Milton Keynes Council Local Flood Risk Management Strategy
Total Page:16
File Type:pdf, Size:1020Kb
ANNEX B Water Submitted to: Submitted by : Milton Keynes Council, AECOM, Civic Offices, Scott House, 1 Saxon Gate East, Alençon Link, Central Milton Keynes, Basingstoke, MK9 3EJ. Hampshire, RG21 7PP. Telephone: +44(0)1256 310 200 Fax: +44(0)1256 310 201 Milton Keynes Council Local Flood Risk Management Strategy Strategic Environmental Assessment Environmental Report AECOM Milton Keynes Council LFRMS SEA Environmental Report Prepared by: Penelope Pickerin Checked by: Simon Keys Graduate Consultant EIA Project Manager Approved by: Jon Robinson Operations Director – Water Rev No Comments Checked by Approved Date by 0 Draft Report for Comment Simon Keys Jon 15.04.2015 Robinson AECOM, Scott House, Alençon Link, Basingstoke, Hampshire, RG21 7PP, United Kingdom. Telephone: 01256 310 200 Website: http://www.aecom.com 47072190 Milton Keynes LFRMS AECOM Milton Keynes Council LFRMS SEA Environmental Report Limitations AECOM Infrastructure & Environment UK Limited (“AECOM”) has prepared this Report for the sole use of the Milton Keynes Council (“Client”) in accordance with the Agreement under which our services were performed [47072190 November 2014 ]. No other warranty, expressed or implied, is made as to the professional advice included in this Report or any other services provided by AECOM. This Report is confidential and may not be disclosed by the Client nor relied upon by any other party without the prior and express written agreement of AECOM. The conclusions and recommendations contained in this Report are based upon information provided by others and upon the assumption that all relevant information has been provided by those parties from whom it has been requested and that such information is accurate. Information obtained by AECOM has not been independently verified by AECOM, unless otherwise stated in the Report. The methodology adopted and the sources of information used by AECOM in providing its services are outlined in this Report. The work described in this Report was undertaken between November 2014 and April 2015 and is based on the conditions encountered and the information available during the said period of time. The scope of this Report and the services are accordingly factually limited by these circumstances. Where assessments of works or costs identified in this Report are made, such assessments are based upon the information available at the time and where appropriate are subject to further investigations or information which may become available. AECOM disclaim any undertaking or obligation to advise any person of any change in any matter affecting the Report, which may come or be brought to AECOM’s attention after the date of the Report. Certain statements made in the Report that are not historical facts may constitute estimates, projections or other forward- looking statements and even though they are based on reasonable assumptions as of the date of the Report, such forward- looking statements by their nature involve risks and uncertainties that could cause actual results to differ materially from the results predicted. AECOM specifically does not guarantee or warrant any estimate or projections contained in this Report. Unless otherwise stated in this Report, the assessments made assume that the sites and facilities will continue to be used for their current purpose without significant changes. Copyright © This Report is the copyright of AECOM Infrastructure & Environment UK Limited. Any unauthorised reproduction or usage by any person other than the addressee is strictly prohibited. AECOM Milton Keynes Council LFRMS SEA Environmental Report Table of Contents Table of Contents ........................................................................................................................................................................ i Executive Summary ............................................................................................................................................................. ES-1 Background ............................................................................................................................................................................ ES-1 Strategic Environmental Assessment ..................................................................................................................................... ES-1 Milton Keynes LFRMS ............................................................................................................................................................ ES-2 Assessment Results ............................................................................................................................................................... ES-2 1 Introduction ......................................................................................................................................................................... 1-1 1.1 Strategic Environmental Assessment ........................................................................................................................... 1-1 1.2 Structure of the Environmental Report ......................................................................................................................... 1-1 2 Consultation ........................................................................................................................................................................ 2-1 2.1 Development from the Scoping Report ........................................................................................................................ 2-1 2.2 Dealing with Uncertainties ............................................................................................................................................ 2-1 3 Strategic Environmental Assessment ............................................................................................................................... 3-1 3.1 The Purpose of Strategic Environmental Assessment ................................................................................................. 3-1 3.2 Stages in the SEA Process .......................................................................................................................................... 3-1 4 The Milton Keynes Council’s LFRMS ................................................................................................................................ 4-1 4.1 Overview ...................................................................................................................................................................... 4-1 4.2 Technical Scope of a LFRMS ....................................................................................................................................... 4-3 4.3 Relationship between the SEA and LFRMS ................................................................................................................. 4-6 4.4 Relationships with other Flood and Water Management Plans .................................................................................... 4-6 4.5 Aims, Objectives and Measures ................................................................................................................................... 4-9 4.6 Draft Strategy Objectives and Measures ...................................................................................................................... 4-9 5 Sustainability ....................................................................................................................................................................... 5-1 5.1 Introduction ................................................................................................................................................................... 5-1 5.2 Review of Relevant Plans, Programmes and Strategies .............................................................................................. 5-1 5.3 Water Framework Directive (WFD) Assessment .......................................................................................................... 5-2 5.4 Identification of Key Themes ........................................................................................................................................ 5-2 6 SEA Baseline Information .................................................................................................................................................. 6-1 6.1 Introduction ................................................................................................................................................................... 6-1 6.2 Summary of Flood Risk in Milton Keynes ..................................................................................................................... 6-1 6.3 Surface Water (Pluvial) Flooding .................................................................................................................................. 6-4 6.4 Groundwater Flooding .................................................................................................................................................. 6-6 6.5 Flooding from Ordinary Watercourses .......................................................................................................................... 6-8 6.6 Main River (Fluvial) Flooding ........................................................................................................................................ 6-8 6.7 Sewer Flooding .........................................................................................................................................................