Bristol Water Draft Drought Plan 2021 HRA Stage 1 Screening Report Final Draft Report for Bristol Water
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Bristol Water Draft Drought Plan 2021 HRA Stage 1 Screening Report Final draft report for Bristol Water Report for Bristol Water - 3500071535 ED 14443 | Issue number 1 | Date 29/03/2021 Bristol Water Draft Drought Plan 2021 - HRA Screening Report_Final draft Ref: ED 14443 | Issue number 1 | 29/03/2021 Customer: Contact: Bristol Water Plc Ed Fredenham, Gemini Building, Fermi Avenue, Harwell, Didcot, OX11 0QR, UK Customer reference: T: +44 (0) 1235 753 486 3500071535 E: [email protected] Confidentiality, copyright and reproduction: Author: Emilie Gorse, Peter Kimberg and Jess Ware This report is the Copyright of Bristol Water Plc. and has been prepared by Ricardo Energy & Environment, a trading name of Ricardo-AEA Ltd Approved by: under contract CON450 dated 23 October 2020. The contents of this report may not be John Sanders reproduced, in whole or in part, nor passed to any organisation or person without the specific prior written permission of Bristol Water Plc. Ricardo Signed Energy & Environment accepts no liability whatsoever to any third party for any loss or damage arising from any interpretation or use of the information contained in this report, or reliance on any views expressed therein, other than the liability that is agreed in the said contract. Date: 29/03/2021 Ref: ED 14443 Ricardo is certified to ISO9001, ISO14001, ISO27001 and ISO45001 Bristol Water Draft Drought Plan 2021 - HRA Screening Report_Final draft Ref: ED 14443 | Issue number 1 | 29/03/2021 Non-Technical Summary Water companies are required to prepare and maintain statutory Drought Plans every five years, and as part of this process, must ensure the Drought Plan meets the requirements of the Conservation of Habitats and Species Regulations 2017 (“the Habitats Regulations”). Under Regulations 63 and 105, any plan or project which is likely to have a significant effect on a European site (either alone or in-combination with other plans or projects) and is not directly connected with, or necessary for the management of the site, must be subject to a Habitats Regulations Assessment (HRA) to determine the implications for the site in view of its conservation objectives. For the purposes of the HRA, a European site includes Special Areas of Conservation (SAC), Special Protection Areas (SPA) and Ramsar sites, as well as any candidate or proposed sites. Bristol Water has completed the first stage of the HRA process – screening - on its Draft Drought Plan 2021. The HRA screening stage identifies whether any measures included within the plan may have “Likely Significant Effects” on the integrity of any European site, either “alone” or “in combination” with other measures or other plans or projects. A summary of the conclusions of HRA Stage 1 Screening is presented in Table A. This shows that likely significant effects of the Draft DP 2021 could not be ruled out upon the following European sites: North Somerset and Mendips Bats SAC Severn Estuary SAC Severn Estuary Ramsar site Mendip Limestone Grasslands SAC Somerset Levels and Moors SPA. Appropriate Assessment is required for each supply option to conclude ‘adverse effect’ or ‘no adverse effect’ upon the European sites. The demand management measures will not have any Likely Significant Effects on any European sites. In accordance with the Habitats Regulations, where Likely Significant Effects are identified, the HRA Stage 2 Appropriate Assessment process is required to assess in more detail whether the plan may adversely affect the integrity of any European site. Appropriate Assessment of the supply augmentation and drought permit measures is therefore required and will be carried out as part of the further development of the Bristol Water Drought Plan alongside further work on the environmental assessment of the supply augmentation and drought permit measures. Table A: Summary of HRA Stage 1 Screening Conclusions Likely If no LSE alone: If no LSE alone: significant Residual low-level Residual low-level effects (LSE) effect requiring in- effect requiring in- Appropriate Drought Option on European combination combination Assessment Site(s) alone? assessment with assessment with Required? existing consents? other drought options? Demand Management Measures Appeals for restraint No No No No Temporary Use Bans No No No No Non-Essential Use No No No No Ban Supply Augmentation Measures R24R Well Yes N/A N/A Yes Drought Permits Blagdon Reservoir Yes N/A N/A Yes i Bristol Water Draft Drought Plan 2021 - HRA Screening Report_Final draft Ref: ED 14443 | Issue number 1 | 29/03/2021 Likely If no LSE alone: If no LSE alone: significant Residual low-level Residual low-level effects (LSE) effect requiring in- effect requiring in- Appropriate Drought Option on European combination combination Assessment Site(s) alone? assessment with assessment with Required? existing consents? other drought options? Reduced Compensation Flow Cheddar Reservoir Yes N/A N/A Yes Reduced Prescribed Flow Chew Valley Yes N/A N/A Yes Reservoir Reduced Compensation Flow Changes to Minimum Yes N/A N/A Yes Residual Flow conditions set out in the P08R Abstraction Licence Changes to Minimum Yes N/A N/A Yes Residual Flow conditions set out in the P05R abstraction licence Extension to the Yes N/A N/A Yes licensed abstraction period for the River Axe source to support the refill of Cheddar reservoir ii Bristol Water Draft Drought Plan 2021 - HRA Screening Report_Final draft Ref: ED 14443 | Issue number 1 | 29/03/2021 Table of Contents Non-Technical Summary .......................................................................................... i Table of Contents ..................................................................................................... 1 List of Tables ............................................................................................................ 2 List of Figures .......................................................................................................... 2 1 INTRODUCTION ................................................................................................. 3 1.3 Bristol Water’s Drought Planning Process .............................................................................. 7 1.3.1 Overview and timetable ....................................................................................................... 7 1.3.2 Bristol Water’s Drought Plan Measures .............................................................................. 7 1.4 Purpose of this document ....................................................................................................... 9 2 METHODOLOGY .............................................................................................. 10 2.1 Approach to HRA Screening ................................................................................................. 10 2.2 HRA Stages........................................................................................................................... 10 2.3 Identification of European Sites for Assessment .................................................................. 11 2.4 Potential Impacts of Drought Plan Measures ........................................................................ 13 2.5 Review of Potential In-combination Effects ........................................................................... 15 3 HRA SCREENING FINDINGS........................................................................... 17 3.1 HRA Screening of Statutory Drought Plan ............................................................................ 17 4 CONCLUSIONS AND RECOMMENDATIONS ................................................. 65 4.1 Summary of HRA Screening Conclusions ............................................................................ 65 4.2 Methodology for Appropriate Assessment ............................................................................ 66 4.2.1 Guidance ........................................................................................................................... 66 4.2.2 Objectives .......................................................................................................................... 67 4.2.3 Mitigation Measures .......................................................................................................... 67 4.2.4 Integrity Test ...................................................................................................................... 74 4.2.5 Monitoring .......................................................................................................................... 74 4.2.6 Limitations ......................................................................................................................... 74 4.2.7 Consultation ...................................................................................................................... 74 4.2.8 Inclusion of measures in the Drought Plan ....................................................................... 74 4.3 Next Steps ............................................................................................................................. 74 1 Bristol Water Draft Drought Plan 2021 - HRA Screening Report_Final draft Ref: ED 14443 | Issue number 1 | 29/03/2021 List of Tables Table 1-1: Demand Management Measures .......................................................................................... 8 Table 1-2: Drought Permit Measures included in 2018 DP and Draft DP 2021 ..................................... 9 Table 2-1: