What Is a Water Footprint? The Importance of Corporate Water Footprint Calculation

Around the world, approximately 2.2 billion people still do not have access to clean water. In Turkey, increasing population and the effects of the climate crisis are putting more and more pressure on water resources every day. While experts emphasize that saving water is critical for a sustainable future, projections indicate that by 2050, the amount of annual water available per person in Turkey may decrease to around 1,069 m3.

This reality makes the use and management of water necessary for both individuals and organizations. With the growing risk of drought, depletion of resources, and regulatory pressure, calculating a company’s water footprint has become a critical need.

In this article, we answer what a water footprint is, how it is calculated, and why it matters at the corporate level. We also explain how businesses can create a difference through ISO 14046-compliant corporate water footprint reporting.

What Is a Water Footprint?

A water footprint is an environmental indicator that explains the amount of water used in the production, consumption, and activities of an organization or product. It covers the total water used during product production. A water footprint is calculated as direct and indirect water footprints and expressed as the total amount of water used.

A water footprint consists of three main components:

Blue water footprint: Represents the amount of groundwater and surface water used to produce a product or service; used in agricultural production, industrial processes, and domestic activities.

Green water footprint: Refers to rainfall stored in soil or vegetation that is not replenishing groundwater. Green water represents the amount of rainfall used during production processes.

Grey water footprint: Indicates the amount of freshwater required to dilute water pollution to meet current water quality standards. It is measured as the freshwater needed for dilution to render pollutants harmless.

When these three elements are calculated together, a company’s or product’s water footprint is analyzed holistically.

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What Is a Corporate Water Footprint?

Corporate water footprint refers to the total amount of water—both direct and indirect—that a company uses across its activities.

Direct water footprint: Covers the water a company uses directly in its offices, factories, and production facilities.

Indirect water footprint: Includes water used in indirect processes such as product manufacturing, supply chain activities, or energy consumption.

When these two scopes are considered together, they reveal the organization’s overall water consumption profile and take the first step toward achieving environmental sustainability goals in water management.

Why Is Corporate Water Footprint Calculation Important?

Corporate water footprint calculation is no longer only an environmental responsibility—it is a strategic business decision. Investors and regulatory institutions consider water management data when evaluating sustainability performance. As a result, water footprint analysis provides important benefits to organizations:

• Resource efficiency: Reveals actual water consumption and provides opportunities to reduce costs and improve efficiency.
• Risk management: Helps take precautions against risks such as water scarcity, drought, and supply chain-related impacts.
• Transparency: Strengthens corporate reputation through measurable data in ESG reporting.
• Compliance: Achieving alignment with international standards such as ISO 14046 provides a competitive advantage in global markets.

How Is a Water Footprint Calculated?

ISO 14046 is an international standard for water footprint calculations. It is used to assess and reduce the impacts of water on the activities, products, or services of an organization. ISO 14046 provides a framework to measure and manage environmental impacts related to water consumption, water use, and wastewater discharge.

Goal and scope definition: Identify the processes, products, or activities to be assessed.

Data collection: Collect data on the facility’s physical characteristics and water usage.

Blue water scope: Analyze all sources of water consumption, such as utility-supplied water, bottled water, or PET bottle purchases.

Green water scope: If rainwater harvesting is used, the collected amount is taken into account.

Grey water scope: Review monthly wastewater quantities and characterization.

Calculation: Calculate the water footprint using the collected data.

Reporting: Report findings transparently in line with ISO 14046.

What Benefits Do Water Footprint Calculation and Reporting Provide to Organizations?

Corporate water footprint calculation helps make an organization’s environmental impacts measurable and manageable. As a result:

• Environmental sustainability performance is strengthened.
• Investor trust increases and brand reputation improves.
• Alignment with regulations and international standards becomes easier.
• Measurable progress is made toward net zero targets.

As 3pmetrics, we provide ISO 14046-aligned water footprint calculation and reporting services. With our tool, CWA, you can calculate your organization’s water footprint in a complete and comprehensive way.

To perfect your sustainability performance by adding sustainable water management, get in touch with us.