1,098 research outputs found
A commentary on recent water safety initiatives in the context of water utility risk management.
Over the last decade, suppliers of drinking water have recognised the
limitations of relying solely on end-product monitoring to ensure safe water
quality and have sought to reinforce their approach by adopting preventative
strategies where risks are proactively identified, assessed and managed. This is
leading to the development of water safety plans; structured ‘route maps’ for
managing risks to water supply, from catchment to consumer taps. This paper
reviews the Hazard Analysis and Critical Control Point (HACCP) procedure on
which many water safety plans are based and considers its appropriateness in the
context of drinking water risk management. We examine water safety plans in a
broad context, looking at a variety of monitoring, optimisation and risk
management initiatives that can be taken to improve drinking water safety. These
are cross-compared using a simple framework that facilitates an integrated
approach to water safety. Finally, we look at how risk management practices are
being integrated across water companies and how this is likely to affect the
future development of water safety p
Implementing water safety plans: experiences from Uganda
The Quality Control Department (QCD) of National Water and Sewerage Cooperation (NWSC) is responsible for process
and water quality monitoring in 15 urban centres in Uganda, East Africa. Since 2002, NWSC has been working with the
Water, Engineering and Development Centre (WEDC), UK on a research project entitled “Risk Assessment and Management
of piped urban water supply” (Contract DFID KaR R8029). The research explored the development of a new approach
to controlling water quality in piped water systems termed Water Safety Plans (WSPs). WSPs are based on the principles
of Hazard Assessment and Critical Control Point (HACCP) used in the food industry and were recently codified in the
3rd edition of the World Health Organisation (WHO) global Guidelines for Drinking Water Quality (GDWQ). NWSC is
the first water utility in the developing world to implement WSPs. This paper is the fourth in a series, paper one entitled
“Improving risk assessment and management in urban water supplies” was presented at the 28th WEDC Conference,
paper two and three entitled “Static risk mapping using a Geographic Information system” and “System assessment to
develop water safety plans” was presented at the 29th WEDC Conference. This paper discusses the experiences of NWSC
in implementing the new approach in two of its urban centres, and presents lessons learnt during the process
Water safety plans and climate change mitigation
[Excerpt] Definition
Quality water at affordable prices for all is a key
condition for the promotion of public health, environmental sustainability, and quality and safety of
life. In a context of growing external uncertainties
arising from changes in the climate and the environment, ensuring these conditions is an upward
concern and is of utmost relevance to increase
scientific research on the impacts of climate
change on water quality modification and in minimization/mitigation strategies
System assessment to develop water safety plans
Water Safety Plans (WSPs) are risk management tools
designed to assure the safety of drinking water. WSPs have
the advantage that they help minimise the risks to water
contamination through identification and management of
vulnerable points within a water supply system, which
could allow microbial hazards to enter. This paper discusses
one of the crucial elements in establishing WSPs, the
system assessment. It outlines findings from fieldwork
undertaken on a UK, Department for International Development
(DFID) funded project on development of WSPs in
Kampala, Uganda
Community use of H2S (hydrogen sulphide) as a verification tool for water safety plans
Through the development of Water Safety Plans at the household level it is important that while the community
understand their system of water delivery, measures are taken to protect their water source. It has
been found that the cycle and introduction of Water Safety Plans will only be complete with the introduction
of household’s water treatment and safe storage. In the rural setting of Sri Lanka the households are often
the producer of water, it is important that the household is empowered to mitigate risks and has a method
to test their water for harmful microbiological contamination. The H2S provides a tool for verification and
provides an extrinsic motivation for the use of effective purification methods. Through the implementation
of the Water Safety Plans and the verification by the use of H2S Kit, can households be confident their water
is safe to drink
Cleaner, safer water through water safety plans
National Center for Environmental Health (NCEH) Global Water, Sanitation, and Hygiene Team\u2019s Water Safety Plan Assistance.wsp_success_story.pd
Sustainability of Water Safety Plans Developed in Sub-Saharan Africa
In developing countries, the drinking water supply is still an open issue. In
sub-Saharan Africa, only 68% of the population has access to improved sources of
drinking water. Moreover, some regions are affected by geogenic contaminants (e.g.,
fluoride and arsenic) and the lack of access to sanitation facilities and hygiene practices
causes high microbiological contamination of drinking water in the supply chain. The
Water Safety Plan (WSP) approach introduced by the World Health Organisation (WHO)
in 2004 is now under development in several developing countries in order to face up to
these issues. The WSP approach was elaborated within two cooperation projects
implemented in rural areas of Burkina Faso and Senegal by two Italian NGOs
(Non-Governmental Organisations). In order to evaluate its sustainability, a questionnaire
based on five different sustainability elements and a cost and time consumption evaluation
were carried out and applied in both the case studies. Results demonstrated that the
questionnaire can provide a useful and interesting overview regarding the sustainability of
the WSP; however, further surveys in the field are recommended for gathering more
information. Time and costs related to the WSP elaboration, implementation, and
management were demonstrated not to be negligible and above all strongly dependent on
water quality and the water supply system complexity
PERCEPTION OF WATER USERS TO HEALTH IMPACTS: IMPLICATIONS FOR URBAN SELF SUPPLY WATER SAFETY PLANS
Water safety plans were introduced ten years ago in international guidance documents.ª¤? The plans have been extensively applied across developed and developing countries and for rural and urban water supply systems.ª¤? The adoption and development of the same for self supply systems is, however, long coming.ª¤? Like any intervention, water safety plans require respectively, adoption, development, and implementation.ª¤? Water safety policy will be ineffective and technically useless without adoption.ª¤? Adoption is linked with perception and attitude of water users, who in the context of self supply systems, are also the asset (source) owners, the water supplier, and invariably, the adopters.ª¤? This paper investigates water user«¤??s insight to health impact in Abeokuta, Nigeria. The study is premised within a wider research, in which a total of 105 interviews were conducted betweenª¤? 2007 and 2008, towardsª¤? appropriate water safety plans for self supply systems.ª¤? The interviews were semi-structured with open ended questions.ª¤? 61 one respondents were interviewed on health related matters. Details of the raw data were subsequently coded. Findings revealed a general denial attitude to health related impact and five main factors that modulate the identified stance.ª¤? The paper discusses how the factors combine to shape perception to health impacts and examine the implications on water safety planning for particularly self supply systems.ª¤
PERCEPTION OF WATER USERS TO HEALTH IMPACTS: IMPLICATIONS FOR URBAN SELF SUPPLY WATER SAFETY PLANS
Water safety plans were introduced ten years ago in international guidance documents.ª¤? The plans have been extensively applied across developed and developing countries and for rural and urban water supply systems.ª¤? The adoption and development of the same for self supply systems is, however, long coming.ª¤? Like any intervention, water safety plans require respectively, adoption, development, and implementation.ª¤? Water safety policy will be ineffective and technically useless without adoption.ª¤? Adoption is linked with perception and attitude of water users, who in the context of self supply systems, are also the asset (source) owners, the water supplier, and invariably, the adopters.ª¤? This paper investigates water user«¤??s insight to health impact in Abeokuta, Nigeria. The study is premised within a wider research, in which a total of 105 interviews were conducted betweenª¤? 2007 and 2008, towardsª¤? appropriate water safety plans for self supply systems.ª¤? The interviews were semi-structured with open ended questions.ª¤? 61 one respondents were interviewed on health related matters. Details of the raw data were subsequently coded. Findings revealed a general denial attitude to health related impact and five main factors that modulate the identified stance.ª¤? The paper discusses how the factors combine to shape perception to health impacts and examine the implications on water safety planning for particularly self supply systems.ª¤
- …