scope:

This document provides guidance on identifying and assessing impacts of climate change on stormwater 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, Assessment Principle^[1].

This document also provides examples of some of the impacts of climate change on stormwater 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 1 The user of this document be aware that depending on the jurisdiction of the stormwater utility, some of the examples provided may be outside the strict scope of the utility's authority, while being within the scope of other utilities. Collaboration with neighboring jurisdictions and authorities, and the development of shared vision and objectives relating to stormwater is encouraged.

NOTE 2 The user of this document should consider the situation and actions of neighbouring jurisdictions and senior levels of government.

NOTE 3 Combined sewer systems are included in this document regarding the activities of collection, transport, storage and treatment of stormwater. Non-combined wastewater systems are covered by ISO 24566-4^[3].