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ISO 24566-4:2025Published

Drinking water, wastewater and stormwater systems and services — Adaptation of water services to climate change impacts — Part 4: Wastewater services

Services et systèmes d’alimentation en eau potable, d’assainissement et de gestion des eaux pluviales — Adaptation des services de l’eau aux impacts du changement climatique — Partie 4: Services d’assainissement

Abstract / scope

This document provides guidance and requirements for identifying and assessing impacts of climate change on wastewater systems and on developing strategies for the adaptation to these impacts. The assessment of the impacts is based on the assessment principles described in ISO 24566-1.

This document also provides examples of some of the impacts of climate change on wastewater systems and of the responses that have been implemented by municipal water services or by the relevant jurisdiction (e.g. municipality or region served by the service). The examples of responses illustrate adaptation strategies that have been applied.

NOTE            Both combined and non-combined wastewater systems are included in this document regarding the activities of collection, transport, storage and treatment of wastewater.