WATER MANAGMENT PLAN

Building Engineering Services Association Guide to Good Practice: Water Management Plan TR 60 V1 September 2021 WWW.BESA.COM

ISBN 978-0-9957600-6-6 First edition 2021 ©2021 BESA All rights reserved BESA Publications Old Mansion House Eamont Bridge Penrith CA10 2BX 0207 313 4900 [email protected]

ACKNOWLEDGEMENTS The BESA would like to acknowledge those members of the expert panel who contributed their time, experience and knowledge in the drafting of this guidance. Experts Panel Kevin Morrissey Will Pitt Nick Mead Garry Haigh Paul Hancock Gary Edgar Graeme Fox Paul Newby Justin Maitland-Walker Paul McSoley SCOPE This Guide to Good Practice covers the design and implementation of a Water Management Plan for commercial/non-domestic premises and facilities where employees and the public are potentially at risk. The guidance is not intended for residential premises, although some of its provisions will apply. This specification makes use of terms “should”, “shall” and “must” when prescribing procedures: • The term “must” identifies a requirement by law at the time of publication. • The term “shall” prescribes a procedure, which it is intended to be complied • with, in full and without deviation. The term “should” prescribes a procedure, which it is intended to be complied with unless, after prior consideration, deviation is considered equivalent or better. Publication and review User feedback on the content or the requirements of the guidance will be welcomed to assist in the ongoing development of this document. [email protected] Notes Manufacturing techniques are continually subject to change and improvements and in respect of proprietary methods and devices this guide does not preclude their use if they can be demonstrated to the system designer to be equally satisfactory. Where there is divergence between the requirements of and the manufacturer’s recommendations for proprietary methods and devices, the latter shall take precedence. This document is based on knowledge available at the time of publication and is meant for general purposes, not for reliance on in relation to specific technical or legal issues, in which case you should always seek independent advice. No responsibility of any kind for any injury, death, loss, damage or delay however caused, resulting from the use of the advice and recommendations contained herein, is accepted by the authors or others involved in its publication (including the Building Engineering Services Association). The Building Engineering Services Association Water Management Plan 3

CONTENTS Acknowledgements 3 Scope 3 Contents 4 Sections Section 1 Introduction 5 Section 2 Construction and installation 6 Section 3 Emergency response, recovery, 10 and adaption Section 4 Management, Quality and 13 Competence Appendices Appendix 1 Design considerations 15 Appendix 2 Water Management Template 17 Appendix 3 Dynamic Risk Assessment 18 Appendix 4 Risk Assessment Matrix 19 Appendix 5 Monitoring and review 20 Appendix 6 Further action 20 Appendix 7 Confirmation of Risk Assessment 21 and Method Statement Briefing Figures Figure 1 Service area flooding after 5 overnight leakage 6 8 plant deck 10 12 Figure 2 Clean dry pipes, stored off ground Figure 3 Typical Emergency Isolation Chart Figure 4 Inspecting a site after a major leak Figure 5 Emergency Response Flow Chart 4 The Building Engineering Services Association Water Management Plan

SECTION 1 INTRODUCTION 1.1 Water damage to buildings is a significant risk especially during construction and maintenance operations. Some larger consequences of a leak (Fig 1) can include impacts such as financial loss, contractual disputes, lost customer relationships and discontinued insurance cover. It is not unusual for insurers to ask what measures are in place, both project by project and at annual renewal. The absence of some or any measures could result in higher insurance excess. 1.2 This Water Management Plan should be used as a guide for contractors involved in installation, commissioning and operation of water systems of all types in buildings, to demonstrate the key requirements to insurers that mitigate risk. Water systems include a wide variety of services including closed loop heating and cooling systems, open hot and cold water distribution systems, foul and rainwater drainage systems and a wide variety of specialist systems such as process water and fire protection. Clear contractual responsibilities should be set by the client for each phase i.e. planning, preparation, response, recovery and adaption. These responsibilities will pass during the life of the project from Principal Contractor to Building Manager who will each call on specialist support to deliver specific requirements and expertise. 1.3 Explicit inclusion of a water management plan should be made (see Appendices for templates) in procurement processes and the resulting contracts to ensure provisions are included by all parties, in the identification, analysis and avoidance/ mitigation of the risks associated with the escape of water. The project ‘Water Management Plan’ should ensure the following, as a minimum: • appointment of ‘Responsible Persons’ to manage the escape of water risk • a risk assessment process for mitigating exposure at the design phase • the selection of competent contractors (BESA Member search) • rigorous Quality Control at all stages of the project including delivery, material • storage, installation and testing mitigation measures,identification and implementation and maintenance of these mitigation measures • emergency response plans • regular review of the risk assessment and Water Management Plan (ensuring measures remain appropriate) Fig. 1 Site flooding caused by severe rainfall The Building Engineering Services Association Water Management Plan 5