scholarly journals WATER SAFETY PLANNING FOR URBAN WATER UTILITIES: Practical Guide for ADB Staff

2017 ◽  
Keyword(s):  
Water Utilities ◽  
Urban Water ◽  
Safety Planning ◽  
Water Safety ◽  
Practical Guide

scholarly journals Linking water quality monitoring and climate-resilient water safety planning in two urban drinking water utilities in Ethiopia

2019 ◽  
Vol 17 (6) ◽  
pp. 989-1001
Author(s):  
Harold van den Berg ◽  
Bettina Rickert ◽  
Seada Ibrahim ◽  
Kasa Bekure ◽  
Hailu Gichile ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Drinking Water ◽  
Addis Ababa ◽  
Water Quality Monitoring ◽  
Water Utilities ◽  
Quality Monitoring ◽  
Guidance Document ◽  
Safety Planning ◽  
Water Safety

Abstract Unsafe drinking water is a recognized health threat in Ethiopia, and climate change, rapid population growth, urbanization and agricultural practices put intense pressure on availability and quality of water. Climate change-related health problems due to floods and waterborne diseases are increasing. With increasing insight into impacts of climate change and urbanization on water availability and quality and of required adaptations, a shift towards climate-resilient water safety planning was introduced into an Ethiopian strategy and guidance document to guarantee safe drinking water. Climate-resilient water safety planning was implemented in the urban water supplies of Addis Ababa and Adama, providing drinking water to 5 million and 500,000 people, respectively. Based on the risks identified with climate-resilient water safety planning, water quality monitoring can be optimized by prioritizing parameters and events which pose a higher risk for contaminating the drinking water. Water quality monitoring was improved at both drinking water utilities and at the Public Health Institute to provide relevant data used as input for climate-resilient water safety planning. By continuously linking water quality monitoring and climate-resilient water safety planning, utilization of information was optimized, and both approaches benefit from linking these activities.

scholarly journals Effective water safety management of piped water networks in low-income urban settlements

2013 ◽  
Vol 3 (3) ◽  
pp. 402-410 ◽  
Author(s):  
Sam Kayaga
Keyword(s):  
Developing Countries ◽  
Low Income ◽  
Safety Management ◽  
Financial Economic ◽  
Water Utilities ◽  
Urban Water ◽  
Water Safety ◽  
Community Members ◽  
Urban Settlements ◽  
Relevant Community

Spiralling low-income settlements are a big challenge to urban water utilities of developing countries. To extend and maintain water services to these settlements, urban water utilities need to develop innovative solutions for overcoming various physical/technical, institutional, structural/legal and financial/economic constraints associated with these informal areas. This paper draws from documented pilot projects of implementing community-managed Water Safety Plans (WSPs) in various developing countries, and synthesises necessary ingredients for effective implementation of WSPs in low-income urban settlements. Urban water utilities need to partner with community members, but the former should keep a facilitating/overseeing role, given the overly technical nature of WSPs. The terms of the partnership should be mutually agreed and well documented; the utility should allow full participation of the relevant community members in the overall Operation and Maintenance (O&M) plan for the low-income settlement, in order to enhance community ownership of the water supply system, and continuously develop the capacity of relevant community members. The relevant community members should be facilitated, through participatory approaches, to develop bespoke community-based WSPs along with simple monitoring tools. Implementing community-managed WSPs will be easier and more effective if O&M systems and community management approaches are already institutionalised within the water utility.

scholarly journals Managing Apparent Loss and Real Loss from the Nexus Perspective Using System Dynamics

Water ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 231
Author(s):  
Seo Hyung Choi ◽  
Bongwoo Shin ◽  
Eunher Shin
Keyword(s):  
System Dynamics ◽  
Water Loss ◽  
Management Strategies ◽  
Water System ◽  
Economic Feasibility ◽  
Water Utilities ◽  
Urban Water ◽  
Water Losses ◽  
Urban Water System ◽  
Apparent Loss

When water utilities establish water loss control programs, they traditionally focus on apparent loss rather than real loss when considering economic feasibility in the water sector. There is an urgent need for new management approaches that can address complex relationships and ensure the sustainability of natural resources among different sectors. This study suggests a novel approach for water utilities to manage water losses from the water-energy (WE) Nexus perspective. The Nexus model uses system dynamics to simulate twelve scenarios with the differing status of water loss and energy intensities. This analysis identifies real loss as one of the main causes of resource waste and an essential factor from the Nexus perspective. It also demonstrates that the energy intensity of each process in the urban water system has a significant impact on resource use and transfer. The consumption and movement of resources can be quantified in each process involved in the urban water system to distinguish central and vulnerable processes. This study suggests that the Nexus approach can strongly contribute to quantifying the use and movement of resources between water and energy sectors and the strategic formulation of sustainable and systematic water loss management strategies from the Nexus perspective.

scholarly journals Evolución y perfiles de eficiencia de los organismos operadores de agua potable en México / Evolution and Efficiency Profiles of Urban Water Utilities in Mexico

2011 ◽  
Vol 26 (3) ◽  
pp. 563 ◽  
Author(s):  
América N. Lutz Ley ◽  
Alejandro Salazar Adams
Keyword(s):  
Production Costs ◽  
Water Utilities ◽  
Urban Water ◽  
Per Capita Gdp ◽  
Consumption Level ◽  
Global Efficiency ◽  
Per Capita ◽  
Performance Results

En este trabajo se analiza la eficiencia física, comercial y global de los organismos operadores de agua en las localidades urbanas de México entre 2002 y 2008. A partir de sus puntajes se forman cuatro grupos que se comparan atendiendo a las variables que podrían afectar su desempeño. Los resultados indican que no existen cambios significativos en las eficiencias en este periodo. La eficiencia física es mayor en las localidades grandes, con elevados niveles de consumo, de PIB per cápita y de costos de producción; en cambio la eficiencia comercial y la recaudación por metro cúbico son superiores en las localidades que cuentan con mayor cobertura de micromedición. AbstractIn this paper, physical, commercial, and global efficiency of Mexican urban water utilities between 2002 and 2008 is analyzed. Utilities were grouped in four categories depending on their scores; afterwards the groups were compared in terms of variables that can affect their performance. Results indicate that there are not significant changes in the levels of efficiencies in this period. Physical efficiency is higher in large localities, where consumption level, per capita GDP, and production costs were also greater; whereas commercial efficiency and revenue per cubic meter are greater in localities with higher metering coverage.

scholarly journals Data and Information Systems Management for the Urban Water Infrastructure Condition Assessment

2021 ◽  
Vol 3 ◽  
Author(s):  
Nelson Carriço ◽  
Bruno Ferreira
Keyword(s):  
Information Systems ◽  
Condition Assessment ◽  
Water Utilities ◽  
Urban Water ◽  
Water Infrastructure ◽  
Systems Management ◽  
Maturity Level ◽  
Information Systems Management ◽  
The World ◽  
Vital Component

Most of urban water infrastructure around the world were built several decades ago and nowadays they are deteriorated. So, the assets that constitute these infrastructures need to be rehabilitated. Since most of the assets are buried, water utilities face the challenge of deciding how, where and when to rehabilitate. Condition assessment is a vital component on plan rehabilitation actions and is mostly based on the data collected from the managed networks. This collected data need to be put together in order to be transformed into useful information. Nonetheless, the large amount of assets and data involved makes data and information management a challenging task for water utilities, especially in those with as lower digital maturity level. This paper highlights the importance of data and information systems' management for urban water infrastructure condition assessment based on the authors' experience.

Off-flavor as the consumer's measure of drinking water safety

1995 ◽  
Vol 31 (11) ◽  
pp. 1-8 ◽  
Author(s):  
Michael J. McGuire
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Utilities ◽  
Regulatory Environment ◽  
Safe Drinking Water ◽  
Water Safety ◽  
Safe Water ◽  
Drinking Water Safety ◽  
Off Flavors ◽  
Health Related

If consumers detect an off-flavor in their drinking water, they are likely to believe that it probably is not safe. Water utilities will be defeating their best efforts to provide safe drinking water if they only meet health-related regulations and do not provide water that is free of off-flavor problems. The purpose of this paper is to explore the current U.S. regulatory environment and discuss how these regulations can adversely impact the control of off-flavors in drinking water. Utilities should adopt a water quality goal that allows them to not only meet the minimums of the regulations, but also meet the customer's highest standards - water that is free of off-flavors.

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