Water Risk Assessment

A Water Risk Assessment is an analytical tool used to identify, measure and manage the water-related risks that affect organisations, territories and communities. In a world marked by water scarcity, climate change and growing pressure on aquatic ecosystems, assessing these risks is essential to ensure business continuity, urban water supply and the sustainability of agricultural and industrial activities.

More and more companies are building a Water Risk Assessment into their sustainability and resilience strategies, while governments use it to design river basin management plans and adaptation strategies for droughts and floods.

Definition

A Water Risk Assessment is the process of identifying, evaluating and prioritising water-related risks in a specific area or activity, considering both the availability and quality of the resource and the regulatory, social and reputational context. It usually covers three main dimensions:

• Physical risks: scarcity, droughts, floods and pollution, closely linked to water stress.
• Regulatory risks: legislative changes and abstraction or consumption restrictions.
• Reputational risks: negative perceptions among communities and consumers.

Why it matters

• Businesses: water is a critical input in sectors such as food, energy, textiles and mining, so a supply failure can halt operations.
• Governments: assessing risk helps anticipate supply crises and design water-security policies.
• Investors: financial institutions increasingly require water-risk analysis as part of their ESG criteria.

Methodologies and tools

1. Corporate tools
   • WRI Aqueduct: a global water-risk mapping tool.
   • WWF Water Risk Filter: basin-level analysis for companies.
   • CDP Water Disclosure: a global questionnaire to assess exposure and management.
2. Standards and regulatory assessments
   • ISO 14046: water footprint analysis with scarcity-based characterisation factors.
   • EU Water Framework Directive: river basin management planning.
3. Advanced models
   • Integration of climatic, social and economic data.
   • Forward-looking scenarios with horizons to 2030-2050.

Variables considered

• Water availability: river flows, aquifers and reservoirs.
• Current and projected demand: agricultural, industrial and urban.
• Water quality: physical, chemical and biological pollutants.
• Infrastructure: distribution efficiency and treatment capacity.
• Climatic factors: drought and flood projections.
• Social and political context: water-use conflicts.

Benefits

• Environmental: better planning of water use and conservation.
• Economic: avoids business interruptions and drought-related losses.
• Social: reduces conflicts with local communities.
• Strategic: strengthens reputation and investor confidence, and feeds into a water resilience strategy.

Current challenges

• A lack of reliable local data in many countries.
• Difficulty integrating physical, regulatory and social factors.
• Implementation costs for SMEs and small municipalities.
• Adapting to uncertain climate scenarios.

Relation to the circular economy and sustainability

A Water Risk Assessment encourages businesses and territories to reuse wastewater, optimise industrial and agricultural processes, invest in resilient infrastructure and apply circular design across the value chain. It works best alongside a water scarcity assessment and the measurement of the corporate water footprint.

A Water Risk Assessment is a strategic tool for anticipating, measuring and managing water-related risks in a world increasingly exposed to scarcity and climate variability, helping organisations make better-informed decisions and strengthen resilience. At Manglai we help companies measure their environmental footprint and assess their water and climate risks. Discover how Manglai can help you.