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Abstract
Available as eBook only.
The increased scientific knowledge of the management of water infrastructure, is forcing the application of radical and innovative techniques, that goes beyond seen pipes, tanks and pumps as infrastructure in the ground, but as assets which have an operational life and effective and efficient use of these component impacts on our ability as water providers and utilities to continue to provide high quality, high assurance water and sanitation services at reliably and affordably. They are now being seen as the lifeblood of the community, since they protect public health and they insure that local economies and national economies continue to run. Mounting evidence internationally suggests that the integrity of drinking water and wastewater infrastructure is at risk without a concerted effort to improve the management of key assets - pipelines, treatment plants, and other facilities - and a significant investment in maintaining, rehabilitating, and replacing these assets.
The application of asset management principles in the global water industry is of particular interest at the present time due to pressures from governments, regulators, shareholders and consumer groups in many countries to provide cost-effective and sustainable water services at least cost to customers and the environment. Recognising that the application of good science and innovation was on a rapid incline, it was deemed necessary to capture these novel and creative applications, techniques and process which were contributing to this new area of importance.
This GWRC Compendium of Best Practices in Asset Management demonstrates the advancements and progress being made in applying innovative and novel techniques and processes in the management of water and sanitation infrastructure. The cases highlight examples in different countries on strategic initiatives at the highest level, through the development of the policy and legislation towards ensuring that asset management becomes a legal requirement for all water services providers; innovation techniques for infrastructure risk assessment; decision- making techniques for capital investments; studies on the implementation of Asset management in utility practice, the use of GIS and IT technology, and the various little techniques of meter replacement, pressure management, continuous leak detection and rehabilitation of infrastructure.
Table of Contents
| Section Title | Page | Action | Price |
|---|---|---|---|
| Cover page | 1 | ||
| Title page | 2 | ||
| Copyright page | 3 | ||
| FOREWORD | 5 | ||
| ACKNOWLEDGEMENTS | 6 | ||
| INTRODUCTION TO THE COMPENDIUM BY THE EDITOR | 7 | ||
| TABLE OF CONTENTS | 9 | ||
| OVERVIEW OF WATER AND WASTEWATER INFRASTRUCTURE ASSET MANAGEMENT | 11 | ||
| Historical Background | 11 | ||
| Asset Management Definition | 12 | ||
| The US EPA Definitions of Asset Management are as follows: | 12 | ||
| Concepts used in Infrastructure Asset Management | 13 | ||
| Some guiding principles for IAM (sourced from Department of Water affairs south Africa, integrated asset management strategy) | 16 | ||
| Asset Management around the Water World | 17 | ||
| Challenges and future needs | 18 | ||
| Global cooperation on Strategic Asset Management | 19 | ||
| References | 19 | ||
| CONTRIBUTIONS FROM KWR – NETHERLANDS | 20 | ||
| Meter-replacement optimisation at Duinwaterbedrijf Zuid-Holland, The Netherlands | 20 | ||
| Summary | 20 | ||
| Introduction | 21 | ||
| Duties of the asset management department of Duinwaterbedrijf Zuid-Holland | 22 | ||
| Pillar for improvement: process optimisation | 23 | ||
| Pillar for improvement: asset management | 23 | ||
| Technical Accountant Report | 24 | ||
| Customer Minutes Lost (CML) | 24 | ||
| Water quality index Aquator and geographical plots | 24 | ||
| GIS-tools and databases | 24 | ||
| Research on water quality and pipe materials | 24 | ||
| Risk assessment | 24 | ||
| Research as a basis for maintenance decisions | 25 | ||
| Case-study: Optimisation of the water meter-replacement process | 25 | ||
| Administrative aspects of meter replacement in the current situation | 25 | ||
| Solutions for identified bottle-necks | 26 | ||
| Results of the optimised meter-replacement process | 28 | ||
| Distribution network design at PWN Water Company North-Holland | 30 | ||
| Introduction | 30 | ||
| PWN’s vision on asset management | 30 | ||
| Case study: new design rules for distribution networks | 30 | ||
| Historical distribution network design | 30 | ||
| New distribution network design rules: self cleaning networks | 31 | ||
| Three network designs put to the test | 32 | ||
| Conclusions | 34 | ||
| CONTRIBUTIONS FROM WATER ENVIRONMENT RESEARCH FOUNDATION (WERF) – USA | 35 | ||
| Programme sustainability – A case study City of Hamilton, Canada | 35 | ||
| Summary | 35 | ||
| Background Information | 35 | ||
| Hamilton amalgamates | 35 | ||
| “We knew we had a problem.” | 36 | ||
| Description of best practice, including involvement of institutions(personnel/departments) | 36 | ||
| Building an asset management team | 36 | ||
| Getting traction | 37 | ||
| Creation of an integrated AM program | 38 | ||
| Developing buy-in to an integrated asset management program | 39 | ||
| Integration with maintenance and operations | 39 | ||
| Importance of information technology | 39 | ||
| Description of best practices, including institutions (personnel/departments) involved(Importance of governance understanding and buy-in of the AM program) | 40 | ||
| Councillors' asset management education workshops | 40 | ||
| One-on-one meetings with councillors | 41 | ||
| Detailed city tours | 41 | ||
| Ward-by-ward breakdown of all proposed projects (mapped) | 41 | ||
| Summary of key lessons and experiences (results and findings) | 41 | ||
| Application of practice of understanding the condition of buried assets – City of Atlanta, Georgia (Atlanta Department of Waters | 42 | ||
| Summary | 42 | ||
| Introduction | 42 | ||
| CSO and SSO Consent Decrees Require Compliance | 42 | ||
| Background Information | 43 | ||
| Development of a Plan | 43 | ||
| Description of best practices including institutions (personnel/departments) involved | 43 | ||
| Timetable for improvements | 43 | ||
| Planning the program | 44 | ||
| Components of the plan | 45 | ||
| SSES | 45 | ||
| GIS | 45 | ||
| Hydraulic Modelling | 46 | ||
| Other Initiatives | 48 | ||
| Interim results | 48 | ||
| Program Funding | 49 | ||
| Summary of key lessons and experiences (results and findings) | 49 | ||
| Bibliographic information | 49 | ||
| Application of practice of setting the required level of service City of Columbus Water Works (CWW), GA. | 50 | ||
| Summary | 50 | ||
| Introduction | 50 | ||
| Background information | 50 | ||
| The value of feedback | 51 | ||
| Assessing asset management practices | 53 | ||
| Description of best practice, including institutions (personnel/departments) involved | 54 | ||
| Service level agreements | 54 | ||
| Summary of key lessons and experiences (results and findings) | 55 | ||
| Application of reliability centred maintenance at their Deer Island advanced wastewater treatment plant as a best practice O&M strategy - Massachusetts Water Resources Authority (MWRA), MASS. | 56 | ||
| Summary | 56 | ||
| Introduction | 56 | ||
| Background Information | 56 | ||
| Description of best practices, including institutions (personnel/departments) involved | 58 | ||
| Maximo (computerized maintenance management system) | 58 | ||
| Data quality | 58 | ||
| Utilisation of the Maximo System | 58 | ||
| Maintenance strategies | 59 | ||
| Reliability-Centred Maintenance (RCM) | 59 | ||
| Preventive maintenance optimisation | 60 | ||
| Condition monitoring | 61 | ||
| Acoustic ultrasonic case study | 62 | ||
| Lubrication savings case study | 62 | ||
| Infrared case study | 63 | ||
| Vibration case study | 64 | ||
| Business practices | 65 | ||
| Productivity improvement program | 65 | ||
| Cross-functional crews | 65 | ||
| Operations light maintenance | 65 | ||
| Metrics | 66 | ||
| Maintenance backlog | 66 | ||
| Availability | 66 | ||
| Summary of key lessons and experiences (results and findings) | 66 | ||
| Seattle Public Utilities (SPU) takes aim at critical assets using risk-based decision-making and strategic asset management plan - City of Seattle (Washington State) | 67 | ||
| Introduction | 67 | ||
| Seattle, WA, the Emerald City | 67 | ||
| Asset management background | 68 | ||
| Asset management – an evolutionary path | 69 | ||
| SPU Strives for a customer-centric approach | 70 | ||
| The Strategic Asset Management Plan (SAMP) | 70 | ||
| How SPU makes well-informed, risk-based decisions | 71 | ||
| Probability of failure | 72 | ||
| Calculating annual risk cost | 72 | ||
| Advice to other utilities seeking to implement an asset management program | 72 | ||
| Conclusion: The benefits of asset management for SPU | 73 | ||
| References | 74 | ||
| CONTRIBUTIONS FROM WATER RESEARCH FOUNDATION | 75 | ||
| Decision-making for capital investments Seattle public utilities case study: Introduction | 75 | ||
| Background | 75 | ||
| Organization and Management | 75 | ||
| Capital decision-making at Seattle Public Utilities | 77 | ||
| The project development plan | 77 | ||
| Participants in capital project decision-making | 78 | ||
| Triple bottom line evaluation | 78 | ||
| Project example | 79 | ||
| Summary of results | 82 | ||
| Continuous leak detection to monitor condition of water distribution pipes American Water case study | 83 | ||
| Introduction | 83 | ||
| Background | 83 | ||
| Searching for methods to find leaks | 83 | ||
| Practice demonstrated in Connellsville, Pennsylvania, USA | 84 | ||
| Continuous leak detection program | 84 | ||
| Acoustic monitoring | 84 | ||
| Automatic meter reading (AMR) System | 86 | ||
| Results from Connellsville | 86 | ||
| Summary of results | 87 | ||
| Use of electronic mobile and field solutions by Las Vegas Valley Water District Las Vegas Valley Water District | 89 | ||
| Introduction | 89 | ||
| Background | 89 | ||
| MIDAS – Mobile inspection data acquisition system | 89 | ||
| ViryaNet ServiceHub mobile application – mobile work order management | 91 | ||
| Other field solution systems used at the district | 91 | ||
| Locator system – Call USA | 91 | ||
| Firefly – AMR mobile solution | 92 | ||
| Distribution Permalog logger system – a preventive asset management too | 92 | ||
| Wachs system – preventive asset management tool for valves | 92 | ||
| Summary of results | 93 | ||
| The field solution systems used by the district have provided the following positive results: | 94 | ||
| The use of GIS to support EPCOR’s business processes EPCOR Water Services | 95 | ||
| Introduction | 95 | ||
| Background | 95 | ||
| GIS strategy in EPCOR | 95 | ||
| GIS in support of asset management at EPCOR | 97 | ||
| Water main renewal programs | 97 | ||
| Reactive renewal program | 97 | ||
| Proactive renewal program | 98 | ||
| Water distribution main cathodic protection | 98 | ||
| Water main internal lining program | 98 | ||
| Hydraulic modelling | 98 | ||
| Modified duties for injured staff | 99 | ||
| GeoEdmonton alliance | 100 | ||
| Financial benefits | 100 | ||
| Summary of results | 100 | ||
| Main replacement and rehabilitation program – Louisville Water Company | 102 | ||
| Introduction | 102 | ||
| Background | 102 | ||
| Main Replacement and Rehabilitation Program (MRRP) | 102 | ||
| History of MRRP | 102 | ||
| Key elements of the MRRP | 103 | ||
| Selection methodology | 103 | ||
| Results of MRRP | 104 | ||
| Other related programs and activities | 106 | ||
| Summary of results | 106 | ||
| CONTRIBUTIONS FROM UKWIR | 107 | ||
| Effective risk modelling of water infrastructure assets in the United Kingdom | 107 | ||
| Introduction | 107 | ||
| The discolouration risk modelling (DRM) approach | 107 | ||
| Objective | 108 | ||
| Principles | 108 | ||
| DRM Software | 109 | ||
| Contribution of DRM to system operations | 110 | ||
| Application to assist with capital planning | 111 | ||
| Validation and enhancement | 113 | ||
| Other associated approaches | 114 | ||
| Conclusions | 114 | ||
| Anglian Water’s strategic investment approach A case study on its initial application to wastewater infrastructure | 115 | ||
| Introduction | 115 | ||
| Overview of technical approach | 117 | ||
| ‘Risk number’ | 119 | ||
| Data assembly | 119 | ||
| Likelihood of performance failure | 119 | ||
| Regression modelling | 120 | ||
| Consequence of performance failure | 120 | ||
| Conclusions | 121 | ||
| Other relevant literature | 121 | ||
| System planning and the asset management process adopted within Northumbrian Water Limited. | 122 | ||
| R Wooldridge and S Walker | 122 | ||
| Introduction | 122 | ||
| Background | 123 | ||
| Developing a Risk Based Approach | 124 | ||
| Catchment Planning Process | 124 | ||
| Asset Management Process System (AMPS) | 124 | ||
| Asset Indicators used is System Planning | 126 | ||
| Risk Analysis | 129 | ||
| Strategic System Planning | 131 | ||
| Future Developments | 131 | ||
| Conclusions | 132 | ||
| Note | 132 | ||
| A case study on water mains rehabilitation planning and implementation, United Utilities, UK | 133 | ||
| Introduction | 133 | ||
| Understanding the problem | 134 | ||
| Agreements with the regulators as to needs | 134 | ||
| Developing the solution | 135 | ||
| Results | 136 | ||
| Achievements, and lessons learnt | 137 | ||
| Change and asset management in Thames Water: building the (im)perfect beast | 139 | ||
| Introduction | 139 | ||
| History - how did we get to here? | 139 | ||
| Wastewater Services | 139 | ||
| Water Services | 140 | ||
| Application and development of risk-based asset management in Thames Water | 140 | ||
| Past use of risk approaches in Thames Water | 140 | ||
| Delivering the Asset Lifecycle Vision | 142 | ||
| Organisational capability – People & business Processes | 147 | ||
| Relevant information | 148 | ||
| Capital maintenance Good practice guide Leading Edge Asset Decisions Assessment (LEADA) Yorkshire Water | 149 | ||
| Introduction | 149 | ||
| Objective | 149 | ||
| Data requirements | 149 | ||
| What drives the data? | 149 | ||
| Demand Element Data | 150 | ||
| Supply element data | 151 | ||
| Determining probability, severity and quantity | 152 | ||
| Data for network assets | 153 | ||
| Methodology | 155 | ||
| The LEADA approach to capital maintenance and investment planning | 155 | ||
| Stage 1 - Identification of risks to service | 155 | ||
| Asset death related risk | 157 | ||
| Operational Risks | 157 | ||
| Stage 2 - Consistent risks and solutions | 158 | ||
| Stage 3 Market research – willingness-to-pay | 159 | ||
| Stage 4 Economic optimisation | 161 | ||
| Stage 5 Financial implications | 165 | ||
| Stage 6 Investment authorisation | 165 | ||
| CONTRIBUTIONS FROM PUB, SINGAPORE | 166 | ||
| ‘Active, Beautiful, Clean’ (ABC) Waters Programme for Singapore’s sustainable assets management | 166 | ||
| Abstract | 166 | ||
| Background | 166 | ||
| Singapore’s rain water collection and transport | 167 | ||
| Singapore assets management through the ABC Waters Programme | 168 | ||
| Conclusion | 171 | ||
| Relevant Reading | 171 | ||
| CONTRIBUTIONS FROM SOUTH AFRICA | 172 | ||
| European Union/DPLG Pilot Project Asset Planning for Four Municipalities | 172 | ||
| Summary | 172 | ||
| Introduction | 172 | ||
| Background | 173 | ||
| Points of departure | 173 | ||
| Asset management planning approach adopted | 174 | ||
| Asset management plan deliverables | 177 | ||
| Scope, value and condition of infrastructure | 177 | ||
| Performance | 178 | ||
| Budget needs | 178 | ||
| Conclusions | 178 | ||
| At local level | 178 | ||
| In a wider context | 179 | ||
| A final caution | 179 | ||
| Free State Province and South African national monitoring of water and wastewater quality and improvement of asset management | 180 | ||
| Summary | 180 | ||
| Introduction | 180 | ||
| Potable water quality | 181 | ||
| Key challenges to improving water and wastewater quality management bymunicipalities | 182 | ||
| Electronic water quality data management system | 183 | ||
| The Free State recent developments | 184 | ||
| WQM sustainability analysis | 185 | ||
| Conclusion | 186 | ||
| Johannesburg Water and its \"Operation Gcin'amanzi\" service upgrading, asset management and demand management programme | 187 | ||
| Summary | 187 | ||
| Introduction | 187 | ||
| Johannesburg Water | 187 | ||
| Soweto | 188 | ||
| Operation Gcin'amanzi | 189 | ||
| Programme progress | 191 | ||
| Consequent effects | 192 | ||
| Conclusions | 193 | ||
| DWAF National Water Services Infrastructure Asset Management Strategy | 194 | ||
| Summary | 194 | ||
| Introduction and problem statement | 194 | ||
| Context | 195 | ||
| Scope of the first stage | 195 | ||
| Phase: Scan | 196 | ||
| Phase: Proceeding from fact-finding to solution-identification | 196 | ||
| Phase: Priority action areas | 199 | ||
| Way forward: The second stage | 199 | ||
| Conclusion | 199 | ||
| Sebokeng/Evaton water saving through pressure management | 200 | ||
| Summary | 200 | ||
| Introduction | 200 | ||
| The installation | 203 | ||
| Project team | 204 | ||
| Results | 204 | ||
| Rand Water major pipeline asset management | 207 | ||
| Summary | 207 | ||
| Rand Water background and importance to the economy | 208 | ||
| Supply area | 208 | ||
| Pipeline asset management regime: overview | 209 | ||
| Asset management of pre-stressed concrete pipelines | 211 | ||
| Conclusions | 214 | ||
| Rustenburg public-private partnership for upgrading, operation and maintenance of water and wastewater treatment infrastructure | 216 | ||
| Summary | 216 | ||
| Introduction | 216 | ||
| Addressing the issues | 217 | ||
| The consortium | 218 | ||
| The engineering works | 218 | ||
| Rustenburg Water Services Trust | 219 | ||
| Conclusion | 220 | ||
| Western Cape Provincial Government collaborative programme. Asset management planning support for local municipalities | 221 | ||
| Summary | 221 | ||
| Introduction | 221 | ||
| Initiation of the collaborative approach | 222 | ||
| Data collection pilot studies | 223 | ||
| Asset management planning pilot study | 224 | ||
| Benefits of a collaborative approach | 225 | ||
| Conclusion | 225 | ||
| ASSET MANAGEMENT RESOURCE LIST | 230 | ||
| Guidelines, software, publications and papers | 230 | ||
| Training aids and initiatives | 236 |