Natural Disaster Mitigation in Drinking Water and Sewerage Systems – Guidelines for Vulnerability Analysis


General Information:

Author: Pan American Health Organization, WHO

Year of publication: 1998

Available languages: English

Details of Assessment:

Type of assessment: Vulnerability assessment

Details: Guidelines meant to be consulted by engineers and technical personnel in water service companies to project the performance of drinking water and sewerage systems in case of natural disasters

Format of assessment: Guideline

Estimated costs for conducting: No information

Estimated duration of assessment: No information

To be carried out by whom: Private individuals and firms

Details: Engineers and technical personnel in water service companies

Institutional scale of use: Local/community

Assesment to be used by which target audience: Multiple actors

Details: Local decision makers and water service companies

Output: Report


Coverage & Methodology:

Developed by which sector: Development cooperation

Applied in practice: Yes

Geographic coverage in analysis: Latin America

Potential geographic coverage: Pan-American region

Sectors covered: Water sector

Method used: Index development

Description of methodology: Mapping water services company's technical vulnerabilities to natural hazards and developing administrative and technical mitigation measures. Using a matrix allows easy visualization of the elements involved in vulnerability analysis. Four matrices are presented, addressing operative aspects, aspects of administration and response capacity, physical aspects and impact on the service, mitigation and emergency measures

Risk framework used: No explicit use of risk framework

Risk components incorporated: Hazard

Hazards and impacts considered in the assessment: Cyclone (including tropical storm, hurricane and typhoon), Drought, Earthquake, Flood, Landslide, Volcanic eruption

Details: Technical capacities of water service companies

Participatory elements: No

Consideration of interconnectedness and -dependencies of risks: No

Adressing uncertainty: No

Scope of assessment: Identification of risks, assessment of impacts

Relevance for losses and damages:

Economic/Non-Economic losses incorporated: Economic

Applicability for entire risk spectrum (from extreme weather events to slow onset processes): No

Details: Only EWE


Recommendations for Adaptation measures included in Climate Risk Assessment: No

Usefulness for political purposes: Climate funds

Applied by whom: Not specified

Open access: Yes