven years from early 2019 to late 2025, which is a saving of approximately three months. The improved approach to the design and construction of the reactor buildings also creates a saving of 10 months within this stage. Settlement ponds, drainage channels, stripping of topsoil and topsoil storage would now be provided in this stage rather than as part of the SP&C works. Stage Three: Commissioning and Operation There have been no material changes to the Stage Three Commissioning and Operation stage since the Stage Two Pre-Application Consultation. It is still the intention that the following activities would be undertaken: a progressive period of construction including pre-operational testing, followed by commissioning of the plant (start-up testing); operating the Power Station for approximately 60 years; each Unit will initially operate for 12 months followed by a one month outage for fuelling and maintenance. After this first outage is complete subsequent outages will occur after 17 to 23 months of operation; a longer shut down of each Unit once every 10 years for more significant maintenance; and construction and operation of spent fuel and waste storage and processing facilities. There have been no material changes to Horizon s proposed approach to operations, incidents and security since the Stage Two Pre-Application Consultation. Further details can be found in chapter 5 of the Stage Two Main Consultation Document. Table 2-4 Stage Three: Main Changes Commissioning and Operation: Main changes since the Stage Two Pre- Application Consultation There have been no material changes to the Commissioning and Operation stage since the Stage Two Pre-Application Consultation. Page 24

35 Stage Four: Decommissioning The Power Station would be decommissioned following approximately 60 years of operation and the approach would be consulted upon in accordance with the Nuclear Reactors (Environmental Impact Assessment for Decommissioning) Regulations 1999, as may be amended. To ensure that the specific environmental conditions following operation are known, the consultation process would begin in the final few years before operations cease. Within this timeframe, decommissioning would be undertaken as early as possible. The operational radioactive waste storage facilities and any additional decommissioning waste management facilities (if required) would provide safe and secure facilities at the Power Station for housing certain categories of radioactive wastes in the interim period prior to disposal to the UK Government s planned geological disposal facility. It is currently assumed that they would need to remain in situ beyond the end of power generation. Horizon therefore plans to position them together in a single location that could be operated independently to assist in the efficient future decommissioning of the majority of the Power Station. Further details on Horizon s approach to managing radioactive wastes and spent fuel are set out in the section below. There have been no material changes to Horizon s proposed approach to decommissioning since the Stage Two Pre-Application Consultation. Further details can be found in chapter 5 of the Stage Two Main Consultation Document. Table 2-5 Stage Four: Main Changes Decommissioning: Mains changes since the Stage Two Pre-Application Consultation There have been no material changes to the Decommissioning stage since the Stage Two Pre-Application Consultation. 2.4 Management of radioactive waste and spent fuel Once operational the Power Station will create radioactive wastes which need to be processed and stored before they are ready to be removed from the Power Station Site. Horizon s main plant buildings include a radioactive waste building to process and manage radioactive waste for both UK ABWRs. This will be constructed during the Main Construction stage of the Project for use through commissioning and at the start of operation of the Power Station. We are now proposing a single larger facility rather than two smaller facilities. In addition, Government policy requires us to have facilities for interim longer term storage of spent fuel, intermediate level waste and dry high level radioactive waste at the Power Station Site. Horizon s proposal includes an intermediate level radioactive waste storage facility which remains Page 25

36 unchanged from the Stage Two Pre-Application Consultation. However, we are now proposing a single combined spent fuel store and high level radioactive waste storage facility rather than separate facilities, which will be constructed to be available 10 years after the start of operations (2035). These facilities will provide safe and secure storage facilities at the Power Station Site until the radioactive waste can be repackaged for transfer to the planned geological disposal facility explained in the section above. Prior to this time radioactive waste will be stored within the radioactive waste building and the small amount of spent fuel generated will be stored within the spent fuel cooling pools. We estimate radioactive waste could remain on the Power Station Site for up to approximately 140 years after the end of electricity generation, although we expect to be able to reduce these timescales. 2.5 Design and layout of the Power Station The design of the Power Station has continued through ongoing discussions between Horizon, Menter Newydd and the main contractors. Following this Early Contractor Involvement, changes to the Power Station design since the Stage Two Pre-Application Consultation are set out in table 2-6. Details of any changes to environmental effects are set out at the end of this chapter. Table 2-6 Power Station: Main Changes Power Station: Main changes since the Stage Two Pre-Application Consultation Site area The Power Station Site area, as shown in chapter 1, is smaller and the perimeter fence is now located further away from the A5025 and local communities. Power Station buildings and other structures The reactor buildings and associated buildings are now combined on a single power island rather than two independent areas. The power island is further from the A5025 and local communities. Power island is a term used for the part of the power station that will contain the main plant required to generate power. It will consist of two reactor buildings, two turbine buildings, two control buildings, one service building and one radioactive waste building. Appropriate flexibility will be provided as to the locations of these buildings as described in chapter 1. Some of the buildings, structures and features needed to generate power or support the Power Station have been combined to make the Power Station design and construction more efficient. Further details are contained in table 2-7 below. The Cooling Water Structure outfall would now be in the same location as the Existing Power Station outfall. This was previously identified as one of two potential locations. This location would allow the channel already cut into the Page 26

37 Power Station: Main changes since the Stage Two Pre-Application Consultation sea bed to be re-used and is Horizon s preference accordingly. Permanent car parking for operational staff, including during outage periods, will be in two locations as shown on figure 2-5. The preferred location for the Training and Simulator Building has moved from the east of the Power Station to a location to the south of the Power Station. The revised location is further from the village of Tregele. Platform levels The main building platform level for the power island would potentially increase, from 14 metres Above Ordnance Datum (AOD) to between 14 and 18 metres AOD. The platform level for the administration and support buildings, as well as the western laydown area, would potentially reduce from between 20 and 22 metres AOD to between 19 and 22 metres AOD. The platform level for the eastern laydown area during construction (closest to the A5025) was proposed to be between 26 and 28 metres AOD. It is now proposed to vary the platform levels in this area into a series of terraces to follow the natural landform of the existing ground (between 20 and 40 metres AOD). Further details on significant changes to the dimensions of specific buildings and structures are set out in table 2-7 below. The dimensions shown are Horizon s current best understanding of the likely dimensions and further details on the approach to flexibility are set out in chapter 1. These changes have arisen largely due to the ongoing design process. Additionally, the following buildings now perform the following altered functions: the radioactive waste building is now a combined facility for both reactors rather than a separate facility for each reactor; the spent fuel store now includes the high level radioactive waste store; the back-up building, which would provide alternative safety management capacity during an emergency if the main control building and associated safety systems were not operational, is now a combined facility for both reactors rather than a separate facility for each reactor; the on-site emergency vehicle garage now also contains space for heavy machinery, which was previously to be kept on-site in a separate building; and a single service building is now proposed for both reactors instead of a separate building for each reactor, although this does not result in a significant increase in the size of the building. The service building would accommodate functions essential to the operation of the reactor units, such as the personnel monitoring and welfare facilities, and other support Page 27

38 functions for the operation of the Power Station that need to be located close to the units. Table 2-7 Power Station: Changes to indicative building/structure dimensions Building/structure Stage Two Consultation (indicative width x depth x height) Stage Three Consultation (indicative width x depth x height) 1 x radioactive waste building 50m x 50m x 25m 70m x 60m x 30m (previously 2 x buildings) 2 x turbine buildings 120m x 80m x 40m 130m x 80m x 35m 2 x control buildings 70m x 45m x 25m 60m x 45m x 20m 1 x back-up building 50m x 50m x 35m 70m x 70m x 25m (previously 2 x buildings) 2 x heat exchanger buildings 70m x 45m x 25m 65m x 70m x 10m 1 x garage for mobile emergency vehicles 35m x 20m x 10m 1 x auxiliary boiler building 105m x 40m x 15m 1 x solid LLW processing facility 70m x 60m x 20m 1 x spent fuel storage facility 185m x 125m x 25m 1 x maintenance and workshop building 110m x 50m x 20m 90m x 20m x 10m 60m x 30m x 15m 110m x 45m x 10m 170m x 130m x 25m 90m x 45m x 20m The Power Station will continue to include many buildings, structures, features and plant that have not materially changed since the Stage Two Pre-Application Consultation. Further details on these buildings and structures are set out in chapter 5 of the Stage Two Main Consultation Document. The indicative layout of the Power Station Site is illustrated on figure 2-4 below: Page 28

39 Figure 2-4 Power Station Site indicative layout Page 29

40 Appearance of the permanent Power Station buildings During previous consultations, Horizon sought feedback on the appearance of the Power Station Site. The feedback received expressed a broad range of views with little consensus on a particular architectural style, however, the following conclusions could be drawn: the use of colours that are common in nature at north-west Anglesey was generally supported. In previous consultations this was described as a blend approach rather than a bold approach to colour; and the appearance of buildings is regarded as an important way of influencing the perceived scale and massing. In addition to consultation, Horizon has continued to engage with Design Commission for Wales, IACC and other stakeholders to further develop the architectural approach to the Power Station. Following this feedback, the following principles have been established: the Power Station Site will be designed comprehensively to ensure all components complement each other and the surrounding landscape where possible; the design strategy will draw inspiration from the local landscape and culture; the design will be distinctive with a consistent approach to detailing; and the design will celebrate the industrial character of this type of development with a consistent and cohesive approach to building shape and appearance. Horizon proposes to create a common architectural language, with some buildings appearing deliberately modest to blend into the landscape and others, such as the administration and entrance buildings for example, being more eye-catching. The Existing Power Station uses strong colour cues taken from the surrounding countryside. At this stage, Horizon also regard colour as being an important way of defining Wylfa Newydd. Horizon is proposing to use darker shades of colour to reflect the local landscape on the majority of smaller buildings. As a clear contrast, Horizon is proposing a strong expression of colour on the reactor buildings. Indicative colours are shown on figure 2-5 below. Page 30

41 Figure 2-5 Indicative Power Station colour palette It is considered that colour would be applied to lower level structures to help integrate the development into the landscape. At this stage it is envisaged that the reactor buildings would be more prominent as illustrated in figure 2-7. The illustrative image on figure 2-6 shows an example entrance building, complete with darker shades of colour and exaggerated horizontal forms. Figure 2-6 Concept sketch of an entrance building Page 31

42 2.6 Marine Off-Loading Facility and breakwaters A MOLF continues to be required to facilitate the construction of the Power Station by enabling the delivery of key construction materials by sea. It will therefore be constructed early in the construction programme and will be operational throughout the Main Construction stage. Use of the MOLF will greatly reduce the number of deliveries by road and therefore the volume of traffic and its associated environmental effects. Current estimates are that some 60% to 80% of all construction materials (by weight) including the vast majority of Abnormal Indivisible Loads (AILs) would be delivered via the MOLF. The MOLF infrastructure would continue to be incorporated into the design of the Eastern Breakwater. Both the Eastern Breakwater and the Western Breakwater are required to maintain suitable and safe wave conditions for the intake of the Cooling Water System. The breakwaters have the additional benefit of offering protection for vessels berthing at the MOLF, particularly in stormy conditions, enhancing its availability for deliveries. The MOLF will have three quays: one mainly for the delivery of large construction components including AILs, and two mainly for bulk materials such as aggregates and cement. It is intended that these quays will be retained for the operational phase of the Power Station. This would allow for certain deliveries to potentially be made by sea, such as replacement turbine rotors, generators and other heavy equipment. Changes to the MOLF and breakwaters that have been made since the Stage Two Pre-Application Consultation are set out below in table 2-8. The dimensions shown are Horizon s current best understanding of the likely dimensions and further details on the approach to flexibility are set out in chapter 1. Details of any changes to environmental effects are set out at the end of this chapter. Table 2-8 MOLF and Breakwaters: Main Changes MOLF and Breakwaters: Main changes since the Stage Two Consultation The Eastern Breakwater has increased in length by up to approximately 60m and now totals up to approximately 150m. Further details on the approach to flexibility are set out in chapter 1. The Western Breakwater has reduced in length by up to 50m, now totalling up to approximately 500m. This breakwater has also moved approximately 20 metres to the west (further out to sea). Further details on the approach to flexibility are set out in chapter 1. Dredging in front of the Porth-y-pistyll shoreline was previously proposed in one of two ways: underwater; or, using a temporary coffer-dam (semi-dry construction). The semi-dry approach is now preferred because it reduces the volume of material that needs to be excavated underwater, avoids the need for underwater blasting, and improves the safety and control of construction Page 32

43 MOLF and Breakwaters: Main changes since the Stage Two Consultation activities, which can be undertaken in the dry behind the cofferdam. The design of the MOLF now provides two platforms (with three quays) with several mooring dolphins, rather than one long quay wall. The changes increase the cargo handling capacity of the MOLF and reduce the amount of seabed excavation required. Marine vessel movements would increase from approximately 48 per month to approximately 55 per month. 2.7 Wales Coast Path The Stage Two Pre-Application Consultation presented two possible options for the permanent routing of a section of the Wales Coast Path within the WNDA. Consultation feedback expressed a preference for the coastal route. Although Horizon has tried very hard to make that work, ultimately it has selected the inland route, as shown on figure 2-10 for reasons, including: the coastal route would require a fully or partially enclosed footbridge to be provided across the frontage of the cooling water intake structure. The footbridge may need to be up to approximately 250m long depending on finished ground levels. To protect the intake for the Cooling Water System, the footbridge may require a clear span of up to approximately 200m. If this is the case the bridge would need to be a significant structure such as a cable or suspension bridge, which is not cost effective, and may potentially require tall support towers; and the coastal route would result in residual safety and security concerns, primarily due to the routing of the public near to the intake for the Cooling Water System, which is a critical component of the safe functioning of the nuclear power station. To help mitigate the inland diversion of the Wales Coast Path, a network of footpaths will also be created within the WNDA, to provide alternative sea views and other attractive routes for recreational walkers during operation of the Power Station. These will include a route along the Afon Cafnan and a route over the new drumlin landform. This network of footpaths would link to Cemlyn Bay, Wylfa Head and the re-opened Fisherman s Car Park. In addition, a dual footpath and cycle path would be created linking the Copper Trail to Cemaes, via Penrhyn. Page 33

44 Figure 2-7 Concept sketch of view from diverted Wales Coast Path The proposed alignments of the Wales Coast Path during and after construction are shown in figure 2-8 below. Figure 2-8 Wales Coast Path diversion Page 34

45 Table 2-9 Wales Coast Path: Main Changes Wales Coast Path: Main Changes since the Stage Two Consultation Diversion of the Wales Coast Path was previously proposed along one of two general routes: either seaward (the coastal route) or inland of the Existing and proposed Power Stations. The inland route is now required mainly due to technical, safety and security considerations. 2.8 Preliminary Environmental Information The PEI tables 2-10 and 2-11 presented below consider key likely changes in the Project that in some instances lead to a change in environmental effects from that reported in the Stage Two Pre-Application Consultation PEI Report. The first table considers the construction phase and the second table the operational phase. In each case, a precautionary approach has been taken and effects are considered on a worst case basis. The first column of each table sets out the relevant environmental receptor involved and the change to the activity affecting that receptor since the Stage Two Pre-Application Consultation. The second column provides the assessment of the change of environmental effect since the Stage Two Pre-Application Consultation. The third column provides the preliminary conclusion on the likely residual environmental effect, following the Project changes. For details of environmental effects that have not changed since the Stage Two Pre-Application Consultation, please see Volumes B1 to B16 of the Stage Two Pre-Application Consultation PEI Report, in particular in each volume the tables entitled Effects during Construction and Effects during Operation. Table 2-10 Receptor and change to activity since Stage Two Pre- Application Consultation Public Access and Recreation Preliminary Environmental Information: Power Station Construction Change of environmental effect since Stage Two Pre- Application Consultation Preliminary environmental information anticipated residual effect Receptor: Users of access roads and car parks Stage Two: The access road to the Fisherman s car park would be temporarily closed during the SP&C works (albeit with access retained at certain periods during the evenings and weekend) to enable the removal of rock This was anticipated to be a minor adverse effect in Stage Two. The construction proposals at Stage Two meant that the public would not be able to access the car park from the start of the SP&C period. Public access along the access road to the This is still likely to be a minor adverse effect. Page 35

46 Receptor and change to activity since Stage Two Pre- Application Consultation outcrops on the WNDA, following which it would be permanently closed during Main Construction. What has changed: The rock outcrops are no longer being removed and so the access road to Fisherman s car park would remain open for the SP&C period with traffic management measures in place. The access road would still need to be closed during Main Construction to allow for the Power Station to be constructed. Noise and Vibration Receptor: Residential properties and recreational receptors (noise from marine works) Stage Two: Approximately 48 marine vessel movements per month (29 bulk carrier, 24 Ro-Ro) during construction. What has changed: An additional 7 vessel movements per month, now totalling approximately 55 marine vessel movements per month (35 bulk carrier, 20 Ro-Ro) during construction. Receptors: Residential properties (in: Cemaes village, on the A5025 between Cemaes and Tregele, Tregele village, outlying residential properties west of WNDA, outlying residential properties south of WNDA, outlying residential properties east of WNDA, North Page 36 Change of environmental effect since Stage Two Pre- Application Consultation Fisherman s car park will now be maintained during SP&C works. As such, adverse effects remain, but are reduced given the shorter duration of the access road closure. This was anticipated to be a minor adverse effect in Stage Two. The marginal increases in peak and average monthly shipping movements are not anticipated to increase noise effects at affected receptors. Ongoing noise modelling is being undertaken to confirm likely noise levels and receptors affected; however, pending those results moderate adverse effects cannot yet be discounted. This was anticipated to be a major adverse effect in Stage Two. Horizon is continuing to undertake detailed construction noise and traffic noise modelling. While embedded and good practice mitigation will be applied, until Preliminary environmental information anticipated residual effect This is likely to be a minor to moderate adverse effect This is still likely to be a major adverse effect.

47 Receptor and change to activity since Stage Two Pre- Application Consultation of Llanfechell, educational facilities, recreational receptors (inc. PRoWs), commercial properties (construction noise). Stage Two: Potentially significant construction noise and vibration effects were identified as a result of construction at certain locations on the WNDA based upon preliminary plant list and modelling. It was noted that the number of receptors affected may change as designs evolved. What has changed: The layout of the site has been optimised to a smaller configuration and as a result the mounding proposals (provided via the LEMP) have also been updated. Change of environmental effect since Stage Two Pre- Application Consultation noise modelling is complete, Horizon is continuing to take a precautionary approach. As such Horizon is continuing to reflect a major adverse effect at certain receptors. Preliminary environmental information anticipated residual effect Soils and Geology Receptors: Best and Most Versatile (BMV) Soils (Grades 2 and 3a), Grade 3b Soil, Grade 5 soil Stage Two: Topsoil and subsoil were not to be stripped before laying out the security track, new haul roads, landscape mounds, and rock storage area What has changed: Topsoil and subsoil would now be stripped and re-used sustainably on-site. This was anticipated to result in minor to major adverse effects in Stage Two. The Stage Two proposals would have lead to severe damage/loss of the soils as a resource. The revised proposals minimise this by stripping topsoil before undertaking works, and reusing it on-site. Taking a precautionary approach however results in an overall neutral effect to that previously noted. This is still likely to be a minor to moderate adverse effect. Receptors: Porth Wnal Dolerite This was anticipated to result This is likely to Page 37

48 Receptor and change to activity since Stage Two Pre- Application Consultation Regionally Important Geological Site (RIGS), Porth Wnal Granite RIGS Stage Two: The Cooling Water System outfall would be located in one of two locations: (a) the preferred option located at Porth Wnal, which affected the Porth Wnal Dolerite RIGS or (b) an alternative option located at Wylfa Head, which more seriously impacted the Porth Wnal Granite RIGS. What has changed: The preferred location for the Cooling Water System outfall is option (a), which is located within the Porth Wnal Dolerite RIGS. Change of environmental effect since Stage Two Pre- Application Consultation in moderate to major adverse effects in Stage Two (dependent on option) selected. Optimisation has resulted in a decision to locate the outfall away from the key geological feature of the Porth Wnal Dolerite RIGS. While the preferred location is within the Porth Wnal Dolerite RIGS, it is located away from key features of the RIGS. This avoids the major adverse effects of the locating the outfall in the Porth Wnal Granite RIGS, meaning that only moderate adverse effects would arise. Preliminary environmental information anticipated residual effect be a moderate adverse effect. Terrestrial and freshwater ecology Receptors: Chough, breeding birds, over-wintering and passage birds, bats, red squirrel Stage Two: It was proposed that there were be removal of rock outcrops located on WNDA. What has changed: The rock outcrops are no longer being removed. This was anticipated to result in minor adverse effects in Stage Two. The removal of the rock outcrops led to the potential for mobile species to be affected by noise, vibration, lighting or visual disturbance during those works. Because these works are no longer proposed, there is no potential for these effects to occur. This is likely to be a negligible effect. Landscape and Visual Changes to bulk earthworks and deep excavations Receptor: Current Anglesey Special Landscape Area (SLA). Stage Two: Page 38 This was anticipated to result in minor adverse effects in Stage Two. Landscape and visual impacts This is still likely to be a minor adverse effect.

49 Receptor and change to activity since Stage Two Pre- Application Consultation Bulk earthworks and deep excavations would change the character of the SLA. What has changed: Specific earthworks and excavation details have changed - mound heights have been generally reduced but the overall envelope remains to allow for flexibility of stockpiling during construction. Receptor: Boat users offshore Stage Two: Bulk earthworks and deep excavations would change the views for this receptor. What has changed: Specific earthwork and excavation details have changed - mound heights have been generally reduced but the overall envelope remains to allow for flexibility of stockpiling during construction. Change of environmental effect since Stage Two Pre- Application Consultation will continue to occur due to the requirement for major earthworks and machinery in the area. These effects are likely to remain adverse and occur over the medium term but would be temporary in nature. Mitigation in the form of the LEMP will continue to be developed. This was anticipated to result in moderate adverse effects in Stage Two. Landscape and visual impacts will continue to occur due to the requirement for major earthworks and machinery in the area. These effects are likely to remain adverse and occur over the medium term but would be temporary in nature. Mitigation in the form of the LEMP will continue to be developed. Construction of the Cooling Water Systems, breakwaters and MOLF Receptors: Isle of Anglesey Area of Outstanding Natural Beauty (AONB), North Anglesey Heritage Coast, Boat users offshore Stage Two: Construction of the Cooling Water System, breakwaters and MOLF, including marine excavation (dredging) and temporary installation of cofferdams would result in This was anticipated to result in major adverse effects in Stage Two. Landscape and visual impacts will continue to occur due to the requirement for major earthworks and machinery in the area. These effects are likely to remain adverse, occur over the medium term but be temporary in nature. Mitigation in the form of the LEMP will continue to be Preliminary environmental information anticipated residual effect This is still likely to be a moderate adverse effect. This is still likely to be a major adverse effect. Page 39

50 Receptor and change to activity since Stage Two Pre- Application Consultation changes to the landscape and seascape characters. What has changed: The above marine works are still proposed although the potential size and location of the breakwaters has increased in totality following further development of the design. Maximum parameters for the size of the breakwaters have been considered in this assessment to allow for further refinement of the design. Page 40 Change of environmental effect since Stage Two Pre- Application Consultation developed. Preliminary environmental information anticipated residual effect Construction of internal roads, car parking, security fencing and permanent lighting Receptors: Mynydd Mechell proposed SLA, Parys Mountain proposed SLA Stage Two: Construction of the internal roads, car parking, security fencing and permanent lighting would result in changes the landscape and seascape character. What has changed: The above works are still proposed although with the reduction in footprint of the overall Power Station Site there is a reduced area of the site which is affected by the works. Receptor: Local residents in Tregele and Cemaes Stage Two: Construction of the Power Station within the WNDA would This was anticipated to result in major adverse effects in Stage Two. Landscape and visual impacts will continue to occur due to the requirement for major earthworks and machinery in the area. These effects are likely to remain adverse and occur over the medium term but would be temporary in nature. Mitigation in the form of the LEMP will continue to be developed. This was anticipated to be a major adverse effect in Stage Two. Landscape and visual impacts will occur due to the requirement for major This is still likely to be a major adverse effect. This is still likely to be a major adverse effect.

51 Receptor and change to activity since Stage Two Pre- Application Consultation result in changes to views. What has changed: Project optimisation has led to a smaller power island within the WNDA. This groups some of the larger buildings closer together, while allowing for appropriate flexibility in building location. Change of environmental effect since Stage Two Pre- Application Consultation earthworks and machinery in the area including three 250m Very Heavy Lift cranes, however, the landform during construction has been further developed to reduce effects. These effects are likely to remain adverse and occur over the medium term but would be temporary in nature. Preliminary environmental information anticipated residual effect Archaeology and Cultural Heritage Receptor: Caerau House, Llanfairynghornwy, a Grade II* Listed Building Stage Two: Construction activities would temporarily visually affect the setting of this heritage asset. What has changed: Additional site inspection has confirmed that while construction activities would be visible from the driveway and farm buildings, views from Caerau House would be screened. This was anticipated to be a moderate adverse effect in Stage Two. No material changes to effects are anticipated. This is still likely to be a moderate adverse effect. Table 2-11 Preliminary Environmental Information: Power Station Operation Receptor and change to activity since Stage Two Pre- Application Consultation Change of environmental effect since Stage Two Pre- Application Consultation Preliminary environmental information anticipated residual effect Public Access and Recreation Receptor: Wales Coast Path Stage Two: Optionality was presented as to the proposed realignment of the Wales Coast Path to one of two alignments: (a) This was anticipated to be either major beneficial effect (if the seaward path was selected) or major adverse effect (if the inland path was selected) in Stage Two Because the inland route has This is likely to be a major adverse effect. Page 41

52 Receptor and change to activity since Stage Two Pre- Application Consultation seaward of both the Power Station Site and the Existing Power Station, which would increase accessibility to the coastline, including access to Porth y Gwartheg and Porth y Galen ddu; and, (b) inland of the Power Station Site and Existing Power Station, which would reduce accessibility to the coastline and increase the length of the route between Cemlyn Bay and Wylfa Head. What has changed: Change of environmental effect since Stage Two Pre- Application Consultation now been chosen for the reasons set out in this chapter, this means that the major adverse effect identified at Stage Two will be realised. However, Horizon will create a network of footpaths within the WNDA to provide alternative sea views and other attractive routes for recreational walkers during operation. Preliminary environmental information anticipated residual effect Following further analysis on safety, security matters, and cost efficiency (given the need for extensive and potentially intrusive bridging work for the seaward option. which would need to bridge the cooling water outfall) Horizon is now pursuing the inland route as the preferred route. Groundwater and Surface Water Receptors: Tre r Gof Site of Special Scientific Interest (SSSI), Cemlyn Bay SSSI and Special Area of Conservation (SAC) and Afon Cafnan catchment, Tre f Gof SSSI catchment, Cae Gwyn SSSI catchment, Secondary B aquifer Stage Two: Active long-term dewatering of basements was proposed in Stage Two. This was anticipated to be a moderate adverse effect in Stage Two. Long term dewatering would have resulted in less available water within surface water features from groundwater recharge. That had the potential to alter the status of, and potentially harm, receptors. The change from long term dewatering to no dewatering means that the adverse effects This is likely to be a negligible effect. Page 42

53 Receptor and change to activity since Stage Two Pre- Application Consultation What s changed: Long-term dewatering is no longer proposed. Terrestrial and Freshwater Ecology Change of environmental effect since Stage Two Pre- Application Consultation identified in Stage Two would no longer arise. Preliminary environmental information anticipated residual effect Receptors: Otter, water vole, freshwater habitat, fish and Cae Gwyn SSSI Stage Two: Active long-term dewatering was proposed in Stage Two. What has changed: Long-term dewatering is no longer proposed. Landscape and Visual Receptors: Local seascape character, AONB, heritage coast, walkers on Wales Coast Path and boat users offshore Stage Two: The MOLF and breakwaters would be retained throughout the operational period, meaning that views as well as the landscape and seascape characters would remain altered for this time (albeit the same as during the construction period). What has changed: The proposed retention of the MOLF and breakwaters has not changed, however the Eastern Breakwater has increased in length by up to This was anticipated to be a moderate adverse effect in Stage Two. Long term dewatering could have resulted in deterioration in habitat quality/habitat modification. The change from long term dewatering to no dewatering means that the adverse effects identified in Stage Two would no longer arise. This was anticipated to be a moderate adverse effect in Stage Two. The increase in size of the Eastern Breakwater means the breakwater is more visible to receptors. Although the size of the Western Breakwater has reduced in size and is essentially moved further out to sea this is not considered to reduce the overall effect. This is likely to be a negligible effect. This is still likely to be a moderate adverse impact. Page 43

54 Receptor and change to activity since Stage Two Pre- Application Consultation 60m (total 150m) and the Western Breakwater has reduced by up to 50m. The Western Breakwater has also been moved by up to 20m to the west (further out to sea). Archaeology and Cultural Heritage Receptor: Caerau House, Llanfairynghornwy, a Grade II* Listed Building, and its associated stables (a Grade II Listed Building) and gate piers (a Grade II Listed Building). Stage Two: Operation of the Power Station and construction of spent fuel, intermediate level waste and high level waste storage facilities would visually affect the setting of this heritage asset. What has changed: The layout of the Power Station Site has been amended to consolidate activities on a single power island. Further assessment has been undertaken. Change of environmental effect since Stage Two Pre- Application Consultation This was anticipated to be a moderate adverse effect in Stage Two. Further assessment has confirmed that while the Power Station (in the revised indicative layout set out in this document) would be visible from the driveway and farm buildings, views from Caerau House would be screened through the implementation of the LEMP. Preliminary environmental information anticipated residual effect This is likely to be a minor adverse effect. No changes to the intra-development effects or cumulative effects as recorded in the Stage Two PEI Report are anticipated as a result of these changes. More information on Horizon s approach to assessing such effects is set out in Appendix C to this document. Page 44

55 2.9 Proposed mitigation As shown in tables 2-10 and 2-11 above, many of the changes listed in this chapter do not materially change the effects of the Power Station on local receptors, including communities. In addition to this, Horizon is preparing a comprehensive package of additional mitigation. The main mitigation measures are set out below and details of Project-wide mitigation measures are set out in chapter 7. Landscape and Environmental Masterplan The LEMP is a critical component of mitigating the Project during both the construction and operational phases, by helping to: visually integrating the Power Station into the existing landscape context; reducing noise and vibration from the WNDA; delivering coordinated and multi-purpose environmental enhancements; and providing a high quality green infrastructure setting for the operation of the Power Station. The LEMP will do this by: creating a new landscape setting that reflects the existing open, rolling, drumlin landscape character, in conjunction with an appropriate architectural design; using natural resources efficiently, for example by retaining excavated material on-site to create building platforms and landscape mounding. This approach also avoids the effects that might otherwise be experienced from transporting excavated material off-site and the consequential effects on the A5025 and local road network; retaining and enhancing existing woodland, scrub, hedgerows and grassland habitats where possible; providing a range of wildlife habitats for biodiversity improvements; planting for new woodland to supplement visual screening provided by landscape mounding and to provide locally distinctive features, whilst respecting the relatively open nature of the existing landscape character; providing a network of new footpaths to replace routes closed due to construction and to serve the local communities and other footpath users; providing a safe temporary viewing area for visitors to view construction activities; providing buffer zones where necessary, for example, between the proposed landscape mounds and Tre r Gof SSSI and other sensitive receptors, to help safeguard them from the effect of construction works; developing a phased construction sequence to provide early landscape mitigation on the outer parts of the WNDA, which would help to screen or soften views and provide noise attenuation for construction activities from the surrounding area; and considering opportunities for the sensitive return of land to agricultural use, in conjunction with biodiversity improvements, with new field Page 45

56 Table 2-12 boundaries reflecting the surrounding landscape pattern. The most likely agricultural use is grazing by sheep or cattle. Landscape and Environmental Masterplan: Main Changes Landscape and Environmental Masterplan: Main changes since the Stage Two Pre-Application Consultation The landscape mounds have been reviewed to give a more natural shape to the landscape in keeping with the existing surrounding drumlins. They will continue to help screen the Power Station from surrounding viewpoints and will appear more consistent with the existing landscape. Landscape mounding will continue to range from 30 metres AOD to 50 metres AOD, but the majority will now not exceed 40 metres AOD. The gradients of the landscape mounding would now be more varied, typically ranging from 1:6 to 1:18, rather than 1:6 to 1:10. Mounding facing specific areas such as Tregele would continue to be constructed at 1:2 and planted with native trees and shrubs to soften their appearance. The proposed landform design would be similar to the gradients of existing drumlin landforms on and adjacent to the WNDA, which tend to range from 1:8 to 1:24. The construction sequence now aims to vegetate and landscape proposed mounds adjacent to Tre r Gof SSSI as early as possible in the construction process to reduce runoff of fines within soils. Further work has been undertaken on ecological mitigation and enhancement as set out later in this section. Page 46

57 Landscape and Environmental Masterplan at key stages Stage One: existing conditions This stage, shown in figure 2-9, represents the WNDA before the SP&C works are undertaken. Figure 2-9 LEMP Stage One Page 47

58 Stage Two: DCO approval Figure 2-10 presents an indicative snapshot of how the WNDA would be expected to look once the SP&C is part-complete. This stage of the LEMP is anticipated to occur in 2019 and can be summarised as follows: a temporary construction fence has been erected and vegetation within the fenced area has been cleared; existing vegetation and walls on the outer WNDA boundary would, where possible, be retained and enhanced; a small stretch of the Afon Cafnan tributary has been realigned with new native species of trees and wet grassland; internal field boundaries have been dismantled and the stone stockpiled for future re-use in later phases of landscape restoration; and protected and notable species have been carefully moved or relocated in accordance with legal and licence requirements. Tre r Gof SSSI is retained and protected. Page 48

59 Figure 2-10 LEMP Stage Two Page 49

60 Stage Three: earthworks and excavation for Unit 1 complete Following grant of the DCO, grading of the site and earthworks would commence. Figure 2-11 presents the third LEMP reference point and is anticipated to occur in approximately early 2021: Cemlyn Road and all footpaths inside the construction fence have been closed; the access road to Fisherman s Car Park is now closed for the construction period; topsoil has been stripped and some of the mounds constructed to help screen visual, noise and vibration impacts during construction; levelling works and deep excavations are complete to form working platforms and deep construction foundations; concrete batching plant has been installed; temporary fabrication and laydown areas are in place, including offices, welfare facilities, car parking, cranes and temporary storage; temporary haul roads have been laid out and access bridges have been constructed to move excavated materials around the site; the breakwaters and MOLF have been constructed at Porth-y-pistyll; the Power Station Access Road and its roundabout junction with the A5025 to the south-west of Tregele has been constructed. (This work is one of the Off-line Highway Improvements which is described further in chapter 6); and the temporary construction viewing area has been constructed for members of the public to observe construction of the Power Station. Page 50

61 Figure 2-11 LEMP Stage Three Page 51

62 Stage Four: Start of construction of Unit 2 At this point, there would be an increase in construction activity, with work progressing on both Units and an increased number of construction workers present on-site. The deep excavation for Unit 2 would follow the deep excavation for Unit 1. This reference point is indicatively illustrated on figure 2-12 and is anticipated to occur in approximately early 2022: mobile, tower and large construction cranes have been installed, including the Very Heavy Lift Cranes (up to approximately 250 metres); excavated materials are stored in temporary mounds, steeper than the final landform design, until material can be placed in its final location; other mounding and landscaping is progressively completed; Cooling Water System outfall works and discharge tunnels are complete; and majority of other buildings and structures within the Power Station Site are now under construction. Page 52

63 Figure 2-12 LEMP Stage Four Page 53

64 Stage Five: Permanent landscape setting created Figure 2-13 provides an indicative illustration of how the final landscaping proposals would appear on completion of construction and during early operation of the Power Station: construction compounds and plant have been removed and landscape reinstated; remaining landscape mounding has been completed and landscaped; most of the land not required for operation of the Power Station or other functions within the WNDA outside the Power Station Site has been returned to agricultural use; new field boundaries have been created using the original stones; the Wales Coast Path has been diverted to its final route. New footpaths have been created across the restored landscape to provide linkages between Cemlyn Bay, Wylfa Head, Porth yr Ogof and Porth Wylfa beach and Cemaes; vehicular access provided off the Existing Power Station Access Road with re-opening of the existing Fisherman s Car Park to provide easy access to the coastline and Wylfa Head; selected sedimentation ponds and drainage channels have been enhanced to provide ecological habitats; and All of the perimeter construction fence would have been removed releasing substantial parts of the WNDA for public use (the parts outside of the permanent operational and security fence defining the Power Station). Page 54

65 Figure 2-13 LEMP Stage Five Page 55

66 Other mitigation Since the Stage Two Pre-Application Consultation, further work has been undertaken on delivering potential ecological mitigation and enhancement via the LEMP including provision for: a mosaic of habitats across the WNDA; species-rich grassland on landscape mounding in order to achieve biodiversity improvements alongside the sensitive return of land to agriculture where appropriate; corridors for bat movement, comprising networks of woodland, scrub and hedgerow with intermittent areas of woodland and species rich grassland; chough foraging habitat, comprising species-rich grassland; and reptile habitat, comprising a mosaic of rough grassland and scrub, with connectivity provided by existing and proposed hedgerows or cloddiau. Further details on other mitigation measures, including a Code of Construction Practice (CoCP) and Code of Operation Practice (CoOP) are set out in chapter Scope to influence the changes Horizon s proposals for the Power Station itself are largely driven by the need to deliver and operate the Power Station in a timely, safe and efficient manner. There is therefore very little scope to influence the proposed changes to the Power Station. Page 56

67 3 Off-site Power Station facilities 3.1 Introduction Horizon is required to provide several Power Station facilities away from the Power Station Site as this allows Horizon to respond to emergencies that have a very low probability of occurring, such as severe flooding and earthquakes. This approach is in line with industry good practice and regulatory requirements. The required facilities have not changed since the Stage Two Pre- Application Consultation and remain as follows: MEEG - The MEEG would enable Horizon to store several specialist vehicles at a location close to but separate from the Power Station Site, allowing them to be rapidly deployed if needed to support an incident. The MEEG could also be used as a marshalling point for support arriving on Anglesey before onward dispatch to the Power Station Site in the extremely unlikely occurrence of an emergency situation. AECC - The AECC would provide back-up command and communications facilities that would be used to remotely manage an incident at the Power Station in the extremely unlikely event the primary facilities on the Power Station Site were untenable or if there was no access to the Power Station Site. ESL - The ESL would perform a normal operating function for environmental monitoring and, as such, would contain facilities such as monitoring equipment to conduct radiological surveys in the local area. The AECC and MEEG require critical infrastructure protection status and the necessary security will be achieved through a strengthened exterior construction of stonewalling, fencing and retaining walls, combined with vegetation barriers. This would be supplemented with closed circuit television lighting and other security measures. The following changes are proposed following Stage Two Pre-Application Consultation: Table 3-1 Off-site Power Station Facilities: Main Changes Off-site Power Station Facilities: Main changes The AECC, MEEG and ESL facilities would be combined onto a single site at Llanfaethlu. The facilities are proposed to be located on the current bus depot site, where only the MEEG was previously proposed. Page 57

68 Off-site Power Station Facilities: Main changes The AECC and ESL facilities are no longer proposed to be located on the greenfield site at Cefn Coch, or the alternative site at Cylch y Garn school (the Llanrhyddlad site). The Cefn Coch site would still be used temporarily as a construction compound for the On-line Highways Improvements to store machinery and materials, but will thereafter be returned to a grassed area. It was previously proposed to combine the ESL and AECC facilities into a single building. It is now proposed to combine the MEEG and AECC facilities into a single building, with the ESL located in a separate building on the Llanfaethlu site. The combined MEEG and AECC building remains approximately the same size as the previously proposed stand-alone MEEG building. The proposed Light Vehicle Storage Building is no longer required. Compared with the previous combined ESL and AECC building, the stand-alone ESL building would reduce by approximately 3 metres in height, 2 metres in width and 26 metres in length. The effect of combining the facilities onto a single site is therefore to reduce the overall volume of built development necessary. Previously proposed facilities on the Llanfaethlu site would now be shared between the MEEG, AECC and ESL, rather than one for each site. These facilities continue to include items such as a small sewage treatment unit, access and delivery areas, underground fuel tank and ancillary plant/buildings. Overspill parking is now located to the south of the site and provides sufficient space for 50 vehicles at any one time, for use mainly during training or in the extremely unlikely event of an incident. The site area has increased to accommodate this change. There would be an operational workforce of approximately three staff at the ESL on a regular basis. The MEEG and the AECC would not usually be staffed. Should there be an incident or training however, there could be a combined workforce of approximately 85 working at the MEEG and AECC. During the peak construction period, up to approximately 100 vehicles would be arriving and approximately 100 vehicles would be departing the site per day (of which less than 25 of these vehicles would be HGVs). This substantial reduction from 500 vehicle movements at the previous consultation has resulted from the consolidation of the Off-site Power Station Facilities onto a single site. The total number of vehicle movements per day during the operational stage is approximately five vehicles arriving and five vehicles departing per day. This figure will increase during an incident or training. The construction period is expected to be between 2020 and The facilities would then be operational until the Power Station is decommissioned. Page 58

69 3.2 Stage Two Pre-Application Consultation feedback Some concern was expressed at the greenfield status of the land at Cefn Coch and the availability of the Llanrhyddlad site, together with the potential environmental impacts of development on both sites. Consultation feedback is summarised further in appendix A. The general support for the redevelopment of the brownfield land at the Llanfaethlu site has encouraged Horizon to review the manner in which the three Off-site Power Station Facilities can be accommodated and has informed the consolidation of the three elements onto the single site to make better use of the available land. 3.3 Site location A plan showing the location of the Llanfaethlu site is shown on figure 3-1. Figure 3-1 MEEG, AECC and ESL: indicative location Page 59

70 3.4 Emerging scheme design The preferred approach to the landscaping, layout, access, scale and appearance of the development is set out below. Details will be further progressed following this consultation and included within the final development proposals, as part of the DCO application. The permanent ESL building would provide a strong frontage to the A5025 and provide increased screening to the combined MEEG and AECC building located behind, compared with the current development where the bus depot is clearly visible from the highway. The layout continues to allow for a HGV to turn without reversing. Vehicles would enter and leave the site in forward gear. The combined MEEG and AECC building is in approximately the same location as the current bus garage and the previously proposed MEEG building. Portable office pods, potential container storage and external plant are in approximately the same area as at the Stage Two Pre-Application Consultation. The overarching approach to landscaping and boundary treatments has not changed since the Stage Two Pre-Application Consultation and consists of a combination of stone walling and planting designed to reflect the surrounding plant species, density and pattern. The landscaping and boundary treatment objectives are to: integrate the site into the surrounding landscape; and provide a secure boundary for the site incorporating weld mesh fencing in association with the design of the buildings. The fence would be located behind the planting and on the perimeter of the hard-standing area. Page 60

71 Figure 3-2 Off-site Power Station Facilities indicative masterplan Further details of the proposed dimensions of specific buildings and structures are set out in table 3-2 below. The dimensions shown are Horizon s current best understanding of the likely dimensions and further details on the approach to flexibility is set out in chapter 1. Table 3-2 Off-site Power Station Facilities: indicative scale Indicative building dimensions Building (height x width x length) Combined MEEG/AECC building ESL building Indicative appearance 13m x 23m x 53m 8m x 18m x 30m The buildings on the site would be permanent given their requirement to be available for the lifespan of the Power Station itself. The final proposed design will therefore need to be developed to ensure that it responds to local context, recognising that the development will be a feature within the landscape for many years to come. Page 61

72 A restricted natural palette would continue to be adopted for the buildings on-site, helping to link the buildings visually, and be unimposing within their surroundings. An indicative view of how the Off-site Power Station Facilities could look from the A5025 is shown in figure 3-3 below. Figure 3-3 Off-site Power Station Facilities: indicative view from A5025 The buildings will be screened as far as possible and have been orientated to reduce their effect on the surrounding areas as far as practicable within operational requirements. An aerial sketch of how the Off-site Power Station Facilities could look in context with the surrounding area is shown in figure 3-4 below. Figure 3-4 Off-site Power Station Facilities: aerial sketch Page 62

73 Other key information During normal operation of the Power Station, the AECC would be expected to be in use only occasionally, for example, for an annual incident exercise. The ESL would have a day to day role for routine sampling (normal working hours only). Only in an incident would both the AECC and ESL be operational 24 hours a day. During an incident, staff at the MEEG would be working 24 hours per day, seven days per week for the duration of the incident. At present, it is assumed that the MEEG, AECC and ESL buildings would be decommissioned and removed from the site around the same time as decommissioning of the Power Station commences at the end of its operational life. Any alternative proposals for use of the building or the site beyond this period would need to be considered and determined as part of a future planning application at that time. 3.5 Preliminary Environmental Information The PEI tables 3-3 and 3-4 presented below consider key likely changes in the Project that in some instances lead to a change in environmental effects from that reported in the Stage Two Pre-Application Consultation PEI Report. The first table considers the construction phase and the second table the operational phase. In each case, a precautionary approach has been taken and effects are considered on a worst case basis. The first column of each table sets out the relevant environmental receptor involved and the change to the activity affecting that receptor since the Stage Two Pre-Application Consultation. The second column provides the assessment of the change of environmental effect since the Stage Two Pre-Application Consultation. The third column provides the preliminary conclusion on the likely residual environmental effect, following the Project changes. For details of environmental effects that have not changed since the Stage Two Pre-Application Consultation, please see tables B18.1 and B18.3 to B18.5 of the Stage Two Pre-Application Consultation PEI Report. Table 3-3 Preliminary Environmental Information: Off-site Power Station Facilities Construction Receptor and change to activity since Stage Two Pre-Application Consultation Traffic and Transport Receptor: Road users. Stage Two: The MEEG, AECC and ESL were proposed to be located on two separate Change of environmental effect since Stage Two Pre- Application Consultation This was anticipated to be a not significant effect in Stage Two at the Llanfaethlu site. This was anticipated to be a not significant effect in Stage Preliminary environmental information anticipated residual effect This is still likely to be a not significant effect at the Llanfaethlu site. There will no longer Page 63

74 Receptor and change to activity since Stage Two Pre-Application Consultation sites: the MEEG being located at Llanfaethlu; and the AECC/ESL site proposed either at Cefn Coch or Llanrhyddlad. What has changed: The MEEG, AECC and ESL are now proposed to be located on a single site at Llanfaethlu. This means construction traffic will be associated with a single site. Change of environmental effect since Stage Two Pre- Application Consultation Two at the Cefn Coch site. This was anticipated to be a not significant effect in Stage Two at the Llanrhyddlad site. The total construction traffic associated with the development of these facilities is unlikely to change significantly. While there will be greater localised construction traffic at the Llanfaethlu site, this will be for a temporary period and is not expected to lead to a significant effect. Mitigation to control construction traffic will be applied. During Stage Two it was estimated that the Annual Average Daily Traffic flows during the construction of the MEEG at the Llanfaethlu site would be approximately 140 vehicles per day (e.g. 70 vehicles in and 70 vehicles out) although for one month during the peak of construction this would rise to approximately 270 vehicles a day (i.e. 135 vehicles in and 135 vehicles out). For the AECC/ESL site at Cefn Coch the Average Annual Daily Traffic Flows were modelled to be 270 vehicles per day (135 vehicles in and 135 vehicles out). Also in Stage Two, the proposed AECC/ESL building at Cefn Coch, or Llanrhyddlad, assumed up to 360 vehicles Preliminary environmental information anticipated residual effect be effects at the Cefn Coch site or the alternative Llanrhyddlad site. Page 64

75 Receptor and change to activity since Stage Two Pre-Application Consultation Noise and Vibration Receptor: Residential properties, Llanfaethlu community (including new school), PRoW community, land within Ynys Mon/Anglesey AONB. Stage Two: The MEEG, AECC and ESL were proposed to be located on two separate sites: the MEEG being located at Llanfaethlu; and the AECC/ESL site proposed either at Cefn Coch or Llanrhyddlad. What has changed: The MEEG, AECC and ESL are now proposed to be located on a single site at Llanfaethlu. This means all construction noise will occur Change of environmental effect since Stage Two Pre- Application Consultation per day at peak construction (i.e. 180 vehicles in and 180 vehicles out) for the AECC/ESL. The construction numbers for traffic flows at the combined site for all buildings during the peak construction period would be 200 vehicles per day (100 vehicles in and 100 vehicles out). Although the number of vehicles during the construction phase has reduced due to the consolidation of the sites which leads to efficiencies, the change in effect is not deemed material. This was anticipated to be a negligible effect in Stage Two at the Llanfaethlu site. This was anticipated to be a not significant effect in Stage Two at the Cefn Coch site. This was anticipated to be a not significant effect in Stage Two at the Llanrhyddlad site. During Stage Two, the type and number of plant and equipment required to assess the preliminary effects for noise and vibration were not available and therefore significant effects could not be discounted. The merger of the three facilities onto one location may result in additional Preliminary environmental information anticipated residual effect This is still likely to be a negligible effect at the Llanfaethlu site. There will no longer be effects at the Cefn Coch site or the alternative Llanrhyddlad site. Page 65

76 Receptor and change to activity since Stage Two Pre-Application Consultation Change of environmental effect since Stage Two Pre- Application Consultation on one site. construction noise and vibration due to larger scale buildings and facilities. However, the good practice mitigation measures which will be followed mean that there will be no additional significant effects. The receptor groups potentially affected and mitigation measures would be similar to those described at Stage Two. Noise modelling is continuing, to confirm effects. No noise or vibration effects from construction of Off-site Power Station Facilities will now occur at Cefn Coch or Llanrhyddlad. Air Quality Receptors: receptors, receptors. Stage Two: Human ecological The MEEG, AECC and ESL were proposed to be located on two separate sites: the MEEG being located at Llanfaethlu; and the AECC/ESL site proposed either at Cefn Coch or Llanrhyddlad. What has changed: The MEEG, AECC and ESL are now proposed to be located on a single site at Llanfaethlu. This means all construction effects on air quality will occur on one site. This was anticipated to be a negligible effect in Stage Two at the Llanfaethlu site. This was anticipated to be a not significant effect in Stage Two at the Cefn Coch site. This was anticipated to be a not significant effect in Stage Two at the Llanrhyddlad site. The merger of the three facilities onto one location is not expected to result in additional significant effects. Mitigation to control dust emissions would continue to be applied. No air quality effects from construction of Off-site Power Station Facilities will now occur at Cefn Coch or Preliminary environmental information anticipated residual effect This is still likely to be a negligible effect at the Llanfaethlu site. There will no longer be effects at the Cefn Coch site or the alternative Llanrhyddlad site. Page 66

77 Receptor and change to activity since Stage Two Pre-Application Consultation Soils and Geology Receptor: BMV soil (Grades 1-3a), Grade 3b soil. Stage Two: The MEEG, AECC and ESL were proposed to be located on two separate sites: the MEEG being located at Llanfaethlu; and the AECC/ESL site proposed either at Cefn Coch or Llanrhyddlad. For construction of each facility, it was anticipated that there was likely to be a degradation of soil quality associated with topsoil strip, storage and re-use, which would be mitigated through a soil management strategy and soil management plan. What has changed: The MEEG, AECC and ESL are now proposed to be located on a single site at Llanfaethlu. The co-location of the AECC/ESL to the site at Llanfaethlu means that the greenfield site at Cefn Coch will no longer be used for permanent development (and nor would the site at Llanrhyddlad). Change of environmental effect since Stage Two Pre- Application Consultation Llanrhyddlad. This was anticipated to be a minor adverse in Stage Two at the Llanfaethlu site. This was anticipated to be a major adverse effect in Stage Two at the Cefn Coch site. This was anticipated to be a not significant effect in Stage Two at the Llanrhyddlad site An Agricultural Land Classification survey for the site at Cefn Coch determined that the soils were classified as Subgrade 3a, good quality soils, which suggested the Cefn Coch site should be considered as BMV land. Neither the Llanfaethlu site and the Llanrhyddlad site are Grade 3b or have BMV soil. The co-location of the MEEG, AECC and ESL may result in increased hardstanding on the Llanfaethlu site, which would affect a greater area of soil. Balanced against this is the co-location of the facilities on to one site, removing the potential for locating the AECC/ESL from a greenfield site with BMV soils (at Cefn Coch). No effects on soil from construction of Off-site Power Station Facilities will now occur at Cefn Coch or Llanrhyddlad. Preliminary environmental information anticipated residual effect This is still likely to result in a minor adverse effect at the Llanfaethlu site. There will no longer be effects at the Cefn Coch site or the alternative Llanrhyddlad site. Page 67

78 Receptor and change to activity since Stage Two Pre-Application Consultation Receptors: Human receptors, Afon Llanrhyddlad tributary, secondary B aquifer in bedrock. Stage Two: The MEEG, AECC and ESL were proposed to be located on two separate sites: the MEEG being located at Llanfaethlu; and the AECC/ESL site proposed either at Cefn Coch or Llanrhyddlad. What has changed: The MEEG, AECC and ESL are now proposed to be located on a single site at Llanfaethlu. This means all construction effects on ground contamination will occur on one site. Change of environmental effect since Stage Two Pre- Application Consultation This was anticipated to be a moderate beneficial effect in Stage Two at the Llanfaethlu site. This was anticipated to be a not significant effect in Stage Two at the Cefn Coch site. This was anticipated to be a not significant effect in Stage Two at the Llanrhyddlad site. Some existing contamination is anticipated to be present at the Llanfaethlu site due to the use of the site as a garage/depot. A ground investigation survey to confirm conditions would be completed prior to construction to inform remediation. The remediation of contamination would remove potential pollutant linkages to a number of receptors, creating beneficial effects. This effect has been further evaluated and it is considered that given that the existing land contamination conditions are currently unknown (as a ground investigation is yet to be undertaken), beneficial effects cannot be assessed for potential reductions in risks to receptors after remediation. However, the extent of any contamination will continue to be evaluated and remediated. This assessment is not affected by the location of the facilities on a single site Preliminary environmental information anticipated residual effect This is still likely to be a moderate beneficial effect at the Llanfaethlu site. There will no longer be effects at the Cefn Coch site or the alternative Llanrhyddlad site. Page 68

79 Receptor and change to activity since Stage Two Pre-Application Consultation Change of environmental effect since Stage Two Pre- Application Consultation At the Cefn Coch and the Llanrhyddlad site significant contamination was not expected to be encountered. However, a ground investigation was proposed to confirm these conclusions. Effects to the groundwater and surface receptor (tributaries and secondary B aquifer in bedrock) were proposed to be mitigated through adherence of Good Practice Guidelines, but not formally assessed. Preliminary environmental information anticipated residual effect Terrestrial and Freshwater Ecology Receptors: Hedgerows, nesting birds, bats, water vole. Stage Two: The MEEG, AECC and ESL were proposed to be located on two separate sites: the MEEG being located at Llanfaethlu; and the AECC/ESL site proposed either at Cefn Coch or Llanrhyddlad. What has changed: The MEEG, AECC and ESL are now proposed to be located on a single site at Llanfaethlu. This means all No effects on ground contamination from construction of Off-site Power Station Facilities will now occur at Cefn Coch or Llanrhyddlad. This was anticipated to be a minor adverse in Stage Two at the Llanfaethlu site. This was anticipated to be a not significant effect in Stage Two at the Cefn Coch site. This was anticipated to be a not significant effect in Stage Two at the Llanrhyddlad site Habitat loss and potential species disturbance were identified at both the Llanfaethlu, Cefn Coch and Llanrhyddlad. Mitigation measures include retention and protection of all ditches within the Llanfaethlu site, and buffer zones around This is still likely to be a minor adverse effect at the Llanfaethlu site. There will no longer be effects at the Cefn Coch site or the alternative Llanrhyddlad site. Page 69

80 Receptor and change to activity since Stage Two Pre-Application Consultation construction effects on ecology from construction of Off-site Power Station Facilities will occur on one site. Landscape and Visual Receptors: Recreational users of local PRoW, the Anglesey AONB (including public footpaths), the Anglesey SLA, Mynedd Mechell SLA, Landscape Character Area (LCA) 5, LANDMAP Visual and Sensory Aspect Area Stage Two: The MEEG, AECC and ESL were proposed to be located on two separate Change of environmental effect since Stage Two Pre- Application Consultation watercourses; appropriately designed drainage system; retention of boundary features; and landscape planting of native woodland and grassland. Although additional hardstanding will be present on the Llanfaethlu site (meaning that there will be less capacity to provide mitigation within the site (e.g. the extent of landscape planting would be less and the opportunity to retain and protect ditches and watercourses may reduce)), potential additional effects from combining the facilities at the Llanfaethlu site are not anticipated to be significant. No effects on ecological receptors from construction of Off-site Power Station Facilities will now occur at Cefn Coch or Llanrhyddlad. This was anticipated to be a moderate to major adverse effect in Stage Two at the Llanfaethlu site. This was anticipated to be a minor to moderate adverse effect in Stage Two at the Cefn Coch site. This was anticipated to be a not significant effect in Stage Two at the Llanrhyddlad site. The Llanfaethlu site is located within the Anglesey SLA and Preliminary environmental information anticipated residual effect This is still likely to be a moderate to major adverse effect. There will no longer be effects at the Cefn Coch site or the alternative Llanrhyddlad site. Page 70

81 Receptor and change to activity since Stage Two Pre-Application Consultation sites: the MEEG being located at Llanfaethlu; and the AECC/ESL site proposed either at Cefn Coch or Llanrhyddlad. What has changed: MEEG, AECC and ESL are now proposed to be located on a single site at Llanfaethlu. This means construction effects on Landscape and visual receptors will arise only from one site. Archaeology and Cultural Heritage Receptors: Church of St. Maethlu (Grade 2* Listed Building), disused lime kiln Carreglwyd (Grade 2 Listed Building) and the Carreglwyd Park and Garden (Grade 2* Registered Park and Garden), Penn-yr-Orsedd Standing Stones. Stage Two: The MEEG, AECC and ESL were proposed to be located on two separate sites: the MEEG being located at Llanfaethlu; and the AECC/ESL site proposed either at Cefn Coch or Llanrhyddlad Change of environmental effect since Stage Two Pre- Application Consultation immediately to the boundary of the Anglesey AONB and potentially visible from a variety of public footpaths. Most of the effects are short term in duration. However some activities such as the removal of trees may be more long term. Overall however, adverse environmental effects identified at Stage Two are not expected to be materially different due to the co-location of the MEEG, AECC and ESL on the same site. No landscape and visual effects from construction of Off-site Power Station Facilities will now occur at Cefn Coch or Llanrhyddlad. This was anticipated to be a negligible effect in Stage Two at the Llanfaethlu site. This was anticipated to be a not significant effect in Stage Two for known archaeological remains at the Cefn Coch site. This was anticipated to be a not significant effect in Stage Two for known archaeological remains at the Llanrhyddlad site. The additional construction required as a result of the AECC and ESL moving to Llanfaethlu is not anticipated to have a significant effect on the setting of the identified receptors. There is potential for the removal of unknown Preliminary environmental information anticipated residual effect This is still likely to be a negligible effect. There will no longer be effects at the Cefn Coch site or the alternative Llanrhyddlad site. Page 71

82 Receptor and change to activity since Stage Two Pre-Application Consultation What s changed: MEEG, AECC and ESL are now proposed to be located on a single site at Llanfaethlu. This means all construction effects on archaeology and cultural heritage will occur on one site. Change of environmental effect since Stage Two Pre- Application Consultation archaeological remains through the construction of the facilities on the Llanfaethlu site, however, after application of good practice guidance, no additional significant effects on unknown archaeological remains are predicted. No effects on archaeology and cultural heritage from construction of Off-site Power Station Facilities will now occur at Cefn Coch or Llanrhyddlad. Preliminary environmental information anticipated residual effect Table 3-4 Preliminary Environmental Information: Off-site Power Station Facilities Operation Receptor and change to activity since Stage Two Pre-Application Consultation Groundwater and Surface Water Receptors: Receiving watercourses and drainage systems. Stage Two: The MEEG, AECC and ESL were proposed to be located on two separate sites: the MEEG being located at Llanfaethlu; and the AECC/ESL sites proposed either at Cefn Coch or Llanrhyddlad. What has changed: The MEEG, AECC and ESL are now proposed to be located on a single site at Llanfaethlu, prompting a revised design. Change of environmental effect since Stage Two Pre- Application Consultation This was not anticipated to be a significant effect in Stage Two at the Llanfaethlu site. This was not anticipated to be a significant effect in Stage Two at the Cefn Coch site. This was not anticipated to be a significant effect in Stage Two at the Llanrhyddlad site. At earlier stages of the site selection process Horizon looked at screening out sites that were at risk of flooding from rivers. Further design work has been undertaken Preliminary environmental information anticipated residual effect This is likely to be a minor adverse effect at the Llanfaethlu site. There will no longer be effects at the Cefn Coch or Llanrhyddlad sites. Page 72

83 Receptor and change to activity since Stage Two Pre-Application Consultation Landscape and Visual Receptors: Anglesey-wide SLA LANDCOVER; Landscape pattern; LCA 5: North west Anglesey; LANDMAP; Recreational users of local PRoW to North; Recreational users of local PRoW to South; Recreational users of Anglesey AONB (incl. public footpaths). Stage Two: The MEEG, AECC and ESL were proposed to be located on two separate sites: the MEEG being located at Llanfaethlu; and the AECC/ESL site proposed either at Cefn Coch or Llanrhyddlad. What has changed: The MEEG, AECC and ESL are now proposed to be located on a single site at Llanfaethlu, prompting a revised landscape design. Change of environmental effect since Stage Two Pre- Application Consultation since Stage Two and identified the Llanfaethlu site is at risk from surface water flooding but this is likely to be mitigatable through drainage design. There will no longer be any effects as a result of the AECC/ESL on the Cefn Coch site, or on the alternative Llanrhyddlad site. This was not anticipated to be a significant effect in Stage Two at the Llanfaethlu site. This was anticipated to be a minor to moderate effect in Stage Two at the Cefn Coch site. This was anticipated to be a significant effect in Stage Two at the Llanrhyddlad site. While the co-location of the MEEG, AECC and ESL on the Llanfaethlu site has changed from that in Stage Two, Horizon is continuing to deliver an appropriate landscape setting for the facilities on the Llanfaethlu site. There will no longer be any effects as a result of the AECC/ESL at the Cefn Coch site, or the alternative Llanrhyddlad site. Preliminary environmental information anticipated residual effect This is likely to be a minor adverse effect at the Llanfaethlu site. There will no longer be effects at the Cefn Coch or Llanrhyddlad sites. Page 73

84 No changes to the intra-development effects or cumulative effects as recorded in the Stage Two PEI Report are anticipated as a result of these changes. More information on Horizon s approach to assessing such effects is set out in Appendix C to this document. 3.6 Proposed mitigation As shown in the tables 3-3 and 3-4 above, many of the changes listed in this chapter do not materially change the effects of the Off-site Power Station Facilities on local receptors, including communities. Horizon is preparing a comprehensive package of additional mitigation to reduce effects where possible. Details of project-wide mitigation measures are set out in chapter 7 and the main mitigation measures are set out below: strong boundary treatments, including retained woodland and hedgerow planting; use of good construction practices, including reduced hours of working and dust suppression; and removal of contaminated land where necessary. Page 74

85 3.7 Scope to influence the changes Horizon welcomes your views on its revised approach to the Off-site Power Station Facilities: We continue to look for ways to reduce the impact of our Project and one way is to reduce the total number of development sites. We are now proposing to put the essential Off-site Power Station Facilities (these being the Alternative Emergency Control Centre, Environmental Survey Laboratory and the Mobile Emergency Equipment Garage) all together on the same site at Llanfaethlu (previously identified for just the Mobile Emergency Equipment Garage). This also means we no longer need the site at Cefn Coch (or the alternate Llanrhyddlad school site). Do you prefer the new proposals? Yes (please give reasons): No (please give reasons): Unsure (please give reasons):... No preference (please give reasons):... If the site at Llanfaethlu is developed for Off-site Power Station Facilities, what do you think should be our priorities for reducing any potential effects on local residents? (please rank 1 (most important to you) to 6 (least important to you)) Controlling traffic movements Reducing noise impacts Quality of landscaping Layout of the car parking Design of the buildings Other Page 75

86 4 Workforce, Employment and Skills Training This chapter provides an update following the Stage Two Pre-Application Consultation on the types of jobs that will be generated by the Wylfa Newydd Project and how Horizon proposes to invest in skills training and maximise opportunities in the local, regional and national supply chain. Updated projections on the number of workers required to construct and operate the Project are also provided below. 4.2 Stage Two Pre-Application Consultation feedback In considering the Stage Two Pre-Application Consultation there was general acknowledgement that the Project could be a catalyst for economic investment, employment prospects and growth on Anglesey. The need to secure local opportunities is clearly an important issue, as is the potential to divert existing residents from the local job market. Stakeholders and other organisations made a range of other comments in relation to this topic including asking for more engagement and information on specific plans and targets, as well as monitoring and mitigation measures in relation to the effects of the Project on the local economy and lessons learned from the Existing Power Station. Responses in respect of skills and workforce were varied and proposed a number of specific schemes, strategies and opportunities. The key opportunities that the Project could provide were identified as being the accessibility of jobs and training for local people and the continued support and engagement with local schools and colleges. In association with this was the need to provide the monitoring and publication of employment targets and data; investing in training facilities and quality assurance requirements (such as a nuclear passport); and investing in training and skills for sectors likely to feel workforce displacement effects. Since the Stage Two Pre-Application Consultation, Horizon has been working with IACC and Welsh Government to further develop its strategies on jobs, education, skills and the supply chain. Horizon has also continued to work closely with local schools, including through the apprenticeships scheme, to maximise the ability of local children to access future opportunities created by the Project. A further summary of feedback received is included at appendix A. 4.3 Construction workforce profile Since the Stage Two Pre-Application Consultation, Horizon has been reviewing and revising its construction plans. Following the Project changes, and with a greater understanding of construction methodologies, Horizon now estimates that the peak number of workers during the construction period will peak at approximately 8,500 (reduced from the 10,700 assessed in the Stage Two Pre-Application Consultation). To ensure Horizon Page 76

87 mitigates against any unforeseen increases in worker numbers, Horizon is assuming a peak of 9,000 workers for its assessment work. The exception to this is in assessments where the lower number of workers represents the worst case scenario, in which case the lower figure is being assessed. Figure 4-1 illustrates the projected peak workforce requirements for the Wylfa Newydd Project between 2017 and 2027, with the assumed peak of 9,000 workers and break down between construction and operational staff. Figure 4-1 Workforce profile Page 77

88 Table 4-1 sets out the workforce requirements at the projected peak in Table 4-1 Project peak construction period workforce Approximate staff Job type requirements (peak) Peak workforce requirement by Project component Power Station Site (construction) 8,050 Off-site Power Station Facilities (construction) 45 Power Station (operational) 425 Site Campus Facilities Management (operational) 425 Park and Ride Facilities Management (operational) 20 Logistics Centre Facilities Management (operational) 35 TOTAL 9,000 Peak workforce requirement by job type Site services, clerical and security 500 Managerial and supervisory 1,975 Civils technicians 3,050 Mechanical and electrical technicians 2,670 Power station operational staff 425 Off-site services, security and clerical staff 380 TOTAL 9,000 Page 78

89 Table 4-2 identifies the typical job types that will be in the greatest demand at the peak of construction in Details of how Horizon is investing in skills and training are set out later in this chapter. Table 4-2 Peak construction workforce: trade breakdown Job type Approximate staff requirements (%) Labourer 21% Electrician 17% Pipe Fitter 12% Scaffolder 8% Fitter 7% Carpenter 6% Rigger 5% Minor Plant Operator 4% Steel Fixer 4% Major Plant Operator 2% Other 14% TOTAL 100% Page 79

90 When the Power Station becomes operational, Horizon continues to expect to require a workforce of around 850 workers, with up to 1,000 additional workers to carry out routine maintenance during annual outage periods. Table 4-3 sets out the approximate operational workforce requirements. Table 4-3 Operational workforce requirements Job type Approximate staff requirements Workforce requirement by specialism Operations: Control room operators, field operators 210 Engineering: Mechanical, electrical, control and instrumentation (nuclear) 210 Maintenance: Control and instrumentation (mechanical) 215 Business Support: Human resources, finance, procurement, administration, stores Technical Support: Health physics, chemistry, reactor physics, environmental science, industrial safety, emergency preparedness Training: Training instructors, simulator instructors, administration TOTAL 850 Workforce requirement by qualification level Degree level (or equivalent) 280 Apprenticeship qualification (or equivalent) 285 Other requirements (e.g. school leavers) 285 TOTAL 850 Workforce requirement by employer type Horizon operational staff 600 Contractor operational staff 250 TOTAL 850 Page 80

91 The main changes to the workforce profile since the Stage Two Pre- Application Consultation are summarised in table 4-4 below. Table 4-4 Workforce profile: Main Changes Workforce profile: Main Changes Since the Stage Two Pre-Application Consultation Peak workforce requirements have been reduced from approximately 10,700 to approximately 8,500. To ensure contingency against unforeseen circumstances, Horizon is assuming a peak of 9,000 workers for most of its assessment work where this represents the worst case scenario from an environmental perspective. Peak workforce requirements are now projected to be in 2023 rather than Based on experience from the Existing Power Station, during the operational stage of the Project, Horizon is now aiming for up to 85% of employees being home-based workers living locally. Previously Horizon estimated that this proportion would be 45%. Further details on the benefits of this on Welsh language and culture are set out in chapter Training and skills investment Construction training and skills investment Horizon expects that its supply chain will generate apprenticeships in construction, built environment and related trades. Apprenticeships would typically be at levels 2 and 3, and learners could progress further. Given the Project scale and duration, apprenticeships and trainee positions will be available with the supply chain and with Horizon throughout the construction phase, and subsequently as part of the skills pipeline for the operational Power Station as set out in more detail below. Employment and Skills Service Plans to establish an Employment and Skills Service were set out in the Stage Two Pre-Application Consultation Main Consultation Document. Horizon will shortly be commencing a trial of the Employment and Skills Service (working with the Department of Works and Pensions, Grŵp Llandrillo Menai, IACC, Welsh Government, North Wales Economic Ambition Board), with the aim of centrally locating all Project job vacancies and identifying skills gaps and provision, as part of our recruitment plan. Jobs and Skills Strategy The Jobs and Skills Strategy will set out how Horizon will work with the Welsh Government and North Wales Economic Ambition Board members to fund and facilitate the timely delivery of additional training to meet the specific skills needs identified for the Project. This will promote and enable Page 81

92 training in advance of potential employment to ensure local employment opportunities are maximised local opportunities. Operational training and skills investment Horizon is investing locally to encourage young people in schools and college to take an interest in and choose Science, Technology, Engineering and Maths (STEM) subjects. Horizon has invested and will continue to invest in the local schools and Colleges to develop the skills and training needs we require as a company for the construction and operation phases of the Project. There are incredibly exciting opportunities for young local people to be part of the Wylfa Newydd future workforce. An update on the following details is provided below: Technical Apprenticeship Scheme; Graduate Development Programme; other routes to employment; and Training and Simulator Building. Technical Apprenticeship Scheme In partnership with Grŵp Llandrillo Menai, Horizon launched its Technical Apprenticeship Scheme in 2016 with an initial intake of 10 apprentices and is in the process of recruiting a further 12 apprentices for the academic year 2017/18. This three-year apprenticeship programme represents the start of Horizon s long-term commitment to recruiting driven, talented local people to work on the Wylfa Newydd Project. Horizon is also working with Grŵp Llandrillo Menai to secure suitable level 3 and level 4 apprenticeships in related fields for Wylfa Newydd and this work will help to secure high quality provision not just for Horizon but also for other businesses in the local area. Since 2012, Horizon has provided 360,000 of funding towards Cwmni Prentis Menai, aimed at providing employment and apprenticeships for young people before the Horizon Technical Apprenticeship scheme was operational. Horizon has also invited lecturers from the Grŵp to sit nuclear training courses and attend nuclear events to help contextualise the project. In 2016, Horizon contributed 1 million towards the development and relocation of the Engineering provision at Grŵp Llandrillo Menai from Bangor to Llangefni as well as providing advice and assistance in the specification of the facility. This early investment in skills is a crucial part of our strategy to upskill young people in the local area and prepare for the operation of Wylfa Newydd. Horizon has been instrumental in the involvement of the wider Hitachi Group, which has seen the Heavy Plant Centre concept at Coleg Menai revised and to which Hitachi Construction Machinery contributes earth moving equipment and construction machinery for use in the centre. In late 2016, Hitachi Power Tools donated 25,000 of power tools to the Grŵp which are in use by Page 82

93 students. Horizon sees the development of these relationships with the Grŵp and other stakeholders as very important. Horizon is looking at the feasibility of introducing degree apprenticeships in conjunction with Grŵp Llandrillo Menai and the University of Bangor to provide another route for local young people to enter the workforce at Wylfa Newydd. Graduate Development Programme Horizon operates a Graduate Development Programme from our corporate headquarters in Gloucester across the business. The programme aims to recruit and develop young talent to deploy across Horizon s sites. Horizon has Memoranda of Understanding with the University of Bangor and maintains contact with Bangor and Wrexham Glyndŵr universities in North Wales along with several others across England. Horizon is working with the University of Bangor to add a nuclear context to several of their existing courses. Other routes to employment In addition to the entry routes mentioned above, Horizon is looking at several other routes to a career at Wylfa Newydd. This includes, but is not limited to: those looking to change their career direction; those undergoing resettlement from HM Armed Forces; and, the long-term unemployed. Horizon is working with North Wales Economic Ambition Board and the Department of Work and Pensions to develop these routes further. Training and Simulator Building As part of Horizon s plans to provide a skilled workforce for the operation of Wylfa Newydd, we are continuing to propose a Training and Simulator Building within the Power Station Site adjacent to the A5025 and south of Tregele. The building was previously proposed to be located to the east of Tregele. The building will house full scope simulators, classrooms and teaching workshops to provide training to all people working at Wylfa Newydd. The facility needs to be up and running many years prior to commercial operation to ensure that the first crews are ready and qualified to take over operation of the plant at the appropriate time. Page 83

94 4.5 Education Engagement Strategy Horizon has set out a strategy that focuses on engaging with schools on Anglesey and across North Wales to increase awareness of the Project, to promote the importance of STEM subjects, key employability skills and to highlight the choices children must make in school to access relevant career paths through Further and Higher Education. Horizon is working with IACC, Grŵp Llandrillo Menai, Anglesey schools and key partners, such as North Wales Economic Ambition Board, North and Mid Wales Reaching Wider Partnership, Careers Wales and looking to develop partnership with Young Enterprise to inspire school children and enable future job opportunities at Wylfa Newydd. In addition, as part of Horizon s educational activities, it has three focused strands of work which it implements within all aspects of educational engagement, from Primary age all way through to Secondary and Further Education. Primary education engagement Horizon has recently launched its Primary Outreach Resource programme which has been developed in partnership with several Anglesey primary school teachers. Horizon has been visiting primary schools across Anglesey to deliver a unit of the resource, with over 320 Key Stage 2 pupils being engaged with Horizon in March The programme is being delivered in partnership with the Widening Access Programme, from Bangor University two days a week. Horizon will also offer training sessions for teachers to ensure that the resource is embedded in the school curriculum and are looking at working in partnership with IACC and GwE (the school effectiveness and improvement service for North Wales) to deliver this. The intention is to roll the outreach programme out across the wider North Wales region. Horizon is currently in discussions with Key Stage 1/Foundation Stage teachers with regards to how best Horizon can be of assistance in identifying key areas where Horizon can develop an interactive resource that would tackle gender-stereotyping from a young age. In working in partnership with two primary schools on the Island Horizon has further developed the Veg Batteries kits and has purchased 12 kits to be given to the primary schools, but to be kept at the respective local secondary school, on request from the primary school teachers. An additional 18 kits will be purchased for the three other catchment areas before September The recent developments with the kits will allow the same level of skills and enthusiasm linked to STEM to be transferred from primary to secondary schooling. Page 84

95 Secondary education engagement Horizon is currently working with physics teachers to develop and map lessons which will be based around the Power and Energy Kits that Horizon will be providing to every secondary school on the Island. In addition to this, Horizon will work to provide further examples and information that will complement and relate the kits to Wylfa Newydd. This will assist in increasing the practical sessions within lessons, allow pupils from as young as Year 8 to be inspired by practical work and using a kit which relates to the future opportunities on Anglesey, as well as showing them that STEM can be interesting and enjoyable. Following the success of last year s Work Insight Week, Horizon will be offering an opportunity at the Energy Centre, Coleg Menai, Llangefni for up to 28 young people (Years 11-13) from Anglesey and North Gwynedd to meet members of Horizon staff from a range of departments during July 2017 to gain a better understanding of the Project and future career opportunities. Horizon will also offer tailored sessions on aspects such as Preparing for an Interview and Preparing Presentations with the support from its HR Department, as well as a site visit. The week-long programme will also concentrate on the importance of key employability skills, with activities and sessions supporting this aspect. Horizon is continuing to support the Profi Programme, which works across the five secondary schools on the Island, as well as two secondary schools in Gwynedd. The programme works specifically with Year 12 students for 12 weeks, developing key employability skills and self-confidence. Horizon is currently working in partnership with the Key Stage 4 and Post 16 Welsh Baccalaureate co-ordinator at Ysgol David Hughes, Menai Bridge to design and develop challenges which will support specific aspects of the qualification. These in time will be presented to the examination board, WJEC, to be accredited before officially launching the resources. The resources will focus on key employability skills and allow Key Stage 4 pupils to research and learn more about Horizon and the role of nuclear in the lowcarbon industry. The provision will be widely available to all schools on Anglesey as well as the rest of Wales following accreditation and support from WJEC. Horizon continues to support and attend all Year 9 and Year 11 Option Events at the five Anglesey secondary schools, and attend with either former pupils who are now Horizon staff or apprentices where possible. Partnership working Horizon is continuing to fund the STEM Family Challenges which is delivered in partnership with the North and Mid Wales Reaching Wider Partnership which is based at Bangor University, with delivery in all Anglesey schools and selected Gwynedd schools. This is to raise awareness of the importance of STEM skills, and key employability skills with the pupils and their parents. Page 85

96 Horizon will further develop the programme to ensure continuity and development of the key employability skills. Horizon is working in partnership with Careers Wales and North Wales Economic Ambition Board, as well as up to eight other employers from Welsh Government key sectors to develop resources and video clips for schools which will support young people in preparing for the world of work. It will concentrate on topics including: how to write an effective curriculum vitae and how to prepare for an interview. This will be a Wales-wide project which will be in two phases, with the first phase being launched mid-september It will feature a short video clip which will emphasise employers needs and key messaging in regards to recruitment, celebrate the success of young people who have successfully used or developed their key employability skills to get to where they are, and will also feature their top tips on how to develop those skills further. The second part of the project will be completed by the end of March 2018, and will be the toolkit to ensure Horizon s potential future employees have the right skills and qualifications. This will also link into the Welsh Baccalaureate and Horizon will work in partnership with GwE to ensure it meets their needs. Horizon is currently investigating possibilities of working in partnership with Young Enterprise to pilot their Employability Masterclass workshops with the secondary schools on Anglesey. The workshops would be offered to Years 9 or 10 pupils to ensure that key employability skills and needs of future employees are developed. Horizon will have trained STEM Ambassadors who will be able to support educational events and sessions at both Wylfa Newydd and Horizon s offices in Gloucester. The training has been held during May 2017 at both sites. Horizon continues to develop educational resources for primary and secondary schools and has introduced a new education brand, Futures. The Building on our Futures programme will take a young person all the way from the primary sector to further and higher education, as it incorporates all aspects of our educational engagement. To support the development of Futures, Horizon has developed an education page on its website, which will house all the educational resources, signpost other relevant websites and offer careers-related information. 4.6 Maximising supply chain opportunities Horizon, working together with its Joint Venture partner Menter Newydd, is continuing to raise awareness of the Wylfa Newydd Project and the business development opportunities that it represents, with a focus on local (Anglesey) and regional (North Wales) businesses. Together, Horizon and Menter Newydd remain committed to the aim of spending 60% of the Project value in the UK throughout the construction stage of the Project. The Stage Two Pre-Application Consultation included Horizon s Supply Chain Charter, which is currently being reviewed to understand if it needs refinement following the Project changes set out in this document. The Page 86

97 principles, expectations and behaviours that underpin the charter have not changed and remain as follows: Principles: - to be open and transparent; - to support development of the supply chain; - to monitor performance; and - to allow sufficient time for the supply chain to react. Expectations - requirements shall be clear and standard conditions of contract shall be used; - fair payment terms will be adopted; - sensitive to local social, language and cultural surroundings; and - opportunities to use local suppliers would be maximised. Behaviours - a culture of safety; - a culture of learning; - open communication; and, - high standards of performance. Horizon is currently developing a Supply Chain Action Plan in conjunction with stakeholders to help realise the above. The plan is expected to include details of how: business opportunities would be shared with the supply chain; suppliers would register to join the supply chain, with an aim to provide a common approach that minimises time-spent and costs incurred, particularly for small and medium-sized businesses; different job types would be targeted locally, regionally and nationally. Horizon will work in partnership with stakeholders via a working group to identify the job types; the supply chain would be promoted and developed; a digital portal (such as Sell2Wales) might be employed; performance would be monitored and information shared across wider industries; the standard conditions of contract and fair payment terms might look; suitably qualified staff could increase the likelihood of continuous work tasks, using an Employment and Skills Service; and, local, regional and national supply chain steering groups would be formed. Menter Newydd is currently engaged with several UK-based companies and continues to register businesses via Early Constructor Engagement contracts. This has progressed from Hitachi-GE s three-year programme of construction studies with UK partners, as well as its assessment of UK manufacturing capabilities. Both programmes, as well as the volume of Page 87

98 supply chain work it generates, will continue and escalate as the project moves forward. There are currently more than 500 companies registered via ( of which around 20% are based in Wales. As is typical for a Project of this scale and complexity, Horizon will encourage its delivery partners to liaise directly with the supply chain. Currently several local companies are engaged on the Project across different specialities, including: public relations; photography; catering; construction, ecological and environmental management; facilities management and, waste management. An expanding programme of works is anticipated within the next 12 months and Horizon is continuing to engage with and support local suppliers to undertake this work. In 2016, approximately 55% of the total expenditure at the Power Station Site was directly or indirectly placed with the local and regional supply chain. This included the continuation of archaeological and ground investigation works together with ongoing surveys and site maintenance. Statutory works undertaken by National Grid and Scottish Power on behalf of Horizon also commenced last year to divert utilities and this work was completed using regional contractors. Jones Bros, a regionally-based company (Ruthin, Denbighshire), also completed the Horizon-funded Nanner Road Improvements via the IACC Highways Framework last year. Horizon is now continuing to work with key stakeholders to prepare for the next phase of works, by: undertaking an initial series of training workshops with suppliers by June 2017 to explain the opportunities and requirements of the supply chain, as well as setting out the practicalities of how to bid for work. These workshops are part of Horizon s Supply Chain Readiness Programme, covering topics including: introduction to nuclear manufacturing; triple bar training for nuclear manufacturing; estimating for winning nuclear contracts; exploring nuclear safety culture; and, people and process excellence; continuing to liaise with suppliers that have expressed an interest in joining the supply chain but are not yet fully registered; providing specialist input to briefings with recognised key industry and political stakeholders; attending, speaking, sponsoring and exhibiting at conferences, seminars and other relevant networking platforms, including activities programmed by the Anglesey Energy Island Programme and Welsh Government; commencing a trial of the Wylfa Newydd Employment and Skills Service in the near future; beginning preparations for a supply chain event in North Wales, to be held within the next 6-12 months; continuing to work collaboratively with agencies such as Construction Futures Wales, North Wales Business Council and the Confederation of British Industry North Wales, Federation of Small Businesses; and Page 88

99 continuing to work closely with Grŵp Llandrillo Menai (and Coleg Cambria on construction skills provision) as set out in this chapter. 4.7 Preliminary Environmental Information The PEI tables 4-5 and 4-6 presented below consider key likely changes in the Project that in some instances lead to a change in environmental effects from that reported in the Stage Two Pre-Application Consultation PEI Report. The first table considers the construction phase and the second table the operational phase. In each case, a precautionary approach has been taken and effects are considered on a worst case basis. The first column of each table sets out the relevant environmental receptor involved and the change to the activity affecting that receptor since the Stage Two Pre-Application Consultation. The second column provides the assessment of the change of environmental effect since the Stage Two Pre-Application Consultation. The third column provides the preliminary conclusion on the likely residual environmental effect, following the Project changes. For details of environmental effects that have not changed since the Stage Two Pre-Application Consultation, please see Volume B1 of the Stage Two Pre-Application Consultation PEI Report, in particular the tables entitled Effects during Construction and Effects during Operation. Table 4-5 Preliminary Environmental Information: Workforce during Construction Receptor and change to activity since Stage Two Pre-Application Consultation Socio-economic Receptor: Businesses Stage Two: Local Displacement of employment from local businesses to the Power Station. What has changed: Following optimisation, fewer workers are now anticipated, reduced from around 10,700 to 9,000. Change of environmental effect since Stage Two Pre- Application Consultation This was anticipated to be a minor adverse effect in Stage Two. In Stage Two it was assessed that current turnover rates in the nuclear relevant workforce within a reasonable commuting area are 9% (equivalent to 5,560 jobs). This is significantly less than the estimated 2,700 homebased workers, suggesting that the local economy can absorb the effect. Because there are fewer workers now required, any adverse effect will likely be Preliminary environmental information anticipated residual effect This is still likely to be a minor adverse effect. Page 89

100 Receptor and change to activity since Stage Two Pre-Application Consultation Receptor: Local economy Stage Two: The central case assessed in Stage Two was up to 10,720 workers accommodated off-site comprising 4,700 workers in campus style temporary workers accommodation, 3,320 workers in existing accommodation, and 2,700 home based workers. What has changed: Following optimisation, there is expected to be up to 4,000 workers in the Site Campus (located on-site) and approximately 5,000 workers located off-site (3,000 in existing accommodation, and 2,000 home based workers). Change of environmental effect since Stage Two Pre- Application Consultation reduced. This was anticipated to be a minor beneficial effect in Stage Two. Benefits to the local economy may reduce due to the number of workers now anticipated to be accommodated on-site in the Site Campus. However, this will also reduce the pressure on local services. Overall it is considered there will be no material change to the effects reported in Stage Two. Preliminary environmental information anticipated residual effect This is still likely to be a minor beneficial effect. Table 4-6 Preliminary Environmental Information: Workforce during Operation Receptor and change to activity since Stage Two Pre-Application Consultation Socio-economic Receptor: Employment on Anglesey Stage Two: Assessed local people filling 45% of operational jobs. Change of environmental effect since Stage Two Pre- Application Consultation This was anticipated to be a moderate beneficial effect in Stage Two. Following further information from experience at the Existing Power Station it is now anticipated that local Preliminary environmental information anticipated residual effect This is likely to be a major beneficial effect. However, in a worst case situation where the higher percentage is not Page 90

101 Receptor and change to activity since Stage Two Pre-Application Consultation What has changed: Assessing the potential for local people within a reasonable commuting area to fill up to 85% of operational jobs. Change of environmental effect since Stage Two Pre- Application Consultation people may fill a much higher percentage of operational positions and as such the likely beneficial effects will continue to be realised and maximised. Preliminary environmental information anticipated residual effect reached this would still be a moderate beneficial effect. No changes to the intra-development effects or cumulative effects as recorded in the Stage Two PEI Report are anticipated as a result of these changes. More information on Horizon s approach to assessing such effects is set out in appendix C to this document. Page 91

102 5 Accommodating the construction workers 5.1 Introduction Horizon is continuing to work with IACC, Gwynedd Council and the Welsh Government to refine its Construction Worker Accommodation Strategy (CWAS) for workers that will construct the Wylfa Newydd Project. This work is ongoing and this chapter provides an update on how the CWAS has progressed since the Stage Two Pre-Application Consultation. The CWAS seeks to ensure the Project takes a balanced approach to accommodating its workers, by seeking to avoid excess demand being placed on existing provision and other disruption to local communities, while also attracting a productive workforce. This balance will help to ensure that the Project is efficient and cost effective and can offer economic benefits to local accommodation providers utilising under-used capacity. A key part of Horizon s approach is the provision of temporary workers accommodation. This serves several key purposes: it will ensure excess demand is not placed on existing accommodation, businesses and communities; and, it will provide a type of accommodation that is both attractive to workers (including due to its location) and which is required for the efficient construction of the Project. As set out in chapters 2 and 4, Horizon has also been reviewing its approach to construction and the number and type of workers that will be required. It has also been working with IACC and Gwynedd Council, and the Welsh Government, to agree the amount of existing accommodation that workers can use. Both aspects have influenced the current proposals for Horizon s updated CWAS and further details are set out below. 5.2 Background to the approach for accommodating workers Horizon s three over-arching aims for its CWAS have not changed since the Stage Two Pre-Application Consultation and remain as follows: avoiding adverse effects on Anglesey s residents and accommodation markets; delivering Horizon s commercial and productivity requirements; and providing a positive legacy where possible and appropriate. Achieving these requires a balanced strategy that ensures an adequate supply of accommodation that is attractive and affordable for workers and minimises travel to site. However, Horizon understands from consultation and engagement with communities and local business that this can also provide the opportunity for local economic benefits from workers using existing accommodation where there is spare capacity. Horizon recognises Page 92

103 it needs to avoid displacing existing residents, or tourists during the peak season. Purpose-built accommodation is required to minimise travel and coordination with shift patterns, provide facilities and amenities for workers alongside their accommodation (e.g. catering or sports and leisure facilities) and to manage workers behaviour and their impacts on local communities. A certain amount of large-scale, purpose-built, accommodation is best suited to meeting these needs. It provides the type of accommodation workers will want at a scale and in a format that enables the delivery of associated services (e.g. room cleaning and managing changeover between workers) in a way regular houses cannot. Horizon aims to deliver its purpose-built accommodation flexibly so it can respond to temporary workers needs in terms of the amount and timing appropriately. Construction worker numbers The key driver of demand for accommodation is the number of workers at the peak of construction and how many of them are recruited from outside the local area. This peak will be the point at which demand is highest and therefore when demands on accommodation will be the greatest. The CWAS needs to be able to accommodate the numbers at this peak scenario. Since the Stage Two Pre-Application Consultation, Horizon has been reviewing and revising its construction plans. Chapter 4 explains that the peak number of workers has reduced from approximately 10,700 to approximately 8,500, but to ensure an appropriate level of contingency Horizon has developed its CWAS to accommodate up to 9,000 workers. Horizon has also reviewed the proportion of workers that it expects to recruit from the local area and so would not need temporary accommodation (called home-based workers). As set out in chapter 4 above, Horizon is committed to maximising the ability of local people to access jobs. However, to ensure an appropriate "worst case" assessment for housing workers to allow for contingencies, Horizon is taking a conservative estimate of 2,000 (or 22%) home-based workers for the CWAS. Horizon therefore now estimates that it will need accommodation for approximately 7,000 temporary non-home based workers. Therefore, it is proposing to reduce both the amount of purpose-built temporary workers accommodation and the number of workers anticipated to be housed in existing accommodation. The intended split is set out in table 5-1. Page 93

104 Table 5-1 Forecast demand for accommodation at peak construction Accommodation type Home-based (therefore not needing accommodation) Housed in temporary workers accommodation Stage Two Consultation (central case) 2,700 2,000 4,700 4,000 Housing in existing accommodation 3,300 3,000 Total 10,700 9,000 Existing capacity Current Proposals In the Stage Two Pre-Application Consultation, Horizon put forward its estimate of existing accommodation which it had assessed could be used without having significant negative impacts on its existing users. This covered: the private rented sector; tourism, including serviced accommodation, self-catering accommodation and caravans; the owner-occupied sector; and latent accommodation. Latent accommodation is new capacity coming to the market, particularly through the letting of spare bedrooms. Currently, IACC, Gwynedd Council and Welsh Government are undertaking their own capacity assessments and working to reach agreement with Horizon on the usable supply. This exercise has not yet been finalised and Horizon s position is summarised in table 5-2: Table 5-2 Predicted demand and supply of existing capacity Accommodation Type Predicted demand Total bed spaces Tourist ,970 6,500 Caravans ,750 3,100 Private rented sector ,700 1,285 Latent Owner occupied ,450 9,560 Total 3, ,280 18,220 Estimated Availability (Horizon) The likely distribution of the construction workforce across accommodation types is set out on figure 5-1. Page 94

105 Figure 5-1 Likely distribution of construction workforce across accommodation types Horizon s assessment shows that: there is significant spare capacity in the tourism sector that is available even in the August tourist peak; the balance of demand and supply is tight in the private rented sector and will require particularly careful monitoring and management; there is likely to be more latent accommodation than Horizon is currently assuming; and the level of demand for owner-occupied housing is likely to be accommodated within the natural churn and planned growth in the sector. 5.3 Stage Two Pre-Application Consultation feedback The Stage Two Pre-Application Consultation process generated a significant amount of feedback in respect of the intended strategy for the accommodation of temporary workers. The response to the intention to distribute temporary workers accommodation in various parts of Anglesey was mixed, there being some concern about the housing market and other socio-economic impacts. Page 95

106 The social, cultural and language implications of the strategy were raised widely as well as the potential impacts on public services such as schools and healthcare provision. There was a divergent range of opinions expressed about the various sites proposed for temporary workers accommodation at Holyhead, Amlwch and Rhosgoch, with generally equal support and objection for each site, largely depending on where respondents lived. There was no one site which received strong support. A detailed summary of responses to the Stage Two Pre-Application Consultation on this matter is provided at appendix A. Horizon has listened to the differing views expressed about whether it is better to disperse workers across Anglesey or locate them in a single location. Horizon s view is that on balance, the environmental and social effects of the construction workforce on the existing community is best managed through locating them in a single, temporary purpose-built campus as close as possible to the Power Station Site (called the Site Campus). This reduces daily vehicle trips on the local road network as much as possible and also has the benefit of being able to provide a single, managed site which itself provides all of the facilities required by workers, including leisure and healthcare, in one place. Further details on our approach are set out below. 5.4 Construction Worker Accommodation Strategy As set out above, the Project changes and construction programme mean that Horizon is now assessing accommodation for a peak of 9,000 workers, around 1,700 less than previously assessed. Based on this, and the updated understanding of the capacity of existing accommodation, Horizon is proposing to reduce the amount of temporary workers accommodation bed spaces from up to 5,700 to a maximum of 4,000. The changes to Horizon s approach to temporary workers accommodation are summarised in the table below: Table 5-3 Construction Worker Accommodation Strategy: Main Changes Construction Worker Accommodation Strategy: Main changes since the Stage Two Pre-Application Consultation As a result of the overall reduction in worker numbers, the numbers of construction workers to be accommodated in all forms of accommodation have reduced. The maximum requirement for temporary workers accommodation has reduced from around 5,700 bed spaces to around 4,000 bed spaces as a result of a reduction in the projected peak workforce. Temporary workers accommodation is no longer proposed at: Kingsland and Cae Glas (3,500 bed spaces); Rhosgoch (500-1,500 bed spaces); and, Madyn Farm (200 bed spaces). Amlwch Sites A and B (800 bed spaces) were also identified as possible alternative sites, but these are also no Page 96

107 Construction Worker Accommodation Strategy: Main changes since the Stage Two Pre-Application Consultation longer proposed. Up to 4,000 bed spaces are now proposed on the Site Campus, located north-east of the Power Station Site, within the WNDA. 5.5 Site Campus The Site Campus will provide an independent living space for each worker, with shared campus-style amenities. The Site Campus will be a temporary facility, completed in phases. This phasing is described later in this chapter. The Site Campus would provide temporary workers accommodation for individual workers, rather than families. As such it will be designed to meet the needs of workers living alone. Site location The Site Campus comprises approximately 15 hectares of greenfield land within the WNDA to the north-east of the Power Station Site and to the east of the Existing Power Station. Part of this land was previously identified for development of temporary workers accommodation (500 bed spaces) and materials storage during the Stage Two Pre-Application Consultation. Horizon considered a number of locations on the WNDA to locate the Site Campus. The site shown on figure 5-2 below was chosen because it maximises the distance of the accommodation from the active construction site while avoiding constraints on construction activities. It is also located away from neighbouring communities and in a location which will be partially screened by the LEMP proposals. Whilst the Site Campus is near environmental features including Tre r Gof SSSI, designated ancient woodland, and the existing bat barn, the detailed design will ensure that effects on these sites will be avoided or minimised. Preliminary environmental information is set out at the end of this chapter. The site location is shown on figure 5-2 below: Page 97

108 Figure 5-2 Site Campus: indicative location The preferred proposals for the temporary Site Campus comprise: accommodation for up to 4,000 workers in approximately 25 campus style modular buildings (providing an independent living space for each worker); amenity and welfare building including cafeteria, café, reception area, gym, bar and other social space; outdoor recreation including two Multi-Use Games Areas, outdoor seating and informal amenity spaces; Site Campus access road; disabled parking spaces and parking for light vans/minibuses; temporary parking for workers at Phase 1 only (approximately 400 spaces), to be replaced by approximately 800 temporary parking spaces by Phase 3 located to the south of the accommodation site and adjacent to the access road (see the LEMP in chapter 2 for location details); internal access ways for pedestrians, service vehicles and emergency vehicles; Page 98

109 basic first aid services for workers on the Site Campus, with access to a bespoke medical centre on the Power Station Site (further details are set out in chapter 7); a dedicated bus service and/or dedicated walking routes to transfer the temporary Site Campus residents to their place of work within the WNDA. A bus station for the marshalling of buses and to pick up and set down passengers would be segregated from the car parking and pedestrian areas; emergency vehicular access, which will be provided via the Existing Power Station to the north-west. Pedestrian emergency evacuation would be provided via a route to the north-east; and capacity at the existing Dŵr Cymru Welsh Water Sewage Treatment plant, located within the WNDA would be increased. During the peak operational stage of the Site Campus (i.e. at 4,000 bed spaces), up to 400 members of staff would be employed on-site for management, welfare and security services. Scalable infrastructure will be provided to meet the needs of workers during all phases of development at the Site Campus, including communications infrastructure. The intention is that all workers will have access to high quality internet facilities and also that network speeds will improve for existing residents and businesses in an area that is generally considered to have poor accessibility to these services. Indicative phasing The Site Campus would be used during the construction phase of the Power Station to accommodate workers on a temporary basis. It is expected that the Site Campus would be operational between 2021 and up to 2027, with peak occupation levels during 2023 and It is anticipated that construction of the Site Campus would commence in The Site Campus will be a temporary facility, completed in phases, with the first phase providing 1,000 bed spaces. Subsequent phases would include additions of at least 500 bed spaces, dependent on demand. This would ensure that temporary housing units would not be constructed unnecessarily, reducing the potential for unnecessary environmental effects. The main phases would be as follows: Phase 1: Approximately 1,000 bed spaces and 400 temporary parking spaces on land within the site adjoining the first phase; Phase 2: Approximately 1,500 additional bed spaces and 400 additional temporary parking spaces. The 400 temporary parking spaces provided at Phase 1 would become the temporary accommodation site for Phase 2 and so would be replaced by 800 temporary parking spaces at a location along the access road. Details of the area within which the parking would be located are shown in the LEMP section of chapter 2; and Phase 3: Approximately 1,500 additional bed spaces. Page 99

110 Outdoor recreation would be provided in the first phase of the development and the modular amenity and welfare building would be provided in equal proportions alongside the accommodation. Following construction of the Power Station, the Site Campus site would be decommissioned and returned to its pre-developed condition. Public footpaths and access to Fisherman s car park would also be reinstated. Table 5-4 Site Campus: Main Changes Site Campus: Main changes since the Stage Two Pre-Application Consultation The number of bed spaces has increased from 500 to up to 4,000, with an associated increase in the size of the Site Campus. The number of temporary residential buildings has increased from four to up to approximately 25, although the footprint of each building has significantly reduced, from around 2,800sq.m to around 850sq.m (less than 1/3 of the previous footprint). Most of the residential buildings will be 4-storeys in height. There is potential for buildings generally on lower ground to rise to up to 7-storeys. Previously all residential buildings were 4-storeys. It is expected that the Site Campus would be operational for six years, between 2021 and It will be constructed in a phased manner meaning that the development is likely to comprise significantly less than 4,000 bed spaces for most of this period. The previous proposals sought to construct 500 bed spaces on-site for the duration of the construction period. The co-location of up 4,000 construction workers in a single location forms a critical mass that better supports provision of on-site services and facilities, including two on-site Multi-Use Games Areas. All workers will have the opportunity to use the shared facilities at the Site Campus, irrespective of where they live. This will enable a greater opportunity for workers to interact, socialise and bond all of which will improve workers well-being. Travel times for up to 4,000 workers will be reduced, which will increase onsite productivity and reduce health and safety risks. Key workers will have immediate and easy access to the Power Station Site so they can respond to emergencies and out-of-hours needs. Emerging scheme design The preferred approach to design is set out below. Details will be further progressed following this consultation and included within the final development proposals, as part of the DCO application. The Site Campus would comprise a series of modular accommodation blocks that range from four to up to seven storeys in height and arranged around a central amenity/welfare building. Horizon anticipates that many of Page 100

111 the temporary residential buildings would be four storeys in height. Some buildings in later phases may be up to seven storeys in height, although due to their location toward the lower end of a sloping landscape, the aim is for all of the temporary residential buildings to appear at broadly the same height when viewed from a distance. The detailed design of the Site Campus will seek to minimise visual impacts. Landscape mounding as part of the LEMP will provide visual screening of the Site Campus from Tregele and partially from Cemaes. Horizon will apply a Site Campus Management Plan to avoid disruption to local communities, and a community liaison officer will be available should any queries arise. Details of the Site Campus Management Plan are set out later in this chapter. Figure 5-3 Site Campus: indicative masterplan The indicative layout shown on figure 5-3 provides a buffer of approximately 65 metres between the nearest blocks and Tre r Gof SSSI. Horizon is continuing to work with Natural Resources Wales (NRW) to minimise any impact on the SSSI and to develop appropriate mitigation. Preliminary Environmental Information is set out at the end of this chapter. External lighting would be a combination of pole and building wall-mounted. A central management system would be utilised, which would be remotely accessible. At this stage it is envisaged that light-emitting diode lighting will be used, with a detection system to provide lighting only when required for access. Page 101

112 The proposal for the Multi-Use Games Areas is to locate them in an area so they are generally screened from wider view by the proposed buildings and existing trees. A conceptual sketch showing how the temporary Site Campus may look at peak phasing is on figure 5-4 Figure 5-4 Site Campus: indicative view from near Llanbadraig Point Further details on the dimensions of specific buildings and structures are set out in table 5-5 below. The dimensions shown are Horizon s current best understanding of the likely dimensions and further details on the approach to flexibility is set out in chapter 1. Buildings/facilities Accommodation buildings Amenity and welfare building Combined substation, cycle store and bin store (for each accommodation Page 102 Table 5-5 Site Campus: indicative scale Indicative building dimensions (width x length) 12m x 70m. All buildings will be between four and seven storeys in height. Each building will provide between approximately 125 and 225 bed spaces. Phase 1: 45m x 45m x 9m high Phase 2: 45m x 90m x 9m high Phase 3: 60m x 90m x 9m high 10m x 5m x 4m high (each)

113 Buildings/facilities building) Security kiosk Multi-Use Games Areas Indicative building dimensions (width x length) A small security kiosk will be located at the site entrance. 20m x 40m each As indicatively shown on figure 5-3, a soft landscaping scheme will be further developed for amenity areas around the campus facilities and in the communal areas at the front of the accommodation buildings. These areas will include sheltered paving and mown grass with seating for shared informal use. A suitable level of planting, appropriate to the local flora, would be provided across the site. Existing landscape features (including the areas of woodland) will be retained where possible. Indicative appearance Details of the finishes and colour of the Site Campus are still to be developed but will be appropriate to the site context. Figure 5-5 Concept image of Site Campus appearance 5.6 Preliminary Environmental Information The PEI tables 5-6 and 5-7 presented below consider key likely changes in environmental effects from that reported in the Stage Two Pre-Application Consultation PEI Report, as a result of the Project changes. The first table considers the construction phase and the second table the operational phase. In each case, a precautionary approach has been taken and effects Page 103

114 are considered on a worst case basis. The first column of each table sets out the relevant environmental receptor involved and the change to the activity affecting that receptor since the Stage Two Pre-Application Consultation. The second column provides the assessment of the change of environmental effect since the Stage Two Pre-Application Consultation. The third column provides the preliminary conclusion on the likely residual environmental effect, following the Project changes. The scheme proposed during the previous consultation included a 500 bed space on-site temporary worker s accommodation combined with the other WNDA changes, and not the Site Campus in isolation as considered here. For details of these environmental effects, please see Volumes B1 to B16 of the Stage Two Pre-Application Consultation PEI Report, in particular in each volume the tables entitled Effects during Construction and Effects during Operation. Table 5-6 Preliminary Environmental Information: Site Campus Construction Receptor and change to activity since Stage Two Pre- Application Consultation Socio-economic Receptors Labour market, local economy, local businesses, nearby communities. Stage Two The proposed on-site campus accommodated 500 workers. What has changed The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Public Access and Recreation Receptor: Wales Coast Path, Offshore areas for recreation. Stage Two: The proposed Site Campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Existing Power Station, Page 104 Change of environmental effect since Stage Two Pre- Application Consultation Stage Two did not specifically assess the impact of development of a 500 worker campus on-site separately to assessments made in respect of the main site construction with regard to socio-economic impacts. There may be some additional local spend associated with the construction of the larger Site Campus in communities near the site. Stage Two did not specifically assess the impact on public access and recreation of development of a 500 worker campus. The construction site for the Site Campus will be fenced but the Wales Coast Path will not be diverted. However, the Preliminary environmental information anticipated residual effect This is likely to be a negligible effect upon the labour market, local economy and local businesses. This is anticipated to be a moderate adverse effect.

115 Receptor and change to activity since Stage Two Pre- Application Consultation overlooking Cemaes Bay. What has changed: The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Traffic and Transport Receptor: Motorised, nonmotorised users (NMUs) and public transport users travelling on or crossing the A5025. Stage Two: The proposed Site Campus accommodated 500 workers. What has changed The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Noise and Vibration Receptor: Residential properties (in Cemaes village, on the A5025 between Cemaes and Tregele, Tregele village, outlying residential properties west of WNDA, outlying residential properties south of WNDA, outlying residential properties east of WNDA, north of Llanfechell), education facilities, recreational receptors (including PRoWS), commercial properties. Change of environmental effect since Stage Two Pre- Application Consultation proximity of the fencing may alter the user experience of the footpath and its amenity value. Effects on offshore areas for recreation during construction will remain unchanged. Stage Two did not specifically assess the impact of development of a 500 worker campus on-site separately to assessments made in respect of the main site construction with regard to traffic and transport effects. Construction worker traffic to the WNDA may be marginally increased given the larger Site Campus. However, effects remain temporary in nature and a Travel Plan for construction workers will ensure appropriate measures are implemented to minimise impacts upon receptors. Stage Two did not specifically assess the impact on noise and vibration of development of a 500 worker campus separately to noise and vibration assessments made in respect of the main site construction. However, given the increase in size of the Site Campus from 500 to up to 4,000, it is likely that noise from the construction Preliminary environmental information anticipated residual effect This is likely to be a negligible effect. This is anticipated to be a moderate adverse effect on some receptors. Page 105

116 Receptor and change to activity since Stage Two Pre- Application Consultation Stage Two: The proposed Site Campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Existing Power Station, overlooking Cemaes Bay. What has changed: The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Groundwater and surface water Receptor: Tre r Gof SSSI. Stage Two: The proposed Site Campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Existing Power Station, overlooking Cemaes Bay. What has changed: The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Receptor: Secondary B aquifer (inc. resource/historical public wells), Tre r Gof Catchment. Change of environmental effect since Stage Two Pre- Application Consultation of the Site Campus will make a contribution to overall construction noise and vibration levels. Taking a precautionary approach in advance of modelling being completed, moderate significant adverse effects at some receptors cannot be discounted at present. Those with the greatest potential to be affected are noise sensitive receptors in the Cemaes area. Ongoing noise modelling will confirm the extent and magnitude of noise, and mitigation will continue to be developed to address effects. Stage Two did not specifically assess the impact on surface water and groundwater of development of a 500 worker campus on-site separately to assessments made in respect of the main site construction. With the increased size of the Site Campus, there are potential local effects to surface and groundwater movements to and through Tre r Gof SSSI due to new drainage proposals, which could occur over the medium term (5 10 years). Stage Two did not specifically assess the impact on surface water and groundwater of development of a 500 worker campus on-site separately to Preliminary environmental information anticipated residual effect This is likely to be a moderate adverse effect. This is likely to be a moderate adverse effect. Page 106

117 Receptor and change to activity since Stage Two Pre- Application Consultation Stage Two: The proposed on-site campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Existing Power Station, overlooking Cemaes Bay. What has changed: The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Terrestrial and freshwater ecology Receptor: Chough, breeding birds, over-wintering and passage birds, bats, red squirrel, Tre r Gof SSSI. Stage Two: The proposed Site campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Existing Power Station, overlooking Cemaes Bay. What has changed: The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Change of environmental effect since Stage Two Pre- Application Consultation assessments made in respect of the main site construction. With the increased size of the Site Campus, there are potential local effects to surface and groundwater movements to and through Tre r Gof SSSI due to new drainage proposals, which could occur over the medium term (5 10 years). Mitigation in the form of sustainable urban drainage proposals will be applied. Stage Two did not specifically assess the impact on ecology of development of a 500 worker campus on-site separately to assessments made in respect of the main site construction. There are likely to be significant alterations during the construction of the Power Station as a result of changes in hydrological conditions. It is difficult to assess effects of the Site Campus separately from the wider effects of Power Station, which would be occurring concurrently. Taken together, the proposals could result in long-term loss of the SSSI. A precautionary compensation strategy for effects to Tre r Gof SSSI is being developed and would be designed to offset, as far as possible, the potential loss of Preliminary environmental information anticipated residual effect This is likely to be a major adverse effect on Tre r Gof SSSI, when taken together with Power Station construction works given that in a worst case scenario, the outcome could be the long-term deterioration and loss of the SSSI. Effects to other receptors not likely to result in further deterioration as a result of the Site Page 107

118 Receptor and change to activity since Stage Two Pre- Application Consultation Landscape and Visual Receptor: Walkers using Wales Coast Path, local residents in Cemaes and Tregele, landscape character of WNDA and immediately adjoining area, boat users offshore, local seascape characters, current Anglesey SLA. Stage Two: The proposed Site Campus accommodated 500 workers. What has changed: The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Page 108 Change of environmental effect since Stage Two Pre- Application Consultation this site. Effects of the proposal on bats, specifically those roosting in the bat barn adjacent to the site, would be mitigated through site design. Effects on breeding and overwintering/passage birds, chough and red squirrel are likely to remain the same as habitat loss in this area does not alter. Disturbance effects are also likely to remain as in Stage 2. Stage Two did not specifically assess the impact on landscape of a development of a 500 worker campus on-site separately to assessments made in respect of the main site construction. Landscape and visual impacts, including night time visual impacts, will be greater than for the previously proposed smaller Site Campus given the larger footprint of the site, and the increased storey height. However, effects remain temporary in nature. Horizon is continuing to develop mitigation, and has taken a precautionary approach to this being adopted. Preliminary environmental information anticipated residual effect Campus. This is likely to be a moderate adverse effect Other temporary worker accommodation sites included in Stage Two Pre- Application Consultation Amlwch Sites A and B and Madyn Farm Environmental considerations Almwch Sites A and B, and Madyn Farm, no longer forms There will be no effects at

119 Receptor and change to activity since Stage Two Pre- Application Consultation Socio-economic Traffic and transport Terrestrial and freshwater ecology Landscape Surface water and ground water Public access and recreation Noise and vibration Stage Two Previously two sites (sites A and B) comprising the provision of up to 800 bed spaces for temporary workers. Madyn Farm comprised a site of 50 houses to provide 200 bed spaces for construction workers, which would be converted to permanent housing (a proportion of which was affordable) following the completion of the construction works. What has changed The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. It is no longer proposed to provide any temporary worker accommodation at Almwch Sites A and B, or Madyn Farm. Rhosgoch Environmental considerations Socio-economic Traffic and transport Terrestrial and freshwater ecology Landscape Surface water and ground water Public access and recreation Change of environmental effect since Stage Two Pre- Application Consultation part of the Project proposals. There will now no longer be any impacts on sensitive receptors near these sites. This site no longer forms part of the Project proposals. There will now no longer be any impacts on sensitive receptors near this site. Preliminary environmental information anticipated residual effect these sites. There will be no effects at this site. Page 109

120 Receptor and change to activity since Stage Two Pre- Application Consultation Noise and vibration Stage Two This site was to provide up to 1,500 bed spaces for temporary workers. What has changed Change of environmental effect since Stage Two Pre- Application Consultation Preliminary environmental information anticipated residual effect The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. No accommodation is now proposed at Rhosgoch. Land and Lakes (Kingsland and Cae Glas) Environmental Considerations Assessed in Land and Lakes Environmental Statement. Stage Two The proposed Site Campus accommodated 500 workers. Kingsland and Cae Glas at Holyhead, was identified for up to 3,500 temporary bed spaces. It was proposed that this would provide a legacy of holiday accommodation and permanent residential development following the completion of the construction works. This site no longer forms part of the Project proposals. However, the Land and Lakes sites are separately consented under their own planning permission and as such Horizon does not control how they may be developed in the future. There will be no effects at this site as a result of the Project. What has changed The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. It is no longer proposed to provide up to 3,500 temporary bed spaces at Land and Lakes. Page 110

121 Table 5-7 Preliminary Environmental Information: Site Campus Operation Receptor and change to activity since Stage Two Pre- Application Consultation Socio-economic Change of environmental effect since Stage Two Pre- Application Consultation Preliminary environmental information anticipated residual effect Receptors: Local economy, local businesses, nearby communities Stage Two The proposed on-site campus accommodated 500 workers. What has changed The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Stage Two did not specifically assess the impact of 500 workers accommodated onsite separately to assessments made in respect of the main site construction with regard to socio-economic impacts. With an increased number of workers being accommodated on-site it is likely that there will be an increase in the impact felt by local communities as a result of the presence of workers in the area. Horizon is mindful that this also includes perceived effects for example upon crime, health, social cohesion and Welsh language. Employees residing on the Site Campus will be required to conduct themselves in accordance with the Site Campus Management Plan. The increased number of workers in the Site Campus is anticipated to increase spend within local businesses. This is likely to be a minor beneficial effect upon local economy and local businesses. This is likely to have a minor adverse effect upon communities. Public Access and Recreation Receptor: Wales Coastal Path, Offshore areas for recreation Stage Two: The proposed Site Campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Stage Two did not specifically assess the impact on Public Access and Recreation of 500 workers accommodated onsite. The Site Campus will be fenced but the Wales Coast This is anticipated to be a moderate adverse effect on onshore public access and recreation, Page 111

122 Receptor and change to activity since Stage Two Pre- Application Consultation Existing Power Station, overlooking Cemaes Bay. What has changed: The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Traffic and Transport Receptor: Motorised, NMUs and public transport users travelling on or crossing the A5025. Stage Two The proposed Site Campus accommodated 500 workers. What has changed The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Noise and Vibration Receptor: Residential properties (in: Cemaes village, on the A5025 between Cemaes and Tregele, Tregele village, outlying residential properties west of WNDA, outlying residential properties south of WNDA, outlying residential properties east of WNDA, north of Page 112 Change of environmental effect since Stage Two Pre- Application Consultation Path will not be diverted. The presence of the Site Campus close to the footpath may alter the user experience of the footpath and its amenity value. There is no direct effect from the presence of the Site Campus on offshore recreation. Stage Two did not specifically assess the impact of 500 workers accommodated onsite separately to assessments made in respect of the main site construction with regard to traffic and transport effects. Operational traffic movements will be greater than for the previously proposed smaller Site Campus as a result of the increased number of workers being accommodated at this facility. A Travel Plan for the operation phase of the Site Campus will ensure appropriate measures are implemented to minimise impacts upon receptors. Stage Two did not specifically assess the impact on noise and vibration of 500 workers accommodated on-site. However, given the increase in size of the Site Campus from 500 to up to 4,000, and the proximity to receptors being Preliminary environmental information anticipated residual effect with a negligible effect anticipated on offshore recreational users. This is likely to be a minor adverse effect. This is anticipated to be a negligible to minor adverse effect on some receptors.

123 Receptor and change to activity since Stage Two Pre- Application Consultation Llanfechell), education facilities, recreational receptors (inc. PRoWS), commercial properties. Stage Two: The proposed Site Campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Existing Power Station, overlooking Cemaes Bay. What has changed: The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Groundwater and surface water Receptor: Tre r Gof SSSI Stage Two: The proposed Site Campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Existing Power Station, overlooking Cemaes Bay. What has changed: The proposed Site Campus has increased from 500 workers to up Change of environmental effect since Stage Two Pre- Application Consultation reduced it is likely that there will be some noise from the operation of the site campus that will make a contribution to overall noise levels during this period. Examples of this include movements of workers around the site, workers utilising outdoor recreation facilities and testing of fire alarms. However, it is unlikely that any noise generated from the operational phase of the Site Campus would give rise to significant noise effects at local receptors. Modelling work is ongoing to confirm this. A Construction Noise Management Plan would also be implemented, under the Code of Construction Practice, to ensure that adequate noise control and monitoring measures are implemented throughout the construction phase of the Power Station. Stage Two did not specifically assess the impact on surface water and groundwater of 500 workers accommodated onsite separately to assessments made in respect of the main site construction. With the increased size of the Site Campus, there are potential local effects to surface and groundwater movements to and through Preliminary environmental information anticipated residual effect This is likely to be a moderate adverse effect. Page 113

124 Receptor and change to activity since Stage Two Pre- Application Consultation to 4,000 workers, in the same location as the Stage Two proposals Receptor: Secondary B aquifer (including water resource/historical public wells), Tre r Gof Catchment Stage Two: The proposed Site Campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Existing Power Station, overlooking Cemaes Bay. What has changed: The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Change of environmental effect since Stage Two Pre- Application Consultation Tre r Gof SSSI due to new drainage proposals, which could occur over the medium term (5 10 years). However, given the scale of the main site construction works occurring at the same time, the assessment and any effects - will be managed alongside protocols in place at the main site. Stage Two did not specifically assess the impact on surface water and groundwater of 500 workers accommodated onsite separately to assessments made in respect of the main site construction. With the increased size of the Site Campus, there are potential local effects to groundwater and surface water movements to and through Secondary B aquifer (including water resource/ historical public wells) and Tre r Gof SSSI due to new drainage proposals, which could occur over the medium term (5 10 years). Mitigation in the form of sustainable urban drainage proposals will be applied. Given the scale of the main site construction works occurring at the same time, the assessment and any effects - will be influenced by protocols in place at the main site. Preliminary environmental information anticipated residual effect This is likely to be a moderate adverse effect. Page 114

125 Receptor and change to activity since Stage Two Pre- Application Consultation Terrestrial and freshwater ecology Receptor: Chough, breeding birds, over-wintering and passage birds, bats, red squirrel, Tre r Gof SSSI. Stage Two: The proposed Site Campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Existing Power Station, overlooking Cemaes Bay. What has changed: The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Change of environmental effect since Stage Two Pre- Application Consultation Stage Two did not specifically assess the impact on ecology of 500 workers accommodated on-site separately to assessments made in respect of the main site construction. The larger site footprint, on a precautionary approach, has the potential to adversely affect receptors, when taken together with main construction works. Further modelling and assessment work is ongoing to further consider effects. Mitigation measures applied at the construction phase will continue to be in place throughout operation. Preliminary environmental information anticipated residual effect This is likely to be a major adverse effect. Landscape and Visual Receptor: Walkers using Wales Coast Path, local residents in Cemaes and Tregele, landscape character of WNDA and immediately adjoining area, boat users offshore, local seascape characters, current Anglesey SLA. Stage Two: The proposed Site Campus accommodated 500 workers, located to the south of Wylfa Head and to the east of the Existing Power Station, overlooking Cemaes Bay. What has changed: The proposed Site Campus has Stage Two did not specifically assess the impact on landscape of 500 workers accommodated on-site separately to assessments made in respect of the main site construction. Landscape and visual impacts, including night time visual impacts will be greater than for the previously proposed smaller on-site facility given the larger footprint of the site, and the increased storey height. Horizon is continuing to develop mitigation, and has thus taken a precautionary approach to this assessment. This is likely to be a minor adverse effect. Page 115

126 Receptor and change to activity since Stage Two Pre- Application Consultation Change of environmental effect since Stage Two Pre- Application Consultation increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. Other temporary worker accommodation sites reported at Stage Two Amlwch (Sites A and B, and Madyn Farm) Environmental considerations Socio-economic Traffic and transport Terrestrial and freshwater ecology Landscape Surface water and ground water Public access and recreation Noise and vibration Stage Two Previously two sites (sites A and B) comprising the provision of up to 800 bed spaces for temporary workers. Madyn Farm comprised a site of 50 houses to provide 200 bed spaces for construction workers, which would be converted to permanent housing (a proportion of which was affordable) following the completion of the construction works. What has changed The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. It is no longer proposed to provide any temporary worker accommodation at Amlwch Sites A and B, or Madyn Farm. Amlwch Sites A and B, and Madyn Farm, no longer form part of the Project proposals. There will no longer be any impacts on sensitive receptors near these sites. However, potential benefits (such as local spend) arising from the sites at these locations will not eventuate. Whilst the legacy benefits of Madyn Farm will not be delivered in the same way, Horizon is proposing to deliver funding through its community benefits scheme to support a capital investment programme for the provision of new build social and affordable housing. Preliminary environmental information anticipated residual effect There will be no effects at this site. Page 116

127 Receptor and change to activity since Stage Two Pre- Application Consultation Rhosgoch Environmental considerations Socio-economic Traffic and transport Terrestrial and freshwater ecology Landscape Surface water and ground water Public access and recreation Noise and vibration Stage Two This site was to provide up to 1,500 bed spaces for temporary workers. What has changed The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two proposals. No accommodation is now proposed at Rhosgoch. Land and Lakes (Kingsland and Cae Glas) Stage Two The proposed Site Campus accommodated 500 workers. Kingsland and Cae Glas at Holyhead, identified for up to 3,500 temporary bed spaces. It was proposed that this would provide a legacy of holiday accommodation and permanent residential development following the completion of the construction works. What has changed The proposed Site Campus has increased from 500 workers to up to 4,000 workers, in the same location as the Stage Two Change of environmental effect since Stage Two Pre- Application Consultation The site no longer forms part of the Project proposals. There will no longer be any impacts on sensitive receptors near these sites. However, potential benefits (such as local spend and a legacy benefit of leaving this site as a serviced site) will not eventuate. These sites no longer forms part of the Project proposals. However, the Land and Lakes sites are separately consented under their own planning permission and as such Horizon does not control how they may be developed in the future. Effects from worker traffic travelling from the Land and Lakes sites to the Power Station will no longer arise. Preliminary environmental information anticipated residual effect There will be no effects at this site. There will be no effects at this site as a result of the Project. Page 117

128 Receptor and change to activity since Stage Two Pre- Application Consultation proposals. It is no longer proposed to provide up to 3,500 temporary bed spaces at Land and Lakes. Change of environmental effect since Stage Two Pre- Application Consultation Preliminary environmental information anticipated residual effect 5.7 Proposed mitigation Horizon is preparing a comprehensive package of additional mitigation to reduce effects where possible. The main mitigation measures are set out below: Worker Accommodation Management Service; Site Campus Management Plan; drainage strategy; and LEMP, as explained in chapter 2. Worker Accommodation Management Service Horizon acknowledges the consultation feedback expressed concerns as to the impact a large influx of construction workers will have on locally available accommodation. Whilst Horizon believes the overall balance of demand and supply of existing accommodation is reasonable, that demand and supply need to be effectively matched to avoid localised problems. Horizon is therefore continuing to propose a management service called the WAMS (previously called the Construction Worker Accommodation Management Portal in the Stage Two Pre-Application Consultation). This service will match Wylfa Newydd construction workers with available accommodation The WAMS will: maintain a database of suitable properties; provide a means for workers to find accommodation that meets their needs (price, location, facilities) and be put in contact with the provider; record data on worker choices and report to an oversight board; and operate to targets set by the board. The operator of the service will be required to work with providers to ensure there is an adequate supply of accommodation and that providers meet the necessary legal standards to offer accommodation to workers. The operator will also manage an online portal for workers to be matched with providers, and to record data on the choices made. Page 118

129 An oversight board will set targets in terms of both the performance of the Worker Accommodation Management Service (e.g. the number of rooms offered and the number of workers that use it) and the outcomes it achieves (e.g. avoiding impacts in certain locations or sectors). It will receive reports from the agent and from other stakeholders (e.g. accommodation providers, tourism businesses, communities etc.) and use those to adjust targets as necessary (for example, to guide workers towards or away from certain locations or sectors). Site Campus Management Plan The Site Campus Management Plan would identify measures to help ensure that any adverse effects on local communities, Welsh language and culture, that may be caused by operating the temporary Site Campus, are minimised or, where possible, avoided. The Site Campus Management Plan will include: expected standards to be placed on workers living the Site Campus in relation to their conduct and behaviour whilst employed on the Wylfa Newydd project. This will include aspects such as prohibiting use of drugs and discouraging excessive alcohol consumption, promoting worker health and well-being, respecting the local community, welsh language and culture, keeping noise and disruption to a minimum and eliminating abusive behaviour; the provision of comprehensive facilities within the Site Campus to meet the majority of workers needs thus limiting the requirement for workers to venture off-campus for essential services, including catering, laundry services, basic shopping provisions, health & well-being facilities and recreational facilities; a comprehensive travel plan setting out how workers will travel to and from the Site Campus at the start and end of their working shift pattern including connections with public transport links, travel to/from the park and ride and requirements on vehicle sharing and identified vehicle routes; arrangements for facilities management of the temporary Site Campus, setting out how such provisions will be managed to reduce waste, bring efficiencies in vehicle movements and reduce disruption caused by lighting and noise; arrangements for the provision of information to workers setting out key services on Anglesey and North Wales including recreational activities available to workers who choose not to travel home at alternate weekends. This would include arrangements for transporting workers including connections with public transport; security requirements for access to the Site Campus and arrangements for maintaining appropriate access to any open public rights of way whilst maintaining appropriate segregation from members of the public; A Community Liaison Officer will be appointed to oversee the effective delivery of the Site Campus Management Plan and to act as a direct point of contact for members of the public. Page 119

130 Drainage strategy The site is naturally split into a number of catchment areas and it is proposed to replicate, where possible, these areas in the development and their associated discharge locations. Surface water flows will be discharged to existing local watercourses/drains and be limited to greenfield runoff rates and rates which replicate, where possible, flows into the Tre r Gof SSSI. The foul drainage strategy will involve an extension to the existing Dŵr Cymru Welsh Water Treatment Plant located to the west of the Site Campus. It is likely that the extension to these facilities will be contained within the WNDA and not involve land within the Site Campus red line. Page 120

131 5.8 Scope to influence the changes Horizon welcomes your views on its revised approach to accommodating its construction workers: We have listened to your comments and as a result have updated our Construction Workers Accommodation Strategy. We are now proposing to create a temporary Site Campus, next to the Power Station Site, with dedicated accommodation and other facilities for up to 4,000 workers. As a result we no longer need to build construction worker accommodation anywhere else on Anglesey. However, as we have previously proposed, we are still looking to house other workers in private homes and tourism accommodation. Do you agree with our plans to provide campus style temporary worker accommodation on-site in the Site Campus? Yes (please give reasons): No (please give reasons):... Unsure No Preference If the Site Campus is developed for construction workers, what do you think should be our priorities for reducing any potential effects on local communities? (please rank 1 (most important to you) to 7 (least important to you)): Good management of workers Keeping workers separate from communities Encouraging workers to be part of communities Controlling traffic movements Reducing noise Quality of landscaping Other Page 121

132 6 Transporting the construction workers and materials 6.1 Introduction The Wylfa Newydd Project has significant transport requirements both in terms of construction logistics (e.g. transport of materials), travel patterns of construction workers and operational requirements. This chapter provides an overview of Horizon s Integrated Traffic and Transport Strategy (ITTS) and describes the evolving transport proposals associated with the Wylfa Newydd Project. More information on the existing transport context and ITTS is set out in chapter 10 of the Stage Two Pre-Application Consultation Main Consultation Document. 6.2 Stage Two Pre-Application Consultation feedback The proposals to transport the majority of construction materials by sea were generally supported as were the schemes to improve the A5025 with On-line and Off-line Highway Improvement works. With respect to the latter the need to take into consideration environmental, tourism and amenity matters were raised. The manner in which potential traffic flows onto the island are managed and the absence of parking provision outside of Anglesey are also raised as issues within the responses and included in the summary of feedback provided at appendix A. The current proposals are anticipated to result in an overall reduction (when compared with the previous proposals) in the number of vehicles on Anglesey on both a daily and weekly basis. This reduction is due in partly to a reduction in peak worker numbers and increased car share ratios. The current proposals are also anticipated to put less pressure on Britannia and Menai bridges due to the same reasons. 6.3 Background to the Integrated Traffic and Transport Strategy Horizon s over-arching aims for transporting its workers and materials have not changed since the Stage Two Pre-Application Consultation and remain as follows: providing an effective and efficient transport system with greater use of more sustainable forms of travel and reducing the need to travel; and improving the transport network to positively affect the local and global natural and built environment while reducing adverse effects. Page 122

133 Horizon s ITTS has been informed by the following Project changes in particular: the number of workers and where they will be accommodated (see chapters 4 and 5 for more details); and the amount of material that needs to be transported to and from the site (see below for more details). The approach is also informed by other factors such as the existing transport capacity and worker shift patterns. However these elements have not changed significantly since the Stage Two Pre-Application Consultation. 6.4 Transporting the workers Horizon continues to promote the following key measures to meet the significant transport requirements of the Project: parking management, to reduce the number of private vehicles on the road; shuttle buses for home based workers and workers in existing accommodation to and from the Power Station Site; shuttle buses to and from key transport links at peak times; temporary Park and Ride facility at Dalar Hir; temporary Logistics Centre at Parc Cybi; On-line and Off-line Highway Improvements to the A5025; walking and cycling provision; provision of travel information; and encouragement of rail use. The workforce requirement profile, as set out in chapter 4, will continue to be refined alongside the construction methodology. As part of this process, Horizon will continue to explore the introduction of other sustainable transport methods, such as park and share facilities. These matters have been (and continue to be) discussed with stakeholders. For those not living at the Site Campus, it is expected that car sharing and buses will be at the heart of workers daily routines and a database will be made available to allow workers to find colleagues as close to their accommodation as possible. The following measures have been refined in response to consultation feedback and as a result of recent changes to the Project: Table 6-1 Proposed Transport Measures: Main Changes Proposed Transport Strategy: Main changes since the Stage Two Consultation Car sharing Horizon is now proposing a transport strategy with a greater emphasis on car sharing, including incentives such as preferential parking at the WNDA for those with a high vehicle occupancy of at least three workers per car for trade workers. This approach incentivises sustainable transport, by rewarding those who car share from Page 123

134 Proposed Transport Strategy: Main changes since the Stage Two Consultation their point of departure with reduced travel time to work and increased flexibility. Traffic movements Fewer daily and weekly worker traffic movements on Anglesey as a whole, which is expected to reduce pressure on the Britannia and Menai bridges. This has been possible by revising the: Construction Worker Accommodation Strategy; construction methodology (which reduces the peak construction workforce); and, an increased focus on car sharing. For example, there are now no car movements associated with workers travelling to Land and Lakes or Rhosgoch, or any movements that they may have made whilst they were living there, or buses taking them from those disparate accommodation sites to work. Fewer weekly worker traffic movements on the A5025 associated with worker shift rotations. Due to the 11-day worker shift pattern there will be focused periods where workers arrive and leave the Site Campus. The reduction would be achieved due to the increased focus on car sharing and the addition of long-stay worker parking at the Park and Ride facility, as well as the removal of the other temporary workers accommodation sites. Increased daily worker traffic movements on the A5025, but these increases remain well within the design capacity of the road, particularly after the proposed Highways Improvements. There will be 1,200 more car movements per day (600 cars arriving and leaving the site), but there will be 260 less buses movements. Daily worker travel movements along the A5025 North (Amlwch to Power Station Site) increases from a 7% increase to an up to 15% increase, compared with current traffic levels. Daily worker travel movements along the A5025 West (Valley to Power Station Site) increases from a 90% increase to an up to 98% increase, compared with current traffic levels. This is principally because of an increase in parking on-site for construction workers. The increase in 600 daily car movements arises from an increase from 500 car parking spaces at the Power station Site to 1,100 during the construction stage. Car parking spaces An overall reduction of approximately 2,000 car parking spaces on Anglesey, from approximately 5,800 to 3,800 car parking spaces. There will be: 800 fewer parking spaces at the Park and Ride facility; approximately 2,100 fewer parking spaces from no longer proceeding with Rhosgoch, Kingsland and Cae Glas temporary workers accommodation sites; and, 900 additional parking spaces at the WNDA. Other key changes The above daily traffic increases on the A5025 relate to daily worker travel only. In addition to this, construction deliveries from the logistics centre along the A5025 are now expected to be half of that previously assumed to be the worst-case scenario (80 HGV movements per hour). More details are set out in the section below. Fewer shuttle buses (for workers not in the Site Campus) along the A5025 North due to reduced demand. Horizon now propose up to approximately 25 daily shuttle bus movements along the A5025 North and up to approximately 20 daily shuttle bus Page 124

135 Proposed Transport Strategy: Main changes since the Stage Two Consultation movements along the A5025 West. Shuttle buses are no longer required to serve local railway stations for daily commuting purposes as it is projected that there will be insufficient demand. Shuttle buses will continue to be offered between key locations and Holyhead railway station for those workers travelling home during their leave period. The car sharing approach will be facilitated through a web-based database and mobile application to match workers living in close proximity and on similar shifts. Parking management and enforcement will be developed to minimise impacts on local residents and prevent indiscriminate parking. Horizon is aiming for an overall Project-wide car share factor of two workers per car, which is consistent with other comparable Nationally Significant Infrastructure Projects. Horizon has carried out further work to understand the impact of the Project on the Britannia and Menai bridges, in consultation with stakeholders. This shows that there is considered to be no justification in capacity terms for a mainland park and ride facility. For those workers living in the main towns on the mainland, such as Caernarfon and Bangor, direct bus services would be provided to the WNDA, as proposed previously. Horizon would also implement a robust car sharing strategy to help minimise trips over the bridges as set out above. An on-going dialogue with stakeholders is being maintained and further work is being undertaken to investigate the potential need for any further mitigation, such as park and share facilities. 6.5 Transporting materials Approximately 5.5 million tonnes of materials would be transported to and from Anglesey during the construction phase to support the construction of the Power Station, Off-site Power Station Facilities, Associated Development and Off-line Highway Improvement works. There are no material changes proposed to these aspects of the Project. An overview is set out below, and more information can be found in chapter 10 of the Stage Two Pre- Application Consultation Main Consultation Document. Horizon continue to estimate that between 60% and 80% of all materials associated with the construction of the Wylfa Newydd Project would be delivered by sea, using the MOLF. Maximising the potential to deliver construction materials and freight by sea minimises the amount of road freight and associated impacts on the road network For the purposes of assessing a worst-case scenario in terms of traffic impact, Horizon also continue to assume that up to 40% of construction materials would be delivered by road, although the volume being transported by road will be minimised as far as possible. The Logistics Centre, which is described in more detail below, has a critical function in regulating the flow of freight traffic into the Power Station Site. As a worst-case scenario in terms of traffic impact, it is assumed that a maximum of 40 HGV deliveries per hour Page 125

136 would travel along the A5025 between the hours of 0700 and 1900 hours Monday to Friday. It is anticipated that a lower number of deliveries may be undertaken on a Saturday morning and very low volumes of HGVs at all other times. The Wylfa Newydd Project will require the delivery of around 800 units of extremely large plant and equipment, termed AILs during Main Construction. These AILs exceed the dimensions of standard road traffic. Horizon's intentions are that these would be delivered by sea. Road transport for construction equipment and extremely large plant would only be considered in exceptional circumstances and would be managed through a Construction Traffic Management Plan. At this stage, there is not anticipated to be any movement of construction materials between the WNDA, and other Project sites. There have been no changes to the assumed level of operational deliveries since the Stage Two Pre-Application Consultation, which remain very significantly lower than during the construction stage. Table 6-2 provides an estimate of the maximum tonnage of construction material required for the Project and its likely method of transport. It is important to note that the materials may start their journey by a different mode of transport and the below table represents the transport mode by which the materials will arrive at its destination. This is an appropriate way of recording the transportation of materials as there is the greatest potential for environmental impacts at the local level. Material Bulk materials (aggregate, sand, cement and rebar) Common materials (e.g. scaffolding, formwork, landscaping, consumables) Containerised goods (specialised materials, e.g. tubing, cabling, electrical) AILs excluding construction equipment and plant Table 6-2 Transportation of construction materials Page 126 Estimated tonnage (Stage Two Consultation) Estimated tonnage (Stage Three Consultation) Transport by sea 4,432,000 4,220,000 80% (min) Transport by road 20% (max) 685,800 1,075,000 0% 100% 72,000 63,000 0% 100% 42,000 52, % 0% Waste 125, ,000 0% 100% Total 5,356,800 5,585, % 20-40%

137 Table 6-3 Construction materials: Main Changes Construction Materials: Main changes since the Stage Two Consultation The amount of construction material has increased by approximately 0.2 million tonnes to approximately 5.5 million tonnes over the duration of the construction period. All material excavated within the WNDA will now be retained within this area. 50,000 tonnes more construction waste material is now predicted to be generated. Around 200,000 tonnes less concrete is now predicted to be generated as a result of design optimisation of the nuclear reactor units. The predicted tonnage of common materials appears to have increased by around 50% from the previous consultation, however this is simply due to the inclusion of Associated Development and Off-site Power Station Facilities in the figures for the first time. Preliminary Environmental Information traffic and transport Project-wide The PEI tables 6-4 presented below consider key likely changes in environmental effects from that reported in the Stage Two Pre-Application Consultation PEI Report, as a result of the Project changes. The first table considers the construction phase and the second table the operational phase. In each case, a precautionary approach has been taken and effects are considered on a worst case basis. The first column of each table sets out the relevant environmental receptor involved and the change to the activity affecting that receptor since the Stage Two Pre-Application Consultation. The second column provides the assessment of the change of environmental effect since the Stage Two Pre-Application Consultation. The third column provides the preliminary conclusion on the likely residual environmental effect, following the Project changes. For details of environmental effects that have not changed since the Stage Two Pre-Application Consultation, please see Volume B3 of the Stage Two Pre-Application Consultation PEI Report. Table 6-4 Preliminary Environmental Information: Traffic and transport Project-wide Receptor and change to activity since Stage Two Pre- Application Consultation Change of environmental effect since Stage Two Pre- Application Consultation Preliminary environmental information anticipated residual effect Receptor: Rail passengers Stage Two: The movement of workers including by rail - was based on a construction workforce of around This was anticipated to be a moderate adverse effect in Stage Two. At Stage Two, movement of workers by rail was predicted This is still likely to be a moderate adverse effect on Sunday PM Page 127

138 Receptor and change to activity since Stage Two Pre- Application Consultation 10,700, leading to potential capacity issues at certain times. What has changed: Fewer workers are now anticipated resulting in a reduced number of workers moving by rail during peak times. Receptor: Road traffic from temporary workers' accommodation to the WNDA (bus movements) Stage Two: Transportation of construction workers from Rhosgoch, Amlwch, Madyn Farm, Cae Glas and Kingsland campus style temporary workers' accommodation to the WNDA. What has changed: All campus style temporary workers' accommodation will now be accommodated on-site (the Site Campus). Receptor: Road traffic from private vehicles (private cars) Stage Two: Dalar Hir had approximately 2,700 car parking spaces and onsite car parking provision was 500. What has changed: Dalar Hir provision has decreased to 1,900 spaces. On site car parking provision has Page 128 Change of environmental effect since Stage Two Pre- Application Consultation to exceed capacity on inbound rail services on a Sunday PM and on outbound rail services on a Thursday PM. The reduced number of workers would ease pressure on rail services on Sunday and Thursday, providing an overall improvement compared to Stage Two on capacity issues at these times. This was anticipated to be a major adverse effect in Stage Two. Approximately 260 buses from these locations would no longer run daily to and from the WNDA, which reduces effects previously predicted on those routes. This was anticipated to be a moderate adverse effect in Stage Two. This change sees a reduction in bus journeys by up to 260 journeys per day in total to and from the WNDA, and a net increase of approximately 1,200 car journeys per day in total to and from the WNDA (from the A5025 West and North). The overall effect on daily worker travel movements Preliminary environmental information anticipated residual effect and Thursday PM. This is likely to be a major to moderate adverse effect. This is still likely to be a moderate adverse effect.

139 Receptor and change to activity since Stage Two Pre- Application Consultation increased to 1,900. Change of environmental effect since Stage Two Pre- Application Consultation along the A5025 North is to increase daily traffic movements from a 7% increase identified at the Stage Two to a 15% increase, compared with current traffic levels. The effect on the A5025 West is to increase daily traffic movements from a 90% increase identified at the Stage Two to a 98% increase, compared with current traffic levels. These increases remain well within the design capacity of these roads, and as a result there will be no material change to the traffic and transport effects from Stage Two. Preliminary environmental information anticipated residual effect 6.6 Dalar Hir Park and Ride facility The Park and Ride facility is a key component of Horizon's ITTS and mitigation of traffic effects. It is anticipated that the Park and Ride will mainly attract those workers living on Anglesey and on the mainland. It would not be available for public use. The Park and Ride will support the construction phase of the Power Station. At the end of the construction period it would be removed and the site reinstated to agricultural use. It will allow for secure vehicle parking and the controlled transportation of workers, by bus, to the WNDA, which will reduce the number of individual car trips travelling on the local road network. Stage Two Pre-Application Consultation feedback In response to the Stage Two Pre-Application Consultation the Welsh Government and IACC questioned the rationale and assumptions for the Dalar Hir site and raised several concerns regarding its impact on the environment and on traffic flows. The feedback recorded some support for the proposed park and ride site, although this was often caveated by suggestions of the need for additional locations both on and off Anglesey. Page 129

140 Horizon has given serious consideration to the appropriateness of the Dalar Hir site and undertaken further modelling as to whether additional park and ride sites (including on the mainland) are required. Horizon s position is that Dalar Hir remains the most appropriate site for a park and ride. It is located on the strategic road network at an appropriate point to intercept workers travelling from the mainland and the south of the island and more remote areas. Site location As stated above, the proposed Park and Ride facility remains at the same site to the north of the A55 at Dalar Hir. Figure 6-1 Dalar Hir Park and Ride facility: indicative location Full details of the Park and Ride site at Dalar Hir and its key characteristics are set out in chapter 12 of the Stage Two Pre-Application Consultation Main Consultation Document. The revised preferred proposals for the Park and Ride comprise: secure parking for up to 1,900 parking spaces, as well as spaces for approximately 55 minibuses, 35 motorbikes and 35 bicycles; bus terminal facility building; Page 130

141 bus waiting pick up and drop off zone for up to 15 buses with additional parking for approximately 8 buses; access to the site via a new roundabout located near the existing A55-A5 junction (Junction 4); cycle store; a clear span bridge over the main watercourse; Sustainable Drainage Systems (SuDS) including permeable paving used where possible to improve drainage and facilitate the site s return to agricultural use; and, 15m wide ecological protection buffer zones either side around the stream and tributary and 10m wide zones either side around the primary wet ditch. As shown on figure 6-2, the northern, western and eastern boundaries would continue to be planted with species rich grass. There would be ecological protection buffer zones around the stream, tributary, water discharge locations and at the north of the site to incorporate species protection. A short length of hedgerow would be reinstated adjacent to parking zones along the north edge of the site. At the vehicle entrance, existing stone walling and hedgerows would be reinstated. The existing tree and shrub planting on the southern boundary would be retained and enhanced to screen views from the A5. There would be additional planting along the A5 to provide improved screening from the A55. It is still proposed that the bus transport facility building will be a simple, single storey structure faced with stone and timber effect cladding. It is anticipated that construction of the Park and Ride would commence in 2019 and would be operational between 2020 and up to Following construction of the Power Station, the Park and Ride would be removed and the land restored to its existing use (agricultural land). The enhanced existing hedge line and proposed new hedge line to the west of the site, along with the enhanced tree and shrub planting, using native species, on the southern boundary would be retained as a legacy benefit. Page 131

142 Figure 6-2 Park and Ride facility: indicative masterplan Page 132

143 Figure 6-3 Dalar Hir Park and Ride facility: aerial sketch Figure 6-4 Dalar Hir Park and Ride facility: indicative view Page 133

144 Table 6-5 Park and Ride facility: Main Changes Park and Ride facility: Main changes since the Stage Two Consultation Secure parking reduced from 2,700 to up to 1,900 parking spaces. The reduced parking area allows more green space to be retained around the northern and eastern boundaries of the site. This reflects the increased car parking at the Power Station Site and improved vehicle occupancy rates. The Park and Ride facility would now also be partially used for long-stay parking for a proportion of workers at the Site Campus. This reduces traffic on the A55 and on the A5025 between Valley and the WNDA. This is because such workers travelling to and from their permanent homes between (11-day) shifts would travel by bus on the above sections of road, rather than travelling by car for the entire journey. Reduced parking spaces for motorbikes (94 to around 35) and bicycles (84 to around 35) for the same reasons. The size of the cycle store has reduced from 20m long, 11m wide, and 6m high to approximately 15m long, 5m wide and 4m high, to reflect the reduced number of cycle spaces. The temporary bus terminal facility building is now approximately half of the size previously proposed to reflect the needs of the Project (reduced from 61m long, 27m wide and 10m high to approximately 29m long, 12m wide and 7m high.) The bus waiting pick up and drop off zone was for up to 40 buses at any one time but is now for 15 buses as the reduction in daily car parking demand has reduced the number of buses required. A new roundabout would be located near the existing junction 4 of the A55, which will be the main entrance to the Park and Ride. There will be a minimum average car share ratio of 1.2 workers per car, with an aspiration to achieve a minimum average of 1.5 workers per car. The maximum number of construction workers on the Park and Ride site at any one time has reduced from 120 to 70. There is now expected to be a maximum of 48 daily return bus movements from Dalar Hir to the Power Station Site. This is based on three staggered morning shifts and three staggered night shifts and a capacity of approximately 50 workers per bus. In addition to these daily movements there would be up to five bus movements to provide transport for construction workers living at the Site Campus travelling to and from their permanent place of residence for their weekend break. Buses will now return to the Park and Ride in between trips whereas it was previously assumed that buses would remain on-site during these periods. There is now expected to be 15 bus drivers and 10 members of staff once it is fully operational, which could generate up to 34 additional vehicle trips, assuming a worst case scenario of one worker per car. This is a reduction from the previous proposals for 40 bus drivers and 15 staff members. Page 134

145 Preliminary Environmental Information Dalar Hir Park and Ride facility The PEI tables 6-6 and 6-7 presented below consider key likely changes in environmental effects from that reported in the Stage Two Pre-Application Consultation PEI Report, as a result of the Project changes. The first table considers the construction phase and the second table the operational phase. In each case, a precautionary approach has been taken and effects are considered on a worst case basis. The first column of each table sets out the relevant environmental receptor involved and the change to the activity affecting that receptor since the Stage Two Pre-Application Consultation. The second column provides the assessment of the change of environmental effect since the Stage Two Pre-Application Consultation. The third column provides the preliminary conclusion on the likely residual environmental effect, following the Project changes. For details of environmental effects that have not changed since the Stage Two Pre-Application Consultation, please see Volume F of the Stage Two Pre-Application Consultation PEI Report. Table 6-6 Preliminary Environmental Information: Park and Ride facility Construction Receptor and change to activity since Stage Two Pre- Application Consultation Socio-economic Change of environmental effect since Stage Two Pre- Application Consultation Preliminary environmental information anticipated residual effect Receptor: Recruitment of construction workers and presence of construction workers in the local community. Stage Two: Construction workforce numbers was anticipated at 120 workers. What has changed: Construction workforce numbers are now anticipated at 70 workers, as the facility is simpler to construct. This was anticipated to be a minor beneficial effect in Stage Two. Although the number of construction workers has reduced, the beneficial effect remains. This is still likely to be minor beneficial effect. Page 135

146 Table 6-7 Preliminary Environmental Information: Park and Ride facility Operation Receptor and change to activity since Stage Two Pre- Application Consultation Socio-economic Receptor: Operation (recruitment of workforce and presence of workers in the local community). Stage Two: 40 bus drivers and 15 members of staff were anticipated to be employed during the operation phase. What has changed: There is now anticipated to be 15 bus drivers and 10 members of staff employed during the operation phase. Traffic and Transport Receptor: Road traffic from private vehicles (private cars) Stage Two: Dalar Hir had approximately 2,700 car parking spaces and onsite car parking provision was 500. What has changed: Dalar Hir provision has decreased to 1,900 spaces. On site car parking provision has increased to 1,900. Landscape and Visual Receptor: Anglesey-wide SLA, Anglesey LCA 5, recreational users local PRoWs and cycle routes. Stage Two: There were around 2,700 spaces Page 136 Change of environmental effect since Stage Two Pre- Application Consultation This was anticipated to be a minor beneficial effect in Stage Two. Although the number of operational workers has reduced, the beneficial effect remains. Preliminary environmental information anticipated residual effect This is still likely to be minor beneficial effect. See table 6-4 for details. See table 6-4 for details. This was anticipated to be a minor to moderate adverse effect in Stage Two. Although the number of car parks at the site has reduced, with a corresponding increase in the amount of the site This is still likely to be a minor to moderate adverse effect.

147 Receptor and change to activity since Stage Two Pre- Application Consultation for cars, 94 for motorbikes and 84 for bicycles proposed at the site. The temporary bus facility measured approximately 61m long, 27m wide and 10m high. The size of the cycle store was approximately 20m long, 11m wide, and 6m high. What has changed: The size of the facility has decreased to provide 1900 spaces for cars, 35 spaces for motorbikes and 35 spaces for bicycles. The temporary bus terminal facility has reduced in size to approximately 30m long, 12m wide and 7m high. The size of the cycle store has reduced to approximately 15m long, 5m wide and 4m high, to reflect the reduced number of cycle spaces. Change of environmental effect since Stage Two Pre- Application Consultation retained as greenfield land, It is not anticipated that there is any material change to the effects on landscape character and amenity on PRoW and cycle routes. Preliminary environmental information anticipated residual effect No changes to the intra-development effects or cumulative effects as recorded in the Stage Two PEI Report are anticipated as a result of these changes. More information on Horizon s approach to assessing such effects is set out in appendix C to this document. 6.7 Parc Cybi Logistics Centre A key component of the ITTS is to reduce HGV movements on the A5025 and to manage the controlled flow of vehicles to the Power Station Site. The provision of a temporary Logistics Centre would ensure that deliveries to the Power Station Site are appropriately managed to minimise impacts on the local road network, in particular the A5025. Stage Two Pre-Application Consultation feedback Feedback from the Stage Two Pre-Application Consultation highlighted the support of IACC for the proposal to locate the Logistics Centre at Parc Cybi. Page 137

148 This was countered by the preference of certain stakeholders (including Welsh Government and Gwynedd Council) to locate a logistics facility in Gwynedd in order to (among other things) reduce pressure on the road network. Some concern was expressed about the potential for HGV traffic to increase congestion on the A5025 in the event of an incident along that route. Horizon considers that Parc Cybi remains the most appropriate site for the Logistics Centre both in traffic terms and planning policy. Since the Stage Two Pre-Application Consultation, the Logistics Centre has been redesigned to ensure that in the event of an incident along the A5025 the site has the capacity to retain additional vehicles so that they do not materially add to any congestion. Site location The site location has not changed since the Stage Two Pre-Application Consultation and is set out below: Figure 6-5 Logistics Centre: indicative location Full details of the site and key characteristics are set out in chapter 13 of the Stage Two Pre-Application Main Consultation Document. Page 138

149 Logistics Centre description The preferred proposals for the Logistics Centre comprise: welfare and security building; security gatehouse at the entrance/exit of site; covered inspection bay; laydown/storage areas; HGV scanner; parking spaces for 100 HGVs, Medium Goods Vehicles (MGVs) and Light Goods Vehicles (LGVs); approximately 12 staff parking spaces (including disabled); and security features including paladin fencing (2.4m high) with controlled access barriers and systems, CCTV, and lighting. The internal layout of the site is designed to support a clear and swift flow of personnel and materials through each of the areas. HGV routing and parking has evolved since the Stage Two Pre-Application Consultation to improve the flow of movement through the site, reflect changing security requirements and minimise the need for reversing. The welfare and security building would be a single storey facility comprising of modular units to provide the area of accommodation space required. It would be located along the west edge of the site and outside of the direct line of sight of the Trefignath Burial Chambers Scheduled Monument. The security gatehouse at the entrance of the site will be a small single storey building to provide weather protection to the security staff. A covered inspection bay is proposed to provide a covered area for the inspection of HGVs. The warehouse facility is no longer required as deliveries would no longer be consolidated on-site (see below for details). The currently proposed landscaping and boundary treatment comprises maintaining a 1.5m grassed boundary buffer zone around the site and proposing a 2.4m high mesh panel security fence. This approach is appropriate to the context of the site as an industrial development plot, surrounded by future industrial development plots which would come forward under the wider Parc Cybi proposals. It is anticipated that construction of the Logistics Centre would commence in 2019 and would be operational between 2020 and up to At the end of the construction period, the Logistics Centre would be made available for an alternative use such as warehousing, either in connection with the Project or another appropriate employment use. If further planning permission is required for any external changes then this would be applied for at the time. The architectural design of the proposed structures on the site are yet to be decided. The overall architectural strategy for the Logistics Centre at Parc Cybi, responds to the intention to deliver a high quality employment unit, consistent with the current and emerging employment nature of the area. A restricted natural palette would be adopted for all the buildings on-site, helping to link the buildings visually, and be unimposing with their Page 139

150 surroundings, whilst consistent with the employment nature of the wider area. Figure 6-6 Logistics centre: indicative masterplan Parc Cybi Logistics Centre: aerial sketch Page 140