Water Safety Plan

  • 2015 BenefitsofWaterSafetyPlansThe Water Safety Plan (WSP) methodology, which aims to enhance safety of drinking water supplies, has been recommended by the World Health Organization since 2004. WSPs are now used worldwide and are legally required in several countries. However, there is limited systematic evidence available demonstrating the effectiveness of WSPs on water quality and health. Iceland was one of the first countries to legislate the use of WSPs, enabling the analysis of more than a decade of data on impact of WSP. The objective was to determine the impact of WSP implementation on regulatory compliance, microbiological water quality, and incidence of clinical cases of diarrhea. Surveillance data on water quality and diarrhea were collected and analyzed. The results show that HPC (heterotrophic plate counts), representing microbiological growth in the water supply system, decreased statistically significant with fewer incidents of HPC exceeding 10 cfu per mL in samples following WSP implementation and noncompliance was also significantly reduced (p < 0.001 in both cases). A significant decrease in incidence of diarrhea was detected where a WSP was implemented, and, furthermore, the results indicate that population where WSP has been implemented is 14% less likely to develop clinical cases of diarrhea.

  • Overview of the WOP between EMSAPUNO and COPASA2015 EMPASPUNO COPASA

  • 2015 ManualSeguridadDeAguaManual para el desarrollo de planes de seguridad del agua - Metodología pormenorizada de gestión de riesgos para proveedores de agua de consumo. 

    En 2004, las Guías de la OMS para la calidad del agua potable recomendaron que los proveedores de agua elaboraran y ejecutaran “planes de seguridad del agua” (PSA) para evaluar y gestionar los riesgos de forma sistemática. Desde entonces, cada vez más gobiernos y autoridades reguladoras, proveedores de agua y profesionales han aceptado este método, pero además han solicitado orientación adicional.  El presente cuaderno didáctico, esperado desde hace largo tiempo, responde a esta demanda, describiendo, de forma clara y práctica, como elaborar y ejecutar un PSA. Proporciona orientación paso a paso, en 11 módulos didácticos correspondientes a los diferentes pasos clave del proceso de elaboración y ejecución del PSA.



  • The present report analyses the Water Operators’s Partnership (WOP) between the Empresa Municipal de Saneamiento Básico de Puno Sociedad Anónima (EMSAPUNO S.A.), located in the department of Puno, Peru, and the Companhia de Saneamento de Minas Gerais (COPASA), located in Belo Horizonte, Brazil. In this WOP, EMSAPUNO is the recipient partner or mentee, while COPASA is the mentor utility. The partnership aims to support EMSAPUNO in the development of a Water Safety Plan (WSP) for the city of Puno’s drinking water supply system.2016casestudyemsapuno

  • wop latamThe WOP comes from the invitation that Empresa Municipal de Saneamiento Básico de Puno SA (EMSAPUNO) received for participating in a Regional Workshop for capacity building about water safety plans held in November of 2012 in Quito (Ecuador), financed by UN-Habitat/GWOPA, with the collaboration of IWA and Cap-Net.

    Thereafter, EMSAPUNO, with the support of WOP-LAC, was put in contact with Companhia de Saneamento de Minas Gerais (COPASA) from Brazil, that contributed and supported to develop the Peruvian company own safety plan in the city of Puno, accompanied with visits in water plants in both countries.

  • wop namerica

    The aim of this WOP is to construct and operate an iron and manganese removal treatment facility

  • wop africa

    The aim of this WOP is to work jointly between operators with Water Safety Plan 

  • wop latam

    The aim of this WOP is to revitalise the sewerage network 

  • wop arabThe MoU for this WOP between the Water and Sewerage Auhthority (WSSA) of Palestine and the Office National de l'Electricité et de l'Eau Potable (ONEE) of Morocco has been signed in November 2013 with the main objective of carrying out a diagnosis of the water supply and water quality monitoring system as well as implementing the WSP in Bethlehem, Palestine.