Water Safety Plan (WSP)

Water Safety Plan is a methodology recommended by the World Health Organization (WHO) since 2004 to ensure safe drinking water. (access here to WHO/IWA manual)

This methodology is based on risk assessment and risk management throughout the system, from catchment to the consumer. In this way it is possible to identify and anticipate any problems that may exist and implement measures to prevent them from occurring.

WSP provides guidance on how to apply effective and achievable management actions in order to improve the integrity of the drinking water supply system. As result, earlier detection of deviation from the normal operation provide a timely and faster reaction to never compromise the delivery of safe drinking water.

WSP Methodology

The Water Safety Plan methodology applied by CMMartinho Consulting is based on the WHO Guidelines and EN15972-2. Therefore, it does not only take into account the water quality but also that the water is continuously provided with the quantity and the pressure appropriate to the needs of its users. As such, this risk assessment and risk management approach makes it possible to maximize its benefits and to ensure the integrity of the system with the distribution of safe water.

Following is presented a simplified scheme of the WSP methodology.

WSP Methodology

Legal framework

In European Union, the Water Quality Directive was revised and it was introduced the need to implement WSP according to the WHO methodology or EN 15975-2: 2013.

How can we help you?

We provide:

  • Technical assistance to develop and/or implement WSP
  • Revision of WSP
  • Audit of WSP
  • Training of WSP

For more information, contact us

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CMMartinho Consulting

We work for safe water and sanitation.
With consolidated experience in the water and sanitation sector, we want to contribute to universal access to safe water and sanitation in the present and in the future. More >>


Specialist in Water Safety Plans and Sanitation Safety Planning, and belongs to the WHO group of trainers for these approaches.
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