Introducing Water Safety Plans in Community Based Low-cost Water Supply Systems

2008 ◽  
Vol 3 (4) ◽  
Author(s):  
Sk. Abu Jafar Shamsuddin
Keyword(s):  
Water Supply ◽  
Low Cost ◽  
Water Supply Systems ◽  
Water Safety ◽  
Community Based ◽  
Water Safety Plans ◽  
Supply Systems

scholarly journals Water Safety Plans: Risk assessment for consumers in Drinking Water Supply Systems

1969 ◽  
Vol 15 (2) ◽  
Author(s):  
Andrea Pérez-Vidal ◽  
Claudia Amézquita-Marroquín ◽  
Patricia Torres-Lozada
Keyword(s):  
Risk Assessment ◽  
Drinking Water ◽  
Water Supply ◽  
Drinking Water Supply ◽  
Water Supply Systems ◽  
Water Safety ◽  
Water Safety Plans ◽  
Supply Systems

El usuario final es el último componente de los Sistemas de Abastecimiento de Agua Potable (SAAP) y se caracteriza porsu vulnerabilidad frente a los peligros debido a su cercanía al punto de consumo. En este estudio se realizó la evaluacióndel riesgo en el usuario final del SAAP de la ciudad de Cali abastecido por el río Cauca, enmarcado en la filosofía de losPlanes de Seguridad del Agua (PSA), usando herramientas como la matriz de peligros/eventos peligrosos, el monitoreo decalidad de agua, la aplicación de encuestas a los usuarios y la construcción de matrices semicuantitativas para estimaciónde riesgos. Los resultados evidenciaron poca percepción del riesgo y desconocimiento de la responsabilidad del usuariofinal en la protección de la calidad del agua, lo que puede generar conductas inadecuadas comprometiendo la integridaddel sistema interno de distribución. Aunque la mayoría de variables analizadas cumplieron la reglamentación nacional,algunos puntos registraron bajos valores de cloro residual y elevado recuento de bacterias heterotróficas, lo que sugierepotenciales riesgos por presencia de biopelícula. La participación y compromiso de todos los actores involucradosson estrategias fundamentales para evitar conductas inadecuadas y reducir riesgos, además del fomento de campañaseducativas como lo indica la reglamentación nacional.

scholarly journals Failure Experience Improvement System (FEIS) for water supply systems

2011 ◽  
Vol 14 (3) ◽  
pp. 646-658 ◽  
Author(s):  
Aditya Lukas ◽  
Ernest Mayr ◽  
Max Ruhri ◽  
Harald Katzmair ◽  
Reinhard Perfler
Keyword(s):  
Water Supply ◽  
Software Tool ◽  
Probability Of Failure ◽  
Water Utilities ◽  
Water Supply Systems ◽  
Water Safety ◽  
Graphical Visualization ◽  
Infrastructure Failure ◽  
Supply Systems ◽  
Failure Experience

The Failure Experience Improvement System (FEIS) is a software tool that was developed in order to contribute to a minimization of hazardous events and failures within water supply systems and thus to achieve increased water safety. Based on the analysis of failure systems by applying Social Network Analysis (SNA) to the water supply infrastructure, the FEIS enables water utilities to identify causes and effects of failure events and to locate vulnerable points in their infrastructure. Failure events and the relations between them are the basis for the FEIS database. This database draws upon information on failure events which have occurred in practice at water utilities in Austria and on a literature review and survey of guidelines. The FEIS, which is accessed online, is currently used by six Austrian water utilities for development and test purposes. It provides both graphical visualization of the failure network and analytical indicators to evaluate failure events. In this way, it supports the utilities in identifying corrective actions in order to minimize the probability of failure occurrence and to limit the damage to the system once a failure has occurred.

scholarly journals Legionella spp. Colonization in Water Systems of Hotels Linked with Travel-Associated Legionnaires’ Disease

2021 ◽  
Author(s):  
Antonios Papadakis ◽  
Maria Keramarou ◽  
Dimosthenis Chochlakis ◽  
Vassilios Sandalakis ◽  
Varvara Mouchtouri ◽  
...  
Keyword(s):  
Water Supply ◽  
Legionella Pneumophila ◽  
Cold Water ◽  
Water Systems ◽  
Hot Water ◽  
Water Supply Systems ◽  
Water Safety ◽  
Surveillance Network ◽  
Hot Water Supply ◽  
Supply Systems

Hotel water systems colonized with Legionella spp. have been the source of travel-associated Legionnaires’ disease and cases, clusters or outbreaks continue to be reported worldwide each year. A total of 132 hotels linked with travel-associated Legionnaires’ disease, as reported through the European Legionnaires’ Disease Surveillance Network, were inspected and tested for Legionella spp. during 2000–2019 by the public health authorities of the island of Crete (Greece). A total of 3,311 samples were collected: 1,885 (56.93%) from cold water supply systems, 1,387 (41.89%) from hot water supply systems, 37 (1.12%) were swab samples and two (0.06%) were soil. Of those, 685 (20.69%), were collected from 83 (62.89%) hotels, testing positive (≥ 50CFU/L) for Legionella pneumophila) serogroups 1-10, 12-14 and non-pneumophila species (L. anisa, L. erythra, L. tusconensis, L. taurinensis, L. birminghamensis, L. rubrilucens, L. londiniesis, L. oakridgensis, L. santicrusis, L. brunensis, L. maceacherii). The most frequently isolated L. pneumophila serogroups were 1 (27.92%) and 3 (17.08%). Significantly higher isolation rates were obtained from hot water supply systems (25.96%) versus cold water systems (16.98%) and swab samples (13.51%). A Relative Risk (R.R.) > 1 (p < 0.0001) was calculated for hot water temperature <55 °C (R.R.: 4.43), chlorine concentrations <0.2 mg/L (R.R.: 2.69), star rating <4 (R.R.: 1.73) and absence of Water Safety Plan implementation (R.R.: 1.57).

scholarly journals Guidelines for Drinking Water Safety Planning for West Bengal

2020 ◽  
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
West Bengal ◽  
Bulk Water ◽  
World Health ◽  
Water Supply Systems ◽  
Safety Planning ◽  
Water Safety ◽  
Improvement Project ◽  
Supply Systems

Water safety planning is considered an international best practice for assessing and managing public health risks from drinking water supply systems. Under the West Bengal Drinking Water Sector Improvement Project and in close collaboration with the World Health Organization, the Asian Development Bank assisted in developing these water safety planning guidelines for the state of West Bengal. This document offers practical guidance for taking a water safety planning approach to bulk water supply systems, particularly in developing and implementing the stages of rural drinking water delivery service schemes in India and elsewhere.

scholarly journals Water safety planning for small water supply systems: the framework and control measures

2017 ◽  
Vol 17 (6) ◽  
pp. 1524-1533 ◽  
Author(s):  
Grace O. Oluwasanya ◽  
Richard C. Carter
Keyword(s):  
Water Supply ◽  
Control Measures ◽  
World Health ◽  
Management Approach ◽  
Water Supply Systems ◽  
Safety Planning ◽  
Water Safety ◽  
Small Systems ◽  
Management Procedures ◽  
Supply Systems

Abstract A water safety plan (WSP) is a preventive comprehensive risk assessment and management approach to ensuring the safety of a drinking water supply from source to tap for public health protection. The concept was introduced in the last decade in international guidance documents and has been applied widely across a varied range of water supply systems, particularly, the public water utilities and to a lesser extent towards small systems. Mainstreaming water safety intervention for small systems however, would ensure safe household water to a wider population, alleviate poverty and hunger through water for use in support of livelihood activities, and help towards achieving the sustainable development goals. Self-supply hand-dug wells in Abeokuta, Nigeria, were assessed using the step-by-step World Health Organization WSP model, mainly from the relevant system assessment to operational monitoring and management procedures. This paper reviewed the methodology of water safety planning and flagged the issue of ‘who’ conducts WSP for small systems. The paper also evaluated major control measures critical to self-supply and suggested an apt WS planning model for the systems. The WSP framework for self-supply systems incorporated an institutional aspect for WSP coordination.

Achieving sustainable water supply through better institutions, design innovations and Water Safety Plans – an experience from Nepal

2015 ◽  
Vol 5 (4) ◽  
pp. 625-631 ◽  
Author(s):  
Pamela White ◽  
Indra Raj Badu ◽  
Parikshit Shrestha
Keyword(s):  
Water Supply ◽  
Water Safety ◽  
Community Based ◽  
Rural Village ◽  
Sustainable Water Supply ◽  
Hands On ◽  
Rural Water ◽  
Management Project ◽  
Water Safety Plans ◽  
The Government

Sustainable functionality of rural water infrastructures is a major challenge in Nepal, as elsewhere. This paper looks at systems for improved community-based water supply and sanitation management in the Rural Village Water Resources Management Project (RVWRMP), in mid and far west Nepal. The paper analysed 496 rural, community-managed drinking water and sanitation schemes (with 30 to 250 beneficiary households per scheme) supported by RVWRMP (2006–2014). Observed results are: 91.5% fully functional, 8.3% partially functional and 0.2% of schemes closed due to natural disasters and social conflicts. This compares very favourably to the systems implemented by the government of similar age. We consider that the experience gained in RVWRMP provides relevant lessons on how to safeguard the functionality of rural water services infrastructure systems. The key elements noted by our staff are: prioritisation of the schemes by the community; application of quality implementation and user committee management; Water Safety Plans and active maintenance; and hands-on technical support and monitoring.

scholarly journals Evaluation of standardized scored inspections for Legionnaires' disease prevention, during the Athens 2004 Olympics

2006 ◽  
Vol 134 (5) ◽  
pp. 1074-1081 ◽  
Author(s):  
Ch. HADJICHRISTODOULOU ◽  
G. GOUTZIANA ◽  
V. MOUCHTOURI ◽  
Ch. KAPOULA ◽  
A. KONSTANTINIDIS ◽  
...  
Keyword(s):  
Water Supply ◽  
Scoring Systems ◽  
Water Supply Systems ◽  
Cooling Towers ◽  
Test Results ◽  
Water Safety ◽  
Safety Hazards ◽  
Microbiological Test ◽  
Legionnaires Disease ◽  
Supply Systems

The study was designed to determine the contribution of standardized scored inspections implemented during the Athens 2004 Pre-Olympic and Olympic period, in assessing the presence of Legionella spp. in water sites. Inspection grading scores of 477 water supply systems, 127 cooling towers and 134 decorative fountains were associated with the corresponding microbiological test results of 2514 samples for Legionella spp. Nine violations of water supply systems and nine of cooling towers significantly associated with positive microbiological test results, and four violations of water supply systems and one of cooling towers were among those designated as ‘critical’ water safety hazards in the inspection reports. The study documents a strong correlation [water supply systems (RR 1·92), cooling towers (RR 1·94)] between unsatisfactory inspection scoring results and Legionella-positive microbiological test results (in excess of 10000 c.f.u./l) and suggests the utility of inspection scoring systems in predicting Legionella proliferation of water systems and in preventing Legionnaires' disease.

scholarly journals Developing THMs’ Predictive Models in Two Water Supply Systems in Greece

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1422 ◽  
Author(s):  
Stavroula Tsitsifli ◽  
Vasilis Kanakoudis
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Predictive Models ◽  
Quality Parameters ◽  
Water Supply Systems ◽  
Water Safety ◽  
Water Treatment Process ◽  
Drinking Water Safety ◽  
Developmental Effects ◽  
Supply Systems

Disinfection is a very significant water treatment process for drinking water safety, as it inactivates pathogens from drinking water. However, disinfection-by-products (DBPs) are formed which are accused of contributing to cancer and reproductive/developmental effects. Research has provided many predictive models for the formation of DBPs based on various water quality parameters and following different methodologies. The present study aims at developing predictive models for the formation of DBPs in two drinking water supply systems in Greece. Data from the water supply systems are used. A statistical analysis took place to identify the predictive models for the formation of Total trihalomethanes (TTHMs). The results showed that some of the developed models are more reliable than others. However, further study is necessary in order to obtain more data on variables that are affecting trihalomethanes (THMs) formation. Such models can be used mainly locally.

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