Strategic Environmental Assessment of United Utilities’ Revised Draft Drought Plan 2017
Total Page:16
File Type:pdf, Size:1020Kb
United Utilities Strategic Environmental Assessment of United Utilities’ Revised Draft Drought Plan 2017 Environmental Report January 2017 THIS PAGE IS INTENTIONALLY BLANK Client: United Utilities Title: Strategic Environmental Assessment of United Utilities’ Revised Draft Drought Plan 2017: Environmental Report Project No: CC1355 Date of Issue: 09 January 2017 Version No: 1.3 Produced By Authorised for Release By ……………………………….. …………………………………… Dr Anne Fairhead Liz Baker Senior Environmental Scientist Managing Consultant CONTACT DETAILS CASCADE CONSULTING Enterprise House Manchester Science Park Lloyd St North Manchester M15 6SE Tel: 0161 227 9777 Fax: 0161 227 1777 United Utilities SEA of United Utilities’ Revised Draft Drought Plan 2017 Environmental Report Final THIS PAGE IS INTENTIONALLY BLANK Cascade Consulting United Utilities SEA of United Utilities’ Revised Draft Drought Plan 2017 Environmental Report Final Contents Non-Technical Summary 1 Introduction ............................................................................................... 1 1.1 Background and Purpose of Report .................................................................................. 1 1.2 Application of SEA to Drought Planning ......................................................................... 2 1.3 UU’s Water Supply System, Water Resource Management and Drought Planning ....... 6 1.4 UU’s Drought Planning Process and Drought Options .................................................. 10 1.5 Drought Permit/Order Environmental Studies ............................................................. 16 1.6 Stages of SEA Process ..................................................................................................... 17 1.7 Structure of the Environmental Report .......................................................................... 19 1.8 Consultation Process ..................................................................................................... 20 2 Baseline and Context ................................................................................ 22 2.1 Introduction ................................................................................................................... 22 2.2 Review of Policies, Plans and Programmes ................................................................... 22 2.3 Review of Baseline ......................................................................................................... 33 2.4 Summary of Key Issues .................................................................................................. 58 3 Methodology ............................................................................................ 61 3.1 Introduction .................................................................................................................... 61 3.2 Assessment Methodology and SEA Framework ............................................................. 61 3.3 Primary Assessment .......................................................................................................65 3.4 Secondary, Cumulative and Synergistic Environmental Effects Assessment ................ 77 3.5 Limitations of the Study ................................................................................................. 79 4 Assessment of Drought Options .............................................................. 80 4.1 Drought Options Assessed ............................................................................................. 80 4.2 Assessment of Schemes Against SEA Objectives ........................................................... 80 4.3 Supply Side Options ....................................................................................................... 80 4.4 Demand Side Options .................................................................................................... 84 4.5 Drought Permit/Order Options ..................................................................................... 86 4.6 Summary ......................................................................................................................... 91 5 Cumulative Effects Assessment ................................................................ 92 5.1 Introduction ................................................................................................................... 92 5.2 Cumulative Effects With UU’s Existing Abstraction Licences ...................................... 92 5.3 Cumulative Effects Between Drought Options (Intra-Zone) ......................................... 98 5.4 Inter-Zone Cumulative Effects Between Drought Options .......................................... 103 5.5 Demand Management .................................................................................................. 104 5.6 River Eden Schemes ..................................................................................................... 104 5.7 UU’s WRMP Schemes ................................................................................................... 105 5.8 Environment Agency Drought Plans ............................................................................ 106 5.9 Other Water Company Drought Plans ..........................................................................108 5.10 National Policy Statements ........................................................................................... 110 6 Mitigation and Monitoring ...................................................................... 111 6.1 Overview ........................................................................................................................ 111 6.2 Mitigation....................................................................................................................... 111 6.3 Monitoring .................................................................................................................... 112 7 Summary ................................................................................................. 113 Cascade Consulting United Utilities SEA of United Utilities’ Revised Draft Drought Plan 2017 Environmental Report Final List of Figures Figure 1.1 SEA Screening route of UU’s Revised Draft Drought Plan 2017 through Figure 2 flow diagram from ODPM (2005) Guidelines Figure 1.2 United Utilities regional supply system Figure 2.1 Designated conservation sites in North West England and North Wales Figure 2.2 Designated conservation sites in Wales Figure 2.3 Agricultural land classifications Figure 2.4 Landscape character designations Figure 3.1 Legend for colour coding of residual impact significance Figure 5.1 Legend for colour coding the cumulative assessments of UU’s drought options with UU’s existing abstraction licences Figure 5.2 Cumulative impacts matrix: Integrated Resource Zone Figure 5.3 Cumulative impacts matrix: West Cumbria Resource Zone Figure 5.4 Cumulative impacts matrix: North Eden Resource Zone Figure 5.5 Cumulative impacts matrix: demand management measures List of Tables Table 1.1 Supply side drought options included in the SEA and HRA Table 1.2 Demand side options (all water resource zones) Table 1.3 Drought permit/order options (all water resource zones) Table 1.4 Drought permit/order sites Environmental Assessments Table 1.5 SEA stages and tasks Table 2.1 Policy, plans and programmes reviewed Table 2.2 Key policy messages Table 2.3 Level of qualifications Table 2.4 Water use Table 2.5 North West England energy demand by sector (2009) Table 2.6 Dwellings in the North West of England by tenure (2007) Table 2.7 Overall ecological status of surface waterbodies (2015) Table 2.8 2014 Mandatory compliance results for bathing waters in the UK Table 2.9 Agricultural land classification Table 2.10 Key sustainability issues arising from the baseline assessment Table 3.1 SEA objectives Table 3.2 Example of a SEA appraisal framework table completed for each drought option Table 3.3 Assessment scale used to advise evaluation of each drought option against the objectives Table 3.4 Example of a visual evaluation matrix Table 4.1 Visual evaluation matrix summary for supply side options Table 4.2 Visual evaluation matrix summary for demand side options Table 4.3 Visual evaluation matrix summary for drought permit/order options Table 5.1 Summary of potential cumulative effects of supply side and drought permit/order options and existing UU abstraction licences Table 7.1 Visual evaluation matrix summary of SEA of UU’s drought options List of Appendices Appendix A Summary of Construction Activities Required for Supply-Side Drought Options Appendix B Environment Agency Drought Option Forms Appendix C Statutory Consultee Responses to the 2016 SEA Scoping Report Appendix D Review of Plans and Programmes Appendix E SEA Appraisal Tables Appendix F Figures Cascade Consulting United Utilities SEA of United Utilities’ Revised Draft Drought Plan 2017 Environmental Report Final NON-TECHNICAL SUMMARY Introduction Under the Water Act 2014, United Utilities (UU) is required to prepare and update a Drought Plan every five years. UU published their current statutory Drought Plan on the 17th July 2014. On 26 January 2016, UU published an updated environmental assessment report for the Crummock Water drought permit option in West Cumbria, which resulted in a reduction to the volume of water available for abstraction from this reservoir. UU believe that this change, in- combination with the development of a new source of water, the South Egremont boreholes