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Water and Cities

Water and Cities

(2015)

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Abstract

This report focuses on the urban water management challenges facing cities across OECD countries, and explores both national and local policy responses with respect to water-risk exposure, the state of urban infrastructures and dynamics, and institutional and governance architectures. The analyses focus on four mutually dependent dimensions – finance, innovation, urban-rural co-operation and governance – and proposes a solutions-oriented typology based on urban characteristics. The report underlines that sustainable urban water management will depend on collaboration across different tiers of government working together with local initiatives and stakeholders.

Table of Contents

Section Title Page Action Price
Cover Cover
Table of contents 7
Abbreviations 11
Executive summary 13
Emerging challenges for water management in OECD countries 13
Four questions to set urban water management on a sustainable path 13
Lessons learnt from the transition of selected cities towards a new era 14
Chapter 1: A framework for city-level water management 17
Introduction 19
Water-related risks to cities in OECD countries 19
Water scarcity 20
Floods 22
Pollution 23
The resilience of freshwater ecosystems 25
Ageing infrastructure 26
Global projections for financing needs for urban water infrastructure 27
France 28
Japan 30
The United States 31
Institutional changes affecting urban water governance 31
National and international regulations 32
Administrative and territorial reforms 33
A new attention to stakeholder engagement 34
A framework for urban water management 34
Financing 37
Innovation 37
The urban-rural interface 38
Water governance 38
Alternative scenarios for urban water management 39
Clustering cities and policy responses to water management 40
A working definition of cities 40
A typology of cities for water management 41
Tailoring responses to risks 43
Beyond cities: A role for other tiers of government 44
Notes 46
Annex 1.A1: Two city typologies relevant to water management 48
Note 49
References 50
Chapter 2: Financing urban water management 55
Introduction 57
Financing constraints in cities in OECD countries 57
Revenues from water tariffs 58
Taxes (transfers from public budgets) 62
Transfers from the international community 63
Repayable finance 63
Options to minimise costs 64
Tapping efficiency gains in asset management 64
Exploiting low-cost water sources 65
Amalgamating urban water management 67
Water tariffs contribute to water resource management 69
Innovative tariff structures 70
Social sustainability of water pricing 71
Diversified revenue streams 73
Innovative business models for water utilities 73
Fiscal instruments targeting specific externalities 75
A role for private investors 78
Private-sector participation in urban water management 78
Opportunities to access equity finance 78
Harnessing property developers to invest in water systems 81
Notes 83
Annex 2.A1: Financing urban water management in Korea 85
Water demand and expenditure in Korean cities 85
Financing WSS in Korean cities 87
Notes 88
References 89
Chapter 3: Supporting the diffusion of innovative pathways for urban water management 93
Introduction 95
Opportunities for disruptive technical innovations 95
Smart water systems 95
Zooming in: How smart meters affect urban water management 97
Policies to support SMW diffusion 98
Localised sanitation and drainage at source 99
Localised sanitation 99
Decentralised rainwater collection and drainage 100
Policy implications 102
Distributed systems 103
The benefits of non-technical innovations 104
Combining a variety of water sources 104
Green infrastructures 106
Water-sensitive urban design 107
Barriers to the diffusion of innovation for urban water management 109
Common barriers to disruptive technologies 109
Specific barriers to distributed system diffusion 111
Barriers to diffusing green infrastructures 112
Overcoming barriers to innovative urban water management 113
Synergies with other policies 113
Combining policy instruments 113
Adjusting urban water governance 114
Opportunities deriving from the current financial crisis 114
Notes 115
References 115
Chapter 4: Urban-rural co-operation for water management 119
Introduction 121
Managing competition between urban and rural areas to access water 123
Policy objectives and responses 123
Command-and-control instruments: Technology standards and rationing policies 124
Water conservation measures 127
Economic instruments: Water pricing and tradable water rights 128
Groundwater conservation policies 131
Mitigating flood risks in urban areas 134
Water quality standards and PES 136
Policy responses 137
Implementation issues 141
Scale of urban water policies and implication for rural-urban co-operation 141
Implementing rural-urban policies 142
Notes 145
References 146
Chapter 5: Governance for urban water management 151
Preliminary remark 153
Governance challenges to urban water management 153
Accountability 161
Governance arrangements for urban water management 162
Metropolitan governance 162
Establishing dedicated regulatory bodies 166
The emergence of dedicated water regulators 166
Why are they established? 167
What do water regulators do? 167
Stakeholder engagement 168
Note 171
Annex 5.A1: Characterisation of respondents to the OECD Survey on urban water governance 172
Annex 5.A2: Regulators who responded to the OECD survey on the Governance of Water Regulators 174
Annex 5.A3: Typology of regulatory functions for WSS 175
References 176
Glossary 177