Damhead Creek 2 Environmental Statement 15
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DAMHEAD CREEK 2 ENVIRONMENTAL STATEMENT VOLUME 1 JUNE 2009 CONTENTS Page LIST OF ABBREVIATIONS SECTION 1 1 EXECUTIVE SUMMARY 1 1.1 Introduction 3 1.2 The Developer 4 1.3 Need for the Project 4 1.4 The Proposed Development 5 1.5 The Environmental Impact Assessment 7 SECTION 2 9 INTRODUCTION 9 2.1 The Proposed Development 11 2.2 The existing Damhead Creek CCGT Power Station 13 2.3 Introduction to ScottishPower 14 2.4 Overview of Consenting Process 14 2.5 Damhead Creek 2 Environmental Statement 15 SECTION 3 17 RATIONALE FOR DEVELOPMENT 17 3.1 Background 19 3.2 Current Power Generation Capacity and Electricity Demand 19 3.3 National Grid Guidance for Locating New Power Plant 20 3.4 History of Power Generation in Local Area 21 SECTION 4 23 LEGISLATIVE PLANNING POLICY CONTEXT 23 4.1 Overview 25 4.2 Legislative Context 25 4.3 National Policy 26 4.4 Regional Policy 32 4.5 Kent and Medway Structure Plan 37 4.6 Medway Local Plan 41 Damhead Creek 2 - ES Volume 1 June 2009 SECTION 5 47 DESCRIPTION OF THE DEVELOPMENT 47 5.1 Operation of Damhead Creek 2 49 5.2 Construction of Damhead Creek 2 54 SECTION 6 59 DESCRIPTION OF DEVELOPMENT SITE AND ITS SURROUNDINGS 59 6.1 Development Site Description 61 6.2 Development Site Surroundings 62 6.3 Other Developments with Potential Cumulative Impacts 63 SECTION 7 67 SITE SELECTION AND ALTERNATIVES 67 7.1 Site Selection 69 7.2 Alternatives 69 SECTION 8 77 EIA METHODOLOGY 77 8.1 Overview 79 8.2 Environmental Impact Assessment Project Team 79 8.3 Purpose of the Environmental Impact Assessment 79 8.4 Methodology of the Environmental Impact Assessment 79 8.5 Presentation of the Environmental Impact Assessment 81 SECTION 9 83 STAKEHOLDER CONSULTATIONS AND ADDITIONAL STUDIES 83 9.1 Overview 85 9.2 Scoping of the Project 85 9.3 Residents Information Days 85 9.4 Additional Studies 86 9.5 Future Consultations 89 SECTION 10 91 AIR QUALITY 91 10.1 Summary 93 10.2 Introduction 94 Damhead Creek 2 - ES Volume 1 June 2009 10.3 Key Planning Policies 94 10.4 Assessment Methodology and Significance Criteria 94 10.5 Receptors and Baseline Conditions 96 10.6 Potential Impacts 99 10.7 Mitigation Measures and Monitoring Programmes 110 10.8 Assessment of Residual Effects 112 10.9 Assessment of Cumulative Effects 113 SECTION 11 119 NOISE AND VIBRATION 119 11.1 Summary 121 11.2 Introduction 121 11.3 Key Planning Policies 122 11.4 Assessment Methodology and Significance Criteria 122 11.5 Receptors and Baseline Conditions 123 11.6 Potential Impacts 126 11.7 Mitigation 130 11.8 Assessment of Residual Effects 132 11.9 Assessment of Cumulative Effects 132 SECTION 12 135 LANDSCAPE AND VISUAL 135 12.1 Summary 137 12.2 Introduction 137 12.3 Key Planning Policies 137 12.4 National Context 139 12.5 Local Context 140 12.6 Assessment Methodology and Significance Criteria 141 12.7 Baseline Conditions and Receptors 144 12.8 Potential Impacts 147 12.9 Assessment of Effects 149 12.10 Mitigation 152 12.11 Assessment of Residual Effects 153 12.12 Assessment of Cumulative Effects 157 Damhead Creek 2 - ES Volume 1 June 2009 SECTION 13 159 ECOLOGY 159 13.1 Summary 161 13.2 Introduction 162 13.3 Key Planning Policies 162 13.4 Assessment Methodology and Significance Criteria 163 13.5 Baseline Conditions and Receptors 170 13.6 Predicted Changes in Baseline 192 13.7 Potential Impacts 192 13.8 Mitigation 220 13.9 Assessment of Residual Effects 225 13.10 Assessment of Cumulative Effects 228 SECTION 14 237 WATER QUALITY 237 14.1 Summary 239 14.2 Introduction 239 14.3 Key Planning Policies 240 14.4 Assessment Methodology and Significance Criteria 241 14.5 Baseline Conditions and Receptors 241 14.6 Potential Impacts 242 14.7 Mitigating Measures and Monitoring Programmes 245 14.8 Assessment of Residual Effects 247 14.9 Assessment of Cumulative Effects 247 SECTION 15 249 GEOLOGY, HYDROLOGY AND LAND CONTAMINATION 249 15.1 Summary 251 15.2 Introduction 252 15.3 Key Planning Policies 252 15.4 Assessment Methodology and Significance Criteria 252 15.5 Baseline Conditions and Receptors 255 15.6 Potential Impacts 262 15.7 Mitigating Measures and Monitoring Programmes 265 15.8 Residual Impacts 267 15.9 Cumulative Impacts 267 Damhead Creek 2 - ES Volume 1 June 2009 SECTION 16 269 TRAFFIC AND INFRASTRUCTURE 269 16.1 Summary 271 16.2 Introduction 271 16.3 Key Planning Policies 272 16.4 Assessment Methodology and Significance Criteria 272 16.5 Baseline Conditions and Receptors 274 16.6 Potential Impacts 275 16.7 Mitigation 278 16.8 Assessment of Residual Effects 278 16.9 Assessment of Cumulative Effects 278 SECTION 17 281 CULTURAL HERITAGE 281 17.1 Summary 283 17.2 Introduction 283 17.3 Key Planning Policies 284 17.4 Assessment Methodology and Significance Criteria 284 17.5 Baseline Conditions and Receptors 287 17.6 Archaeological Potential of the Damhead Creek 2 Site 297 17.7 Potential Impacts 300 17.8 Mitigation 300 17.9 Assessment of Residual Effects 301 17.10 Assessment of Cumulative Effects 302 SECTION 18 303 SOCIO-ECONOMICS 303 18.1 Summary 305 18.2 Introduction 305 18.3 Key Planning Policies 305 18.4 Assessment Methodology and Significance Criteria 306 18.5 Baseline Conditions and Receptors 306 18.6 Potential Impacts 307 18.7 Mitigation 309 18.8 Assessment of Residual Effects 309 18.9 Assessment of Cumulative Effects 310 Damhead Creek 2 - ES Volume 1 June 2009 SECTION 19 311 DAMHEAD CREEK 2 CARBON CAPTURE READINESS 311 19.1 Overview 313 19.2 Introduction 313 19.3 Carbon Capture Technology and Layout 314 19.4 Transport Corridors and Storage Areas 315 19.5 Assessment Summary 316 19.6 Submission of Further Information 316 SECTION 20 317 SUMMARY OF MITIGATION AND MONITORING 317 20.1 Summary 319 20.2 Air Quality 319 20.3 Noise and Vibration 321 20.4 Landscape and Visual 322 20.5 Ecology 324 20.6 Water Quality 329 20.7 Geology Hydrology and Land Contamination 331 20.8 Traffic and Infrastructure 333 20.9 Cultural Heritage 334 20.10 Socio-Economics 334 ____________________________ VOLUME 2 A. INFORMATION ON VIEWING THE ES Appendix A B. PLANNING POLICIES Appendix B C. SCOPING REQUEST Appendix C D. SCOPING OPINION Appendix D E. STATEMENT OF COMMUNITY INVOLVEMENT / CONSULTATION Appendix E F. BASELINE NOISE REPORT Appendix F G. ECOLOGICAL REPORTS Appendix G H. FLOOD RISK ASSESSMENT Appendix H I GROUND INVESTIGATION REPORT Appendix I J. GAZETTEER OF ARCHAEOLOGICAL INTERESTS Appendix J K. ARCHAEOLOGICAL BACKGROUND Appendix K ____________________________ Damhead Creek 2 - ES Volume 1 June 2009 VOLUME 3 FIGURES ____________________________ Damhead Creek 2 - ES Volume 1 June 2009 LIST OF ABBREVIATIONS ACC air cooled condensers AERMOD American Meteorology Society/Environmental Protection Agency Regulatory Model ADMS air quality software AL Advisory Leaflet ALC Agricultural Land Classification ALLI Areas of Local Landscape Importance AOD above ordnance datum APIS Air Pollution Information System AQMA air quality management areas AQMS Air Quality Management System AQS Air Quality Strategy BAP Biodiversity Action Plan BAT Best Available Technique BBS breeding bird survey BERR Department for Business, Enterprise and Regulatory Reform BGS British Geological Survey BH borehole BSI British Standards Institute BTO British Trust for Ornithology °C degree Celsius CC carbon capture CCGT combined cycle gas turbine CDM ConDaM (Regulations) Construction (Design and Management) Regulations 2007 CEGB Central Electricity Generating Board CEMP Construction Environmental Management Plan CHP combined heat and power CLEA Contaminated Land Exposure Assessment CO Carbon Monoxide CO2 Carbon dioxide COMAH Control of Major Accident Hazards COSHH Control of Substances Hazardous to Health dB decibels DC Direct Current DCS distributed control system DEFRA Department for Environment, Food & Rural Affairs DETR Department of Environment Transport and the Regions DFO Distillate Fuel oil DfT Department for Transport’s DHC I Existing Damhead Creek CCGT Power Station DLN dry low NOx DoE Department of the Environment DWS drinking water standards EA Environment Agency EAL Environmental Assessment Level EC European Commission EC ETS European Community Emissions Trading Scheme EIA Environmental Impact Assessment EMMP Ecological Monitoring and Management Plan EMP environmental management plan EMS Environmental Management System EPR Environmental Permitting (England and Wales) Regulations 2007 ES Environmental Statement ESA Environmentally Sensitive Area Damhead Creek 2 - ES Volume 1 June 2009 ETS Emissions Trading Scheme EU European Union EQS Environmental quality Standards FGD flue gas desulphurization g/MWh gram per megawatt hour GOSE Government Office for the South East g/s gram per second GSP Grid Supply Point GT generator transformer GW gigawatt ha hectare HER Kent Historic Environment Record HGV heavy goods vehicle HRSG heat recovery steam generator HSE Health and Safety Executive IEEM Institute of Ecology and Environmental Management IEMA Institute of Environmental Management and Assessment IFA Institute of Field Archaeologists IPPC Integrated Pollution Prevention and Control JNCC Joint Nature Conservancy Council K Kelvin Kg/MWh kilograms per megawatt hour kJ/kg kilojoules per kilogram km kilometre km2 square kilometre KMBRC Kent & Medway Biological Records Centre kV kilovolt KWT Kent Wildlife Trust L lesser of the height of the building LAQM Local Air Quality Management LBAP Local Biodiversity Action Plan LCPD Large Combustion Plant Directive l litre l/sec litre per second LCV lower calorific value LLCA Local Landscape Character Area LPRIA Late Pre-Roman Iron Age m metre m/s metres per second m3/h cubic