It is important to assess the likelihood of a critical fall (temporary or permanent) in water availability on the short term to determine whether or not action needs to be taken to secure supplies or to look for other alternatives to ensure that the population continues to have access to sufficient water for health and livelihoods
Very likely / Somewhat Likely / Unlikely
Indicator used for response monitoring ?
Threshold / Standard
A critical fall in water availability is defined as a fall that would lead to a reduction in the quantity of water used for drinking, cooking and hygiene below an acceptable level for protecting health. This may also involve a reduction in the quantity of water used for essential livelihoods activities. Water available is the quantity water per person per day that is potentially accessible to the population concerned. Availability may be reduced by events such as falling availability of local water resources at the end of the rainy season, mechanical, financial, logistics or other problems with a managed water-supply system, an increase in the population on sites, security incidents that interrupt a water-tankering operation etc.
Guidance for pre-crisis/baseline
Published data such as hydrological and hydrogeological records, and programme reports may also be available.
Key informant, observation