SDG 6 and ISO/UNDP 53001: clean water and sanitation through the audit lens
When SDG 6 is a priority in an ISO/UNDP 53001 system, the auditor first asks where the sites and key suppliers are located and which river basins they draw from or discharge into. They then check that water objectives follow from that analysis, are monitored site by site, and that external claims stay in line with results.
Updated: · edition covered: ISO/UNDP 53001:2026
A goal that is intensely local
SDG 6, ‘Clean water and sanitation’, is one of the 17 goals set in 2015 for the 2030 Agenda. It covers access to safe drinking water and sanitation, water quality, efficient use of water and the protection of water-related ecosystems.
Unlike most goals, water is judged basin by basin. A cubic metre withdrawn in a water-stressed area does not weigh the same as one taken elsewhere. That is what structures an ISO 53001 SDG 6 audit: a group-wide consolidated total says little about the real contribution.
Sectors frequently concerned
| Sector | Water issue | Interested party often cited |
|---|---|---|
| Beverages, food processing | Withdrawals, effluent quality | Water agencies, neighbouring farmers |
| Textiles, chemicals, paper | Effluents, hazardous substances | Local residents, environmental regulators |
| Water and sanitation utilities | Access, continuity, pricing | Customers, local authorities |
| Data centres | Cooling, consumption during dry periods | Local authorities, network operators |
| Tourism, hospitality | Seasonal consumption, wastewater treatment | Municipalities, local populations |
ISO 53001 SDG 6: context, objective, measurement
The auditor begins with clause 4. The context analysis (4.1) should bring out the water situation of each site and, where relevant, of the main suppliers; the interested-party analysis (4.2) shows who else depends on the resource. Without that groundwork, making SDG 6 a priority is hard to justify.
Next come the objectives set under clause 6: lower withdrawals at a named site, better quality for a given discharge, decent sanitation for workers on a construction project. Finally, under clause 9, the auditor confirms that meters, analyses and readings exist, that they are reliable and that top management reads the results. At this point the ISO/UNDP 53001 standard fits readily alongside an existing ISO 14001 system, provided the contribution angle remains visible.
What the auditor asks to see
- An analysis of water conditions for each site, not only at group level.
- Objectives that distinguish withdrawal, consumption and discharge.
- Traceable metering and analysis data, with the method stated whenever a value is estimated.
- Evidence that water was weighed in investment or site-location decisions.
- Interviews with site managers who know their local objectives.
Findings raised on SDG 6
- A single total-consumption indicator hides the trend at sites located in water-stressed areas.
- Staying within permitted discharge limits is presented as a contribution, although it is a matter of regulatory compliance.
- Water-intensive suppliers are named in the context analysis, then vanish from monitoring.
- A ‘zero water waste’ campaign is announced without any known baseline.
Neighbouring SDGs and planning requirements
- SDG 3 and ISO/UNDP 53001: good health and well-being through the audit lensFor SDG 3, an ISO/UNDP 53001 auditor starts with a question of scope: does the priority concern the health of employees, of customers and users, or of neighbouring communities? They then check that the choice stems from the context analysis, that it leads to measured objectives, and that top management actually uses the results when deciding.
- SDG 12 and ISO/UNDP 53001: responsible consumption and production through the audit lensWith SDG 12, the ISO 53001 audit follows the organisation's flows: materials bought, products designed, waste generated, information given to customers.
- SDG 14 and ISO/UNDP 53001: life below water through the audit lensSelecting SDG 14 in an ISO 53001 system requires a demonstrated link between the activity and marine or coastal environments: discharges that reach the sea, seafood sourcing, shipping, use of the coastline.
- ISO/UNDP 53001 clause 6: what the auditor checksISO 53001 clause 6 deals with planning.
Frequently asked questions
Can a service company select SDG 6?
Yes, if the context analysis supports it, for instance offices located in a water-stressed region or a business that relies on a water-intensive supply chain. The auditor checks that the priority is not confined to the water used in the company's premises when the main issue lies elsewhere in the value chain.
Can water data be estimated?
An estimate is acceptable where no direct measurement is available, provided the method is written down, applied consistently and reviewed periodically. The auditor raises a finding when estimated values are reported as measured, or when the method changes from one year to the next without explanation, so that trends can no longer be compared.
How does this relate to ISO 14001 certification?
Both standards share the ISO harmonized structure, so the same monitoring processes can serve both. ISO 14001 addresses environmental aspects; ISO 53001 asks for a reading in terms of contribution to SDG 6. The auditor checks that this reading exists and that the objectives are not simply lifted from the environmental programme.