Agenda Reports Pack (Public) 20/12/2010, 20.00
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Supplementary Committee Agenda Local Development Framework Cabinet Committee Monday, 20th December, 2010 Place: Council Chamber Civic Offices, High Street, Epping Time: 8.00 pm Democratic Services: Gary Woodhall (The Office of the Chief Executive) Tel: 01992 564470 Email: [email protected] 5. STRATEGIC FLOOD RISK ASSESSMENT (Pages 51 - 96) (Director of Planning & Economic Development) To consider the attached Appendix, being the full version of the Flood Assessment. A copy of the full report has been placed in the Members’ Room, distributed to all members of the Cabinet Committee and is available on the Council’s website as a supplementary agenda for this meeting. If any other Member requires a hardcopy of the full report then please contact either the Responsible Officer or Democratic Services Officer listed on the report before the date of the meeting. 7. ANNUAL MONITORING REPORT 2009/10 (Pages 97 - 160) (Director of Planning & Economic Development) To consider the attached Appendix, being the full version of the Monitoring Report. A copy of the full Monitoring Report has been placed in the Members’ Room, distributed to all members of the Cabinet Committee and is available on the Council’s website as a supplementary agenda for this meeting. If any other Member requires a hardcopy of the full monitoring report then please contact either the Responsible Officer or Democratic Services Officer listed on the report before the date of the meeting. 1 This page is intentionally left blank Agenda Item 5 Level 1 Strategic Flood Risk Assessment Epping Forest District Council Harlow Council March 2010 Page 51 1 Strategic Flood Risk Assessment Final Report Issue Date: xxx Prepared by: Ben Meuli Checked by: xxx (EFDC), xxx (Harlow) Approved by: xxx (EFDC), xxx (Harlow) Version History Version xx.xx Revised xx.xx.xx Page 52 2 CONTENTS 1. INTRODUCTION ................................................................................................5 1.1 OVERVIEW .....................................................................................................................5 1.2 AIMS AND OBJECTIVES ....................................................................................................5 1.3 THE SEQUENTIAL AND EXCEPTION TESTS....................................................................6 2. FLOOD RISK IN EPPING FOREST AND HARLOW DISTRICTS.......................8 2.1 STUDY AREA ..................................................................................................................8 2.1.1 Epping Forest ..................................................................................................................8 2.1.2 Harlow..............................................................................................................................9 2.2. GEOGRAPHY, GEOLOGY AND RIVER CATCHMENTS.............................................................9 2.2.1 Epping Forest ...................................................................................................................9 2.2.2 Harlow............................................................................................................................ 10 2.3 HISTORY OF FLOODING .................................................................................................11 2.3.1 Epping Forest ................................................................................................................. 11 2.3.2 Harlow............................................................................................................................ 12 3. POLICY FRAMEWORK....................................................................................13 3.1 OVERVIEW ...................................................................................................................13 3.2 OBJECTIVE ..................................................................................................................13 3.3 THE EUROPEAN POLICY FRAMEWORK ............................................................................13 3.3.1 The Water Framework Directive 2000.......................................................................... 13 3.3.2 The Habitats Directive 1992 .......................................................................................... 13 3.4 NATIONAL POLICY AND LEGISLATION IN ENGLAND ............................................................13 3.4.1 The Planning and Compulsory Purchase Act 2004....................................................... 13 3.4.2 Future Water 2007......................................................................................................... 14 3.4.3 The Town and Country Planning (Flooding) (England) Direction 2007 ...................... 14 3.4.4 The Town and Country Planning (General Permitted Development)(Amendment) (No. 2) England) Order 2008 Guidance on the Permeable Surfacing of Front Gardens – 10 September 2008...................................................................................................................... 14 3.4.5 Surface Water Management Plan (SWMP) Technical Guidance – Living draft version 1 (February 2009)................................................................................................................... 14 3.4.6 The Flood Risk Regulations 2009.................................................................................. 15 3.4.7 The Flood and Water Management Act (2010)............................................................. 15 3.4.8 Planning policy statements ............................................................................................ 16 3.4.9 Planning Policy Statement 1: Delivering Sustainable Development (PPS1) and PPS: Planning and Climate Change – Supplement to PPS1 (2007) and Planning Policy Statement Consultation: Planning for a Low Carbon Future in a Changing Climate (March 2010).... 16 3.4.10 Planning Policy Statement 3: Housing (PPS3) (2007) ................................................. 16 3.4.11 Planning Policy Statement 25: Development and Flood Risk (PPS 25) (2010) Planning Policy Statement 25: Development and Flood Risk - Practice Guide – Published 7 December 2009 ........................................................................................................................................ 16 3.5 REGIONAL PLANNING POLICY ........................................................................................17 3.5.1 Thames Catchment Flood Management Plan – Managing flood risk (2009) ............... 17 3.5.2 Rye Meads Water Cycle Strategy.................................................................................. 17 3.6 LOCAL PLANNING POLICY..............................................................................................17 3.6.1 EFDC Local Plan (1998)................................................................................................ 17 3.6.2 Replacement Harlow Local Plan (2006) ......................................................................... 19 4. STRATEGIC FLOOD RISK ASSESSMENT.....................................................21 4.1 OVERVIEW...................................................................................................................21 4.2 LIST OF MAPS ..............................................................................................................21 4.3 LIST OF DATA SOURCES ................................................................................................21 4.4 FLUVIAL FLOODING.......................................................................................................22 4.5 SURFACE WATER FLOODING ..........................................................................................26 4.6 GROUNDWATER FLOODING............................................................................................26 4.7 SEWER FLOODING ........................................................................................................27 Page 53 3 4.8 FLOOD INFRASTRUCTURE AND ARTIFICIAL SOURCES OF FLOODING ....................................27 4.8.1 Epping Forest District..................................................................................................... 28 4.8.2 Harlow............................................................................................................................ 30 4.9 RESIDUAL RISK ............................................................................................................30 4.10 CLIMATE CHANGE.......................................................................................................31 5. EMERGENCY PLANNING ...............................................................................32 5.1 CRITICAL INFRASTRUCTURE ..........................................................................................32 5.2 FLOOD WARNING..........................................................................................................32 6. DEVELOPMENT GUIDANCE...........................................................................34 6.1 REQUIREMENTS FOR SITE SPECIFIC FLOOD RISK ASSESSMENT .........................................34 6.2 DEVELOPMENT WITHIN EPPING FOREST DISTRICT AND EFDC FLOOD RISK ASSESSMENT ZONES 35 6.3 SUDS – SUSTAINABLE DRAINAGE SYSTEMS...................................................................36 7. RECOMMENDATIONS.....................................................................................38 7.1 CLIMATE CHANGE.........................................................................................................38