HRA Report (Including Development Consent Order Appropriate Assessment)
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Glyn Rhonwy Pumped Storage Development Consent Order No Significant Effects Report PINS Reference EN010072 Document No. 5.03 Regulation 5(2)(g) Author AECOM Revision Date Description 1 March 2021 Includes AA Glyn Rhonwy Pumped Storage 5.03 HRA Report (including Development Consent Order Appropriate Assessment) 1 INTRODUCTION .................................................................................................. 4 2 METHODOLOGY ............................................................................................... 27 3 IDENTIFICATION OF POTENTIAL EFFECTS AND EUROPEAN SITES ......... 30 4 SCREENING ASSESSMENT ............................................................................. 52 5 APPROPRIATE ASSESSMENT ........................................................................ 68 6 IN-COMBINATION EFFECTS ............................................................................ 77 7 CONCLUSION ................................................................................................... 78 APPENDIX A: TABLES SHOWING THE ASSESSED EUROPEAN SITES QUALIFYING FEATURES, CONSERVATION OBJECTIVES, SITE CONDITION AND THREATS TO SITE INTEGRITY .................................................................... 83 APPENDIX B: SCREENING MATRICES .............................................................. 211 APPENDIX C: APPROPRIATE ASSESSMENT MATRICES ................................ 212 APPENDIX D: OPERATIONAL DISCHARGES TECHNICAL NOTE ................... 213 March 2021 Glyn Rhonwy Pumped Storage 5.03 HRA Report (including 1 Development Consent Order Appropriate Assessment) EXECUTIVE SUMMARY In 2016 Snowdonia Pumped Hydro (SPH) submitted an application for a Development Consent Order (DCO) for a 99.9 MW pumped storage facility at the Glyn Rhonwy site (the “Development”). The Glyn Rhonwy Pumped Storage Generating Station Order 2017was made in March 2017. SPH is now applying for a non-material amendment to the DCO in order to extend the timeframe for implementation. No aspects of the scheme have changed since the DCO was made other than the timeframe for implementation. Under the Conservation of Habitats and Species Regulations 2017 (as amended), the Welsh Ministers, in determining the applicaiton for a non- material change, are required to review whether the Development has the potential for Likely Significant Effects (LSEs) on sites with designations, Special Protection Areas (SPAs), Special Areas of Conservation (SACs) and Ramsar sites (all hereafter referred to as European sites). Where LSEs are identified, the Welsh Ministers are required to make an Appropriate Assessment (AA) of the potential effects of the change sought to the Development on European site conservation objectives. As part of the preparation of the original DCO application in 2016, SPH completed a Habitats Regulations Assessment (HRA) to ascertain whether the Development has the potential for Likely Significant Effects on European sites within the potential impact area (in this case 30km). In order to assist the Welsh Ministers as competent authority in determining the change application, that HRA has been reviewed and updated, including having regard to now current case law; the updated information is presented in this report. Following consultation with Gwynedd Council and Natural Resources Wales (NRW), the following European sites were assessed: · Afon Gwyrfai a Llyn Cwellyn SAC; · Eryri / Snowdonia SAC; March 2021 Glyn Rhonwy Pumped Storage 5.03 HRA Report (including 2 Development Consent Order Appropriate Assessment) · Y Fenai a Bae Conwy / Menai Strait and Conwy Bay SAC; · Glynllifon SAC; · Glannau Mon: Cors heli / Anglesey Coast: Saltmarsh SAC; · Y Twyni o Abermenai i Aberffraw / Abermenai to Aberffraw Dunes SAC; · Coedydd Derw a Safleoedd Ystlumod Meirion / Meirionnydd Oakwoods and Bat Sites SAC; · Liverpool Bay / Bae Lerpwl (Wales) SPA; · Corsydd Môn a Llyn / Anglesey and Llyn Fens Ramsar and SAC; · Pen Llyn a'r Sarnau / Lleyn Peninsula and the Sarnau SAC; and, · Ynys Seiriol / Puffin Island SPA. Anglesey Terns SPA is the only new European site designated since the 2016 HRA was undertaken. It has been scoped out on the basis that it is a marine site in Caernarfon Bay on the opposite side of the Menai Strait and therefore unconnected to the Development. In relation to the assessment of in-combination effects on the European sites, in agreement with NRW and Gwynedd Council it was determined that there there were no projects or plans identified in the vicinity of the Development. This remains the case. The only projects that were identified for discussion in the ‘in combination’ effects section were Wylfa Newydd Nuclear Power Station and Bontnewydd Bypass. However, the Wylfa Newydd project has been cancelled and the Bontnewydd Bypass is now under construction. No other projects have been identified for consideration ‘in combination’. This report has been updated to reflect the European Court of Justice ruling (People Over Wind and Sweetman v Coillte Teoranta (case C-323/17), under which measures intended to avoid or reduce the harmful effects of a proposed project on a European site (i.e. mitigation measures) may not be taken into account by competent authorities at the Likely Significant Effects stage of HRA. This report has therefore been expanded to include an Appropriate Assessment. It is noted that case law has established March 2021 Glyn Rhonwy Pumped Storage 5.03 HRA Report (including 3 Development Consent Order Appropriate Assessment) appropriate assessment is not a technical term; it means whatever further information is appropriate to close out the assessment following determination of Likely Significant Effects. Where the only reason for now requiring the Appropriate Assessment stage of a HRA report is the procedural fact that mitigation was previously taken into account at the LSE stage, little to no new analysis may be required; it is therefore essentially a restructuring to include a second stage.. If mitigation is sufficient to ensure no Likely Significant Effect will arise (i.e. that the mere possibility of an effect would be rendered null by such mitigation) then it is also sufficient to ensure there will be no adverse effect on site integrity (i.e. that the ability of European sites to achieve their conservation objectives will not be impaired). A series of mitigation measures were identified in 2016 and were partly relied upon to draw a conclusion of no adverse effects on integrity; notably: · Mitigation measures for roosting lesser horseshoe bat (as required within the European Protected Species mitigation licence from NRW); and · Measures detailed within the Code of Construction Practice (CoCP) for the avoidance of impacts on Afon Gwyrfai a Llyn Cwellyn SAC. With those measures in place it is now concluded that the Development will not have an adverse effect on the integrity of any European site. This matches the conclusion drawn in 2016/17 when the DCO was made and the same mitigation was invoked to draw a conclusion of no Likely Significant Effect. Limited information is available on the electrical connection and therefore this has not been assessed as the consenting of this connection will be outside this DCO. This is identical to the approach taken to assessment in 2016/17 when the DCO was made. March 2021 Glyn Rhonwy Pumped Storage 5.03 HRA Report (including 4 Development Consent Order Appropriate Assessment) 1 INTRODUCTION 1.1 Introduction 1.1.1 In 2016 Snowdonia Pumped Hydro submitted an application for a Development Consent Order (DCO) for a 99.9 MW pumped storage facility at the Glyn Rhonwy site (the “Development”). The Glyn Rhonwy Pumped Storage Generating Station Order 2017 was granted in March 2017. SPH is now applying for a non-material change to the DCO in order to extend the timeframe for implementation. No aspects of the scheme have changed since the DCO was made other than the timeframe for implementation. 1.1.2 Under the Conservation of Habitats and Species Regulations 2017 (as amended), the Welsh Ministers are required to ascertain whether the Development has the potential to affect the protected characteristics of certain designated sites, including Special Protection Areas (SPAs), Special Areas of Conservation (SACs) and Ramsar sites (all hereafter referred to as European sites). 1.1.3 The Planning Inspectorate (PINS) Advice Note Ten Habitats Regulations Assessment relevant to nationally significant infrastructure projects (PINS, 2017) states that if as a result of Habitats Regulations Assessment (HRA) Screening the developer concludes that there is a Likely Significant Effect (LSE) on a European site, sufficient information must be provided with the DCO application to allow the Competent Authority to assess and review the information and make its own determination on LSEs and residual effects. A developer should provide reasons why an Appropriate Assessment (AA) will, or will not be required and provide confirmation from the relevant nature conservation body (in this case Natural Resources Wales (NRW)) that this conclusion is supported. March 2021 Glyn Rhonwy Pumped Storage 5.03 HRA Report (including 5 Development Consent Order Appropriate Assessment) 1.1.4 If it cannot be ruled out that there will be LSEs on a European site, an AA is required. The AA considers if potential effects will adversely affect the integrity of the European site in view of its conservation objectives. 1.1.5 An HRA Report was first produced in 2016 to support the DCO (made in 2017). For the non-material