Severn Trent Water Ltd Draft Water Resources Management Plan 2019
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Severn Trent Water Ltd Draft Water Resources Management Plan 2019 Environmental Report for Strategic Environmental Assessment ___________________________________________________ Draft Report for Severn Trent Water Ltd Ricardo Energy & Environment Severn Trent Water Ltd | i Customer: Customer Contact: Severn Trent Water Ltd Dr. Mohsin Hafeez Ricardo Energy & Environment Customer reference: Enterprise House, Lloyd Street North, Manchester, United Kingdom. M15 6SE ED62813 Confidentiality, copyright & reproduction: e: [email protected] This report is the Copyright of Severn Trent Water/Ricardo Energy & Environment. It has been prepared by Ricardo Energy & Environment, a trading name of Ricardo-AEA Ltd, Authors: under contract to Severn Trent Water Ltd. The contents of this report may not be reproduced in Edward Hargreaves and Mohsin Hafeez whole or in part, nor passed to any organisation or person without the specific prior written Approved By: permission of Severn Trent Water Ltd. Ricardo John Sanders Energy & Environment accepts no liability whatsoever to any third party for any loss or Date: damage arising from any interpretation or use of the information contained in this report, or 29 November 2017 reliance on any views expressed therein. Ricardo Energy & Environment reference: Ref: ED62813- Issue Number 2 Ricardo in Confidence Ref: Ricardo/ED62813/Issue Number 2 Ricardo Energy & Environment Draft WRMP19 SEA Environmental Report | i Table of contents Non-Technical Summary ................................................................................................... iii 1 Introduction ................................................................................................................ 1 1.1 Background and Purpose of Report .................................................................................. 1 1.2 Application of SEA to Water Resource Management Planning ........................................ 1 1.2.1 Overview of Strategic Environmental Assessment .................................................. 1 1.2.2 Requirement for SEA and HRA of Severn Trent Water’s Water Resources Management Plan ...................................................................................................................... 2 1.3 Severn Trent Water Supply Area and Water Resources Management Planning ............. 2 1.3.1 Severn Trent Water Supply Area ............................................................................. 2 1.3.2 Area under consideration for the SEA ...................................................................... 6 1.3.3 Temporal scope of the SEA ..................................................................................... 6 1.4 Severn Trent’s Water Resource Management Planning Process ..................................... 8 1.4.1 Overview and Timetable........................................................................................... 8 1.4.2 Water Resource Management Plan Development ................................................... 9 1.4.3 Severn Trent Water’s Feasible List of Options....................................................... 10 1.5 Stages of Strategic Environmental Assessment ............................................................. 13 1.6 Structure of the Environmental Report ............................................................................ 15 1.7 Consultation ..................................................................................................................... 15 2 Policy context .......................................................................................................... 17 2.1 Introduction ...................................................................................................................... 17 2.2 Review of Policies, Plans and Programmes ................................................................... 17 3 Environmental Baseline Review ............................................................................. 21 3.1 Introduction ...................................................................................................................... 21 3.2 Limitations of the data and assumptions made ............................................................... 21 3.3 Key issues ....................................................................................................................... 21 4 Assessment Methodology ....................................................................................... 24 4.1 Assessment Methodology and SEA Framework ............................................................. 24 4.2 Environmental Assessment Approach for WRMP ........................................................... 28 4.3 SEA Methodology ............................................................................................................ 30 4.4 Assessment Framework .................................................................................................. 30 4.4.1 SEA Screening of Constrained Options ................................................................. 30 4.4.2 Assessment of Feasible List................................................................................... 31 4.4.3 Summarising the effects assessment .................................................................... 36 4.4.4 Secondary, cumulative and synergistic environmental effects .............................. 38 4.4.5 Consideration of reasonable alternatives ............................................................... 39 4.5 Limitations of the study .................................................................................................... 39 5 Screening of Options ............................................................................................... 40 5.1 Overview .......................................................................................................................... 40 5.2 Moving from the Unconstrained option set to the Constrained option set ...................... 40 5.3 Moving from the Constrained option set to the Feasible List .......................................... 41 6 Assessment of Feasible List ................................................................................... 42 6.1 Assessment of Options Against SEA Objectives ............................................................ 42 6.1.1 Demand Management Assessment Findings ........................................................ 42 6.1.2 Water Supply Component Assessment Findings ................................................... 42 7 SEA and Programme Appraisal .............................................................................. 72 7.1 Programme Appraisal ...................................................................................................... 72 7.2 Assessment Findings of the Draft WRMP19 Programme ............................................... 74 7.3 HRA and WFD Assessments Findings ........................................................................... 82 7.4 Cumulative Effects of the Draft WRMP19 Programme ................................................... 82 7.4.1 Demand Management Solutions ............................................................................ 82 Ref: Ricardo/ED62813/Issue Number 2 Ricardo Energy & Environment Draft WRMP19 SEA Environmental Report | ii 7.4.2 Water Supply Solutions .......................................................................................... 82 7.4.3 Site C WTW and Reservoir Expansion .................................................................. 84 7.4.4 Shustoke Reservoir and Reservoir A Expansions ................................................. 84 7.4.5 Carsington Water ................................................................................................... 84 7.4.6 Trent from Dove to Derwent ................................................................................... 84 7.5 In-combination Effects of the Draft WRMP19 Programme with Existing Relevant Plans, Programmes and Projects .......................................................................................................... 84 7.5.1 Severn Trent Water’s Drought Plan ....................................................................... 85 7.5.2 Neighbouring water companies’ WRMPs and Drought Plans ................................ 85 7.5.3 Environment Agency Drought Plans ...................................................................... 86 7.5.4 Land Use and Spatial Plans ................................................................................... 86 7.5.5 National Policy Statements and National/Regional Infrastructure Plans ............... 87 7.5.6 Major projects ......................................................................................................... 87 8 Mitigation and Monitoring ....................................................................................... 88 8.1 Overview .......................................................................................................................... 88 8.2 Mitigation ......................................................................................................................... 88 8.3 Monitoring Requirements ................................................................................................ 88 9 Conclusions ............................................................................................................. 90 10 Quality Assurance ..................................................................................................