ISO 24566-2:2024

Overview

ISO 24566-2:2024 is an international standard developed by ISO, focusing on climate change adaptation for stormwater services. This document provides vital guidance for identifying and assessing the impacts of climate change on stormwater systems, and outlines strategies to adapt these systems to evolving environmental conditions. Building on the principles established in ISO 24566-1, it supports municipalities, utilities, and relevant authorities in developing robust, sustainable, and climate-resilient stormwater management practices. Combined sewer systems are addressed as they relate to stormwater collection, transport, storage, and treatment. The standard offers actionable examples and adaptation strategies that have been successfully implemented internationally.

Key Topics

• Impact Assessment: ISO 24566-2 guides users in determining how climate change - including more intense rainfall, sea level rise, and greater storm frequency - impacts stormwater infrastructure, catchment areas, and service operations.
• Vulnerability and Risk Analysis: The document details methodologies to evaluate vulnerabilities in existing stormwater systems, including infrastructure, operational procedures, and governance structures.
• Adaptive Responses: It highlights practical adaptation strategies such as infrastructure upgrades, improved system design, enhanced operational management, and integrated governance.
• Stakeholder Engagement: The standard emphasizes the importance of collaboration among municipal authorities, regulatory bodies, utilities, and communities for effective stormwater management.
• Monitoring and Metrics: Establishing and reviewing performance targets, metrics, and data accuracy is a key component, ensuring systems adapt responsively to ongoing climate changes.
• Financial Considerations: ISO 24566-2 examines the economic aspects of adaptation, including cost-benefit analysis and considerations for sustainable financing of adaptation measures.

Applications

ISO 24566-2:2024 is highly relevant to a range of practical contexts:

• Urban Stormwater System Management: Suitable for municipal planners and utilities responsible for stormwater assets such as pipe networks, retention basins, overflow structures, and pollution control facilities.
• Risk Preparedness and Emergency Planning: Offers tools for developing and testing emergency response plans for flooding, pollution events, and system failures caused by extreme weather conditions.
• Infrastructure Design and Upgrades: Supports the development of future-resistant designs and engineering practices to address increasing rainfall, flooding risks, and asset deterioration from climate impacts.
• Policy and Governance: Assists policymakers in reviewing and revising stormwater governance frameworks, defining organizational roles, and fostering inter-agency collaboration.
• Environmental Protection: Provides a framework for minimizing pollution, protecting water quality, reducing urban runoff, and supporting sustainable urban growth in the context of climate variability.
• Community Engagement: Encourages the inclusion of community stakeholders in decision-making and enhances public awareness regarding stormwater and climate adaptation issues.

Related Standards

• ISO 24566-1 - Lays out general principles for adapting water services to climate change, forming the foundation for the guidance in Part 2.
• ISO 24566-4 - Covers adaptation for non-combined wastewater systems.
• ISO 24513 - Provides vocabulary and key definitions for service activities related to drinking water, wastewater, and stormwater systems.
• ISO 24516-3 - Offers guidance for asset and operation management within water systems, supporting vulnerability and risk assessments.
• ISO 24591-1 & ISO 24591-2 - Discuss smart water management systems, including data and network integration relevant to monitoring and metrics under climate change pressures.

Conclusion

Implementing ISO 24566-2:2024 enables municipalities, utilities, and related authorities to systematically address the challenges posed by climate change to stormwater systems. By offering a structured approach to impact assessment, adaptation strategy development, financial planning, and stakeholder collaboration, this standard is a critical resource for resilient, sustainable, and future-proof stormwater services worldwide.

Keywords: ISO 24566-2, stormwater systems, climate change adaptation, water services, urban flooding, stormwater management, risk assessment, infrastructure resilience, combined sewer systems, water governance.