ISO/TR 24589-1:2024
(Main)Examples of good practice for the management of assets of water supply and wastewater systems — Part 1: Water supply
Examples of good practice for the management of assets of water supply and wastewater systems — Part 1: Water supply
This document contains selected examples for good practice approaches for the management of assets of drinking water supply systems. This document is intended as a supporting document for ISO 24516-1 and ISO 24516-2, which contain guidelines for the management of assets of drinking water systems. As such, this document can contribute to realize value from existing assets when following the guidelines for the management of assets of drinking water systems approaches in the strategic, tactical, and operational plans given in ISO 24516-1 and ISO 24516-2. NOTE A recapitulative table of the examples covered in this document is provided in Annex A.
Exemples de bonnes pratiques de la gestion d’actifs de systèmes d'approvisionnement en eau potable et d'assainissement — Partie 1: Approvisionnement en eau potable
General Information
Standards Content (Sample)
Technical
Report
ISO/TR 24589-1
First edition
Examples of good practice for the
2024-12
management of assets of water
supply and wastewater systems —
Part 1:
Water supply
Exemples de bonnes pratiques de la gestion d’actifs de systèmes
d'approvisionnement en eau potable et d'assainissement —
Partie 1: Approvisionnement en eau potable
Reference number
© ISO 2024
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ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principal aspects . 1
4.1 Objectives .1
4.1.1 Water utility with multiple waterworks and distribution networks .1
4.1.2 Water distribution network .3
4.1.3 Waterworks .4
4.2 Strategies .10
4.2.1 Maintenance strategy .10
4.2.2 Renewals decision .11
4.2.3 Inspection strategy of water supply network .11
4.3 Structuring the process . 12
4.3.1 Initial steps for the management of assets of water distribution systems . 12
4.3.2 Linkage of tool or activity to specific utility objective .14
4.3.3 Flowchart to sustain the asset management plan . 15
5 Investigation . . 17
5.1 Non-destructive pipe condition investigation techniques .17
5.2 High density polyethylene (HDPE) .17
5.3 Hydraulic performance .19
5.4 Condition assessment framework for drinking water storage tanks – prioritisation
based on visual inspection .21
6 Assessment . .24
6.1 Degradation models based on service life .24
6.2 Assessment of maturity of operations to define action plans .24
6.3 Criticality . 25
6.3.1 Networks: simplified criticality map base on the impact of a failure . 25
6.3.2 Treatment plant: implementation of simplified and monetized FMECA (failure
mode, effects and criticality analysis) . 26
6.4 Likelihood of failure: multicriteria evaluation for networks . 28
7 Implementation . .30
7.1 Prioritization of works . 30
7.2 Sustainable field works . 30
8 Operation and maintenance .30
8.1 Planned water leakage prevention action . 30
8.1.1 General . 30
8.1.2 Planned work .31
8.1.3 On-call service . 35
8.2 Energy monitoring and optimisation . 35
8.3 Monitoring and control . 36
8.4 Monitoring .37
9 Rehabilitation .37
9.1 Network renewal plan .37
9.2 CAPEX optimization tool . 39
9.3 Plant renewal plan. 39
Annex A (informative) Summary of examples of good practices for asset management of water
supply systems .40
Bibliography .43
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO’s adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 224, Drinking water, wastewater and
stormwater systems and services.
This first edition of ISO 24589-1, together with ISO 24589-2, cancels and replaces ISO 24589.
A list of all parts in the ISO 24589 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
Introduction
This document is written within the overall concept of asset management, which is an activity all
organizations undertake in some manner and to some degree. It focusses on the details of managing the
physical assets at the operational level rather than the organizational (corporate management) level.
Water services are reliant on their assets to deliver their services to the resident populations in their
jurisdictions. The assets (underground pipes, reservoirs, storage tanks, treatment plants, etc.) collectively
form the physical infrastructure of the water services and are the consequence of the accumulated capital
investments and operational expenditures on maintenance and rehabilitation over many years. In many of
these services, the replacement value of these past investments amounts to many millions (even billions)
of dollars depending on the size of the community served. The infrastructure represents therefore a major
societal investment in essential services contributing to public health and the protection of the environment.
In many countries, these assets have been identified as critical infrastructures and programs are in place to
assure their protection or their sustainability. Like many other organizations having assets, water services
undertake programs of activities to manage the assets to ensure they continue to meet the needs of the
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